求助:3.55mm的密封圈, 静密封槽的尺寸应该为2.9还是2.75? 内径30mm，截径3.55mm的O型圈，加一层四氟乙烯挡圈，...

3.55\u7684o\u578b\u5bc6\u5c01\u5708\u6c9f\u69fd\u5c3a\u5bf8\u5e94\u4e3a\u591a\u5c11\uff1f5\u4e2a\u5bbd\uff0c\u548c2.75\u6df1\u80fd\u8d77\u5230\u5bc6\u5c01\u4f5c\u7528\u5417\uff1f\u8c22\u8c22\u5404\u4f4d\uff01

\u5bbd\u5ea6\u57284.8-5.0\uff0c\u6df1\u5ea6\u57282.75-2.95\uff0c\u5c31OK\u4e86\uff0c\u6240\u4ee5\u4f60\u7684\u6c9f\u69fd\u5c3a\u5bf8\u8bbe\u8ba1\u7684OK

O\u578b\u5708\u662f\u9759\u5bc6\u5c01\u5427\uff1f
\u5f84\u5411\u5bc6\u5c01\uff1a30*3.55\u7684O\u578b\u5708\u6c9f\u69fd\u5c3a\u5bf8\uff1a\u69fd\u5bbd4.7\uff1b\u69fd\u6df12.8\uff1b\u6863\u5708\uff1a\u5185\u5f84*\uff08\u5185\u5f84+2\u69fd\u6df1\uff09*\uff086.2-4.7\uff09
\u8f74\u5411\u5bc6\u5c01\uff1a30*3.55\u7684O\u578b\u5708\u6c9f\u69fd\u5c3a\u5bf8\uff1a\u69fd\u5bbd5.0\uff1b\u69fd\u6df12.7\uff1b\u6863\u5708\uff1a\u5185\u5f84*\uff08\u5185\u5f84+2\u69fd\u6df1\uff09*\uff086.2-5.0\uff09

3.55mm的密封圈, 静密封槽的尺寸应该是2.75;
压缩率=(3.55-2.75)/3.55=22.5%

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