High-grade pipeline steel finish rolling temperature stability control method

A stable control method and finishing temperature technology, applied in temperature control and other directions, can solve problems such as large difference in head and tail performance

Active Publication Date: 2021-01-12
PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
View PDF18 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a company’s 2050mm hot rolling line uses speed and acceleration to control the final rolling temperature. For conventional varieties, the final rolling temperature of the strip can be controlled a...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-grade pipeline steel finish rolling temperature stability control method
  • High-grade pipeline steel finish rolling temperature stability control method
  • High-grade pipeline steel finish rolling temperature stability control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The core of the present invention is to provide a method for stabilizing the final rolling temperature of high-grade pipeline steel, which can significantly improve the stability of the final rolling temperature of high-grade pipeline steel and reduce the performance difference between the head and the tail of the pipeline steel.

[0031] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Please refer to figure 1 with figure 2 , figure 1 It is a flow chart of a specific embodiment of the high-grade pipeline steel finish rolling temperature stabilization control method provided by the present invention; figure 2 It is a flow chart of another specific embodiment of the method for stabilizing the finish rolling temperature of high-grade pipeline steel provided by the present...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-grade pipeline steel finish rolling temperature stability control method. The method comprises the following steps that pipeline steel is heated; rough rolling is carried out on the heated pipeline steel; finish rolling is carried out on the pipeline steel subjected to rough rolling; finish rolling of the pipeline steel after rough rolling comprises the steps that finish rolling is carried out on the pipeline steel at a constant speed; and cooling water is started for a first rack and a fourth rack in a finish rolling rack set, and after a seventh rack bites thesteel for preset time, the cooling water is stopped. According to the high-grade pipeline steel finish rolling temperature stability control method, finish rolling is carried out at a constant speed to improve the stability of the finish rolling temperature, the cooling water between the F1 rack and the F4 rack is adopted, the strip steel head finish rolling temperature is reduced by adding waterto the F4 rack at the head, so that the purpose of stabilizing the overall finish rolling temperature is achieved.

Description

technical field [0001] The invention relates to the field of rolling control methods, in particular to a method for stabilizing the final rolling temperature of high-grade pipeline steel. Background technique [0002] The main function of pipeline steel is to undertake the transportation of oil and gas after becoming steel pipes through spiral submerged arc welding or straight seam submerged arc welding. With the advancement of national key projects such as West-to-East Gas Transmission and Sichuan-to-East Gas Transmission, the demand for pipeline steel is increasing day by day , especially high-grade pipeline steel represented by X80. Since the X80 pipeline steel has extremely high requirements on comprehensive properties such as strength, hardness and impact toughness, it has extremely high requirements on the uniformity of the final rolling temperature of the strip. [0003] In the prior art, there are mainly two strategies for controlling the finish rolling temperature ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21B37/74
CPCB21B37/74
Inventor 杨程李卫平王羿陈俊付开忠
Owner PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap