smt貼片質(zhì)量要求誠信經(jīng)營中山市浩明電子科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="SMT貼片的加工技術(shù)目前已普遍應(yīng)在在電子行業(yè)中，是實現(xiàn)電子產(chǎn)品小型化、高集成不可缺少重要貼裝工藝。SMT貼片加工根據(jù)產(chǎn)品類型不同，貼片價格也是不相同的，在工藝流程上也是有所區(qū)別，下面SMT廠小編就為大家介紹SMT貼片加工常見基本工藝流程：單"><meta name="keywords" content="smt貼片質(zhì)量要求,SMT貼片"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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clearfix"><h1>smt貼片質(zhì)量要求誠信經(jīng)營中山市浩明電子科技供應(yīng)</h1><div id="7fbdnzl" class="proBig"><div id="3nrjdpw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258582382813/5781319.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="wxp3oph" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258582382813/5781319.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nceliug" 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>smt貼片質(zhì)量要求,SMT貼片</p><p><span>***更新：</span>2021-01-18 10:14:11</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="ic7ylry" 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="akmttv3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3kmtvnu" class="box"><p><p style="text-indent:25px">SMT貼片的加工技術(shù)目前已普遍應(yīng)在在電子行業(yè)中，是實現(xiàn)電子產(chǎn)品小型化、高集成不可缺少重要貼裝工藝。SMT貼片加工根據(jù)產(chǎn)品類型不同，貼片價格也是不相同的，在工藝流程上也是有所區(qū)別，下面SMT廠小編就為大家介紹SMT貼片加工常見基本工藝流程：單面SMT貼片：即在單面PCB板上進(jìn)行SMT組裝，單面PCB板的零件是集中在一面，另一面則是導(dǎo)線，smt貼片質(zhì)量要求，smt貼片質(zhì)量要求，是比較基本的PCB板，單面板的貼片加工工藝是比較簡單的，主要有以下兩種組裝工藝：1、單面組裝工藝流程：來料檢測—絲印焊膏—貼片—烘干—回流焊接—清洗—檢測—返修。2、單面混裝工藝流程：來料檢測—PCB的A面絲印焊膏(點貼片膠)—貼片—烘干—回流焊接—清洗—插件—波峰焊—清洗—檢測—返修，smt貼片質(zhì)量要求。SMT貼片加工中焊膏中焊劑含量太高，在回流焊過程中過多的焊劑的流動導(dǎo)致了元器件的移位。smt貼片質(zhì)量要求</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="smt貼片質(zhì)量要求,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258582382813/5781319.png"></div><p style="text-indent:25px">IPQC需利用電橋（LCR表）、萬用表和貼片位置圖來檢查首件，用電橋測量電容和0402電阻的容值、阻值是否與BOM一致，再檢查元器件的絲印、方向是否與stm貼片位置圖一致。在測試首件的過程中，我們用貼片位置圖（必須是執(zhí)行較新ECN的）上的參數(shù)來核對PCB上元器件的參數(shù)。所有的電容需用LCR表測試，在測的時候盡量按同一個方向測試，以免有漏測現(xiàn)象。如是0402的電阻也需用LCR表測試，大于0402的電阻及其它物料需核對其絲印、方向是否正確，物料的方向一般以PCB板方向為標(biāo)準(zhǔn)（如果貼片位置圖的方向與PCB的方向不一致時，需找相關(guān)人員確認(rèn)），確保無多料、少料、錯件、錯位、反向、移位等不良現(xiàn)象。smt貼片質(zhì)量要求SMT貼片機(jī)的精度和質(zhì)量息息相關(guān)，如果長時間不做清理會造成堵塞氣路，造成氣路不暢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="smt貼片質(zhì)量要求,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258616425782/2441777.png"></div><p style="text-indent:25px">SMT貼片進(jìn)行涂敷的主要目的是將膠水或焊膏精確地涂敷于PCB上，使貼片工序貼裝的元器件能夠粘在PCB焊盤上。按照涂數(shù)方式的不同表面涂數(shù)工藝可分為以下幾種。根據(jù)SMT貼片加工焊膏與貼片膠組成成分的不同，焊膏涂敷通常采用模板絲網(wǎng)印刷工藝、噴涂工藝、點涂工藝，貼片膠涂敷通常采用注射點涂工藝、針式轉(zhuǎn)移工藝、絲網(wǎng)模板印刷工藝，二者的優(yōu)先選擇順序也分別是模板絲網(wǎng)印工藝和注射點涂工藝。