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clearfix"><h1>南通真空V法鑄造企業(yè) 誠信服務(wù) 江陰華天科技供應(yīng)</h1><div id="fjlikjg" class="proBig"><div id="txp8vxu" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889762324219/6573071.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ycev23c" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889762324219/6573071.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gf2mta2" 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>南通真空V法鑄造企業(yè),V法鑄造</p><p><span>***更新：</span>2020-08-10 04:13:00</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="zxu3ary" 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="8hovxzg" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="maspg3a" class="box"><p><p style="text-indent:25px">對于一些多筋板或具有相當(dāng)高垂直面的鑄件而言，這種擦傷鑄型的現(xiàn)象尤為普遍。而個(gè)別自動化程度很高的機(jī)械手，運(yùn)轉(zhuǎn)穩(wěn)定性差，南通真空V法鑄造企業(yè)，末端柔性不足，在運(yùn)轉(zhuǎn)過程中產(chǎn)生震蕩或者難以急停，甚至不能保證**起碼的定位及真空對接精度，直接影響鑄型在起模翻轉(zhuǎn)等過程中的安全性。隨著V法成套裝備生產(chǎn)線自動化和機(jī)械化水平的提升，對起模機(jī)構(gòu)的使用要求越來越高，南通真空V法鑄造企業(yè)。這就需要我們在這些關(guān)鍵的造型設(shè)備方面，提高設(shè)計(jì)，南通真空V法鑄造企業(yè)，制造，安裝的精度和可靠性，以充分保障造型質(zhì)量和鑄型安全。為增加干砂的堆積密度，采用高頻率低振幅的振動方式使砂箱中干砂緊實(shí)。南通真空V法鑄造企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通真空V法鑄造企業(yè),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889762324219/6573071.png"></div><p> V法鑄造用塑料薄膜厚為0.03～0.25mm。覆膜成型是將塑料薄膜加熱軟化，利用真空將薄膜吸附在凹凸不平的模樣表面上（如圖3.2所示）。由于模樣輪廓結(jié)構(gòu)復(fù)雜多樣，要求塑料薄膜具有較好的延伸性，不易產(chǎn)生折痕和破裂。塑料簿膜在模樣或芯盒內(nèi)的成型能力直接影響鑄件的表面光潔度和尺寸精度，因而V法鑄造的薄膜須具有以下要求： </p> <p> 好的延伸性，不得有氣泡滴和***等缺點(diǎn)；<span style="font-size:12px;">成型時(shí)形狀缺點(diǎn)不應(yīng)擴(kuò)展；</span><span style="font-size:12px;">覆膜成型后失去彈性；</span><span style="font-size:12px;">不允許與模樣材料粘?。?/span><span style="font-size:12px;">氣化氣體應(yīng)***。</span> 南通真空V法鑄造企業(yè)舊砂經(jīng)振動輸送機(jī)、斗提機(jī)、振動篩、水冷卻沸騰床等砂處理設(shè)備進(jìn)入料斗貯存。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通真空V法鑄造企業(yè),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889370097657/738567.png"></div><p style="text-indent:25px">而鑄型不可能是完全密封的，始終處在一種氣體泄入并被抽走的過程中。顯然，距離抽氣口越近，氣體被抽速度越快，那么從氣流角度分析，越靠近砂箱四壁和抽氣管的地方，真空保持的越穩(wěn)定，強(qiáng)度也越高。澆注之前，外界氣體泄入量往往較小，會被及時(shí)抽走，不會對鑄型強(qiáng)度造成不利影響。但是，澆注過程中，隨著大面積薄膜的燒蝕，外界氣體泄入量劇增，如果泄入的氣體不能被及時(shí)抽走，鑄型內(nèi)部氣壓上升強(qiáng)度降低，就會造成塌箱。有時(shí)候盡管砂箱已經(jīng)有四壁抽氣甚至還有少量抽氣箱帶或者抽氣管，而且真空度還很高，仍然會塌箱。</p><p> V法鑄造工藝設(shè)計(jì)簡介 </p> <p> 對于V法鑄造工藝的設(shè)計(jì)，不是只完成單個(gè)鑄件的工藝設(shè)計(jì)，應(yīng)該是先完成單個(gè)鑄件的澆冒口系統(tǒng)、砂芯設(shè)計(jì)、透氣設(shè)計(jì)、冷鐵等的設(shè)計(jì)，然后，根據(jù)工廠現(xiàn)有V法裝備的實(shí)際和生產(chǎn)效率等進(jìn)行模具的工藝布置設(shè)計(jì)，合理布置，重新進(jìn)行澆注系統(tǒng)的優(yōu)化設(shè)計(jì)。