我厂盐浴炉的主电极和启动电极都是用A3材料制做的。以前这两者连接是采用楔形铁敲紧夹在一起,即主电极上焊上一块凹形铁,放进启动电极后,用楔形铁敲紧导电。由于凹形铁焊在主电极的上面,在长时间受熔盐蒸气和盐沫飞溅,表面就锈蚀了。使凹形铁的部分接触面形成了许多麻坑,造成接触不良,操作时导至打火,严重时连接处会发红甚至烧损,因此凹形铁和楔形铁要 The main electrode and the starting electrode of our salt bath furnace are all made of A3 material. Previously the connection between the two is the use of wedge iron clamp together, that is, the main electrode welding a concave iron, into the starting electrode, with wedge iron tapping conductive. Since the concave iron is welded on the main electrode, the surface is corroded by molten salt vapor and salt splashing for a long time. So that part of the contact surface of the concave iron to form a number of Ma Hang, resulting in poor contact, the operation led to sparks, the junction will be severe redness or even burning, so the concave iron and wedge iron to