Abstract

The present disclosure provides a molding system for fabricating a FRP composite article. The molding system includes a detector, a resin dispenser, a processing module, and a molding machine. The detector is configured to capture a graph of a woven fiber from a top view. The resin dispenser is configured to provide a resin to the woven fiber to form a FRP. The processing module is configured to receive the graph and a plurality of parameters of the FRP. The processing module includes a CNN model, and is configured to use the CNN model to obtain a plurality of predicted mechanical properties of the FRP according to the graph and the plurality of parameters of the FRP. The molding machine is configured to mold the FRP to fabricate the FRP composite article according to the plurality of predicted mechanical properties.

IPC Classes  ?

• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
• B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
• B29C 70/54 - Component parts, details or accessories; Auxiliary operations

Abstract

The present disclosure provides a method of mesh generation for an RTM process, including operations of: obtaining a geometry of a target object; generating a solid mesh of the target object according to the geometry; obtaining material characteristics of the target object; assembling a runner mesh with the solid mesh, wherein the runner mesh has grid dimensions different from those of the solid mesh; determining process parameters of the RTM process; and generating a forecasted result of the RTM process according to the solid mesh, the runner mesh, the process parameters, and the material characteristics. Generating the solid mesh includes operations of: dividing the geometry into modules; generating a first and second modular meshes corresponding to a first and second modules, wherein the second modular mesh abuts the first modular mesh, and the second modular mesh has grid dimensions different from those of the first modular mesh.

IPC Classes  ?

• B29C 70/54 - Component parts, details or accessories; Auxiliary operations
• B29C 70/00 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• G06F 30/20 - Design optimisation, verification or simulation
• G06F 9/455 - Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
• G06F 30/33 - Design verification, e.g. functional simulation or model checking

Abstract

The present disclosure provides a method of measuring a plurality of voids in an underfill material of an underfill package. The method includes operations of obtaining a welding angle profile of the underfill package; obtaining a simulated void profile of the underfill package according to the welding angle profile; determining a plurality of high-risk void regions according to the simulated void profile; simulating, according to a selected pressure and a selected temperature of the underfill material, a first high-risk void region of the plurality of high-risk void regions to generate an updated void profile; and determining whether the updated void profile meets a void requirement of the underfill package.

IPC Classes  ?

• H01L 21/66 - Testing or measuring during manufacture or treatment
• H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
• G06F 30/39 - Circuit design at the physical level
• G06F 113/18 - Chip packaging

Abstract

The present disclosure provides an injection molding method and system. The injection molding method includes the operations of: sensing physical parameters associated with an injection molding product; analyzing physical parameters to generate an optimized digital twin model of a physical asset; and producing the injection molding product according to the optimized digital twin model. Analyzing the physical parameters to generate the optimized digital twin model of the physical asset includes operations of: simulating, by a digital twin model, the physical parameters to generate simulated parameters according to first input parameters; validating whether the digital twin model is an optimized digital twin model according to the simulated parameters and the physical parameters; and optimizing the digital twin model to generate the optimized digital twin model when the physical parameters differ from the simulated parameters.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation
• B29C 45/76 - Measuring, controlling or regulating

Abstract

The present disclosure provides an injection-molding system for preparing an injection-molded article using a computer-aided engineering (CAE) simulation. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured to generate a stress distribution of the molding resin in the mold cavity based on a molding condition for the molding machine, wherein the stress distribution of the molding resin is generated by taking into consideration an elastic effect of the molding resin; and a controller coupled to the processing module and configured to control the molding machine with the molding condition using the generated stress distribution of the molding resin to perform an actual molding process for preparing the injection-molded article.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/03 - Injection moulding apparatus

Abstract

The present disclosure provides a method of measuring an extensional viscosity of a polymer melt and a capillary injection system. The method includes the operations of: based on a weighted GNF viscosity model, obtaining a viscosity profile of the polymer melt according to a transport equation, a Navier Stokes equation, and a Trouton function; measuring a pressure drop of the polymer melt; obtaining a general viscosity of the polymer melt from the viscosity profile according to the pressure drop, wherein the general viscosity comprises a shear viscosity of the polymer melt and the extensional viscosity of the polymer melt; and extracting the extensional viscosity from the general viscosity.

