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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>產品關鍵詞：</span>泰州真空密封V法鑄造效果,V法鑄造</p><p><span>***更新：</span>2020-11-06 02:15:40</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="swol7wt" 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="mb8rvm8" class="page-proshow02"><p class="title">詳細說明</p><div id="x78wyf9" class="box"><p><p> 重視工藝試驗和工藝過程的積累 </p> <p> 通過工藝試驗過程的開展，理解耐磨鑄件V法鑄造工藝路線，熟知工藝控制要點及比較好工藝參數(shù)，對于V法鑄造項目的順利開展具有重要意義。V法鑄造在國內推廣早期，上述環(huán)節(jié)的缺失為不少企業(yè)釀成了重大損失，目前逐漸引起越來越多企業(yè)的重視。尤其是真空的使用和控制是V法鑄造工藝有別于傳統(tǒng)砂型鑄造的重要特征，深刻的影響著產品質量和生產管理過程的控制等。從國外耐磨企業(yè)案例不難看出，在其探索過程中，同樣經過了足夠的產品生產試驗，從單件到小批量，從簡易工藝設備到大型生產線，在充分分析工藝過程的基礎上，對相應V法工藝裝備及生產線有了更充分的認識和風險預判，為后續(xù)的批量化生產奠定了基礎，泰州真空密封V法鑄造效果。提高澆注速度，泰州真空密封V法鑄造效果，加快金屬液的上升速度，泰州真空密封V法鑄造效果，縮短澆注時間，減小鑄型表面的烘烤時間，防止鑄型塌砂；泰州真空密封V法鑄造效果</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州真空密封V法鑄造效果,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889677343750/6918240.png"></div><p style="text-indent:25px">微觀上來講，砂型強度是靠砂子之間以及砂子與砂箱直接的摩擦力建立的。砂箱四壁和箱帶都對砂子有較強的摩擦力，也就加強了其附近砂型的強度。某廠在采用V法工藝生產球鐵橋殼過程中，由于砂箱未加箱檔或抽氣管，盡管系統(tǒng)真空度較高，但是鑄型強度及剛性不足，完全抵擋不住球墨鑄**固過程中的石墨化膨脹，嚴重脹箱，造成鑄件內部組織致密性不夠，同時分型面產生極大的飛邊，致使鑄件報廢。砂箱及鑄件如圖8所示。江陰華天科技開發(fā)有限公司坐落于中國經濟發(fā)達的長江三角洲經濟區(qū)中心的江蘇省江陰市，專業(yè)從事氣力輸送系統(tǒng)，V法、消失模、樹脂砂、水玻璃砂鑄造設備，輸送設備及環(huán)保設備的設計制造、安裝調試。泰州真空密封V法鑄造效果砂子的回收率很高可達95%以上，動力消耗*為濕法造型的60%，并可減少勞動力35%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州真空密封V法鑄造效果,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889985097657/1146380.png"></div><p> V法具有與傳統(tǒng)砂型鑄造無法比擬的優(yōu)勢，其具體表現(xiàn)在以下七個方面： </p> <p> 造型易起模，模具少無磨損，金屬模具壽命長，模具可用木質材料； </p> <p> 鑄件尺寸精度高，輪廓清晰，鑄鐵件粗糙度值達Ra18—25μm。叉車鑄鐵配重是V法鑄造產品的典型**。安徽合力叉車集團合肥鑄鍛廠生產的叉車配重，曾獲2002年第四屆北京國際鑄造工業(yè)展覽會鑄件一等獎。世界上叉車和其他工程車所需配重和平衡塊幾乎都是V法鑄造生產的；(3) V法干砂保溫效果和真空抽吸作用都能提高金屬液的流動性。試驗表明：V法鑄造和濕型鑄造相比，金屬液流動性可提高27％。因此V法鑄造不*能生產厚壁鑄件，也能生產薄壁鑄件。如南京東陶（TOTO）有限公司引進日本新東鑄造生產線，生產***鑄鐵浴缸，比較大浴缸尺寸為1829mm×1067mm×650mm，鑄件重達180kg，壁厚7mm，如圖2所示。