軋鋼生產的工序十分復雜，盡管隨著軋制質量要求的提高，品種范圍的擴大以及新技術，新設備的應用，組成工藝過程的各個工序都會有相應的變化.

The process of rolling production is very complicated. Although all the processes of the process will be changed along with the improvement of rolling quality requirements, the expansion of varieties and the application of new technology and new equipment.

整個軋鋼生產過程總是有以下幾個基本工序組成的：

坯料準備，包括表面缺陷的清理，表面氧化鐵皮的去除和坯料的預先熱處理等。坯料的加熱，是熱軋生產工藝過程的重要工序。

The whole rolling process of steel rolling is always composed of the following basic processes:

Preparation of the billet, including the cleaning of surface defects, the removal of the iron oxide skin on the surface, and the pre heat treatment of the blank. The heating of the billet is an important process in the process of hot rolling.

棒材穿水冷卻裝置的基本原理是什么？

在精軋機后設有一個由數(shù)個水冷箱組成的可調水冷段，對棒材進行急劇冷卻，使棒材表面形成馬氏體組織，在隨后的溫度恢復過程中，芯部熱量散出對表面馬氏體組織可產生回火作用，結果棒材表面層為回火馬氏體，芯部為細粒珠光體及索氏體組織。這種組織結構使棒材屈服極限和韌性提高，并具有良好的可焊性。鋼錠或鋼坯在常溫下很難變形，不易加工，需要進行加熱到1100℃到1250℃進行軋制，這種軋制工藝叫做熱軋。

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.

軋輥的彈性壓扁沿輥身長度散布是不勻稱的，若邊部延伸率大。軋機支持輥的外貌肖氏硬度1樣平常為HS45左右，在另1側設專人觀察，也會出現(xiàn)相反的環(huán)境，薄鋼板通常以卷板和剪切成肯定長度和寬度的單張板投放市場。

The elastic flattening of the roll is uneven along the length of the roller body, and the elongation at the side is large. The appearance of the rolling mill support roll is about 1 HS45, which is normally observed on the other 1 sides, and the  environment will occur. Thin plates are usually put on the market with rolled plates and a single sheet that is cut to a certain length and width.