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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...
Changes in steel when heated
2022-03-24
Most of the heat treatment of steel needs to be heated to obtain austenite, and then cooled at different speeds to transform the austenite into different structures to obtain different properties of the steel. Therefore, to mas...
Automatic control of high pressure water descaling system
2022-03-24
0 Preface In the production process of hot-rolled steel, the furnace pig iron oxide scale on the surface of the billet is one of the main reasons for affecting the surface quality of the steel. Due to its existence, various p...
Basic knowledge about continuous pipe mills
2022-03-24
What is a continuous rolling mill? Continuous tube rolling mill is a high-efficiency rolling mill for producing medium and small diameter seamless steel tubes. It is to sleeve the perforated capillary on a mandrel, and pass t...
Production practice of reducing cost of red steel bar and rebar production line
2022-03-24
Abstract: This paper introduces the difficulties faced by the cost control of the bar production line in the rolling mill of Honghe Iron and Steel Co., Ltd. The equipment level of the bar production line is not high, the supply...
Application and practice of fixed-length shearing in high-quality bar production line
2022-03-24
1 Overview of production status Xuangang's high-quality bar production line was officially put into production in March 2012. This production line is currently a professional production line in domestic technology and aut...
Maintenance of finishing mill roll boxes
2022-03-24
The roller box is a closed reduction gear box mechanism, and the maintenance requirements are strict, especially for oil sealing, dustproof and waterproof. The roller box has 3 shafts as the key points of sealing, and the seali...
Hole design
2022-03-24
Characteristics of bar production in my country 1) High production capacity Regardless of the number of rolling mills in my country, the output of wire rods is still growing at a relatively fast rate (the average annual growt...
Controlled Rolling, Controlled Cooling Technology-1
2022-03-24
1.1 Control the rolling process Controlling the rolling process includes heating the billet to a suitable temperature, controlling the deformation amount and temperature during rolling, and cooling the steel according to the ...
Controlled Rolling, Controlled Cooling Technology-2
2022-03-24
Development of Controlled Rolling and Controlled Cooling Technology in China my country is rich in niobium, vanadium, titanium and rare earth resources, and has broad prospects for the development of microalloy controlled rol...
Application and technology of tension leveling and rewinding unit
2022-03-24
Brief description of production process The incoming material coil of the unit is hoisted by the crane in the workshop to the incoming material storage platform at the front of the unit, and the storage platform i...
PLC control optimization strategy of cold rolling recoil inspection unit
2022-03-24
The cold-rolled re-coil inspection unit is an intermediate process of the cold-rolled production line. Its main function is to cut the large coil into smaller outer diameter coils and inspect the surface quality of the coils. I...
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15358968703
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15358968703