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机械部委托湖北省机械厅于85年3月下旬在武汉召开“陶瓷型精铸大型辊锻模工艺”鉴定会。这种用于汽车前梁的大型辊锻模,直径达801毫米,呈圆弧形,包角250°。用陶瓷型精铸制造这种大型、复杂、整体模
Ministry of Machinery commissioned the Hubei Provincial Machinery Office in late March 85 in Wuhan held a “ceramic casting large roll forging process” appraisal. The large roll forging die used for the front beam of a car has a diameter of 801 mm and a circular arc with a wrap angle of 250 °. This type of large, complex, monolithic mold is made of ceramic casting