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About us:
As one of the top manufactory and suppliers of Olivine Sand for Refractory and Foundry industry in China, Yichang Kebo Refractories Co, Ltd is located in one of the largest base of olivine resources in China—Yichang. With 500,000,000 tons olivine reserve in our city, We can supply Olivine in ore, sand and powder of high quality.
We have over 100 employees and our capacity is 100000 tons per year and we are currently exporting 40% of our products worldwide. Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Up to now, we have gained a global sales network reaching Japan, the USA, South Korea, South Asia, etc.
About the product:
Application
1. Olive sand is now widely used as coating powder for its high fusion point, low uniform thermal expansion, and its remarkable ability to resist fracture from thermal shock and good ventilation.
2. It can be applied to high manganese steel and other non-ferrous alloy,refractory industries, glass industries, cement, foundry, construction for coating application.
Features
Compared with Zircon sand, brown sapphire, quartzes, olivine product has no phase transition from room temperature to the 1900 melting point, it has stable thermal property, good fragility, strong adhesive force, it can produce a smoother surface.This product has no radiation or damage of free SiO2 powder, so it can eliminate the possibility of anthracosis, it is environmental friendly.The coating has good density and permiability, the casting will not adhere to the sand, it is easy to clean up afterwards, so labor cost will be reduced.Properties:
item | MgO | SiO2 | Fe2O3 | Al2O3 | CaO | Refractoriness |
Raw olivine | 39-42% | 38%-40% | 7%-9% | 0.5%-1% | 0.2%-0.5% | ≥1710 °C |
Calcined olivine | 46-50% | 40-42% | 7%-9% | 0.5%-1% | 0.2%-0.5% | ≥1750 °C |