IPC Classes  ?

• G01N 11/04 - Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
• G01N 11/08 - Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
• G01N 11/00 - Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties

Abstract

A molding system includes a molding machine, a mold disposed on the molding machine, a processing module, and a controller operably communicating with the processing module. The molding machine includes a barrel, a screw moving within the barrel, a driving motor driving the screw to move a molding material. The mold has a mold cavity with a die swell structure for being filled with the molding material. The processing module simulating a filling process of the molding material based on a molding condition including a predetermined screw speed for the molding machine, wherein simulating the filling process of the molding material comprises simulating a die swell effect of the molding material in the die swell structure by taking into consideration of an effective factor, a shear viscosity, an extension viscosity, a shear rate, and a molecular orientation effect of the molding material.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material

Abstract

The present disclosure provides a method for measuring an underfill profile of an underfill material in an underfill cavity having a plurality of solder bumps. The method includes the operations of: determining a mesh having a plurality of elements according to the underfill cavity; calculating a reference force according to the underfill cavity; obtaining a driving force and a flow speed of the underfill material according to a plurality of weighting factors and the reference force, wherein the plurality of weighting factors respectively correspond to the plurality of elements; obtaining a plurality of volume fractions respectively corresponding to the plurality of elements according to the flow speed; and obtaining the underfill profile according to the plurality of volume fractions.

IPC Classes  ?

• H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
• H01L 23/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details of semiconductor or other solid state devices
• H01L 21/66 - Testing or measuring during manufacture or treatment

Abstract

The present disclosure provides a method of measuring a true shear viscosity profile of a molding material in a capillary and a molding system performing the same. The method includes the operations of: determining a setpoint temperature of the molding material before injecting into the capillary; obtaining an initial shear viscosity profile at the setpoint temperature with respect to a shear rate of the molding material; fitting an initial temperature profile with respect to the shear rate according to the initial shear viscosity based on Cross William-Landel-Ferry model; fitting a first shear viscosity profile and a first temperature profile with respect to the shear rate according to the initial temperature profile based on the Cross-WLF model; and setting the first shear viscosity profile as the true shear viscosity profile when a difference between the first temperature profile and the initial temperature profile is not greater than a threshold.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/78 - Measuring, controlling or regulating of temperature
• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• G05B 19/18 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

The present disclosure provides a method of producing a molded product. The method comprises steps of performing, via computer-assisted engineering simulation software, a first simulation process to generate a plurality of molding conditions comprising a default injection velocity profile and a default packing pressure profile; conducting, via an injection-molding apparatus, a trial molding to inject a molding material into a mold using the default molding conditions and sensing a plurality of in-mold pressures at different sites in a mold cavity of the mold; and conducting, via an injection-molding apparatus, an actual molding to produce the molded product using the default molding conditions if a deviation of the in-mold pressures at an endpoint of a packing stage is less than a target value.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• G06F 30/20 - Design optimisation, verification or simulation
• B29C 45/76 - Measuring, controlling or regulating
• G06F 11/00 - Error detection; Error correction; Monitoring
• G06F 113/22 - Moulding

Abstract

The present disclosure provides a molding system for preparing an injection-molded plastic article. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin including a plurality of polymer chains; a processing module configured to generate an anisotropic viscosity distribution of the molding resin in the mold cavity based on a molding condition for the molding machine; wherein the anisotropic viscosity distribution of the molding resin is generated based in part on consideration of an integral effect of a volume fraction and an aspect ratio of the plurality of fibers; and a controller coupled to the processing module and configured to control the molding machine with the molding condition using the generated anisotropic viscosity distribution of the molding resin to perform an actual molding process for preparing the injection-molded plastic article.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• B29C 45/76 - Measuring, controlling or regulating

