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我厂为了改变轴承生产与形势发展要求不相适应的状况,迅速把轴承生产搞上去,从1971年下半年开始,在厂党总支和革委会的领导和支持下,着手对轴承内圈采用冷挤压的新工艺加工。经过近一年时间的试验和试生产,到1972年下半年,几个型号的单列向心球轴承的内圈已采用单工位模具正式投入生产。1973年为了进一步提高冷挤压新工艺的生产效率和充分利用现有的机
I plant in order to change the bearing production and the situation does not meet the requirements of the development situation, the rapid production of bearing up, from the second half of 1971, factory party branch and the Revolutionary Committee’s leadership and support, proceed to the bearing inner ring Cold extrusion process using the new technology. After nearly a year of testing and trial production, to the second half of 1972, several models of single row radial ball bearings have been used in the inner ring has been officially put into production single-station mold. In 1973 in order to further improve the cold extrusion process of new production efficiency and make full use of existing machines