喷焊工艺应用于屏蔽电机电泵的零部件表面加工，是实际生产的需要。喷焊是以氧──乙炔火焰为热源，自熔性合金粉末作为喷焊填充材料，合金粉末是利用射吸原理输送到火焰区，火焰区将合金粉末加热至熔化或接近熔化状态，并以相当高的喷射速度喷敷在母材表面上，形成喷涂层的。喷焊后零件的表面硬度，耐磨性都得到提高，满足设计和使用要求。科学的选用喷焊工艺可节省原材料，减少机加工工序；提高生产效率；降低产品成本。 Spray welding process used in the shield motor pump parts surface processing, is the actual production needs. Spray welding is based on oxygen ─ ─ acetylene flame as a heat source, self-fluxing alloy powder as a filler material, the alloy powder is transported to the flame zone by the principle of suction, the flame zone will be heated to melt the alloy powder or near-melting state and A relatively high jet velocity is sprayed onto the surface of the base metal to form a spray coating. Spray welding parts surface hardness, wear resistance have been increased to meet the design and use requirements. Scientific selection of welding process can save raw materials, reduce machining processes; improve production efficiency and reduce product costs.