無錫負壓V法鑄造優(yōu)點歡迎咨詢江陰華天科技供應-b2b網(wǎng)站_b2b電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(nèi)空氣，造成型內(nèi)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，無錫負壓V"><meta name="keywords" content="無錫負壓V法鑄造優(yōu)點,V法鑄造"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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>瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="dxprjvm" 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="i2pgipm" class="page-proshow02"><p class="title">詳細說明</p><div id="x8wyu23" class="box"><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(nèi)空氣，造成型內(nèi)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，無錫負壓V法鑄造優(yōu)點、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(jīng)過了38年的發(fā)展，同消失模鑄造一樣，無錫負壓V法鑄造優(yōu)點，作為第3代造型方法即物理硬化方法，無錫負壓V法鑄造優(yōu)點，在世界上尤其是在中國獲得了長足的發(fā)展。V法鑄造中多采用干式真空泵和水環(huán)真空泵，我國主要采用水環(huán)式真空泵。無錫負壓V法鑄造優(yōu)點</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫負壓V法鑄造優(yōu)點,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889431923828/6575353.png"></div><p> 關于V法鑄造工藝優(yōu)勢的討論國外典型耐磨鑄件生產(chǎn)企業(yè)實踐證明V法鑄造工藝在耐磨鑄件的生產(chǎn)上是成功的，也是有優(yōu)勢的。具體優(yōu)勢如下： </p> <p> 1產(chǎn)品質量方面 </p> <p> V法鑄造鑄件表面質量好，光潔度高；產(chǎn)品尺寸精度高，尤其是中大型鑄件批量化生產(chǎn)條件下的尺寸穩(wěn)定性更具優(yōu)勢；產(chǎn)品輪廓清晰，可實現(xiàn)少無拔模斜度；鋼水流動性好，可實現(xiàn)低溫度澆注，作為提高鑄件晶粒度等級，提高耐磨性的潛在手段之一； </p> <p> 2生產(chǎn)管理方面 </p> <p> V法鑄造工藝的成本更低，單位鑄件重量能耗和輔材消耗低，勞動強度低；采用干砂造型無需混砂等過程，設備投資少，砂處理簡單，舊砂回用率較高，不存在廢砂廢水等污染情況；模具磨損小，壽命高；高自動化程度生產(chǎn)線生產(chǎn)效率高，人均產(chǎn)量高；無錫優(yōu)良V法鑄造優(yōu)點涂料是保證鑄件表面質量，防止粘砂的關鍵；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫負壓V法鑄造優(yōu)點,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889985097657/1146380.png"></div><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(nèi)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(chǎn)品質量和生產(chǎn)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(jīng)過了足夠的產(chǎn)品生產(chǎn)試驗，從單件到小批量，從簡易工藝設備到大型生產(chǎn)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(chǎn)線有了更充分的認識和風險預判，為后續(xù)的批量化生產(chǎn)奠定了基礎。 </p><p style="text-indent:25px">為了保證在足夠短的時間內(nèi)覆膜完成而又不至于因速度過快對EVA薄膜造成不必要的影響，覆膜行程高度的設計也是很重要的一方面。而覆膜行程高度過高（見圖3），也正是是造成覆膜下降時間過長的主要原因。當然，覆膜行程高度，不僅要考慮覆膜時間，也要考慮模具的高度，甚至有時候也要考慮完成其他工序時工人的作業(yè)空間。這需要根據(jù)具體的鑄件產(chǎn)品和其他工裝設備的因素去綜合衡量。但是，保證覆膜框在5s內(nèi)下行至模具是明確的，也是合理的。目前國內(nèi)有十多個在建的鑄造工業(yè)園區(qū)，均采用高爐—感應爐供應鐵液，年產(chǎn)鑄件達100多萬噸。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫負壓V法鑄造優(yōu)點,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889867304688/5688127.png"></div><p> V法鑄造投資少，砂處理系統(tǒng)較為簡單，運行能耗少。 </p> <p> 與其他砂型鑄造相比，V法鑄造環(huán)境友好，生產(chǎn)現(xiàn)場噪音低，鑄件拋丸清理量減少50%以上，勞動力減少35%以上。澆注時，薄膜、涂料和樹脂砂芯產(chǎn)生的煙氣都被真空系統(tǒng)抽走，經(jīng)過干濕過濾后排空，對大氣污染少；V法固體廢棄物少，干砂再生高達95％。符合節(jié)能減排的高要求。 </p> <p> V法優(yōu)勢鮮明，其弊端也很突出： </p> <p> 受到薄膜延伸性能的局限，V法鑄造不適宜生產(chǎn)外形復雜鑄件； </p> <p> V法制芯技術還不成熟，采用樹脂砂芯或水玻璃砂芯才能鑄造內(nèi)腔復雜鑄件； </p> <p> 真空系統(tǒng)需隨時與砂型相連； </p> <p> V法鑄造不適合生產(chǎn)小型鑄件，生產(chǎn)效率難以提高； </p> <p> V法鑄鋼易出現(xiàn)氣孔和夾渣等鑄造缺點，尤其低碳鋼件有較嚴重的增碳。通過不同型砂對鑄造工藝、砂處理設備、真空設備和工藝裝備設計的影響。無錫優(yōu)良V法鑄造優(yōu)點</p><p style="text-indent:25px">提高澆注速度，加快金屬液的上升速度，縮短澆注時間，減小鑄型表面的烘烤時間，防止鑄型塌砂；無錫負壓V法鑄造優(yōu)點</p><p> <p> 生產(chǎn)線的工藝流程 </p> <p> 經(jīng)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(jīng)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(jīng)氣缸推送到機運輥道上返回至造型機旁。鑄件落至桶內(nèi)。舊砂經(jīng)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(jīng)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 /> 無錫負壓V法鑄造優(yōu)點</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司創(chuàng)辦于2006-09-27，是一家生產(chǎn)型的公司。經(jīng)過多年不斷的歷練探索和創(chuàng)新發(fā)展，公司致力于為客戶提供安全、質量有保障的質量產(chǎn)品及服務，是一家私營有限責任公司企業(yè)。公司始終堅持客戶需求***的原則，致力于提供高質量的[ "氣力輸送", 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