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气门是用耐热高合金钢制造的,同时利用各种方法和各种堆焊材料对其工作表面堆焊耐热耐磨合金。苏联伏尔加汽车厂用冷凝法在自动线上实现了内燃机排气门的堆焊。 以伊·奥·巴托恩（E·O·ЛamoH）命名的电焊研究所研究出的堆焊方法的实质是:利用感应加热熔化合金圈,并预热气门毛坯到一定温度,以保证工件同合金随着熔焊层的定向结晶作用而焊成一体。熔焊层的结晶靠加热的同时在工件下面进行较强的冷却（见图1）。 气门的主体金属是含氮钢ЭП303（21—4N）。堆焊用以Ni—Cr—B—Si为基体的ЭП616A（NiCr26Si2B2）合金圈,该圈是用砂型铸造的方法而得到的。
Valve is made of heat-resistant high alloy steel, while using a variety of methods and a variety of surfacing materials on the work surface surfacing heat-resistant wear-resistant alloy. Soviet Union Volga Automobile Factory with condensing method in the automatic online engine exhaust valve surfacing. The essence of the surfacing method developed by the Institute of Welding Research named after EA O’Brien is to melt the alloy ring by induction heating and preheat the valve blank to a certain temperature to ensure that the workpiece The alloy melts into one body with the directional crystallization of the weld layer. The melting layer of the crystal by heating at the same time under the strong cooling of the workpiece (see Figure 1). The main valve metal is nitrogen steel ЭП303 (21-4N). Surfacing with ЭП616A (NiCr26Si2B2) alloy ring based on Ni-Cr-B-Si, the ring is obtained by the sand casting method.