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本文重点论述了药包焊基本过程的理论,药粉配方的规律性以及焊接截面小于35毫米~2铝线的可能性和经验。填扑了国内外在这方面的空白,扩大了药包焊的应用范围,并完满地解决了农用地下多芯铝电缆敷设中的技术关键。第一批接头正常运行迄今已14年,质量稳定可靠。由于采用新的配方和操作方法,接头强度已提高到与基本铝线等强度,大大超过国内外只有50%左右的强度指标。已能焊接最小截面2毫米~2、大至1000毫米~2。的单股、多股、分支等铝线,并可直接熔钎焊铝与铜。对野外、地下、高空施工、维修和战备具有重要意义。
This article focuses on the theory of the basic process of the drug welding, the regularity of the powder formula and the possibility and experience of the welding cross-section less than 35 mm ~ 2 aluminum wire. Filled the gaps at home and abroad in this area, expanding the scope of the application of the package welding, and fully solve the technical key to the laying of agricultural underground multi-core aluminum cable. The first batch of normal operation so far has been 14 years, the quality is stable and reliable. Due to the adoption of new formulations and operating methods, the strength of the joint has been increased to the strength of the basic aluminum wire and much more than the strength index of only about 50% at home and abroad. Has been able to weld the smallest cross-section 2 mm ~ 2, up to 1000 mm ~ 2. Of the single-unit, multi-unit, branch and other aluminum, and direct brazing welding aluminum and copper. On the wild, underground, high-altitude construction, maintenance and combat readiness is of great significance.