Causes of strip steel surface defects and preventive measures

2022-06-10

　　Loose sand sheet iron 　　Shapes that appear: 　　The iron sheet is dark brown, round and fine, distributed in loose sand 　　Cause of occurrence: 　　1) The high-temperature rolled piece is rolled on the roll with ro...

Proposal and analysis of critical thickness of secondary cooling shell

2022-06-10

　　Concept of critical thickness of secondary cooling 　　After the primary cooling of the crystallizer, the solid billet shell formed in the crystallizer is wrapped with high-temperature molten steel and enters the secondary ...

Technical progress of blast furnace ironmaking in Xuanhua Iron and Steel Co., Ltd

2022-06-10

　　1. Foreword 　　At present, Xuanhua Iron and Steel Co., Ltd. has 3 blast furnaces, 2500m3 × 2+2000m3 × 1。 In recent years, the former process of Xuanhua Iron and Steel Co., Ltd. has taken many measures at the sa...

Exploration and practice of distribution matrix for No. 1 BF of Han steel

2022-06-10

　　Abstract: the distribution matrix is an important means to adjust the burden system of blast furnace. Through continuous exploration and study of blast furnace distribution matrix, combining theory with practice, Han Steel No...

Jinhai stainless steel production management digital system will be put into operation in 2023

2022-06-09

　　A few days ago, with the implementation of the enterprise production management digital system transformation project of Wuzhou Jinhai Stainless Steel Co., Ltd., a subsidiary of Guangdong Jinhai brilliant group, a vice chairm...

In May, 9 domestic steel mills released capacity replacement plan

2022-06-09

　　According to incomplete statistics, in May, 9 domestic steel mills released steel capacity replacement plans. 　　Among them, the newly-built steel-making capacity is 6.935 million tons, and the newly-built iron-making capa...