揚州真空密封V法鑄造企業(yè) 服務(wù)至上江陰華天科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(chǎn)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，"><meta name="keywords" content="揚州真空密封V法鑄造企業(yè),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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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>揚州真空密封V法鑄造企業(yè),V法鑄造</p><p><span>***更新：</span>2020-11-11 14:30:11</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="ld3qmyp" 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="88sjkg8" class="page-proshow02"><p class="title">詳細說明</p><div id="obkvc8t" class="box"><p><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(chǎn)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(nèi)部組織致密性不夠，同時分型面產(chǎn)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(jīng)濟發(fā)達的長江三角洲經(jīng)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，揚州真空密封V法鑄造企業(yè)，揚州真空密封V法鑄造企業(yè)、水玻璃砂鑄造設(shè)備，揚州真空密封V法鑄造企業(yè)，輸送設(shè)備及環(huán)保設(shè)備的設(shè)計制造、安裝調(diào)試。V法鑄造是設(shè)備﹑工藝和原輔材料相互配合協(xié)調(diào)平衡的有機結(jié)合，要全盤考慮協(xié)調(diào)的系統(tǒng)工程。揚州真空密封V法鑄造企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚州真空密封V法鑄造企業(yè),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889895390625/1638242.png"></div><p> 環(huán)境保護方面 </p> <p> V法鑄造工藝不產(chǎn)生廢棄物污染，采用合理有效的除塵手段即可收集鑄造過程中產(chǎn)生的粉塵，排放量可嚴格達到國家環(huán)保要求。 </p> <p> 從國內(nèi)大部分耐磨企業(yè)的生產(chǎn)情況來看，以上優(yōu)勢并沒有完全在生產(chǎn)中發(fā)揮出來，這與我們對V法鑄造工藝的認識欠缺，對基礎(chǔ)研究的投入以及對設(shè)備輔材的配套研究不足有很大關(guān)系。 </p> <p> 4技術(shù)發(fā)展水平方面 </p> <p> V法鑄造在國內(nèi)發(fā)展的時間有限，局限于鑄造設(shè)備企業(yè)的研發(fā)創(chuàng)新能力，V法鑄造生產(chǎn)線形式單一，難以針對特殊鑄件開發(fā)**裝備，這也是V法鑄造在國內(nèi)耐磨件生產(chǎn)方面受到局限的問題之一。目前國內(nèi)多數(shù)生產(chǎn)線仍然采用傳統(tǒng)的布局形式，生產(chǎn)線效率低，控制水平差異導致生產(chǎn)過程不穩(wěn)定，產(chǎn)品質(zhì)量難以達到V法應(yīng)有的質(zhì)量水平，同時行業(yè)內(nèi)又缺乏高水平的先進V法鑄造生產(chǎn)線及相關(guān)裝備企業(yè)。揚州真空密封V法鑄造企業(yè)鋁合金多采用開放式澆注系統(tǒng)F直∶F橫∶F內(nèi)＝1∶(2～3)∶(1～5)，**小截面積比砂型鑄造大20～30%；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚州真空密封V法鑄造企業(yè),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889985097657/1146380.png"></div><p style="text-indent:25px">這就是因為局部氣體難以迅速逃逸造成局部砂型強度下降的結(jié)果。有人提出低負壓大流量的說法，明確顯示出負壓很低但是整個生產(chǎn)過程非常安全。其實這就是砂箱結(jié)構(gòu)布置合理的效果。抽氣面積越大，抽氣位置越均勻越合理，泄入氣體排出越快，真空及鑄型強度穩(wěn)定性越好，塌箱危險性也越低；另有觀點認為，只要整個鑄型處在一個負壓場下，各點的強度應(yīng)該是一樣的。實則不然。實踐表明，同一個鑄型，各點的強度是有差異的。