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當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁(yè)?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://m.cdcfah.com/cp/second-jxjxysb_gkxtjzb/">工控系統(tǒng)及裝備</a>?<a href="http://m.cdcfah.com/cp/third-gkxtjzb_qtgkxtjzb/">其他工控系統(tǒng)及裝備</a>?貴州雙液螺桿閥認(rèn)真負(fù)責(zé) 客戶至上深圳市群勛科技供應(yīng)</p><div id="kdv8qn3" class="leftbox clearfix"><h1>貴州雙液螺桿閥認(rèn)真負(fù)責(zé) 客戶至上深圳市群勛科技供應(yīng)</h1><div id="leactpf" class="proBig"><div id="ui7bc8l" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/qunxun/637444829116384397/7147145.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jri8lgn" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/qunxun/637444829116384397/7147145.png" class="vcenter" 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class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="cvcdul3" class="box"><p><p> 微電子封裝工業(yè)中關(guān)鍵的一環(huán)在于流體點(diǎn)膠技術(shù),點(diǎn)膠速度,質(zhì)量和操作性能影響著封裝產(chǎn)業(yè)的發(fā)展.隨著微電子產(chǎn)品往尺寸更小,性能更強(qiáng),功耗更低,更環(huán)保的方向發(fā)展，貴州雙液螺桿閥認(rèn)真負(fù)責(zé),流體點(diǎn)膠技術(shù)也正在經(jīng)歷著由傳統(tǒng)的接觸式點(diǎn)膠向非接觸式點(diǎn)膠的技術(shù)變革，貴州雙液螺桿閥認(rèn)真負(fù)責(zé).作為非接觸點(diǎn)膠技術(shù)的一個(gè)重要分支——壓電式點(diǎn)膠技術(shù),由于具有比機(jī)械式和氣動(dòng)式更高的噴射頻率，貴州雙液螺桿閥認(rèn)真負(fù)責(zé),在點(diǎn)膠市場(chǎng)上更具有應(yīng)用價(jià)值和發(fā)展?jié)摿?但是目前國(guó)內(nèi)不論是企業(yè)還是科研院所對(duì)非接觸壓電式點(diǎn)膠閥的研究尚處于起步階段.本文的研究目的是開發(fā)一套由壓電陶瓷驅(qū)動(dòng),具有高噴射頻率性能且噴射膠體黏度范圍廣的點(diǎn)膠閥,并搭建平臺(tái)系統(tǒng)進(jìn)行液滴噴射實(shí)驗(yàn)研究.具體的研究工作主要包括以下幾部分:⑴分析并確定了影響非接觸壓電式點(diǎn)膠閥正常噴射的主要因素----放大機(jī)構(gòu)的設(shè)計(jì)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(jì)目標(biāo);初步分析驗(yàn)證了點(diǎn)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(shí)壓電陶瓷的比較大輸出位移為45μm, 螺桿點(diǎn)膠閥的供求氣壓沒(méi)法斷掉。貴州雙液螺桿閥認(rèn)真負(fù)責(zé)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州雙液螺桿閥認(rèn)真負(fù)責(zé),雙液螺桿閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/qunxun/637444829116384397/7147145.png"></div><p> 流體點(diǎn)膠技術(shù)是以一種可控的方式對(duì)膠液進(jìn)行精確分配的過(guò)程。微電子封裝中貼片、晶片打標(biāo)、底部填充等重要過(guò)程都需要流體點(diǎn)膠技術(shù)的支持,以實(shí)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(diǎn)膠質(zhì)量,點(diǎn)膠技術(shù)正逐漸不可避免的由接觸式點(diǎn)膠技術(shù)向非接觸式點(diǎn)膠技術(shù)轉(zhuǎn)變。本文對(duì)流體點(diǎn)膠技術(shù)進(jìn)行了綜述分析,并設(shè)計(jì)了一種基于壓電陶瓷驅(qū)動(dòng)的噴射式點(diǎn)膠閥。首先,分析影響流體噴射過(guò)中液滴形成的主要因素,分析了膠滴形成機(jī)理。根據(jù)質(zhì)量守恒定律和動(dòng)量守恒定律對(duì)粘性不可壓縮流體的層流運(yùn)動(dòng)建立了控制方程,利用VOF模型追蹤噴射過(guò)程中液體表面在空氣中變化并形成液滴的過(guò)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(dòng)、表面張力系數(shù)以及粘度等因素對(duì)流體噴射過(guò)程中液滴體積、拉伸長(zhǎng)度、斷裂時(shí)間以及噴射速度等參數(shù)的關(guān)系。