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我厂自72年生产高中压阀门以来,造型采用一箱多铸工艺,因此对型极的需要量越来越大。开始用木材及铝质型板。但木材来源比较困难,容易变形,影响造型质量。采用铝质型板虽然比较理想,但成本高,工作量大,时间长,生产周期长。针对上述情况,我厂利用菱苦土作型板,经过一年多来的生产实践证明,用菱苦土型板代替木材及铝质型板是完全可以的,现我厂已全部采用菱苦土型板。其制作过程如下:
Our factory since 72 years since the production of high pressure valve, the shape of a box with more casting process, so the demand for more and more type. Start with wood and aluminum plate. However, wood sources more difficult, easy to deformation, affecting the quality of modeling. Although the use of aluminum plate ideal, but the high cost, heavy workload, long time, long production cycle. In view of the above situation, I plant the use of Lingtu for the plate, after more than a year of production has proved that the use of Lingtu model instead of wood and aluminum plate is completely possible, I plant has been all the Ling Ling bitter Soil board. The production process is as follows: