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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>南京密封V法鑄造介紹,V法鑄造</p><p><span>***更新：</span>2020-07-10 03:24:05</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="hqcew98" 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</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="xahzl9r" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="jn8hoxo" class="box"><p><p> V法鑄造工藝設(shè)計簡介 </p> <p> 對于V法鑄造工藝的設(shè)計，不是只完成單個鑄件的工藝設(shè)計，應(yīng)該是先完成單個鑄件的澆冒口系統(tǒng)、砂芯設(shè)計、透氣設(shè)計、冷鐵等的設(shè)計，然后，根據(jù)工廠現(xiàn)有V法裝備的實際和生產(chǎn)效率等進(jìn)行模具的工藝布置設(shè)計，合理布置，重新進(jìn)行澆注系統(tǒng)的優(yōu)化設(shè)計。之后進(jìn)行模型體和型板上的抽氣塞設(shè)計(大小、位置、間距等設(shè)計)，抽氣塞的設(shè)計必須自行進(jìn)行，不能交由模具設(shè)計和制作單位進(jìn)行，抽氣塞設(shè)計是否合理對后續(xù)生產(chǎn)中的覆膜效果影響很大，同時影響生產(chǎn)中抽氣塞破損、堵塞后的更換。上述工作完成之后開始進(jìn)行砂箱的設(shè)計工作，南京密封V法鑄造介紹，抽氣布局要合理，尤其是澆口和冒口附近，由于薄膜氣化和涂層受熱嚴(yán)重，真空泄漏較多，應(yīng)在該部位增大真空抽氣量，保證該部位的負(fù)壓滿足實際需要。在進(jìn)行砂箱設(shè)計時，不能只考慮真空度是否滿足，砂箱的負(fù)壓室容積必須保證足夠的抽氣量，否則，即便是真空度足夠，南京密封V法鑄造介紹，南京密封V法鑄造介紹，抽氣量不足同樣造成鑄型緊實率不足、砂型硬度不夠，澆注過程中甚至?xí)纱水a(chǎn)生砂型垮塌。真空密封造型是物理造型法，砂中無水分及其他輔料加入。南京密封V法鑄造介紹</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京密封V法鑄造介紹,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889462666016/4862105.png"></div><p> V法工藝是70年代初發(fā)明的一種新的鑄造工藝方法，近幾年在我國應(yīng)用發(fā)展的很快，已從鑄造叉車配重、浴盆等鑄鐵鑄件發(fā)展到鑄鋼、鑄銅、鑄鋁加工件。但是一些形狀比較復(fù)雜的鑄件給覆膜帶來困難，有的需配多件砂芯。影響了造型效率，增加成本，使V法鑄造工藝的推廣應(yīng)用受到限制。 </p> <p> 我們是推廣應(yīng)用V法鑄造工藝和消失模鑄造工藝的企業(yè)。我們在推廣過程中發(fā)現(xiàn)，將兩種工藝結(jié)合在一起，取長補(bǔ)短，可以簡化覆膜，提高覆膜質(zhì)量，提高鑄件質(zhì)量，減薄EVA薄膜厚度，減少砂芯用量，提高造型效率，降低V法鑄造成本，效果明顯。我們在應(yīng)用上進(jìn)行一些探討，試用，取得了明顯的效果。我們將這一工藝叫做《消失模鑄造工藝嫁接到V法鑄造工藝的新方法》供同行們參考，共同開發(fā)這一工藝。南京密封V法鑄造介紹但澆注時負(fù)壓度的變化大，澆注瞬間，負(fù)壓度下降快，澆注完畢后鑄型能恢復(fù)并保持較高的負(fù)壓度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京密封V法鑄造介紹,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889664833985/7864344.png"></div><p> 與傳統(tǒng)濕型相比，V法砂型少無型壁移動，其硬度可達(dá)90—95，由于干砂保溫時間長，冒口體積可減少5%—15%。因此V法鑄造可提高金屬液的利用率（球墨鑄鐵件提高約25%，鑄鋼件提高約20%）。V法鑄造適合生產(chǎn)球墨鑄鐵鑄件，也適合生產(chǎn)鑄鋼件。圖4為V法鑄造的球墨鑄鐵后橋。圖5為我國天瑞集團(tuán)鑄造有限公司V法鑄造的鐵道機(jī)車鑄鋼側(cè)架。 </p> <p> V法砂型處于真空，不含水份，保溫性能好，很適合生產(chǎn)小批量少無內(nèi)腔的鋁合金鑄件。日本曾采用大型V法造型機(jī)和超大砂箱（7000 mm×4000mm×1000/800mm）生產(chǎn)出鑄鋁游艇殼體（見圖6）。烏克蘭、荷蘭和美國等數(shù)家鑄造企業(yè)采用V法生產(chǎn)醫(yī)療，電子，通訊等行業(yè)用的小型鋁鑄件，其鑄件表面質(zhì)量可與金屬型鑄鋁件媲美。圖7為美國Harmony Casting公司采用V法生產(chǎn)的鑄鋁件，大平面厚度為4.7mm，局部薄至2.3mm。 </p><p> 首先，模樣作成空心，表面開設(shè)抽氣孔（抽氣孔直徑一般為0.5～2.5 mm），形成抽氣室，模樣盡量避免尖銳的棱角，較大的模樣內(nèi)部設(shè)置加強(qiáng)筋，以保證在抽氣負(fù)壓作用下，模樣不破裂或變形；其次，薄膜和模樣之間較光滑，模樣撥模斜度可適當(dāng)減??