冷弯方矩形管成型方式的选择

Selection Example on Forming Mode of Cold-bending Square/Rectangular Pipe

方矩形管辊式冷弯成型有"先圆后方"和"直接成方"两种成型方式。以生产100mm×250mm×4mm规格的矩形管为例,对两种成型工艺所需带钢宽度进行了比较,认为采用"直接成方"工艺可节省原料。对水平配辊和竖直配辊方式进行分析,得出了采用竖直配辊可以减少空弯,使角部变形充分的结论。

Roll cold-bending forming of square/rectangular pipe have two forming methods,Namely,first round and square as well as directly to square taking rectangular pipe of 100 mm× 250 mm ×4 mm for instance,this article makes comparison of strip width required by the two forming methods,and put forward that the directly to square process can save raw material,and analyzes horizontal and vertical roller arranging method,and also reaches conclusion that vertical roller arranging can reduce hollow bending and have adequate deformation in corner.