SMT工藝(yi)(yi)主要(yao)(yao)包括錫(xi)(xi)(xi)膏(gao)(gao)印刷(shua)(shua)(shua)、貼片、回(hui)流(liu)(liu)(liu)焊等(deng)環(huan)節(jie)，每個(ge)環(huan)節(jie)都(dou)對(dui)終產(chan)品的(de)(de)(de)(de)(de)(de)(de)質(zhi)量和(he)(he)(he)性(xing)(xing)(xing)能產(chan)生重(zhong)(zhong)要(yao)(yao)影響。錫(xi)(xi)(xi)膏(gao)(gao)印刷(shua)(shua)(shua)是(shi)SMT工藝(yi)(yi)的(de)(de)(de)(de)(de)(de)(de)首(shou)步，負責將(jiang)(jiang)錫(xi)(xi)(xi)膏(gao)(gao)精(jing)確地印刷(shua)(shua)(shua)到(dao)(dao)PCB的(de)(de)(de)(de)(de)(de)(de)焊盤(pan)上。錫(xi)(xi)(xi)膏(gao)(gao)印刷(shua)(shua)(shua)的(de)(de)(de)(de)(de)(de)(de)質(zhi)量直接影響到(dao)(dao)后續貼片和(he)(he)(he)回(hui)流(liu)(liu)(liu)焊的(de)(de)(de)(de)(de)(de)(de)效(xiao)果(guo)(guo)，因(yin)此需(xu)要(yao)(yao)嚴格控(kong)(kong)制(zhi)錫(xi)(xi)(xi)膏(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)質(zhi)量、印刷(shua)(shua)(shua)厚度(du)、精(jing)度(du)等(deng)參(can)數(shu)。在(zai)錫(xi)(xi)(xi)膏(gao)(gao)印刷(shua)(shua)(shua)過(guo)程(cheng)中，應選擇(ze)合(he)適的(de)(de)(de)(de)(de)(de)(de)印刷(shua)(shua)(shua)設(she)備、鋼(gang)網和(he)(he)(he)刮刀，以(yi)保證印刷(shua)(shua)(shua)效(xiao)果(guo)(guo)的(de)(de)(de)(de)(de)(de)(de)穩定(ding)性(xing)(xing)(xing)和(he)(he)(he)可靠性(xing)(xing)(xing)。貼片是(shi)SMT工藝(yi)(yi)中將(jiang)(jiang)元(yuan)器(qi)(qi)件(jian)貼裝到(dao)(dao)PCB上的(de)(de)(de)(de)(de)(de)(de)過(guo)程(cheng)。貼片過(guo)程(cheng)中需(xu)要(yao)(yao)注意元(yuan)器(qi)(qi)件(jian)的(de)(de)(de)(de)(de)(de)(de)取料、定(ding)位和(he)(he)(he)貼裝等(deng)環(huan)節(jie)，確保元(yuan)器(qi)(qi)件(jian)正(zheng)確地貼裝到(dao)(dao)預定(ding)位置。貼片機的(de)(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)能、精(jing)度(du)和(he)(he)(he)穩定(ding)性(xing)(xing)(xing)對(dui)貼片效(xiao)果(guo)(guo)有(you)很(hen)大影響，因(yin)此選擇(ze)合(he)適的(de)(de)(de)(de)(de)(de)(de)貼片機和(he)(he)(he)優化貼片參(can)數(shu)至關重(zhong)(zhong)要(yao)(yao)。回(hui)流(liu)(liu)(liu)焊是(shi)SMT工藝(yi)(yi)中將(jiang)(jiang)錫(xi)(xi)(xi)膏(gao)(gao)熔化并使元(yuan)器(qi)(qi)件(jian)與(yu)PCB焊盤(pan)連接的(de)(de)(de)(de)(de)(de)(de)過(guo)程(cheng)。回(hui)流(liu)(liu)(liu)焊過(guo)程(cheng)中，需(xu)要(yao)(yao)控(kong)(kong)制(zhi)加熱(re)速率(lv)(lv)、溫度(du)曲線和(he)(he)(he)冷卻(que)速率(lv)(lv)等(deng)參(can)數(shu)，以(yi)保證焊點的(de)(de)(de)(de)(de)(de)(de)質(zhi)量和(he)(he)(he)可靠性(xing)(xing)(xing)。