Abstract

A molding system includes a molding machine having a screw, a driving motor driving the screw to move a molding resin; a mold disposed on the molding machine and connected to the barrel of the molding machine to receive the molding resin, and having a mold cavity with a die swell structure for being filled with the molding resin; a processing module simulating a filling process of the molding resin from the barrel into the molding cavity based on a molding condition including a predetermined screw speed for the molding machine; and a controller operably communicating with the molding machine to control the driving motor of the molding machine based on the molding conditions to move the screw at the predetermined screw speed to transfer the molding resin at a corresponding flow rate to perform an actual molding process for preparing the injection-molded article.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/50 - Axially movable screw
• B29C 45/60 - Screws
• B29C 45/62 - Barrels or cylinders
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

The present disclosure provides a clamping assembly in operative connection with a mold of an injection-molding apparatus. The clamping assembly includes a fixed plate, a rear plate, a plurality of tie bars, a movable plate, a driving module, and a temperature adjuster. The rear plate is spaced apart from the fixed plate. The tie bars are interlinked with the fixed plate and the rear plate and provided with a plurality of channels. The movable plate, between the fixed plate and the rear plate, is capable of moving with respect to the fixed plate along the tie bars. The driving module interlinks the rear plate and the movable plate. The temperature adjuster is employed to supply a fluid into the channels to remove heat from the tie bars, thereby preventing non-uniform thermal expansion of the tie bars, and hence preventing the structural wear and flash issues.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• B29C 45/66 - Mould opening, closing or clamping devices mechanical
• B29C 45/17 - Component parts, details or accessories; Auxiliary operations
• B29C 45/72 - Heating or cooling
• B29C 45/78 - Measuring, controlling or regulating of temperature

Abstract

The present disclosure provides a molding system for preparing molding articles. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured to generate a mechanical pressure distribution of the molding resin in the mold cavity based on a molding condition for the molding machine, wherein the mechanical pressure distribution of the molding resin is generated based in part on a bulk viscosity effect of the molding resin; and a controller operably communicating with the processing module and configured to operate the molding machine for transferring the fluid molding material into the mold cavity with the molding condition using the generated pressure distribution of the molding resin to perform an actual molding process for preparing the molding article.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

The present disclosure provides a molding system for preparing injection-molded articles. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured to generate an anisotropic viscosity distribution of the molding resin in the mold cavity based on a molding condition for the molding machine, wherein the anisotropic viscosity distribution of the molding resin is generated based in part on an elastic effect of the molding resin; and a controller operably communicating with the processing module and configured to control the molding machine with the molding condition using the generated anisotropic viscosity distribution of the molding resin to perform an actual molding process for preparing the injection-molded article.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material

Abstract

A system for setting injection-molding conditions and a method for setting actual molding conditions of an injection-molding machine are disclosed. The system includes a computer and an injection-molding equipment. The computer is configured to simulate, via computer-aided simulation software, a virtual molding using a plurality of design parameters to generate a plurality of provisional molding conditions. The injection-molding equipment is associated with the computer and configured to perform at least one trial molding using the provisional molding conditions to obtain a plurality of intermediate molding conditions. The computer optimizes the provisional molding conditions to obtain actual molding conditions in accordance with the intermediate molding conditions.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• G06F 30/20 - Design optimisation, verification or simulation
• G06F 30/10 - Geometric CAD
• G06F 119/18 - Manufacturability analysis or optimisation for manufacturability
• G06F 113/22 - Moulding

Abstract

A system for setting injection-molding conditions and a method for setting actual molding conditions of an injection-molding machine are disclosed. The system includes a computer and an injection-molding equipment. The computer is configured to simulate, via computer-aided simulation software, a virtual molding using a plurality of design parameters to generate a plurality of provisional molding conditions. The injection-molding equipment is associated with the computer and configured to perform at least one trial molding using the provisional molding conditions to obtain a plurality of intermediate molding conditions. The computer optimizes the provisional molding conditions to obtain actual molding conditions in accordance with the intermediate molding conditions.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• G06F 30/20 - Design optimisation, verification or simulation
• G06F 30/10 - Geometric CAD
• G06F 119/18 - Manufacturability analysis or optimisation for manufacturability
• G06F 113/22 - Moulding

