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乙炔发生器是利用电石和水的相互作用来制取乙炔的设备。由于它的构造简单,操作方便,价格便宜,因此在焊接生产中获得广泛的应用。但是由于操作的不慎和设备的故障,往往会导致回火与爆炸。回火就是焊接火焰沿焊炬倒流向乙炔发生器的过程。回火的主要原因是火焰燃烧速度大于气体流速,造成火焰的倒流。①回火爆炸的过程,就是乙炔在一定的压力和温度下,按一定的规律,由乙炔的聚
Acetylene generator is the use of calcium carbide and water to the interaction of acetylene equipment. Because of its simple structure, easy operation, low price, it is widely used in welding production. However, due to inadvertent operation and equipment failure, often lead to tempering and explosion. Tempering is the process by which the welding flame flows back to the acetylene generator along the welding torch. The main reason for tempering is the flame burning rate is greater than the gas flow rate, causing the flame back. ① tempering explosion process, acetylene is a certain pressure and temperature, according to certain rules, from the acetylene poly