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

1000 MPa-grade hot-rolled automotive frame steel and manufacturing method thereof

A technology for automobile frame steel and its production method, which is applied in the field of hot-rolled automobile frame steel and its manufacture, and 1000MPa hot-rolled frame steel and its manufacturing field, which can solve problems such as complex procedures, high steel cost, and long process, and reduce production The effect of cost, high rolling efficiency and good cold bending performance

Active Publication Date: 2018-12-18
武汉钢铁有限公司
View PDF25 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] From the above comparative patents, it can be seen that these patents have the following disadvantages: (1) A certain amount of expensive alloy elements, such as Ni, Cr, Mo, etc., are added, and the cost of steel is high
(2) The process is complicated, generally need to go through rolling + heat treatment process, the process is long

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
  • 1000 MPa-grade hot-rolled automotive frame steel and manufacturing method thereof
  • 1000 MPa-grade hot-rolled automotive frame steel and manufacturing method thereof
  • 1000 MPa-grade hot-rolled automotive frame steel and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with specific embodiments and examples, and the advantages and various effects of the present invention will be presented more clearly. Those skilled in the art should understand that these specific implementations and examples are used to illustrate the present invention, not to limit the present invention.

[0055] Throughout the specification, unless otherwise specified, terms used herein should be understood as commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, this specification shall take precedence.

[0056] Below is the example description of the present invention producing 1000MPa grade hot-rolled automobile frame steel:

[0057] The molten steel is smelted and then continuously cast to obtain a sla...

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
Tensile strengthaaaaaaaaaa
Yield strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses 1000 MPa-grade hot-rolled automotive frame steel and a producing method thereof. The raw materials of the steel comprise the chemical components including, by mass, 0,10-0.20%of C, not greater than 0.10% of Si, 1.5-1.7% of Mn, not greater than 0.005% of S, not greater than 0.015% of P, 0.045-0.055% of Nb, 0.08-0.10% of Ti, not greater than 40 ppm of N, 0.025-0.060% of Als,not greater than 0.002% of H and the balance Fe. According to a hot-rolled steel plate produced through the method, the yield strength is greater than or equal to 750 MPa, the tensile strength is greater than or equal to 1000 MPa, the elongation is greater than or equal to 10%, and cold bend positions are free of cracks and a good cold bend effect is achieved under the conditions that the wide cold bend is 180 degrees and the cold bend flexual center diameter D is equal to 4t (thickness). The technological flow adopted by the method is simple, no equipment needs to be additionally arranged, and the steel has the advantages of being capable of being produced on a large scale, economical, feasible and stable in performance.

Description

technical field [0001] The invention relates to a hot-rolled automobile frame steel and a manufacturing method thereof, in particular to a 1000MPa grade hot-rolled frame steel with excellent cold bending performance and a manufacturing method thereof, belonging to the field of hot-rolled automobile frame steel manufacturing. Background technique [0002] Hot-rolled automobile frame steel is widely used in commercial vehicles in my country and is widely used in various commercial vehicle enterprises, but the application strength level is relatively low, and the tensile strength is 510-700MPa. With the implementation of the "New National Standard 1589", domestic heavy-duty commercial vehicle manufacturers are actively promoting the upgrading of materials to realize the lightweight of heavy-duty commercial vehicles. The high strengthening of automobile frame steel is an important technical path to realize automobile lightweight, and it is also a future development trend. [00...

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): C22C38/02C22C38/04C22C38/12C22C38/14C22C38/06C21D8/02C21C7/06C21C7/068
CPCC21C7/06C21C7/068C21D8/0226C21D2211/005C21D2211/008C22C38/001C22C38/002C22C38/02C22C38/04C22C38/06C22C38/12C22C38/14
Inventor 魏兵刘永前赵江涛徐进桥刘斌张扬杨海林梁文
Owner 武汉钢铁有限公司
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