杭州電子smt貼片加工誠信經(jīng)營(yíng) 中山市浩明電子科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="SMT貼片指的是在PCB基礎(chǔ)上進(jìn)行加工的系列工藝流程的簡(jiǎn)稱。PCB為印刷電路板。SMT是表面組裝技術(shù)（表面貼裝技術(shù)），是電子組裝行業(yè)里比較流行的一種技術(shù)和工藝。電子電路表面組裝技術(shù)，杭州電子smt貼片加工，杭州電子smt貼片加工，稱為表面貼"><meta name="keywords" content="杭州電子smt貼片加工,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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中山市浩明電子科技供應(yīng)</p><div id="1xvbfl1" class="leftbox clearfix"><h1>杭州電子smt貼片加工誠信經(jīng)營(yíng) 中山市浩明電子科技供應(yīng)</h1><div id="tbl3db1" class="proBig"><div id="fzfznvz" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258778203125/6865220.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="9jnjr7t" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258778203125/6865220.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="x93vt19" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>杭州電子smt貼片加工,SMT貼片</p><p><span>***更新：</span>2020-11-06 08:23:22</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="79vrljb" 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="tplbrhz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="xftxjt9" class="box"><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的簡(jiǎn)稱。PCB為印刷電路板。SMT是表面組裝技術(shù)（表面貼裝技術(shù)），是電子組裝行業(yè)里比較流行的一種技術(shù)和工藝。電子電路表面組裝技術(shù)，杭州電子smt貼片加工，杭州電子smt貼片加工，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(jiǎn)稱SMC/SMD，中文稱片狀元器件）安裝在印制電路板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)。在通常情況下我們用的電子產(chǎn)品都是由pcb加上各種電容，杭州電子smt貼片加工，電阻等電子元器件按設(shè)計(jì)的電路圖設(shè)計(jì)而成的,所以形形**的電器需要各種不同的SMT貼片加工工藝來加工?。SMT貼片再流焊設(shè)備的質(zhì)量：再流焊質(zhì)量與設(shè)各有著十分密切的關(guān)系。杭州電子smt貼片加工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州電子smt貼片加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258778203125/6865220.png"></div><p style="text-indent:25px">SMT貼片再流焊設(shè)備的質(zhì)量：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(dá)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(zhǎng)度。加熱區(qū)長(zhǎng)度越長(zhǎng)、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(yùn)行要平穩(wěn)，傳送帶振動(dòng)會(huì)造成移位、立碑、冷焊等焊接缺陷。 5、加熱效率會(huì)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(dòng)設(shè)計(jì)等有關(guān) 6、是否配備氮?dú)獗Ｗo(hù)系統(tǒng)，氮?dú)獗Ｗo(hù)可以減少高溫氧化，提高焊點(diǎn)浸潤(rùn)性 7、應(yīng)具備溫度曲線測(cè)試功能，如果設(shè)備無此配置，應(yīng)外購溫度曲線采集器。鎮(zhèn)江線路板貼片在一般選擇了SMT貼片加工之后，相應(yīng)的功能情況下電子產(chǎn)品的整體體積會(huì)減少40%~60%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州電子smt貼片加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258719462891/5378899.png"></div><p style="text-indent:25px">薄膜印刷線路SMT貼片：此類薄膜線路一般是用銀漿在PET上印刷線路。在此類薄膜線路上粘貼黏貼電子元器件有兩種工藝工法，一種謂之傳統(tǒng)工藝工法即3膠法(紅膠、銀膠、包封膠)或2膠法（銀膠、包封膠)，另一種謂之新工藝即1膠法---顧名思義，就是用一種膠即可完成粘貼黏貼電子元器件，而不再用3種膠或2種膠。此新工藝關(guān)鍵是使用一種新型導(dǎo)電膠，完全具有錫膏的導(dǎo)電性能和工藝性能；使用時(shí)完全兼容現(xiàn)行的SMT刷錫膏作業(yè)法，毋需添加任何設(shè)備。