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ProductsGoldbao grinding wheels are a major type of abrasive tool used in grinding. Grinding wheels are porous bodies made by adding a binder to an abrasive, followed by pressing, drying, and firing. Due to differences in abrasives, binders, and manufacturing processes, grinding wheels vary greatly in their properties, thus significantly impacting grinding quality, productivity, and economy.
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BlogsOur company's employees will continue to strive for excellence and promise our valued users that we will deliver superior grinding quality and cost-effectiveness with safe and reliable quality at competitive prices. We look forward to creating a brilliant future together with you!!
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AboutOur company is a high-tech enterprise integrating R&D, production, sales, and service. It covers an area of 45,000 square meters and has 200 employees, including 10 R&D personnel. In recent years, with the development of the company, we have continuously improved our quality and hardware facilities, and have successively introduced advanced equipment from home and abroad, laying a solid foundation for ensuring product quality. Currently, the company also has the right to operate import and export independently.
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The superiority of pearl sand in precision manufacturing
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Release time：
Sep 28,2021
Bead sand has also become fused ceramic sand. Its raw material is high-quality alumina, which is made by electric arc furnace smelting. Bead sand has a wide range of uses and can be used in various casting methods such as investment casting, solid molding, and evaporative pattern casting. It is a new type of casting sand for professional precision casting and coated sand, and is also used in shot blasting of aluminum, copper, and steel castings.
The cost-effectiveness of bead sand is superior to zircon sand and chromite sand. It has a low coefficient of expansion, does not sinter, does not pulverize, does not crack, does not stick to sand, and has good regeneration performance, with particularly obvious advantages.
1. Smaller coefficient of thermal expansion. Molding sand made with it as a raw material will not cause expansion defects in castings, and its performance can even be comparable to zircon sand.
2. Spherical sand grains have good fluidity, are easy to compact, and have good air permeability.
3. It has a smooth surface and a dense structure, so the binder can be evenly coated on the surface.
4. As a neutral material, bead sand is suitable for acid and alkali binders.
5. It can be regenerated and reused, and has a high cost-effectiveness.
The price of bead sand is only 30-50% of that of zircon sand and chromite sand. Because it is spherical sand grains with a small surface area, the amount of resin added can also be reduced by 30-50%, and the amount of water glass added is less than 4%. It can also improve the yield of castings.
Bead sand has a wide range of applications, such as water glass sand, resin sand, precision casting, and polishing and cleaning of copper and aluminum parts.
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