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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>南京先進(jìn)V法鑄造工藝,V法鑄造</p><p><span>***更新：</span>2020-08-07 16:18:10</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="lkroyzb" 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="8jz3kmt" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="e8wuykr" class="box"><p><p> V法鑄造在國(guó)外的發(fā)展 </p> <p> 據(jù)1991年日本V法鑄造分會(huì)統(tǒng)計(jì)，日本從事V法鑄造的企業(yè)達(dá)149家，歐洲V法鑄造企業(yè)達(dá)40家，北美共有31家。據(jù)1995年Modern Casting統(tǒng)計(jì)，南京先進(jìn)V法鑄造工藝，日本有180家V法企業(yè)，美國(guó)有10家，歐洲有85家?？梢?jiàn)20世紀(jì)90年代，南京先進(jìn)V法鑄造工藝，V法鑄造因其固體廢棄物**少，符合節(jié)能減排的要求，南京先進(jìn)V法鑄造工藝，在發(fā)達(dá)國(guó)家受到青睞并獲得迅猛發(fā)展。進(jìn)入21世紀(jì)后，雖然V法鑄造在發(fā)達(dá)國(guó)家出現(xiàn)萎縮，但V法技術(shù)在新興國(guó)家得到長(zhǎng)足發(fā)展。 </p> <p> V法鑄造設(shè)備大型化和小型化并進(jìn) </p> <p> 目前世界比較大的V法鑄造設(shè)備公司是德國(guó)Heinrich Wagner公司與日本Sinto(新東)公司組建的Heinrich Wagner-Sinto，簡(jiǎn)稱HWS(豪斯)公司。2004年分別在俄羅斯和烏克蘭建成4工位轉(zhuǎn)盤(pán)式大型V法鑄造線，每小時(shí)生產(chǎn)20型，砂箱尺寸為3 000 mm X1 800 mmX 500 mm/500 mm，每條造型線年產(chǎn)10萬(wàn)t鐵路車(chē)輛的關(guān)鍵鑄鋼部件搖枕和側(cè)架。 </p> <p> <br /> 真空泵水環(huán)中的水溫度不能高于40℃，以便冷卻抽入的熱氣體。國(guó)內(nèi)一般選用2BE﹑SK及機(jī)械泵等。南京先進(jìn)V法鑄造工藝</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京先進(jìn)V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889895390625/1638242.png"></div><p> 關(guān)于V法鑄造工藝優(yōu)勢(shì)的討論國(guó)外典型耐磨鑄件生產(chǎn)企業(yè)實(shí)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(shì)的。具體優(yōu)勢(shì)如下： </p> <p> 1產(chǎn)品質(zhì)量方面 </p> <p> V法鑄造鑄件表面質(zhì)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(shì)；產(chǎn)品輪廓清晰，可實(shí)現(xiàn)少無(wú)拔模斜度；鋼水流動(dòng)性好，可實(shí)現(xiàn)低溫度澆注，作為提高鑄件晶粒度等級(jí)，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(dòng)強(qiáng)度低；采用干砂造型無(wú)需混砂等過(guò)程，設(shè)備投資少，砂處理簡(jiǎn)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(dòng)化程度生產(chǎn)線生產(chǎn)效率高，人均產(chǎn)量高；南京先進(jìn)V法鑄造工藝分析砂溫對(duì)砂處理設(shè)備設(shè)計(jì)和鑄件質(zhì)量控制的影響，從而科學(xué)和適宜地進(jìn)行砂溫控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京先進(jìn)V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889762324219/6573071.png"></div><p> <p> 生產(chǎn)線的工藝流程 </p> <p> 經(jīng)造型機(jī)造好的鑄型用氣吊將下箱放在合型平臺(tái)上進(jìn)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(tái)上，澆注后的砂箱經(jīng)氣動(dòng)推桿推至落砂機(jī)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(jī)運(yùn)輥道上返回至造型機(jī)旁。鑄件落至桶內(nèi)。舊砂經(jīng)振動(dòng)輸送機(jī)、斗提機(jī)、振動(dòng)篩、水冷流化床等砂處理設(shè)備進(jìn)入料斗貯存，當(dāng)造型需用砂時(shí)，舊砂經(jīng)斗提機(jī)、螺旋輸送機(jī)送入造型機(jī)砂斗里，全線各揚(yáng)塵點(diǎn)均有吸塵管道集中除塵。主機(jī)為四工位造型機(jī)，完成覆膜、噴刷涂料及放砂箱、加砂緊實(shí)和蓋膜，頂箱起模四個(gè)工位，該機(jī)由氣缸驅(qū)動(dòng)旋轉(zhuǎn)，并有可靠的定位機(jī)構(gòu)，自動(dòng)覆膜機(jī)包括自動(dòng)切膜、覆膜框水平移動(dòng)機(jī)構(gòu)，電加熱薄膜、氣動(dòng)頂型覆膜，抽真空閥及覆膜框復(fù)位等功能。四工位造型機(jī)上設(shè)有回轉(zhuǎn)式真空分配閥，跟各工位的要求自動(dòng)提供或切斷真空。整機(jī)動(dòng)作由PLC程序控制。