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

A kind of wear-resistant steel and its production process

A production process and wear-resistant steel technology, applied in the direction of improving process efficiency, etc., can solve the problems of poor wear resistance, low steel strength and hardness, etc., and achieve the effects of improving wear resistance, enhancing strength, and eliminating adverse effects

Active Publication Date: 2019-12-10
TIANJIN RONGCHENG UNITED IRON & STEEL GRP CO LTD
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Both of the above two wear-resistant steels belong to low-carbon steel, which has the inherent characteristics of low-carbon steel, that is, the steel has low strength and hardness, and poor wear resistance.

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
  • A kind of wear-resistant steel and its production process
  • A kind of wear-resistant steel and its production process
  • A kind of wear-resistant steel and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The following is a further detailed description of the present invention.

[0047] A production process of wear-resistant steel includes the following steps:

[0048] Step 1: According to the mass percentage, the 115t steel containing C0.73~0.83%, Si0.15~0.20%, Mn0.75~0.85%, Cr0.40~0.50%, P≤0.020%, S≤0.025% It is added to the converter for smelting, and then low-nitrogen carbon powder, deoxidizer, silicomanganese, ferrosilicon, high-carbon ferrochrome, titanium, copper, tungsten, vanadium, and yttrium are sequentially added to the converter. Aluminum strips and aluminum strips are used as deoxidizers. The amount of steel is 0.8~1.0kg / t, and Ar is injected from the bottom of the converter in the whole process, the oxygen pressure is controlled to be ≥0.8Mpa, and the end point of smelting is C≥0.15%, P≤0.015%, and the temperature of molten iron reaches 1615~1635℃. After that, the steel is tapped, and white ash is added to the ladle. The amount of white ash added is 0.25 to 0....

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 wear-resistant steel and belongs to the technical field of metal smelting. The wear-resistant steel is prepared from the following components in percent by mass: 0.88-0.94% ofC, 0.20-0.30% of Si, 0.90-1.00% of Mn, 0.50-0.60% of Cr, 0.20-0.60% of W, 0.10-0.25% of V, 2.50-3.00% of Zr, 0.010-0.050% of Ti, 0.020-0.050% of Y, less than or equal to 0.025% of P, less than or equal to 0.025% of S, less than or equal to 0.25% of Cu and the balance of Fe and inevitable impurities. The wear-resistant steel has the beneficial effects that the problems of low strength and poor wear resistance of the existing low-carbon wear-resistant steel is solved; the wear-resistant steel is finer in crystal and fuller in internal density, and a grinding ball prepared by the wear-resistantsteel is larger in hardness and good in wear resistance.

Description

Technical field [0001] The invention relates to the technical field of metal smelting, more specifically, it relates to a wear-resistant steel and a production process thereof. Background technique [0002] Abrasion is one of the main forms of material damage, and the economic losses it causes are quite alarming. A large number of equipment used in metallurgical mines, agricultural machinery, coal and other industries mostly fail due to material wear and tear. my country consumes more than one million tons of steel due to abrasive wear every year. Therefore, in recent decades, the development and application of high-strength wear-resistant steel has developed rapidly. [0003] The Chinese invention patent with the authorized announcement number CN102560272B discloses a wear-resistant steel plate whose weight percentage composition is: C: 0.205-0.25%, Si: 0.20-1.00%, Mn: 1.0-1.5%, P≤0.015%, S ≤0.010%, Al: 0.02-0.04%, Ti: 0.01-0.03%, N≤0.006%, Ca≤0.005%, and at least one of Cr≤0.70...

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 Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/22C22C38/24C22C38/28C22C38/20C22C33/06C21D8/02C21C7/10C21C7/00C21C7/06
CPCC21C7/0056C21C7/06C21C7/10C21D8/0226C22C33/06C22C38/005C22C38/02C22C38/04C22C38/20C22C38/22C22C38/24C22C38/28Y02P10/20
Inventor 利强包石磊温国栋
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