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AboutHebei Linaier Rubber Products Co., Ltd. is located in Duqiao Industrial Zone, Jingxian City, Hebei Province, adjacent to Dezhou, Shandong. Founded in early 2001 with a registered capital of 35 million yuan, it is a scientific
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ProductMain products: vertical and horizontal imported and domestic filter plates, diaphragm plates, diaphragms and accessories; pinch valve sleeves and pinch valves and various mining accessories.
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NewsIn 2013, our company's high-pressure cylinder with phenolic cloth support and guide ring obtained the national key new product certificate, project number: 2013GRA20011; its products in coal cylinders and engineering hydrauli
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ServiceWe will actively cooperate with more enthusiasm, strengthen internal management, expand the market externally, improve various performance indicators of existing products, and truly achieve our win-win situation!
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RecruitmentOur company always adheres to the talent concept of "people-oriented", provides a growth platform for talents, and realizes the common growth and development of enterprises and talents.
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The advantages and uses of polyurethane oil seals
Release time:
2021-01-12
Polyurethane material is currently the best thermal insulation material in the world. The main chain contains -NHCOO- repeating structural unit of a type of polymer. The English abbreviation PU.
Polyurethane material is currently the best thermal insulation material in the world. The main chain contains -NHCOO- repeating structural unit of a type of polymer. The English abbreviation PU. It is formed by polymerization of isocyanate (monomer) and hydroxyl compound. Due to the strong polar urethane group, it is insoluble in non-polar groups and has good oil resistance, toughness, abrasion resistance, aging resistance and adhesion. Different raw materials can be used to produce materials suitable for a wide temperature range (-50 to 150°C), including elastomers, thermoplastic resins and thermosetting resins. It is not resistant to hydrolysis at high temperatures, nor is it resistant to alkaline media.
Polyurethane oil seal is a seal made of polyurethane raw materials. It consists of at least a pair of cross-sections perpendicular to the axis of rotation under the action of fluid pressure and the elastic force of the compensation mechanism and the auxiliary seal to keep fit and slide relatively to prevent leakage. s installation.
One, polyurethane oil seal seal performance
Polyurethane oil seals are mainly used for hydraulic cylinders, which are easy to install and can scrape off the dust adhering to the piston rod. The green polyurethane oil seal has a slightly lower hardness, while the blue one has a higher hardness and can withstand greater pressure. Polyurethane oil seal has good physical and mechanical properties, wear resistance and oil resistance. It can prevent the entry of external impurities from affecting the effect of polyurethane, so as to achieve excellent sealing performance. Polyurethane oil seals are the most commonly used seals in medium and high pressure hydraulic cylinders.
2. Use of polyurethane oil seals
Polyurethane oil seals are mainly used in hydraulic cylinders, which are easy to install and can scrape off dust and pollution adhering to the piston rod. In addition, the most commonly used seals in medium and high pressure hydraulic cylinders are polyurethane oil seals. It is suitable for the most demanding working conditions and prevents the entry of external impurities, thereby achieving excellent sealing performance. It is the most commonly used seal in medium and high pressure hydraulic cylinders.
Three, the advantages of polyurethane oil seal seals
1. The physical properties of the polyurethane oil seal are stable and the sealing effect is good;
2. Polyurethane oil seal can effectively prevent the entry of external impurities and eliminate external interference;
3. Polyurethane oil seal has simple structure, simple manufacture and convenient installation;
4. Polyurethane oil seal has long service life, convenient disassembly, convenient inspection and low price.
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