深圳標(biāo)準(zhǔn)SMT貼片工藝歡迎咨詢中山市浩明電子科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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焊盤與元件焊端表面）存在浸潤不良；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)"><meta name="keywords" content="深圳標(biāo)準(zhǔn)SMT貼片工藝,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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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="pmidplt" 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="elcyp8j" 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>深圳標(biāo)準(zhǔn)SMT貼片工藝,SMT貼片</p><p><span>***更新：</span>2021-01-20 04:12:00</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="wzlhy7z" 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="vtuqhm2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="sz83ym4" 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焊盤與元件焊端表面）存在浸潤不良；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)。無鉛焊料的問題是高溫、表面張力大、黏度大。表面張力的增加勢必會使氣體在冷卻階段的外逸更困難，深圳標(biāo)準(zhǔn)SMT貼片工藝，深圳標(biāo)準(zhǔn)SMT貼片工藝，氣體不容易排出來，使空洞的比例增加。因此，SMT貼片中無鉛焊點(diǎn)中的氣孔，深圳標(biāo)準(zhǔn)SMT貼片工藝、空洞比較多。smt貼片加工的優(yōu)點(diǎn):組裝密度高、電子產(chǎn)品體積小、重量輕，貼片元件的體積和重量只有傳統(tǒng)插裝元件的1/10左右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。深圳標(biāo)準(zhǔn)SMT貼片工藝</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳標(biāo)準(zhǔn)SMT貼片工藝,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258666201172/1858767.png"></div><p style="text-indent:25px">我們需要明確一個問題：SMT貼片加工的費(fèi)用包含那幾個部分？開機(jī)費(fèi)、工程費(fèi)、鋼網(wǎng)費(fèi)，其余就是按照常規(guī)的點(diǎn)數(shù)算法核算出來的加工費(fèi)。很多SMT工廠都有較低消費(fèi)的限制在里面，這個限制是工廠正常的一次服務(wù)基本的費(fèi)用，低于這個費(fèi)用就屬于虧損狀態(tài)，賠本的買賣是沒人做的，低于成本價就可能拒絕接您這單。一般達(dá)不到較低消費(fèi)是按照較低消費(fèi)來收取的，超出的按照正常的點(diǎn)數(shù)來算。有做過SMT貼片加工的朋友都知道，目前業(yè)內(nèi)的常規(guī)報價都是按點(diǎn)算。特殊工藝要求的可能會更貴。杭州pcb貼片加工SMT基本工藝：錫膏印刷--> 零件貼裝-->回流焊接-->AOI光學(xué)檢測--> 維修--> 分板。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳標(biāo)準(zhǔn)SMT貼片工藝,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258632216797/5876714.png"></div><p style="text-indent:25px">SMT貼片加工焊接后的清洗指的是利用物理作用、化學(xué)反應(yīng)的方法去除SMT再流焊、波峰焊和手工焊后殘留在表面組裝板表面的助焊劑殘留物及貼片加工組裝工藝過程中造成的污染物、雜質(zhì)的工序污染物對表面組裝板的危害1、焊劑和焊音中添加的活化劑帶有少量西化物、酸或鹽，焊接后形成極性殘留物履蓋在焊點(diǎn)表面。當(dāng)電子產(chǎn)品加電時，極性殘留物的離子就會朝極性相反的導(dǎo)體遷移，嚴(yán)重時會引起短路。2、目前常用焊劑中的鹵化物、氯化物具有很強(qiáng)的活性和吸濕性，在湘濕的環(huán)境中對基板和焊點(diǎn)產(chǎn)生腐蝕作用，使基板的表面絕緣電阻下降并產(chǎn)生電遷移，嚴(yán)重時會導(dǎo)電，引起短路或斷路。</p><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，不只需要有經(jīng)過專業(yè)知識培訓(xùn)的有經(jīng)驗(yàn)的技術(shù)人員和通行的管理人員來協(xié)同進(jìn)行機(jī)器的操作，以此來保證SMT貼裝的高可靠性和直通率，焊接不良率，良好的高頻特性。減少了一個電磁和射頻信號干擾。易實(shí)現(xiàn)自動化，提高生產(chǎn)效率。