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Orb sand

[Product Specifications]: 6-270 mesh

[Production capacity]: 20,000 tons

[Scope of application]: Baozhu sand is widely used in various casting methods (melt mold, solid mold, lost mold, etc.); it is a new type of foundry sand for professional precision casting, coated sand, and self-hardening sand: also used for shot peening ( Aluminum, copper, steel castings)

【product description】:

Ruishi Group (Baozhu Sand Branch Factory) specializes in the production of baozhu sand, also known as (cast baosha, fused ceramsite, ceramsite sand). It is smelted from high-quality bauxite materials by electric arc furnace, with an annual output of 18000. Tons of precious pearl sand are reasonably priced, and the cost performance is much better than zircon sand, chromite sand; especially low expansion, no sintering, no chalking, no cracking, no sticky sand (eliminates the negative impact of casting quality), Good recycling performance and improved casting yield. ...

18603798888 Sales Hotline: 18603798888

咨询产品报价 疑难解答

Ruishi Group (Baozhu Sand Branch Factory) specializes in the production of baozhu sand, also known as (cast baosha, fused ceramsite, ceramsite sand). It is smelted from high-quality bauxite materials by electric arc furnace, with an annual output of 18000. Tons of precious pearl sand are reasonably priced, and the cost performance is much better than zircon sand, chromite sand; especially low expansion, no sintering, no chalking, no cracking, no sticky sand (eliminates the negative impact of casting quality), Good recycling performance and improved casting yield.

Application range

Baozhu sand is widely used in various casting methods (melting, solid, lost foam, etc.); it is a new type of casting sand for professional precision casting, coated sand, and self-hardening sand: also used for shot peening (aluminum, copper, steel casting).

Production Process

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Process flow of baozhu sand: 1. Calcination 2. Electric melting 3. Granulation 4. Screening

Technical Parameters

Chemical Index of Razor Pearl Sand:
ingredient Al2O3 SiO2 Fe2O3 TiO2
content 65-85% 12-25% ≤5% 3-4.5%

Physical index of sharp stone precious pearl sand:

Grain shape: spherical Coefficient of expansion: (20-1000 ℃) 6 × 10-6 / ℃
colour: Black-brown granularity: 6-270 mesh (φ0.053-3.36mm)
Refractory temperature: ≥ 1800 ℃ Al2O3: 65-85%
Bulk Specific Gravity: 1.95 -2.05g / cm³ SiO2: 12-25%
True density: 3.4g / cm³ TiO2: 3-4.5%
Thermal conductivity: (1200 ℃) 5.27W / M · K PH value: 7-8

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