回(hui)流(liu)(liu)(liu)焊設(she)備的(de)(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)能、穩定(ding)性(xing)(xing)(xing)和(he)(he)(he)溫度(du)控(kong)(kong)制(zhi)能力對(dui)回(hui)流(liu)(liu)(liu)焊效(xiao)果(guo)(guo)至關重(zhong)(zhong)要(yao)(yao)。在(zai)實際操(cao)作中，應根據元(yuan)器(qi)(qi)件(jian)和(he)(he)(he)PCB的(de)(de)(de)(de)(de)(de)(de)特性(xing)(xing)(xing)，選擇(ze)合(he)適的(de)(de)(de)(de)(de)(de)(de)回(hui)流(liu)(liu)(liu)焊設(she)備和(he)(he)(he)工藝(yi)(yi)參(can)數(shu)。什么(me)是(shi)SMT?SMT的(de)(de)(de)(de)(de)(de)(de)優點是(shi)哪(na)些?東莞SMT貼片廠家

SMT貼(tie)(tie)片指(zhi)的是(shi)在(zai)(zai)PCB基礎上(shang)進(jin)行加(jia)工(gong)(gong)的系列工(gong)(gong)藝(yi)流程的簡(jian)稱(cheng)。PCB（PrintedCircuitBoard)為印(yin)刷(shua)電(dian)(dian)(dian)(dian)路(lu)板(ban)。SMT是(shi)表面(mian)(mian)組(zu)裝(zhuang)(zhuang)(zhuang)技(ji)術(shu)(shu)(shu)（表面(mian)(mian)貼(tie)(tie)裝(zhuang)(zhuang)(zhuang)技(ji)術(shu)(shu)(shu)）（SurfaceMountedTechnology的縮寫），是(shi)電(dian)(dian)(dian)(dian)子組(zu)裝(zhuang)(zhuang)(zhuang)行業(ye)(ye)里當下(xia)流行的一種技(ji)術(shu)(shu)(shu)和工(gong)(gong)藝(yi)。電(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)路(lu)表面(mian)(mian)組(zu)裝(zhuang)(zhuang)(zhuang)技(ji)術(shu)(shu)(shu)（SurfaceMountTechnology，SMT），稱(cheng)為表面(mian)(mian)貼(tie)(tie)裝(zhuang)(zhuang)(zhuang)或表面(mian)(mian)安裝(zhuang)(zhuang)(zhuang)技(ji)術(shu)(shu)(shu)。它是(shi)一種將無引腳或短引線(xian)表面(mian)(mian)組(zu)裝(zhuang)(zhuang)(zhuang)元(yuan)器(qi)(qi)(qi)件（簡(jian)稱(cheng)SMC/SMD，中文(wen)稱(cheng)片狀(zhuang)元(yuan)器(qi)(qi)(qi)件）安裝(zhuang)(zhuang)(zhuang)在(zai)(zai)印(yin)制電(dian)(dian)(dian)(dian)路(lu)板(ban)（PrintedCircuitBoard，PCB)的表面(mian)(mian)或其它基板(ban)的表面(mian)(mian)上(shang)，通過再(zai)流焊或浸焊等方法(fa)加(jia)以焊接組(zu)裝(zhuang)(zhuang)(zhuang)的電(dian)(dian)(dian)(dian)路(lu)裝(zhuang)(zhuang)(zhuang)連技(ji)術(shu)(shu)(shu)。在(zai)(zai)通常情況下(xia)我們用的電(dian)(dian)(dian)(dian)子產(chan)品都是(shi)由pcb加(jia)上(shang)各(ge)(ge)種電(dian)(dian)(dian)(dian)容，電(dian)(dian)(dian)(dian)阻(zu)等電(dian)(dian)(dian)(dian)子元(yuan)器(qi)(qi)(qi)件按設計(ji)的電(dian)(dian)(dian)(dian)路(lu)圖設計(ji)而成的,所以形(xing)形(xing)色(se)的電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)需要各(ge)(ge)種不(bu)同的smt貼(tie)(tie)片加(jia)工(gong)(gong)工(gong)(gong)藝(yi)來加(jia)工(gong)(gong)。莆田(tian)SMT貼(tie)(tie)片專業(ye)(ye)加(jia)工(gong)(gong)廠SMT貼(tie)(tie)片機拋料問題分析及處理。

