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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="nmtizbn" class="twoCol"><div id="837v8bi" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a 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/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>?江蘇smt電子貼片生產(chǎn) 歡迎咨詢中山市浩明電子科技供應(yīng)</p><div id="kjg87v2" class="leftbox clearfix"><h1>江蘇smt電子貼片生產(chǎn) 歡迎咨詢中山市浩明電子科技供應(yīng)</h1><div id="b3yiart" class="proBig"><div id="84ifwyf" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258719462891/5378899.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="a7v2ovx" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258719462891/5378899.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hbnx8nz" 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>江蘇smt電子貼片生產(chǎn),SMT貼片</p><p><span>***更新：</span>2021-01-24 12:17:11</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="mqsk7xj" 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(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="fnkctfc" class="page-proshow02"><p class="title">詳細說明</p><div id="d3ix77i" class="box"><p><p style="text-indent:25px">SMT貼片加工技術(shù)與PCB制造技術(shù)結(jié)合,出現(xiàn)了各種各樣新型封裝的復(fù)合元件。另外,在制造多層板時,不但可以把電阻、電容、電感、ESD元件等無源元件做在里面,需要時可以將其放在靠近集成電路引腳的地方,而且還能夠把一些有源元件做在里面;不但可以將印刷電路板做得小、薄、輕、快、便宜,而且可使其性能更好。總之,隨著小型化高密度封裝的發(fā)展,更加模糊了一級封裝與二級封裝之間的界線。隨著新型元器件的不斷涌現(xiàn),一些新技術(shù)、新工藝也隨之產(chǎn)生，江蘇smt電子貼片生產(chǎn),從而極大地促進了表面組裝工藝技術(shù)的改進、創(chuàng)新和發(fā)展,使SMT工藝技術(shù)向更先進、更可靠的方向發(fā)展。smt貼片加工的優(yōu)點:組裝密度高、電子產(chǎn)品體積小，江蘇smt電子貼片生產(chǎn)、重量輕，貼片元件的體積和重量只有傳統(tǒng)插裝元件的1/10左右。隨著SMT貼片加工的飛速發(fā)展，江蘇smt電子貼片生產(chǎn),不但元器件的尺寸越來越小、SMT貼片元件密度越來越高。江蘇smt電子貼片生產(chǎn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇smt電子貼片生產(chǎn),SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258719462891/5378899.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），確保無多料、少料、錯件、錯位、反向、移位等不良現(xiàn)象。上海smt貼片質(zhì)量要求SMT貼片加工清洗劑：中度毛細作用，黏度小，能夠滲透在被洗電路板元器件的縫隙中，而且又容易排出。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇smt電子貼片生產(chǎn),SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258582382813/5781319.png"></div><p style="text-indent:25px">SMT貼片波峰焊首件焊接并檢驗：1、用自動上板機，或人工把PCB輕輕放在傳送帶（或夾具）上，機器自動完成噴涂助焊劑、干燥、預(yù)熱、波峰焊、冷卻等操作。2、在波峰焊出口處接住PCB。3、按照行業(yè)標(biāo)準(zhǔn)《焊點質(zhì)量評定》SJ/T10666-1995或IPC-A-610E進行首件焊接質(zhì)量檢驗。根據(jù)首件焊接結(jié)果調(diào)整焊接參數(shù)，直到質(zhì)量符合要求后才能進行連續(xù)批量生產(chǎn)。