Additive raw material composition and additive for superhard material product, preparation method of the additive, composite binding agent and superhard material product, self-sharpening diamond grinding wheel and preparation method of the same

US11179828B2 · kind B2 · utility

Assignee

• ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES & GRIND · CN

Inventors

• Ning YAN · Beijing, CN
• Xin Han · Zhangdian District, CN
• Junkai Niu · Zhengzhou, CN
• Bo Xing · Zhengzhou, CN

Key dates

• Filing date: Jul 24, 2019
• Grant date: Nov 23, 2021
• Expiry date: Oct 3, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/45
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed are an additive raw material composition and an additive for superhard material product, a composite binding agent, a superhard material product, a self-sharpening diamond grinding wheel and a method for manufacturing the same. The raw material composition consisting of components in following mass percentage: Bi2O3 25%˜40%, B2O3 25%˜40%, ZnO 5%˜25%, SiO2 2%˜10%, Al2O3 2%˜10%, Na2CO3 1%˜5%, Li2CO3 1%˜5%, MgCO3 0%˜5%, and CaF2 1%˜5%. The composite binding agent is prepared from the additive and a metal composite binding agent. The self-sharpening diamond grinding wheel prepared from the composite binding agent has high self-sharpness, high strength, and fine texture, is uniformly consumed during the grinding process, does not need to be trimmed during the process of being used, and maintains good grinding force all the time, fundamentally solving the problems of long trimming time and high trimming cost of the diamond grinding wheel (FIG. 1).