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class="home-main container clearfix"><div id="eiv7vs2" class="twoCol"><div id="c3b8s7j" 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>?天津SMT代加工中山市浩明電子科技供應(yīng)</p><div id="mg2b72b" class="leftbox clearfix"><h1>天津SMT代加工中山市浩明電子科技供應(yīng)</h1><div id="fzroqsw" class="proBig"><div id="21q9q37" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258666201172/1858767.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="imjgdu3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258666201172/1858767.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ecjgset" 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>天津SMT代加工,SMT貼片</p><p><span>***更新：</span>2020-08-26 20:17:22</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="odvn7jd" 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="bv2p9eg" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="shzwtf2" class="box"><p><p style="text-indent:25px">在SMT貼片加工的錫膏中比較常用的錫粉顆粒與助焊劑的體積之比約為1：1。SMT貼片加工開始之前，錫膏一定要經(jīng)過回溫（錫膏的特性和要求使它必須要低溫存儲）和充分的攪拌。比較關(guān)鍵的是回溫不能使用超常加熱的方式進(jìn)行回溫，天津SMT代加工。PCBA加工完成之后，如果客戶沒有及時提貨或者需要暫時存放的話，天津SMT代加工，首先要注意存儲方式。之后要考慮到客戶的貨運(yùn)渠道，來選擇相應(yīng)的包裝方式和程度。并且注意環(huán)境的干濕程度，以免沒有加裝外殼和沒有涂敷三防漆的產(chǎn)品在這個過程中出現(xiàn)受潮、氧化等不良。SMT貼片加工中錫膏本身的粘性不夠，天津SMT代加工，元器件在搬運(yùn)時發(fā)生振蕩、搖晃等問題而造成了元器件移位。天津SMT代加工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津SMT代加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258666201172/1858767.png"></div><p style="text-indent:25px">SMT貼片加工模板制作工藝要求：一、對模板(焊盤)開口尺寸和形狀的修改要求。通常大于3mm的焊盤，為防止焊膏圖形發(fā)生回陷和預(yù)防錫珠，開口采用“架橋”的方式，線寬為0.4mm，使開口小于3mm，可按焊盤大小均分。各種元件對模板厚度與開口尺寸要求。 1、μBGA/CSP、?FlipChip采用方形開口比采用圓形開口的印刷質(zhì)量好。 2、當(dāng)使用免清洗焊膏、采用免清洗工藝時，模板的開口尺寸應(yīng)縮小5%～10%： 3、無鉛工藝模板開口設(shè)計比有鉛大一些，焊膏盡可能完全覆蓋焊盤。二、適當(dāng)?shù)拈_口形狀可改善SMT貼片加工效果。例如，當(dāng)Chip元件尺寸小于公制1005時，由于兩個焊盤之間的距離很小，貼片時兩端焊盤上的焊膏在元件底部很容易粘連，再流焊后很容易產(chǎn)生元件底部的橋接和焊球。因此，加工模板時可將一對矩形焊盤開口的內(nèi)側(cè)修改成尖角形或弓形，減少元件底部的焊膏量，這樣可以改善貼片時元件底部的焊音粘連。天津SMT代加工SMT貼片是表面組裝技術(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="天津SMT代加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258632216797/5876714.png"></div><p style="text-indent:25px">對于直接接觸stm貼片產(chǎn)品的操作人員，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(jìn)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，*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(yàn)收合格的產(chǎn)品，應(yīng)用離子噴槍噴射一次再包裝起來。