Xinhua Xu rubber material theXinhua Xu rubber material the basics

In the purchase of repair of seals, the following procedure is recommended to improve the accuracy of purchase seals:

Direction of movement: first determine the direction of movement of the seal location, such as reciprocating, rotary, or screw fixing.

Seal Key: activities such as deciding point is the inner diameter of the rod seal or piston seal Spots in outer diameter and the like.

Temperature rating: Instructions from the manufacturer of mechanical inspection or assessment by the actual working environment temperature, determine the required use of materials. Related to temperature class can be reference to the following production and user precautions.

Pressure Rating: Check out the data from the original description of the use of machinery, or by observing the softness and structure of the original seal infer working pressure rating, pressure class can be related to reference to the following production users attention.

Size: Most users will be used by the old sample purchase, but the seals in use for some time, will be the temperature, pressure and wear and other factors dramatically affect its original size, press to select sample only as a reference, and more the best way is a measure of the location of the seal metal tank size, accuracy will be higher.

 

Xinhua Xu rubber material of silicone rubber. Main chain of alternating silicon atoms of oxygen with organic groups on the silicon atom. High temperature resistance, ozone resistance, electrical insulation. Operating temperature -40 ? ~ + 220 ?; oil is preferred, temperature, abrasion resistance, oil. Especially suitable for automotive engine crankshaft oil seal inside, oxygen, ozone and sunlight (UV) resistant.

Xinhua Xu rubber material natural rubber hydrocarbon-based rubber containing a small amount of protein, moisture, resin acids, sugars and inorganic salts. Flexibility, high elongation strength, tear resistance and excellent electrical insulation, excellent wear resistance and drought tolerance, good workability, easy adhesion of other materials, synthetic rubber is better than most in terms of overall performance. The disadvantage is resistant to oxygen and ozone resistance is poor, easy to aging deterioration; oil and solvent resistance poor, low corrosion of the first anti-acid; high heat resistance. Operating temperature range: about -60 ? ~ + 80 ?. Production of tires, rubber shoes, hose, tape, wire and cable insulation and jacketing, and other common products. Especially for the manufacture of torsional vibration eliminator, engine dampers, machine bearings, rubber-metal suspension member, the diaphragm, the molded article.

Xinhua Xu rubber material butadiene rubber is a polymer made from butadiene rubber cis structure. Flexibility and excellent wear resistance, anti-aging properties and good low temperature resistance in dynamic load heat a small, easy-to-metal bonding. The disadvantage is low strength, tear resistance is poor, poor processing performance and self-adhesive. Operating temperature range: about -60 ? ~ + 100 ?. More generally, and natural rubber or styrene-butadiene rubber and use, mainly the production of tire treads, conveyor belts and special cold-resistant products.

Xinhua Xu rubber material isoprene rubber is polymerized from isoprene monomer made of a rubber-cis structure. Chemical composition, three-dimensional structure similar to natural rubber, natural rubber performance is very close, so it is called synthetic natural rubber. It has most of the advantages of natural rubber, anti-aging due to natural rubber, flexible and powerful lower than natural rubber, poor processing performance, high cost. Operating temperature range: about -50 ? ~ + 100 ? can replace natural rubber production of tires, rubber shoes, hose, belt and other common products.

Xinhua Xu Neoprene rubber material is chloroprene monomer emulsion made from the polymer. This rubber molecules containing chlorine atoms, as compared with other general rubber: it has excellent oxidation, ozone resistance, non-flammable, self-extinguishing after the fire, oil, solvent, acid and anti-aging, gas tightness and good; their physical and mechanical properties better than natural rubber, it is used as a general rubber, special rubber may also be used. The main disadvantage is poor resistance to cold, a larger proportion of relatively high cost, electrical insulation is not good, easy to stick roll machining, easy to scorch and easy to stick mold. In addition, raw rubber poor stability and difficult to preserve. Operating temperature range: about -45 ? ~ + 100 ?. The main requirements for the manufacture of anti-ozone, high resistance to aging and a variety of cable jacket protective cover, protective cover; oil, chemical resistant hoses, plastic and chemical lining; fire underground mining rubber products, as well as a variety of molded products, seals, pads, adhesive or the like.

