Causes and effects of iron oxide scale formation

2022-06-11

　　Iron oxide scale is a layer of metal oxide attached to the metal surface when the metal is heated, heat treated or processed in a hot state. Due to the difference of metal composition, surface temperature, heating and cooling...

Design and analysis of PLC control system in metallurgical continuous casting electrical system

2022-06-11

　　Abstract: the production efficiency of continuous caster and slab quality are directly affected by the automation level of metallurgical continuous casting production. The application of PLC control system greatly improves th...

Practice of increasing gas utilization rate of No.1 1080mm blast furnace in Laigang

2022-06-11

　　Abstract: by optimizing the distribution system, reducing the amount of small-size ore into the furnace, increasing the iron tapping rate at the iron port, and reducing the slow wind down production operation caused by equipm...

Optimization of double length cutting program of flying shear and common fault treatment

2022-06-10

　　1. Basic functions and composition of flying shear 　　In this rolling line, the flying shear is an important part of the auxiliary transmission equipment in the production line, which has a great impact on the normal produ...

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 ...