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00:33:48</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="et277nk" 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(jī): </span>0510-86273026</p><p><span>地址: </span>月城鎮(zhèn)月翔路17號</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="bf8ases" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ixj897w" class="box"><p><p>?V法鑄造的特點(diǎn)<br></p><p>V法鑄造因其獨(dú)特生產(chǎn)工藝，使得生產(chǎn)出來的鑄件表面光潔度和尺寸精度高，生產(chǎn)工序簡單，金屬利用率高，模具和砂箱壽命長，減少型芯數(shù)量使用，舊砂可基本回用，節(jié)約造型成本，少污染且勞動強(qiáng)度低，適用于鑄鐵﹑鑄鋼﹑非鐵合金等鑄件的單件小批量或機(jī)械自動化大批量得生產(chǎn)。然造型操作較復(fù)雜，從造型開始至終需抽真空，且受薄膜本質(zhì)的限制，須有樹脂砂型芯方能生產(chǎn)復(fù)雜鑄件V法鑄造所用的模樣（如圖3，無錫先進(jìn)V法鑄造工藝，無錫先進(jìn)V法鑄造工藝，無錫先進(jìn)V法鑄造工藝.1所示）在V法鑄造生產(chǎn)中占有非常重要的地位，其質(zhì)量的優(yōu)劣直接影響鑄件的質(zhì)量。目前V法鑄造所用模樣一般用木質(zhì)。V法鑄造要求模樣表面光潔﹑尺寸精度高，其工藝收縮率及拔模斜度要小于粘土砂、水玻璃砂、樹脂砂等其他鑄造工藝，一般取收縮率為0．2％～0．8％，拔模斜度在0～1°。V法造型的模樣不與型砂接觸(由薄膜和涂料隔開)，磨損和變形很小，使用壽命長，但模樣結(jié)構(gòu)設(shè)計(jì)要考慮V法的要求。?<br>而鑄鋼件多采用開放式澆注系統(tǒng)，其澆道截面積比例為F直∶F橫∶F內(nèi)＝1∶(1．2～2)∶(1．2～2) ；無錫先進(jìn)V法鑄造工藝</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫先進(jìn)V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637292187286816406/2813679.png"></div><p> V法具有與傳統(tǒng)砂型鑄造無法比擬的優(yōu)勢，其具體表現(xiàn)在以下七個(gè)方面： </p> <p> 造型易起模，模具少無磨損，金屬模具壽命長，模具可用木質(zhì)材料； </p> <p> 鑄件尺寸精度高，輪廓清晰，鑄鐵件粗糙度值達(dá)Ra18—25μm。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，曾獲2002年第四屆北京國際鑄造工業(yè)展覽會鑄件一等獎(jiǎng)。世界上叉車和其他工程車所需配重和平衡塊幾乎都是V法鑄造生產(chǎn)的；(3) 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性。試驗(yàn)表明：V法鑄造和濕型鑄造相比，金屬液流動性可提高27％。因此V法鑄造不僅能生產(chǎn)厚壁鑄件，也能生產(chǎn)薄壁鑄件。如南京東陶（TOTO）有限公司引進(jìn)日本新東鑄造生產(chǎn)線，生產(chǎn)***鑄鐵浴缸，比較大浴缸尺寸為1829mm×1067mm×650mm，鑄件重達(dá)180kg，壁厚7mm，如圖2所示。圖3 天津英昌鋼琴鑄件有限公司生產(chǎn)的鋼琴鑄鐵弦架也是V法鑄造薄壁件的典型產(chǎn)品。無錫先進(jìn)V法鑄造工藝一般灰鑄鐵推薦選用底注半封閉式澆注系統(tǒng)，其澆道截面積比例為F直∶F橫∶F內(nèi)＝1∶(1.2～1.5)∶(0.8～1)；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫先進(jìn)V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637292187267587891/127050.png"></div><p style="text-indent:25px">V法工藝生產(chǎn)耐磨鑄件的發(fā)展V法鑄造1973年起源于日本，80年代引入中國后得到了***關(guān)注，并逐步應(yīng)用于很多產(chǎn)品的生產(chǎn)。同時(shí)，該工藝傳入北美及歐洲地區(qū)，取得了長足發(fā)展，應(yīng)用范圍不斷擴(kuò)展，在叉車配重、工程機(jī)械橋殼、浴盆等領(lǐng)域獲得了非常成熟的應(yīng)用。在耐磨鑄件領(lǐng)域，V法鑄造工藝在瑞典山特維克、美國耐磨狼、美伊電鋼等**耐磨鑄件生產(chǎn)企業(yè)的使用中獲得了極大成功，并逐步成為這些企業(yè)的主流工藝。在國內(nèi)，從上世紀(jì)80年代開始有初步探索該工藝生產(chǎn)耐磨鑄件的試驗(yàn)，但是沒有成熟應(yīng)用（除鐵路道岔外）。