200 Mesh Chamotte Mullite Powder For Lost Wax Casting / Refractory Industry / Foundry Industry

1. Mullite Sand Introduction

Sintered mullite sand and flour is widely used in investment casting, gypsum filling V method and vacuum suction casting, as well as large, medium and small steel casting, copper casting, furnace lining refractories, as well as water glass, refractory products, concrete materials, etc.

2. Mullite Sand Specifications

3. Mullite Sand General advantages

Ø Easy out of shell.

Ø No deformation and No reduced scale.

Ø Good brightness and Good finish.

3. Mullite Sand Characteristics

Ø High refractoriness.

Ø Aluminum content high, the iron content low.

Ø High volume density.

Ø Thermal expansion coefficients of small.

Ø Physicochemical stability.

Ø Fully calcined and Dust content low

Ø The specification standards.

4. Mullite Sand Particle sizes Available

Ø Size of sand: 8-16,16-30,30-60,30-80,60-80,80-120 (mesh):Used for investment casting.

Ø Size of powder: -200mesh,-270mesh,-325mesh: Used for investment casting and refractories.

Ø Size of particle: 0-1mm,1-3mm,3-5mm,5-8mm,8-15mm,0-5mm,0-50mm:Used for refractories.

5. Mullite Sand Applications

The product can be used for complex casting of carbon steel, stainless steel, heat-resistant steel.
1.Grain shape of the foundry sand is close to the true round with smooth surface, good fluidity and fillibility, easy to be filled ,it can get good formability and strength of mold.
2.Compounding moulding sand with foundry sand, casting will not have defects of expansion cause it has low thermal expansion rate. And producing castings with foundry sand will have high accuracy ,less fracture and surface defects, what's more it can also improve the yield of casting.