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Research Progress on Oxide Scale Control Technology of Steel in China(PDF)

MATERIALS CHINA[ISSN:1674-3962/CN:61-1473/TG]

Issue:
2019年第07期
Page:
689-695
Research Field:
前沿综述
Publishing date:

Info

Title:
Research Progress on Oxide Scale Control Technology of Steel in China
Author(s):
SUN Bin12 HAO Mingxin1 QI Jianjun3 ZHANG Wenyang4 SI Xiaoming5
(1. College of Mechanical Engineering, Shenyang University, Shenyang 110044, China)
(2. Hansteel Company, HBIS Group, Handan 056000 China) (3. HBIS Group,Shijiazhuang 050023, China)
(4. Maanshan Iron & Steel Co., Ltd., Maanshan 243003, China)
(5. No.4 Steel Making and Rolling General Plant, Maanshan Iron & Steel Co.,Ltd., Maanshan 243003, China)
Keywords:
oxide scale hot rolled steel flexible control surface defect reduction annealing
CLC:

PACS:
-
DOI:
10.7502/j.issn.1674-3962.201812015
DocumentCode:

Abstract:
Oxide scale is an inevitable product of hot rolled steel during production. There are a lot of surface quality problems resulted from the oxide scale. It is proposed that the research emphasis includes how to effectively utilize the oxide scale, rather than the descaling by pickling. In this paper, we described the development of the process of hot-rolled acid-free pickling high strength steel, introduced the method of improving the corrosion resistance of hot rolled steel by oxide scale and control means of granophyric defect on a plate. Finally, the key technology and development trend of direct reduction annealing and hot-dip galvanizing of acidfree steel sheet after temper rolling and wet spraying are put forward under the premise of eliminating acid pickling and pre-oxidation processes.

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Last Update: 2019-06-28