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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>泰州真空密封V法鑄造原理,V法鑄造</p><p><span>***更新：</span>2020-12-03 08:15:31</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="9rfdz7f" 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="9vbbhft" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="vtz9tzz" class="box"><p><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，泰州真空密封V法鑄造原理，泰州真空密封V法鑄造原理.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，泰州真空密封V法鑄造原理，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>2008年時(shí)我國(guó)鑄鐵件廠產(chǎn)量達(dá)2510萬(wàn)噸，其中按短流程工藝生產(chǎn)的鑄件約占11.3%。泰州真空密封V法鑄造原理</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州真空密封V法鑄造原理,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889462666016/4862105.png"></div><p> V法鑄造工藝設(shè)計(jì)簡(jiǎn)介 </p> <p> 對(duì)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(duì)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(kāi)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(mǎn)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(mǎn)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(guò)程中甚至?xí)纱水a(chǎn)生砂型垮塌。揚(yáng)州質(zhì)量V法鑄造價(jià)格真空密封造型緊實(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)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州真空密封V法鑄造原理,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889677343750/6918240.png"></div><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 /> </p><p> 國(guó)內(nèi)耐磨鑄件生產(chǎn)企業(yè)對(duì)于V法鑄造工藝的理解、認(rèn)識(shí)及深層次的研究有限，對(duì)V法鑄造工藝的引入和采用相對(duì)比較盲目，缺乏循序漸進(jìn)的過(guò)程；在未經(jīng)過(guò)基本的工藝過(guò)程試驗(yàn)和未對(duì)裝備系統(tǒng)進(jìn)行必要充足認(rèn)識(shí)的基礎(chǔ)上，引入和建設(shè)的裝備及生產(chǎn)線難以很好滿(mǎn)足耐磨件V法鑄造工藝生產(chǎn)的要求，**終使得配套工裝設(shè)施勉強(qiáng)適應(yīng)工藝生產(chǎn)的需要，造成生產(chǎn)質(zhì)量上的問(wèn)題及生產(chǎn)管理上的麻煩。 </p> <p> 4.2我國(guó)國(guó)內(nèi)耐磨鑄件市場(chǎng)龐大，生產(chǎn)企業(yè)多，無(wú)序競(jìng)爭(zhēng)嚴(yán)重；耐磨鑄造企業(yè)普遍存在產(chǎn)品種類(lèi)多、批量小的特點(diǎn)，這進(jìn)一步局限了V法鑄造工藝的普及和進(jìn)步。主要原因在于上述特點(diǎn)使得企業(yè)在采用V法鑄造工藝生產(chǎn)時(shí)面臨著較高的模具成本投入，裝備通用性設(shè)計(jì)難度增加，難以實(shí)現(xiàn)批量生產(chǎn)。反觀國(guó)外一些較大的企業(yè)，生產(chǎn)集中度較高，存在批量生產(chǎn)的條件，從而在V法鑄造的使用中獲得了較好的經(jīng)濟(jì)效益。負(fù)壓澆注，有利于金屬的補(bǔ)給，鑄件冒口可減小，鑄件表面光潔，尺寸精度高，加工余量減少。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州真空密封V法鑄造原理,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889773623047/2195160.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。為增加干砂的堆積密度，采用高頻率低振幅的振動(dòng)方式使砂箱中干砂緊實(shí)。無(wú)錫真空密封V法鑄造優(yōu)點(diǎn)</p><p style="text-indent:25px">目前國(guó)內(nèi)有十多個(gè)在建的鑄造工業(yè)園區(qū)，均采用高爐—感應(yīng)爐供應(yīng)鐵液，年產(chǎn)鑄件達(dá)100多萬(wàn)噸。泰州真空密封V法鑄造原理</p><p style="text-indent:25px">對(duì)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(dòng)化程度很高的機(jī)械手，運(yùn)轉(zhuǎn)穩(wěn)定性差，末端柔性不足，在運(yùn)轉(zhuǎn)過(guò)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(duì)接精度，直接影響鑄型在起模翻轉(zhuǎn)等過(guò)程中的安全性。隨著V法成套裝備生產(chǎn)線自動(dòng)化和機(jī)械化水平的提升，對(duì)起模機(jī)構(gòu)的使用要求越來(lái)越高。這就需要我們?cè)谶@些關(guān)鍵的造型設(shè)備方面，提高設(shè)計(jì)，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。泰州真空密封V法鑄造原理</p><p style="text-indent:25px">江陰華天科技開(kāi)發(fā)有限公司致力于機(jī)械及行業(yè)設(shè)備，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。江陰華天科技擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專(zhuān)業(yè)研發(fā)團(tuán)隊(duì)，以高度的專(zhuān)注和執(zhí)著為客戶(hù)提供氣力輸送，V法鑄造，輸送機(jī)械，環(huán)保設(shè)備。江陰華天科技始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。江陰華天科技始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專(zhuān)注與執(zhí)著使江陰華天科技在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2248846.html</p></div></div></div></div></div><div id="pdbzfvt" class="page-right twoColRt"><div id="79z9vl9" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t9rx7hf" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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