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印度铝热焊公司(The India Thermit co LTD)和瑞士钢轨焊接公司(Rail-wel Inc.)先后于1981年10月及12月与我部及有关单位在京举行了关于钢轨铝热焊接的技术座谈。印度铝热焊公司是西德电气—铝热公司(Elektro-Thermit GMBH)的子公司,在技术上接受西德电气—铝热公司的指导,在座谈中印方介绍的四种钢轨铝热焊接法均为西德所研究并应用,即焊筋焊接法(简称S_mW法)、无焊筋焊接法(简称S_oW法)、无预热焊接法(S_oV法)和短时预热焊接法(S_kV法)。此外印方还介绍了焊接质量的控制,其中包括组织、质量管理、质量控制及验收方法等,由于采用了较严格的质量管理方法,印度铝热焊接头的破损率为1/12,000。
The India Thermit co LTD and Rail-wel Inc. successively held technical seminars on rail aluminum heat welding in Beijing in October and December 1981 jointly with our ministries and agencies. . India Aluminum Welding Company, a subsidiary of Elektro-Thermit GMBH, was technically instructed by West German-Aluminum Company. During the seminar, the four Indian railways introduced aluminum thermal welding The methods are all researched and applied by West Germany, namely welding bar welding method (S_mW method), welding without bar welding method (S_oW method), without preheating welding method (S_oV method) and short-time preheating welding method (S_kV law). In addition, India also introduced the control of welding quality, including organization, quality management, quality control and inspection methods. Due to the stricter quality management method, India’s aluminum welded joints have a damage rate of 1 / 12,000.