There are two ways to form various section steel products, cold rolling and hot rolling. They are different from cold bending, and the product properties will be very different. If you want to fully understand it, you have to verify it through practical operation.

先来说说热轧型钢，主要是以板坯为原料进行的加工工艺，这过程中还需经过加热装置、粗轧机、精轧机、冷却装置等设备的处理，从而得到成型的产品。用户可以根据自身的不同需求，来设置不同的处理加工流程，以得到要求的型钢。

Let's first talk about the hot-rolled section steel, which is mainly the processing technology with slab as raw material. In this process, it also needs to be treated by heating device, roughing mill, finishing mill, cooling device and other equipment, so as to obtain the formed products. Users can set different processing processes according to their different needs to obtain the required section steel.

再来聊聊冷轧，它是以热轧产品作为原料的，因此是热轧基础上的进一步操作。将热轧得到的产品经过酸洗之后在进行冷轧处理，从而使得型钢的强、硬度、韧性等都有不同程度的改整个冷轧工艺应该包括了热轧、酸洗、冷轧等基本流程。c型钢经常被用来与其他型钢产品进行对比，主要是为了方便用户的选用，也是如此，比较的一方也是C型钢，而另一方则是方型钢。一起来看看对比后的结果是怎样的?

Let's talk about cold rolling. It takes hot-rolled products as raw materials, so it is a further operation on the basis of hot rolling. After pickling, the products obtained from hot rolling are subject to cold rolling treatment, so that the strength, hardness and toughness of section steel are changed to varying degrees. The whole cold rolling process should include basic processes such as hot rolling, pickling and cold rolling. C-section steel is often used to compare with other section steel products, mainly for the convenience of users. The same is true. One side of the comparison is also C-section steel, while the other side is square section steel. Let's see what the result is after the comparison?

关于c型钢的性能我们就不多说了，这在之前的介绍中已经提到过多次了，由于材料性能方面的特殊性，c型钢在建筑行业应用的比较多。这也是因为C型钢的质量比较好，完全符合建筑行业的特殊要求，也就是说总的来说C型钢比方型钢更加好用。

We won't say much about the properties of C-section steel, which has been mentioned many times in the previous introduction. Due to the particularity of material properties, C-section steel is widely used in the construction industry. This is also because the quality of C-section steel is relatively good, which fully meets the special requirements of the construction industry, that is, in general, C-section steel is easier to use than section steel.

而在制作工艺方面，这两种型钢产品基本上都是一样的，只是有的c型钢会有加强筋，因此与方型钢相比的话会更加坚固一些。从方面进行比较的话，还是C型钢更加便宜，这也是为何选用的人会比较多的缘故。

In terms of manufacturing process, these two kinds of section steel products are basically the same, but some C-section steel will have stiffeners, so it will be more solid compared with square section steel. In terms of price, C-section steel is cheaper, which is why more people choose it.

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