如對于一個*有四壁抽氣的砂箱來說，鑄型的強度往往由砂箱四周向中心逐漸減弱的趨勢，而砂箱輪廓越大，這種趨勢越明顯。</p><p style="text-indent:25px">金屬軟管抽氣和管式抽氣式復合砂箱。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。鑄造的鑄件上箱型腔表面積大時，應(yīng)將鑄型傾斜澆注，使金屬液從型腔低端進入；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚州真空密封V法鑄造企業(yè),V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889742021485/560378.png"></div><p> V法鑄造工藝流程 </p> <p> <span style="font-size:12px;">其流程如下。</span> </p> <p> 1．加熱薄膜并覆膜 </p> <p> (1)薄膜材質(zhì)EVA。 </p> <p> (2)薄膜厚度0.15mm。 </p> <p> (3)加熱溫度80~120℃。 </p> <p> (4)吸氣壓強：26.7~53.4kPa。 </p> <p> 2．放置澆注系統(tǒng)并加冒口 </p> <p> (1)直澆道為進口陶管，用膠帶粘到模樣上并密封。 </p> <p> (2)冒口為木頭，用塑料包好并用膠帶纏到模樣上密封好。 </p> <p> (3)澆道和冒口都要密封好，已放置漏氣不能很好覆膜。 </p> <p> (4)澆道和冒口與模樣的連接處用刀子切口，便于后期澆注是排氣。 </p> <p> 3．噴涂料并等待涂料干燥 </p> <p> （1）涂料成分：重量比為50%的工業(yè)酒精與50%的滑石粉混合的懸濁液。 </p> <p> （2）噴漆厚度：0.04mm。 </p> <p> （3）使用要求：噴涂均勻，個別地方要補刷涂料；噴涂后要等待涂料烘干再放砂。開設(shè)補縮冒口須根據(jù)砂型鑄造工藝原則、V法鑄造工藝特點及鑄件特點等具體確定。揚州真空密封V法鑄造企業(yè)</p><p style="text-indent:25px">消除涂料、薄膜氣化產(chǎn)物對鑄型的強度與負壓度影響。揚州真空密封V法鑄造企業(yè)</p><p> 采用V法鑄造的原因 </p> <p> 根據(jù)國內(nèi)外經(jīng)驗來看，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)勢眾所周知，而質(zhì)量優(yōu)勢除了V法工藝本身具有的高表面質(zhì)量、高尺寸精度外，因為流動性的提升使得低溫澆注成為可能，可能會在細化晶粒提高耐磨性方面有一定的探索價值。 </p> <p> 我國鑄造企業(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)量對比及分析為了充分應(yīng)用好V法鑄造工藝，必須深刻認識其工藝特性，尤其是局限性?；诖?，全國消失模與V法鑄造技術(shù)**會V法課題團隊在2014年針對V法鑄造工藝和水玻璃砂鑄造工藝生產(chǎn)的耐磨鑄件進行了內(nèi)部金相組織的對比，希望能夠為行業(yè)的發(fā)展提供一定借鑒和參考。揚州真空密封V法鑄造企業(yè)</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司坐落在月城鎮(zhèn)月翔路17號，是一家專業(yè)的環(huán)保設(shè)備、氣力輸送設(shè)備、V法鑄造機械設(shè)備、消失模設(shè)備、樹脂砂設(shè)備、其他通用機械設(shè)備的技術(shù)開發(fā)、設(shè)計、制造、加工、銷售、安裝、調(diào)試、維修。產(chǎn)品與服務(wù)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)。公司。公司目前擁有較多的高技術(shù)人才，以不斷增強企業(yè)重點競爭力，加快企業(yè)技術(shù)創(chuàng)新，實現(xiàn)穩(wěn)健生產(chǎn)經(jīng)營。江陰華天科技開發(fā)有限公司主營業(yè)務(wù)涵蓋氣力輸送，V法鑄造，輸送機械，環(huán)保設(shè)備，堅持“質(zhì)量保證、良好服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。公司憑著雄厚的技術(shù)力量、飽滿的工作態(tài)度、扎實的工作作風、良好的職業(yè)道德，樹立了良好的氣力輸送，V法鑄造，輸送機械，環(huán)保設(shè)備形象，贏得了社會各界的信任和認可。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1946829.html</p></div></div></div></div></div><div id="3kl8alm" class="page-right twoColRt"><div id="vnels7j" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="tbx7sok" 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" 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