一、角钢机械弯曲的尝试厦门化工机械厂曾在弯法兰机上进行角钢弯曲成型,见图1。但是,弯曲后的角钢了严重的扭转、翘曲,呈“麻花”状,根本不能使用。显然,这是由于角钢截面的几何不对称引起的。因此,将两条角钢点焊在一起,形成对称的“T”形截面(见图 First, the angle steel mechanical bending attempt Xiamen Chemical Machinery Factory had bending steel angle bending machine, shown in Figure 1. However, the bent angle steel has been severely twisted and warped, showing a “tangle” shape and cannot be used at all. Obviously, this is due to the geometric asymmetry of the angle section. Therefore, the two angles are spot welded together to form a symmetrical “T” shaped section (see Figure