Precision casting sand: 16-30,30-60mesh Precision casting flour: 200M-325mesh Mainly used for precision casting

   Calcined kaolinite (CK) for precision casting   

Characteristics of calcined kaolinite (CK) for precision casting:1. Calcined kaolinite has high refractoriness, high volume density,  fully calcined.  

2. Aluminum content high, the iron content low; dust content low.

3. Thermal expansion coefficients of small.

4. Physicochemical stability.The specification standards.

 Advantages of calcined kaolinite (CK) for precision casting: 1. Easy out of shell.

 2. No deformation.

 3. No reduced scale.

 4. Good brightness, Good finish .

 5. Product rate is high.

Physical and chemical index of calcined kaolinite (CK) for precision casting::

Physical and chemical index
Item/ Grade	Index
	CSM-45	CSM-43
Al2O3%	45-46	43-45
SiO2%	51-53	51-53
Fe2O3%	≤1.20	≤1.20-≤1.30
CaO+MgO2 %	0.6	0.8
K2O+Na2O %	0.2	0.3
TiO2 %	0.08	0.1
Bulk density g/cm³(min)	2.6	2.5
Refractoriness °C(min)	1750	1750
Dustiness %(min)	0.1	0.1

 Size of calcined kaolinite (CK) for precision casting:Size of Precision casting sand : 8-16,16-30,30-60, 30-80 ,60-80,80-120 (mesh)Size of  Precision casting flour: -200,-250,-270,-325 (mesh)

Pictures of calcined kaolinite (CK) for precision casting: 

Calcined kaolinite (CK) for precision casting