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一九七一年四月在株州召开了焊接材料行业会议。会议认为,为了适应当前工农业生产跃进的新形势,发展高效率焊条是十分必要的。为此,我们对高效率铁粉焊条进行了初步试验。经过多次配方调整和理化性能试验,试制了以钛铁矿为主的两种钛钙型铁粉焊条,其工艺性能和机械性能较好。结422铁薄焊条适用于全位置焊接,结422铁粉厚皮焊条适用于平焊和平角焊。
In April 1947 in Zhuzhou held a welding material industry conference. The meeting held: In order to adapt to the current new situation of industrial and agricultural production, it is necessary to develop high-efficiency welding electrodes. To this end, we conducted a preliminary test of high efficiency iron powder electrode. After repeated formulation adjustments and physical and chemical properties tests, trial production of two ilmenite-based iron-titanium iron powder electrode, its process performance and mechanical properties are better. Results 422 iron thin electrode for all-position welding, knot 422 iron thick electrode suitable for welding and flat-angle welding.