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Silicone rubber sealing ring air tightness

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Silicone rubber sealing ring air tightness

Date of release:2019-06-27 Author: Click:

Nitrile butadiene rubber (NBR) has excellent oil resistance, second only to polysulfide rubber and fluoro rubber, and has excellent abrasion resistance and air tightness. But nitrile butadiene rubber also has its limitations, its disadvantage is not resistant to ozone and aromatic, halogenated hydrocarbon, ketone and ester solvents, not suitable for insulation materials. The heat resistance of nitrile butadiene rubber is better than that of styrene-butadiene rubber and neoprene rubber. Air tightness is second only to butyl rubber. The properties of nitrile butadiene rubber are affected by the acrylonitrile content. With the increase of acrylonitrile content, the tensile strength, heat resistance, oil resistance, air tightness and hardness of nitrile butadiene rubber increase, but the elasticity and cold resistance decrease.

Nitrile butadiene rubber is mainly used for making oil-resistant products, such as oil-resistant tubing, rubber tape, rubber diaphragm and large oil capsule, etc. It is often used for making all kinds of oil-resistant mould-pressed products, such as o-ring, oil seal, leather bowl, diaphragm, valve, bellows, rubber hose, seals, foam, etc. It is also used for making rubber plate and wear-resistant parts.

The framework oil seal is made of high quality nitrile butadiene rubber and steel plate, with stable quality and long service life. Nitrile rubber framework oil seal is widely used in automobile, motorcycle, tractor, water pump and other mechanical engines, shock absorbers, transmissions and other places.

Matters needing attention

1. Please read the instructions of each series of products by yourself before designing the groove, and make it clear that the product USES integral groove or split groove; Attention should be paid to avoid sharp edges in the process of sealing parts installation. The hole must be loaded into the overall groove with sealing parts by means of installation tools. Designers should consider the groove size accuracy, surface roughness, extrusion clearance and other parameters, please refer to the product instructions, drawings and dimensions.

2. Before installing the seals, it is necessary to ensure that there are no impurities or cracks in the sealing groove. Gradually install seals in sequence; Avoid sharp edge during installation, and hold the sealing element upright to avoid distortion and skew. If the split groove, finally tighten the gland.

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Key word:Priceofsiliconesealring,Siliconeringmanufacturers,Silicagelsealringwholesale

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