Carbon Seal

• 

Mechanical carbon sealhas a long history. Graphite is an isoform of element carbon. In 1971, the United States studied the successful flexible graphite sealing material, which solved the leakage of atomic energy valve. After deep processing, the flexible graphite becomes an excellent sealing material, which are made into various carbon mechanical sealwith the effect of sealing components. These carbon shaft sealare used in chemical, petroleum, electric power industries such as high temperature fluid seal.

Because the flexible graphite is formed by the expansion of expanded graphite after high temperature, the amount of intercalating agent remaining in the flexible graphite is very small, but not completely, so the existence and composition of the intercalation agent have a great influence on the quality and performance of the product.

Selection of Carbon Seal Material

The original inventor used concentrated sulfuric acid as oxidant and intercalating agent. However, after being applied to the seal of a metal component, a small amount of sulfur remaining in the flexible graphite was found to corrode the contact metal after long term use. In view of this point, some domestic scholars have tried to improve it, such as Song Kemin who choosed acetic acid and organic acid instead of sulfuric acid. acid, slow in nitric acid, and lower the temperature to room temperature, made from a mixture of nitric acid and acetic acid. By using the mixture of nitric acid and acetic acid as the inserting agent, the sulfur free expanded graphite was prepared with potassium permanganate as oxidant, and acetic acid was slowly added to nitric acid. The temperature is reduced to room temperature, and the mixture of nitric acid and acetic acid is made. Then the natural flake graphite and potassium permanganate are added to this mixture. Under constant stirring, the temperature is 30 C. After reaction 40min, the water is washed to neutral and dried at 50~60 C, and the expanded graphite is made after high temperature expansion. This method achieves no vulcanization under the condition that the product can reach a certain volume of expansion, so as to achieve a relatively stable nature of the sealing material.

Specification of Carbon Ring Seal

Sealcon can produce different carbon ring seals according to different customers’ requirement.

+ stable - unstable 0 middle (between stable and unstable)

Hangzhou Sealcon Fluid Machinery Co., Ltdis a professional carbon seal ring manufacturer, we provide china agitator, high quality mechanical sealand etc. For more information, please feel free to contact us!

Другие товары поставщика

	FLYGT MECHANICAL SEALS	Flygt mechanical seals are usually used in the Swedish ITT Flygt mixer and submersible sewage pumps. They are one of the essential Flygt pump parts...
	O RING MECHANICAL SEALS	Types of O Ring Mechanical Seal We supply all standard types of materials in a range of Shore Hardnesses and colours. In addition to standard imper...
	Analysis And Maintenance Scheme Of Leakage Point Of Mechanical Seal For Pump	Pump with a wide range of mechanical seals, different models, but there are five major leaks: Seal between sleeve and shaft; Seal between movable...
	TC Seal	TC materials have features of high hardness, strength, abrasion resistance and corrosion resistance. It is known as “Industrial Tooth”....
	SiC Mechanical Seal	Silicon carbide products are classified into many kinds according to different application environment. It is generally used more mechanically. For...

Похожие товары

	Cold Glaze Stabilizer (Glazemate)	Продавец: Marine Hydrocolloids	Meron’s Cold Glaze StabilizerGlazemate, a ready to use Neutral Cold Glaze Stabiliser, which...
	Pectin	Продавец: Marine Hydrocolloids	Meron Pectin is a structural polysaccharide of the cell wall of plants, Commercial pectin is comm...
	Milk Shake Stabilizer	Продавец: Marine Hydrocolloids	Meron’s Milk Shake StabilizerOur Milkshake Stabilizer has been designed to provide creamy m...
	Flavoured Milk Stabilizer	Продавец: Marine Hydrocolloids	Meron’s Flavoured Milk StabilizerFlavoured milk drinks are sweetened dairy drinks, typicall...
	Ice Cream Stabilizer	Продавец: Marine Hydrocolloids	Meron’s IceCream Stabilizer is a 100% vegan blend developed to not only enhance the texture...