Graphite ring

Graphite ring is a kind of ring product made of flexible graphite tape or flexible graphite braided packing, which is molded into different sizes. The following is a detailed introduction to graphite rings:

1. Classification and characteristics
Graphite rings are mainly divided into flexible graphite rings and carbon-graphite rings.

Flexible graphite ring:
It has good flexibility and sealing performance.
Applicable to a variety of media and working conditions.
Carbon-graphite ring:
Mainly used for sealing of mechanical rotating parts.
It has the characteristics of high temperature resistance, corrosion resistance and wear resistance.

2. Performance parameters
The performance parameters of graphite rings include pressure, temperature, linear speed and pH value, as follows:

Pressure: usually up to 25MPa.
Temperature: The operating temperature range is wide, between -200℃ and 850℃.
Linear speed: up to 30m/s.
pH value: The applicable range is 0 to 14.
3. Application fields
Graphite rings are widely used in many fields due to their excellent performance:

Chemical industry: used for sealing chemical instruments, meters, pumps, valves and other equipment.
Petroleum industry: used for equipment sealing in the process of petroleum refining, petrochemical industry, etc.
Metallurgical industry: used for metallurgical furnace lining, crucible for smelting precious metals and rare metals, etc.
Mechanical industry: used for sealing of mechanical equipment such as compressors and pumps.

IV. Production process and impregnation treatment
The production process of graphite rings includes steps such as raw material preparation, molding, and processing. For porous carbon graphite rings, impregnation treatment is usually required to improve their sealing performance and wear resistance. Impregnation treatment can use impregnants such as phenolic resin, furan resin, and epoxy resin. Through vacuum impregnation, pressurized curing and other process steps, the impregnant can fully penetrate into the pores of the graphite ring to form an impermeable material.

V. Precautions and maintenance
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.
6. About us

Henan Yiguan Import and Export Co., Ltd. is one of the domestic manufacturers specializing in the production of graphite molds. The raw materials used by our company, such as isostatic graphite, molded graphite, and EDM graphite, have the characteristics of high strength, good thermal shock resistance, high temperature resistance, corrosion resistance, and strong oxidation resistance. The main products are: graphite molds, graphite crucibles, graphite plates, graphite rods, graphite tubes, graphite boxes, graphite blocks, graphite heaters and various special-shaped graphite accessories, etc., which are widely used in metallurgical casting, solar photovoltaic, electronic semiconductors, new energy batteries, mechanical processing, industrial furnace high temperature treatment, diamond sintering, EDM machining, glass, chemical and nuclear industries.

Our company has long been committed to the development of the graphite processing industry, and is equipped with a series of advanced processing technology and equipment, and has established a special quality inspection department to ensure the quality of the company’s products. We can provide graphite processing services according to customer requirements, and process through customer-required specifications, technical drawings and sketches. We use our processing technology and advanced processing equipment, as well as experienced processing technicians to produce perfect graphite products for customers.
In addition to mechanical processing, we also provide post-processing services such as graphitization and purification, and provide customers with perfect product services at preferential prices.
The company has always been based on the principle of “customer first, thoughtful service”, thinking about what customers think, and being anxious about what customers are anxious about, and making progress together with users in the field of graphite products to create brilliance.

In summary, as an important sealing element, graphite rings play an important role in many fields. Through reasonable production processes and impregnation treatment, their performance and service life can be further improved. At the same time, during use, it is also necessary to pay attention to issues such as installation, disassembly, inspection and maintenance to ensure its normal operation and extend its service life.