我厂冷铸车轮生产一度由于旧发轮供应缺乏,就用大冶新生铁代替。但是对于化学成分要求严格的冷铸车轮来说,大量用新生铁配料还是第一次,因此事先做了几批试验,试验结果相当满意。大冶新生铁的化学成分大致如下:碳4．1%,矽0．8%,锰0.8%,磷0．21%,硫0．06%。 Our factory cold cast wheel production once due to the lack of supply of the old round, we use Daye newborn iron instead. However, for the chilled wheels with strict chemical composition, it is the first time for a large quantity of fresh pig iron to be used for the preparation. Therefore, several batches of tests have been done in advance and the test results are quite satisfactory. The chemical composition of Daye fresh iron is roughly as follows: carbon 4.1%, silicon 0.8%, manganese 0.8%, phosphorus 0.21%, sulfur 0.06%.