SMT貼(tie)(tie)(tie)片(pian)(pian)的(de)(de)(de)(de)工藝流(liu)程構(gou)成要(yao)素：絲印(yin)(yin)，檢(jian)(jian)(jian)驗(yan)，貼(tie)(tie)(tie)片(pian)(pian)，回(hui)流(liu)焊(han)(han)(han)接(jie)(jie)，清洗(xi)，檢(jian)(jian)(jian)驗(yan)，維修。1、絲印(yin)(yin)：將助焊(han)(han)(han)膏(gao)或(huo)貼(tie)(tie)(tie)片(pian)(pian)膠印(yin)(yin)到線(xian)路板(ban)的(de)(de)(de)(de)焊(han)(han)(han)盤(pan)上，為器件(jian)的(de)(de)(de)(de)電(dian)焊(han)(han)(han)焊(han)(han)(han)接(jie)(jie)作(zuo)(zuo)(zuo)好準備(bei)(bei)。應(ying)用(yong)(yong)(yong)的(de)(de)(de)(de)機械設(she)(she)(she)備(bei)(bei)位于SMT生產(chan)(chan)(chan)流(liu)水(shui)線(xian)前端的(de)(de)(de)(de)(鋼網(wang)印(yin)(yin)刷(shua)設(she)(she)(she)備(bei)(bei))。2、檢(jian)(jian)(jian)驗(yan)：檢(jian)(jian)(jian)驗(yan)印(yin)(yin)刷(shua)設(she)(she)(she)備(bei)(bei)上錫(xi)膏(gao)印(yin)(yin)刷(shua)的(de)(de)(de)(de)品質(zhi)(zhi)，檢(jian)(jian)(jian)查PCB板(ban)上印(yin)(yin)刷(shua)的(de)(de)(de)(de)錫(xi)量及助焊(han)(han)(han)膏(gao)所(suo)(suo)在(zai)(zai)(zai)(zai)的(de)(de)(de)(de)位置(zhi)，檢(jian)(jian)(jian)查錫(xi)膏(gao)印(yin)(yin)刷(shua)的(de)(de)(de)(de)平面度及厚度，檢(jian)(jian)(jian)查錫(xi)膏(gao)印(yin)(yin)刷(shua)是(shi)否存在(zai)(zai)(zai)(zai)偏移，印(yin)(yin)刷(shua)設(she)(she)(she)備(bei)(bei)上助焊(han)(han)(han)膏(gao)鋼網(wang)脫模是(shi)否存在(zai)(zai)(zai)(zai)拉尖狀況等，所(suo)(suo)使(shi)用(yong)(yong)(yong)的(de)(de)(de)(de)設(she)(she)(she)備(bei)(bei)是(shi)(SPI)錫(xi)膏(gao)測厚儀。3、貼(tie)(tie)(tie)片(pian)(pian)：其作(zuo)(zuo)(zuo)用(yong)(yong)(yong)是(shi)把(ba)表層安裝部件(jian)裝配(pei)到PCB的(de)(de)(de)(de)固定(ding)(ding)點(dian)。所(suo)(suo)使(shi)用(yong)(yong)(yong)的(de)(de)(de)(de)設(she)(she)(she)備(bei)(bei)是(shi)SMT生產(chan)(chan)(chan)流(liu)水(shui)線(xian)絲網(wang)印(yin)(yin)刷(shua)機后(hou)邊的(de)(de)(de)(de)一臺smt貼(tie)(tie)(tie)片(pian)(pian)機。4、回(hui)流(liu)焊(han)(han)(han)接(jie)(jie)：其作(zuo)(zuo)(zuo)用(yong)(yong)(yong)就是(shi)熔化焊(han)(han)(han)錫(xi)膏(gao)，使(shi)表層安裝部件(jian)與PCB板(ban)緊密(mi)的(de)(de)(de)(de)黏合在(zai)(zai)(zai)(zai)一塊。