近些年，在耐磨鑄件生產(chǎn)領(lǐng)域，V法鑄造工藝重新得到重視和關(guān)注。目前，V法鑄造在耐磨鑄件的生產(chǎn)應(yīng)用方面主要以傳統(tǒng)礦山耐磨鑄件為主，包括高錳鋼圓錐、齒板、錘頭、板錘、大型襯板等。甚至有些企業(yè)成功將立磨所用高鉻輥套鑄件采用V法鑄造工藝生產(chǎn)，取得了不錯(cuò)的效果。</p><p>?V法造型用砂箱除四壁要密封外，砂箱內(nèi)部必須裝設(shè)抽氣過濾裝置，如圖3.4所示。按抽氣方式V法砂箱可分為側(cè)面抽氣式、管式抽氣式及金屬軟管抽氣和管式抽氣式復(fù)合砂箱。<br></p><p>①側(cè)面抽氣式砂箱是用鋼板焊成的密封夾層，夾層之間形成連通的抽氣室，類似消失模用砂箱；<br></p><p>②管式抽氣砂箱。該結(jié)構(gòu)砂箱的端壁是用鋼板焊成的密封夾層，夾層的中空部分形成抽氣室，而側(cè)壁是實(shí)體的，抽氣孔為焊于兩端壁上與抽氣室連通的數(shù)根抽氣管（孔間距25 mm左右，孔徑8～10 mm），在鋼管外面包兩層120～150目的金屬網(wǎng)，以防止細(xì)紗及粉塵被吸入抽氣室。適用于面積大于1200×1200mm中大型砂箱。<br>鑄鐵件次之，有色合金**細(xì)，一般選用70目~140目或200目。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫先進(jìn)V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637292187215576172/4218113.png"></div><p style="text-indent:25px">可借鑒的參考數(shù)據(jù)是，振幅0.5mm左右，頻率不低于1500/min可以達(dá)到比較好的震實(shí)效果。不太理想的是，部分震實(shí)臺的設(shè)計(jì)參數(shù)并不滿足推薦的經(jīng)驗(yàn)數(shù)據(jù)。而鑄造企業(yè)在使用的過程中則常常發(fā)現(xiàn)，震實(shí)臺激振力不夠或過強(qiáng)，振幅不足或過大等一系列問題。這就是為什么同樣的鑄件，同樣的砂箱，同樣的模具，在不同的廠家，震實(shí)時(shí)間，震實(shí)效果有差異的原因。更有甚者，震實(shí)臺振動電機(jī)缺乏基本的變頻功能；哪怕具備變頻特性，也不根據(jù)震實(shí)臺負(fù)載的變化合理調(diào)整頻率，激振力等參數(shù)，以至于震實(shí)臺發(fā)揮不了應(yīng)有的作用。正確選擇真空泵以及合理的真空系統(tǒng)是保證V法鑄型穩(wěn)定負(fù)壓度的前提。無錫先進(jìn)V法鑄造工藝</p><p style="text-indent:25px">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。無錫先進(jìn)V法鑄造工藝</p><p> 自主創(chuàng)新、擁有自主知識產(chǎn)權(quán)的大型V法造型線 </p> <p> 國內(nèi)生產(chǎn)大型V法造型線的公司有青島雙星機(jī)械總公司、江陰華澳機(jī)電設(shè)計(jì)研究所和江陰市鑄造設(shè)備廠等。2007年青島雙星機(jī)械總公司研制成功國內(nèi)首條自主創(chuàng)新、擁有自主知識產(chǎn)權(quán)的大型V法造型線，標(biāo)志著V法鑄造生產(chǎn)線依賴進(jìn)口的歷史結(jié)束。 </p> <p> 3 V法鑄造**模具企業(yè)采用CAD/CAM技術(shù) </p> <p> 干燥良好的無缺點(diǎn)木材是V法鑄造常用模具材料。金屬材料價(jià)格昂貴，而且鉆孔較困難，并不太適合用于V法模具。另外暴露于薄膜加熱器下的金屬模具受重復(fù)加熱作用，溫度上升后易粘薄膜。因此V法鑄造企業(yè)長期采用木質(zhì)材料制模，而其大多是靠模型工放樣半機(jī)械化制作。其尺寸精度較差和生產(chǎn)周期較長一直是V法鑄造的瓶頸。無錫先進(jìn)V法鑄造工藝</p><p style="text-indent:25px">江陰華天科技開發(fā)有限公司成立于2006-09-27，是一家生產(chǎn)型的公司。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)，為客戶提供質(zhì)量的產(chǎn)品和服務(wù)。公司將不斷增強(qiáng)企業(yè)核心競爭力，努力學(xué)習(xí)行業(yè)先進(jìn)知識，遵守行業(yè)規(guī)范，植根于機(jī)械及行業(yè)設(shè)備行業(yè)的發(fā)展。公司憑借深厚技術(shù)支持，年?duì)I業(yè)額度達(dá)到700-1000萬元，并與多家行業(yè)**公司建立了緊密的合作關(guān)系。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/474561.html</p></div></div></div></div></div><div id="7y8u7qn" class="page-right twoColRt"><div id="fzwy2jb" 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