</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，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影響PCBA中個元器件的連接強(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影響PCBA產(chǎn)品的長期可靠性。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)。空洞的位置和分布可能是造成電連接失效的潛在原因。特別是功率元件空洞測會使元件熱阻增大，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在無鉛焊接時的溶解速度比Sn-Pb焊接時高許多。無鉛焊料中銅的高溶解性會在銅與焊料的界面產(chǎn)生“空洞”，隨著時間的推移，這些空洞有可能會削弱焊點(diǎn)的可靠性。SMT加工中自動在線檢測：自動在線檢測系統(tǒng)與內(nèi)置檢測系統(tǒng)相比有很多優(yōu)點(diǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津SMT代加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258735019532/2382925.png"></div><p style="text-indent:25px">SMT氣路模組保養(yǎng):氣路是貼片機(jī)正常運(yùn)作的關(guān)鍵因素，包括電磁閥、真空發(fā)生裝置、氣缸部分。該處因?yàn)榕c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，從而造成拋料、缺件等；嚴(yán)重情況下，堆積的油塵混合物會堵塞真空發(fā)生器、電磁閥、氣缸等密封件，造成機(jī)器部件的損壞，影響機(jī)器的使用。 SNT整機(jī)維護(hù)。目前行業(yè)內(nèi)有一個職位叫貼片機(jī)修師。類似于經(jīng)過了廠家培訓(xùn)的工種，可以對整機(jī)進(jìn)行完善的維護(hù)。由于磨損和變形長時間使用的機(jī)器，老化，運(yùn)行現(xiàn)象份部門之間發(fā)生的微小偏差（例如：磨損，擦傷，馬達(dá)，螺絲松動固定螺釘，在機(jī)器框架線電纜的作用不好的一些機(jī)械部件，參數(shù)為了在設(shè)置錯誤等），機(jī)器的維護(hù)，以避免風(fēng)險，不能及時解決，勢必會對正常的生產(chǎn)機(jī)器的未來構(gòu)成威脅，必須將本機(jī)大保養(yǎng)，及時檢查，發(fā)現(xiàn)內(nèi)的機(jī)器和解決隱患，從而降低機(jī)器故障的發(fā)生頻度，提高生產(chǎn)效率。SMT貼片加工技術(shù)是實(shí)現(xiàn)電子產(chǎn)品小型化、高集成不可缺少重要貼裝工藝。天津SMT代加工</p><p style="text-indent:25px">清潔時不要將酒精酒在SMT貼片機(jī)的吸嘴標(biāo)記上。如果不小心灑上了，要立即將其擦去。天津SMT代加工</p><p style="text-indent:25px">SMT貼片拾片失?。?.SMT貼片時的拾片高度不合適,由于元件厚度或Z軸高度設(shè)置錯誤,檢查后按實(shí)際值修正。2.拾片坐標(biāo)不合適,可能由于供料器的供料中心沒有調(diào)整好,應(yīng)重新調(diào)整供料器。3.編帶供料器的塑料薄膜沒有撕開,一般都是由于卷帶沒有安裝到位或卷帶輪松緊不合適造成的,應(yīng)重新調(diào)整供料器。4.吸嘴堵塞,應(yīng)清洗吸嘴。5.吸嘴端面有臟物或有裂紋,造成漏氣。6.吸嘴型號不合適,孔徑太大會造成漏氣,孔徑太小會造成吸力不夠。7.氣壓不足或氣路堵塞,檢查氣路是否漏氣,增加氣壓或疏通氣路。天津SMT代加工</p><p style="text-indent:25px">中山市浩明電子科技有限公司坐落在東區(qū)白沙灣第二工業(yè)區(qū)C2幢4樓，是一家專業(yè)的SMT (貼片)+COB(邦定) 來料代加工，擁有8條高精密全自動生產(chǎn)線，可貼裝 0402 、 0201 、SOT 、SOP 、BGA 、FPC插座、USB接口、QFP 、QFN 、PLCC 等各類高精密異形元件，有3臺COB邦機(jī)，全自動固晶機(jī)、封膠機(jī)，能高效率 ***完成邦定需求。公司。公司目前擁有11~50人員工，為員工提供廣闊的發(fā)展平臺與成長空間，為客戶提供高質(zhì)高速的產(chǎn)品服務(wù)，深受員工與客戶好評。中山市浩明電子科技有限公司主營業(yè)務(wù)涵蓋汽車周邊產(chǎn)品，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡，堅持“質(zhì)量優(yōu)先、質(zhì)量服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。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，樹立了優(yōu)良的汽車周邊產(chǎn)品，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡形象，贏得了社會各界的信任和認(rèn)可。</p></p><br /><p>文章來源地址: 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