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OXY-ACETYLENE TORCH FOR THERMAL SPRAYING OF CERAMIC POWDERS

机译:用于陶瓷粉末热喷涂的氧乙炔炬

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摘要

A major disadvantage of all HVOF processes is that the use of extremely high combustion pressures results in high drops of jet temperatures prior to impaction at the workpiece surface - perhaps more than 1,000F below the melting point of the material being used. The higher the pressure, the lower the range of materials benefitted. This becomes a serious matter where high melting-point ceramics are concerned. Speculating on the possible use of acetylene, a fuel about 1,000T hotter than other fuels (except cyanogen, a poison) a possible torch design is sketched below.
机译:所有HVOF工艺的主要缺点是,使用极高的燃烧压力会导致在撞击工件表面之前喷射温度大幅下降-可能比所用材料的熔点低1,000F。压力越高,受益材料的范围越小。在涉及高熔点陶瓷的情况下,这成为严重的问题。考虑到乙炔的使用可能性,乙炔是一种比其他燃料(氰化物,有毒物质除外)高约1,000T的燃料,下面概述了可能的焊炬设计。

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