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闪光对焊的原理是利用对焊机使两端金属接触,通过低电压的强电流,待金属被加热到一定温度变软后,进行轴向加压顶锻,形成对焊接头。钢筋闪光对焊是将两根钢筋放成对接形式,利用焊接电流通过两根钢筋接触点产生的电阻热,使接触点金属熔化,产生强烈飞溅,形成闪光,迅速施加顶锻力完成的一种压焊方法。
The principle of flash butt welding is to use the butt welder to make the metal contact at both ends. After the metal is heated to a certain temperature and softened, the steel sheet is subjected to axial forging and forging to form a butt welded joint. Steel flash butt welding is the two bars into a docking form, the use of welding current through the two points of contact resistance of steel heat, the contact point of metal melting, resulting in strong splash, the formation of flash, rapid application of upsetting force to complete a Pressure welding method.