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Zhushu Group, Yupingshan Village, Yangsan Office, Liling, Hunan, China (Mainland)
Rui Tai offer you a wide range of production facilities like extrusion, injection moulding, pressing and casting. Depending on product geometry and quantities, we will choose the suitable technique for your products.
For the final finishing of the parts we use CNC machining centres, equipped with diamond tools in order to meet high accuracies.
Ceramic materials offer unprecedented possibilities for many industries, especially when products
and components with extreme material properties are required. ceramic material including Aluminium
Oxide, Zirconium Oxide, Silicon Carbide, Boron Carbide, Silicon Nitride and Boron Nitride.
Rui Tai products widely used in Aerospace, Research, Food Processing, Fluid Handling, Scientific, Automotive, Defense, Thermal Processing, Electrical, Process Control, Textile & Wire, Pulp & Paper, Mechanical, Glass Processing, Mineral Processing as well as smaller niche markets.
Melting Copper Gold Silver 1kg High Purity Graphite Crucible
Melting Copper Gold Silver 1kg High Purity Graphite Crucible has good hot-resistance capacity, notice that its working lifetime is defined by metal-melting times.
Melting Copper Gold Silver 1kg High Purity Graphite Crucible is applicable to all kinds of furnaces and working environment, possessing outstanding performance in heat conduction and anti-cautery.
Melting Copper Gold Silver 1kg High Purity Graphite Crucible Features:
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.
For the Melting Copper Gold Silver 1kg High Purity Graphite Crucible, pls kindly noted different content, different performance.
Bulk Density | g/cc | 1.60-1.88 |
Specific Resistance | μΩ.m | 6.0-15.0 |
Compressive Strength | MPa | 30-80 |
Bending Strength | MPa | 20-45 |
Shore hardness |
| 30-70 |
C.T.E.(100-600°C) | x10-6 /°C | 2.5-5.5 |
Ash | % | 0.01-0.2 |
Maximum Grain Size | mm | 0.044-0 |
The Photos Of Melting Copper Gold Silver 1kg High Purity Graphite Crucible
The Packing Of Melting Copper Gold Silver 1kg High Purity Graphite Crucible
Control from production process:
We strictly follow the international standard in production, all process is supervised under inspection department.
Control from inspection:
•We have QC persons in every department, to ensure all components meet the quality demand.
The Service We Provide - We Take Care Of Your Order
Punctual delivery time:
•We put your order into our tight production schedule, ensure your punctual delivery time.
•Update the production progress for customers in time.
•Shipping notice/ insurance to you as soon as your order is shipped.
After sales service:
•We respect your feed back after receive the goods.
•We handle your complain within 24 hours.
Professional sales:
•We value every inquiry sent to us, ensure quick competitive offer.
•We are a sales team, with all technical support from engineer team.
Melting Copper Gold Silver 1kg High Purity Graphite Crucible
