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  å½“è¶…å£°æ³¢ä½œç”¨äºŽçƒ­å¡‘æ€§çš„å¡‘æ–™æŽ¥è§¦é¢æ—¶ï¼Œä¼šäº§ç”Ÿæ¯ç§’几万次的高频振动,这ç§è¾¾åˆ°ä¸€å®šæŒ¯å¹…的高频振动,通过上焊件把超声能é‡ä¼ é€åˆ°ç„ŠåŒºï¼Œç”±äºŽç„ŠåŒºå³ä¸¤ä¸ªç„ŠæŽ¥çš„äº¤ç•Œé¢å¤„声阻大,因此会产生局部高温。åˆç”±äºŽå¡‘料导热性差,一时还ä¸èƒ½åŠæ—¶æ•£å‘,èšé›†åœ¨ç„ŠåŒºï¼Œè‡´ä½¿ä¸¤ä¸ªå¡‘料的接触é¢è¿…速熔化,加上一定压力åŽï¼Œä½¿å…¶èžåˆæˆä¸€ä½“。ç£ç„ŠæžªåŽ‚å®¶çš„å°ç¼–æé†’æ‚¨ï¼Œå½“è¶…å£°æ³¢åœæ­¢ä½œç”¨åŽï¼Œè®©åŽ‹åŠ›æŒç»­å‡ ç§’钟,使其å‡å›ºæˆåž‹ï¼Œè¿™æ ·å°±å½¢æˆä¸€ä¸ªåšå›ºçš„分å­é“¾ï¼Œè¾¾åˆ°ç„ŠæŽ¥çš„ç›®çš„ï¼Œç„ŠæŽ¥å¼ºåº¦èƒ½æŽ¥è¿‘äºŽåŽŸææ–™å¼ºåº¦ã€‚超声波塑料焊接的好åå–决于æ¢èƒ½å™¨ç„Šå¤´çš„æŒ¯å¹…,所加压力åŠç„ŠæŽ¥æ—¶é—´ç­‰ä¸‰ä¸ªå› ç´ ï¼Œç„ŠæŽ¥æ—¶é—´å’Œç„Šå¤´åŽ‹åŠ›æ˜¯å¯ä»¥è°ƒèŠ‚çš„ï¼ŒæŒ¯å¹…ç”±æ¢èƒ½å™¨å’Œå˜å¹…æ†å†³å®šã€‚这三个é‡ç›¸äº’用有个适宜值,能é‡è¶…过适宜值时,塑料的熔解é‡å°±å¤§ï¼Œç„ŠæŽ¥ç‰©æ˜“å˜å½¢;若能é‡å°ï¼Œåˆ™ä¸æ˜“焊牢,所加的压力也ä¸èƒ½è¾¾å¤§ã€‚这个压力是焊接部分的边长与边缘æ¯?nbsp;1mm的压力之积ã€?</div> <div id="1vqw39b74s" style="padding:0px;margin:0px;"> 二ã€è¶…声波塑料焊接的方æ³?</div> <div id="1vqw39b74s" style="padding:0px;margin:0px;">     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