Black silicon carbide F220 F240 used for abrasive filament

Abrasive brushes made from SiC abrasive filament are suitable for grinding and cleaning difficult-to-clean tubular or porous metal castings. The substrate of abrasive brush wire is nano-modified nylon. It is elastic and gets bending properties. Black silicon carbide is the main material. Mixing SiC abrasive material and Nylon together to produce nylon abrasive filament. Then adopt an abrasive filament to produce an abrasive filament disc or brush. The mostly used grits are black silicon carbide F36-F220 abrasive grain and black silicon carbide powder F240-F400.

Black silicon carbide is an artificially produced abrasive. The quality can be controlled through artificial processes and technology.

1. Raw material. The silicon carbide produced by petroleum coke is gray in color, with greater density and good toughness.

2. Fusing process. Silicon carbide with sufficient smelting and fine material selection has better purity and physical and chemical properties.

3. Crushing and screening processes. The content of silicon carbide magnetic substances produced by airflow milling is low. Acid washing and water washing can further remove magnetic substances and impurities. In the meanwhile, the particles are uniform. The shaped silicon carbide abrasive has a high stacking density and is more suitable for producing abrasive products.

The black silicon carbide for abrasive filament should adopt high-quality silicon carbide as the raw material. It helps improve the grinding ability of the brush. It is also advantageous for the fusion with the nylon matrix.