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class="home-main container clearfix"><div id="0rdu8qx" class="twoCol"><div id="w8b22gs" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_zzjrclsbfg/">鑄造及熱處理設備</a>?<a href="http://www.cdcfah.com/cp/third-zzjrclsbfg_zzsbev/">鑄造設備</a>?無錫先進V法鑄造工藝服務至上江陰華天科技供應</p><div id="qhrt4ie" class="leftbox clearfix"><h1>無錫先進V法鑄造工藝服務至上江陰華天科技供應</h1><div id="i77gswx" class="proBig"><div id="4iug9my" 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="f9sjimi" 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="jl77tyk" 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>無錫先進V法鑄造工藝,V法鑄造</p><p><span>***更新：</span>2020-07-24 02:34:18</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jqxeyc2" 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(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="hlsji23" class="page-proshow02"><p class="title">詳細說明</p><div id="s8m2aho" 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)領域的消耗品，在工業(yè)生產中占有重要地位。據(jù)不完全統(tǒng)計, 國內年消耗量超過200 萬t , 目前已有近千家耐磨鑄件生產企業(yè)，無錫先進V法鑄造工藝, 年生產能力達到500 萬噸以上，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，能夠實現(xiàn)穩(wěn)定批量化生產，是耐磨鑄件生產的傳統(tǒng)工藝。但尤其是水玻璃砂，無錫先進V法鑄造工藝、樹脂砂工藝同時存在著勞動強度大，人均生產效率低的弊端，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> 結合產業(yè)升級的趨勢，國內部分企業(yè)探索V法鑄造工藝生產耐磨鑄件，產品類型以軋臼壁、破碎壁、齒板、錘頭等中大型鑄件為主，所生產的鑄件具有表面質量好，尺寸精度高的優(yōu)勢，同時造型落砂等工序勞動強度低，無錫先進V法鑄造工藝，具有相對比較好的環(huán)保優(yōu)勢。干砂造型抽真空后減小了砂與砂之間的間隙，增加了砂與砂之間的摩擦力，提高砂強度。無錫先進V法鑄造工藝</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫先進V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889742021485/560378.png"></div><p> 首先，模樣作成空心，表面開設抽氣孔（抽氣孔直徑一般為0.5～2.5 mm），形成抽氣室，模樣盡量避免尖銳的棱角，較大的模樣內部設置加強筋，以保證在抽氣負壓作用下，模樣不破裂或變形；其次，薄膜和模樣之間較光滑，模樣撥模斜度可適當減?。?</p> <p> 木模表面不宜涂刷漆片溶液或耐溫低于60～70℃的其它油漆，否則將烘熱的塑料薄膜覆上后會出現(xiàn)粘膜現(xiàn)象，影響拔模。 </p> <p> 模樣的制作應充分認識V法鑄造抽真空的特點及保證吸膜成型性的需要，大平板及分型面處要保證足夠的強度和順暢的通氣性，利用定位銷或砂胎等使模樣定位要準確。南通真空V法鑄造介紹正確選用塑料薄膜，型砂，真空泵﹑負壓度、振動時間和結構合理的砂箱是獲得質量V法鑄件的基礎；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫先進V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889431923828/6575353.png"></div><p> 造型臺車移動式V法造型機組 </p> <p> 該造型機組由上箱和下箱造型。在臺車造型機上完成覆膜、噴（刷）涂料、涂料烘干，而后臺車移至砂斗下加砂振實后又移出復位蓋膜、抽真空、頂箱起模，吊車將鑄型吊走。電動臺車在固定的軌道上前后移動，臺車上裝有震實臺、負壓箱、型板及模樣。電加熱器在臺車的上部，有移動機構可兼管2臺造型機使用，用人工烘烤覆膜，也可設計成自動加熱覆膜機。覆膜抽真空后噴（刷）涂料而后進行涂料烘干，放置砂箱。完成上述工序后，驅動臺車至砂斗下，空氣彈簧進氣，抬起震實臺以上部分與加砂斗的雨淋下砂口對接，驅動下砂氣缸，向砂箱加砂而后振實。