Abstract

A computer-implemented simulation method for use in a molding process by a computer process is disclosed. The method includes steps of specifying a simulating domain comprising a mold cavity and a barrel of an injection machine, wherein the barrel is configured to connect to the mold cavity; creating at least one mesh by dividing at least part of the simulating domain; specifying boundary conditions of the mesh by taking into consideration at least one motion of a screw in the barrel; and simulating a first injection-molding process of a molding material by using the boundary conditions to generate a plurality of molding conditions.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/80 - Measuring, controlling or regulating of relative position of mould parts
• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• B29C 45/78 - Measuring, controlling or regulating of temperature
• G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
• G06F 113/22 - Moulding

Abstract

The present disclosure provides a molding system for preparing an injection-molded article. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured to generate an extension rate distribution and a shear rate distribution of the molding resin in the mold cavity based on a molding condition for the molding machine; and a controller coupled to the processing module. The processing module is configured to generate the extension rate distribution and the shear rate distribution of the molding resin based in part on consideration of a geometry variation of the mold cavity. The controller is configured to control the molding machine with the molding condition using the generated extension rate distribution and the generated shear rate distribution of the molding resin to perform an actual molding process for preparing the injection-molded article.

IPC Classes  ?

• G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• G06F 113/08 - Fluids
• G06F 113/22 - Moulding
• G06F 113/10 - Additive manufacturing, e.g. 3D printing

Abstract

The present disclosure provides a molding system for preparing injection-molded articles. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured to generate a mixed anisotropic viscosity distribution of the molding resin in the mold cavity based on a molding condition for the molding machine; and a controller coupled to the processing module. The mixed anisotropic viscosity distribution of the molding resin is generated by taking into consideration an extension rate distribution and a shear rate distribution of the molding resin. The controller is configured to control the molding machine with the molding condition using the generated extension rate distribution and the generated shear rate distribution of the molding resin to perform an actual molding process for preparing the injection-molded article.

IPC Classes  ?

• B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
• B29C 49/76 - Neck calibration
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• B29C 45/03 - Injection moulding apparatus
• B29C 45/76 - Measuring, controlling or regulating
• B29K 23/00 - Use of polyalkenes as moulding material
• B29K 309/08 - Glass

Abstract

The present disclosure provides a molding system for preparing an injection-molded fiberless plastic article. The molding system includes a molding machine; a mold disposed on the molding machine; a processing module configured to generate an anisotropic viscosity distribution of the fiberless molding resin in the mold cavity; and a controller coupled to the processing module. The mold has a mold cavity for being filled with a fiberless molding resin including a plurality of polymer chains. The processing module is configured to generate the anisotropic viscosity distribution based on a molding condition for the molding machine and based in part on consideration of an orientation effect of the plurality of polymer chains. The controller is configured to control the molding machine with the molding condition using the generated anisotropic viscosity distribution of the fiberless molding resin to perform an actual molding process for preparing the injection-molded fiberless plastic article.

IPC Classes  ?

• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/03 - Injection moulding apparatus
• B29K 69/00 - Use of polycarbonates as moulding material

Abstract

The present disclosure provides a measurement method for a molding system comprising an upper mold and a lower mold forming a mold cavity. The method includes applying a pressure difference to a molding resin for driving the molding resin to flow into a preform in the mold cavity; detecting a flow front of the molding resin at a first position and a second position in the mold cavity; and calculating a flowing property of the molding resin based on the first position, the second position, a travelling time of the flow front from the first position to the second position, and the pressure difference.

IPC Classes  ?

