论文部分内容阅读
一、我国模具钢生产状况随着工业的迅速发展,我国模具和模具钢的耗量日益增大,至1985年统计,全国模具钢产量约为60000吨(其中冶金系统为48000吨左右,钢材为36000吨左右)。虽然产量很高,但能大批量供应的钢种不多,主要还是Cr12、CrI2MoV、3Cr2W8V、5CrMnMo和5CrNiMo等钢种,品种规格也不尽合理,95％以上是圆钢,扁钢、模板、模块等材生产很少,大大落后于一些发达国家,如日本1978年生产的模具钢品种中,圆钢为59.05％、扁钢为14.75％,板材4.89％,其
First, the production status of China’s die steel With the rapid development of industry, China’s die and die steel consumption is increasing, to 1985 statistics, the national die steel production is about 60,000 tons (of which about 48,000 tons of metallurgical systems, steel is 36,000 tons or so). Although the output is very high, the steel grades that can be supplied in large quantities are few, mainly the grades such as Cr12, CrI2MoV, 3Cr2W8V, 5CrMnMo and 5CrNiMo. The specifications of the varieties are also not entirely reasonable. Over 95% are round steel, flat steel, Modules and other materials produced very little, much lower than some developed countries, such as the Japanese mold steel varieties produced in 1978, 59.05% of round bars, 14.75% of flat steel, 4.89% of the plate, which