PLASMA GIKEN CO., LTD. Patent applications |
Patent application number | Title | Published |
20130327856 | 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. | 12-12-2013 |
20100251962 | 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. | 10-07-2010 |