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id="b35phhr" 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>無(wú)錫質(zhì)量V法鑄造工藝,V法鑄造</p><p><span>***更新：</span>2020-07-02 08:18:51</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="b3hnf19" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="tdzhrhh" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="xbvv5xz" class="box"><p><p> 國(guó)內(nèi)耐磨鑄件生產(chǎn)企業(yè)對(duì)于V法鑄造工藝的理解、認(rèn)識(shí)及深層次的研究有限，對(duì)V法鑄造工藝的引入和采用相對(duì)比較盲目，缺乏循序漸進(jìn)的過(guò)程；在未經(jīng)過(guò)基本的工藝過(guò)程試驗(yàn)和未對(duì)裝備系統(tǒng)進(jìn)行必要充足認(rèn)識(shí)的基礎(chǔ)上，引入和建設(shè)的裝備及生產(chǎn)線(xiàn)難以很好滿(mǎn)足耐磨件V法鑄造工藝生產(chǎn)的要求，**終使得配套工裝設(shè)施勉強(qiáng)適應(yīng)工藝生產(chǎn)的需要，造成生產(chǎn)質(zhì)量上的問(wèn)題及生產(chǎn)管理上的麻煩。 </p> <p> 4.2我國(guó)國(guó)內(nèi)耐磨鑄件市場(chǎng)龐大，生產(chǎn)企業(yè)多，無(wú)序競(jìng)爭(zhēng)嚴(yán)重；耐磨鑄造企業(yè)普遍存在產(chǎn)品種類(lèi)多、批量小的特點(diǎn)，這進(jìn)一步局限了V法鑄造工藝的普及和進(jìn)步，無(wú)錫質(zhì)量V法鑄造工藝。主要原因在于上述特點(diǎn)使得企業(yè)在采用V法鑄造工藝生產(chǎn)時(shí)面臨著較高的模具成本投入，裝備通用性設(shè)計(jì)難度增加，難以實(shí)現(xiàn)批量生產(chǎn)。反觀國(guó)外一些較大的企業(yè)，生產(chǎn)集中度較高，存在批量生產(chǎn)的條件，無(wú)錫質(zhì)量V法鑄造工藝，無(wú)錫質(zhì)量V法鑄造工藝，從而在V法鑄造的使用中獲得了較好的經(jīng)濟(jì)效益。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。無(wú)錫質(zhì)量V法鑄造工藝</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無(wú)錫質(zhì)量V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637292187174726562/2281822.png"></div><p> 美國(guó)美伊電鋼公司，作為世界**耐磨鑄件生產(chǎn)廠家，長(zhǎng)期以來(lái)采用V法鑄造工藝生產(chǎn)各類(lèi)耐磨鑄件，尤其是球磨機(jī)襯板，取得了較好的效果。同時(shí)該公司的V法鑄造生產(chǎn)線(xiàn)針對(duì)耐磨鑄件的生產(chǎn)工藝做了很多有益的改進(jìn)，在保障工藝要求順利實(shí)施的基礎(chǔ)上，既保障了產(chǎn)量，又實(shí)現(xiàn)了砂箱的合理流轉(zhuǎn)。該生產(chǎn)線(xiàn)設(shè)計(jì)合理，生產(chǎn)效率高，在生產(chǎn)線(xiàn)設(shè)計(jì)及工藝配合度上十分值得國(guó)內(nèi)相關(guān)企業(yè)借鑒。近年來(lái)，該公司通過(guò)熔煉流程的改進(jìn)及電爐的增配，實(shí)現(xiàn)了比較高160噸日產(chǎn)量的生產(chǎn)能力。 </p> <p> 除此之外，哈薩克斯坦Vostokmashzavod公司和Kazzinkmash公司、加拿大Unicast股份有限公司、烏克蘭克里沃羅格礦山設(shè)備廠等公司均采用V法鑄造工藝生產(chǎn)耐磨鑄件，取得了較好的效果。無(wú)錫先進(jìn)V法鑄造流程為增加干砂的堆積密度，采用高頻率低振幅的振動(dòng)方式使砂箱中干砂緊實(shí)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無(wú)錫質(zhì)量V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637292187282304687/1971772.png"></div><p> 2國(guó)外典型耐磨鑄件生產(chǎn)企業(yè) </p> <p> 世界**礦山機(jī)械制造商瑞典山特維克集團(tuán)，目前批量采用V法鑄造工藝生產(chǎn)耐磨鑄件。該企業(yè)于1980年***引進(jìn)V法鑄造設(shè)備，通過(guò)這套設(shè)備探索V法鑄造工藝過(guò)程及控制要領(lǐng)，提高了產(chǎn)品質(zhì)量和生產(chǎn)效率。1998年，通過(guò)引進(jìn)第二套設(shè)備，該公司將70%的產(chǎn)品轉(zhuǎn)化到V法鑄造工藝。到2000年，該公司引進(jìn)了第三套V法設(shè)備，基本徹底實(shí)現(xiàn)了新舊工藝的交替。