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Process improvement of pinch roll in high speed bar production line
2023-09-01
Abstract: High speed bar products are generally used in the cooling bed after the segment of the first pinch and then brake. The finished products will produce pinch marks on the surface after the pinch roll, which will affect ...
Practice of accelerated rolling in ultra-thin tropical production
2023-08-12
For ultra-thin specification products, the thinner the thickness, the greater the temperature drop during rolling. Increasing the speed of rolling is one of the effective methods to ensure reasonable final rolling temperature a...
Improvement of cracking of hot rolled strip steel
2023-08-01
The production process of hot rolled strip steel: Liquid iron pretreatmentA top and bottom double-blown converter a deoxidation alloying a blown argon a slab continuous casta casting billet testa heating a roughing high-pre...
Fault analysis of automatic baler for high line
2023-07-24
Abstract This paper mainly introduces the structure, working process and the problems existing in the actual production process of the high line automatic baler and their solutions. keyword High line rolling mill, a...
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...
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15358968703
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15358968703