Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-carbon steel hot rolling method

A low-carbon steel, finish rolling technology, applied in the field of steel billet hot rolling, can solve problems affecting product performance, thick iron scale, unfavorable processing, etc., achieve thinning iron scale, lower coiling temperature in hot rolling, and save production costs Effect

Inactive Publication Date: 2021-04-20
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned process can obtain a low-carbon steel hot-rolled sheet with better performance, the temperature is high when the finished-rolled steel plate is coiled, which is prone to produce thicker oxide scale, which is not conducive to subsequent processing and affects product performance.

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
  • Low-carbon steel hot rolling method
  • Low-carbon steel hot rolling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The following four sets of comparative experiments were used, wherein the first two sets of data used the process parameters provided by the present application, and the latter two sets of data used the process parameters commonly used in the prior art. The details are shown in Table 1 below:

[0018] Table 1 Main process parameters of hot rolling

[0019]

[0020] The mechanical properties of the hot-rolled steel plate prepared by the above process are shown in Table 2 below:

[0021] Table 2 Mechanical properties of hot-rolled steel plates

[0022]

[0023] Visible by above-mentioned comparison, adopt the hot-rolling process that the application provides, all lower than existing process on heating temperature, finish rolling temperature, final rolling temperature and coiling temperature, final performance is but adopts the product of existing process to be comparable. Almost, fully meet the requirements of use, but lowering the temperature can save production ...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a low-carbon steel hot rolling method in the technical field of billet hot rolling, and a conventional hot rolling unit is used to roll a low-carbon steel billet. The method comprises the following steps that firstly, a continuous casting billet is heated to 1110-1150 DEG C for 200-260 min in a furnace; then rough rolling is carried out, wherein the thickness of a rough rolling intermediate plate blank is controlled to be 44-49 mm; next, finish rolling is conducted, wherein the initial rolling temperature of the finish rolling stage is 910-950 DEG C, the final rolling temperature of the finish rolling stage is 790-810 DEG C, and the thickness of a finish rolling plate is controlled to be 3-4 mm; and finally, the finish rolling plate is cooled to 670-700 DEG C and then coiled. The method has the beneficial effects that by adopting specific heating temperature and hot rolling process control, the deep drawing performance of a material is improved, and meanwhile, the heating temperature is reduced, so that the hot rolling coiling temperature is reduced, and oxide scales on the surface of a hot rolled steel plate are greatly thinned.

Description

technical field [0001] The invention relates to the technical field of steel billet hot rolling, in particular to a low carbon steel hot rolling method. Background technique [0002] With the continuous development of the steel industry, the market's requirements for steel plates continue to increase. On the premise of ensuring performance, the demand for reducing costs and improving surface quality continues to increase. [0003] For the hot rolling of continuous casting slabs, it is already a relatively mature technology. For example, CN1586752A provides a thin slab continuous casting and rolling low-carbon steel ferrite production method. Through the process parameters provided by it, it can produce Low carbon steel sheet with low tensile strength, yield strength and low yield strength. Another example is CN1752261A, which provides a stamping-grade low-carbon steel hot-rolled sheet and its manufacturing method, which also obtains a low-carbon hot-rolled sheet through the...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B37/28B21B37/44B21B37/74C21D8/02
Inventor 王敏莉郑之旺郑昊青余灿生
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com