• B29C 70/54 - Component parts, details or accessories; Auxiliary operations
• G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials
• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• G01N 11/06 - Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by timing the outflow of a known quantity
• G01N 11/04 - Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
• B29C 33/00 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor

Abstract

The present disclosure provides a measuring apparatus including a testing module. The testing module includes: a temperature-controlling cylinder having a top opening and a bottom opening; an upper piston and a lower piston respectively seal the top opening and the bottom opening of the temperature-controlling cylinder so that a testing chamber is formed inside the temperature-controlling cylinder, wherein the testing chamber has a longitudinal length; and a pipe surrounding the testing chamber along the longitudinal length in such a way that when a wire is provided along and in the pipe with a number of turns, a density of the turns has at least two different values over the longitudinal length.

IPC Classes  ?

• G01F 22/02 - Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for involving measurement of pressure
• G01N 9/02 - Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
• G01N 33/44 - Resins; Plastics; Rubber; Leather

Abstract

A molding system includes a mold having a mold cavity; a molding machine configured to fill the mold cavity with a composite molding resin including a polymeric material having a plurality of fibers; a processing module connected to the molding machine; and a controller connected to the computing apparatus. The processing module includes a processor configured to generate an orientation distribution of the fibers in the mold cavity based on a molding condition for the molding machine, wherein the orientation distribution is generated taking into consideration a combined effect of a molding pressure and a shear rate on a zero-shear-rate viscosity of the composite molding material. The controller is configured to control the molding machine to perform an actual molding with the molding condition for injecting the composite molding resin into at least a portion of the mold cavity.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• G06F 17/50 - Computer-aided design
• B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

Abstract

The present disclosure provides a molding system for preparing a fiber-reinforced thermoplastic composite article. The molding system includes: a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a composite molding material including a polymeric resin and a plurality of fibers; a processing module configured to generate an anisotropic stress distribution of the composite molding material in the mold cavity based on a molding condition for the molding machine; and a controller coupled to the processing module and configured to control the molding machine with the molding condition to perform an actual molding process for preparing the fiber-reinforced thermoplastic composite article. The anisotropic stress distribution of the composite molding resin is generated based in part on consideration of an integral effect of an elongational viscosity and a shear viscosity of the composite molding material.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• B29K 101/12 - Thermoplastic materials

Abstract

The present disclosure provides a method for operating a molding system. The molding system includes a molding machine and a mold disposed on the molding machine, wherein the mold has a mold cavity for being filled with a molding material from the molding machine. The method comprises a step of obtaining a predetermined state waveform expressing a predetermined volumetric variation of the molding material. Next, the method further comprises obtaining a measured pressure and a measured temperature of the molding material in the mold cavity while performing a molding process for filling the molding material into the mold cavity. Next, the method includes obtaining a detected volumetric property of the molding material corresponding to the measured pressure and the measured temperature. Subsequently, the method comprises displaying the detected volumetric property of the molding material with the predetermined state waveform.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/78 - Measuring, controlling or regulating of temperature

Abstract

The present disclosure provides a method for setting up a molding system, wherein the molding system includes a molding machine and a mold disposed on the molding machine, and the mold has a mold cavity to be filled with a molding resin from the molding machine. The method includes generating first and second state waveforms using a predetermined packing pressure profile; obtaining an updated packing pressure profile based on the first and the second state waveforms; and setting up the molding machine based on the updated packing pressure profile to perform an actual molding process to prepare the molding product. The first and the second state waveforms express a relationship between an in-mold pressure and an in-mold temperature at different sensing sites of the molding resin.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material

Abstract

A measuring apparatus includes a base and a testing module. The testing module is received in the base and includes a temperature-controlling bucket, a testing cylinder, and upper and lower pistons. The temperature-controlling bucket extends in a vertical direction and has a bucket wall having a bucket inner surface and a bucket outer surface opposite to the bucket inner surface. The testing cylinder extends in the vertical direction, is received in the temperature-controlling bucket, and has a cylinder wall having a cylinder inner surface and a cylinder outer surface opposite to the cylinder inner surface. The upper and lower pistons plug top and bottom ends of the testing cylinder, respectively. The upper piston has a receiving room located inside the upper piston, and has a piston temperature sensor and a piston heating wire received in the receiving room.

