The invention relates to a dilution apparatus (1) for diluting at least one powder (P) in at least one liquid (L), the dilution apparatus (1) comprising a tank (10) configured to receive a solution (S), a recirculation circuit (20), at least one filtration screen (3) positioned in the tank (10) so as to define a lower enclosure below the filtration screen (3) and an upper enclosure above the filtration screen (3), the recirculation circuit (20) being configured to collect, via the recirculation inlet (21), a flow of solution in the lower enclosure, and also to inject, via the recirculation outlet (22), the flow of solution into the upper enclosure so as to improve the dilution.
B01F 25/21 - Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
B01F 25/50 - Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
The invention relates to a method and a facility for recycling a mixture comprising at least one fluorinated fluid, the mixture comprising one or more fluorinated chemical components and one or more contaminants selected from among one or more hydrocarbons and/or one or more fluorinated contaminants, including a step of double membrane filtration for reducing the contaminant content of the mixture.
Systems and methods for remote monitoring of refrigeration systems to detect leaks of refrigerant include a local monitoring station, having at least one sensor configured to be in communication with a refrigeration system having refrigerant, the sensor measuring at least one parameter of the refrigeration system. At least one server is in communication with the local monitoring station and accessible by at least one user communication device. Software residing at least partially on the local monitoring station and/or the server: records data from the sensor periodically to generate recorded sensor data; collects the recorded sensor data over time to generate collected sensor data; determines via at least one algorithm, using the collected sensor data, whether a refrigerant leak is occurring in the refrigeration system being monitored to thereby generate a state of the refrigeration system; and communicates the state of the refrigeration system to the at least one server.
The invention relates to a composition intended for the cleaning of contaminants and flux residues on electronic assemblies, particularly solder cream residue. Said composition comprises: - from 20% to 99.5% by weight of a main solvent consisting of at least a C6-C15 glycol ether, and optionally a secondary solvent, - from 0.5% to 20% by weight of a selected acid additive which is a phosphoric acid ester. The invention also relates to a defluxing product incorporating said composition, as well as to the defluxing methods using these products.
A system (1) for measuring oil viscosity, the system being configured to be mounted in a circuit for lubricating a cooling system, the measuring system (1) comprising: • a main body (2) comprising a vertical portion (20) mounted between the inlet port (23) and the outlet port (24), • a metal ball (3) capable of moving in the vertical portion (20) under the effect of gravity, • a detection device configured to measure the time it takes for the metal ball (3) to fall between a high point and low point of the vertical portion (20), • a computing device configured to determine the viscosity of the oil based on the measured fall time, • the measuring system (1) comprising a drive device (4) configured to magnetically drive the metal ball (3) in the vertical portion (20) from the low point to the high point.
G01N 11/12 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by moving a body within the material by measuring rising or falling speed of the bodyInvestigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by moving a body within the material by measuring penetration of wedged gauges
Disclosed is a method for separating a plurality of chemical components (Cx) from a chemical mixture (M1-M4) comprising a plurality of fluorinated fluids, the method comprising: • a step of identifying (E2), in the chemical mixture (M1-M4), at least two sub-mixtures (N1-N5), each complex sub-mixture (N1-N5) being associated either with a first group (G1) for secondary pressure swing distillation or with a second group (G2) for secondary extractive distillation, • a step of primary distillation (E3), using a main column (1), so as to separate each identified sub-mixture (N1-N5), • a secondary distillation step (E4), using the same advanced unit of two auxiliary columns, for distilling each complex sub-mixture (N1-N5), the complex sub-mixtures (N1-N5) of the first group (G1) being separated by the pressure swing distillation method and the complex sub-mixtures (N1-N5) of the second group (G2) being separated by the extractive distillation method.
The invention relates to a composite alloy for lead-free solder, having a composition comprising 92.4% - 98.4% by weight of bismuth (Bi), 1.5% - 7% by weight of silver (Ag) and 0.1% - 0.6% by weight of nickel (Ni). Such an alloy has good mechanical and electrical properties as well as good wetting properties.
The invention relates to a lead-free solder alloy having a composition comprising: - 86% - 94% by weight of tin (Sn), - 5% - 10% by weight of antimony (Sb) and - 0.5% - 4% by weight of copper (Cu).
A method for distributing a mixture (M) capable of providing electrical insulation and/or stopping an electric arc in a chamber (10) of a high or medium voltage electrical apparatus (1), the mixture (M) comprising at least one organic, electrically-isolating, chemical product (Gl) and at least one diluting product (G2), the mixture (M) being stored in a container (2), the method comprising a step of cooling said mixture (M) to a temperature less than -10 °C, a step of draining the container (2) containing the cooled mixture (M) and a step of distributing the mixture (M) in the chamber (10) of the high or medium voltage electrical apparatus (1).
The invention concerns a concentrated coolant intended to be added to a heat transfer liquid to lower the freezing temperature of same, said coolant comprising a C2-C6 glycol, water in an amount of less than 10% by mass and corrosion inhibitors, said corrosion inhibitors being a mixture of at least a C7-C11 aliphatic monocarboxylic acid and a C4-C15 aliphatic dicarboxylic acid, characterised in that it comprises an amount of said C4-C15 aliphatic dicarboxylic acid of between 0.1 and 1% and an amount of said C7-C11 aliphatic monocarboxylic acid greater than or equal to 0.5% and less than 4%, the ratio between said C7-C11 aliphatic monocarboxylic acid and said C4-C15 aliphatic dicarboxylic acid being between 3 and 7.
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