我厂原生产QY12—20×4000A型剪板机。根据用户的需要,我们参考了一些国内外同类型产品的先进经验,经过半年多的努力,于一九七六年年底自行设计、试制成功QYl2—20×3200型剪板机,为我国冲剪行业提供了一种新产品(见封二④)。该产品可广泛地用于船泊、重型机械制造等部门。 1.主要技术参数可剪最大板厚(σ=50公斤/厘米～2)20毫米可剪最大板宽 3200毫米喉口深度 300毫米剪切角 2°30′后挡料距离 0～850毫米 I plant the original production QY12-20 × 4000A-type shears. According to the needs of users, we refer to the advanced experience of some domestic and foreign products of the same type. After more than six months of hard work, we designed and manufactured QYl2-20 × 3200-type shearing machine by the end of 1976, Industry provides a new product (see cover two ④). The product can be widely used in ship mooring, heavy machinery manufacturing and other departments. 1. The main technical parameters can be cut The maximum thickness (σ = 50 kg / cm ~ 2) 20 mm Can cut the maximum width of 3200 mm Throat depth 300 mm Shear angle 2 ° 30 ’Back stop distance 0 to 850 mm