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.

机架是轧钢机的主要部件，它在轧钢过程中承担金属变形给予的负荷。因此要求机架有足够的强度和刚度，以保证设备安全和产品质量。型钢轧机的机架形式较多，常见的机架形式有开口式机架、闭口式机架和半闭口式机架3种。

The frame is the main component of the rolling mill, which bears the load given by the metal deformation during the rolling process. Therefore, the frame is required to h***e sufficient strength and stiffness to ensure the safety of the equipment and the quality of the product. There are more frame forms of the steel mill. There are 3 kinds of common frame forms: open frame, closed frame and half closed frame.

短应力线轧机有什么特点？

短应力线轧机具有体积小、重量轻、轧机刚度大、轴承使用寿命长等优点。近年来该轧机在小型轧机上使用越来越广泛。随着短应力线轧机在线快速换辊装置的出现，使轧机***减少，导致其应用将会更普遍。

What are the characteristics of a short stress line mill?

Short stress line mill has the advantages of ***all volume, light weight, large rigidity of rolling mill and long service life of bearing. In recent years, the rolling mill has been used more and more widely in ***all rolling mill. With the emergence of on-line fast roll change device for short stress line rolling mill, the investment of rolling mill is reduced, and its application will be more common.