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锻造大型环件(外径和内径都很大)一般需要大行程的锤子。我们最近改进成功一种扩孔工具(也叫马架),在1.5吨汽锤上锻造各种环件,克服了锤子行程不够不能锻制大型环件的困难,而且提高了
Forging large ring (both outer diameter and inner diameter) generally require a large stroke hammer. We have recently succeeded in expanding a reaming tool (also known as a horse rack) forging rings on a 1.5-ton hammer, overcoming the difficulty of not being able to forge a large ring with a hammer stroke and increasing