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22 什么是氧乙炔粉末喷涂和喷焊 ?有何特点与用途 ?喷涂和喷焊属热喷涂技术范畴 ,旨在对材料表面材料 (如耐磨损性 ,耐高温隔热性等 )进行强化和再生 ,起保护作用 ,并对磨损或加工超差引起的零件进行尺寸恢复。氧乙炔火焰金属粉末喷涂工艺是将金属粉末通过氧乙炔火焰加热至熔?
22 What is oxyacetylene powder coating and spray welding? What are the characteristics and uses? Spray coating and spray welding are thermal spray technology to improve the surface material (such as abrasion resistance, high temperature insulation, etc.) and Regeneration, play a protective role, and wear or processing tolerance caused by parts of the size recovery. Oxyacetylene flame metal powder coating process is the metal powder heated by oxyacetylene flame to melt?