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采用ＬＤ钢代替Ｃｒ１２ＭｏＶ钢制造了冷摆辗模具。通过真空热处理稳定了模具的强韧性，有效地克服了模具由于开裂引起的早期失效，使冷摆辗模具的使用寿命得到显著提高。
Using LD steel instead of Cr12MoV steel to create a cold swing die. Through the vacuum heat treatment, the toughness of the mold is stabilized, the early failure of the mold caused by the cracking is effectively overcome, and the service life of the cold-swinging mold is remarkably improved.