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href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="lugvxzq" class="twoCol"><div id="nheq7mc" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_zzjrclsbfg/">鑄造及熱處理設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-zzjrclsbfg_zzsbev/">鑄造設(shè)備</a>?無錫真空V法鑄造裝備服務(wù)至上江陰華天科技供應(yīng)</p><div id="2nxu9fr" class="leftbox clearfix"><h1>無錫真空V法鑄造裝備服務(wù)至上江陰華天科技供應(yīng)</h1><div id="k2p7lsp" class="proBig"><div id="jifh438" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889742021485/560378.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="udk39w7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889742021485/560378.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gkmj4ey" 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>無錫真空V法鑄造裝備,V法鑄造</p><p><span>***更新：</span>2020-12-04 03:12:25</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="pjqh4my" 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(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="7r24mif" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vuw7gnu" class="box"><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，無錫真空V法鑄造裝備，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)，無錫真空V法鑄造裝備。 </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，無錫真空V法鑄造裝備，不得與芯子相撞。鑄造的鑄件上箱型腔表面積大時(shí)，應(yīng)將鑄型傾斜澆注，使金屬液從型腔低端進(jìn)入；無錫真空V法鑄造裝備</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫真空V法鑄造裝備,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889742021485/560378.png"></div><p style="text-indent:25px">這就是因?yàn)榫植繗怏w難以迅速逃逸造成局部砂型強(qiáng)度下降的結(jié)果。有人提出低負(fù)壓大流量的說法，明確顯示出負(fù)壓很低但是整個(gè)生產(chǎn)過程非常安全。其實(shí)這就是砂箱結(jié)構(gòu)布置合理的效果。抽氣面積越大，抽氣位置越均勻越合理，泄入氣體排出越快，真空及鑄型強(qiáng)度穩(wěn)定性越好，塌箱危險(xiǎn)性也越低；另有觀點(diǎn)認(rèn)為，只要整個(gè)鑄型處在一個(gè)負(fù)壓場(chǎng)下，各點(diǎn)的強(qiáng)度應(yīng)該是一樣的。實(shí)則不然。實(shí)踐表明，同一個(gè)鑄型，各點(diǎn)的強(qiáng)度是有差異的。如對(duì)于一個(gè)*有四壁抽氣的砂箱來說，鑄型的強(qiáng)度往往由砂箱四周向中心逐漸減弱的趨勢(shì)，而砂箱輪廓越大，這種趨勢(shì)越明顯。無錫真空V法鑄造裝備V法鑄造型腔透氣性差，需要開設(shè)通氣孔，通氣孔的截面積與澆注系統(tǒng)的**小截面積比例控制在（1～5）∶1；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫真空V法鑄造裝備,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889931113282/8104857.png"></div><p> 重視系統(tǒng)化工程的設(shè)計(jì) </p> <p> 耐磨鑄造車間的建設(shè)是一個(gè)系統(tǒng)工程，除了生產(chǎn)設(shè)備本身外，車間布局物流設(shè)計(jì)，原輔材料的配套，熱處理系統(tǒng)的配套，機(jī)加工設(shè)備的配套等都要作為系統(tǒng)的一部分考慮。 </p> <p> 以砂箱的周轉(zhuǎn)為例，耐磨鑄件由于保溫冷卻時(shí)間長(zhǎng)，在一定程度上限制了砂箱的流轉(zhuǎn)速度，企業(yè)訂購大量砂箱不***增加了企業(yè)成本，而且造成管理使用上的困難?？赏ㄟ^采用建設(shè)冷卻立體庫，設(shè)計(jì)冷卻托盤的方式加快砂箱流轉(zhuǎn)，同時(shí)節(jié)約生產(chǎn)場(chǎng)地。標(biāo)準(zhǔn)化托盤的設(shè)計(jì)和制作，滿足叉車運(yùn)輸條件，并不額外增加過多的勞動(dòng)力，實(shí)現(xiàn)了工藝生產(chǎn)的要求，降低了設(shè)備投資成本，同時(shí)提高的系統(tǒng)運(yùn)行效率。 </p><p style="text-indent:25px">目前，大部分廠家已經(jīng)采用頂桿起模機(jī)（見圖6），甚至自動(dòng)化程度更高的機(jī)械手完成起模動(dòng)作（見圖7）。相比之前的行車起模和簡(jiǎn)單的千斤頂起模方式來說，起模的安全性和穩(wěn)定性已經(jīng)有了很大進(jìn)步。但是，在越來越多精密鑄件成形的過程中，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)。實(shí)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(shí)的負(fù)壓度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫真空V法鑄造裝備,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889985097657/1146380.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。鋁合金多采用開放式澆注系統(tǒng)F直∶F橫∶F內(nèi)＝1∶(2～3)∶(1～5)，**小截面積比砂型鑄造大20～30%；無錫先進(jìn)V法鑄造設(shè)備</p><p style="text-indent:25px">2008年時(shí)我國(guó)鑄鐵件廠產(chǎn)量達(dá)2510萬噸，其中按短流程工藝生產(chǎn)的鑄件約占11.3%。無錫真空V法鑄造裝備</p><p> 覆膜架設(shè)計(jì)對(duì)覆膜成形的影響 </p> <p> 烤膜覆膜作為V法鑄造的第一步，直接影響著整個(gè)造型的質(zhì)量和效率。EVA薄膜只有在加熱烘烤到一定程度的時(shí)候，其延伸性也就是通常所說的覆膜成形性能才能達(dá)到比較好狀態(tài)。然而，從烘烤結(jié)束到薄膜下降至模具的過程中，EVA薄膜由于逐漸遠(yuǎn)離熱源，會(huì)很快冷卻，脫離比較好覆膜狀態(tài)。這就要求覆膜架在極短的時(shí)間內(nèi)，完成覆膜動(dòng)作。大量的工藝實(shí)踐表明，覆膜架在5s內(nèi)下行到位是**為合適的，時(shí)間越長(zhǎng)，對(duì)薄膜原有的熱態(tài)延伸性削減越大。一個(gè)簡(jiǎn)單的公式：t=s/v；（t—覆膜框行走時(shí)間；s—覆膜框行程，即EVA薄膜加熱位置與模具臺(tái)面的距離；v—覆膜框下降的平均速度）顯然，覆膜框行程和下降的速度直接影響著行走時(shí)間，也就影響著覆膜成形的質(zhì)量。無錫真空V法鑄造裝備</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。公司業(yè)務(wù)涵蓋氣力輸送，V法鑄造，輸送機(jī)械，環(huán)保設(shè)備等，價(jià)格合理，品質(zhì)有保證。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于機(jī)械及行業(yè)設(shè)備行業(yè)的發(fā)展。江陰華天科技秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2256098.html</p></div></div></div></div></div><div id="vkcjxtf" class="page-right twoColRt"><div id="23qrame" class="box01 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