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href="http://www.cdcfah.com/cp/second-_dzyqj/">電子元器件</a>?<a href="http://www.cdcfah.com/cp/third-dzyqj_kcdzyqjcl/">庫存電子元器件、材料</a>?東莞大批量SMT貼片廠家誠信互利中山市浩明電子科技供應(yīng)</p><div id="nmjdubi" class="leftbox clearfix"><h1>東莞大批量SMT貼片廠家誠信互利中山市浩明電子科技供應(yīng)</h1><div id="7liaxzb" class="proBig"><div id="c3w22z9" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258649472657/2463037.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3i8skry" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258649472657/2463037.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ya8zbs3" 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>東莞大批量SMT貼片廠家,SMT貼片</p><p><span>***更新：</span>2020-12-24 09:15:29</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="tnk3zgs" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">中山市浩明電子科技有限公司</a></p><p><span>聯(lián)系人：</span>劉江波</p><p><span>郵箱: </span>smtdong@126.com</p><p><span>電話: </span>13590701587</p><p><span>傳真: </span>0760_23880308</p><p><span>網(wǎng)址: </span>http://www.haomiandianzi.shop.88360.com</p><p><span>手機(jī): </span>0760-23880308</p><p><span>地址: </span>東區(qū)白沙灣第二工業(yè)區(qū)C2幢4樓</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="nrj2um7" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="a3aubta" class="box"><p><p style="text-indent:25px">SMT貼片表面安裝元器件在功能上和插裝元器件沒有差別，其不同之處在于元器件的封裝。表面安裝的封裝在焊接時要經(jīng)受耐高溫度的元器件和基板必須具有匹配的熱膨脹系數(shù)。表面安裝的焊點既是機(jī)械連接點又是電氣連接點，東莞大批量SMT貼片廠家，合理的選擇對提高PCB設(shè)計密度、可生產(chǎn)性、可測試性和可靠性都產(chǎn)生決定性的影響。這些因素在產(chǎn)品設(shè)計中必須全盤考慮，東莞大批量SMT貼片廠家。選擇合適的封裝，東莞大批量SMT貼片廠家，其優(yōu)點主要是：1有效節(jié)省PCB面積；2提供更好的電學(xué)性能；3對元器件的內(nèi)部起保護(hù)作用，免受潮濕等環(huán)境影響；4提供良好的通信聯(lián)系；幫助散熱并為傳送和測試提供方便。所用設(shè)備為絲印機(jī)（絲網(wǎng)印刷機(jī)），位于SMT生產(chǎn)線的較前端。東莞大批量SMT貼片廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞大批量SMT貼片廠家,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258649472657/2463037.png"></div><p style="text-indent:25px">SMT是表面組裝技術(shù)（表面貼裝技術(shù)）（Surface Mounted Technology的縮寫），是電子組裝行業(yè)里較可以的一種技術(shù)和工藝。電子電路表面組裝技術(shù)（Surface Mount Technology，SMT），稱為表面貼裝或表面安裝技術(shù)。它是一種將無引腳或短引線表面組裝元器件（簡稱SMC/SMD，中文稱片狀元器件）安裝在印制電路板（Printed Circuit Board，PCB)的表面或其它基板的表面上，通過再流焊或浸焊等方法加以焊接組裝的電路裝連技術(shù)。SMT基本工藝構(gòu)成要素包括:絲?。ɑ螯c膠）,貼裝（固化）,回流焊接,清洗,檢測,返修。