Isotropic rolling method for structural steel rectangular ring

A rectangular ring, isotropic technology, used in metal rolling and other directions, can solve the problems of radial mechanical properties and axial mechanical properties that are quite different, consistent, and cannot guarantee the mechanical properties of rings.

Inactive Publication Date: 2016-03-16
GUIZHOU ANDA AVIATION FORGING
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of rectangular rings is mostly carried out by radial rolling. The rings and blanks are designed at the same height. The tapered rollers only play the role of preventing the rings from climbing and limiting the height increase of the rings. The axial deformation is small. As a result, the radial mechanical properties of the ring are quite different from the axial mechanical properties
With the development and progress of ring rolling technology, people have gradually mastered the radial / axial bidirectional rolling forming method. The axial mechanical properties of rectangular rings produced by this method have been greatly improved. However, it is still not possible. Ensure that the mechanical properties of the ring are consistent in all directions

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
  • Isotropic rolling method for structural steel rectangular ring

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0043] The main chemical element content (percentage by weight) of the alloy is: C content 0.34%-0.42%, Mn content 0.50%-0.80%, Si content 0.17%-0.37%, S content ≤ 0.015%, P content ≤0.025%, Cr content 0.08%~1.10%, Ni content ≤0.40%, Cu content ≤0.25, balance Fe.

[0044] The steps of this method are as follows:

[0045]The structural steel bar blanked according to the specification is heated to the forging temperature, and after upsetting, punching and pre-rolling, the height is H 1 , thickness B 1 , the outer diameter is R 1 rectangular ring blank;

[0046] like figure 1 As shown, the rectangular ring blank 1 is loaded into the ring rolling mill, the core roll 3 passes through the middle of the rectangular ring blank 1, the core roll 3 is driven and the rectangular ring blank 1 approaches the main roll 2, and then the tapered roll 4 is driven Near the other side of the rectangular ring blank 1, the upper and lower tapered rollers 4 clamp the rectangular ring blank 1 in ...

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 an isotropic rolling method for a structural steel rectangular ring. The isotropic rolling method comprises the following steps: firstly, heating a structural steel bar till a forging temperature, and carrying out upsetting, piercing and pre-rolling to form a rectangular ring blank; secondly, loading the rectangular ring blank on a ring rolling mill, lifting a conical roller by h=5mm-10mm to tilt the rectangular ring blank, and then carrying out rolling forming to obtain the structural steel rectangular ring. Such a method is capable of keeping the mechanical properties of the rectangular ring consistent in all directions by changing a flowing direction of the material during rolling, thereby improving the comprehensive mechanical properties of the rectangular ring. The method is used for producing the isotropic structural steel rectangular rings.

Description

technical field [0001] The invention relates to a rolling method for a structural steel rectangular ring, in particular to an isotropic rolling method for a structural steel rectangular ring. Background technique [0002] Ring rolling is currently one of the most effective means of producing high-performance seamless rings, and has been widely used in many fields such as aviation and aerospace. The production of rectangular rings is mostly carried out by radial rolling. The rings and blanks are designed at the same height. The tapered rollers only play the role of preventing the rings from climbing and limiting the height increase of the rings. The axial deformation is small. As a result, the radial mechanical properties of the ring are quite different from the axial mechanical properties. With the development and progress of ring rolling technology, people have gradually mastered the radial / axial bidirectional rolling forming method. The axial mechanical properties of rect...

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): B21H1/06
CPCB21H1/06
Inventor 欧阳斌徐东陈祖祥杨亚平李玉凤
Owner GUIZHOU ANDA AVIATION FORGING
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