The standards for chromite sands mainly include the following aspects:
1. Chemical composition: The chemical composition of chromite sand is mainly iron and chromium. Chromite sand can be divided into different grades depending on its chemical composition.
2. Particle size: The particle size of chromite sand has a great influence on its use effect. Different particle sizes are required for different uses, so chromite sand needs to be processed such as crushing and screening.
3. Density: The higher the density of chromite sand, the better its quality. Generally speaking, the density of chromite sand is between 3.96~4.03g/cm³.
4. Hardness: Chromite sand has high hardness and can resist the intrusion of most metals, so it has good wear resistance.
5. Purity: High-purity chromite sand can reduce the impact on the performance of foundry sand and improve the quality of the product.
6. High temperature resistance: Chromite sand has good high temperature resistance and can maintain its physical properties at high temperatures. It is suitable for casting, smelting and other fields.
7. Environmental protection standards: Chromite sand should comply with national environmental protection standards, contain no harmful substances, and will not have a negative impact on the environment.
