Martensite wear resistant steel and manufacturing method thereof

A martensitic and wear-resistant steel technology, applied in the field of martensitic wear-resistant steel and its manufacture, and wear-resistant castings, can solve the problem of unsatisfactory wear resistance of high-manganese steel, effective hardening of high-manganese steel, and low hardness and other problems, to achieve the effect of excellent toughness and wear resistance, low manufacturing cost and long service life

Inactive Publication Date: 2011-11-02
天津市蓟县东塔耐磨钢球厂
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High manganese steel is a kind of austenitic steel with low initial hardness. Only under the action of large impact load or joint stress can it exert the surface work hardening phenomenon and play a role in wear resistance. However, in actual working conditions, More than 90% of the processes cannot harden high manganese steel effectively, making the actual wear resistance of high manganese steel unsatisfactory

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
  • Martensite wear resistant steel and manufacturing method thereof
  • Martensite wear resistant steel and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Below in conjunction with embodiment, the present invention will be further described, and following embodiment is illustrative, not limiting, can not limit protection scope of the present invention with following embodiment.

[0012] A martensitic wear-resistant steel, according to chemical composition (mass percentage): C 0.30-0.35, Si 0.6-1.2, Mn 1.0-1.5, Cr 2.5-3.5, B 0.003-0.007, Ti 0.03-0.06, RE 0.1- 0.15, Al 0.01~0.03, S≤0.035, P≤0.035, and the rest is Fe.

[0013] Its manufacturing method includes smelting process and heat treatment process:

[0014] (1) Melting process:

[0015] The first step of microalloying treatment: Melting in an intermediate frequency induction furnace, adding Cr, Mn, and Si at 1550-1600 ° C, and putting the melted steel into a ladle;

[0016] The second step of microalloying treatment: put RESiFe into the ladle, the temperature is 1600°C during pouring, and then cool down to obtain the rough casting;

[0017] Put the rough casting int...

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 relates to martensite wear resistant steel and a manufacturing method thereof. The martensite wear resistant steel comprises the following chemical components in percentage by mass: 0.30-0.35 % of C (Carbon), 0.6-1.2 % of Si (Silicon), 1.0-1.5 % of Mn (Manganese), 2.5-3.5 % of Cr (Chromium), 0.003-0.007 % of B (Boron), 0.03-0.06 % of Ti (Titanium), 0.1-0.15 % of Re (Rhenium), 0.01-0.03 % of Al (aluminum), not more than 0.035 % of S (Sulfur), not more than 0.035 % of P (Phosphorus) and the balance of Fe (Ferrum); and through a smelting process and a heat treatment process, the martensite wear resistant steel is obtained. In the manufacturing method of the martensite wear resistant steel, provided by the invention, precious alloy elements like Mo (Molybdenum), Ni (Nickel) and the like are not used; by using the martensite wear resistant steel prepared by the manufacturing method in the invention, the mechanical property can satisfy the national standard; moreover, compared with a high manganese steel, the martensite wear resistant steel has the advantage of obviously improving the corrosion resistance and increasing the operation time or the wear resistance by 1-3 times.

Description

technical field [0001] The invention belongs to the field of cast steel, and relates to wear-resistant castings, in particular to a martensitic wear-resistant steel and a manufacturing method thereof. Background technique [0002] The current wear-resistant cast steel mainly includes high manganese steel and low alloy steel. High manganese steel is a kind of austenitic steel with low initial hardness. Only under the action of large impact load or joint stress can it exert the surface work hardening phenomenon and play a role in wear resistance. However, in actual working conditions, More than 90% of the processes cannot effectively harden the high manganese steel, making the actual wear resistance of the high manganese steel unsatisfactory. [0003] At present, foreign medium and low carbon alloy martensitic wear-resistant steels are mostly Cr, Mo and Ni alloy steels. The heat treatment process adopts the process of quenching and low temperature tempering to obtain alloy pr...

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): C22C38/32C22C33/04C21D1/18
Inventor 张乾磊张乾秋
Owner 天津市蓟县东塔耐磨钢球厂
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