PCBA首件檢驗我們之前就已經(jīng)反復(fù)強調(diào)過，其重要性不言而喻。為什么說在波峰焊后要進行首件檢測呢？其實PCBA的主要生產(chǎn)流程是：錫膏印刷、SMT貼片、回流焊焊接、DIP插件、波峰焊焊接。如果沒有問題的話，經(jīng)過了波峰焊焊接的電路板就可以拿回去組裝成完成品了。那么如果我們對一個已經(jīng)走完了生產(chǎn)流程的產(chǎn)品不加檢驗就去生產(chǎn)，如果出現(xiàn)品質(zhì)異常，那么已經(jīng)組裝好的產(chǎn)品也要拆下來重新返修。所以除非是客戶明確表示不用做首件檢測的情況，其余情況下，PCBA加工廠一定要在波峰焊接完成之后進行首件檢測，經(jīng)過檢驗合格之后跟客戶確認，下一步在進行量產(chǎn)和批量生產(chǎn)才是一個可行的方案。</p><p style="text-indent:25px">直接接觸stm貼片產(chǎn)品的操作人員，需要戴防靜電手腕帶，并要求戴防靜電手腕帶的操作人員每天上、下年上班前各測試一次，以保證手腕帶與人體的良好接觸。同時，每天安排相關(guān)人員監(jiān)督檢查，并對員工進行貼片加工防靜電方面的知識培訓(xùn)和現(xiàn)場管理。生產(chǎn)過程中手拿產(chǎn)品時，只能拿產(chǎn)品邊緣無電子元器件處;生產(chǎn)后產(chǎn)品必須裝在防靜電包裝中;安裝時，要求一次拿一塊產(chǎn)品，不允許一次拿多塊產(chǎn)品。SMT加工廠在返工操作時，必須將要修理的產(chǎn)品放在防靜電裝置中.再拿到返修工位。整個生產(chǎn)過程中用到的設(shè)備和工具都應(yīng)具有防靜電能力。SMT貼片加工之后經(jīng)過測試驗收合格的產(chǎn)品，應(yīng)用離子噴槍噴射一次再包裝起來。中山有哪些大一些的SMT貼片廠商？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇smt電子貼片生產(chǎn),SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258702304688/5407070.png"></div><p style="text-indent:25px">SMT貼片再流焊設(shè)備的質(zhì)量是：再流焊質(zhì)量與設(shè)各有著十分密切的關(guān)系。影響SMT貼片再流焊質(zhì)量的主要參數(shù)如下。1、溫度控制精度應(yīng)達到0.1-0.2℃，溫度傳感器的靈敏度要滿足要求2、溫度分布的均勻性，無鉛要求傳輸帶橫向溫差＜生2℃，否則很難保證整板的焊接質(zhì)量3、加熱區(qū)長度。加熱區(qū)長度越長、加熱區(qū)數(shù)量越多，越容易調(diào)整和控制溫度曲線。4、傳送帶運行要平穩(wěn)，傳送帶振動會造成移位、立碑、冷焊等焊接缺陷。5、加熱效率會影響溫度曲線的調(diào)整和控制。加熱效率與設(shè)各結(jié)構(gòu)、空氣流動設(shè)計等有關(guān)6、是否配備氮氣保護系統(tǒng)，氮氣保護可以減少高溫氧化，提高焊點浸潤性7、應(yīng)具備溫度曲線測試功能，如果設(shè)備無此配置，應(yīng)外購溫度曲線采集器。SMT表面組裝技術(shù)也愈加成熟，設(shè)備和功能也在不斷完善，SMT貼片加工技術(shù)已經(jīng)逐漸取代傳統(tǒng)插裝技術(shù)。江蘇smt電子貼片生產(chǎn)</p><p style="text-indent:25px">SMT貼片加工注意事項：電路板的插件板需要提前把電子物料準(zhǔn)備好，注意電容極性方向須正確無誤。江蘇smt電子貼片生產(chǎn)</p><p style="text-indent:25px">現(xiàn)在隨著SMT貼片無鉛化的發(fā)展，近來在傳統(tǒng)氣相焊設(shè)各的基礎(chǔ)上開發(fā)了學(xué)生一種可以基于噴射系統(tǒng)原理的新方法，這種教學(xué)方法研究能夠更加精確地管理控制以及焊接工作介質(zhì)蒸氣的數(shù)量，同時在密閉腔體內(nèi)對組裝板進行再流焊?；亓鳒囟群涂刂圃撉€的自由度比氣相焊接系統(tǒng)的傳統(tǒng)方法更高，真空在熔融焊料焊接時，能夠消除氣泡期間形成，提高可靠性，并降低PCBA的處理成本。該設(shè)備可以采用先進的噴射法氣相焊接工作方式，根據(jù)企業(yè)不同環(huán)境溫度變化曲線的要求把一定數(shù)量的情性介質(zhì)氟油噴入處理腔中。當(dāng)液體接觸到處理室的內(nèi)表面時，液體迅速蒸發(fā)形成蒸氣霧。流體進入的量的控制，有可能控制由蒸氣霧攜帶的熱能，可以非常精確和期望的溫度分布的靈活控制。與傳統(tǒng)再流焊比較，具有一定可靠性高、焊點無空洞、缺陷率低等優(yōu)點。江蘇smt電子貼片生產(chǎn)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2991117.html</p></div></div></div></div></div><div id="eyfcobd" class="page-right twoColRt"><div id="3ewtq77" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8iurtkr" 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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