在实际工作中,常会遇到用型材弯制多种曲线和法兰。如象壁厚δ2mm以下的薄壁管道多数就用于角钢法兰。但用角钢弯制法兰时,往往在弯到一半时才发现角钢选得太大或太小,这样会造成很大的浪费。多数工人都是凭经验判断选材的大小,这样做很不科学。其实,我们可以通过简单的计算和 In practice, often encountered with the profile bending a variety of curves and flanges. If the wall thickness δ2mm below the majority of thin-walled pipes for angle steel flange. However, when bending the flange with an angle steel, it is often found that when the angle is halfway, the angle steel is too large or too small to be chosen. This will cause a great waste. Most workers rely on experience to determine the size of the material, so it is unscientific. In fact, we can calculate by simple calculation