通過(guò)長(zhǎng)期實(shí)踐摸索，該公司認(rèn)為V法鑄造工藝優(yōu)勢(shì)如下：與粘土砂工藝相比，V法鑄造工藝能夠?qū)㈣T件的成本降低20%-25%，也在實(shí)質(zhì)上減少了鑄件清理的勞動(dòng)支出，**降低澆注系統(tǒng)的金屬消耗量，是生產(chǎn)比較高質(zhì)量鋼鑄件花費(fèi)比較低的生產(chǎn)工藝；與自硬砂工藝相比，成本降低數(shù)倍；金屬液流動(dòng)性提高30%，可以實(shí)現(xiàn)更低的澆注溫度及鑄造薄壁鑄件；鑄件表面質(zhì)量非常出色；環(huán)境友好，加工余量**降低，尺寸更為精確，棱角清晰；可實(shí)現(xiàn)少無(wú)拔模斜度生產(chǎn)，模具磨損量極小。 </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(guò)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(lèi)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>V法鑄造型腔透氣性差，需要開(kāi)設(shè)通氣孔，通氣孔的截面積與澆注系統(tǒng)的**小截面積比例控制在（1～5）∶1；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無(wú)錫質(zhì)量V法鑄造工藝,V法鑄造" src="https://tyunfile.71360.com/UploadFile/Jyhuatian/637292187239755859/6756022.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(qiáng)：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(jìn)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(gè)別地方要補(bǔ)刷涂料；噴涂后要等待涂料烘干再放砂。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；無(wú)錫先進(jìn)V法鑄造流程</p><p style="text-indent:25px">我們有必要仔細(xì)分析一下我國(guó)目前短流程工藝的現(xiàn)狀以及在具體實(shí)施當(dāng)中客觀面對(duì)的一些問(wèn)題。無(wú)錫質(zhì)量V法鑄造工藝</p><p style="text-indent:25px">覆膜架帶動(dòng)EVA薄膜下降過(guò)程中與空氣產(chǎn)生的對(duì)流運(yùn)動(dòng)必然形成對(duì)整張薄膜的浮力，進(jìn)而造成薄膜的向上運(yùn)動(dòng)，并使薄膜自身產(chǎn)生一定的張力，即薄膜內(nèi)部區(qū)域?qū)ν獠繀^(qū)域的拉力作用（見(jiàn)圖1）。根據(jù)空氣動(dòng)力學(xué)原理，對(duì)流速度越快，也就是覆膜架下降的速度越快，這種浮力越大，整張薄膜向上浮動(dòng)的速度也就越大，同時(shí)，對(duì)薄膜的拉伸作用也越明顯。這種浮力不但會(huì)使EVA薄膜容易上浮并接觸到紅熱的電熱絲或者電熱管燙破，也有可能使熱態(tài)強(qiáng)度很低的薄膜在拉力作用下直接拉裂；采用數(shù)學(xué)模型去定量的給出覆膜框下行速度的參考值是很困難的，因?yàn)槿嵝詷O強(qiáng)的薄膜在覆膜框帶動(dòng)下運(yùn)動(dòng)的受力狀態(tài)極其復(fù)雜，直接的生產(chǎn)調(diào)試控制速度過(guò)快是比較現(xiàn)實(shí)的辦法。值得注意的是，覆膜架下行過(guò)程中加速度太大會(huì)造成EVA薄膜強(qiáng)烈顫動(dòng)，這往往源于氣動(dòng)控制裝置穩(wěn)定性太差、速度變化過(guò)分強(qiáng)烈。這種不必要的震蕩對(duì)于熱態(tài)下強(qiáng)度很低的薄膜也是非常危險(xiǎn)的。圖2為某生產(chǎn)現(xiàn)場(chǎng)因?yàn)楦材た蛘鹗幵斐蒃VA薄膜破裂的現(xiàn)象。無(wú)錫質(zhì)量V法鑄造工藝</p><p style="text-indent:25px">江陰華天科技開(kāi)發(fā)有限公司創(chuàng)立于2006-09-27，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(hù)提供質(zhì)量的產(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)備質(zhì)量品牌。在社會(huì)各界的鼎力支持下，經(jīng)過(guò)公司所有人員的努力，公司自2006-09-27成立以來(lái)，年?duì)I業(yè)額達(dá)到700-1000萬(wàn)元。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/467333.html</p></div></div></div></div></div><div id="fpj3fjt" class="page-right twoColRt"><div id="nnpbhjh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="v71hhbx" 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" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="vnndnj3" class="recomPic likePro"><a 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