Quality standard for metallic silicon powder
Now the market is mixed, product quality is uneven, the market production and sales of metal silicon powder manufacturers are also numerous, each product quality is not the same, so, what is the quality standard of metal silicon powder? Let's talk about it.
1, the coke formed by the small sphere, porous structure such as spongy, the coke formed by the large small sphere, dense structure such as fiber or needle, its quality is better than the sponge coke. In the quality index, true density roughly represents this property, with high true density indicating good crystallinity.
2, consider the reaction coke containing powder coke and block coke particles, available coke relative content.
3, the content of sulfur and ash in oil coke. High sulfur coke will lead to products in the graphitization of gas expansion, resulting in cracks in carbon products. High ash content will hinder the crystallization of the structure and affect the performance of carbon products.
4, coke products under the sudden rise to high temperature or cooling from high temperature when the thermal impact of rupture performance.
We can judge the quality of metal silicon powder from the above aspects. Of course, when determining metal silicon powder, we should also consider oil content, transparency, color, gloss, thickness, elasticity, chemical solvent, medium resistance, impact resistance, scratch resistance, wear resistance and so on.
