Thermoplastic upsetting-forming method for abrasive ball

A thermoplastic and upsetting technology, applied in other household appliances, household appliances, household components, etc., can solve the problems of difficulty in expanding production scale, reducing working life, large investment in production lines, etc., and improving the as-cast structure and as-cast structure characteristics. Change, distribute evenly and reasonably
CN1214878CInactive Publication Date: 2005-08-17TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2005-08-17
Estimated Expiration
Not applicable ยท inactive patent
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Abstract

The present invention discloses a thermoplastic upsetting formation process of abrasive ball as one kind of grinding material. Into iron-base material, Cr, C, Mo, V, Mn, Si, RE and other alloy elements are added to form alloy material, which are passed through smelting, casting, cutting, thermoplastic upsetting and forging formation, post-forging treatment to produce the various kinds of abrasive ball. The abrasive ball product has diameter 30-140 mm, ellipticity less than 3mm, impact toughness over 10 joule / sq cm, and breaking rate less than 0.35%. It is used widely in grinding Fe, Al, Cu and other metal ore powder as well as coal, quartz, various ceramic powder and other non-metal ore powder with microhardness lower than 1000 Hv.
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Description

technical field

[0001] The invention belongs to the scope of grinding material preparation, in particular to a thermoplastic upsetting-forming method of grinding balls. Background technique

[0002] There are many kinds of grinding balls, and their chemical composition is an important factor to determine their performance. Therefore, they are divided into cast or forged grinding balls made of iron with carbon, silicon, manganese and other elements. The interior of the manganese steel grinding ball mainly composed of high manganese steel is mainly Fe-c type carbide, which has low microhardness and poor wear resistance; holes, segregation and shape errors are inevitable during casting, and it is difficult to achieve broken balls. The requirements for using the two indicators of rate and out-of-roundness. The most popular high-chromium cast iron wear-resistant material is suitable for making industrial ore powder and other industries with impact wear parts, but its impact toug...

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
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