揚(yáng)州質(zhì)量V法鑄造誠(chéng)信服務(wù) 江陰華天科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(dòng)性。試驗(yàn)表明：V法鑄造和濕型鑄造相比，金屬液流動(dòng)性可提高27％。因此V法鑄造不能生產(chǎn)厚壁鑄件，也能生產(chǎn)薄壁鑄件。鑄件尺寸精度高，輪廓清晰，鑄鐵件粗糙度值達(dá)Ra18—25μm，揚(yáng)州質(zhì)量V法鑄造"><meta name="keywords" content="揚(yáng)州質(zhì)量V法鑄造,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 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id="dwyacjl" class="proBig"><div id="9if23tl" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889693593750/34083.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="onfme3b" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889693593750/34083.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mqik2lx" 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>揚(yáng)州質(zhì)量V法鑄造,V法鑄造</p><p><span>***更新：</span>2021-02-01 08:09:57</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gzwyx7s" 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="nqxzrda" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="u2lgd2a" class="box"><p><p style="text-indent:25px">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(dòng)性。試驗(yàn)表明：V法鑄造和濕型鑄造相比，金屬液流動(dòng)性可提高27％。因此V法鑄造不能生產(chǎn)厚壁鑄件，也能生產(chǎn)薄壁鑄件。鑄件尺寸精度高，輪廓清晰，鑄鐵件粗糙度值達(dá)Ra18—25μm，揚(yáng)州質(zhì)量V法鑄造。叉車鑄鐵配重是V法鑄造產(chǎn)品的典型。安徽合力叉車集團(tuán)合肥鑄鍛廠生產(chǎn)的叉車配重，揚(yáng)州質(zhì)量V法鑄造，曾獲2002年第四屆北京國(guó)際鑄造工業(yè)展覽會(huì)鑄件一等獎(jiǎng)，揚(yáng)州質(zhì)量V法鑄造。世界上叉車和其他工程車所需配重和平衡塊幾乎都是采用V法鑄造生產(chǎn)的；鑄造的鑄件上箱型腔表面積大時(shí)，應(yīng)將鑄型傾斜澆注，使金屬液從型腔低端進(jìn)入；揚(yáng)州質(zhì)量V法鑄造</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚(yáng)州質(zhì)量V法鑄造,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889693593750/34083.png"></div><p> 耐火涂料的使用在V法鑄造中起到至關(guān)重要的作用。涂料層的性能不僅影響薄膜氣化氣體的遷移，而且與鑄件表面質(zhì)量密切相關(guān)。涂料載液一般選用乙醇、甲醇或異丙醇，綜合實(shí)踐一般選用乙醇含量大于95％的工業(yè)酒精，沸點(diǎn)為70℃，密度0．8g／cm，閃點(diǎn)12℃。V法鑄造用涂料應(yīng)具有以下基本要求： </p> <p> 不與塑料薄膜反應(yīng)，***無(wú)味； </p> <p> 具有好的懸浮性和強(qiáng)韌性，涂料層有高的透氣性及良好的抗機(jī)械滲透粘砂的能力； </p> <p> 較高耐火度，其中應(yīng)含有耐火度較高的礦物和耐火度相對(duì)較低、易燒結(jié)的組分，燒結(jié)形成剝離層，清理時(shí)易潰散； </p> <p> 要有較小的發(fā)氣量，良好的流動(dòng)性和觸變性； </p> <p> 較高附著力，涂料能牢固的粘附在塑料薄膜上形成致密的涂層。南京負(fù)壓V法鑄造生產(chǎn)線金屬液平穩(wěn)充型，避免沖刷鑄型或產(chǎn)生飛濺，一般采用底注半封閉式或開(kāi)放式澆注系統(tǒng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚(yáng)州質(zhì)量V法鑄造,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293890362187500/7879725.png"></div><p style="text-indent:25px">V法鑄造中多采用干式真空泵和水環(huán)真空泵，我國(guó)主要采用水環(huán)式真空泵。水環(huán)式真空泵依靠水環(huán)實(shí)現(xiàn)密封，各部件的公差較大，不怕干砂粉塵。工作時(shí)，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。