High-Purity Graphite Oil Groove for Melting and Casting Precious Metals

• Customization: Available
• Application Area: Melting and Casting
• Feature: High-Thermal Conductivity
• Model NO.: GM-1
• Manufacturing Technique: Vacuum Pressure Infiltration
• Density: 1.85 G/Cm³
• Hardness (Shore): 65
• Compressive Strength: 115 MPa
• Flexural Strength: 51 MPa
• Application Temperature: ≤ 2300°C
• Fixed Carbon Content: 99.95%
• Oversize Particle Size: 0.05%
• Undersize Particle Size: 99.95%
• Ash Content: 0.05%
• Transport Package: Cartons in Wooden Cases
• Specification: Customized
• Trademark: L. T
• Origin: Cn
• HS Code: 3801909000
• Production Capacity: 250000/Month

Product Description

Product Description

High-purity graphite oil groove is a specialized mold or container made of high-purity graphite, primarily used for melting and casting precious metals (such as gold, silver, and copper). Due to its excellent high-temperature resistance, thermal conductivity, and easy demolding properties, it is widely used in jewelry manufacturing, metalworking, and metallurgy.

The core function of graphite oil groove is to serve as a mold for melting metal, and it is particularly suitable for the ingot casting of precious metals such as gold and silver. Made of high-purity graphite (typically with a fixed carbon content exceeding 99.9%), it maintains stability at high temperatures, ensuring uniform solidification of the molten metal and easy demolding, thereby improving casting precision and efficiency.
 

 

Applications

1. Industrial Production
In the metallurgical industry, graphite oil baths are commonly used in metal smelting (such as precious metal purification and gold and silver bar casting). Their high thermal conductivity optimizes melting efficiency and prevents metal sticking.

1)Jewelry Manufacturing: Used in smelting gold and silver bars or jewelry, ensuring a smooth surface and uniform crystallization of the cast parts.

2)Metal Processing: Used as molds to reduce scrap in the continuous casting of non-ferrous metals such as copper and aluminum alloys.

3)Industrial Melting: Suitable for use in melting furnaces and vacuum furnaces, supporting customized shapes (such as handles and multi-hole designs) to meet diverse needs.

2. Chemical and Energy
1)Lithium Battery Material Sintering: Used in solid-state reactions of lithium cobalt oxide and ternary materials, ensuring a temperature gradient within the furnace of ≤5°C and improving material crystallinity consistency.

2)Rare Metal Smelting: Suitable for vacuum melting or powder metallurgy processes of refractory metals such as tungsten, molybdenum, and titanium.

3. Special Processes
1)High-Temperature Reaction Experiments: Providing a stable reaction environment for experiments such as melting point determination and combustion analysis.

2)Machinery Lubrication: Storing high-temperature lubricating oil to ensure stable equipment operation.

4. Extended Applications
Graphite oil tanks can also be used to lubricate non-metallic bearings (such as carbon-graphite materials). Their self-lubricating properties excel in oil-free or high-temperature environments.

Function

 

1. High-Temperature Resistance: Withstands temperatures exceeding 2000°C, suitable for use in extreme environments such as melting furnaces.

2. Thermal and Electrical Conductivity: Natural graphite's thermal conductivity accelerates metal solidification, improving casting efficiency.

3. Easy Mold Release and Anti-Stick: Highly smooth surface reduces metal sticking and ensures seamless mold release.

4. Chemical Stability: Corrosion and oxidation resistance extend service life.
 

Characteristics

Density	1.85 g/cm³
Hardness (Shore)	65
Compressive Strength	115 MPa
Flexural Strength	51 MPa
Application Temperature	≤ 2300°C
Fixed Carbon Content	99.95%
Oversize Particle Size	0.05%
Undersize Particle Size	99.95%
Ash Content	0.05%

 

Design and Customization

Graphite oil baths are typically customized based on specific needs. Common designs include:

1. Handle-mounted structure: for easy handling and transport.

2. Multi-hole or single-hole baths: for batch casting, such as gold and silver bar molds.

3. High density and high purity: A fixed carbon content of over 99.9% ensures high smelting quality.
 

 

Precautions

1. Regularly check the oil level: Maintain an adequate oil level to prevent lubrication failure due to oil starvation.

2. Ensure tightness: Prevent impurities from entering the oil tank, which could affect lubrication or accelerate wear.
3. Cleaning and Maintenance: Before first use, clean the surface with alcohol to remove machining residue.

4. High-Temperature Environments: If operating at temperatures exceeding 350°C for extended periods or in highly corrosive environments, consult the manufacturer to determine whether special treatment is required (e.g., using a high-temperature-resistant lubricant).

5. Extreme Loads: During high-load operations, enhanced lubrication is required to reduce mechanical wear.
6. Lubricant Selection: Graphite-based composite lubricants are recommended, as they offer high-temperature resistance, strong adhesion, and are suitable for processes such as warm forging.