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

Heat treatment deformation control method for 23Co14Ni12Cr3MoE steel large part

A technology for heat treatment deformation and large parts, which is applied in the field of heat treatment deformation control of large parts of 23Co14Ni12Cr3MoE steel, can solve the problems of burns, easy occurrence of vibration lines, and scrapped parts, and achieves the effect of eliminating time interval, reducing quenching stress and changing stress distribution.

Inactive Publication Date: 2020-11-13
SHENYANG AIRCRAFT CORP
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, problems such as vibration marks and burns are prone to occur after heat treatment, which has a great impact on the fatigue performance of parts
If the parts are subjected to static pressure correction after heat treatment, the loading force is not well controlled, and it is easy to cause the parts to break and be scrapped due to improper application of external force
Therefore, the deformation of large and complex structural parts made of 23Co14Ni12Cr3MoE steel after heat treatment is a technical bottleneck restricting production
[0004] At present, there is no effective heat treatment deformation control method for large and complex components made of 23Co14Ni12Cr3MoE steel at home and abroad

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention is further illustrated by the following examples, but not as a limitation of the present invention. Specific materials and their sources used in embodiments of the invention are provided below. However, it should be understood that these are merely exemplary and not intended to limit the present invention, and materials with the same or similar type, model, quality, property or function as the following reagents and instruments can be used to implement the present invention. The experimental methods used in the following examples are conventional methods unless otherwise specified. The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0026] Select large complex parts made of 23Co14Ni12Cr3MoE steel, use the deformation control method involved in the present invention to carry out heat treatment, and perform performance assessment on the parts after heat treatment, and the te...

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 heat treatment deformation control method for a 23Co14Ni12Cr3MoE steel large part. The heat treatment deformation control method comprises the steps of stress relief tempering, gas-cooled quenching, ice-cold treatment, low-temperature tempering, correction, final tempering and the like. According to the heat treatment deformation control method, vacuum gas-cooled quenching is adopted to replace oil-cooled quenching with a relatively high cooling speed, the hardness, tensile strength, yield strength, fracture toughness and the like of the part after heat treatment allmeet the technical standard requirements, moreover, the generation of quenching stress can be reduced, the part is basically not deformed after heat treatment, and the size precision meets the designrequirements.

Description

technical field [0001] The invention belongs to the technical field of heat treatment of ultra-high-strength steel, and in particular relates to a heat treatment deformation control method for large parts of 23Co14Ni12Cr3MoE steel. Background technique [0002] 23Co14Ni12Cr3MoE steel is a high-alloy ultra-high-strength steel with ultra-high strength, good fracture toughness, high fatigue strength, excellent resistance to stress corrosion fracture and fatigue crack fracture, and has become a The preferred material for manufacturing large and complex structural parts such as aircraft landing gear and load-bearing frame beams in the aviation field. During the heat treatment process, the ultra-high-strength steel complex structural parts will inevitably be deformed under the action of thermal stress and structural stress. Especially for aircraft rods and beams with little margin, uneven wall thickness, and sharp changes in cross-sectional dimensions, deformation of the parts af...

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): C21D1/18C21D1/74C21D6/04B21D1/00B21D3/00
CPCB21D1/00B21D3/00C21D1/18C21D1/74C21D6/007C21D6/04
Inventor 焦清洋韩培培康冲赵博李红恩李志古立新
Owner SHENYANG AIRCRAFT CORP
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