應(ying)用(yong)(yong)(yong)的(de)(de)(de)(de)機械設(she)(she)(she)備(bei)(bei)為SMT生產(chan)(chan)(chan)流(liu)水(shui)線(xian)，smt貼(tie)(tie)(tie)片(pian)(pian)機后(hou)邊的(de)(de)(de)(de)回(hui)流(liu)焊(han)(han)(han)爐(lu)。5、清洗(xi)：其作(zuo)(zuo)(zuo)用(yong)(yong)(yong)就是(shi)清洗(xi)組裝好的(de)(de)(de)(de)PCB板(ban)上有害(hai)物質(zhi)(zhi)電(dian)焊(han)(han)(han)焊(han)(han)(han)接(jie)(jie)殘余(yu)，松香助焊(han)(han)(han)劑等。應(ying)用(yong)(yong)(yong)的(de)(de)(de)(de)機械設(she)(she)(she)備(bei)(bei)為清洗(xi)設(she)(she)(she)備(bei)(bei)，具置(zhi)可不固定(ding)(ding)，可在(zai)(zai)(zai)(zai)線(xian)或(huo)不在(zai)(zai)(zai)(zai)線(xian)。6、檢(jian)(jian)(jian)驗(yan)：其作(zuo)(zuo)(zuo)用(yong)(yong)(yong)是(shi)檢(jian)(jian)(jian)驗(yan)組裝PCB板(ban)的(de)(de)(de)(de)焊(han)(han)(han)接(jie)(jie)質(zhi)(zhi)量和安裝品質(zhi)(zhi)。應(ying)用(yong)(yong)(yong)的(de)(de)(de)(de)機械設(she)(she)(she)備(bei)(bei)包含(han)高倍放大鏡、光學(xue)顯微鏡、在(zai)(zai)(zai)(zai)線(xian)測試(shi)(ICT)、自動光學(xue)檢(jian)(jian)(jian)測(AOI)。可以根據檢(jian)(jian)(jian)測的(de)(de)(de)(de)需要(yao)，配(pei)置(zhi)生產(chan)(chan)(chan)流(liu)水(shui)線(xian)適當所(suo)(suo)在(zai)(zai)(zai)(zai)的(de)(de)(de)(de)位置(zhi)。7、維修：其作(zuo)(zuo)(zuo)用(yong)(yong)(yong)就是(shi)修補(bu)檢(jian)(jian)(jian)驗(yan)出現故(gu)障的(de)(de)(de)(de)PCB板(ban)。

SMT貼(tie)片(pian)加工(gong)(gong)常(chang)見品(pin)質(zhi)問(wen)題包括漏(lou)件(jian)、側件(jian)、翻(fan)件(jian)、元件(jian)偏位、元件(jian)損耗等。接下來為大家介紹SMT貼(tie)片(pian)加工(gong)(gong)常(chang)見品(pin)質(zhi)問(wen)題及解決方法。SMT貼(tie)片(pian)加工(gong)(gong)漏(lou)件(jian)常(chang)見原因：1.部(bu)件(jian)吸嘴(zui)(zui)氣(qi)道堵塞，吸嘴(zui)(zui)損壞，吸嘴(zui)(zui)高度不正確；2.SMT設備(bei)的(de)真空氣(qi)路(lu)被打破并堵塞；3.電路(lu)板庫存(cun)不足，變形嚴重；4.線路(lu)板的(de)焊盤上沒有焊膏(gao)或(huo)焊膏(gao)過少；5.零件(jian)質(zhi)量問(wen)題，同(tong)一(yi)品(pin)種厚(hou)度不一(yi)致；6.在(zai)(zai)SMT加工(gong)(gong)中使(shi)用的(de)SMT調用程(cheng)(cheng)序存(cun)在(zai)(zai)誤差和遺漏(lou)，或(huo)者在(zai)(zai)編程(cheng)(cheng)中組件(jian)厚(hou)度參(can)數(shu)的(de)選擇存(cun)在(zai)(zai)誤差；7.人為因素(su)在(zai)(zai)不經意間被觸動。如何(he)在(zai)(zai)制造過程(cheng)(cheng)后(hou)進(jin)行SMT貼(tie)片(pian)?

