Cupels should not crack when heated in the muffle and should be so strong that they will not break when handled with the tongs. Good cupels give, a slight metallic ring when struck together after air-drying. It is best to heat cupels slowly in the muffle as this lessens the chance of their cracking.
1. Made of Magnesite
2. Used for smelting and assaying
3. High thermal shock resistance
4. Magnesia: ≥95%
5. Silica, Silicon dioxide: 0-5%
6. Property: high refractoriness(1100 centigrade degrees),rapid absorption(70%),and recovery rate of 97%-98.5%,easy to use, without milling
High refractoriness (1100 centigrade degree), 70% rapid absorption and recovery rate of 97-98.5%. Without milling.
|Typical Chemical Analysis|
|Weight: 50-55 grams|
|Weight: 80-86 g|
|Diameter: 40 mm||Diameter: 43-45 mm|
|Height: 25 mm||Height: 30-34 mm|
|Weight: 58-60 g|
|Weight: 120-123 g|
|Diameter: 40 mm||Diameter: 50-52 mm|
|Height: 28-30 mm||Height: 30-34 mm|
|Note :We can provide you the product by you desire.|
If you have another questions,please feel free to contact us.
Liling Xing Tai Long Special Ceramic Co.,Ltd
Tel: +86 13975373343
Company address: Shentan Industrial Zone, Liling, Hunan, 412200
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