； </p> <p> 木模表面不宜涂刷漆片溶液或耐溫低于60～70℃的其它油漆，否則將烘熱的塑料薄膜覆上后會出現(xiàn)粘膜現(xiàn)象，影響拔模。 </p> <p> 模樣的制作應(yīng)充分認(rèn)識V法鑄造抽真空的特點(diǎn)及保證吸膜成型性的需要，大平板及分型面處要保證足夠的強(qiáng)度和順暢的通氣性，利用定位銷或砂胎等使模樣定位要準(zhǔn)確。實際生產(chǎn)中，一般依據(jù)真空罐上的真空表及砂箱外管道上的真空表反映的負(fù)壓度來調(diào)節(jié)生產(chǎn)時的負(fù)壓度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京密封V法鑄造介紹,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293890362187500/7879725.png"></div><p> 造型臺車移動式V法造型機(jī)組 </p> <p> 該造型機(jī)組由上箱和下箱造型。在臺車造型機(jī)上完成覆膜、噴（刷）涂料、涂料烘干，而后臺車移至砂斗下加砂振實后又移出復(fù)位蓋膜、抽真空、頂箱起模，吊車將鑄型吊走。電動臺車在固定的軌道上前后移動，臺車上裝有震實臺、負(fù)壓箱、型板及模樣。電加熱器在臺車的上部，有移動機(jī)構(gòu)可兼管2臺造型機(jī)使用，用人工烘烤覆膜，也可設(shè)計成自動加熱覆膜機(jī)。覆膜抽真空后噴（刷）涂料而后進(jìn)行涂料烘干，放置砂箱。完成上述工序后，驅(qū)動臺車至砂斗下，空氣彈簧進(jìn)氣，抬起震實臺以上部分與加砂斗的雨淋下砂口對接，驅(qū)動下砂氣缸，向砂箱加砂而后振實。當(dāng)達(dá)到所需要時間后，震實停止，震實臺下降，電動臺車移至原位，蓋膜并給鑄型抽真空，當(dāng)鑄型達(dá)到一定的緊實度后，移到頂箱機(jī)構(gòu)處進(jìn)行頂箱起模后，用吊車運(yùn)至合箱處。江陰華天科技開發(fā)有限公司為福建龍巖盛豐機(jī)械制造有限公司和中恒通（福建）機(jī)械制造有限公司設(shè)計的V法生產(chǎn)線就是采用這種形式，主要生產(chǎn)載重車后橋和制動鼓，各種叉車，裝載機(jī)及其他機(jī)械設(shè)備用平衡重類灰鑄鐵件，生產(chǎn)**10000t/年，造型生產(chǎn)率8～10型/h，比較大砂箱內(nèi)尺寸2000×1400×320/360mm。一般灰鑄鐵推薦選用底注半封閉式澆注系統(tǒng)，其澆道截面積比例為F直∶F橫∶F內(nèi)＝1∶(1.2～1.5)∶(0.8～1)；泰州先進(jìn)V法鑄造設(shè)備廠</p><p style="text-indent:25px">除塵濾氣罐采用介質(zhì)分離，抽吸進(jìn)來的氣體與水混合。南京密封V法鑄造介紹</p><p> V法鑄造工藝過程和特點(diǎn) </p> <p> 1 V法鑄造基本工藝過程 </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> 將帶有過濾抽氣管的砂箱，放在已覆有薄膜的模板上。 </p> <p> 充填、振實、刮平箱內(nèi)干砂，放上密封膜，抽負(fù)壓，使鑄型內(nèi)外產(chǎn)生壓力差而緊實，。 </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，將砂箱內(nèi)的壓力恢復(fù)到常壓狀態(tài)，砂型自動潰散，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程。南京密封V法鑄造介紹</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司創(chuàng)建于2006-09-27，注冊資金 700-1000萬元，是一家專注環(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、樹脂砂設(shè)備、其他通用機(jī)械設(shè)備的技術(shù)開發(fā)、設(shè)計、制造、加工、銷售、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)。的公司。唯才是舉，唯能是用：擁有優(yōu)秀人才11~50人和，是實現(xiàn)企業(yè)戰(zhàn)略目標(biāo)的基礎(chǔ)，是企業(yè)持續(xù)發(fā)展的動力。公司以誠信為本，業(yè)務(wù)領(lǐng)域涵蓋[ "氣力輸送", "V法鑄造", "輸送機(jī)械", "環(huán)保設(shè)備" ]，我們本著對客戶負(fù)責(zé)，對員工負(fù)責(zé)，更是對公司發(fā)展負(fù)責(zé)的態(tài)度，爭取做到讓每位客戶滿意。公司力求給客戶提供***質(zhì)量服務(wù)，我們相信誠實正直、開拓進(jìn)取地為公司發(fā)展做正確的事情，將為公司和個人帶來共同的利益和進(jìn)步。經(jīng)過幾年的發(fā)展，已成為[ "氣力輸送", "V法鑄造", "輸送機(jī)械", "環(huán)保設(shè)備" ]行業(yè)**企業(yè)。</p></p><br /><p>文章來源地址: 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