Black Brown Special Pearl Sand For Lost Foam Molds Refractory Temperature ≥1820C

Product Specification

Special Pearl Sand For Lost Foam Molds With A Wide Range Of Applications

Brief Introduction Of Mining Machine Spare Parts

Pearl sand is a kind of non-quartz artificial sand, suitable for various casting methods. For example: V-method, VRH, lost foam, investment mold, general sand mold, resin sand, etc. It is suitable for the production of castings with various binders and metal materials. Not only can it significantly improve the quality of castings, but it is also easy to clean the sand and the sand mixing process is simple and convenient (in large steel casting plants, sand is used locally for single pieces and small batches, and a small amount of sand can be manually mixed). For most castings, coatings can be omitted, especially suitable for the production of castings with high quality requirements.

The product quality is reliable. It is widely used in various casting methods; It is a new type of raw sand for professional precision casting, coated sand and self-hardening sand, and is also used for shot peening. This product is made from high-quality bauxite raw materials through high-temperature calcination, electric melting and high-pressure aerosol cutting. Its cost performance is much better than that of zircon sand and ferrochrome sand. Especially, it has low expansion, no sintering, no powdering, no cracking, no sand adhesion, good regeneration performance, and improves the yield of castings.

The Characteristics Of Mining Machine Spare Parts

• It has a small coefficient of thermal expansion and its performance is comparable to that of zironite sand. When used to prepare molding sand, castings will not have expansion defects.
• The sand grains are spherical, have good fluidity and good air permeability.
• The surface is smooth and the structure is dense, enabling the adhesive to cover evenly.
• Zircon sand is a neutral material and can be used with both acidic and alkaline binders.
• It has good reuse and regeneration performance and high cost performance.
• Compared with chromite sand and zircon sand, its price is only 30-50% of that of zircon sand and chromite sand. Meanwhile, as the sand grains are spherical and have a small surface area, the addition amount of resin can be reduced by 30-50%, and the addition range of sodium silicate is ≤4%. It also reduces the casting defects caused by adhesives and improves the yield of castings.
• It has a high refractoriness and is prone to disintegration.
• The mullite phase of pearl sand is much higher than that of sintered products, and it has good refractoriness.
• It has a high thermal conductivity, good stability and does not crack.

Wide application range: Suitable for lost foam, coated sand, sodium silicate sand, resin sand, precision casting and polishing and cleaning of copper and aluminum parts.

Product parameters Of Mining Machine Spare Parts

(1)The main index of baozhu sand

(2)Comparison with zircon, chromite and silicon sands

(3)Size distribution specification table of Baozhu sand:

Product Display Of Mining Machine Spare Parts

Q&A

Q: Why we believe in luoyang zhongtai industries co., ltd:
A: 1. More than 30 years experience.
2.We are the leading professional supplier of mining machinery, construction machinery, machines casting and forged parts.
3. All products achieved ISO9901:2000 quality management certificate and CE, ROHS certificates.

Q:Delivery time?
A: Parts lead time 1-2months, machines 2-3months.

Q:Payment terms?
A: Accept payment type: T/T, L/C, Western union,Cash.
30% deposit when signed contract. Full payment paid before shipping