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我国从1955年起,开始采用电弧焊接法制造大型高炉炉壳。鞍钢九号高炉就是第一座采用焊接炉壳的高炉。炉壳制作的第一道工序是画线。当时,领导上把这项工作交给了我们小组。在这之前,画线工序主要采用地板放样三角作图法(俗称盘线法)展开,再用样板号料的方法下料。这种方法有许多缺点,如操作复杂、效率低、耗用工时多、需要大量的白铁皮等。如果仍然采用这个老办法,至少需要二个月到
In 1955, China began to use electric arc welding to manufacture large blast furnace shells. Anshan Iron and Steel No. 9 blast furnace is the first blast furnace with a welded furnace shell. The first step in furnace shell production is to draw lines. At that time, the leadership gave this work to our group. Before this, the line drawing process was mainly carried out using the floor drawing triangle drawing method (commonly known as the coiling line method), and then used the model number material method for material feeding. This method has many shortcomings, such as complex operation, low efficiency, many man-hours, and large amounts of tin. If you still use this old method, it will take at least two months to