穩(wěn)壓罐主要作用是穩(wěn)定真空系統(tǒng)壓力，緩沖系統(tǒng)壓力波動(dòng)對(duì)造型、澆注的影響。為了穩(wěn)定系統(tǒng)壓力，避免澆注時(shí)出現(xiàn)塌箱，應(yīng)加大穩(wěn)壓罐容積。除塵濾氣罐的主要作用是防止細(xì)砂和粉塵進(jìn)入泵內(nèi)，磨損機(jī)械零件，影響泵的正常工作。除塵濾氣罐采用介質(zhì)分離，抽吸進(jìn)來(lái)的氣體與水混合，經(jīng)過(guò)水浴，過(guò)濾氣體，下半部是水，上半部起穩(wěn)壓作用，所以盡量增大濾氣罐容積。</p><p style="text-indent:25px">江陰華天開(kāi)發(fā)有限公司V法鑄造的工藝原理：我們一般所說(shuō)的V法鑄造名稱由來(lái)其實(shí)就是以其英文名Vacuum（真空）的首字母“V”而來(lái)定義的，V法鑄造和消失模鑄造都稱為負(fù)壓鑄造。它利用塑料薄膜抽真空是干砂成型，第三代造型法（物理造型）也是因此而來(lái)。但是因?yàn)椴煌趥鹘y(tǒng)砂，它不使用粘結(jié)劑，落砂簡(jiǎn)單方便，的降低了造型材料的耗量、減少了廢砂同時(shí)也改善了勞動(dòng)條件，同時(shí)也提高了鑄件表面質(zhì)量和尺寸的精度，鑄件的生產(chǎn)能耗也降低了。所以V法鑄造是一種很有發(fā)展前途的先進(jìn)技術(shù)。實(shí)際生產(chǎn)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(fù)壓度來(lái)調(diào)節(jié)生產(chǎn)時(shí)的負(fù)壓度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚(yáng)州質(zhì)量V法鑄造,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637293889867304688/5688127.png"></div><p style="text-indent:25px">V法造型過(guò)程中，震動(dòng)是獲得高緊實(shí)度砂型的重要環(huán)節(jié)。V法鑄型的硬度和強(qiáng)度，不僅與我們常規(guī)理解中的砂箱的真空度有關(guān)系，震實(shí)效果也是很重要的一方面（如圖4所示）。在震實(shí)不夠的情況下，有時(shí)候通過(guò)高的真空度，可以獲得較高的鑄型硬度，但這只是一種假象，砂型強(qiáng)度往往是不足的。在砂型抽真空，翻轉(zhuǎn)，轉(zhuǎn)運(yùn)，合箱，澆注等過(guò)程中產(chǎn)生的波動(dòng)又會(huì)造成鑄型內(nèi)砂子形位的重新排布進(jìn)而引起鑄型強(qiáng)度，結(jié)構(gòu)尺寸等的變化。而這些變化反映到鑄件上，則表現(xiàn)出鑄件尺寸或者重量精度超差等質(zhì)量問(wèn)題。目前在震實(shí)臺(tái)設(shè)計(jì)中，對(duì)于振幅，震動(dòng)頻率，激振力及如何配置振動(dòng)電機(jī)等問(wèn)題往往模棱兩可，缺乏基本的核算依據(jù)。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。泰州實(shí)型V法鑄造裝備</p><p style="text-indent:25px">V法鑄造采用無(wú)粘接劑的干砂造型，一般要求干砂為次棱角形或圓形，粒度鑄鋼件較大。揚(yáng)州質(zhì)量V法鑄造</p><p> V法鑄造和消失模鑄造亦稱負(fù)壓鑄造，因取英文Vacuum（真空）一詞的字頭“V”而得名。它區(qū)別于傳統(tǒng)砂鑄比較大的優(yōu)點(diǎn)是不使用粘合劑，V法鑄造是利用塑料薄膜密封砂箱，靠真空抽氣系統(tǒng)抽出型內(nèi)空氣，鑄型內(nèi)外有壓力差，使干砂密實(shí)，形成所需型腔，經(jīng)下芯、合箱、澆注抽真空使鑄件凝固，解除負(fù)壓，型砂隨之潰散而獲得鑄件。 </p> <p> <br /> </p> <p> V法生產(chǎn)關(guān)鍵點(diǎn)在于選中真空抽氣系統(tǒng)，在選用真空抽氣系統(tǒng)的時(shí)候，首先要確定真空泵的容量，主要考慮以下因素：需同時(shí)在真空下工作的砂箱的尺寸和數(shù)量；同時(shí)澆注的鑄型的數(shù)量；澆注的尺寸和形狀；緊靠薄膜的鑄型表面的透氣性，它控制著通過(guò)塑料薄膜上的裂口而進(jìn)入鑄型的空氣量，因而在澆注時(shí) ，有必要使用少量的鑄型涂料，它有助于為真空機(jī)提供一個(gè)“輔助密封層”。 </p> <p> <br /> </p> <p> <br /> 揚(yáng)州質(zhì)量V法鑄造</p><p style="text-indent:25px">江陰華天科技開(kāi)發(fā)有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。公司業(yè)務(wù)分為氣力輸送，V法鑄造，輸送機(jī)械，環(huán)保設(shè)備等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造機(jī)械及行業(yè)設(shè)備良好品牌。江陰華天科技立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3109515.html</p></div></div></div></div></div><div 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