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...

Common continuous casting equipment

2022-06-08

        Common continuous casting equipment 　　Overall effect drawing of billet caster 　　Overall effect drawing of slab caster 　　1) Ladle turret 　　Ladle turntable is used to turn the...

Vertical continuous casting technology for flat and long products

2022-06-08

　　The vertical continuous caster was initially used in continuous casting technology. It is an important part of ingot production, which can greatly save operating costs. Arc continuous caster is a new type of improved continuo...