Rolled high-wearable steel ball and production method thereof

A high wear-resistant, steel ball technology, applied in the direction of manufacturing tools, furnace types, furnaces, etc., can solve the problems of short service life and achieve the effects of long service life, low breakage rate and high volume hardness

Inactive Publication Date: 2017-02-22
邯郸市伟业地热开发有限公司
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the grinding balls widely used at home and abroad are mostly high-carbon and high-alloy casting grinding balls (such as chromium-based high-alloy cast iron, such as: Cr8, Cr12, Cr15, Cr18, Cr24, Cr26; low-chromium cast iron, such

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

Example Embodiment

[0017] Rolling high wear-resistant steel balls, the composition of the steel ingot for rolling high wear-resistant steel balls is in weight percentage, in addition to Fe and inevitable impurities, it also contains C: 0.80~0.90%, Si: 0.2~0.4%, Mn: 0.80 ~1.0%, Ni: ≤0.25%, P: ≤0.035%, S: ≤0.035%, Cr: 0.70-0.90%, Mo: ≤0.015%; Cu: ≤0.25%.

[0018] 2. High wear-resistant steel ball rolling method, the process steps are:

[0019] C. Steel ingots obtained by smelting and continuous casting;

[0020] D. Qualified round steel obtained by continuous rolling and slow cooling treatment;

[0021] C. Round steel cutting material;

[0022] D. Roll forming: heat to 1150~1200℃, start rolling, and finish rolling temperature ≥850℃ to obtain shaped steel balls;

[0023] E. Quenching treatment, the steel ball temperature is 800~860℃, and then quenched in the quenching pool; quenching and cooling to ≤ 80℃.

[0024] F. Tempering treatment, tempering at a temperature of 160-220℃ to obtain qualified steel balls. ...

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 a rolled high-wearable steel ball. A steel ingot of the rolled high-wearable steel ball comprises, by weight, 0.80%-0.90% of C, 0.2%-0.4% of Si, 0.80%-1.0% of Mn, not larger than 0.25% of Ni, not larger than 0.035% of P, not larger than 0.035% of S, 0.70%-0.90% of Cr, not larger than 0.015% of Mo, not larger than 0.25% of Cu and the balance Fe and inevitable impurities. The rolled high-wearable steel ball is low in damage percentage (the damage percentage is 0.5% or zero), high in size hardness (HRC is larger than or equal to 58) and long in service life.

Description

technical field [0001] The invention relates to a grinding ball, in particular to a rolled high wear-resistant steel ball and a production method thereof. Background technique [0002] At present, the grinding balls widely used at home and abroad are mostly high-carbon and high-alloy casting grinding balls (such as chromium-based high-alloy cast iron, such as: Cr8, Cr12, Cr15, Cr18, Cr24, Cr26; low-chromium cast iron, such as: Cr2, also There are some low-end carbon steel and alloy forged grinding balls, the process is simple, and the breakage rate is as high as 3-10%, especially the large-diameter grinding balls (diameter greater than 110mm), the service life is short. Therefore, it is necessary to study a high volume hardness (HRC ≥58), non-breakable, long service life rolled high wear-resistant steel balls and production methods thereof; it is a technical problem that needs to be solved at present. Contents of the invention [0003] The technical problem to be solved b...

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): C22C38/02C22C38/04C22C38/08C22C38/18C22C38/12C22C38/16C21D1/18C21D8/00C21D9/36
Inventor 冯红喜李海亮阴文行单俊丽李会征冯海龙
Owner 邯郸市伟业地热开发有限公司
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