Polytetrafluoroethylene add glass fibre add oxide PTFE gaskets liner Shim Spacer Pads customized

Polytetrafluoroethylene add glass fibre add oxide PTFE gaskets liner Shim Spacer Pads customized System 1

Polytetrafluoroethylene add glass fibre add oxide PTFE gaskets liner Shim Spacer Pads customized

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Loading Port:: SHENZHEN

Payment Terms:: TT OR LC

Min Order Qty:: 100 pc

Supply Capability:: 100000 pc/month

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A gasket is a material or combination of materials clamped between two separate joints (flanges) and serves to maintain a seal between the two joints for a predetermined service life. The gasket must be able to seal the joint surfaces and ensure that the sealing medium is impermeable and non-corrosive, and can withstand temperature and pressure, etc.

Q:How do rubber undergo vulcanization?: Heat vulcanization can be divided into three methods: direct vulcanization, indirect vulcanization and mixed gas vulcanization. Direct vulcanization; vulcanizing in hot water or steam medium. Indirect vulcanization, vulcanization in hot air. Third, gas vulcanization, first vulcanization with air, and then direct steam vulcanization.

Q:Why is rubber resistant to compression and wear better than metal?: Rubber crane seen, never seen Iron Hanging

Q:What advantage does ethylene propylene rubber with three yuan compare to two yuan ethylene propylene rubber?: Because the two EPDM molecules containing double bonds, not curing, which limits its application. In the ethylene propylene rubber commodity brand, two yuan ethylene propylene rubber accounts for only about 10% of the total. While the three rubber vulcanization available, which has been widely used, and become the main varieties of ethylene propylene rubber, ethylene propylene rubber in the commodity brands accounted for about 90%. At present, third monomers commonly used in the industrial production of three yuan ethylene propylene diene monomer are ethylene glycol norbornene (ENB), dicyclopentadiene (DCPD) and 1, 4- (HD).

Q:What is the difference between vulcanized rubber and butyl rubber?: Nitrile butadiene rubber is prepared by polymerization of butadiene and acrylonitrile by emulsion polymerization. Nitrile rubber is mainly produced by low temperature emulsion polymerization. It has excellent oil resistance, high wear resistance, good heat resistance and strong adhesive force. Its disadvantage is poor resistance to low temperature, poor ozone resistance

Q:What kind of rubber products are expensive?: The size and size of rubber products determine the amount of glue used, which is a matter of cost;

Q:Rubber and metal have to be sealed before they are too strong: The percentage difference between the first compression compression = original section diameter minus the trench size divided by the original O ring diameter O-ring compression is mainly depends on the material hardness and O-ring, O-ring if the hardness is 70 degrees, then the O-ring compression is equal to 20%. Of course, the lower the hardness of the O-ring, O-ring compression is greater, mainly used for low pressure places. Then the O-ring hardness increases the amount of compression of the O-ring is smaller, mainly used for high pressure, pressure resistance, resistance of small environment. And so on, the amount of compression can be any hardness O-ring you need.

Q:Why should the tire be made of rubber?: The molecular chain of rubber can be crosslinked, and the crosslinked rubber can recover quickly when it is deformed by external force, and has good physical and mechanical properties and chemical stability. It is widely used in the manufacture of tires, hoses, tapes, cables and other rubber products.

Q:How to identify the tire rubber is raw or cooked: Rubber molding, after pressing, the elastic body is within the cohesion can not be eliminated, the molding die, often have a very unstable contraction (rubber shrinkage due to rubber vary), required after a period of time, and can be stable. Therefore, when a rubber product design at the beginning, regardless of formula or mold, it is necessary to carefully calculate the coordination, if not, it is easy to produce product size instability, resulting in lower quality products.

Q:There is a crack in rubber products: The additive time temperature and pressure of semi-finished shapes semi-finished semi-finished products placed as far as possible when placed speed gap semi-finished size can be more appropriate to put five percent to ten percent semi finished mixing can put some help curing

Q:Is it necessary to use rubber products for steel structure buildings?: Some of the steel structures with small deformation are designed with rubber pads at the sliding bearings.

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