SMT貼片涂敷工藝及設(shè)備：焊膏或貼片膠涂敷時，SMT加工廠大批量生產(chǎn)一般使用大型自動化設(shè)備，諸如，印刷機(jī)、點膠機(jī)、點膏機(jī)等。小批量或手工涂敷時，通常采用臺式點膠或點膏機(jī)、臺式印劇機(jī)甚至手工涂敷。</p><p style="text-indent:25px">隨著SMT貼片加工的飛速發(fā)展,不但元器件的尺寸越來越小、SMT貼片元件密度越來越高,而且還不斷推出新型封裝形式,為了適應(yīng)高密度、高難度的電路板組裝技術(shù)的需要,貼裝機(jī)正在向高速度、高精度、多功能和模塊化、智能化方向發(fā)展。貼片加工設(shè)備的高速度：1.“飛行對中”技術(shù)。飛行對中技術(shù)把CCD圖像傳感器直接安裝在貼裝頭上,一起運動,實現(xiàn)了在拾起器件后,在運動到印制電路板貼裝位置的過程中對元件進(jìn)行光學(xué)對中。2.高速SMT貼片機(jī)模塊化。3.雙路輸送結(jié)構(gòu)。在保留傳統(tǒng)單路貼裝機(jī)的性能下,將PCB的輸送、定位、檢測等設(shè)計成雙路結(jié)構(gòu),這種雙路結(jié)構(gòu)的貼裝機(jī),其工作方式可分為同步方式和異步方式。當(dāng)同步方式運轉(zhuǎn)時,完成兩塊大小相同的印制板的器件貼裝;異步方式運轉(zhuǎn)時,當(dāng)一塊印制板在進(jìn)行器件貼裝時,另一塊印制板完成傳送、基準(zhǔn)對準(zhǔn)、壞板檢查等步驟,從而提高SMT加工廠的生產(chǎn)效率。一般采用SMT之后，電子產(chǎn)品體積縮小40%~60%，重量減輕60%~80%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="smt貼片質(zhì)量要求,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258649472657/2463037.png"></div><p style="text-indent:25px">SMT貼片加工固化：它的作用是將貼片膠融化，從而使表面組裝元器件與PCB板牢固粘接在一起。所用設(shè)備為固化爐，位于SMT生產(chǎn)線中貼片機(jī)的后面。回流焊接：其作用是將焊膏融化，使表面組裝元器件與PCB板牢固粘接在一起。所用設(shè)備為回流焊爐，位于SMT生產(chǎn)線中貼片機(jī)的后面。清洗：其作用是將組裝好的PCB板上面的對人體有害的焊接殘留物如助焊劑等除去。所用設(shè)備為清洗機(jī)，位置可以不固定，可以在線，也可不在線。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。所用設(shè)備有放大鏡、顯微鏡、在線測試儀（ICT）、自動光學(xué)檢測（AOI）、X-RAY檢測系統(tǒng)、功能測試儀等。位置根據(jù)檢測的需要，可以配置在生產(chǎn)線合適的地方。返修：其作用是對檢測出現(xiàn)故障的PCB板進(jìn)行返工。所用工具為烙鐵、返修工作站等。配置在生產(chǎn)線中任意位置。SMT貼片加工中出現(xiàn)元器件移位的原因是什么？中山SMT貼片設(shè)備</p><p style="text-indent:25px">SMT貼片指的是在PCB基礎(chǔ)上進(jìn)行加工的系列工藝流程簡稱。smt貼片質(zhì)量要求</p><p style="text-indent:25px">SMT貼片加工焊接后的清洗，對高要求的精密儀表等特殊要求的產(chǎn)品需要做三防處理，三防處理前要求有很高的清潔度，否則在潮熱或高溫等惡劣環(huán)境條件下會造成電性能下降或失效等嚴(yán)重后果。由于焊后殘留物的速擋，造成在線測或功能測時測試探針接觸不良，容易出現(xiàn)誤測對于高要求的產(chǎn)品，由于焊后殘留物的遮擋，使一些熱損傷、層裂等缺陷不能暴露出來，造成漏檢而影響可靠性。同時，殘渣多也影響基板的外觀和板卡的商品性。焊后殘留物會影響高密度、多I/O連接點陣列芯片、倒裝芯片的連接可靠性。smt貼片質(zhì)量要求</p><p style="text-indent:25px">中山市浩明電子科技有限公司辦公設(shè)施齊全，辦公環(huán)境優(yōu)越，為員工打造良好的辦公環(huán)境。致力于創(chuàng)造***的產(chǎn)品與服務(wù)，以誠信、敬業(yè)、進(jìn)取為宗旨，以建浩明產(chǎn)品為目標(biāo)，努力打造成為同行業(yè)中具有影響力的企業(yè)。公司不**提供專業(yè)的SMT (貼片)+COB(邦定) 來料代加工，擁有8條高精細(xì)全自動生產(chǎn)線，可貼裝 0402 、 0201 、SOT 、SOP 、BGA 、FPC插座、USB接口、QFP 、QFN 、PLCC 等各類高精細(xì) 異形元件，有3臺COB邦機(jī)，全自動固晶機(jī)、封膠機(jī)，能高的效率 ***完成邦定需求。，同時還建立了完善的售后服務(wù)體系，為客戶提供良好的產(chǎn)品和服務(wù)。誠實、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準(zhǔn)則。公司致力于打造***的smt貼片，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2901925.html</p></div></div></div></div></div><div id="hxe2btg" class="page-right twoColRt"><div id="scjyk8u" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lankc8d" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" 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