ï»?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 遵义铔R€ åŽ‚½Ž€˜q°å„¿Ué“¸é€ å·¥è‰ºçš„区别 - 遵义市润丰源钢铁铔R€ æœ‰é™å…¬å?/title> <meta name="Keywords" content="遵义铔R€ åŽ‚"> <link type="text/css" href="/template/NEST700011/lib/base.css" rel="stylesheet"/> <link type="text/css" href="/template/NEST700011/lib/style.css" rel="stylesheet"/> <script src="/template/NEST700011/js/jquery-1.8.0.min.js"></script> <script src="/template/NEST700011/js/foucsbox.js"></script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"><ol id="rzddd"><sub id="rzddd"></sub></ol><delect id="rzddd"><p id="rzddd"><em id="rzddd"><nobr id="rzddd"></nobr></em></p></delect><pre id="rzddd"></pre><p id="rzddd"><sub id="rzddd"></sub></p><sub id="rzddd"><output id="rzddd"><form id="rzddd"><mark 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fs20">遵义铔R€ åŽ‚½Ž€˜q°å„¿Ué“¸é€ å·¥è‰ºçš„区别</h4> <h3 class="tac"><span>来源åQšwww.chicowapo.com</span><span>作者:<a href="http://www.chicowapo.com/" title="遵义铔R€ åŽ‚" target="_blank">遵义铔R€ åŽ‚</a></span><span>发布旉™—´åQ?019-06-26</span></h3> <div class="con mt10 fs14"> <p><p> <span style="font-family:SimSun;font-size:16px;">钢铁铔R€ æ˜¯ä¸€¿Ué‡å·¥å·¥è‰ºï¼Œå¯¹äºŽæˆ‘国发展å»ø™®¾æœ‰ç€è‡›_…³é‡è¦çš„推动作用,不同的铸造品有着不同的铸造工艺,今天åQ?b><a href="http://www.chicowapo.com/" target="_blank" style="font-weight:bold">遵义铔R€ åŽ‚</a></b>的小¾~–å°±¾l™å¤§å®¶è®²è®²å„¿Ué“¸é€ å·¥è‰ºçš„区别ã€?/span> </p> <p> <span style="font-family:SimSun;font-size:16px;"><img style="max-width:100%;" src="/uploads/image/20190626/20190626105950_5571.jpg" alt="" /><br /> </span> </p> <p> <span style="font-family:SimSun;font-size:16px;">一、铸造可以按金属液的‹¹‡æ³¨å·¥è‰ºåˆ†äؓ重力铔R€ å’ŒåŽ‹åŠ›é“”R€ ã€‚重力铸造是指金属液在地球重力作用下注入铸模型腔的工艺,也称‹¹‡é“¸ã€‚广义的重力铔R€ åŒ…括砂型浇铸、金属型‹¹‡é“¸ã€ç†”模铸造,泥模铔R€ ç­‰åQ›çª„义的重力铔R€ ä¸“指金属型‹¹‡é“¸ã€‚压力铸造是指金属液在其他外力(不含重力åQ‰çš„作用下注入铸模型腔型的工艺。广义的压力铔R€ åŒ…括压铸机的压力铸造和真空铔R€ ã€ä½ŽåŽ‹é“¸é€ ã€ç¦»å¿ƒé“¸é€ ç­‰åQ›çª„义的压力铔R€ ä¸“指压铸机的金属型压力铔R€ ï¼Œ½Ž€¿U°åŽ‹é“¸ã€?/span> </p> <p> <span style="font-family:SimSun;font-size:16px;">二、砂型铸造是一¿Uä»¥ç ‚作ä¸ÞZ¸»è¦é€ åž‹ææ–™åQŒåˆ¶ä½œé“¸æ¨¡çš„传统铔R€ å·¥è‰ºã€‚砂模一般采用重力铸造,有特ŒDŠè¦æ±‚时也可采用低压铔R€ ã€ç¦»å¿ƒé“¸é€ ç­‰å·¥è‰ºã€‚砂型铸造的适应性很òqѝ€‚砂型铸造用的模å…øP¼Œä»¥å‰å¤šç”¨æœ¨æåˆ¶ä½œåQŒé€šç§°æœ¨æ¨¡ã€‚此外,砂型比金属型耐火度更高,因而如铜合金和黑色金属½{‰ç†”点较高的材料也多采用˜q™ç§å·¥è‰ºã€‚但是,砂型铔R€ ä¹Ÿæœ‰ä¸€äº›ä¸­‘³ä¹‹å¤„:如每个砂质铸模只能浇注一‹Æ¡ï¼ŒèŽ·å¾—é“怚g后铸型即损坏åQŒå¿…™å»é‡æ–°é€ åž‹åQŒæ‰€ä»¥ç ‚模铸造的生äñ”效率较低åQ›åˆå› äؓ砂的整体性质软而多孔,所以砂型铸造的é“怚gž®ºå¯¸¾_‘Öº¦è¾ƒä½ŽåQŒè¡¨é¢ä¹Ÿè¾ƒç²—¾p™ã€?