Xinhua Xu rubber material butyl rubber is isobutylene and a small amount of isoprene or butadiene copolymer. The biggest feature is the air tightness, ozone resistance, good aging resistance, high heat resistance, long-term working temperature below 130 ?; resistant to inorganic acids (such as sulfuric acid, nitric acid, etc.) and organic solvents, vibration absorption and damping characteristics good electrical insulation is also very good. The disadvantage is poor flexibility, poor processing performance, slow curing, poor adhesion and oil resistance. Operating temperature range: about -40 ? ~ 120 ?. Mainly used for inner tubes, wire and cable insulation, chemical equipment lining and shock products, heat-resistant conveyor belt, heat aging tape products.

Xinhua Xu NBR rubber material of butadiene and acrylonitrile copolymer obtained. Good oil resistance, heat resistance, cold resistance, pressure resistance and water resistance, air tightness and excellent bonding properties, and has a suitable wear resistance, the usual temperature is approximately -40 ~ + 120 ? , or it can be used in long-term oil 15O ? at 120 ? in air. Ease of metal hydraulic seal molded into any shape, and therefore most suitable for the production of nitrile rubber not greater than the working pressure of 32MPa hydraulic cylinder seals. Specially designed recipes, easy to press the onset oil resistant: The wear can withstand the mechanical axis of car speed 3000 rev / less (in this case a rubber hardness of 70 °).

Xu Xinhua copolymer rubber material hydrogenated nitrile rubber of butadiene and acrylonitrile. It is through wholly or partially hydrogenated NBR butadiene double bond obtained. It features high mechanical strength and abrasion resistance when used peroxide crosslinking good heat resistance than NBR, nitrile rubber and other properties the same. Operating temperature range: about -30 ? ~ + 150 ?. Mainly used for oil, high temperature sealing products.

Xinhua Xu rubber material ethylene-propylene rubber is a copolymer of ethylene and propylene, it is generally divided into EPR and EPDM. Is characterized by resistance to ozone, UV-resistant, weather resistance and excellent resistance to aging, ranking first in the general rubber. Electrical insulation, chemical resistance, impact good flexibility, acid, the proportion of small, can be highly filled with. Heat up to 15O ?, resistance to polar solvent is a ketone, ester, etc., but the impatience of aliphatic and aromatic hydrocarbons, other physical and mechanical properties slightly inferior to natural rubber and styrene-butadiene rubber is superior. The disadvantage is self-adhesive and mutual viscosity is poor, difficult to bond. Operating temperature range: about -50 ? ~ + 150 ?. Mainly used for wire and cable sheathing, steam hose, heat-resistant conveyor belts, automotive rubber products and other industrial products.

Xinhua Xu rubber material fluorine rubber. Substructure containing synthetic rubber fluorine atoms. Typically the number of fluorine atoms in the fluorine-containing copolymer unit to said fluorine rubber 23, is a vinylidene fluoride with chlorotrifluoroethylene copolymer. Viton high temperature, oil, chemical resistant. Oil, high temperature resistance, chemical resistance, but also has characteristics of acid. Operating temperature -30 ? ~ + 280 ?. Crankshaft oil seal suitable for jet engines within the Timing oil seals, O-rings and seals.

Xinhua Xu rubber material polyurethane rubber cool. Polyurethane is the highest tensile strength of a synthetic rubber, and rubber, it has excellent oil resistance, heat resistance, cold resistance, pressure resistance and abrasion resistance and good mechanical properties, the usual temperature of -40 ? ~ + 80 ?, cool room temperature polyurethane rubber sealing properties superior to NBR, it is particularly suitable for the production of medium pressure, high pressure and high pressure hydraulic cylinder seals. It is the most common choice of high-pressure hydraulic cylinder sealing material (low-voltage optional NBR rubber), in particular, longer life, a lot of the original rubber seal occasions use polyurethane seal.

