唐钢第一轧钢厂为提高产量和质量,急需改造160t剪断机。1987年2月我们承接了这项科研课题。唐钢要求在常温下剪断20MnSiφ25mm螺纹钢的剪断能力由8根提高到12根,力争达到14根,并且不改变现行剪切程序,不改变原设备结构,不在原结构上有较大的加工,在不停产条件下使剪断能力增加到200t。经过现场调查研究,我们提出了双斜面上剪刃方案,经反复验算确定了斜剪刃的各个参数。实测结果证明这一方案是正确可行的。 Tangshan Iron and Steel First Rolling Mill to improve production and quality, urgent need to transform 160t shear machine. In February 1987 we undertook this research topic. Tangshan Iron and Steel requirements cut 20MnSiφ25mm at room temperature, the shear capacity of rebar from 8 to 12, and strive to reach 14, and does not change the current cutting program, does not change the original equipment structure, the original structure is not greater processing, Shear capacity is increased to 200t without stopping production. After field investigation, we proposed a double-bevel on the cutting edge program, after repeated checking to determine the parameters of oblique cutting edge. The results show that this program is correct and feasible.