/span> </p> <p> <span style="font-family:SimSun;font-size:16px;">三、金属型铔R€ æ˜¯ç”¨è€çƒ­åˆé‡‘钢制作铸造用中空铸型模具的现代工艺。金属型既可采用重力铔R€ ï¼Œä¹Ÿå¯é‡‡ç”¨åŽ‹åŠ›é“”R€ ã€‚金属型的铸型模兯‚ƒ½åå¤å¤šæ¬¡ä½¿ç”¨åQŒæ¯‹¹‡æ³¨ä¸€‹Æ¡é‡‘属液åQŒå°±èŽ·å¾—一‹Æ¡é“¸ä»Óž¼Œä½¿ç”¨å¯¿å‘½å¾ˆé•¿åQŒç”Ÿäº§æ•ˆçŽ‡å¾ˆé«˜ã€‚金属型的铸件不但尺寸精度好åQŒè¡¨é¢å…‰‹zï¼Œè€Œä¸”在浇注相同金属液的情况下åQŒå…¶é“怚g强度要比砂型的更高,更不å®ÒŽ˜“损坏。因此,在大扚w‡ç”Ÿäñ”有色金属的中、小é“怚gæ—Óž¼Œåªè¦é“怚g材料的熔点不˜q‡é«˜åQŒä¸€èˆ¬éƒ½ä¼˜å…ˆé€‰ç”¨é‡‘属型铸造。但是,金属型铸造也有一些不­‘³ä¹‹å¤„:因äؓ耐热合金钢和在它上面做出中空型腔的加工都比较昂贵åQŒæ‰€ä»¥é‡‘属型的模兯‚´¹ç”¨ä¸èÔŒ¼Œä¸è¿‡æ€ÖM½“和压铸模兯‚´¹ç”¨æ¯”èµäh¥åˆ™ä¾¿å®œå¤šäº†ã€‚对ž®æ‰¹é‡ç”Ÿäº§è€Œè¨€åQŒåˆ†æ‘Šåˆ°æ¯äšg产品上的模具费用明显˜q‡é«˜åQŒä¸€èˆ¬ä¸æ˜“接受。又因äؓ金属型的模具受模å…ähæ–™å°ºå¯¸å’Œåž‹è…”加工讑֤‡ã€é“¸é€ è®¾å¤‡èƒ½åŠ›çš„限制åQŒæ‰€ä»¥å¯¹ç‰¹åˆ«å¤§çš„é“怚g也显得有些无力。因而在ž®æ‰¹é‡åŠå¤§äšg生äñ”中,很少使用金属型铸造。此外,金属型模兯‚™½ç„‰™‡‡ç”¨äº†è€çƒ­åˆé‡‘钢,但耐热能力仍有限,一般多用于铝合金、锌合金、镁合金、在铜合金的铔R€ ï¼Œè€Œç”¨äºŽé»‘色金属铸造则很少ã€?/span> </p> <p> <span style="font-family:SimSun;font-size:16px;"> 四、压铸是在压铸机上进行的金属型压力铸造,是目前生产效率较高的铔R€ å·¥è‰ºã€‚压铸机分äؓ热室压铸机和冷室压铸æœÞZ¸¤¾c…R€‚热室压铸机自动化程度高åQŒææ–™æŸè€—å°‘åQŒç”Ÿäº§æ•ˆçŽ‡æ¯”冷室压铸机更高,但受æœÞZšg耐热能力的制¾U¦ï¼Œç›®å‰˜q˜åªèƒ½ç”¨äºŽé”Œåˆé‡‘、镁合金½{‰ä½Žç†”点材料的铸件生产。当今广泛ä‹É用的铝合金压é“怚gåQŒç”±äºŽç†”点较高,只能在冷室压铸机上生产。压铸的主要特点是金属液在高压、高速下充填型腔åQŒåƈ在高压下成åŞ、凝固,压铸件的不èƒö之处是:因äؓ金属液在高压、高速下充填型腔的过½E‹ä¸­åQŒä¸å¯é¿å…åœ°æŠŠåž‹è…”中的空气夹裹在é“怚g内部åQŒåŞ成皮下气孔,所以铝合金压铸件不宜热处理åQŒé”Œåˆé‡‘压铸件不宜表面喷塑(但可å–äh¼†åQ‰ã€‚否则,é“怚g内部气孔在作上述处理加热æ—Óž¼Œž®†é‡çƒ­è†¨èƒ€è€Œè‡´ä½‰K“¸ä»¶å˜å½¢æˆ–鼓æˆö。此外,压铸件的机械切削加工余量也应取得ž®ä¸€äº›ï¼Œä¸€èˆ¬åœ¨0.5mm左右åQŒæ—¢å¯å‡è½»é“¸ä»‰™‡é‡ã€å‡ž®‘切削加工量以降低成本,又可避免½I‰K€è¡¨é¢è‡´å¯†å±‚åQŒéœ²å‡ºçš®ä¸‹æ°”孔,造成工äšg报废ã€?/span> </p></p> </div> <div class="newArtiNext mt10"><div>上一æ?<a href="141.html">皮带轮的转动优点有哪些?</a></div> <div>下一æ?<a href="139.html">遵义钢铁铔R€ åŽ‚½Ž€˜q°é’¢¾l“构屋面渗漏处理æ–ÒŽ³•</a></div> </div> <div class="tag">相关标签åQ?a href='/key.aspx?k=%e9%81%b5%e4%b9%89%e9%93%b8%e9%80%a0%e5%8e%82'>遵义铔R€ åŽ‚</a>,<a href='/key.aspx?k=%e9%93%b8%e9%80%a0%e5%8e%82'>铔R€ åŽ‚</a>,</div> 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