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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>?東莞點膠閥鑄造輝煌深圳市群勛科技供應(yīng)</p><div id="ycjgn27" class="leftbox clearfix"><h1>東莞點膠閥鑄造輝煌深圳市群勛科技供應(yīng)</h1><div id="nbtvn2b" class="proBig"><div id="ga27qdt" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637219622716269531/3301014.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="fz8hykr" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637219622716269531/3301014.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jifxzli" 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>東莞點膠閥鑄造輝煌,點膠閥</p><p><span>***更新：</span>2020-06-14 14:20:45</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="xheldub" 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: </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="rgi2uuw" class="page-proshow02"><p class="title">詳細說明</p><div id="utli3su" class="box"><p><p> 用于微電子封裝的噴射點膠閥的研發(fā) </p> <p> 微電子封裝行業(yè)中的噴射點膠是近些年來興起的一門技術(shù)，它是一種非接觸式點膠技術(shù)。其技術(shù)**是通過在噴嘴附近產(chǎn)生較大的壓力波使得噴嘴出口附近的膠液獲得較大速度，從而脫離噴嘴，東莞點膠閥鑄造輝煌，形成液滴，直接飛向基板。噴射點膠與接觸點膠的比較大區(qū)別是：當(dāng)膠液從噴嘴噴出后，在接觸基板之前膠液已與噴嘴分離。噴射到基板的膠液可以根據(jù)需要形成點、線和所要圖形，而且在點膠位置的移動過程中，點膠頭沒有Z軸方向的運動，這樣既節(jié)約了很多時間，又避免了噴頭與元器件碰撞發(fā)生刮傷，**提高了工作效率和工作質(zhì)量。 </p> <p> 本文首先對微電子封裝的發(fā)展和點膠技術(shù)在微電子封裝中的應(yīng)用做了概述，針對微電子封裝中傳統(tǒng)點膠技術(shù)遇到的問題和噴射式點膠技術(shù)的特點做了詳細解釋，并簡單介紹了國內(nèi)外研究現(xiàn)狀。 </p> <p> 本文針對點膠過程中的物理過程進行了建模和理論分析，對影響噴射效果的參數(shù)做了研究。而后又運用計算流體力學(xué)的方法，東莞點膠閥鑄造輝煌，對點膠過程的關(guān)鍵過程進行了數(shù)值仿真。結(jié)合理論分析和數(shù)值仿真結(jié)果，本文設(shè)計出了三種不同類型的噴射點膠閥，分別是氣動式，東莞點膠閥鑄造輝煌、音圈電機式、壓電式。***又針對三種噴射點膠閥的實驗需要設(shè)計并制作了一點膠實驗平臺。 </p> <p> <br /> 點膠機點膠閥的應(yīng)用也會更加***和多樣化.東莞點膠閥鑄造輝煌</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞點膠閥鑄造輝煌,點膠閥" src="http://tyunfile.71360.com/UploadFile/qunxun/637219622716269531/3301014.png"></div><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、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。本文對流體點膠技術(shù)進行了綜述分析，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，分析了膠滴形成機理。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 /> 中國澳門點膠閥私人定做可以滿足高頻響非接觸式與接觸式點膠要求.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞點膠閥鑄造輝煌,點膠閥" src="http://tyunfile.71360.com/UploadFile/qunxun/637219622714707031/4173338.jpg"></div><p style="text-indent:25px">近年來,點膠系統(tǒng)的使用日益***,各類精密液體分配系統(tǒng)對該技術(shù)需求旺盛。