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1、畢業(yè)設(shè)計(jì)論文作者王磊學(xué)號(hào)系部計(jì)算機(jī)科學(xué)系專業(yè)SMT題目波峰焊接及其缺陷分析指導(dǎo)教師評(píng)閱教師完成時(shí)間：畢業(yè)設(shè)計(jì)(論文)中文摘要22題目：波峰焊接及其缺陷分析摘要：波峰焊是指將熔化的軟釬焊料（鉛錫合金），經(jīng)電動(dòng)泵或電磁泵噴流成設(shè)計(jì)要求的焊料波峰，亦可通過(guò)向焊料池注入氮?dú)鈦?lái)形成，使預(yù)先裝有元器件的印制板通過(guò)焊料波峰，實(shí)現(xiàn)元器件焊端或引腳與印制板焊盤之間機(jī)械與電氣連接的軟釬焊，也可稱為群焊或流動(dòng)焊。這種焊接方法主要用于傳統(tǒng)通孔插裝工藝，以及表面組裝與通孔插裝元器件的混裝工藝，適合波峰焊的表面貼裝元器件有矩形和圓柱形片式元件、SOT以及較小的SOP器件等
2、。本文通過(guò)介紹波峰焊的定義、工藝方式、過(guò)程分析、缺陷分析等，提出波峰焊接的各種缺陷以及解決的各種方法。關(guān)鍵詞：波峰焊缺陷分析22畢業(yè)設(shè)計(jì)(論文)外文摘要Title:WaveSolderingIntroductionandItsDefectAnalysisAbstract:Wavesolderingreferstothesoftmeltsolderingmaterial(leadtinalloy)，theelectricpumporelectromagneticpumpsprayflowintothedesignrequirementssolde
3、r，italsocanthroughpeakstoinjectnitrogentoformsolderspool，withcomponentsinadvancebythewave，PCBsolderingweldingsideorofcomponentswithpinsPCBpadofmechanicalandelectricalconnectionbetweenthesoftbrazing，canalsobecalledgroupofweldingorflowwelding.Thiskindofweldingmethodismainlyuse
4、dintraditionalthrough-holecartridgeprocess，aswellassurfaceassemblyandthrough-holecartridgecomponentsfordualwavesolderingprocess，SMTcomponentsarerectangularandcylindricalelectroniccomponent，SOTandsmallerSOPdevices，etc.Thispaperintroducesthedefinition，wavesolderingprocessmetho
5、d，processanalysis，defectanalysisintheoperatingprocessandputsforwardthemethodsofsolderingdefectandsolvedallkindsofthesolderingdefects.Keywords:WaveSolderingDefectsAnalysis22目錄畢業(yè)設(shè)計(jì)（論文）中文摘要···········································1畢業(yè)設(shè)計(jì)（論文）外文摘要·································
6、··········21引言······························································42波峰焊工藝························································42.1波峰焊的定義················································42.2波峰焊的種類················································52.3波峰焊接原理··········
7、······································63波峰焊組成及設(shè)備簡(jiǎn)介··············································83.1波峰焊機(jī)的組成··············································83.2波峰焊設(shè)備簡(jiǎn)介··············································94波峰焊流程及作用·················································105波峰焊
8、中助焊劑的工藝方式·········································12226波峰焊接工藝參數(shù)設(shè)置及溫度曲線解析···
