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  • The First Pressure Test of The 45,000-ton Press Was Successful!
    Recently, the Xinxiang Yalian Heavy Industry Co., Ltd. has announced an exciting news. Their independently designed and constructed 45,000-ton multi-cylinder intelligent linkage press machine successfully completed its first pressure test, achieving the one-time formation of a super-large tonnage an Read More
  • Forging Equipment
    Mechanical equipment used for forming and separating in forging processing. Read More
  • Theoretical Basis of Cold Heading Processing Technology
    冷镦工艺由于具有高的生产率,良好的产品质量,并大大减少材料消耗,降低生产成本,改善劳动条件,因此愈来愈广泛地应用在机械制造特别是标准紧固件的生产中,其中应用多工位冷镦机生产的最有代表性的产品,是螺栓、螺钉和螺母。  1、冷镦是在常温条件下进行的。冷镦可使金属零件的机械性能得到改善。下表是冷镦螺栓和切削加工螺栓的机械强度对比:  从表中可以看出,无论是何种规格的螺栓,冷镦加工后的抗拉强度比切削加工的提高约10%左右,有的甚至可提高20%。这是因为冷镦加工产品的金属纤维不会被切断,金属内部结构被压实,以及伴随加工硬化现象的存在,所以金属机械性能得到了改善。 Read More
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