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在轧制直径219～325毫米、壁厚8～18毫米钢管时具有很大的节约金属的潜力。潜力之一就是在轧制钢管时缩小公差范围。然而,由于钢管负公差轧制限制了其横向壁厚偏差,此偏差主要根据钢锭加热的温度和均匀程度而变化。为了轧制负公差范围内的钢管而设计了一种控制精度的方法。这种方法可根据横向壁厚不均、钢锭重量和钢管品种正确有效地确定钢锭轧成的钢管长度。按这
In the rolling diameter of 219 ~ 325 mm, wall thickness 8 ~ 18 mm steel has great potential for metal conservation. One of the potential is to narrow the tolerance range when rolling steel pipe. However, due to the negative tolerance of steel rolling limit its horizontal wall thickness deviation, the deviation mainly depends on the ingot heating temperature and uniformity of the change. A method of controlling the accuracy is designed for the rolling of tubes in the negative tolerance range. This method can be based on the uneven thickness of the transverse wall, steel ingot weight and steel pipe types to accurately and effectively determine the length of the steel ingot into the tube. Press this