之后進(jìn)行模型體和型板上的抽氣塞設(shè)計(jì)(大小、位置、間距等設(shè)計(jì))，抽氣塞的設(shè)計(jì)必須自行進(jìn)行，不能交由模具設(shè)計(jì)和制作單位進(jìn)行，抽氣塞設(shè)計(jì)是否合理對后續(xù)生產(chǎn)中的覆膜效果影響很大，同時(shí)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(jì)工作，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(shí)際需要。在進(jìn)行砂箱設(shè)計(jì)時(shí)，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，抽氣量不足同樣造成鑄型緊實(shí)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。當(dāng)負(fù)壓度小于0.038MPa時(shí)，鑄型易發(fā)生脹箱、變形及塌砂。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通真空V法鑄造企業(yè),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293890362187500/7879725.png"></div><p style="text-indent:25px">V法造型過程中，震動是獲得高緊實(shí)度砂型的重要環(huán)節(jié)。V法鑄型的硬度和強(qiáng)度，不僅與我們常規(guī)理解中的砂箱的真空度有關(guān)系，震實(shí)效果也是很重要的一方面（如圖4所示）。在震實(shí)不夠的情況下，有時(shí)候通過高的真空度，可以獲得較高的鑄型硬度，但這只是一種假象，砂型強(qiáng)度往往是不足的。在砂型抽真空，翻轉(zhuǎn)，轉(zhuǎn)運(yùn)，合箱，澆注等過程中產(chǎn)生的波動又會造成鑄型內(nèi)砂子形位的重新排布進(jìn)而引起鑄型強(qiáng)度，結(jié)構(gòu)尺寸等的變化。而這些變化反映到鑄件上，則表現(xiàn)出鑄件尺寸或者重量精度超差等質(zhì)量問題。目前在震實(shí)臺設(shè)計(jì)中，對于振幅，震動頻率，激振力及如何配置振動電機(jī)等問題往往模棱兩可，缺乏基本的核算依據(jù)。金屬液平穩(wěn)充型，避免沖刷鑄型或產(chǎn)生飛濺，一般采用底注半封閉式或開放式澆注系統(tǒng)。南通真空V法鑄造企業(yè)</p><p style="text-indent:25px">利用短流程工藝來澆注V法鑄造中的特大件如大型配重等也引起了越來越多人的濃厚興趣。南通真空V法鑄造企業(yè)</p><p> 4．加砂造型并震實(shí) </p> <p> （1）砂子成分：以120～140目海細(xì)沙為宜。 </p> <p> （2）加砂方式：先將少量砂子加到模樣上，壓住薄膜，以保證薄膜不起皺。 </p> <p> （3）砂子處理：用過的砂子要經(jīng)過除塵和冷卻方能使用。 </p> <p> 5．起膜并放置型芯 </p> <p> （1）起膜時(shí)要掌握行車，砂箱要平起，盡量避免錯(cuò)位，錯(cuò)位要及時(shí)修復(fù)。 </p> <p> （2）型芯為樹脂砂制作，表面涂油V法涂料。樹脂砂型芯較硬，能保證不粘砂和鑄件的完整。 </p> <p> （3）型芯的位置和尺寸要正確配合型腔 </p> <p> （4）型腔內(nèi)的砂子用真空吸管抽走。 </p> <p> 6．修整型腔并合箱 </p> <p> （1）型腔的拐角、凸緣要補(bǔ)刷涂料以保證能夠鑄出完整。 </p> <p> （2）上線箱體之間放泥條來保證箱體之間的密封。 </p> <p> （3）合箱時(shí)要平起平落，不得與芯子相撞。南通真空V法鑄造企業(yè)</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司位于江蘇省無錫市，注冊資本700-1000萬元，旗下?lián)碛?1~50人***專業(yè)的員工。專業(yè)的團(tuán)隊(duì)大多數(shù)員工都有多年工作經(jīng)驗(yàn)，熟悉行業(yè)專業(yè)知識技能，致力于發(fā)展江陰華天科技的品牌。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(jì)、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)。市場為導(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。江陰華天科技始終以質(zhì)量為發(fā)展，把顧客的滿意作為公司發(fā)展的動力，致力于為顧客帶來***的[ "氣力輸送", "V法鑄造", "輸送機(jī)械", "環(huán)保設(shè)備" ]。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/865728.html</p></div></div></div></div></div><div id="bzwip8x" class="page-right twoColRt"><div id="fzbtfho" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8pw38jl" class="recomPic likePro"><a 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