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- 2016-06-03 17:18:33
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Hydraulic O-ring Important point
??Hydraulic O-rings can be used NBR, natural, fluorine rubber, silicone, widely used in automobiles, machinery, valves, etc., use of different types of plastic can meet the -50 ? - + 250 ? temperature region of. Product wear, flex well, pressure range: & lt; 10MPa (hydraulic), & lt; 1MPa (pneumatic) & lt; 16MPa (static seal) of the NBR and resistance to gasoline distribution (90,93,97) expansion rate 0. Xinhua Xu rubber products company may need to require the production design.
??Installation of hydraulic O-ring is very important to install the right way, the work done by the front could be undermined. For Hydraulic O-rings installed properly, first before design begins to consider these issues, and then use the appropriate installation tools and methods to ensure that the hydraulic O-rings are not damaged, so that the hydraulic O-ring in order to play its due sealing effect.
??In the piston chamber or piston rod end portion of the lead-in chamfer design ring mounting helpful. Should the hydraulic cylinder piston rod or piston chamber design of a length not less than Zmin, lead-in chamfer angle of 20 ° ~ 25 ° in order to be able to seal gently loaded part. Chamfered opening and seal in its natural state should have a gap in order to achieve the best results.
??When the hydraulic O-rings through a small hole (without work), but also the need to design a length of not less than the gentle slope of 20 ° ~ 25 °.
??In the standard sealing system, the hydraulic O-rings and sealing surfaces of the parts in a period just started working with a high wear rate, this period is called the period of transition. When you enter the run-in period, the rough surface of the part will generate transition ring wear, the higher parts of the surface hardness of the seal wear faster. Once the peak parts of the surface of fibrous tissue sealing is grinding seals and parts of the surface to reach a state of equilibrium, at equilibrium, if adequately lubricated seals, seal wear will be significantly reduced.
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