IPC Classes  ?

• G01N 33/44 - Resins; Plastics; Rubber; Leather
• G01N 25/00 - Investigating or analysing materials by the use of thermal means

Abstract

The present disclosure provides a molding system for preparing a fiber-reinforced thermoplastic (FRT) composite article, including a molding machine; a mold disposed on the molding machine and having a mold cavity to be filled with a composite molding resin including a polymeric material having a plurality of fibers; a processing module configured to generate an anisotropic viscosity distribution of the composite molding resin in the mold cavity based on a molding condition for the molding machine; and a controller coupled to the computing apparatus and configured to control the molding machine with the molding condition to perform an actual molding for the composite molding resin. The anisotropic viscosity distribution of the composite molding resin is generated by taking into consideration an orientation distribution of the fibers in the composite molding resin.

IPC Classes  ?

• B29C 43/58 - Measuring, controlling or regulating
• B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor

Abstract

The present disclosure provides a molding system for preparing a fiber-reinforced thermoplastic composite article. The molding system includes: a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a composite molding material including a polymeric resin and a plurality of fibers; a processing module configured to generate an anisotropic stress distribution of the composite molding material in the mold cavity based on a molding condition for the molding machine; and a controller coupled to the processing module and configured to control the molding machine with the molding condition to perform an actual molding process for preparing the fiber-reinforced thermoplastic composite article. The anisotropic stress distribution of the composite molding resin is generated based in part on consideration of an anisotropic rotational diffusion effect of the fibers in the composite molding material.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

A molding system comprises a mold, a molding machine, a computing apparatus, and a controller. The computing apparatus is programmed to perform a first simulation to generate a velocity distribution and a temperature distribution of the molding material in a first portion of a simulating domain and a second simulation to generate a melting distribution of the solid decorating film in a second portion of the simulating domain, wherein the simulating domain corresponds to the mold cavity. The first molding simulation is to performed using a molding condition of the molding machine to set a boundary condition of the first portion, and the second molding simulation is performed using the velocity distribution and the temperature distribution of the molding material to set a boundary condition of the second portion.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• B29C 45/78 - Measuring, controlling or regulating of temperature
• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• G06F 30/20 - Design optimisation, verification or simulation
• G06F 13/22 - Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling
• G06F 113/22 - Moulding

Abstract

A molding system includes a molding machine, a mold disposed on the molding machine and having a mold cavity to be filled with a molding resin from the molding machine, and a computing apparatus connected to the molding machine. The computing apparatus is configured to perform operations for setting the molding machine to prepare a molding product, wherein the operations comprise: generating a first and a second state waveforms using a setting packing pressure profile; obtaining an updated packing pressure profile based on the first and the second state waveforms; and setting the molding machine based on the updated packing pressure profile to perform an actual molding process to prepare the molding product. The first and the second state waveforms express a relationship between an in-mold pressure and an in-mold temperature at different sensing sites of the molding resin.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material

Abstract

A molding system includes a mold having a mold cavity; a molding machine configured to fill the mold cavity with a composite molding resin including a polymeric material having a plurality of fibers; a computing apparatus connected to the molding machine; and a controller connected to the computing apparatus. The computing apparatus includes a processor configured to generate a previous orientation distribution of the fibers in the mold cavity based on a molding condition for the molding machine, a rotary diffusional distribution of the fibers based on the previous orientation distribution of the fibers, and an updated orientation distribution of the fibers based on the rotary diffusional distribution of the fibers. The controller is configured to control the molding machine to perform an actual molding with the molding condition for injecting the composite molding resin into at least a portion of the mold cavity.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