SMT貼(tie)(tie)片(pian)(pian)(pian)機(ji)在(zai)線(xian)編(bian)(bian)(bian)程(cheng)(cheng)(cheng)(cheng)，對(dui)于(yu)已經(jing)完(wan)成(cheng)離線(xian)編(bian)(bian)(bian)程(cheng)(cheng)(cheng)(cheng)的產(chan)(chan)品(pin)(pin)，可直接調出產(chan)(chan)品(pin)(pin)程(cheng)(cheng)(cheng)(cheng)序(xu)，對(dui)于(yu)沒有(you)CAD坐(zuo)標文件(jian)(jian)的產(chan)(chan)品(pin)(pin)，可采用在(zai)線(xian)編(bian)(bian)(bian)程(cheng)(cheng)(cheng)(cheng)。在(zai)線(xian)編(bian)(bian)(bian)程(cheng)(cheng)(cheng)(cheng)是在(zai)貼(tie)(tie)片(pian)(pian)(pian)機(ji)上(shang)(shang)人(ren)(ren)工輸(shu)入(ru)拾(shi)片(pian)(pian)(pian)和貼(tie)(tie)片(pian)(pian)(pian)程(cheng)(cheng)(cheng)(cheng)序(xu)的過(guo)程(cheng)(cheng)(cheng)(cheng)。拾(shi)片(pian)(pian)(pian)程(cheng)(cheng)(cheng)(cheng)序(xu)完(wan)全由人(ren)(ren)工編(bian)(bian)(bian)制并輸(shu)入(ru)，貼(tie)(tie)片(pian)(pian)(pian)程(cheng)(cheng)(cheng)(cheng)序(xu)是通過(guo)教學(xue)攝像機(ji)對(dui)PCB上(shang)(shang)每個貼(tie)(tie)片(pian)(pian)(pian)元(yuan)器(qi)(qi)件(jian)(jian)貼(tie)(tie)裝(zhuang)位(wei)置的精確(que)(que)攝像，自動計算元(yuan)器(qi)(qi)件(jian)(jian)中(zhong)心坐(zuo)標（貼(tie)(tie)裝(zhuang)位(wei)置），并記錄(lu)到(dao)貼(tie)(tie)片(pian)(pian)(pian)程(cheng)(cheng)(cheng)(cheng)序(xu)表(biao)中(zhong)，然后(hou)(hou)通過(guo)人(ren)(ren)工優化而成(cheng)。安(an)(an)(an)裝(zhuang)SMT貼(tie)(tie)片(pian)(pian)(pian)機(ji)供(gong)料(liao)器(qi)(qi)，1、按照離線(xian)編(bian)(bian)(bian)程(cheng)(cheng)(cheng)(cheng)或在(zai)線(xian)編(bian)(bian)(bian)程(cheng)(cheng)(cheng)(cheng)編(bian)(bian)(bian)制的拾(shi)片(pian)(pian)(pian)程(cheng)(cheng)(cheng)(cheng)序(xu)表(biao)，將各種(zhong)元(yuan)器(qi)(qi)件(jian)(jian)安(an)(an)(an)裝(zhuang)到(dao)貼(tie)(tie)片(pian)(pian)(pian)機(ji)的料(liao)站上(shang)(shang)。