Ceramsite Sand Refractory Raw Material

Ceramsite Sand Refractory Raw Material

Ceramsite Sand

Product Brief Introduction

Baozhu sand (casting sand) high temperature (2050), easy to collapse, low amount of sodium silicate (35-4%), spherical particle shape (angular coefficient ≤11), large thermal conductivity, high temperature stability, no cracking, acid and alkali erosion resistance. Castings have high surface finish and good serviceability. Its comprehensive cost performance far exceeds that of chrome sand, which is a substitute for chrome sand. It is suitable for carbon steel, alloy steel (heat-resistant steel, wear-resistant steel, corrosion-resistant steel, acid, alkaline steel, etc.), is the ideal core sand, surface sand.

Product Feature

1. Dense spherical particle shape: the particle shape is spherical, the surface is smooth and the surface area is small, and the fluidity and filling are excellent. Therefore, it can achieve good mold strength and high permeability while significantly reducing the amount of binder used compared with other molding sands. It also has excellent collapsibility.

2. Low thermal expansion rate: the thermal expansion rate is lower than other casting sand. Therefore, the dimensional precision of the production of castings is high, the cracks and defects are less, and the finished product rate of castings is high.

3. Good crushing resistance: the volume of Baozhu sand is dense, the strength is high, and the repeated recycling is rarely broken, which greatly improves the recycling rate of molding sand, reduces the discharge of waste sand, and is conducive to environmental protection.

4. High refractoriness: the main component is aluminum oxide, PH value is neutral, is Lv silicon refractory material, fire resistance is very good, can meet a variety of metal and alloy casting requirements.

5. Small packing density: the packing density is less than that of chromite ore, thus reducing the cost of using high-quality molding sand.

Product Performance

1, Baozhu sand is a neutral material, it is resistant to high temperature, easy to collapse, dense structure, high thermal conductivity, high temperature stability, no cracking, acid resistance, alkali erosion resistance.

2. Acidic and alkaline binders can be used, the amount of resin added can be reduced by 30%-50%, and the amount of water glass added is less than 4%.

3, with good usability, cost performance is far more than ferrochrome sand, zircon sand, according to the volume ratio of pricing, only 50% of chrome sand, zircon sand 30%.

4, it is widely used in water glass sand, resin sand, precision casting, lost mold casting and copper, aluminum parts polishing and cleaning.