南通負(fù)壓V法鑄造優(yōu)點(diǎn) 服務(wù)至上江陰華天科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="V法鑄造工藝過(guò)程和特點(diǎn)1V法鑄造基本工藝過(guò)程制造帶有抽氣箱和抽氣孔模樣。烘烤薄膜并覆蓋到模樣上，抽負(fù)壓，使覆膜成形，后噴上快干涂料。將帶有過(guò)濾抽氣管的砂箱，放在已覆有薄膜的模板上。充填、振實(shí)，南通負(fù)壓V法鑄造優(yōu)點(diǎn)、刮平箱內(nèi)干砂，放上密封膜，"><meta name="keywords" content="南通負(fù)壓V法鑄造優(yōu)點(diǎn),V法鑄造"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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id="rdpbizf" class="leftbox clearfix"><h1>南通負(fù)壓V法鑄造優(yōu)點(diǎn) 服務(wù)至上江陰華天科技供應(yīng)</h1><div id="mln2ik8" class="proBig"><div id="rvxja82" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889813476563/989149.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="o2tx39c" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889813476563/989149.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mbnpbne" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>南通負(fù)壓V法鑄造優(yōu)點(diǎn),V法鑄造</p><p><span>***更新：</span>2020-11-13 08:19:01</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="xry2tfw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江陰華天科技開(kāi)發(fā)有限公司</a></p><p><span>聯(lián)系人：</span>謝經(jīng)理</p><p><span>郵箱: </span>273371292@qq.com</p><p><span>電話: </span>13961688156</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span>http://www.jy-dannier.com</p><p><span>手機(jī): </span>0510-86273026</p><p><span>地址: </span>月城鎮(zhèn)月翔路17號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="y7dmnj2" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="mkh874q" class="box"><p><p> V法鑄造工藝過(guò)程和特點(diǎn) </p> <p> 1 V法鑄造基本工藝過(guò)程 </p> <p> 制造帶有抽氣箱和抽氣孔模樣。 </p> <p> 烘烤薄膜并覆蓋到模樣上，抽負(fù)壓，使覆膜成形，后噴上快干涂料。 </p> <p> 將帶有過(guò)濾抽氣管的砂箱，放在已覆有薄膜的模板上。 </p> <p> 充填、振實(shí)，南通負(fù)壓V法鑄造優(yōu)點(diǎn)、刮平箱內(nèi)干砂，放上密封膜，抽負(fù)壓，南通負(fù)壓V法鑄造優(yōu)點(diǎn)，使鑄型內(nèi)外產(chǎn)生壓力差而緊實(shí)，。 </p> <p> 解除模樣內(nèi)真空，起模。鑄型保持負(fù)壓狀態(tài)，直到下芯，合箱，澆鑄。 </p> <p> 脫箱落砂。冷卻后，南通負(fù)壓V法鑄造優(yōu)點(diǎn)，將砂箱內(nèi)的壓力恢復(fù)到常壓狀態(tài)，砂型自動(dòng)潰散，鑄件保溫后取出，砂冷卻后返回系統(tǒng)循環(huán)使用，將鑄件取走進(jìn)入清理工部完成工藝過(guò)程。真空密封造型緊實(shí)原理是利用塑料薄膜密封砂箱，依靠真空抽出型內(nèi)的空氣造成鑄型內(nèi)外壓力差使干砂緊實(shí)。