八工位澆注轉(zhuǎn)臺(tái)及環(huán)形真空裝置。在小車(chē)上裝有8個(gè)砂箱托板組成澆注轉(zhuǎn)臺(tái)，驅(qū)動(dòng)機(jī)構(gòu)使轉(zhuǎn)臺(tái)回轉(zhuǎn)并可任意位置停機(jī)。動(dòng)作程序是將合型后的砂箱用氣吊放置澆注轉(zhuǎn)臺(tái)的托板上，待托板放滿砂箱后便可澆注，轉(zhuǎn)臺(tái)每轉(zhuǎn)一個(gè)工位砂箱必須正對(duì)著落砂機(jī)，以便氣缸推動(dòng)砂箱至落砂機(jī)的框架上脫砂、落砂前必須撤出負(fù)壓。 </p> </p> <p> <br /> </p><p> 國(guó)內(nèi)V法薄膜生產(chǎn)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(mào)有限公司等。其中，武漢恒德科技有限公司是我國(guó)比較大的V法**EVA薄膜生產(chǎn)企業(yè)，該公司現(xiàn)有4條生產(chǎn)線，具備日產(chǎn)12 t不同規(guī)格EVA薄膜的能力。 </p> <p> 該公司不斷改進(jìn)基于EVA的V法**膜，其醋酸乙烯含量(質(zhì)量分?jǐn)?shù)，下同)為18%-20%，維卡軟化點(diǎn)為70℃。添加山茶植物油提煉的外潤(rùn)滑劑等輔料，使其伸長(zhǎng)率較高，縱向達(dá)到717 % ,橫向達(dá)到589，接近日本同類(lèi)產(chǎn)品。目前，V法鑄造用EVA鑄型薄膜的行業(yè)標(biāo)準(zhǔn)正在制訂中。 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%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京先進(jìn)V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889867304688/5688127.png"></div><p style="text-indent:25px">V法鑄造是真空密封造型或負(fù)壓造型鑄造工藝的簡(jiǎn)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(shí)，形成所需型腔。其比較大優(yōu)勢(shì)是型砂不使用粘結(jié)劑，干砂回用率高達(dá)95%以上，不*節(jié)能環(huán)保、落砂簡(jiǎn)便、改善勞動(dòng)條件，而且鑄件表面品質(zhì)和尺寸精度**提高。V法鑄造是日本長(zhǎng)野縣工業(yè)試驗(yàn)所和秋田株式會(huì)社于1971年的發(fā)明專(zhuān)利。V法鑄造至今經(jīng)過(guò)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(guó)獲得了長(zhǎng)足的發(fā)展。中小消失模生產(chǎn)單位，由于鑄件不穩(wěn)定，*使用消失模鑄造工藝往往不能適應(yīng)市場(chǎng)客戶的需求。泰州優(yōu)良V法鑄造流程</p><p style="text-indent:25px">合理的鑄造工藝方案是保證覆膜成型和鑄件質(zhì)量的一個(gè)重要因素。南京先進(jìn)V法鑄造工藝</p><p> 采用V法鑄造的原因 </p> <p> 根據(jù)國(guó)內(nèi)外經(jīng)驗(yàn)來(lái)看，V法鑄造在耐磨鑄件上所具有的產(chǎn)品質(zhì)量高，環(huán)境友好的優(yōu)勢(shì)是人們選擇此工藝的重要原因之一。成本和環(huán)保方面的優(yōu)勢(shì)眾所周知，而質(zhì)量?jī)?yōu)勢(shì)除了V法工藝本身具有的高表面質(zhì)量、高尺寸精度外，因?yàn)榱鲃?dòng)性的提升使得低溫澆注成為可能，可能會(huì)在細(xì)化晶粒提高耐磨性方面有一定的探索價(jià)值。 </p> <p> 我國(guó)鑄造企業(yè)數(shù)量多，整體鑄件質(zhì)量較低，鑄造企業(yè)所面臨的環(huán)保壓力、人力成本壓力越來(lái)越大，從提升產(chǎn)品質(zhì)量控制環(huán)境污染的角度，V法鑄造工藝有望在今后引起更好的關(guān)注和更***的應(yīng)用。3 V法鑄造工藝與水玻璃砂鑄造工藝耐磨內(nèi)部組織質(zhì)量對(duì)比及分析為了充分應(yīng)用好V法鑄造工藝，必須深刻認(rèn)識(shí)其工藝特性，尤其是局限性?；诖耍珖?guó)消失模與V法鑄造技術(shù)**會(huì)V法課題團(tuán)隊(duì)在2014年針對(duì)V法鑄造工藝和水玻璃砂鑄造工藝生產(chǎn)的耐磨鑄件進(jìn)行了內(nèi)部金相組織的對(duì)比，希望能夠?yàn)樾袠I(yè)的發(fā)展提供一定借鑒和參考。南京先進(jìn)V法鑄造工藝</p><p style="text-indent:25px">江陰華天科技開(kāi)發(fā)有限公司成立于2006-09-27，注冊(cè)資本：700-1000萬(wàn)元。該公司生產(chǎn)型的公司。公司致力于為客戶提供安全、質(zhì)量有保障的質(zhì)量產(chǎn)品及服務(wù)，是一家私營(yíng)有限責(zé)任公司企業(yè)。公司始終堅(jiān)持客戶需求***的原則，致力于提供高質(zhì)量的[ "氣力輸送", "V法鑄造", "輸送機(jī)械", "環(huán)保設(shè)備" ]。江陰華天科技以創(chuàng)造***產(chǎn)品及服務(wù)的理念，打造高指標(biāo)的服務(wù)，引導(dǎo)行業(yè)的發(fā)展。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/840033.html</p></div></div></div></div></div><div id="qkmy9ja" class="page-right twoColRt"><div id="qkh2sur" class="box01 margin10 clearfix"><h3><a 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