Xinhua Xu cool acrylic rubber material is a rubber or acrylate, ethyl acrylate, butyl cool vinegar polymer. Its characteristics are both good heat resistance, oil resistance, lubricating oil containing sulfur, phosphorus, chlorine additive stable performance. At the same time aging resistance, oxygen and ozone, UV resistant, excellent air tightness. The disadvantage is poor resistance to cold, no water, steam and intolerant of organic and inorganic acids, alkalis. Severe swelling in methanol, ethylene glycol, water-soluble ketone vinegar solution. While the elastic and poor wear resistance, electrical insulation, poor, poor processing performance. Operating temperature range: about -25 ? ~ + 150 ?. Can be used to make oil, heat, anti-aging products, such as seals, hoses, chemical linings.

Xinhua Xu rubber material by the Thiokol polysulfide dihaloalkane with an alkali metal or alkaline earth metal from condensation. There are excellent oil and solvent resistance, but the intensity is not high, aging resistance, workability bad smell, and more with NBR and use. In addition, polyurethane rubber, epichlorohydrin rubber, acrylic rubber and the like.

Epichlorohydrin rubber, epichlorohydrin homo- or copolymer of epichlorohydrin and ethylene oxide polymer formed. It is characterized by resistance to aliphatic hydrocarbons and chlorinated hydrocarbon solvents, alkali, water resistance, excellent aging resistance, ozone resistance. It can be used as hoses, seals, films and container liners, tanks, cot, manufacture seal, seal and so on.

Xinhua Xu rubber material chlorinated polyethylene rubber is substituted by a chlorine polyethylene polymer having an elastic reaction formed. Performance and close chlorosulfonated polyethylene rubber, which is characterized by good fluidity, easy processing; excellent weather resistance, ozone resistance and corona resistance, heat, acid, oil resistance is good. The disadvantage is poor flexibility, greater compression and lower electrical insulation. Operating temperature range: about -20 ? ~ + 120 ?. Wire and cable sheathing, hoses, plastic, rubber roller chemical linings. basics

In the purchase of repair of seals, the following procedure is recommended to improve the accuracy of purchase seals:

Direction of movement: first determine the direction of movement of the seal location, such as reciprocating, rotary, or screw fixing.

Seal Key: activities such as deciding point is the inner diameter of the rod seal or piston seal Spots in outer diameter and the like.

Temperature rating: Instructions from the manufacturer of mechanical inspection or assessment by the actual working environment temperature, determine the required use of materials. Related to temperature class can be reference to the following production and user precautions.

Pressure Rating: Check out the data from the original description of the use of machinery, or by observing the softness and structure of the original seal infer working pressure rating, pressure class can be related to reference to the following production users attention.

Size: Most users will be used by the old sample purchase, but the seals in use for some time, will be the temperature, pressure and wear and other factors dramatically affect its original size, press to select sample only as a reference, and more the best way is a measure of the location of the seal metal tank size, accuracy will be higher.

 

Xinhua Xu rubber material of silicone rubber. Main chain of alternating silicon atoms of oxygen with organic groups on the silicon atom. High temperature resistance, ozone resistance, electrical insulation. Operating temperature -40 ? ~ + 220 ?; oil is preferred, temperature, abrasion resistance, oil. Especially suitable for automotive engine crankshaft oil seal inside, oxygen, ozone and sunlight (UV) resistant.

Xinhua Xu rubber material natural rubber hydrocarbon-based rubber containing a small amount of protein, moisture, resin acids, sugars and inorganic salts. Flexibility, high elongation strength, tear resistance and excellent electrical insulation, excellent wear resistance and drought tolerance, good workability, easy adhesion of other materials, synthetic rubber is better than most in terms of overall performance. The disadvantage is resistant to oxygen and ozone resistance is poor, easy to aging deterioration; oil and solvent resistance poor, low corrosion of the first anti-acid; high heat resistance. Operating temperature range: about -60 ? ~ + 80 ?. Production of tires, rubber shoes, hose, tape, wire and cable insulation and jacketing, and other common products. Especially for the manufacture of torsional vibration eliminator, engine dampers, machine bearings, rubber-metal suspension member, the diaphragm, the molded article.

