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id="pxnd3dr" class="twoCol"><div id="jrhnjxn" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dzyqj/">電子元器件</a>?<a href="http://www.cdcfah.com/cp/second-dzyqj_dzcpzzsbqy/">電子產(chǎn)品制造設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-dzcpzzsbqy_djsbya/">點膠設(shè)備</a>?銷售點膠閥企業(yè) 深圳市群勛科技供應(yīng)</p><div id="3f3b5hv" class="leftbox clearfix"><h1>銷售點膠閥企業(yè) 深圳市群勛科技供應(yīng)</h1><div id="trnvrvj" class="proBig"><div id="v3lhzfl" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637219622714130859/2850630.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hn5lr5b" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637219622714130859/2850630.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fl5rzfd" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>銷售點膠閥企業(yè)</p><p><span>***更新：</span>2020-05-29 00:29:35</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="rhhnvjh" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市群勛科技有限公司</a></p><p><span>聯(lián)系人：</span>張華</p><p><span>郵箱: </span>zh@qxunad.com</p><p><span>電話: </span>18603057926</p><p><span>傳真: </span>0755_23156458</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0755-33075040</p><p><span>地址: </span>光明新區(qū)公明街道民生路70號銘源商務(wù)大廈808室</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="ndljh5v" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="7hntz3z" class="box"><p><p> 噴射式精密點膠閥的設(shè)計及分析 </p> <p> 流體點膠技術(shù)是以一種可控的方式對膠液進(jìn)行精確分配的過程。微電子封裝中貼片、晶片打標(biāo)、底部填充等重要過程都需要流體點膠技術(shù)的支持，以實現(xiàn)精確穩(wěn)定的電子封裝。為了適應(yīng)微電子技術(shù) 的發(fā)展需求，銷售點膠閥企業(yè)、提高生產(chǎn)效率及點膠質(zhì)量，點膠技術(shù)正逐漸不可避免的由接觸式點膠技術(shù)向非接觸式點膠技術(shù)轉(zhuǎn)變，銷售點膠閥企業(yè)。本文對流體點膠技術(shù)進(jìn)行了綜述分析，并設(shè)計了一種基于壓電陶瓷驅(qū)動的噴射式點膠閥。首先，分析影響流體噴射過中液滴形成的主要因素，銷售點膠閥企業(yè)，分析了膠滴形成機(jī)理。根據(jù)質(zhì)量守恒定律和動量守恒定律對粘性不可壓縮流體的層流運(yùn)動建立了控制方程，利用 VOF模型追蹤噴射過程中液體表面在空氣中變化并形成液滴的過程，并根據(jù)連續(xù)表面力法(CSF)描述氣相與液相間的表面張力作用。分別分析了供料壓力、撞針運(yùn)動、表面張力系數(shù)以及粘度等因素對流體噴射過程中液滴體積、拉伸長度、斷裂時間以及噴射速度等參數(shù)的關(guān)系。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="銷售點膠閥企業(yè)" src="http://tyunfile.71360.com/UploadFile/qunxun/637219622714130859/2850630.png"></div><p> ⑴分析并確定了影響非接觸壓電式點膠閥正常噴射的主要因素----放大機(jī)構(gòu)的設(shè)計方案,并提出了放大機(jī)構(gòu)比較大輸出位移為320μm的設(shè)計目標(biāo)；初步分析驗證了點膠閥閥針發(fā)生撓曲的可行性及必要性；在了解壓電陶瓷基礎(chǔ)理論的基礎(chǔ)上,運(yùn)用有限元軟件ANSYS仿真分析所選壓電陶瓷的輸出位移與輸入電壓關(guān)系曲線,獲得200V時壓電陶瓷的比較大輸出位移為45μm,與實際測試結(jié)果基本相同,并且能滿足點膠閥對壓電陶瓷部件的位移要求。 </p> <p> ⑵通過ANSYS仿真,分析了放大機(jī)構(gòu)的輸出位移與拉緊螺栓預(yù)緊力F0、螺栓直徑D、三角塊長度L0、壓電陶瓷間距t等結(jié)構(gòu)參數(shù)之間的關(guān)系,并以優(yōu)化后的結(jié)構(gòu)參數(shù)D=2mm,Lo=2mm,t=10mm等尺寸設(shè)計樣機(jī),實驗結(jié)果表明,樣機(jī)放大機(jī)構(gòu)的比較大輸出位移為320μm,滿足設(shè)計方案要求；放大機(jī)構(gòu)的輸出位移隨著施加電壓幅值的增大而增大,與占空比無關(guān)；當(dāng)驅(qū)動頻率為0～65Hz時,放大機(jī)構(gòu)的輸出位移基本保持在320μm左右,達(dá)到65Hz,將隨著頻率的增大而迅速減小。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="銷售點膠閥企業(yè)" src="http://tyunfile.71360.com/UploadFile/qunxun/637219622714726562/7884092.jpg"></div><p> COB用高精度點膠閥 </p> <p> 公開了COB用高精度點膠閥，它包括閥座（4）、泵體（5）和固接在閥座外側(cè)面上的連接部，泵體內(nèi) 設(shè)有與閥座連通的滑道（6），滑道內(nèi)適配有與滑道滑動配合的注射桿（1），閥座底部連通有排液接頭（7），閥座內(nèi)設(shè)有能控制閥座與排液接頭通斷的閥芯組件，連接部包括與與閥座相連通的進(jìn)液通道（8），進(jìn)液通道遠(yuǎn)離閥座的一端設(shè)有排氣孔，排氣孔上適配有排氣螺釘（9）。本發(fā)明的有益效果是在進(jìn)液通道上設(shè)有排氣孔及排氣螺釘有利于點膠前的排氣，保證點膠閥的穩(wěn)定工作；***密封圈、第二密封圈及其兩者之間的滑道配合實現(xiàn)了排出閥體中殘余液體及密封的效果；閥芯組件的設(shè)計及其閥芯上的轉(zhuǎn)柄使得控制閥座和排液接頭的通斷方便快速。一種用于模壓煙花點膠的點膠閥 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="銷售點膠閥企業(yè)" src="http://tyunfile.71360.com/UploadFile/qunxun/637219622714482422/7370477.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/70445.html</p></div></div></div></div></div><div id="dtbpvbz" class="page-right twoColRt"><div id="l5rxvtz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jzhfdpn" 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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