Home > Products > Graphite crucible > Refractory Crucible Crucible for Melting Gold Made in China
Refractory Crucible Crucible for Melting Gold Made in China
- Qingdao
- T/T
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Product Details
| Type | High Strength | Application | melting gold or silver | |
| Height | 20mm-400mm | Composition | High Pure | |
| Top Diameter | 30mm-600mm | Bottom Diameter | 30mm-600mm | |
| Place of Origin | Shandong, China | Brand Name | NEWLAND, Qingdao Newland Graphite | |
| Model Number | XDD-1, Newland |
Product Description
graphite crucible for melting gold
Application:
Graphite Crucible for melting metal , such as Gold, Silver,Aluminum,Lead , Sterling Silver, Tin & Zinc.
Note: The product is customizable.
Features of Graphite Crucible:
1. Good thermal stability: Special formula targeting the shock heating and shock cooling use conditions of graphite crucible
2. Good corrosion resistance and impact resistance performance can ensure the reliability of product quality.
3. Good resistance to strong acid and alkali.
4. Good thermal conductivity can greatly shorten the melting time and save energy.
5. The ash content of graphite crucible is less than 300pp, which can ensure that precious metal is free from pollution during smelting.
Pay attention to the following notes while using the crucible:
1. Graphite crucible cannot be exposed in moisture, and must be placed in indoor dry place or wooden shelf. Maintain ventilated. Moisture is strictly prohibited. Damped crucible is likely to crack.
2. Each crucible, especially damped ones, must be preheated and roasted in drying equipment or next to a ground furnace before use. The roasting temperature should start from a low temperature of 100°C below. Roast it to 150°C at a speed of not higher than 30°C per hour. Preserve the heat for about 8 hours and then dry it. The crucible dried next to a ground furnace should be placed at least for one shift, and often turned to change direction, till workers feel the internal wall of crucible is hot.
3. The melting time for the first time should be at least twice of the normal melting time, in order to avoid cracking inside the crucible due to heating up too fast, or even cracking immediately when the fire sets on.
4. Handle with care. Falling or shaking is strictly forbidden in order to present cracking. Crucible should be placed below the mouth of furnace to prevent the furnace lid abrading the upper edge of the crucible and thus affecting the capacity.
5. Pour out the remaining cold metals inside the crucible after use, and then add new materials. Carefully and gently add new materials into the crucible. Feed materials according to the capacity of crucible. It is not allowed to feed too many materials, in order to prevent crucible from swelling or bursting.
6. Knock gently to remove slags and cokes on the internal and external wall of the crucible. Avoid damaging the crucible body.
7. In the melting process, do not add chloride solvents in order not to corrode the crucible. For the furnace that uses oil and coal gas as fuels, the oil wind should not reach one part of the crucible directly. Turn around the crucible from time to time, in order to avoid local damage.
8. Clamps and other discharging tools should comply with the shape of the crucible. During furnace discharging, remove the cokes on the external wall of the crucible, and lower the furnace temperature; do not discharge at high temperature after stopping blasting. Clamp the upper and middle parts instead of the top of the crucible in order not to damage the crucible. Graphite crucible is used mainly to melt gold, silver and other precious metals.
Crucible photo:
Company info:
Qingdao Newland graphite crucible, refined from good quality graphite, is characterized by good thermal conductivity, high temperature resistance, small thermal expansion coefficient in high temperature environment, shock heating and shock cooling resistance, acid and alkali resistance, and excellent chemical stability. With many varieties and full specifications, the product is widely used in metallurgy, machinery, chemical, foundry and other industrial sectors, and has been most widely applied in the smelting of alloy tool steel, non-ferrous metals and alloys.
CONTACT US:
Contact Person:Mr.Xianhao Shi
Tel:86-053282418888
Trade Manager:qdxindadi
Contact Us
- Qingdao Newland Graphite Products Co., Ltd.
- Contact nameXianhao Shi Chat Now
- Phone86-532-82418888
- Addressthe town of wubei,the city of Laixi,Qingdao,China, Qingdao, Shandong
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