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前言现在国内广泛应用电渣焊接以小拼大焊成重型设备,焊剂多采用 AH-348A。由于电渣过程与电弧过程有本质上差别,电弧焊的焊条与基本金属焊口靠电弧热量熔化,而电渣过程是靠电流通过熔渣所析出的热量来熔化金属并且没有放电现象,这就降低了反应这的温度,熔渣与金属间相互反应比电弧焊反应和缓。所以焊剂耗量少。因此对焊剂冶金方面的要求不是最主要的,主要是决定于工艺性的要求。对电渣焊焊剂的工艺性要求如下:(1)焊剂应保证在渣池很浅时间很快的建立起电渣反应而当渣池深度摆差很大时又必须保证电渣反应的高度稳定性。
Preface Now widely used in China electroslag welding welding small heavy into heavy equipment, flux and more use of AH-348A. Due to the essential difference between the electroslag process and the arc process, the arc welding electrode and the basic metal weld are melted by the arc heat, and the electroslag process melts the metal by the heat generated by the current passing through the slag and does not discharge, Reduced the reaction temperature, slag and metal interaction than the arc reaction and slow. So less flux consumption. Therefore, the requirements of the flux metallurgy is not the most important, mainly depends on the technological requirements. Electro-slag flux process requirements are as follows: (1) flux should ensure that the slag pool is very shallow time to establish a rapid electroslag reaction and when the depth of the slag pool large swing when the electroslag reaction must also be highly stable Sex.