南通負(fù)壓V法鑄造優(yōu)點(diǎn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通負(fù)壓V法鑄造優(yōu)點(diǎn),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889813476563/989149.png"></div><p style="text-indent:25px">V法鑄造一般選擇用熱塑性簿膜，要求成型性好，易涂（刷）涂料，方向性小，熱塑應(yīng)力小，對(duì)熱量不敏感，燃燒時(shí)發(fā)氣量小，不產(chǎn)生有害氣體，質(zhì)優(yōu)價(jià)廉。筆者采用EVA薄膜作為V法鑄造塑料簿膜。覆膜成型時(shí)，簿膜置于加熱器下150～200mm,加熱溫度為80～120℃，加熱時(shí)間一般為20～50s。簿膜加熱至鏡面狀時(shí)應(yīng)迅速將其落下覆膜，覆膜后，須檢查簿膜是否與模樣表面緊密貼緊，是否有無(wú)孔洞或破損。對(duì)于某些難以吸膜成型的部位，采取局部強(qiáng)化抽真空措施，調(diào)節(jié)抽氣速度實(shí)現(xiàn)覆膜成型。南通覆膜砂V法鑄造設(shè)備V法鑄造是設(shè)備﹑工藝和原輔材料相互配合協(xié)調(diào)平衡的有機(jī)結(jié)合，要全盤(pán)考慮協(xié)調(diào)的系統(tǒng)工程。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通負(fù)壓V法鑄造優(yōu)點(diǎn),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889773623047/2195160.png"></div><p>?V法鑄造的特點(diǎn)<br></p><p>V法鑄造因其獨(dú)特生產(chǎn)工藝，使得生產(chǎn)出來(lái)的鑄件表面光潔度和尺寸精度高，生產(chǎn)工序簡(jiǎn)單，金屬利用率高，模具和砂箱壽命長(zhǎng)，減少型芯數(shù)量使用，舊砂可基本回用，節(jié)約造型成本，少污染且勞動(dòng)強(qiáng)度低，適用于鑄鐵﹑鑄鋼﹑非鐵合金等鑄件的單件小批量或機(jī)械自動(dòng)化大批量得生產(chǎn)。然造型操作較復(fù)雜，從造型開(kāi)始至終需抽真空，且受薄膜本質(zhì)的限制，須有樹(shù)脂砂型芯方能生產(chǎn)復(fù)雜鑄件V法鑄造所用的模樣（如圖3.1所示）在V法鑄造生產(chǎn)中占有非常重要的地位，其質(zhì)量的優(yōu)劣直接影響鑄件的質(zhì)量。目前V法鑄造所用模樣一般用木質(zhì)。V法鑄造要求模樣表面光潔﹑尺寸精度高，其工藝收縮率及拔模斜度要小于粘土砂、水玻璃砂、樹(shù)脂砂等其他鑄造工藝，一般取收縮率為0．2％～0．8％，拔模斜度在0～1°。V法造型的模樣不與型砂接觸(由薄膜和涂料隔開(kāi))，磨損和變形很小，使用壽命長(zhǎng)，但模樣結(jié)構(gòu)設(shè)計(jì)要考慮V法的要求。?<br></p><p style="text-indent:25px">可借鑒的參考數(shù)據(jù)是，振幅0.5mm左右，頻率不低于1500/min可以達(dá)到比較好的震實(shí)效果。不太理想的是，部分震實(shí)臺(tái)的設(shè)計(jì)參數(shù)并不滿足推薦的經(jīng)驗(yàn)數(shù)據(jù)。而鑄造企業(yè)在使用的過(guò)程中則常常發(fā)現(xiàn)，震實(shí)臺(tái)激振力不夠或過(guò)強(qiáng)，振幅不足或過(guò)大等一系列問(wèn)題。這就是為什么同樣的鑄件，同樣的砂箱，同樣的模具，在不同的廠家，震實(shí)時(shí)間，震實(shí)效果有差異的原因。更有甚者，震實(shí)臺(tái)振動(dòng)電機(jī)缺乏基本的變頻功能；哪怕具備變頻特性，也不根據(jù)震實(shí)臺(tái)負(fù)載的變化合理調(diào)整頻率，激振力等參數(shù)，以至于震實(shí)臺(tái)發(fā)揮不了應(yīng)有的作用。四工位造型機(jī)的旋轉(zhuǎn)由氣缸驅(qū)動(dòng)，并有可靠的定位機(jī)構(gòu)，整機(jī)動(dòng)作采用可編程控制器（即PC）程序控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通負(fù)壓V法鑄造優(yōu)點(diǎn),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889895390625/1638242.png"></div><p style="text-indent:25px">目前，大部分廠家已經(jīng)采用頂桿起模機(jī)（見(jiàn)圖6），甚至自動(dòng)化程度更高的機(jī)械手完成起模動(dòng)作（見(jiàn)圖7）。