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target="_blank"><strong>土工膜焊接机</strong></a>厂家</span><span style="font-size:16px;">超声波塑料焊接因为便利ã€å«ç”Ÿã€å¼ºåº¦è¾ƒé«˜ã€æ“控便利而得到人们的广泛é‡è§†ã€‚一般è¿ç”¨çš„超声波塑料焊机作业频率一般为20kHz,关于å°ä»¶åŠç²¾å¯†é›¶ä»¶ç„ŠæŽ¥ä¹Ÿæœ‰é‡‡ç”¨30~40kHz,75kHz,300kHz等。尽管这些焊机的作业频率己ç»è¶…过了人耳å¯å¬é˜ˆï¼?6kHz),但因为超声波焊接是è¿ç”¨é«˜é¢‘æŒ¯è¡æ¥äº§çƒ­ï¼Œè¿™ç§æŒ¯è¡åŠ¿å¿…å½¢æˆä½Žé¢‘振è¡çš„æ¿€åŠ±å’Œè°éŸ³çš„å‘作,然åŽå¼•å‘了人耳å¯å¬çš„噪音存在。研讨表明,这些高频åŠä½Žé¢‘振è¡ï¼ˆå£°éŸ³ï¼‰æœ‰æ—¶ä¼šå¼•起头疼ã€ç–²æƒ«ã€ç”šè‡³å½¢æˆçœ©æ™•ã€åŽŒæ¶ã€å逆以åŠå¬åЛ䏋é™ç­‰ä¸è‰¯å应。本文归纳实际的焊接研讨作业探究了超声波塑料焊接过程中噪音å‘作的首è¦åŽŸå› åŠæˆ–许的防止措施ã€?/span> </p> <p> <span style="font-size:16px;">ç¦å·žåœŸå·¥è†œç„ŠæŽ¥æœºåŽ‚å®¶</span><span style="font-size:16px;">超声波塑料焊接噪音的å‘作</span> </p> <p> <span style="font-size:16px;">1.声学体系自身匹é…</span> </p> <p> <span style="font-size:16px;">声学体系(æ¢èƒ½å™¨ã€å˜å¹…æ†ã€ç„Šå¤´ï¼‰ä¸‰è€…é€šè¿‡èžºæ “è¡”æŽ¥ï¼Œè¦æ±‚è°æŒ¯ä½œä¸šä¸”阻抗匹é…。但因为声学规划的粗糙性,è¦è¾¾åˆ°å½»åº•的阻抗匹é…很难实现。目å‰è¾ƒä½³çš„规划是ç†è®ºåŠ ç»éªŒã€‚当三者ä¸åŒ¹é…时,在界é¢ä¸Šå°†å‘作能é‡çš„è€—æ•£åŠæŒ¯è¡çš„ä¸ä¸€è‡´æ€§ï¼Œç„¶åŽå‘作噪音。å¦å¤–在实际的规划过程中,考虑到振幅的改æ¢ã€é˜»æŠ—匹é…,有时三者的衔接尺度ä¸å°½ç›¸åŒï¼ˆä¸ç­‰å¾„),暴露的界é¢å°†ä½œä¸ºä¸€ç§å™ªéŸ³æºï¼Œå‘空中è¾å°„超声能é‡ã€?/span> </p> <p> <span style="font-size:16px;">2.声学体系的夹æŒ?/span> </p> <p> <span style="font-size:16px;">关于</span><span style="font-size:16px;">ç¦å·žåœŸå·¥è†œç„ŠæŽ¥æœºåŽ‚å®¶</span><span style="font-size:16px;">超声焊接,焊接压力是一个必需且éžå¸¸é‡è¦çš„å·¥è‰ºå‚æ•°ã€‚首è¦å¿…须有压力æ‰å¹²å½¢æˆå·¥ä»¶çš„触摸和声波的耦åˆï¼Œæ›´é¦–è¦çš„æ˜¯åŽ‹åŠ›å†³å®šç€äº§çƒ­ã€æŽ¥å¤´çš„强度和应力状况。一般焊接压力由机架供给,与声学体系的切入点是在声学体系的振è¡èŠ‚ç‚¹ä¸Šã€‚ä¸€èˆ¬é€‰æ‹©åœ¨å˜å¹…æ†ä¸Šï¼Œæ­¤ç‚¹ç†è®ºä¸ŠæŒ¯è¡é€Ÿåº¦ä¸?。但是当规划ä¸å¦¥æˆ–在焊接过程中声学体系频率éšå·¥å†µå˜åŒ–时,å˜å¹…æ†çš„节点将会å‘作飘移。此时夹æŒç‚¹çš„æŒ¯è¡é€Ÿåº¦ä¸ç­‰äº?。这样一方而é™ä½Žäº†å£°ä¼ è¾“功率,å¦ä¸€æ–¹è€Œå› ä¸ºé«˜é¢‘振è¡ç”±å¤¹æŒç‚¹å¯¼å…¥åˆ°æœºæž¶ä¸­ï¼Œæ¿€åŠ±èµ·ç›¸å…³çš„æŒ¯è¡ï¼Œç„¶åŽå¼•å‘噪音呈现ã€?/span> </p> <p> <span style="font-size:16px;">3.声学体系尺度</span> </p> <p> <span style="font-size:16px;">焊头的作用是将声能有效地耦åˆè¿›å…¥æ‰€ç„Šå·¥ä»¶ï¼Œå› æ­¤它的形状与尺度除与焊机è¿ç”¨é¢‘率直接相关外,还与工件上表而的几许尺度关系密切。