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上海第一石油机械厂的4000tf 热模锻压机是二重厂引进西德技术生产的,自1984年10月投产以来,已生产牙爪锻件十万余只。在生产过程中遇到了一个十分棘手的问题,即顶杆的使用短于模子寿命。模子寿命一般可达8000件到20000件,而顶杆寿命一般是1000件到2000件。在实际生产中就不得不频繁地调换顶杆。每调一次顶杆得化约6小时。有时候顶杆卡死在模体的导向孔中拆不出来,造成的经济损失更大。为此,我们对顶杆结构设计、材料、制造
Shanghai No. 1 Petroleum Machinery Factory 4000tf hot die forging press is the introduction of West Germany by the second plant technology production, since October 1984 put into operation, has produced more than one hundred forgings claws. In the production process has encountered a very difficult problem, the use of the mandrel is shorter than the mold life. Die life generally up to 8000 to 20000, while the mandrel life is generally 1000 to 2000 pieces. In actual production have to frequently replace the mandrel. Each tune once the ram attained about 6 hours. Sometimes the ejector stuck in the guide hole in the mold can not be demolished, resulting in greater economic losses. To this end, we design, manufacture of the plunger structure