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Urethane rubber O-ring
With the continuous development of the polyurethane industry, more and more industries and businesses to use polyurethane, rubber products industry in the rubber O-ring to be useful for the polyurethane material, polyurethane PU is polyamino urethane for short. It refers to the main chain structure containing high molecular urethane elastomer repeating unit chain links. Polyurethane materials, use very wide. [View Details]
Correlation between hydraulic seals
At present, China produced more messy hydraulic seal performance standards are different, using a hydraulic seal is reliable, reasonable, a great impact on the system. Hydraulic seal structure of the new standards and old standards exist, the reference data are inconsistent experience inconsistent conclusions. Hydraulic seal groove dimensions, hydraulic seal groove surface roughness and hydraulic seal tolerances, materials, etc., pay attention to the correlation between them. [View Details]
ydraulic O-ring improvement plan
According to the load can be divided into static seal and dynamic seal; use can be divided according to the sealing hole seal, shaft seal and rotary shaft seal; its installation in the form of installation can be divided into radial and axial installation Radial installation. , the shaft seal, O-ring should make the hydraulic seal and the inner diameter of the deviation d2 between the diameter as small as possible; [View Details]
Xinhua Xu seals IMPORTANT NOTE
Installation diameter with the gap Xinhua Xu seals (ie, concentricity), four weeks should be uniform, with a feeler points tolerance is not greater than 0.01 mm. Seal material does not allow too small or too large phenomenon requiring error 2.00 mm. Excessive increase face pressure to accelerate the wear face. Too small will cause less than the pressure seal and can not play a role. [View Details]
Emergency repairs can repair excavator
Excavator O-ring repair box belong to the engineering machinery repair box. O-ring repair box o-ring lubrication and seal, the engineering machinery in the course of work, you may encounter a variety of problems. When the job as bulldozer engine suddenly stalled, connecting rod bearing burn dismantling discovery engine. Connecting rod bearing burn requires O-rings to seal repair cartridge replacement seal. [View Details]
Rubber seals surface factors
Rubber seals to prevent fluid or solid particles between the surface and prevent leakage from adjacent binding material or foreign matter such as dust and water intrusion and other parts inside the machine equipment parts. [View Details]
NBR rubber U-shaped rubber seals
NBR rubber U-shaped rubber seal with good resistance to oil, water resistance, solvent resistance and resistance to high pressure oil properties. With good compression distortion, wear and elongation force. NBR rubber (NBR) U-type rubber seals made of acrylonitrile and butadiene polymerization, acrylonitrile content from 18% to 50%, the higher the acrylonitrile content of the hydrocarbon fuel of petrochemical oil resistance better, but the low temperature performance is poor, the general temperature range of -25 ~ 100 ?. NBR rubber and rubber ring seal is currently one of the most commonly used rubber. [View Details]
Mat rubber seals advantage?
Mat rubber seals are widely used in static sealing joint surface of pipes, pressure vessels and a variety of housing. [View Details]
Hydraulic seals sports complex effects
The contact pressure of the hydraulic seal with the sealing surface displacement changes arising from fluctuations in contact pressure with medium pressure pre-compression rate increases linearly with increasing velocity has little effect on the contact pressure, the contact pressure with the velocity curve volatility medium pressure pre-compression rate increases; between the hydraulic cylinder seals and dynamic sealing performance of the contact surface of the contact surface between the superior hydraulic seal and piston; hydraulic seal dynamic sealing performance is better than pushing away return; pre-compression ratio less than 10%, hydraulic seals can not meet the requirements of the dynamic seal hydraulic gas distribution system, to ensure that the hydraulic sealing ring, you need to select a reasonable pre-compression rates. [View Details]
We have to understand the hydraulic seal
Hydraulic seal role: to prevent fluid or solid particles between the surface and prevent leakage from adjacent binding material or foreign matter such as dust and water intrusion and other parts inside the machine equipment parts. [View Details]

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