如</span><span style="font-size:16px;">ç¦å·žåœŸå·¥è†œç„ŠæŽ¥æœºåŽ‚å®¶</span><span style="font-size:16px;">ç”µè¯æœºæ‰‹æŸ„的焊接ã€å¤§çŽ¯çš„ç„ŠæŽ¥ï¼Œè¿™äº›ç„ŠæŽ¥æ‰€éœ€æ±‚çš„ç„Šå¤´å°ºåº¦ä¸€èˆ¬å‡è¾ƒå¤§ï¼ˆå¤§äºŽæ³¢é•¿çš„1/4)ã€‚è¿™æ—¶åœ¨çºµæ³¢ä¼ è¾¾è¿‡ç¨‹ä¸­ï¼Œæ¨ªå‘æŒ¯è¡å¿…定被激起出æ¥ï¼Œç„¶åŽå‘ä½œæ··åˆæŒ¯è¡ã€‚è¿™ç§æŒ¯è¡æžæ˜“å‘作噪音。有时大环ç¼ç„ŠæŽ¥çš„ä¸­ç©ºç„Šå¤´å®£å¸ƒçš„ç©ºé¸£ä¹Ÿæ˜¯å™ªéŸ³ä¸€å¤§æ¥æºã€?/span> </p> <p> <span style="font-size:16px;">4.工件的规åˆ?/span> </p> <p> <span style="font-size:16px;">工件的空间形状也影å“ç€å™ªéŸ³çš„å‘作。研讨å‘现,在焊接过程中,在超声传达的途径上若有中断现è±?如图2),将会使焊件部分å‘ä½œè‡ªåœ¨ç«¯é¢æŒ¯è¡ï¼Œè¿™æžåˆ©äºŽå™ªéŸ³çš„å‘作ã€å¦å¤–关于薄å£ä»¶å°¤å…¶æ˜¯è¿œåœºç„Šï¼Œå³ç„Šå¤´ä¸ŽæŽ¥å¤´ä½ç½®ç›¸è·è¾ƒè¿?,接头处ä¸ä»…æœ‰çºµå‘æŒ¯è¡ï¼Œè€Œç›®è¿˜å­˜åœ¨è¾ƒå¤§çš„æ¨ªå‘ä½ç§»ï¼Œæ¿€èµ·å‡ºå…¶å®ƒè°æ³¢ï¼Œå¸¦æ¥å™ªéŸ³ã€?/span> </p> <p> <span style="font-size:16px;">5.机架底座与工件固å®?/span> </p> <p> <span style="font-size:16px;">底座也是焊机中较为关键的部件,它的好å直接影å“到焊机的功率,一起也å½±å“ç€å™ªéŸ³æ°´å¹³ã€åœ¨</span><span style="font-size:16px;">ç¦å·žåœŸå·¥è†œç„ŠæŽ¥æœºåŽ‚å®¶</span><span style="font-size:16px;">焊接过程中工件有时会å‘作相对滑动,这ä¸ä»…å½±å“了焊件的外观质é‡ï¼Œè€Œä¸”还引起较大的噪音,因此需求较好的固定装置和弹性缓冲。尤其是关于难焊资料ã€è¿ç”¨ç„ŠæŽ¥åŠŸçŽ‡è¾ƒå¤§çš„çŠ¶å†µä¸‹ï¼Œè¿™ç§æŒ¯è¡å™ªéŸ³æ›´åŠ 明显ã€?/span> </p> <p> <span style="font-size:16px;">è¶…å£°æ³¢å¡‘æ–™ç„ŠæŽ¥å™ªéŸ³æ¥æºäºŽç„Šæœºå£°å­¦ä½“系和焊件,因此为å‡å°å™ªéŸ³æ±¡æŸ“需求åˆç†çš„声学体系规划和接头方å¼è§„划。关于声学体系,一方而夹æŒç‚¹éœ€æ±‚弹性固定,一起声学体系å„部件以åŠå„部件间需求滑润过æ¸?ï¼›å¦ä¸€æ–¹è€Œå°½é‡å‡å°å£°å­¦ä½“ç³»è°æŒ¯é¢‘率的å˜åŒ–。关于大尺度焊头,需求在焊头上开凿纵å‘ç‹­ç¼ï¼Œä»¥å‡å°æ¨ªå‘振è¡å¸¦æ¥çš„噪音。关于焊件,尽é‡å‡å°‘远场焊的接头方å¼ï¼Œä¸€èµ·æ³¨æ„å°½é‡é˜²æ­¢åœ¨å£°ä¼ è¾“通é“上呈现工艺孔等。实际上有效的å‡å°å™ªéŸ³çš„办法是将焊机全关闭或焊接区关闭,这样能够将噪音é™ä½Žå‡ å分è´ã€‚è¶…å£°æ³¢ç„ŠæŽ¥æ˜¯ä¸€ç§æœ‰æ•ˆçš„焊接办法,但噪音问题应该引起é‡è§†ã€‚噪音的å‘作首è¦å› ä¸ºå£°å­¦ä½“ç³»åŠç„Šä»¶è§„划ä¸åˆç†å½¢æˆçš„,因此关于声学体系应尽é‡é‡‡ç”¨åœ†æ»‘过渡ã€å¼¹æ€§å¤¹æŒã€å¤§ç„Šå¤´å¼€æ§½ç­‰æŽªæ–½æ¥å‡å°å£°èƒ½å‘外è¾å°„呿•£ã€‚关于工件应注æ„å°½é‡é˜²æ­¢å£°æ³¢ä¸­æ–­æˆ–远场焊状况。在作业现场也能够通过焊机关闭或声å±è”½çš„办法æ¥å‡å°å™ªéŸ³æ±¡æŸ“ã€?/span> </p> <p> <span style="font-size:16px;">以上就是<a href="//goldsailusa.com" 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