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href="http://www.cdcfah.com/cp/third-dzyqj_kcdzyqjcl/">庫存電子元器件、材料</a>?深圳一站式SMT貼片技術服務為先中山市浩明電子科技供應</p><div id="fszawxj" class="leftbox clearfix"><h1>深圳一站式SMT貼片技術服務為先中山市浩明電子科技供應</h1><div id="obipvqw" class="proBig"><div id="3gm37lh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258831015625/5527413.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="o8pw8co" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258831015625/5527413.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="q9riuvh" 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)品關鍵詞：</span>深圳一站式SMT貼片技術,SMT貼片</p><p><span>***更新：</span>2020-12-22 00:21:28</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="iypgm28" 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: </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="y4t2ed3" class="page-proshow02"><p class="title">詳細說明</p><div id="uk8okgs" class="box"><p><p style="text-indent:25px">SMT貼片流程：印刷：其作用是將焊膏或貼片膠漏印到PCB的焊盤上，深圳一站式SMT貼片技術，為元器件的焊接做準備。所用設備為印刷機（錫膏印刷機），位于SMT生產(chǎn)線的前端。點膠：因現(xiàn)在所用的電路板大多是雙面貼片，為防止二次回爐時投入面的元件因錫膏再次熔化而脫落，深圳一站式SMT貼片技術，故在投入面加裝點膠機，它是將膠水滴到PCB的固定位置上，其主要作用是將元器件固定到PCB板上。所用設備為點膠機，位于SMT生產(chǎn)線的前端或檢測設備的后面。有時由于客戶要求產(chǎn)出面也需要點膠，深圳一站式SMT貼片技術，而現(xiàn)在很多小工廠都不用點膠機，若投入面元件較大時用人工點膠。SMT貼片加工焊點缺陷率低，高頻特性好，減少了電磁和射頻干擾。深圳一站式SMT貼片技術</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳一站式SMT貼片技術,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258831015625/5527413.png"></div><p style="text-indent:25px">SMT貼片加工價錢計算目前幾乎處于通明階段，幾錢一個點的算法很復雜。不過首先，需求明白“點”的概念，不同的公司采用的算法不同，但針對一塊PCB板來講，開始的SMT貼片加工費用總價是一樣的。SMT貼片加工的次要目的是將貼片元器件貼裝到PCB的焊盤上，有的公司將一個焊盤計算為一個點，但也有將兩個焊點（例如一個0201的貼片電阻）計作一個點的情況。以焊盤計算為一個點為例。只需求計算PCB板上一切的焊盤數(shù)即可，但是遇到一些特殊的元器件，比如電感、大的電容、IC等。江門小批量SMT貼片報價SMT貼片加工的主要目的是將表面組裝元器件準確安裝到PCB的固定位置上。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳一站式SMT貼片技術,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258632216797/5876714.png"></div><p style="text-indent:25px">SMT貼片膠的工藝特性：連接強度：SMT貼片膠必須具備較強的連接強度，在被硬化后，即使在焊料熔化的溫度也不剝離。點涂性：目前對印制板的分配方式多采用點涂方式，因此要求膠要具有以下性能：①適應各種貼裝工藝；②易于設定對每種元器件的供給量；③簡單適應更換元器件品種；④點涂量穩(wěn)定。適應高速機：現(xiàn)在使用的貼片膠必須滿足點涂和高速貼片機的高速化，具體講，就是高速點涂無拉絲，再者就是高速貼裝時，印制板在傳送過程中，貼片膠的粘性要保證元器件不移動。拉絲、塌落：貼片膠一旦沾在焊盤上，元器件就無法實現(xiàn)與印制板的電氣性連接，所以，貼片膠必須是在涂布時無拉絲、涂布后無塌落，以免污染焊盤。</p><p style="text-indent:25px">SMT貼片的特性：組裝密度高、電子產(chǎn)品體積小、重量輕，貼片元件的體積和重量只要傳統(tǒng)插裝元件的1/10左右，普通采用SMT貼片之后，電子產(chǎn)品體積縮40%~60%，重量減輕60%~80%。牢靠性高、抗振才能強。焊點缺陷率低。高頻特性好。減少了電磁和射頻干擾。易于完成自動化，進步消費效率。降低本錢達30%~50%。儉省資料、能源、設備、人力、時間等。影響貼片機貼裝元器件類型的主要因素是貼裝精度、貼裝工具、定心機構與元器件的相容性,以及貼片機能容納的供料器的數(shù)目和種類。有些貼片機只能容納有限的供料器,而有些貼片機能容納大多數(shù)或全部類型的供料器,并且能容納的供料器的數(shù) 目也比較多,顯然,后者比前者的適應性好。在一般選擇了SMT貼片加工之后，相應的功能情況下電子產(chǎn)品的整體體積會減少40%~60%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳一站式SMT貼片技術,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258649472657/2463037.png"></div><p style="text-indent:25px">SMT貼片校對檢查并備份貼片程序：①按PCBA工藝文件中的元器件明細表，校對程序中每一步的元件名稱、位號、型號規(guī)格是否正確，對不正確處按工藝文件進行修正。②檢查貼裝機每個供料器站上的元器件與拾片程序表是否一致。③在貼裝機上用主攝像頭檢查每一步元器件的X、Y坐標是否與PCB上的元件中心一致，對照工藝文件中的元件位置示意圖檢查轉角Θ是否正確，對不正確處進行修正。（如果不執(zhí)行本步驟，可在SMT首件貼裝后按照實際貼裝偏差進行修正）④將完全正確的產(chǎn)品程序復制到備份U盤中保存，校對檢查完全正確后才能進行生產(chǎn)。貼片元件的體積和重量只有傳統(tǒng)插裝元件的1/10左右。浙江線路板smt貼片加工</p><p style="text-indent:25px">SMT貼片加工中施加焊膏的工藝目的是把適量的焊膏均勻地施加在PCB的焊盤上。深圳一站式SMT貼片技術</p><p style="text-indent:25px">SMT是電子元器件的基礎元件之一，稱為表面組裝技術（或是表面貼裝技術），分為無引腳或短引線，是通過回流焊或浸焊加以焊接組裝的電路裝連技術，也是目前電子組裝行業(yè)里非常流行的一種技術和工藝。特點：我們的基板，可用于電源供應，訊號傳輸、散熱、提供結構的作用。特性：能夠承受固化和焊接的溫度和時間。平整度符合制造工藝的要求。適合返修工作。適合基板的制造工藝。低介質數(shù)和高電阻。有利于提高產(chǎn)品的可靠性。此外，SMT工序簡單，焊接缺陷較少，適合于自動化生產(chǎn)，生產(chǎn)效率也高，勞動強度低，生產(chǎn)成本降低等優(yōu)點。因此，近年來，SMT得了快速發(fā)展，已成為世界電子整機組裝技術的主流。深圳一站式SMT貼片技術</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2501941.html</p></div></div></div></div></div><div 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