深圳自動SMT貼片廠家SMT貼片工藝中，首先對物料進(jìn)行檢驗，檢查物料的用量、規(guī)格、型號、品質(zhì)、性能是否符合要求。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞大批量SMT貼片廠家,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258702304688/5407070.png"></div><p style="text-indent:25px">為什么要用SMT貼片?1、電子產(chǎn)品追求小型化，以前運用的穿孔插件元件已無法減少，電子產(chǎn)品功用更完好，所采用的集成電路(IC)已無穿孔元件，特別是大范圍、高集成IC，不得不采用外表貼片元件產(chǎn)品批量化，消費自動化，廠方要以低本錢高產(chǎn)量，出產(chǎn)優(yōu)良產(chǎn)品以迎合顧客需求及增強市場競爭力。電子元件的開展，集成電路(IC)的開發(fā)，半導(dǎo)體資料的多元應(yīng)用，電子科技反動勢在必行，追逐國際潮流。能貼裝元器件的類型。貼裝元器件類型普遍的貼片機(jī)比*能貼裝SMC或少量SMD類型的貼片機(jī)適應(yīng)性好。</p><p style="text-indent:25px">SMT貼片壓力過小，元器件焊端或引腳浮在焊膏表面，焊膏粘不住元器件，在傳遞和再流焊時容易產(chǎn)生位置移動，另外由于Z軸高度過高，貼片時元件從高處扔下，會造成貼片位置偏移。 SMT貼片壓力過大，焊膏擠出量過多，容易造成焊膏粘連，再流焊時容易產(chǎn)生橋接，同時也會由于滑動造成貼片位置偏移，嚴(yán)重時還會損壞元器件。SMT貼片加工過程中，除了穿戴防靜電服、靜電手環(huán)等必要的人體防靜電外，涉及操作靜電敏感元器件的桌臺面必須采用防靜電臺墊，并做好有效接地。SMT貼片檢測：其作用是對組裝好的PCB板進(jìn)行焊接質(zhì)量和裝配質(zhì)量的檢測。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞大批量SMT貼片廠家,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258869951172/8176008.png"></div><p style="text-indent:25px">貼片工藝：雙面組裝A：來料檢測 => PCB的A面絲印焊膏（點貼片膠）=> 貼片 PCB的B面絲印焊膏（點貼片膠）=> 貼片 =>烘干 => 回流焊接（還不錯的*對B面 => 清洗 => 檢測 => 返修）。B：來料檢測 => PCB的A面絲印焊膏（點貼片膠）=> 貼片 => 烘干（固化）=>A面回流焊接 => 清洗 => 翻板 = PCB的B面點貼片膠 => 貼片 => 固化 =>B面波峰焊 => 清洗 => 檢測 => 返修）此工藝適用于在PCB的A面回流焊，B面波峰焊。在PCB的B面組裝的SMD中，只有SOT或SOIC（28）引腳以下時，宜采用此工藝。SMT貼片加工設(shè)備工藝流程：模板：(鋼網(wǎng)) 首先根據(jù)所設(shè)計的PCB確定是否加工模板。深圳自動SMT貼片廠家</p><p style="text-indent:25px">smt貼片加工成就了一個行業(yè)的繁榮。東莞大批量SMT貼片廠家</p><p style="text-indent:25px">SMT貼片膠按使用方式分類：a）刮膠型：通過鋼網(wǎng)印刷涂刮方式進(jìn)行施膠。這種方式應(yīng)用較廣，可以直接在錫膏印刷機(jī)上使用。鋼網(wǎng)開孔要根據(jù)零件的類型，基材的性能來決定，其厚度和孔的大小及形狀。其優(yōu)點是速度快、效率高、成本低。b）點膠型：通過點膠設(shè)備在印刷線路板上施膠的。需要專門的點膠設(shè)備，成本較高。點膠設(shè)備是利用壓縮空氣，將紅膠透過**點膠頭點到基板上，膠點的大小、多少、由時間、壓力管直徑等參數(shù)來控制，點膠機(jī)具有靈活的功能。對于不同的零件，我們可以使用不同的點膠頭，設(shè)定參數(shù)來改變，也可以改變膠點的形狀和數(shù)量，以求達(dá)到效果，優(yōu)點是方便、靈活、穩(wěn)定。缺點是易有拉絲和氣泡等。我們可以對作業(yè)參數(shù)、速度、時間、氣壓、溫度調(diào)整，來盡量減少這些缺點。東莞大批量SMT貼片廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2543216.html</p></div></div></div></div></div><div id="t3yq3x9" class="page-right twoColRt"><div id="3u8phel" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="k2kcur7" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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