</p><p style="text-indent:25px">由于SMT貼片無鉛焊接溫度比有鉛焊接高，尤其大尺寸、多層板，以及有熱容量大的元器件時(shí)，峰值溫度往往要達(dá)到260℃左右，冷卻凝固到室溫的溫差大，因此，無鉛焊點(diǎn)的應(yīng)力也比較大。再加上較多的IMC，IMC的熱膨脹系數(shù)比較大，在高溫工作或強(qiáng)機(jī)械沖擊下容易產(chǎn)生開裂。QFP、Chp元件及BGA焊點(diǎn)空洞，分布在焊接界面的空洞會(huì)影響PCBA中個(gè)元器件的連接強(qiáng)度；SOJ引腳焊點(diǎn)裂紋及BGA焊球與焊盤界面的裂紋缺陷，焊點(diǎn)裂紋和焊接界面的裂紋都會(huì)影響PCBA產(chǎn)品的長(zhǎng)期可靠性。另一類是處于焊接界面的空洞(或稱微孔)，這類空洞非常小，甚至只有通過掃描電子顯微鏡（SEM）才能發(fā)現(xiàn)?？斩吹奈恢煤头植伎赡苁窃斐呻娺B接失效的潛在原因。特別是功率元件空洞測(cè)會(huì)使元件熱阻增大，造成失效。研究表明，焊接界面的空洞（微孔）主要是由于Cu的高溶解性造成的。由于無鉛焊料的熔點(diǎn)高，而且又是高Sn焊料，Cu在無鉛焊接時(shí)的溶解速度比Sn-Pb焊接時(shí)高許多。無鉛焊料中銅的高溶解性會(huì)在銅與焊料的界面產(chǎn)生“空洞”，隨著時(shí)間的推移，這些空洞有可能會(huì)削弱焊點(diǎn)的可靠性。SMT是表面組裝技術(shù)（表面貼裝技術(shù)），是電子組裝行業(yè)里當(dāng)下流行的一種技術(shù)和工藝。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州電子smt貼片加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258702304688/5407070.png"></div><p style="text-indent:25px">制作首件時(shí)發(fā)現(xiàn)時(shí)實(shí)物與SMT貼片位置圖的參數(shù)不一致時(shí)，首先我們先核對(duì)其原始BOM，查一下到底是哪一個(gè)環(huán)節(jié)出錯(cuò)，如果是SMT貼片位置圖問題，馬上反饋給品質(zhì)相關(guān)人員處。如果是工程程式打錯(cuò)，則通知工程更換程序。更正之后需再次核對(duì)整塊板。紅膠板要測(cè)試其拉力。測(cè)試OK的板正常過爐之后，我們需檢查其焊接效果。當(dāng)正常生產(chǎn)時(shí)，如果同一位置或同一種缺陷多次出現(xiàn)時(shí)，我們應(yīng)立即通知工程改善，并監(jiān)督改善情況。正常情況下一訂單只做一次首件并保留到清尾。廣東有哪些好的SMT貼片公司？天津smt貼片加工原理</p><p style="text-indent:25px">SMT基本工藝：錫膏印刷--> 零件貼裝-->回流焊接-->AOI光學(xué)檢測(cè)--> 維修--> 分板。杭州電子smt貼片加工</p><p style="text-indent:25px">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(shí)在密閉腔體內(nèi)對(duì)組裝板進(jìn)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(shí)，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(jìn)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(shí)，液體迅速蒸發(fā)形成蒸氣霧。流體進(jìn)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(diǎn)無空洞、缺陷率低等優(yōu)點(diǎn)。杭州電子smt貼片加工</p><p style="text-indent:25px">中山市浩明電子科技有限公司擁有SMT (貼片)+COB(邦定) 來料代加工，擁有8條高精密全自動(dòng)生產(chǎn)線，可貼裝 0402 、 0201 、SOT 、SOP 、BGA 、FPC插座、USB接口、QFP 、QFN 、PLCC 等各類高精密異形元件，有3臺(tái)COB邦機(jī)，全自動(dòng)固晶機(jī)、封膠機(jī)，能高效率 ***完成邦定需求。等多項(xiàng)業(yè)務(wù)，主營(yíng)業(yè)務(wù)涵蓋smt貼片，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡。公司目前擁有專業(yè)的技術(shù)員工，為員工提供廣闊的發(fā)展平臺(tái)與成長(zhǎng)空間，為客戶提供高質(zhì)的產(chǎn)品服務(wù)，深受員工與客戶好評(píng)。誠實(shí)、守信是對(duì)企業(yè)的經(jīng)營(yíng)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。公司憑著雄厚的技術(shù)力量、飽滿的工作態(tài)度、扎實(shí)的工作作風(fēng)、良好的職業(yè)道德，樹立了良好的smt貼片，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡形象，贏得了社會(huì)各界的信任和認(rèn)可。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1873609.html</p></div></div></div></div></div><div id="pjbhbf1" class="page-right twoColRt"><div id="pth1p1f" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="d7hhhdt" 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)" class="vcenter" 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