佛山市万庆物资有限公司

标题: 冷轧板卷平直板日钢邯钢宝钢精密电子铁料加工开平双光板 [打印本页]

作者: fsminQ    时间: 2022-3-7 11:20
标题: 冷轧板卷平直板日钢邯钢宝钢精密电子铁料加工开平双光板
冷轧是在室温条件下在再结晶温度以下将钢板进一步轧薄至为目标厚度的钢板。和热轧钢板比较,冷轧钢板厚度更加精确,
而且表面光滑、漂亮。冷轧板一般在开轧前是没有加热工序的。但是,由于带钢厚度小,很容易出现板形问题。而且,
冷轧后为成品,因此,为了控制带钢的尺寸精度和表面质量,采用了很多很繁琐的工艺。冷轧的生产线长,设备多,
工艺复杂。随着用户对带钢尺寸精度、板形和表面质量要求的提高,冷轧机组的控制模型、l1l2系统、
板形控制手段相对热轧要多。而且轧辊和带钢的温度也是其中一项比较重要的控制指标从定义上来说,
钢锭或钢坯在常温下很难变形,不易加工,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。
Cold rolling is a plate further rolled to the target thickness below the recrystallization temperature at room temperature.
Compared with hot rolled steel plate, cold rolled steel plate thickness is more accurate, and the surface is smooth and beautiful.
Cold rolled plate are generally have no heating process before rolling.However, due to the small thickness of the strip steel,
it is easy to appear plate shape problems.Moreover, after cold rolling is the finished product, therefore,
in order to control the size accuracy and surface quality of the strip steel, a lot of very tedious processes are adopted.Cold rolling production line is long,
many equipment, complex process.With the improvement of user requirements for strip size accuracy, plate shape and surface quality,
the control model, l1 and l2 system and plate shape control means of cold rolling unit are more than hot rolling.
And the temperature of roll and strip steel is also one of the more important control indicators by definition,
steel ingot or billet at room temperature is difficult to deform at room temperature, not easy to process,
most of the steel is rolled by hot rolling method.However, because the surface of steel at high temperature is easy to generate iron oxide skin,
so that the surface of hot rolled steel rough, size fluctuation, so the required surface smooth, accurate size, good mechanical properties of steel,
with hot rolled semi-finished products or finished products as raw material and then cold rolling method production.

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