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爆炸喷涂属于热喷涂。这种方法是将氧、乙炔送入特制混合室内,利用它们在点燃爆炸时产生的热能及动能(瞬时温度为3300℃,燃气速度达4000米/秒),将同时输入的粉末加热到熔融或塑性状态,用700米/秒的速度喷射到零件的表面上,以形成涂层的新工艺方法。爆炸涂层具有以下特点:1.结合强度高(可达1000公斤/厘米~2以上);2.涂层表面硬度高,在碳化钨+钴涂层中,HV(负荷为300克)为1300;3.涂层气孔率低(一般情况下低
Explosion spraying is thermal spraying. In this method, oxygen and acetylene are fed into a special mixing chamber. The heat and kinetic energy (instantaneous temperature of 3300 ℃ and gas velocity of 4000 m / s) generated when they ignite the explosion are used to heat the simultaneously input powder to melt or Plastic state, with a speed of 700 m / s sprayed onto the surface of the parts, to form a new coating process method. Explosion coating has the following characteristics: 1. High bonding strength (up to 1000 kg / cm ~ 2); 2. Coating surface hardness is high, in the tungsten carbide + cobalt coating, HV (load 300 grams) ; 3 coating porosity is low (under normal circumstances