使用雙液螺桿閥生產(chǎn)廠家精密螺桿閥外形輕巧，方便手握；操作簡(jiǎn)單，靈活性強(qiáng)，點(diǎn)膠精度高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州雙液螺桿閥認(rèn)真負(fù)責(zé),雙液螺桿閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/qunxun/637444829286999690/9971488.png"></div><p style="text-indent:25px">當(dāng)液體膠粘劑不能很好浸潤(rùn)被粘體表面時(shí)，空氣泡留在空隙中而形成弱區(qū)。點(diǎn)膠閥出現(xiàn)滴膠漏膠問(wèn)題大都是發(fā)生在點(diǎn)膠閥關(guān)閉以后，這樣的問(wèn)題大都是針頭口徑太小所引起的。自動(dòng)點(diǎn)膠閥的點(diǎn)膠針頭太小會(huì)影響液體的流動(dòng)造成背壓，會(huì)導(dǎo)致膠閥關(guān)閉不久后形成滴漏現(xiàn)象。高精度PCA-100精密噴霧閥，屬于液體與氣體混合型噴霧閥，在涂覆材料流量穩(wěn)定與霧化氣流流向控制方面高凱精密擁有多項(xiàng)技術(shù)，采用氣動(dòng)開閥、彈簧關(guān)閥，東莞螺桿點(diǎn)膠閥，減小了閥針的響應(yīng)時(shí)間，精密控制涂覆量，使物料按照需要被均勻噴涂在基板上。特殊的流體反應(yīng)密封結(jié)構(gòu)準(zhǔn)確的。</p><p style="text-indent:25px">兩相螺桿膨脹機(jī)在能量回收領(lǐng)域具有較好的應(yīng)用前景.本文構(gòu)建了螺桿膨脹機(jī)的轉(zhuǎn)子型線,建立了其兩相膨脹過(guò)程的數(shù)學(xué)模型,分析了工質(zhì)壓力,質(zhì)量,干度等參數(shù)隨主軸轉(zhuǎn)角的變化規(guī)律.結(jié)果表明:孔口流動(dòng)損失造成吸氣開始及結(jié)束階段均存在壓力降低現(xiàn)象,泄漏導(dǎo)致膨脹階段工質(zhì)壓力從低于理想值增加至高于理想值.吸氣結(jié)束時(shí)吸氣腔內(nèi)工質(zhì)質(zhì)量低于理想值,實(shí)際輸氣量由吸氣孔口流動(dòng)損失和泄漏量決定.膨脹過(guò)程工質(zhì)干度隨主軸轉(zhuǎn)角的增大而降低,排氣開始時(shí)工質(zhì)干度大于理想值.工質(zhì)入口干度的增加導(dǎo)致輸出功率逐漸降低,但單位質(zhì)量工質(zhì)的輸出功率逐漸增加.螺桿受控的旋轉(zhuǎn)將材料從進(jìn)口推向點(diǎn)膠出口。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州雙液螺桿閥認(rèn)真負(fù)責(zé),雙液螺桿閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/qunxun/637443969901897794/7416411.png"></div><p style="text-indent:25px">人工點(diǎn)膠作業(yè)效率低，合格率產(chǎn)品低，流體原料浪費(fèi)大等諸多問(wèn)題，提高了企業(yè)的產(chǎn)品質(zhì)量和產(chǎn)能，降低了生產(chǎn)成本和制造成本。PZT-JET5200壓電非接觸式熱熔膠噴射閥是一款非接觸式點(diǎn)膠閥，用于熱熔膠的非接觸式噴射點(diǎn)膠、采用壓電陶瓷方式、消除Z軸運(yùn)動(dòng)、實(shí)現(xiàn)更高的生產(chǎn)效率。熱熔膠噴射閥是一款高速、高質(zhì)和靈活性強(qiáng)的點(diǎn)膠方式和低廉的成本于一體，避免了針式點(diǎn)膠的常見問(wèn)題，避免撞彎針，不會(huì)引起芯片磨損，不受產(chǎn)品翹曲影響等。本產(chǎn)品應(yīng)用于各種膠水的高精度、高頻率點(diǎn)膠作業(yè)。精密點(diǎn)膠閥是博海的，也是經(jīng)常使用的膠閥類型之一，由于其特點(diǎn)較為符合到點(diǎn)膠的需求，在衣服拉鏈上使用是合適不過(guò)了，而拉鏈涂膠使用的一樣都是低濃。特殊的泵結(jié)構(gòu)，不受外部環(huán)境和材料變化，適用于從低粘度到高粘度的膠水.使用雙液螺桿閥生產(chǎn)廠家</p><p style="text-indent:25px">閥的模塊設(shè)計(jì)化允許閥體沒(méi)有從設(shè)備上卸下的情況下對(duì)螺桿連接器腔體進(jìn)行快速方便的裝卸。貴州雙液螺桿閥認(rèn)真負(fù)責(zé)</p><p>行業(yè)應(yīng)用<p>訊電子行業(yè)應(yīng)用包括：手機(jī)電池封裝，筆記本電池封裝，電腦揚(yáng)聲器/受話器，線圈點(diǎn)膠，PCB板邦定封膠，IC封膠，喇叭外圈點(diǎn)膠，PDA封膠，LCD封膠，IC封裝，IC粘接，光學(xué)器件加工，電路元件與基板粘接，印制線路板涂膠等等。<p>四、螺桿閥原理<p>螺桿閥原理：螺桿點(diǎn)膠閥是由轉(zhuǎn)子和定子相互嚙合，形成規(guī)則的幾何容量體，從而可用于點(diǎn)膠計(jì)量的一種新型閥體，主要工作部件是偏心螺桿和固定的襯套（橡膠材料）。由于該二部件的特殊幾何形狀，分別形成單獨(dú)的密封容腔，介質(zhì)由轉(zhuǎn)子和定子相互嚙合均勻推送流動(dòng)，內(nèi)部流速低，容積保持不變，壓力穩(wěn)定，因而不會(huì)產(chǎn)生渦流和攪動(dòng)。<p><br/>貴州雙液螺桿閥認(rèn)真負(fù)責(zé)</p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/3010269.html</p></div></div></div></div></div><div id="83ea2bs" class="page-right twoColRt"><div id="eipbita" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="irizq3g" class="recomPic likePro"><a href="http://m.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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