Specific rubber O-ring implementation process

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2016-08-26 17:46:58: 　
Specific rubber O-ring implementation process

(1) selection of seal size φ50mmΧ3.1mm more in line with the requirements, but considering to increase seal life for all, or choose to seal φ50mmΧ3.5mm can meet the requirements of the rubber O-ring seals have a certain amount of pre-compression, so that you can increase the seal All life.

(2) in the wall of the slotted hole φ45Χ25mm cylinder head seal, the groove depth of 2.8 ~ 2.9mm, width of 3.6 ~ 3.7mm. Rubber O-ring seal compression calculation: On the cross-sectional diameter 3.5 (2.9 0.05) = 0.5 (taken with the gap 0.05mm), in line with the amount of compression of the seal reciprocates the compression rate K value of 10% to 15%.

(3) piston rod end chamfering, easy to damage the seal.

(4) when the seal head assembly should add lubricating oil, with no front repair obtuse angle thread cutter circumferential pressing to successfully enter the piston rod.

(5) test: 0.5MPa low pressure natural movement, high-pressure 6MPa movement without leakage.

(6) Before loading the rubber O-ring seal ring, check rubber O-ring seal for cracks, then gland.
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