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液压¾pÈ»Ÿç›¸å¯¹˜q动副表é¢çš„¾_—糙度过高或出现轴å‘划伤时将产生泄æ¼;¾_—糙度过低,辑ֈ°é•œé¢æ—¶å¯†ž®åœˆçš„唇边会ž®†æÑa膜刮去,使æÑa膜难以åÅžæˆï¼Œå¯†å°åˆƒå£äº§ç”Ÿé«˜æ¸©åQŒåŠ å‰§ç£¨æŸï¼Œæ‰€ä»¥å¯†ž®è¡¨é¢çš„¾_—糙度ä¸å¯è¿‡é«˜ä¹Ÿä¸èƒ½˜q‡ä½Žã€‚与密å°åœˆæŽ¥è§¦çš„æ»‘动é¢ä¸€å®šå¥½æœ‰è¾ƒä½Žçš„¾_—糙度,液压¾~¸ã€æ»‘阀½{‰åЍ坆å°ä»¶è¡¨é¢çš„¾_—糙度应在Ra0.2~0.4Œ‘m之间åQŒä»¥ä¿è¯˜q动时滑动é¢ä¸Šçš„æ²¹è†œä¸è¢«ç ´å。当液压¾~¸ã€æ»‘阀的æ†ä»¶ä¸Šå‡ºçŽ°è½´å‘划伤æ—Óž¼Œè½»è€…å¯ç”¨é‡‘相砂¾U¸æ‰“¼‚¨ï¼Œé‡è€…应电镀修å¤ã€?</p> <p> <br /> </p> <p> (3)åˆç†è®¾è®¡å’ŒåР工坆ž®æ²Ÿæ§?</p> <p> 液压¾~¸å¯†ž®æ²Ÿæ§½çš„设计或加工的好ååQŒæ˜¯å‡å°‘泄æ¼ã€é˜²æ­¢æÑaž®è¿‡æ—©æŸå的先决æ¡äšg。如果活塞与‹zÕd¡žæ†çš„é™å¯†ž®å¤„沟槽ž®ºå¯¸åå°åQŒå¯†ž®åœˆåœ¨æ²Ÿæ§½å†…没有微å°çš„æ´»åŠ¨ä½™åœŽÍ¼Œå¯†å°åœˆçš„底部ž®×ƒ¼šå› å—å作用力的作用ä‹Éå…¶æŸåè€Œå¯¼è‡´æ¼æ²V€‚密ž®æ²Ÿæ§½çš„设计(ä¸»è¦æ˜¯æ²Ÿæ§½éƒ¨ä½çš„¾l“构形状ã€å°ºå¯¸ã€åÅžä½å…¬å·®å’Œå¯†å°é¢çš„¾_—糙度等)åQŒåº”ä¸¥æ ¼æŒ‰ç…§æ ‡å‡†è¦æ±‚˜q›è¡Œã€?</p> <p> 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