Main defects and analysis of strip steel rolling, hot rolling technology

2023-07-21

The main defects caused by rolling strip steel on a tropical mill are as follows:   (1) Scar. The cracks and cracks were not completely removed when the slab was cleaned, resulting in scarring during rolling. Slabs...

Finishing area process technology operating rules, rod line technology

2023-07-05

1. Cold bed   1.1. effect   After rolling, the double ruler is accelerated, braked, and sent to the cold bed for cooling and grouping to ensure that the double ruler on the cold bed is straight and one...

Finishing mill roll box maintenance

2023-06-21

The roller box belongs to the closed reducer mechanism, which has strict maintenance requirements, especially higher requirements for sealing oil, dustproof and waterproof. The roller box has 3 shafts as the focus of sealing, and ...

Discussion on production technology and common quality problems of hot rolled strip steel

2023-06-05

Abstract: The main quality indexes of hot rolled strip steel products include surface quality, shape and dimensional accuracy, mechanical properties and so on. With the wide application of automatic control technology in hot ro...

Solutions to common problems in aluminum rolling process

2023-05-18

The quality control technology in aluminum rolling process is very important to the current production enterprises. We now use the raw material rolling technology is to follow the mid-1970s Shanghai aluminum factory taught down...

Advantages and disadvantages of hot-rolled seamless steel tubes

2022-12-27

　　Generally, the production process of seamless steel pipe can be divided into cold drawing and hot rolling. Hot rolling, as the name implies, has high temperature of rolled piece, so the deformation resistance is small and lar...

Control points of HRB400, hrb400e and HRB500 steel bar rolling

2022-08-08

　　1、 Preparation of raw materials 　　1. The feeding team shall do a good job in the classified stacking and identification of converter hrb400-hrb500 steel billets to avoid mixed numbers. 　　2. The lagging blanks shall be...

Selection and principle of cold rolling oil

2022-07-21

　　1. Preface 　　Whether the rolling oil is selected correctly in cold rolling directly affects the output and quality of the rolling mill Especially for the newly-built rolling mill, the cold rolling oil suitable for the cha...

Research on technology of reducing consumption and improving efficiency of steel rolling heating furnace

2022-07-07

　　Heating furnace is an important thermal equipment in the production process of iron and steel industry, and plays a very important role in steel rolling production. Its energy consumption accounts for 6% of the total energy c...

Spinning machine and pinch roll

2022-07-05

　　Effect of current limit amplitude adjustment of pinch roll 　　By adjusting the current limit amplitude of the pinch roll, the working state and clamping capacity of the pinch roll in the clamping process can be changed. Th...

Analysis of mechanical screwdown device based on 4300mm plate mill of Xingcheng Special Steel

2022-07-04

　　Abstract: in today's society, steel is a very important material, which is widely used in many fields. Taking Xingcheng Special Steel as an example, there are some problems in the mechanical screwdown device of 4300mm pla...

Operating procedures for guide fitter

2022-06-27

　　1、 Standards and parameters: 　　1. the guide box, guide pair, guide roller, wear plate, nose cone and other guide components of each Sorty shall be selected in strict accordance with the guide layout table. 　　2. the as...