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href="http://www.cdcfah.com/cp/third-dzyqj_kcdzyqjcl/">庫(kù)存電子元器件、材料</a>?浙江貼片工廠中山市浩明電子科技供應(yīng)</p><div id="xbtqct8" class="leftbox clearfix"><h1>浙江貼片工廠中山市浩明電子科技供應(yīng)</h1><div id="ckm2dpb" class="proBig"><div id="ae38npb" 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="rahoqso" 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="jdfheli" 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>浙江貼片工廠,SMT貼片</p><p><span>***更新：</span>2020-09-12 15:06:18</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="rgtqnul" 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="87zwyah" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8nuwszb" class="box"><p><p style="text-indent:25px">SMT貼片加工中造成空洞、裂紋的原因很多，主要有以下方面因素： 1、焊接面（PCB焊盤(pán)與元件焊端表面）存在浸潤(rùn)不良； 2、焊料氧化； 3、焊接面各種材料的膨脹系數(shù)不匹配，焊點(diǎn)凝固時(shí)不平穩(wěn)； 4、再流焊溫度曲線的設(shè)置未能使焊音中的有機(jī)揮發(fā)物及水分在進(jìn)入回流區(qū)前揮發(fā)。無(wú)鉛焊料的問(wèn)題是高溫、表面張力大、黏度大。表面張力的增加勢(shì)必會(huì)使氣體在冷卻階段的外逸更困難，氣體不容易排出來(lái)，使空洞的比例增加，浙江貼片工廠，浙江貼片工廠。因此，浙江貼片工廠，SMT貼片中無(wú)鉛焊點(diǎn)中的氣孔、空洞比較多。SMT貼片機(jī)的維護(hù)和保養(yǎng)是整個(gè)PCBA制造工序中的重要事情。浙江貼片工廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江貼片工廠,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258778203125/6865220.png"></div><p style="text-indent:25px">清潔時(shí)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。清潔吸嘴后，一定要再涂上硅酮潤(rùn)滑油。將少量硅酮潤(rùn)滑油涂在吸墊的外表面上，然后再用干布擦去潤(rùn)滑油，可防止橡膠吸墊變質(zhì)。檢査空氣壓力，這一步主要檢查真空排出管的性能。首先打開(kāi)真空閥門(mén)，然后用手指堵住吸嘴頂部，查看負(fù)壓是否大于0.08MPa（600mmHg）。SMT貼片機(jī)械潤(rùn)滑：對(duì)以下部件每月進(jìn)行一次潤(rùn)滑。X軸球形螺釘，X軸引導(dǎo)器；y軸引導(dǎo)器、引導(dǎo)軸、球形螺釘、調(diào)節(jié)螺釘；傳輸導(dǎo)軌引導(dǎo)軸；貼裝頭球形螺桿、線性通路、潤(rùn)滑油孔、多槽軸；托盤(pán)供料器的球形螺釘、滑動(dòng)組件、多槽軸。浙江貼片工廠SMT貼片加工中焊膏中焊劑含量太高，在回流焊過(guò)程中過(guò)多的焊劑的流動(dòng)導(dǎo)致了元器件的移位。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江貼片工廠,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258582382813/5781319.png"></div><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(kāi)始之前，錫膏一定要經(jīng)過(guò)回溫（錫膏的特性和要求使它必須要低溫存儲(chǔ)）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。PCBA加工完成之后，如果客戶沒(méi)有及時(shí)提貨或者需要暫時(shí)存放的話，首先要注意存儲(chǔ)方式。之后要考慮到客戶的貨運(yùn)渠道，來(lái)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(méi)有加裝外殼和沒(méi)有涂敷三防漆的產(chǎn)品在這個(gè)過(guò)程中出現(xiàn)受潮、氧化等不良。</p><p style="text-indent:25px">隨著SMT貼片無(wú)鉛化的發(fā)展，近來(lái)在傳統(tǒng)氣相焊設(shè)各的基礎(chǔ)上開(kāi)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(wú)空洞、缺陷率低等優(yōu)點(diǎn)。在SMT貼片加工的錫膏中常用的錫粉顆粒與助焊劑的體積之比約為1：1。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江貼片工廠,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258649472657/2463037.png"></div><p style="text-indent:25px">在SMT貼片廠中，通常為了保證SMT貼片機(jī)的系統(tǒng)性操作安全性，SMT貼片機(jī)的操作，不**需要有經(jīng)過(guò)專業(yè)知識(shí)培訓(xùn)的有經(jīng)驗(yàn)的技術(shù)人員和通行的管理人員來(lái)協(xié)同進(jìn)行機(jī)器的操作，以此來(lái)保證SMT貼裝的高可靠性和直通率，焊接不良率，良好的高頻特性。減少了一個(gè)電磁和射頻信號(hào)干擾。易實(shí)現(xiàn)自動(dòng)化，提高生產(chǎn)效率。一般管理規(guī)定SMT工廠生產(chǎn)車(chē)間的溫度在25±3℃之間。SMT貼裝密度高，電子產(chǎn)品體積小，重量輕，SMT貼片元器件的體積大小和重量**只是傳統(tǒng)插裝元器件的一半甚至是十分之一左右。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%，重量減少60%~80%。SMT貼片在生產(chǎn)前實(shí)際上分為幾個(gè)階段，包括開(kāi)機(jī)檢查、初驗(yàn)、開(kāi)機(jī)、生產(chǎn)、停機(jī)等。浙江貼片工廠</p><p style="text-indent:25px">單面板的SMT貼片加工工藝是比較簡(jiǎn)單的。浙江貼片工廠</p><p style="text-indent:25px">SMT貼片生產(chǎn)前準(zhǔn)備：元件位置圖在生產(chǎn)之前必須全部做好，且需打一份原始BOM與工程提供的清單(A、B面分開(kāi))進(jìn)行核對(duì)，確保無(wú)少料、錯(cuò)料、多料現(xiàn)象。然后將元件位置圖上有極性元件的方向與PCB空板進(jìn)行核對(duì)。檢查來(lái)料的品質(zhì)狀態(tài)（標(biāo)識(shí)上有無(wú)QAPASS章，是否為緊急放行物料）。首件制作與確認(rèn)：轉(zhuǎn)線/ECN工程方案變更/新機(jī)型試產(chǎn)時(shí)需完成首件制作與確認(rèn)，否則不得開(kāi)機(jī)生產(chǎn)。在制作首件核對(duì)過(guò)程中，如果為舊型號(hào)轉(zhuǎn)線，則產(chǎn)線先開(kāi)機(jī)生產(chǎn)，但所生產(chǎn)的板不過(guò)回流爐，待首件核對(duì)確認(rèn)無(wú)誤之后再正常過(guò)爐生產(chǎn)；如果是新機(jī)型轉(zhuǎn)線，則必須首件核對(duì)確認(rèn)無(wú)誤之后才可以開(kāi)機(jī)正常生產(chǎn)。浙江貼片工廠</p><p style="text-indent:25px">中山市浩明電子科技有限公司是一家SMT (貼片)+COB(邦定) 來(lái)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。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。浩明電子擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供汽車(chē)周邊產(chǎn)品，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡。浩明電子不斷開(kāi)拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。浩明電子始終關(guān)注電子元器件市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長(zhǎng)共贏。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1257027.html</p></div></div></div></div></div><div id="3wdahj2" class="page-right twoColRt"><div id="8ahjvhe" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="4szw7xr" 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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