关于机械产量，二十世纪七十年代后期，控制冷却技术的发展使得钢板轧制中的TMCP技术得到广泛发展。
With regard to mechanical production， the development of cooling technology in the late 1970s made the TMCP technology develop widely in steel plate rolling.
开口式机架由机架底座和上横梁组成。
开口式机架是型钢车间常见的一种机架形式。这种机架的优点是制造简单，装卸、换辊方便。其缺点是强度和刚度较低，轧辊辊跳值较大，影响产品精度，故只适用于大型轧机。
The open frame is of the frame base and the upper cross beam.
The open frame is one of the most common forms in the steel workshop. The advantages of this frame are simple manufacturing， loading and unloading，350轧机价格， and convenient for roll change. Its disadvantage is that its strength and stiffness are low， the roll roll value is larger and the precision of the product is affected，350轧机， so it is only suitable for large rolling mill.
使用热轧的第二个优点就在于其可以适当的改善金属以及合金材料的加工工艺性能。也就是说，其可以把较大的晶粒进行*碎，同时可以减少裂纹的出现，这样一来，350轧机谁家好，也就相当于减少了铸造过程中的缺陷问题，350轧机厂家，提高合金的加工性能。
The second advantage of hot rolling is that it can appropriately improve the processing performance of metal and alloy materials. That is to say， it can break the larger grain and reduce the appearance of the crack， which is equivalent to reducing the defects in the casting process and improving the processing performance of the alloy.
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