The present disclosure provides a method for preparing an injection-molded fiber-reinforced composite article using a molding machine controlled by a controlling module connected to the molding machine. The method performs a molding simulation executed on the controlling module to generate a shear rate distribution of the composite molding resin in a simulating domain. Subsequently, the method generates an orientation distribution of the fibers in the composite molding resin executed on the controlling module by taking into consideration an effect of the shear rate on an inter-fiber interaction and/or an effect of the shear rate on reducing a response rate of the fibers. A controller then controls the molding machine with the molding condition to perform an actual molding for injecting the composite molding resin into at least a portion of the mold cavity.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• G06F 17/50 - Computer-aided design
• B29K 309/08 - Glass
• B29K 307/04 - Carbon
• B29K 101/12 - Thermoplastic materials

Abstract

A method for preparing a fiber-reinforced composite article initially performs a trial molding by a molding machine to prepare a trial composite article of a composite molding material including a polymeric material having a plurality of fibers, wherein the trial composite article has a trial fiber orientation distribution. The method further generates a predicted fiber orientation distribution fitting with the trial fiber orientation distribution, wherein the predicted fiber orientation distribution is generated by performing a first molding simulation for the trial composite article by using physical rheology parameters and physical fiber orientation parameters. The method further performs a second molding simulation for a real composite article by using the physical rheology parameters and the physical fiber orientation parameters to obtain molding conditions for the molding machine, and performs a real molding process by the molding machine by using the molding conditions to prepare the real composite article.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
• B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
• B29K 105/14 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles oriented

Abstract

A method for operating a molding machine includes steps of specifying a simulating domain corresponding to a genuine domain in a mold disposed on the molding machine; performing a virtual molding by using an initial packing pressure profile to generate an initial state waveform expressing a relationship between an in-mold pressure and an in-mold temperature of the molding resin; obtaining an updated packing pressure profile for applying a molding pressure to at least a portion of the genuine domain while taking into consideration the initial state waveform; repeating the virtual molding while taking into consideration the updated packing pressure profile to generate an updated state waveform of the molding resin; and setting the molding machine taking into consideration the updated packing pressure profile to perform an actual molding by applying an actual molding pressure to the at least a portion of the genuine domain to prepare the molding product.

IPC Classes  ?

• B29C 45/77 - Measuring, controlling or regulating of velocity or pressure of moulding material
• G05B 19/401 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/78 - Measuring, controlling or regulating of temperature
• B29C 33/38 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor characterised by the material or the manufacturing process
• G06F 17/50 - Computer-aided design

Abstract

A method for operating a molding machine includes specifying a simulating domain corresponding to a genuine domain in a mold disposed on the molding machine. The method proceeds to perform a virtual molding by using a setting packing pressure profile to generate a simulated state waveform, generating a designed state waveform including an isobaric phase and an isochoric phase while taking into consideration the simulated state waveform, and obtaining an updated packing pressure profile for applying a molding pressure to a portion of the genuine domain while taking into consideration a difference between the simulated state waveform and the designed state waveform. Subsequently, the method proceeds to set the molding machine while taking into consideration the updated packing pressure profile to perform an actual molding by applying an actual molding pressure to the at least a portion of the genuine domain to prepare the molding product.

IPC Classes  ?

• G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
• G05B 17/02 - Systems involving the use of models or simulators of said systems electric
• G05B 19/4097 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
• B29C 45/76 - Measuring, controlling or regulating

Abstract

A molding method includes the steps of specifying a simulating domain having a resin part and a mold part, wherein the simulating domain corresponds to a genuine domain on a molding machine; setting an initial resin temperature of the resin part and an initial mold temperature of the mold part; performing a transient state analysis to calculate a plurality of temperature distributions at different times between the resin part and the mold part; calculating at least one heat transfer coefficient between the resin part and the mold part taking into consideration the plurality of temperature distributions at different times; simulating the molding process of a molding resin that is injected into the simulating domain by using the at least one heat transfer coefficient to generate a plurality of molding conditions; and performing the molding process by using the plurality of molding conditions to the genuine domain on the molding machine.

