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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kvwhizk" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889677343750/6918240.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="34jpqmc" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>南通實型V法鑄造,V法鑄造</p><p><span>***更新：</span>2020-12-03 00:23:23</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="jrie8mx" 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: </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="7cnyrhx" class="page-proshow02"><p class="title">詳細說明</p><div id="fi8grrx" class="box"><p><p> 耐磨鑄件是采礦、冶金、建材、電力、石化、機械、交通等重要工業(yè)領(lǐng)域的消耗品，在工業(yè)生產(chǎn)中占有重要地位。據(jù)不完全統(tǒng)計, 國內(nèi)年消耗量超過200 萬t , 目前已有近千家耐磨鑄件生產(chǎn)企業(yè), 年生產(chǎn)能力達到500 萬噸以上，南通實型V法鑄造，鑄造工藝多種多樣。 </p> <p> 耐磨鑄件工藝現(xiàn)狀 </p> <p> 目前，耐磨鑄件普遍采用水玻璃砂，堿酚醛樹脂砂鑄造工藝，也有部分采用消失模鑄造工藝。這些工藝靈活穩(wěn)定，工藝成熟度較相對較高，能夠?qū)崿F(xiàn)穩(wěn)定批量化生產(chǎn)，是耐磨鑄件生產(chǎn)的傳統(tǒng)工藝。但尤其是水玻璃砂，南通實型V法鑄造、樹脂砂工藝同時存在著勞動強度大，南通實型V法鑄造，人均生產(chǎn)效率低的弊端，在環(huán)保問題日益嚴峻、勞動力成本越來越高的***，傳統(tǒng)工藝面臨著較大的壓力。 </p> <p> 結(jié)合產(chǎn)業(yè)升級的趨勢，國內(nèi)部分企業(yè)探索V法鑄造工藝生產(chǎn)耐磨鑄件，產(chǎn)品類型以軋臼壁、破碎壁、齒板、錘頭等中大型鑄件為主，所生產(chǎn)的鑄件具有表面質(zhì)量好，尺寸精度高的優(yōu)勢，同時造型落砂等工序勞動強度低，具有相對比較好的環(huán)保優(yōu)勢。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)。南通實型V法鑄造</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通實型V法鑄造,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889677343750/6918240.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，強度也越高。澆注之前，外界氣體泄入量往往較小，會被及時抽走，不會對鑄型強度造成不利影響。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抽走，鑄型內(nèi)部氣壓上升強度降低，就會造成塌箱。有時候盡管砂箱已經(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。揚州密封V法鑄造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="南通實型V法鑄造,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889732578125/1173701.png"></div><p style="text-indent:25px">金屬軟管抽氣和管式抽氣式復(fù)合砂箱。在V法鑄造實踐中，針對以上2種砂箱存在的各種問題，國內(nèi)多數(shù)廠家采用復(fù)合砂箱，其箱壁用10mm鋼板焊接，用金屬軟管抽氣。砂箱結(jié)構(gòu)簡單，單層壁構(gòu)成，可制作尺寸較大的砂箱。為避免塌箱引起鑄型沉降和變形，設(shè)置較密箱帶。金屬管兩端與固定在砂箱上壁的真空接頭相連，抽氣時，通過軟管的各活動節(jié)的縫隙來抽吸砂粒間的空氣，同時又能阻止細砂及粉塵被吸走。因軟管間隙較大易吸人砂粒和粉塵，真空管路系統(tǒng)必須配有濾砂和水浴裝置。</p><p> 四工位轉(zhuǎn)臺式V法造型機 </p> <p> 該機組主要由轉(zhuǎn)臺（帶氣動驅(qū)動和定位機構(gòu)）、負壓分配閥、自動覆膜機、震實臺、自動雨淋式加砂機構(gòu)及貯砂斗等組成。轉(zhuǎn)臺上安放4臺造型模樣，兩組上箱，兩組下箱，分別由負壓箱、型板、模樣組合。轉(zhuǎn)臺由氣缸驅(qū)動并有兩個氣動定位銷確保轉(zhuǎn)臺定位無誤，負壓分配閥可根據(jù)各工位的抽真空要求自動抽氣，自動覆膜，是將成卷的薄膜放在托架上完成吸膜、輸送、烘烤、薄膜切斷、起箱覆膜功能。震實臺為平板式震實臺坐在四個空氣彈簧上，用振動電機激振，雨淋式加砂機構(gòu)由格子板、氣動插板閥控制加砂和關(guān)閉。整個動作程序由PLC程序控制。 </p> <p> 操作程序：Ⅰ工位：覆膜；Ⅱ工位：噴（刷）涂料，放砂箱；Ⅲ工位：加砂震實；Ⅳ工位：蓋膜頂箱起模。如***工序為下箱時，則第二工序為上箱，上、下箱在平臺上合箱后，帶著真空負壓軟管一起吊運到澆注轉(zhuǎn)臺上。 </p> <p> 江陰華天科技開發(fā)有限公司為天津耐酸泵廠設(shè)計的四工位V法造型機屬于這種類型，主要生產(chǎn)耐酸泵葉輪等不銹鋼鑄件。年產(chǎn)量600～1000t/年，砂箱內(nèi)尺寸1000×630×150/150mm，比較大砂箱尺寸1000×800×150/150mm，造型生產(chǎn)率10～15型/h。真空密封造型緊實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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通實型V法鑄造,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889867304688/5688127.png"></div><p> 4．加砂造型并震實 </p> <p> （1）砂子成分：以120～140目海細沙為宜。 </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）起膜時要掌握行車，砂箱要平起，盡量避免錯位，錯位要及時修復(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）合箱時要平起平落，不得與芯子相撞。四工位造型機的旋轉(zhuǎn)由氣缸驅(qū)動，并有可靠的定位機構(gòu)，整機動作采用可編程控制器（即PC）程序控制。無錫V法鑄造流程</p><p style="text-indent:25px">水環(huán)式真空泵依靠水環(huán)實現(xiàn)密封，各部件的公差較大，不怕干砂粉塵。南通實型V法鑄造</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)效率等進行模具的工藝布置設(shè)計，合理布置，重新進行澆注系統(tǒng)的優(yōu)化設(shè)計。之后進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)計必須自行進行，不能交由模具設(shè)計和制作單位進行，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行砂箱的設(shè)計工作，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，保證該部位的負壓滿足實際需要。在進行砂箱設(shè)計時，不能只考慮真空度是否滿足，砂箱的負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。南通實型V法鑄造</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司位于月城鎮(zhèn)月翔路17號。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下氣力輸送，V法鑄造，輸送機械，環(huán)保設(shè)備深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在機械及行業(yè)設(shè)備深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造機械及行業(yè)設(shè)備良好品牌。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”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2238042.html</p></div></div></div></div></div><div id="2c8c3kq" class="page-right twoColRt"><div id="pnt7b88" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="trsoekv" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="l3ymqvb" class="recomPic likePro"><a 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