茂名板材批发q235b热轧板黑铁钢板加工开平A3铁板4*1500*6000中厚板 ...

热轧板，轧件的温度高，因此变形抗力小，可以实现大的变形量。以钢板的轧制为例，一般连铸坯厚度在230mm左右，而经过粗轧和精轧，最终厚度为1~20mm。同时，由于钢板的宽厚比小，尺寸精度要求相对低，不容易出现板形问题，以控制凸度为主。对于组织有要求的，一般通过控轧控冷来实现，即控制精轧的开轧温度、终轧温度和卷曲温度来控制带钢的微观组织和机械性能。

Hot rolled plate, the temperature of the piece is high, so the deformation resistance is small, can achieve large deformation. Taking the rolling of steel plate as an example, the thickness of continuous casting billet is generally about 230mm, but after rough rolling and finishing rolling, the final thickness is 1~20mm. At the same time, due to the small width ratio of the steel plate, the size accuracy requirement is relatively low, it is not easy to appear the plate shape problem, mainly to control the convexity. For the organization requirements, generally through the rolling control to achieve, that is, the finishing rolling temperature, final rolling temperature and coil temperature to control the microorganization and mechanical properties of the strip steel.

从定义上来说，钢锭或钢坯在常温下很难变形，不易加工，一般加热到1100～1250℃进行轧制，这种轧制工艺叫热轧。大部分钢材都用热轧方法轧制。但是因为在高温下钢的表面容易生成氧化铁皮，使热轧钢材表面粗糙，尺寸波动较大，所以要求表面光洁、尺寸精确、力学性能好的钢材，以热轧半成品或成品为原料再用冷轧方法生产。

By definition, the ingot or billet is difficult to deform at room temperature, not easy to process, generally heated to 1100~1250℃ for rolling, this rolling process is called hot rolling. Most of the steel is rolled by the hot rolling method. However, because the surface of steel is easy to generate oxide at high temperature, the surface of hot rolled steel is rough and the size fluctuation is large, so it is required that the surface is clean, accurate size, good mechanical properties of steel, with hot rolled semi-finished products or finished products as raw materials and cold rolling production.

热轧板如未经酸洗处理，则与市场上很多普通钢板的表面相类似，生了锈的表面为红色，没生锈的表面为紫黑色(氧化铁皮)。

Hot rolled plates, if treated without pickling, are similar to the surface of many ordinary steel plates on the market, where the rusty surface is red, and the unrusted surface is purple black (iron oxide skin).