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class="tigs"> 發(fā)信息做推廣就找產(chǎn)品網(wǎng)<br />企業(yè)電商信息綜合服務(wù)平臺 </span><div id="wocquy8" class="searchbox"><div id="m2yyi0o" class="searchLt"><div id="ec8y8ys" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="akmm8sg" class="clearfix searchWrap"><div id="6ewysce" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="cuiuoso" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = 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src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258616425782/2441777.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="y2g8uwq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258616425782/2441777.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ywiuoie" 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>貼片加工smt加工,SMT貼片</p><p><span>***更新：</span>2021-01-16 03:11:45</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="ueguoke" 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="cwimoso" class="page-proshow02"><p class="title">詳細說明</p><div id="syieicq" class="box"><p><p style="text-indent:25px">為什么要用SMT：1、電子產(chǎn)品追求小型化，以前使用的穿孔插件元件已無法縮小。2、電子產(chǎn)品功能更完整，所采用的集成電路(IC）已無穿孔元件，特別是大規(guī)模、高集成IC，不得不采用表面貼片元件。3、產(chǎn)品批量化，生產(chǎn)自動化，廠方要以低成本高產(chǎn)量，出產(chǎn)優(yōu)良產(chǎn)品以迎合顧客需求及加強市場競爭力4、電子元件的發(fā)展，貼片加工smt加工，集成電路(IC）的開發(fā)，半導體材料的多元應(yīng)用。5、電子科技**勢在必行，貼片加工smt加工，追逐國際潮流，貼片加工smt加工。6、高頻特性好。減少了電磁和射頻干擾。易于實現(xiàn)自動化，提高生產(chǎn)效率，降低成本。smt貼片加工技術(shù)已得到電子行業(yè)的認可。貼片加工smt加工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貼片加工smt加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258616425782/2441777.png"></div><p style="text-indent:25px">SMT是表面組裝技術(shù)（表面貼裝技術(shù)），是目前電子組裝行業(yè)里非常流行的一種技術(shù)和工藝。SMT將傳統(tǒng)的電子元器件壓縮成為體積只有幾十分之一的器件,從而實現(xiàn)了電子產(chǎn)品組裝的高密度、高可靠、小型化、低成本，以及生產(chǎn)的自動化。正是因為SMT的這些特性，人們生產(chǎn)出各種小巧輕便的產(chǎn)品。以前的大屁股電視機，電腦，厚厚的收音機……都已經(jīng)成為歷史，技術(shù)的革新給我們帶來了徹底的改變。人們再也不要因為放電視找地方而煩惱，再也不必因為回家而擔心自己買的電腦帶不回家。貼片加工smt加工SMT貼片表面安裝元器件在功能上和插裝元器件沒有差別，其不同之處在于元器件的封裝。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貼片加工smt加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258921669922/441409.png"></div><p style="text-indent:25px">SMT貼片加工中出現(xiàn)元器件移位的原因是什么呢？1.錫膏本身的粘性不夠，元器件在搬運時發(fā)生振蕩、搖晃等問題而造成了元器件移位。2、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致了元器件的移位。3、元器件在印刷、貼片后的搬運過程中由于振動或是不正確的搬運方式引起了元器件移位。4、貼片加工時，吸嘴的氣壓沒有調(diào)整好，壓力不夠，造成元器件移位。5、貼片機本身的機械問題造成了元器件的安放位置不對。SMT貼片加工中一旦出現(xiàn)元器件移位，就會影響電路板的使用性能，因此在加工過程中就需要了解元器件移位的原因，并針對性進行解決。</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行光學對中。2.高速SMT貼片機模塊化。3.雙路輸送結(jié)構(gòu)。在保留傳統(tǒng)單路貼裝機的性能下,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,其工作方式可分為同步方式和異步方式。當同步方式運轉(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,當一塊印制板在進行器件貼裝時,另一塊印制板完成傳送、基準對準、壞板檢查等步驟,從而提高SMT加工廠的生產(chǎn)效率。SMT貼片加工清洗劑的選擇原則是：沸點高的消洗劑安全性好，可以同時通過不斷升溫提高清洗工作效率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貼片加工smt加工,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258851230469/6773526.png"></div><p style="text-indent:25px">SMT氣路模組的保養(yǎng):氣路是貼片機正常運作的關(guān)鍵因素，包括電磁閥、真空發(fā)生裝置、氣缸部分。該處因為與貼片機的精度和質(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，造成機器部件的損壞，影響機器的使用。SNT整機維護。目前行業(yè)內(nèi)有一個職位叫貼片機修師。類似于經(jīng)過了廠家培訓的工種，可以對整機進行完善的維護。由于磨損和變形長時間使用的機器，老化，運行現(xiàn)象份部門之間發(fā)生的微小偏差（例如：磨損，擦傷，馬達，螺絲松動固定螺釘，在機器框架線電纜的作用不好的一些機械部件，參數(shù)為了在設(shè)置錯誤等），機器的維護，以避免風險，不能及時解決，勢必會對正常的生產(chǎn)機器的未來構(gòu)成威脅，必須將本機大保養(yǎng)，及時檢查，發(fā)現(xiàn)內(nèi)的機器和解決隱患，從而降低機器故障的發(fā)生頻度，提高生產(chǎn)效率。SMT貼片機主要應(yīng)用于LED燈、電子產(chǎn)品、顯示屏領(lǐng)域,具有智能化的貼片操作,更精細的識別定位等特點。貼片加工smt加工</p><p style="text-indent:25px">SMT加工中錫膏使用前必須經(jīng)過解凍和回溫攪拌操作后才能使用。貼片加工smt加工</p><p style="text-indent:25px">因為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，峰值溫度往往要達到260℃左右，冷卻凝固到室溫的溫差大，因此，無鉛焊點的應(yīng)力也比較大。再加上較多的IMC，IMC的熱膨脹系數(shù)比較大，在高溫工作或強機械沖擊下容易產(chǎn)生開裂。QFP、Chp元件及BGA焊點空洞，分布在焊接界面的空洞會影響PCBA中個元器件的連接強度；SOJ引腳焊點裂紋及BGA焊球與焊盤界面的裂紋缺陷，焊點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)?？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的可靠性。貼片加工smt加工</p><p style="text-indent:25px">中山市浩明電子科技有限公司主營品牌有浩明，發(fā)展規(guī)模團隊不斷壯大，該公司生產(chǎn)型的公司。浩明電子是一家有限責任公司企業(yè)，一直“以人為本，服務(wù)于社會”的經(jīng)營理念;“誠守信譽，持續(xù)發(fā)展”的質(zhì)量方針。公司擁有專業(yè)的技術(shù)團隊，具有smt貼片，智能電子鎖，藍牙系列，網(wǎng)絡(luò)直播聲卡等多項業(yè)務(wù)。浩明電子將以真誠的服務(wù)、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來！</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2865539.html</p></div></div></div></div></div><div id="i0giugk" class="page-right twoColRt"><div id="ayseqe8" class="box01 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