在開(kāi)始軋制之前，由高壓水除鱗裝置利用高壓水對(duì)坯料表面的氧化鐵皮進(jìn)行清理，以避免軋制過(guò)程中氧化鐵皮的壓入，從而保證終產(chǎn)品質(zhì)量。

Before starting rolling, the high pressure water descaling device is used to clean the scale of billet surface by high pressure water, so as to avoid the indentation of oxide scale during rolling process, so as to ensure the final product quality.

鋼錠或鋼坯在常溫下很難變形，不易加工，需要進(jìn)行加熱到1100℃到1250℃進(jìn)行軋制，這種軋制工藝叫做熱軋。在常溫下的軋制一般理解為冷軋.

Ingot or billet are difficult to be deformed at normal temperature and are not easy to be processed. They need to be heated to 1100 and 1250 C for rolling. This rolling process is called hot rolling. Rolling at normal temperature is generally understood as cold rolling.

棒材穿水冷卻裝置的基本原理是什么？

在精軋機(jī)后設(shè)有一個(gè)由數(shù)個(gè)水冷箱組成的可調(diào)水冷段，對(duì)棒材進(jìn)行急劇冷卻，使棒材表面形成馬氏體組織，在隨后的溫度恢復(fù)過(guò)程中，芯部熱量散出對(duì)表面馬氏體組織可產(chǎn)生回火作用，結(jié)果棒材表面層為回火馬氏體，芯部為細(xì)粒珠光體及索氏體組織。軋制變形制度：即一定軋制條件下從坯料到成品的總變形量和軋制的總道次，各機(jī)組的總變形量各道次的變形量，軋制方式等。這種組織結(jié)構(gòu)使棒材屈服極限和韌性提高，并具有良好的可焊性。

What is the basic principle of the bar water cooling device?

After the finishing mill, there is an adjustable water cooling section  of several water cooling boxes. The rod material is cooled sharply to form martensite structure. During the subsequent temperature recovery process, the heat of the core can produce tempering on the surface martensite, and the surface layer of the rod is tempered martensite, the core is fine pearlite and Soxhlet body. This structure improves the yield limit and toughness of bars, and has good solderability.

橫軋有兩種類型：一類是軋輥孔型沿軸向是不變的，沿徑向呈周期變化。軋件主要靠徑向變形實(shí)現(xiàn)成型。另一類是鍥橫軋工藝，即在兩個(gè)或者三個(gè)互相平行布置的軋輥或兩個(gè)平板的表面上.

There are two types of cross rolling: one is the roll pass is unchanged along the axis, and the other is radial variation. The workpiece is mainly formed by radial deformation. The other is the cross rolling process, that is, on the surface of two or three parallel rolls or two plates.