當達到所需要時間后，震實停止，震實臺下降，電動臺車移至原位，蓋膜并給鑄型抽真空，當鑄型達到一定的緊實度后，移到頂箱機構處進行頂箱起模后，用吊車運至合箱處。江陰華天科技開發(fā)有限公司為福建龍巖盛豐機械制造有限公司和中恒通（福建）機械制造有限公司設計的V法生產線就是采用這種形式，主要生產載重車后橋和制動鼓，各種叉車，裝載機及其他機械設備用平衡重類灰鑄鐵件，生產**10000t/年，造型生產率8～10型/h，比較大砂箱內尺寸2000×1400×320/360mm。 </p><p style="text-indent:25px">V法鑄造是真空密封造型或負壓造型鑄造工藝的簡稱，其原理是利用塑料薄膜覆模造型并密封砂箱，依靠真空泵抽出型內空氣，造成型內箱外壓力差，使干砂緊實，形成所需型腔。其比較大優(yōu)勢是型砂不使用粘結劑，干砂回用率高達95%以上，不僅節(jié)能環(huán)保、落砂簡便、改善勞動條件，而且鑄件表面品質和尺寸精度**提高。V法鑄造是日本長野縣工業(yè)試驗所和秋田株式會社于1971年的發(fā)明專利。V法鑄造至今經過了38年的發(fā)展，同消失模鑄造一樣，作為第3代造型方法即物理硬化方法，在世界上尤其是在中國獲得了長足的發(fā)展。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫先進V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889636621094/6553892.png"></div><p style="text-indent:25px">覆膜架帶動EVA薄膜下降過程中與空氣產生的對流運動必然形成對整張薄膜的浮力，進而造成薄膜的向上運動，并使薄膜自身產生一定的張力，即薄膜內部區(qū)域對外部區(qū)域的拉力作用（見圖1）。根據(jù)空氣動力學原理，對流速度越快，也就是覆膜架下降的速度越快，這種浮力越大，整張薄膜向上浮動的速度也就越大，同時，對薄膜的拉伸作用也越明顯。這種浮力不但會使EVA薄膜容易上浮并接觸到紅熱的電熱絲或者電熱管燙破，也有可能使熱態(tài)強度很低的薄膜在拉力作用下直接拉裂；采用數(shù)學模型去定量的給出覆膜框下行速度的參考值是很困難的，因為柔性極強的薄膜在覆膜框帶動下運動的受力狀態(tài)極其復雜，直接的生產調試控制速度過快是比較現(xiàn)實的辦法。值得注意的是，覆膜架下行過程中加速度太大會造成EVA薄膜強烈顫動，這往往源于氣動控制裝置穩(wěn)定性太差、速度變化過分強烈。這種不必要的震蕩對于熱態(tài)下強度很低的薄膜也是非常危險的。圖2為某生產現(xiàn)場因為覆膜框震蕩造成EVA薄膜破裂的現(xiàn)象。再生的舊砂成套設備應包括落砂，輸送、分選、過篩及砂冷卻系統(tǒng)。泰州質量V法鑄造裝備</p><p style="text-indent:25px">消除涂料、薄膜氣化產物對鑄型的強度與負壓度影響。無錫先進V法鑄造工藝</p><p> 國內V法薄膜生產企業(yè)主要有武漢恒德科技有限公司、北京華盾塑料公司、天津市萊沃商貿有限公司等。其中，武漢恒德科技有限公司是我國比較大的V法**EVA薄膜生產企業(yè)，該公司現(xiàn)有4條生產線，具備日產12 t不同規(guī)格EVA薄膜的能力。 </p> <p> 該公司不斷改進基于EVA的V法**膜，其醋酸乙烯含量(質量分數(shù)，下同)為18%-20%，維卡軟化點為70℃。添加山茶植物油提煉的外潤滑劑等輔料，使其伸長率較高，縱向達到717 % ,橫向達到589，接近日本同類產品。目前，V法鑄造用EVA鑄型薄膜的行業(yè)標準正在制訂中。無錫先進V法鑄造工藝</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司創(chuàng)立于2006-09-27，總部位于江蘇省無錫市，是一家環(huán)保設備、氣力輸送設備、V法鑄造機械設備、消失模設備、樹脂砂設備、其他通用機械設備的技術開發(fā)、設計、制造、加工、銷售、安裝、調試、維修。產品與服務用于鋼鐵、有色、煤化工、石油化工、鐵路、食品、火電、鑄造等行業(yè)。的公司。江陰華天科技作為環(huán)保設備、氣力輸送設備、V法鑄造機械設備、消失模設備、樹脂砂設備、其他通用機械設備的技術開發(fā)、設計、制造、加工、銷售、安裝、調試、維修。產品與服務用于鋼鐵、有色、煤化工、石油化工、鐵路、食品、火電、鑄造等行業(yè)。的品牌企業(yè)，為客戶提供質量的[ "氣力輸送", "V法鑄造", "輸送機械", "環(huán)保設備" ]。公司終堅持自主研發(fā)創(chuàng)新發(fā)展理念，不斷優(yōu)化的技術、產品為客戶帶來效益，目前年營業(yè)額達到700-1000萬元。江陰華天科技始終關注機械及行業(yè)設備行業(yè)。海納百川，有容乃大，國內外同行的智慧都是促使我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/690850.html</p></div></div></div></div></div><div id="8bsjqzb" class="page-right twoColRt"><div id="xj3dkw2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3szqxeq" 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" 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