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哈尔滨轧钢厂在技术改造中自行设计制造了500tf冷剪机组,以便为6.5mm盘圆的半连续线材车间供料。该机组投产使用后,取得了很大的经济效益。与火焰切割相比,每年节省的氧气、电石以及减少的钢耗等约折合人民币49万元。而且还改善了切口断面的质量,显著提高了线材的成材率,大约可提高3～5％。本文具体阐述了剪断机的结构型式、动作原理及控制机构的改进、力能参数计算及电动机功率的验算以及使用中出现的问题等。本文对中小轧钢企业的技术改造,有一定的参考价值。
Harbin Iron and Steel Mill in the technological transformation of its own design and manufacture of 500tf cold shear unit, in order to 6.5mm round semi-continuous wire workshop supply. The unit put into operation, made great economic benefits. Compared with flame cutting, the annual savings of oxygen, calcium carbide and reduced steel consumption equivalent to about 490,000 yuan. But also improve the quality of the incision section, significantly improve the wire rod forming rate, can be increased by about 3 to 5%. This paper elaborates the structure type of shear, the principle of operation and the improvement of control mechanism, the calculation of force and energy parameters, the checking of motor power and the problems in use. This article has a certain reference value to the technological transformation of small and medium-sized steel rolling enterprises.