一般管理規(guī)定SMT工廠生產(chǎn)車間的溫度在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)品的整體體積會減少40%~60%，重量減少60%~80%。所用設(shè)備為絲印機(jī)（絲網(wǎng)印刷機(jī)），位于SMT生產(chǎn)線的較前端。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳標(biāo)準(zhǔn)SMT貼片工藝,SMT貼片" src="https://tyunfile.71360.com/UploadFile/haomingdianzi/637330258582382813/5781319.png"></div><p style="text-indent:25px">SMT貼片加工過程需要注意的事項(xiàng)：1、SMT貼片技術(shù)員佩戴好檢驗(yàn)OK的靜電環(huán)，插件前檢查每個訂單的電子元件無錯/混料、破損、變形、劃傷等不良現(xiàn)象；2、電路板的插件板需要提前把電子物料準(zhǔn)備好，注意電容極性方向須正確無誤。3、SMT印刷作業(yè)完畢后進(jìn)行無漏插、反插、錯位等不良產(chǎn)品的檢查，將良好的上錫完成品流入下一工序。4、SMT貼片組裝作業(yè)前請配戴靜電環(huán),金屬片緊貼手腕皮膚并保持接地良好,雙手交替作業(yè)。5、USB/IF座子/屏蔽罩/高頻頭/網(wǎng)口端子等金屬元件,插件時須戴手指套作業(yè)。6、所插元器件位置、方向須正確無誤,元件平貼板面,架高元件必須插到K腳位置。7、如有發(fā)現(xiàn)物料與SOP以及BOM表上規(guī)格不一致時,須及時向班/組長報告。8、物料需輕拿輕放不可將經(jīng)過SMT前期工序的PCB板掉落而導(dǎo)致元件受損,晶振掉落不可使用。9、上下班前請將工作臺面整理干凈,并保持清潔。10、嚴(yán)格遵守作業(yè)區(qū)操作規(guī)則，首件檢測區(qū)、待檢區(qū)、不良區(qū)、維修區(qū)、少料區(qū)的產(chǎn)品嚴(yán)禁私自隨意擺放，上下班交接要注明未完工序。SMT貼片機(jī)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(xì)的識別定位等特點(diǎn)。杭州pcb貼片加工</p><p style="text-indent:25px">SMT貼片加工注意事項(xiàng)：電路板的插件板需要提前把電子物料準(zhǔn)備好，注意電容極性方向須正確無誤。深圳標(biāo)準(zhǔn)SMT貼片工藝</p><p style="text-indent:25px">在SMT貼片加工的日常工作中，我們經(jīng)常會遇到一些做電力電子、電源、工業(yè)控制、充電樁的產(chǎn)品。上面大多數(shù)都是DIP插件物料，而且很多的物料因?yàn)楦N片物料的耐溫性和加工要求不一致，就需要用到手工焊接，特別是常見的翼形引腳元件比較常見。一般情況下如果是不能機(jī)貼的話，會選擇用人工手焊的形式把之后剩余的幾個料焊接上去。那么翼形引腳的手工焊接方法您了解多少呢？一、逐個焊點(diǎn)焊接：1、用鑷子夾持器件，對準(zhǔn)方向使引腳與PCB焊盤對齊，居中貼放在相應(yīng)的焊盤上。2、選用圓錐形或鑿子形烙鐵頭，焊牢器件斜對角1~2個引腳。3、從引腳開始、順序逐個焊點(diǎn)焊接，同時加少許直徑0.5mm（或更細(xì)一些）的焊錫絲，將器件兩側(cè)或四周引腳全部焊牢。窄間距時，不容易控制焊錫絲的送入量，因此也可以涂助焊劑，然后用轉(zhuǎn)移法逐個焊點(diǎn)焊接。二、拖焊法：1、用鑷子夾持器件，對準(zhǔn)極性和方向，使引腳與焊盤對齊，居中貼放在相應(yīng)的焊盤上，用圓錐或鑿子形烙鐵頭先焊牢器件斜對角1~2個引腳。2、涂助焊劑。3、給烙鐵頭上錫。4、從引腳開始、順序向下緩慢勻速拖拉烙鐵，將器件兩側(cè)全部焊牢。深圳標(biāo)準(zhǔn)SMT貼片工藝</p><p style="text-indent:25px">中山市浩明電子科技有限公司專注技術(shù)創(chuàng)新和產(chǎn)品研發(fā)，發(fā)展規(guī)模團(tuán)隊(duì)不斷壯大。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)展平臺與成長空間，為客戶提供高質(zhì)的產(chǎn)品服務(wù)，深受員工與客戶好評。公司以誠信為本，業(yè)務(wù)領(lǐng)域涵蓋smt貼片，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡，我們本著對客戶負(fù)責(zé)，對員工負(fù)責(zé)，更是對公司發(fā)展負(fù)責(zé)的態(tài)度，爭取做到讓每位客戶滿意。公司力求給客戶提供全數(shù)良好服務(wù)，我們相信誠實(shí)正直、開拓進(jìn)取地為公司發(fā)展做正確的事情，將為公司和個人帶來共同的利益和進(jìn)步。經(jīng)過幾年的發(fā)展，已成為smt貼片，智能電子鎖，藍(lán)牙系列，網(wǎng)絡(luò)直播聲卡行業(yè)出名企業(yè)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2924741.html</p></div></div></div></div></div><div id="r7okvle" class="page-right twoColRt"><div id="d3m3kmv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="78cagm8" 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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