圖3 天津英昌鋼琴鑄件有限公司生產的鋼琴鑄鐵弦架也是V法鑄造薄壁件的典型產品。 </p><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。 </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。鑄件質量好，尺寸精度高，輪廓清晰不易產生氣孔等缺點，可與精密鑄件媲美。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州真空密封V法鑄造效果,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889431923828/6575353.png"></div><p style="text-indent:25px">V法鑄造用的砂箱，其結構形式直接決定著砂箱內負壓場的形成和分布，也就決定著鑄型強度的大小和均勻性。但是，不少觀念錯誤的認為，只要砂箱里面能夠抽氣就行，至于怎么抽，抽多少，都無關緊要，只要不塌箱即可。所以目前，既有單純的抽氣管抽氣的砂箱，也有靠四壁抽氣的砂箱，**復雜的則有四壁抽氣并外加箱帶或抽氣管輔助的形式；似乎都達到了同樣的目的，都能生產出鑄件。然而，產生的影響卻是不一樣的。生產上習慣了用真空度來衡量或者表征鑄型的強度，認為真空度越高，鑄型強度越高，塌箱的幾率也越??；實際上，對于砂箱來說，真空的形成是氣體流動的結果，是型腔內的空氣被真空系統(tǒng)抽走之后形成的。實際生產中，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壓度來調節(jié)生產時的負壓度。泰州真空密封V法鑄造效果</p><p style="text-indent:25px">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＝1∶(1.2～1.5)∶(0.8～1)；泰州真空密封V法鑄造效果</p><p> <p> 生產線的工藝流程 </p> <p> 經造型機造好的鑄型用氣吊將下箱放在合型平臺上進行修型和下芯，而后將造好的上箱用氣吊合型并放置在澆注平臺上，澆注后的砂箱經氣動推桿推至落砂機上脫砂，人工去除塑料薄膜，落砂后的空砂箱經氣缸推送到機運輥道上返回至造型機旁。鑄件落至桶內。舊砂經振動輸送機、斗提機、振動篩、水冷流化床等砂處理設備進入料斗貯存，當造型需用砂時，舊砂經斗提機、螺旋輸送機送入造型機砂斗里，全線各揚塵點均有吸塵管道集中除塵。主機為四工位造型機，完成覆膜、噴刷涂料及放砂箱、加砂緊實和蓋膜，頂箱起模四個工位，該機由氣缸驅動旋轉，并有可靠的定位機構，自動覆膜機包括自動切膜、覆膜框水平移動機構，電加熱薄膜、氣動頂型覆膜，抽真空閥及覆膜框復位等功能。四工位造型機上設有回轉式真空分配閥，跟各工位的要求自動提供或切斷真空。整機動作由PLC程序控制。八工位澆注轉臺及環(huán)形真空裝置。在小車上裝有8個砂箱托板組成澆注轉臺，驅動機構使轉臺回轉并可任意位置停機。動作程序是將合型后的砂箱用氣吊放置澆注轉臺的托板上，待托板放滿砂箱后便可澆注，轉臺每轉一個工位砂箱必須正對著落砂機，以便氣缸推動砂箱至落砂機的框架上脫砂、落砂前必須撤出負壓。 </p> </p> <p> <br /> 泰州真空密封V法鑄造效果</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司致力于機械及行業(yè)設備，是一家生產型的公司。公司業(yè)務涵蓋氣力輸送，V法鑄造，輸送機械，環(huán)保設備等，價格合理，品質有保證。公司將不斷增強企業(yè)重點競爭力，努力學習行業(yè)知識，遵守行業(yè)規(guī)范，植根于機械及行業(yè)設備行業(yè)的發(fā)展。江陰華天科技秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”的經營理念，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/1865415.html</p></div></div></div></div></div><div id="kt32f3r" class="page-right twoColRt"><div id="rlfrtvz" class="box01 margin10 clearfix"><h3><a 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