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href="http://www.cdcfah.com/cp/first-_dzyqj/">電子元器件</a>?<a href="http://www.cdcfah.com/cp/second-dzyqj_dzcllbjjgj/">電子材料、零部件、結(jié)構(gòu)件</a>?<a href="http://www.cdcfah.com/cp/third-dzcllbjjgj_dzwjcl/">電子五金材料</a>?上海電路板SMT貼片加工廠深圳市潤(rùn)澤五洲電子供應(yīng)</p><div id="pzwolnu" class="leftbox clearfix"><h1>上海電路板SMT貼片加工廠深圳市潤(rùn)澤五洲電子供應(yīng)</h1><div id="h8n7lse" class="proBig"><div id="8povxp2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/rzwz888/637303273384580078/2421472.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rvxkmtv" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/rzwz888/637303273384580078/2421472.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="q78yfho" 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>上海電路板SMT貼片加工廠,SMT貼片</p><p><span>***更新：</span>2020-12-01 06:15:49</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="bvnu283" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市潤(rùn)澤五洲電子科技有限公司</a></p><p><span>聯(lián)系人：</span>劉路</p><p><span>郵箱: </span>6259193@qq.com</p><p><span>電話: </span>15813866860</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.run-five.com</p><p><span>手機(jī): </span>0755-89884486</p><p><span>地址: </span>龍崗街道南聯(lián)瑞記路1號(hào)恒?？萍紙@A棟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="zyahj38" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="lpr8wnu" class="box"><p><p style="text-indent:25px">smt貼片加工中焊料按其組成部分，可以分為錫鉛焊料、銀焊料、銅焊料。按照使用的環(huán)境濕度又可分為高溫焊錫(在高溫下使用的焊錫)和低溫焊錫(在低溫環(huán)境下使用的焊料)。貼片加工中為了使焊接質(zhì)量得到保障，視被焊物的不同，選用不同的焊料是重要的。在電子產(chǎn)品裝配中，一般都選用錫鉛系列焊料，也稱焊錫。焊錫有如下的特點(diǎn)：具有良好的導(dǎo)電性：因錫、鉛焊料均屬良導(dǎo)體，故它的電阻很小。對(duì)元器件引線和其他導(dǎo)線的附著力強(qiáng)，不易脫落，上海電路板SMT貼片加工廠，上海電路板SMT貼片加工廠，上海電路板SMT貼片加工廠。熔點(diǎn)低：它在180℃時(shí)便可熔化，使用25W外熱式或20W內(nèi)熱式電烙鐵便可進(jìn)行焊接。smt貼片加工廠在選購(gòu)貼片機(jī)時(shí)，在精度與價(jià)格之間應(yīng)確定好平衡點(diǎn)。上海電路板SMT貼片加工廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電路板SMT貼片加工廠,SMT貼片" src="https://tyunfile.71360.com/UploadFile/rzwz888/637303273384580078/2421472.png"></div><p style="text-indent:25px">貼片工藝單面組裝：來料檢測(cè) => 絲印焊膏(點(diǎn)貼片膠)=> 貼片 => 烘干(固化)=> 回流焊接 =>清洗 => 檢測(cè) => 返修。雙面組裝：來料檢測(cè) => PCB的A面絲印焊膏(點(diǎn)貼片膠)=> 貼片 PCB的B面絲印焊膏(點(diǎn)貼片膠)=> 貼片 =>烘干 => 回流焊接(好*對(duì)B面 => 清洗 => 檢測(cè) => 返修)。來料檢測(cè) => PCB的A面絲印焊膏(點(diǎn)貼片膠)=> 貼片 => 烘干(固化)=>A面回流焊接 => 清洗 => 翻板 = PCB的B面點(diǎn)貼片膠 => 貼片 => 固化 =>B面波峰焊 => 清洗 => 檢測(cè) => 返修)。此工藝適用于在PCB的A面回流焊，B面波峰焊。在PCB的B面組裝的SMD中，只有SOT或SOIC(28)引腳以下時(shí)，宜采用此工藝。上海電路板SMT貼片加工廠SMT發(fā)展起來，由于其涉及多學(xué)科領(lǐng)域，使其在發(fā)展初期較為緩慢，隨著各學(xué)科領(lǐng)域的協(xié)調(diào)發(fā)展。