O rings . dimensional checking and classification of defects
O - rings . fluorocarbon rubber 64c8 . precision class a . quality class 3
O - rings . ethylene - propylene rubber 41b8 . precision class a . performance class 3
O - rings . butadiene acrylonitrile rubber 20a8 . precision class a . quality class 3
O - rings . butadiene acrylonitrile rubber 21a7 . precision class a . quality class 3
Some bullet - nose connections have soft tips or o - rings on the nipples
O - rings . butadiene acrylonitrile rubber 20b8 . precision class a . performance class 3
The most common sealing ring of bit bearing is single o - ring , which is made of rubber
Both units are sealed by an o - ring and thereby the insert is decoupled from vibrations
Hollow metal o - ring is inhibited to contact active chemical agents , in order to prevent corrosion
用o形圈造句挺难的，這是一个万能造句的方法
Some bullet - nose connections have a soft tipped nipple or an o - ring on the nipple to improve the seal
Hollow metal o - ring is inhibited to pile up with other products , to avoid bruising , scoring and compression damage
Promote condition to prevent parching , prolong continuous working time more than one time . larger applicant scope , both thin and glutinous materials can be adapted . only o - type ring should be replaced when maintaining without heavy tools and dead angles . wash thoroughly , high efficient , far more than coil heat exchanger . heat transmit coefficient is close to plate system , producing cost is high and the floor space is large
9 series pressure cavity is made of stainless steel single unit integration structure by processing so may guarantee for the better seal performance . the characteristic of product are no o - ring , no welded , no silicon oil or other organic , structural durability ; the most apply to pump and compressor , liquid pressure and pneumatic system , go - anywhere vehicle , energy and water processing system , pressure instrument , refrigerating equipment , agricultural machinery device , locomotive braking system
By comparing between the rectangular groove and curved groove , we find that two high stress area of rectangular groove o - ring occurs during the sealing period , and the wearing on the both inside and outside diameter surfaces ; the high stress area only happens at the part area of cone shaft , and the distribution of stress is more even than the former , and the wearing is on the inside diameter surface , the improvement of its distortions makes the service life of sealing lengthen
Therefore , the common rectangular groove seals are often be changed into the curved groove with some arc degree . when the o - ring acted as sealing function is placed in the curve groove with suitable design , its stress , strain and friction are all improved so as to lengthen the service life of sealing . the finite element method has guide meaning to analyze and design of structure
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