2、安(an)(an)(an)裝(zhuang)供(gong)料(liao)器(qi)(qi)時必須(xu)按照要求安(an)(an)(an)裝(zhuang)到(dao)位(wei)。3、安(an)(an)(an)裝(zhuang)完(wan)畢，必須(xu)由檢(jian)驗人(ren)(ren)員檢(jian)查，確(que)(que)保正確(que)(que)無誤后(hou)(hou)才能進行試貼(tie)(tie)和生(sheng)產(chan)(chan)。smt貼(tie)(tie)片(pian)(pian)(pian)工藝流程(cheng)(cheng)(cheng)(cheng)圖是如何的？石家莊電路板SMT貼(tie)(tie)片(pian)(pian)(pian)專(zhuan)業加(jia)工廠

SMT貼(tie)片機詳(xiang)細(xi)基本操作(zuo)步(bu)驟流(liu)程介紹。東莞SMT貼(tie)片廠家(jia)

SMT貼(tie)(tie)(tie)片(pian)(pian)加(jia)工側件(jian)(jian)、翻件(jian)(jian)常見原(yuan)(yuan)因(yin)：1.貼(tie)(tie)(tie)片(pian)(pian)機安裝(zhuang)(zhuang)(zhuang)頭(tou)吸嘴高(gao)(gao)(gao)度(du)不(bu)(bu)正(zheng)確(que)；2.貼(tie)(tie)(tie)片(pian)(pian)機安裝(zhuang)(zhuang)(zhuang)頭(tou)劃傷高(gao)(gao)(gao)度(du)不(bu)(bu)對；3.組(zu)(zu)件(jian)(jian)編(bian)織的(de)(de)裝(zhuang)(zhuang)(zhuang)藥(yao)孔尺寸(cun)過大(da)，由于(yu)振動導(dao)致組(zu)(zu)件(jian)(jian)翻轉；4.在編(bian)織時，塊狀材料的(de)(de)方向(xiang)是相反的(de)(de)。SMT貼(tie)(tie)(tie)片(pian)(pian)加(jia)工元(yuan)件(jian)(jian)偏(pian)位(wei)常見原(yuan)(yuan)因(yin)：1.當SMT被編(bian)程時，組(zu)(zu)件(jian)(jian)的(de)(de)X-Y軸(zhou)坐(zuo)標是不(bu)(bu)正(zheng)確(que)的(de)(de)；2.貼(tie)(tie)(tie)片(pian)(pian)式吸嘴的(de)(de)存在使吸嘴不(bu)(bu)穩定(ding)。SMT貼(tie)(tie)(tie)片(pian)(pian)加(jia)工元(yuan)件(jian)(jian)損耗常見原(yuan)(yuan)因(yin)：1.定(ding)位(wei)銷過高(gao)(gao)(gao)，導(dao)致電(dian)路板位(wei)置過高(gao)(gao)(gao)，安裝(zhuang)(zhuang)(zhuang)時擠壓元(yuan)件(jian)(jian)；2.當SMT被編(bian)程時，組(zu)(zu)件(jian)(jian)的(de)(de)z軸(zhou)坐(zuo)標是不(bu)(bu)正(zheng)確(que)的(de)(de)；3.SMT貼(tie)(tie)(tie)片(pian)(pian)機安裝(zhuang)(zhuang)(zhuang)頭(tou)吸彈簧(huang)卡住。東莞SMT貼(tie)(tie)(tie)片(pian)(pian)廠家

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