Clay Crucible
Main production of fire assay crucible,Graphite crucible,Silicon carbide crucible.Also accept OEM and ODM.
Language
Main production of fire assay crucible,Graphite crucible,Silicon carbide crucible.Also accept OEM and ODM.
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.
A good cupel should be perfectly smooth on the inside, and of the right porosity. If it is too dense, the time of cupellation is prolonged and the temperature of cupellation has to be higher, thus increasing, the loss of silver. If the cupel is too porous it is said that there is danger of a greater loss, due to the ease with which small particles of alloy can pass into the cupel. The bowl of the cupel should be made to hold a weight of lead equal to the weight of the cupel.
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 | |
| MgO | ≥98.5% |
| Al2O3 | ≥1.2% |
| Working Temperature | 1000℃ |
| Specific Gravity | 2.35 |
| Porosity | 12%-15% |
| Lead Absorption | 70% |
| Item | Description | Item | Description |
6A | Weight: 50-55 grams | 8A | Weight: 80-86 g |
| Diameter: 40 mm | Diameter: 43-45 mm | ||
| Height: 25 mm | Height: 30-34 mm | ||
7A | Weight: 58-60 g | 9A | 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
Contact: Fanny
Tel: +86 13975373343
0086-0731-23253338
Email: admin@llxtl-china.com
WhatsApp：0086-13975373343
Company address: Shentan Industrial Zone, Liling, Hunan, 412200
Leave A Message
We are committed to producing the best quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Copyright © 2022 Liling xing tai long special ceramic co.,ltd All Rights Reserved.