Xinhua Xu rubber material butadiene rubber is a polymer made from butadiene rubber cis structure. Flexibility and excellent wear resistance, anti-aging properties and good low temperature resistance in dynamic load heat a small, easy-to-metal bonding. The disadvantage is low strength, tear resistance is poor, poor processing performance and self-adhesive. Operating temperature range: about -60 ? ~ + 100 ?. More generally, and natural rubber or styrene-butadiene rubber and use, mainly the production of tire treads, conveyor belts and special cold-resistant products.

Xinhua Xu rubber material isoprene rubber is polymerized from isoprene monomer made of a rubber-cis structure. Chemical composition, three-dimensional structure similar to natural rubber, natural rubber performance is very close, so it is called synthetic natural rubber. It has most of the advantages of natural rubber, anti-aging due to natural rubber, flexible and powerful lower than natural rubber, poor processing performance, high cost. Operating temperature range: about -50 ? ~ + 100 ? can replace natural rubber production of tires, rubber shoes, hose, belt and other common products.

Xinhua Xu Neoprene rubber material is chloroprene monomer emulsion made from the polymer. This rubber molecules containing chlorine atoms, as compared with other general rubber: it has excellent oxidation, ozone resistance, non-flammable, self-extinguishing after the fire, oil, solvent, acid and anti-aging, gas tightness and good; their physical and mechanical properties better than natural rubber, it is used as a general rubber, special rubber may also be used. The main disadvantage is poor resistance to cold, a larger proportion of relatively high cost, electrical insulation is not good, easy to stick roll machining, easy to scorch and easy to stick mold. In addition, raw rubber poor stability and difficult to preserve. Operating temperature range: about -45 ? ~ + 100 ?. The main requirements for the manufacture of anti-ozone, high resistance to aging and a variety of cable jacket protective cover, protective cover; oil, chemical resistant hoses, plastic and chemical lining; fire underground mining rubber products, as well as a variety of molded products, seals, pads, adhesive or the like.

Xinhua Xu rubber material butyl rubber is isobutylene and a small amount of isoprene or butadiene copolymer. The biggest feature is the air tightness, ozone resistance, good aging resistance, high heat resistance, long-term working temperature below 130 ?; resistant to inorganic acids (such as sulfuric acid, nitric acid, etc.) and organic solvents, vibration absorption and damping characteristics good electrical insulation is also very good. The disadvantage is poor flexibility, poor processing performance, slow curing, poor adhesion and oil resistance. Operating temperature range: about -40 ? ~ 120 ?. Mainly used for inner tubes, wire and cable insulation, chemical equipment lining and shock products, heat-resistant conveyor belt, heat aging tape products.

Xinhua Xu NBR rubber material of butadiene and acrylonitrile copolymer obtained. Good oil resistance, heat resistance, cold resistance, pressure resistance and water resistance, air tightness and excellent bonding properties, and has a suitable wear resistance, the usual temperature is approximately -40 ~ + 120 ? , or it can be used in long-term oil 15O ? at 120 ? in air. Ease of metal hydraulic seal molded into any shape, and therefore most suitable for the production of nitrile rubber not greater than the working pressure of 32MPa hydraulic cylinder seals. Specially designed recipes, easy to press the onset oil resistant: The wear can withstand the mechanical axis of car speed 3000 rev / less (in this case a rubber hardness of 70 °).

Xu Xinhua copolymer rubber material hydrogenated nitrile rubber of butadiene and acrylonitrile. It is through wholly or partially hydrogenated NBR butadiene double bond obtained. It features high mechanical strength and abrasion resistance when used peroxide crosslinking good heat resistance than NBR, nitrile rubber and other properties the same. Operating temperature range: about -30 ? ~ + 150 ?. Mainly used for oil, high temperature sealing products.

