A powder supply device that continuously supply a fixed amount of powder, including a powder accommodation container including a powder delivery hole in an circular outer shape bottom plate, and a disk that continuously rotates and conveys the powder by a groove facing the powder delivery hole and provided on circumference, wherein the disk is disposed to be slidably rotatable with respect to the circular outer shape bottom plate in a state in which a part of a region where the groove is located is covered with the circular outer shape bottom plate of the powder accommodation container.
G01F 11/24 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber rotates or oscillates for fluent solid material
Disclosed is a cold spray gun and a cold spray apparatus using the same capable of stably heating a raw material powder to a specific high temperature with an achievement of compactness and lightweight of the apparatus. In order to achieve the above described object, there is provided a cold spray gun configured to form a coating film by spraying a raw material powder carried on a carrier gas from a nozzle outlet by a supersonic flow together with a working gas heated to a temperature equal to or lower than a melting point or a softening point of the raw material powder, and causing the raw material powder to collide with a base material in a solid state, the cold spray gun including; a chamber containing the working gas to be delivered to the nozzle; and is characterized in that a gas heating pipe constituted from a heating resistor which causes resistance heating by being energized is arranged in the chamber, and the working gas flowing into the interior of the gas heating pipe is heated.
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
C23C 24/04 - Impact or kinetic deposition of particles
3.
Cold-spray nozzle and cold-spray device using cold-spray nozzle
An object of the present invention is to provide a cold-spray nozzle that can be continuously used for a long time without causing clogging up of the nozzle compared to a conventional case to effectively obtain a high-quality film by a cold-spray method. To achieve the object, the cold-spray nozzle that is a convergent-divergent type cold-spray nozzle comprising a convergent part, a throat part, and a divergent part sequentially arranged in this order for constituting a working gas flow path along a working gas flow direction from an inlet side to an outlet side is employed. The inner peripheral surface of the divergent part has a conical shape and at least a part of the inner peripheral surface is constituted by a glass material.
B05B 1/26 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectorsBreaking-up the discharged liquid or other fluent material by impinging jets
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B05B 1/00 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
B05B 1/02 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
C23C 24/04 - Impact or kinetic deposition of particles
4.
Nozzle for cold spray system and cold spray device using the nozzle for cold spray system
The object of the present invention is to provide a cold spray method in which spray efficiency is improved by using a device comprising a similar construction to the conventional ones with minor change in conditions. The cold spray method employs the nozzle for cold spray system which comprises a convergent shape part, a throat part and a conical divergent shape part widened forward from the throat part used for making the raw material powder introduce from an inlet of the nozzle, which is located in the convergent shape part, into and shoot as a supersonic flow by using a working gas having temperature equal to or lower than a melting point of the raw material powder from a spout provided at the tip of the divergent shape part, wherein the convergent shape part is composed of a preheating region and a convergent region.
B05B 1/24 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means incorporating means for heating the liquid or other fluent material, e.g. electrically
patents