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電路板SMT貼片加工廠,SMT貼片" src="https://tyunfile.71360.com/UploadFile/rzwz888/637303273432421875/5369002.png"></div><p style="text-indent:25px">SMT貼片加工要求及操作注意事項(xiàng)：在焊接之前先在焊盤上涂上助焊劑，用烙鐵處理一遍，以免焊盤鍍錫不良或被氧化，造成不好焊，芯片則一般不需處理。開始焊接所有的引腳時(shí)，應(yīng)在烙鐵尖上加上焊錫，將所有的引腳涂上焊劑使引腳保持濕潤(rùn)。用烙鐵尖接觸芯片每個(gè)引腳的末端，直到看見焊錫流入引腳。在焊接時(shí)要保持烙鐵尖與被焊引腳并行，防止因焊錫過量發(fā)生搭接。用鑷子小心地將PQFP芯片放到PCB板上，注意不要損壞引腳，使其與焊盤對(duì)齊，要保證芯片的放置方向正確。焊完所有的引腳后，用焊劑浸濕所有引腳以便清洗焊錫。</p><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(shí)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(dòng)化。正是因?yàn)镾MT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(jī)，電腦，厚厚的收音機(jī)……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?cè)僖膊灰驗(yàn)榉烹娨曊业胤蕉鵁?，再也不必因?yàn)榛丶叶鴵?dān)心自己買的電腦帶不回家。SMT可靠性高、抗振能力強(qiáng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電路板SMT貼片加工廠,SMT貼片" src="https://tyunfile.71360.com/UploadFile/rzwz888/637303273318037109/2211608.png"></div><p style="text-indent:25px">SMT貼片加工中去除誤印錫膏的正確方法步驟：常見錫膏問題：可以用小刮鏟來將誤印的錫膏從板上去掉嗎?這會(huì)不會(huì)將錫膏和小錫珠弄到孔里和小的縫隙里?用小刮鏟刮的方法來將錫膏從誤印的板上去掉可能造成一些問題。一般可行的辦法是將誤印的板浸入一種兼容的溶劑中，如加入某種添加劑的水，然后用軟毛刷子將小錫珠從板上去除。寧愿反復(fù)的浸泡與洗刷，而不要猛烈的干刷或鏟刮。在錫膏印刷之后，操作員等待清洗誤印的時(shí)間越長(zhǎng)，越難去掉錫膏。誤印的板應(yīng)該在發(fā)現(xiàn)問題之后馬上放入浸泡的溶劑中，因?yàn)殄a膏在干之前容易去除。SMT基本工藝構(gòu)成要素包括:絲印(或點(diǎn)膠),貼裝(固化),回流焊接,清洗,檢測(cè)，返修。上海電路板SMT貼片加工廠</p><p style="text-indent:25px">smt貼片構(gòu)成還包括：固化：其作用是將貼片膠融化，從而使表面組裝元器件與PCB板牢固粘接在一起。上海電路板SMT貼片加工廠</p><p style="text-indent:25px">smt貼片后焊加工、元器件不耐高溫。無鉛技術(shù)正變得越來越流行。通過波峰焊接時(shí)，爐內(nèi)的溫度高于鉛的溫度。因此，一些不耐高溫的元器件無法通過波峰焊接。元器件過高；波焊接對(duì)元件的高度也是有限的，元器件過高會(huì)到導(dǎo)致通過不了波峰焊；有少量的插件在過波峰那面；在一塊電路板中，在過波峰焊的一側(cè)將有一些插件，如果是少量的插件，則可以使用后焊加工來提率；元器件插件靠近工藝邊；元器件插件位置靠近板邊會(huì)碰到流水線，影響正常焊接。特殊元器件，對(duì)于有特殊要求的SMT代工代料高靈敏度元器件，也不能過波峰焊。上海電路板SMT貼片加工廠</p><p style="text-indent:25px">深圳市潤(rùn)澤五洲電子科技有限公司是一家電子產(chǎn)品設(shè)備、電子玩具、智能玩具、新能源電子產(chǎn)品及設(shè)備、電子元器件、電子零部件的技術(shù)開發(fā)、銷售；電路板的研發(fā)、銷售；計(jì)算機(jī)軟硬件的技術(shù)開發(fā)；國(guó)內(nèi)貿(mào)易（不含專營(yíng)、專賣、?？厣唐罚浑娮赢a(chǎn)品設(shè)備、電子玩具、智能玩具、新能源電子產(chǎn)品及設(shè)備、電子元器件、電子零部件、電路板的生產(chǎn)。的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。公司自創(chuàng)立以來，投身于方案設(shè)計(jì)，電路板加工，PCBA OEM，SMT貼片，是電子元器件的主力軍。潤(rùn)澤五洲致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。潤(rùn)澤五洲始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使?jié)櫇晌逯拊谛袠I(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2218684.html</p></div></div></div></div></div><div id="l2i93am" class="page-right twoColRt"><div id="8ykm3wt" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rgdasj7" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="dcuby8k" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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