Xinhua Xu rubber material ethylene-propylene rubber is a copolymer of ethylene and propylene, it is generally divided into EPR and EPDM. Is characterized by resistance to ozone, UV-resistant, weather resistance and excellent resistance to aging, ranking first in the general rubber. Electrical insulation, chemical resistance, impact good flexibility, acid, the proportion of small, can be highly filled with. Heat up to 15O ?, resistance to polar solvent is a ketone, ester, etc., but the impatience of aliphatic and aromatic hydrocarbons, other physical and mechanical properties slightly inferior to natural rubber and styrene-butadiene rubber is superior. The disadvantage is self-adhesive and mutual viscosity is poor, difficult to bond. Operating temperature range: about -50 ? ~ + 150 ?. Mainly used for wire and cable sheathing, steam hose, heat-resistant conveyor belts, automotive rubber products and other industrial products.

Xinhua Xu rubber material fluorine rubber. Substructure containing synthetic rubber fluorine atoms. Typically the number of fluorine atoms in the fluorine-containing copolymer unit to said fluorine rubber 23, is a vinylidene fluoride with chlorotrifluoroethylene copolymer. Viton high temperature, oil, chemical resistant. Oil, high temperature resistance, chemical resistance, but also has characteristics of acid. Operating temperature -30 ? ~ + 280 ?. Crankshaft oil seal suitable for jet engines within the Timing oil seals, O-rings and seals.

Xinhua Xu rubber material polyurethane rubber cool. Polyurethane is the highest tensile strength of a synthetic rubber, and rubber, it has excellent oil resistance, heat resistance, cold resistance, pressure resistance and abrasion resistance and good mechanical properties, the usual temperature of -40 ? ~ + 80 ?, cool room temperature polyurethane rubber sealing properties superior to NBR, it is particularly suitable for the production of medium pressure, high pressure and high pressure hydraulic cylinder seals. It is the most common choice of high-pressure hydraulic cylinder sealing material (low-voltage optional NBR rubber), in particular, longer life, a lot of the original rubber seal occasions use polyurethane seal.

Xinhua Xu cool acrylic rubber material is a rubber or acrylate, ethyl acrylate, butyl cool vinegar polymer. Its characteristics are both good heat resistance, oil resistance, lubricating oil containing sulfur, phosphorus, chlorine additive stable performance. At the same time aging resistance, oxygen and ozone, UV resistant, excellent air tightness. The disadvantage is poor resistance to cold, no water, steam and intolerant of organic and inorganic acids, alkalis. Severe swelling in methanol, ethylene glycol, water-soluble ketone vinegar solution. While the elastic and poor wear resistance, electrical insulation, poor, poor processing performance. Operating temperature range: about -25 ? ~ + 150 ?. Can be used to make oil, heat, anti-aging products, such as seals, hoses, chemical linings.

Xinhua Xu rubber material by the Thiokol polysulfide dihaloalkane with an alkali metal or alkaline earth metal from condensation. There are excellent oil and solvent resistance, but the intensity is not high, aging resistance, workability bad smell, and more with NBR and use. In addition, polyurethane rubber, epichlorohydrin rubber, acrylic rubber and the like.

Epichlorohydrin rubber, epichlorohydrin homo- or copolymer of epichlorohydrin and ethylene oxide polymer formed. It is characterized by resistance to aliphatic hydrocarbons and chlorinated hydrocarbon solvents, alkali, water resistance, excellent aging resistance, ozone resistance. It can be used as hoses, seals, films and container liners, tanks, cot, manufacture seal, seal and so on.

Xinhua Xu rubber material chlorinated polyethylene rubber is substituted by a chlorine polyethylene polymer having an elastic reaction formed. Performance and close chlorosulfonated polyethylene rubber, which is characterized by good fluidity, easy processing; excellent weather resistance, ozone resistance and corona resistance, heat, acid, oil resistance is good. The disadvantage is poor flexibility, greater compression and lower electrical insulation. Operating temperature range: about -20 ? ~ + 120 ?. Wire and cable sheathing, hoses, plastic, rubber roller chemical linings.