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

Steel forge piece and machining method thereof

A processing method and technology for steel forgings, applied in the field of steel processing, can solve the problems of low balance between yield strength, tensile strength and corrosion resistance of stainless steel forgings, low comprehensive performance of forgings, and low comprehensive effect, etc., to achieve high balance, Strong low temperature resistance and strong weather resistance

Active Publication Date: 2018-06-15
TIANJIN RONGCHENG UNITED IRON & STEEL GRP CO LTD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above improves the corrosion resistance of forgings, but the comprehensive performance of forgings is low; at the same time, from the perspective of current forging processing technology, stainless steel forgings in mechanical equipment such as oil mining machinery, rail transportation technology industry or military products, etc. The balance of yield strength, tensile strength and corrosion resistance is relatively low, the overall effect is not high, and there are improvements

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
  • Steel forge piece and machining method thereof
  • Steel forge piece and machining method thereof
  • Steel forge piece and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The mass percent of each element in a kind of steel forging of table 1 embodiment 1

[0032] components

Embodiment 2

[0034] The mass percent of each element in a kind of steel forging of table 2 embodiment 2

[0035] components

Embodiment 3

[0037] The mass percent of each element in a kind of steel forging of table 3 embodiment 3

[0038] components

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 steel forge piece and a machining method thereof. The problem that the overall performance of an austenitic stainless steel forge piece prepared through an existing machiningmethod is solved. According to the technical scheme, the steel forge piece comprises chemical components including, by mass, not larger than 0.08% of C, not larger than 2.20% of Mn, not larger than 1.50% of Si, not larger than 0.02% of P, not larger than 0.025% of S, 11%-13% of Cr, 2.00%-8.00% of Ni, 0.30%-0.60% of Mo, 1.50%-3.50% of Cu, not larger than 0.60% of Nb, not larger than 0.25% of V andthe balance Fe. The prepared forge piece has the beneficial effects of high strength, high tenacity, corrosion resistance, abrasion resistance, high weather fastness, high temperature resistance, lowtemperature resistance, high stability and the like.

Description

technical field [0001] The invention relates to the technical field of steel processing, in particular to a steel forging and a processing method thereof. Background technique [0002] At present, petrochemical and coal chemical industries are developing rapidly, and the scale of equipment tends to be larger. The weight of hydrogenation reactors in petroleum and coal-fired mining machinery and petrochemical core equipment has exceeded the kiloton level. Gradually, domestic mining machinery and reactors with plate-welded structures are being upgraded to forge-welded structures. [0003] The precipitation hardening treatment of stainless steel is generally described as three stages. The specific heat treatment steps are similar to martensitic steel, carbon steel and alloy steel. In fact, precipitation hardening stainless steel is improved on the basis of ordinary stainless steel, and its corrosion resistance, toughness and processing performance are further improved. [000...

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): C22C33/04C21C7/06C21C7/064C21D8/00C22C38/58C22C38/48C22C38/46C22C38/44C22C38/42
CPCC21C7/06C21C7/064C21D8/00C22C33/04C22C38/02C22C38/04C22C38/40C22C38/42C22C38/44C22C38/46C22C38/48C22C38/58
Inventor 李学刚刘和家
Owner TIANJIN RONGCHENG UNITED IRON & STEEL GRP CO LTD
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