相比之前的行車(chē)起模和簡(jiǎn)單的千斤頂起模方式來(lái)說(shuō)，起模的安全性和穩(wěn)定性已經(jīng)有了很大進(jìn)步。但是，在越來(lái)越多精密鑄件成形的過(guò)程中，逐漸發(fā)現(xiàn)部分起模頂桿或者機(jī)械手的精度和強(qiáng)度問(wèn)題。主要反映在起模頂桿導(dǎo)柱導(dǎo)套所用材質(zhì)的質(zhì)量和數(shù)量不夠達(dá)標(biāo)，或者不經(jīng)過(guò)應(yīng)有的熱處理工藝，造型起模頂桿強(qiáng)度和剛性不足。再加上加工或安裝精度不夠，造成起模過(guò)程中頂桿的撓曲變形和起模不穩(wěn)，致使鑄型部分位置擦傷破損，影響鑄型完整性，造成鑄件粘砂，甚至塌箱等缺點(diǎn)。涂料是保證鑄件表面質(zhì)量，防止粘砂的關(guān)鍵；泰州覆膜砂V法鑄造效果</p><p style="text-indent:25px">而鑄鋼件多采用開(kāi)放式澆注系統(tǒng)，其澆道截面積比例為F直∶F橫∶F內(nèi)＝1∶(1．2～2)∶(1．2～2) ；南通負(fù)壓V法鑄造優(yōu)點(diǎn)</p><p> 重視原輔材料的使用 </p> <p> 原輔材料對(duì)于鑄件質(zhì)量有直接的影響，重視原輔材料的使用，理解原輔材料對(duì)工藝過(guò)程及產(chǎn)品質(zhì)量的影響，對(duì)于提升鑄件質(zhì)量具有重要意義。V法鑄造工藝特別強(qiáng)調(diào)薄膜和涂料的使用控制，而耐磨鑄件本身對(duì)冒口補(bǔ)縮要求相對(duì)也較高，因此EVA薄膜，涂料，冒口等材料的使用技術(shù)在V法鑄造耐磨件方面比較關(guān)鍵。尤其是涂料的噴涂控制和烘干技術(shù)，冒口的安放及發(fā)氣量控制，不僅影響鑄件質(zhì)量，同時(shí)關(guān)系著生產(chǎn)作業(yè)效率和生產(chǎn)組織安排。另外，陶瓷管等其他輔助材料也將對(duì)鑄件沖砂和澆注安全性有著重要的影響。 </p> <p> <br /> 南通負(fù)壓V法鑄造優(yōu)點(diǎn)</p><p style="text-indent:25px">江陰華天科技開(kāi)發(fā)有限公司發(fā)展規(guī)模團(tuán)隊(duì)不斷壯大，現(xiàn)有一支專(zhuān)業(yè)技術(shù)團(tuán)隊(duì)，各種專(zhuān)業(yè)設(shè)備齊全。江陰華天科技是江陰華天科技開(kāi)發(fā)有限公司的主營(yíng)品牌，是專(zhuān)業(yè)的環(huán)保設(shè)備、氣力輸送設(shè)備、V法鑄造機(jī)械設(shè)備、消失模設(shè)備、樹(shù)脂砂設(shè)備、其他通用機(jī)械設(shè)備的技術(shù)開(kāi)發(fā)、設(shè)計(jì)、制造、加工、銷(xiāo)售、安裝、調(diào)試、維修。產(chǎn)品與服務(wù)用于鋼鐵、有色、煤化工、石油化工、鐵路、食品、火電、鑄造等行業(yè)。公司，擁有自己**的技術(shù)體系。公司堅(jiān)持以客戶為中心、環(huán)保設(shè)備、氣力輸送設(shè)備、V法鑄造機(jī)械設(shè)備、消失模設(shè)備、樹(shù)脂砂設(shè)備、其他通用機(jī)械設(shè)備的技術(shù)開(kāi)發(fā)、設(shè)計(jì)、制造、加工、銷(xiāo)售、安裝、調(diào)試、維修。產(chǎn)品與服務(wù)用于鋼鐵、有色、煤化工、石油化工、鐵路、食品、火電、鑄造等行業(yè)。市場(chǎng)為導(dǎo)向，重信譽(yù)，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。江陰華天科技開(kāi)發(fā)有限公司主營(yíng)業(yè)務(wù)涵蓋氣力輸送，V法鑄造，輸送機(jī)械，環(huán)保設(shè)備，堅(jiān)持“質(zhì)量保證、良好服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1973053.html</p></div></div></div></div></div><div id="2dnduls" class="page-right twoColRt"><div 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