IPC Classes  ?

• B29C 45/78 - Measuring, controlling or regulating of temperature
• G05B 17/02 - Systems involving the use of models or simulators of said systems electric

Abstract

A computer-implemented simulation method for use in a molding process comprises steps of specifying a simulating domain corresponding to a genuine domain in a mold disposed on a molding machine, wherein the genuine domain has a mold cavity to be filled with a fluid having fibers from the molding machine in order to prepare a molding product; performing a virtual molding to generate a shear rate distribution of the fluid having the fibers in the simulating domain while using a molding condition for the molding machine; and calculating an orientation distribution of the fibers by taking into consideration an anisotropic rotary diffusion effect of the fibers and the shear rate distribution, wherein the anisotropic rotary diffusion effect is determined by taking into consideration a square of a rate-of-deformation tensor.

IPC Classes  ?

• B29C 39/00 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
• B29C 33/38 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor characterised by the material or the manufacturing process
• G05B 19/4069 - Simulating machining process on screen
• G06F 17/50 - Computer-aided design

Abstract

A computer-implemented method for use in a molding process by a computer processor includes specifying a simulating domain having a cavity part and a runner part; setting a filling condition of the cavity part without taking into consideration the runner part, wherein the filling condition includes gate pressures and filling rates of the cavities of the cavity part; and performing a steady state analysis to calculate flow conditions of a plurality of runner designs for the runner part by taking into consideration the filling condition of the cavity part, wherein the flow conditions include flow rates of a molding material in the runners of the runner part.

IPC Classes  ?

• G06G 7/50 - Analogue computers for specific processes, systems, or devices, e.g. simulators for distribution networks, e.g. for fluids
• G06F 17/50 - Computer-aided design

Abstract

A computer-implemented simulation method for use in molding process by a computer processor includes specifying a simulating domain having a mold cavity configured to connect a tube of a molding machine, creating a mesh by dividing at least part of the simulating domain, generating at least one flow parameter of a molding material in the tube, specifying boundary conditions of the mesh by taking into consideration the at least one flow parameter of the molding material, and simulating a molding process of the molding material that is injected into the mold cavity by using the boundary conditions to generate a plurality of molding conditions.

IPC Classes  ?

• G06G 7/50 - Analogue computers for specific processes, systems, or devices, e.g. simulators for distribution networks, e.g. for fluids
• B29C 45/26 - Moulds
• G06F 17/50 - Computer-aided design
• B29C 45/76 - Measuring, controlling or regulating
• B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof

Abstract

A computer-implemented method and non-transitory computer medium for calculating a shrinkage of a molding product comprises a step of using a computer processor to calculate a molding pressure of a molding fluid in a molding cavity by taking into consideration an increase of a shear viscosity of the molding fluid by a decrease of a shear rate, and a step of calculating the shrinkage of the molding products by taking into consideration a variation of a specific volume of the molding fluid as the molding pressure and a molding temperature decrease.

IPC Classes  ?

• B29C 45/76 - Measuring, controlling or regulating
• G06F 17/50 - Computer-aided design

Abstract

One aspect of the present invention provides a method for determining orientation of fibers in a fluid having polymer chains, characterized in that the determining of the orientation of the fibers is performed by taking into consideration an interaction between the fibers and the fluid, wherein the interaction between the fibers and the fluid comprises changes in configuration of the polymer chain to cause the entanglement or adsorption between the fibers and the polymer chains. Another aspect of the present invention provides a method for determining orientation of fibers in a fluid having polymer chains, the fibers in the fluid including a transitional movement and a rotatory movement, the method being characterized in that the determining of the orientation of the fibers is performed by taking into consideration a steric barrier effect on a rotary movement of the fibers.

IPC Classes  ?

• G01C 9/00 - Measuring inclination, e.g. by clinometers, by levels
• G01N 11/00 - Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties
• G06G 7/50 - Analogue computers for specific processes, systems, or devices, e.g. simulators for distribution networks, e.g. for fluids