Bar cooling speed adjusting method and device and bar rolling method and system

A technology of cooling rate and adjustment method, applied in cooling bed, metal rolling, metal rolling, etc., can solve the problems of inability to adjust cooling rate and the hardness value of hot-rolled bars cannot meet the requirements of downstream users, so as to meet the hardness value desired effect

Pending Publication Date: 2022-04-08
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing rolling system can only cool the bar according to a certain set cooling rate, and cannot adjust the cooling rate, resulting in the hardness value of the hot-rolled bar not meeting the requirements of downstream users

Method used

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  • Bar cooling speed adjusting method and device and bar rolling method and system
  • Bar cooling speed adjusting method and device and bar rolling method and system
  • Bar cooling speed adjusting method and device and bar rolling method and system

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Embodiment Construction

[0029] In view of this, the core of the present invention is to provide a method for adjusting the cooling rate of the bar so that the hardness value of the hot-rolled bar meets the requirements of downstream users.

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] like Figure 1 to Figure 2 As shown, the embodiment of the present invention discloses a method for adjusting the cooling rate of the bar 400, including steps:

[0032] S1: Adjust the placement interval of the bar 400 on the cooling bed r...

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Abstract

The invention discloses a bar cooling speed adjusting method and device and a bar rolling method and system. The bar cooling speed adjusting method comprises the steps that S1, the placing interval of bars on a cooling bed rack is adjusted; s2, the inclination degree of a cooling bed heat preservation cover is adjusted; and S3, the moving period of the cooling bed rack is adjusted. According to the bar cooling speed adjusting method provided by the invention, adjustment is carried out from three aspects of the placing interval of the bars, the inclination degree of the cooling bed heat preservation cover and the moving period of the cooling bed rack, so that the cooling speed of the bars is effectively controlled, the hardness value of the hot-rolled bars is controlled, and the requirement of downstream users on the hardness value of the hot-rolled bars is met.

Description

technical field [0001] The invention relates to the technical field of bar cooling, in particular to a bar cooling speed adjustment method and device, and a bar rolling method and system. Background technique [0002] With the continuous improvement of the quality level of Chinese products, especially the high-quality development of China's industrial level, downstream users of hot-rolled bars have put forward higher requirements for the quality of hot-rolled round bars, such as requiring that the hardness value of hot-rolled bars ≤ 269HBW. [0003] In the production process, the hardness value of the bar is related to its chemical composition and the cooling rate after rolling. When the chemical composition is constant, the hardness value of the bar is directly related to the cooling rate. The existing rolling system can only cool the bar according to a certain set cooling rate, and cannot adjust the cooling rate, resulting in that the hardness value of the hot-rolled bar ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/16B21B43/00
Inventor 王宗斌闫晗尹崇丽梁娜李玉华孙相中郭磊石军强
Owner SHANDONG IRON & STEEL CO LTD
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