Graphite Ring

Your Professional Graphite Ring Supplier

Henan Daking Import and Export Co., Ltd. (Henan Daking for short) is one of China's professional production, research and development, sales of graphite mold manufacturers. The company is committed to providing customers with high quality graphite raw materials and precision graphite products processing. Henan Daking is willing to cooperate wholeheartedly with new and old customers at home and abroad with superb technology, high quality products and sincere service, to create a better tomorrow hand in hand.

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Why Choose Us

01.

Quality products

The company is committed to providing customers with high quality graphite raw materials and precision graphite products processing.

02.

Rich experience

We have years of industry experience and a team of experienced engineers and technicians to ensure consistent precision and high quality of our products.

03.

Reliable service

Our team is committed to providing reliable and consistent service, ensuring that you receive high-quality products and customer support from us every time.

04.

One-stop solution

We are one of China's professional production, research and development, sales of graphite mold manufacturers.

Product Description

Purity:	≥99.9%
Color:	Dark Gray to Black
Chemical Formula:	C
Material Grades:	Natural Graphite, Synthetic Graphite, Specialty Graphite, Composite Graphite
Density:	1.7–1.92 g/cm³
Maximum Operating Temperature:	Up to 3000°C (in inert atmosphere)
Thermal Conductivity:	100–200 W/m·K

Features of Graphite Ring

High Temperature Resistance

Maintains structural integrity and functionality even at elevated temperatures, making it ideal for high-temperature applications.

Self-Lubricating

Reduces friction and wear, ensuring longer service life and reliability in rotating and moving parts.

Chemical Corrosion Resistance

Offers excellent resistance to a wide range of chemicals, including acids, alkalis, and organic solvents, making it suitable for aggressive environments.

Low Thermal Expansion

The material exhibits minimal thermal expansion, providing stable performance under varying temperature conditions.

Customizable Sizes

Graphite rings can be tailored to specific dimensions and applications, offering flexibility for a wide range of sealing needs across different industries.

Specification

Category	Details
Material	Carbon Content: 98% (Industrial Grade) ~ 99.85% (Nuclear Grade) Density: Various densities up to 1.8 g/cm³
Operating Parameter	In almost all media and air environments: Resistant to -200°C ~ 550°C. In a steam environment: Resistant to -200°C ~ 700°C In inert gas environment: Resistant to -200°C ~ 2500°C Resistant to fluids with a pH range of 0 – 14 (except strong oxidizers like nitric or sulfuric acid) Pressure: 100 MPa
Dimensions	Outer Diameter (OD): 2 – 1100 mm It can also be fabricated into angled endless rings, cut straight or at a 45° diagonal, or split into two halves. Special sizes can be customized according to order requirements or specific drawings.

Manufacturing Process of Graphite Ring

Material Selection

High-purity graphite powder or blocks are chosen as raw materials to ensure the final product's quality.

Forming

The graphite powder or block material is shaped into rings using mold pressing or extrusion processes.

High-Temperature Treatment

The formed graphite rings are sintered in a high-temperature furnace to increase their strength and density.

Surface Treatment

Based on specific application needs, the graphite rings undergo surface treatments such as anti-oxidation coating and impermeability treatment to enhance their performance.

Main Application Fields of Graphite Ring

Electrical Industry: Due to their high electrical and thermal conductivity, graphite rings are widely used in electrical equipment such as motors, brushes, and electrical contacts.

Metallurgical Industry: In high-temperature smelting processes, graphite rings are used as crucibles and furnace linings, leveraging their high-temperature resistance and corrosion resistance to improve smelting efficiency and product quality.

Chemical Industry: Graphite rings are commonly used in chemical equipment like reactors and heat exchangers, ensuring long-term stable operation due to their chemical corrosion resistance.

Mechanical Industry: Utilizing the self-lubricating property and low friction coefficient of graphite rings, they are widely applied in bearings and seals of mechanical equipment, effectively extending equipment lifespan and reducing maintenance costs.

Precautions and maintenance of Graphite Ring

Installation and disassembly

When installing and disassembling graphite rings, ensure correct operation to avoid damage to the graphite rings.

Regular inspection

The wear of the graphite rings should be checked regularly, and the graphite rings with severe wear should be replaced in time.

Cleaning and maintenance

The graphite ring should be kept clean to avoid impurities and dirt affecting its sealing performance.

FAQ

Q: What are graphite rings used for?

A: The main use of graphite rings is as a sealing element in pumps and valves. They are also used in other applications such as bearings, heat exchangers, and electrical contacts.

Q: What rings is graphite made of?

A: Hexagonal rings
Graphite is composed of layers of carbon atoms that are arranged in 6-membered, hexagonal rings. These rings are attached to one another on their edges.

Q: Do graphite gaskets need sealant?

A: Graphite gasket material sheets;
These are the most common type as they are inexpensive and easily cut to size. These graphite gasket sheets don't require sealant and create an airtight seal when installed correctly.

Q: How many times can you use a graphite mold?

A: We use high density graphite when making these which really helps keep your mold from breaking down to quickly. As long as your preheating your mold and pouring you should get well over hundred uses. If you see your mold start to wear down from use we recommend buying a new one.

Q: Can you melt copper in a graphite mold?

A: Additional details. - This graphite can be well applied to high temperature melting such as gold, silver, copper, and brass graphite casting . - Graphite can be used for quick heating and cooling You can make your favorite small objects to exercise your hands-on ability casting gold.

We're professional graphite ring manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade graphite ring made in China here from our factory.

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