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我車間全体职工在党的正确領导下,經过六十七次试驗,終于用冲天炉炉渣制造出了高强度的优质焊条。用炉渣制造焊条不但可以节省貴重的鉄合金和矿石材料,而且是廢物利用,就地取材,在焊条制造上是一个創举,为今后焊条制造开辟了一条新的途徑。开始試制时,我們先对黑色玻璃状的冲天炉渣进行了化学分析,其成分如下:37.10％SiO_2;30.40％CaO;18.94％Al_2O_3;0.54％Fe_2O_3;7.89％FeO;3.86％
Under the correct leadership of the party, all the workers in our workshop, after 67 trials, finally made the high-strength high-quality welding rod with cupola slag. The use of slag to make electrodes not only saves valuable alloy and ore materials, but also makes use of waste materials and local materials. It is a pioneering work in electrode manufacturing and opens up a new way for electrode manufacturing in the future. At the beginning of trial production, we first conducted a chemical analysis of the black glassy cupola slag with the following composition: 37.10% SiO 2, 30.40% CaO, 18.94% Al 2 O 3, 0.54% Fe 2 O 3, 7.89% FeO, 3.86%