Sharing on the Application of pyrite in abrasive molds
Release time: 2025-11-03
Pyrite (mainly composed of FeS₂) is used as a core low-cost wear-resistant aggregate/auxiliary abrasive in abrasive molds, suitable for low-precision grinding scenarios, and has outstanding cost performance.
Filling of bonded grinding tools: As an auxiliary component of main abrasives such as corundum and silicon carbide, it is mixed with resin, ceramic or rubber binders to make grinding wheels and grinding heads. • Coated abrasive tool enhancement: Added to the coating of sandpaper and sandcloth to improve the wear resistance and cutting force of the abrasive layer. • Polishing tool base material: Used for rough grinding and polishing molds of low-precision workpieces, reducing material costs.
Moderate hardness: Mohs hardness 6-7, with both cutting ability and toughness, and not prone to brittle fracture.
Low cost: Compared with high-end abrasives such as corundum and diamond, the raw materials are readily available and the processing cost is low.
Good wear resistance: The crystal structure of FeS₂ is stable, and its wear resistance is superior to that of common and inexpensive fillers such as quartz sand.
Limited Precision: The hardness and cutting efficiency are inferior to those of corundum and silicon carbide, making it unsuitable for processing high-precision and high-hardness workpieces.
Average Heat Resistance: It is prone to oxidation and decomposition at high temperatures, and thus is not suitable for high-speed grinding or molds in high-temperature conditions.
