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target="_blank">玉田县永信机械制造有限公å?/a>是国内提供等产品和服务的知名公司åQŒç‰¹æ­¤äؓ大家介绍˜q‡è¯¥å…¬å¸ç›¸å…³çš„内容,互相学习.<p style="text-indent:2em;">低压‹¹‡é“¸è¢«å¹¿æ³›è¿ç”¨äºŽé‡‘属加工工艺中,在我国现代化的工业中发挥着巨大的作用,随着低压‹¹‡é“¸åœ¨æˆ‘国的òq¿æ³›˜qç”¨åQŒå®ƒæ‰€å¸¦æ¥çš„弊端也随之暴露出来ã€?/p><p style="text-indent:2em;">  一、氧化夹æ¸?/p><p style="text-indent:2em;">  出现氧化å¤ÒŽ¸£çš„原因一般都是因为炉料的不清‹zï¼Œæˆ–者在使用的过½E‹ä¸­åQŒç‚‰æ–™çš„使用‹Æ¡æ•°˜q‡å¤šåQŒè¿˜æœ‰ä¸€ä¸ªåŽŸå› ä¹Ÿå¯ä»¥å¯ÆD‡´ä½ŽåŽ‹‹¹‡é“¸˜q‡ç¨‹ä¸­çš„氧化å¤ÒŽ¸£åQŒé‚£ž®±æ˜¯‹¹‡é“¸¾pȝ»Ÿçš„设计不良,在充型的时候设¾|®ä¸å½“ã€?/p><p style="text-indent:2em;">  二、气孔、羃å­?/p><p style="text-indent:2em;">  气孔问题在低压浇铸的˜q‡ç¨‹ä¸­æœ€å¸¸è§åQŒå®ƒå‡ºçŽ°çš„一般是ç”׃ºŽé“¸åž‹å·¥å…·çš„排气不良引èµïLš„åQŒæ¨¡å…äh¶‚料系¾lŸçš„å–äh¶‚不良åQŒå†·å´çŽ¯è®„¡½®ä¸å½“åQŒä¹Ÿå¯ä»¥å¯ÆD‡´æ°”孔、羃孔的产生ã€?/p><p style="text-indent:2em;">  三、裂¾U?/p><p style="text-indent:2em;">  低压‹¹‡é“¸çš„过½E‹ä¸­åQŒå‡ºçŽ°è£‚¾UҎ˜¯å¾ˆå¸¸è§çš„åQŒæ¨¡å…ïLš„设计不合理,ž®–角åQŒå£å¾—薄厚程度差异大都会å¯ÆD‡´è£‚纹现象的äñ”生,要想对裂¾U¹çŽ°è±¡è¿›è¡Œæ ¹é™¤ï¼Œæ”¹è¿›æ¨¡å…·çš„结构设计是必然的选择åQŒåªæœ‰æ¨¡å…ïLš„设计合理åQŒå¯¹é—®é¢˜çš„解å†Ïx‰æœ‰å¸®åŠ©ã€?/p><p style="text-indent:2em;">  低压‹¹‡é“¸æŠ€æœ¯åœ¨æˆ‘国的加工工è‰ÞZ¸­˜qç”¨çš„十分普遍,随着技术的发展åQŒå…¶ä¸­çš„弊端也日益显现出来,我们只有分析问题产生的根源浇铸,你了解低压浇铸过½E‹ä¸­å¸¸è§çš„问题吗才能更好的解决问题ã€?/p><p style="text-indent:2em;"> <span style="color:#0020FF;">比较受关注的</span><span style="color:#0020FF;">åQ?/span> </p><p style="text-indent:2em;">‹¹‡é“¸æˆåž‹ä¸€èˆ¬ä¸æ–½åŠ åŽ‹åŠ›åQŒå¯¹è®‘Ö¤‡å’Œæ¨¡å…ïLš„强度要求不高åQŒå¯¹åˆ¶å“ž®ºå¯¸é™åˆ¶è¾ƒå°åQŒåˆ¶å“ä¸­å†…应力也低。因此,生äñ”投资较少åQŒå¯åˆ¶å¾—性能优良的大型制ä»Óž¼Œä½†ç”Ÿäº§å‘¨æœŸè¾ƒé•¿ï¼Œæˆåž‹åŽé¡»˜q›è¡Œæœºæ¢°åŠ å·¥ã€‚在传统‹¹‡é“¸åŸºç¡€ä¸Šï¼Œ‹z„¡”Ÿå‡ºçŒæ³¨ã€åµŒé“¸ã€åŽ‹åŠ›æµ‡é“¸ã€æ—‹è½¬æµ‡é“¸å’Œ¼›Õd¿ƒ‹¹‡é“¸½{‰æ–¹æ³•ã€?/p><p style="text-indent:2em;">①灌注。此法与‹¹‡é“¸çš„区别在于:‹¹‡é“¸å®Œæ¯•åˆ¶å“å³ç”±æ¨¡å…·ä¸­è„±å‡ºï¼›è€ŒçŒæ³¨æ—¶æ¨¡å…·å´æ˜¯åˆ¶å“æœ¬èín的组成部分ã€?/p><p 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