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Products
  • Name: Pottery Clay Powder
  • No.: JH-702
  • Time: 2017-03-07
  • Views : 24

Pottery clay Powder

(I) Pottery clay Powder Chemical Composition

 

SiO2            

62  --  70%

Al2O3                   

17  --  23%

Fe2O3                  

2.5 --  5.3%

Cao+Mgo      

1   --  2%

K2O+Na2O               

2   --  3%

 

(II) Pottery clay Powder Refractoriness

1508℃- - 1545℃

(III) Pottery clay Powder Colloid Index 

According to the sample specific test of colloid index of bentonite in the standard of No.JN438 “Clay Sample” issued by the 1stMinistry of Machine-Building Industry, the colloid index is 40%. 

(IV) 
Pottery clay Powder Green Compression Strength

According to the sample specific test of colloid index of bentonite in the standard of No.JN438 “Clay Sample” issued by the 1stMinistry of Machine-Building Industry, the green compression strength is ≥0.5kg/cm2

(IV)
Pottery clay Powder Granularity 
300-800 mesh 

(VI) Others
① It is of high contents of K and Na, low contents of Ca and Mg. According to the experiment, add 
Pottery clay Powder as preparing activity sandsidy. 
As Na2CO3 is 2-3% of argil weight, it has the highest wet strength. It can save amount of Na2CO3.
②Crude ore of this product is earthy mineral, easy to crush and of fine granularity; due to low unit weight and large volume, as preparing molding sand, 
Pottery clay is easily to spread powder argil evenly on the sand to increase wet strength of sand. In usage, please make experiment to master unit weight if weighing it by container instead of scale, otherwise, less argil affects the strength. 
③ Swelling ratio ≥ 10

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