在研究金属镀层的性质以前,我们应当首先了解金属喷镀的原理。金属喷镀的原理是:将由各种金属制成的金属丝送入特制的喷镀器中,在喷镀器中被氧炔火焰或电弧所产生的高温所熔化。随后由四周出来的高压空气(5至6气压)将熔化的金属喷成极细的颗粒(颗粒断面的直径约为0.01至0.015公厘),并促喷镀器内以每秒140至300公尺的速度喷射在已经经过表面准备的零件表面上。 Before studying the properties of metal coatings, we should first understand the principle of metal plating. The principle of metal spraying is that metal wires made of various metals are fed into a special spray chamber which is melted by the high temperature generated by the flame or arc of an oxy-acetylene in the chamber. The molten metal is subsequently sprayed into very fine particles (about 0.01 to 0.015 mm in diameter in cross section) by high pressure air (5 to 6 atmospheres) from the periphery and 140 to 300 cm per second in the chamber The ruler’s speed is sprayed on the part surface that has been surface prepared.