該文提出了一種由疊層壓電陶瓷驅(qū)動的非接觸式點膠閥,該閥由兩個相同的疊層壓電陶瓷驅(qū)動,通過位移放大機構(gòu), 改變位移的輸出方向,并將力傳遞給閥桿,**終實現(xiàn)噴射。利用FLUENT軟件模擬了點膠過程,分析了流體噴射機理,通過實驗研究了閥桿抬起時間、氣壓、流體粘度等噴射參數(shù)對于點膠量的影響,實驗結(jié)果與仿真結(jié)果吻合。實驗使用直徑為0.35mm的噴嘴、噴射液體為甘油時,可以獲得平均直徑為0.53mm 的液滴,其一致性誤差小于6%。</p><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----放大機構(gòu)的設(shè)計方案,并提出了放大機構(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,實驗結(jié)果表明,樣機放大機構(gòu)的比較大輸出位移為320μm,滿足設(shè)計方案要求；放大機構(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,放大機構(gòu)的輸出位移基本保持在320μm左右,達到65Hz,將隨著頻率的增大而迅速減小。 </p> <p> <br /> 自動點膠機點膠閥使用的膠水顧名思義就是兩種膠水！膠水配比是關(guān)鍵！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞點膠閥鑄造輝煌,點膠閥" src="http://tyunfile.71360.com/UploadFile/qunxun/637219622714482422/7370477.jpg"></div><p style="text-indent:25px">3.2.2 數(shù)據(jù)格式的轉(zhuǎn)換在這里我們編寫一段代碼來將前面讀取的x和y坐標(biāo)轉(zhuǎn)換camalot的mark坐標(biāo)格式： Open "d:camalottest.txt" For Output As #1 str = " " & 1 & "; REFPT; " & x & "; " & y& ";" Print #1, str ***的執(zhí)行結(jié)果就是在d盤的camalot目錄下生成了一個test.txt的文本文件，該文本文件包含這樣的內(nèi)容：“1; REFPT ; 20.86; 30.86;”，這樣也就將x和y坐標(biāo)轉(zhuǎn)換camalot的mark坐標(biāo)格式。 3.3 點膠機程序的優(yōu)化我們仔細觀察點膠機的工作過程，就會發(fā)現(xiàn)膠機的點膠速度還是很快的，它的大部分時間都花在點膠頭的移動上了。我們要考慮的主要因素就成了如何盡量減少點膠頭的移動距離問題，即尋求**短路徑的問題。假設(shè)總共有PCB板上有n個需要點膠位置，從一個特定的起始點出發(fā)，如何才能尋找一條比較好的路徑，使得其能遍歷所有的點而運動的總距離**短。數(shù)學(xué)描述如下：假設(shè){1，2，3，…，i…，n}為一系列要遍歷的點，其坐標(biāo)位置分別為{（X1，Y1），（X2，Y2），…，（Xi，Yi），…，（Xn，Yn）}，我們的目標(biāo)是尋求一個序列{（i1，i2，…，in）}使得： 1）每個點在序列中*出現(xiàn)一次； 2）滿足ikik 1（1≤k≤n）兩點間距離**小。點膠機點膠閥被LED行業(yè)的迅速發(fā)展帶動起來.東莞點膠閥鑄造輝煌</p><p style="text-indent:25px">膠水是用來灌封？黏貼？絕緣？防潮？點滴？東莞點膠閥鑄造輝煌</p><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液通道（8），進液通道遠離閥座的一端設(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 /> 東莞點膠閥鑄造輝煌</p><p style="text-indent:25px">深圳市群勛科技有限公司注冊資金1000-2000萬元，是一家擁有5~10人***員工的企業(yè)。公司業(yè)務(wù)分為[ "視覺噴點膠機", "點膠閥", "壓力泵", "壓痕檢測機" ]等，目前不斷進行創(chuàng)新和服務(wù)改進，為客戶提供質(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，秉持誠信為本的理念，打造機械及行業(yè)設(shè)備質(zhì)量品牌。公司憑借深厚技術(shù)支持，年營業(yè)額度達到100-200萬元，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/257357.html</p></div></div></div></div></div><div id="oliakrt" class="page-right twoColRt"><div id="zjqnkry" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lvskhzh" class="recomPic 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