Kune SMT bhodhi, kunyanya yeBGA neIC yakanamirwa pane zvinodiwa conduction inofanira kudzika, iyo plug gomba convex concave plus kana minus 1 mil, haigone kuve negwara mupendero parata dzvuku, gomba rekutungamira iTibetan bead, kuti isangane. zvinodiwa nemutengi, kuitisa plug hole process ndeye multifarious, yakasarudzika kureba kuyerera, maitiro ekudzora akaoma, kazhinji mumhepo inopisa yekuyera uye girinhi mafuta kuramba kuyedza kuyedza;Mushure mekuporesa, kuputika kwemafuta uye mamwe matambudziko anoitika.Zvinoenderana nemamiriro chaiwo ekugadzira, akasiyana PCB plug hole maitiro akapfupikiswa, uye maitiro nemabhenefiti neakaipa zvinoenzaniswa nekutsanangurwa:
Cherechedza: Nheyo yekushanda yekupisa kwemhepo ndeyekushandisa mhepo inopisa kubvisa yakawandisa solder pamusoro uye gomba redhidhi redunhu bhodhi, uye iyo yakasara solder yakavharwa zvakaenzana padhi uye yakavhurika solder mutsara uye pamusoro pechisimbiso chekushongedza, inova imwe. yemaitiro epamusoro ekurapa kweakadhindwa redunhu board.
I. Plug hole process mushure mekupisa kwemhepo
Iyo inoyerera inoyerera: ndiro pamusoro inovharira welding →HAL→ plug gomba → kurapa.Non-plug hole process inogamuchirwa kugadzirwa.Mushure mekupisa kwemhepo, aluminium screen plate kana inki skrini inoshandiswa kupedzisa maburi epuragi enhare yese sezvinodiwa nevatengi.Plug hole inki inogona kuve inonzwisisika inki kana thermosetting inki, kuitira kuti ive nechokwadi chekuenderana kweyakanyorova firimu ruvara, plug hole inki inoshandiswa zvakanyanya neiyo ingi bhodhi.Iyi nzira inogona kuve nechokwadi chekuti mhepo inopisa inoyerera mushure meburi repaburi haidonhedze mafuta, asi zviri nyore kukonzera plug hole inki kusvibisa bhodhi pamusoro, isina kuenzana.Mutengi anowanzoita virtual welding kana achishandisaSMT muchinakukwira (kunyanya muBGA).Saka vatengi vazhinji havagamuchire nzira iyi.
II.Mhepo inopisa inoyera pamberi pe plug hole process
2.1 Graphic kuchinjisa kunoitwa mushure mepulagi gomba, kusimba uye kukuya kwealuminium sheet.
Iyi maitiro ekuita neCNC yekuchera muchina, kudhirowa kunze kubaya gomba aluminium sheet, yakagadzirwa nescreen, plug gomba, shuwa kuti plug gomba rakazara plug gomba, plug gomba ingi plug hole inki, inowanikwawo thermosetting inki, maitiro ayo anofanira kunge akaoma, resin shrinkage shanduko idiki, uye gomba madziro anosunga simba rakanaka.Kuyerera kwemaitiro kunotevera: pretreatment → plug gomba → grinding plate → graphic transfer → etching → plate surface resistance welding
Nenzira iyi inogona kuvimbisa kufambisa kwakatsetseka kwe plug gomba, kupisa kwemhepo kukwirisa kwaisazove neoiri, divi regomba rinoputika kubva pamatambudziko emhando seoiri, asi chinodiwa chehupfu hwemhangura inoraswa, ita kuti gomba iri madziro emhangura rikwane. chiyero chevatengi, saka iyo bhodhi yese yakakwira kudiwa kwemhangura plating, uye zvakare ine yakakwira chinodiwa pakuita kwemuchina wekukuya, kuve nechokwadi chekuti resin iri pamusoro pemhangura yakanyatso bvisa, senge yemhangura yakachena uye haina kusvibiswa. .Zvizhinji zvePCB zvinomera hazvina imwe-nguva thickening mhangura muitiro, uye kushanda kwemidziyo hakusi kusvika zvinodiwa, zvichiita kuti muitiro uyu haashandiswi PCB zvinomera.
2.2 Vhara welding yescreen inodhinda bhodhi kumusoro zvakananga mushure meplug gomba realuminium sheet
Iyi maitiro anoshandisa NUMERICAL control yekuchera muchina, dhiraivha pepa realuminium kuvhara gomba, rakagadzirwa mushanduro yescreen, rakaiswa pachiratidziri chedhinda muchina plug gomba, mushure mekupedzwa kwe plug gomba yekupaka haipfuure maminetsi makumi matatu, ine 36T skrini. skrini yakananga skrini yekudhinda bhodhi pamusoro pekudzivirira welding, maitiro ekuita ndeokuti: pretreatment - plug gomba - kudhinda skrini - pre baking - exposure - kusimudzira - kurapa
Nekuita uku kunogona kuve nechokwadi chekuti conduction gomba yekuvhara mafuta yakanaka, plug gomba furati, yakanyorova firimu ruvara inopindirana, inopisa mhepo inoyerera inogona kuve nechokwadi chekuti gomba rekuitisa harisi tin, mabheji emarata haana kuvanzwa mugomba, asi zviri nyore kukonzera. iyo ingi padhi mugomba mushure mekurapa, zvichiita kuti murombo solderability;Mushure mekupisa kwemhepo, kumucheto kwe-buri-gomba mabhubhu uye anodonha mafuta.Zvakaoma kushandisa maitiro aya pakugadzirisa kugadzirwa, uye zvinodikanwa kuti mainjiniya ekugadzirisa atore maitiro akakosha uye ma paramita kuti ave nechokwadi chemhando yegomba replug.
2.3 Aluminium plug gomba, kusimudzira, precuring, kugaya ndiro pamusoro welding.
Iine CNC yekuchera muchina, kuchera iyo aluminium sheet inodiwa plug gomba, yakagadzirwa kuita skrini, yakaiswa pane yekuchinja skrini yekudhinda muchina plug hole, plug gomba rinofanira kunge rakazara, mativi ese arikubuda ari nani, uyezve mushure mekurapa, kukuya ndiro pamusoro. kurapwa, maitiro ndee: pretreatment - plug gomba pre-drying - kuvandudza - pre-kurapa - pamusoro welding
Sezvo plug gomba kurapa mukuita uku kunogona kuve nechokwadi kuti mafuta haadonhe kana kuputika nepaburi mushure meHAL, asi marata akavigwa mugomba uye tin paburi rekupfuura mushure meHAL haigone kugadziriswa zvachose, saka vatengi vazhinji havazvigamuchire.
2.4 Block welding uye plug gomba zvinopedzwa panguva imwe chete.
Iyi nzira inoshandisa 36T (43T) skrini, yakaiswa pachiratidziro chekudhinda muchina, kushandiswa kwepedhi kana chipikiri mubhedha, mukupedzwa kwebhodhi panguva imwe chete, iyo yese kuburikidza negomba plug, maitiro ndeiyi: pretreatment - kudhinda skrini - pre - drying - exposure - development - kurapa.
Iyo nguva yekuita ipfupi, yakakwira midziyo yekushandisa, inogona kuvimbisa mushure megomba kunze kwemafuta, mhepo inopisa yekuisa dhizaini gomba harisi patin, asi nekuda kwekushandisa screen printing kuvhara gomba, mugomba ndangariro ine nhamba huru yemhepo, kana kurapa, inflation yemhepo, kupaza kuburikidza nekudzivirira welding membrane, ine maburi, isina kuenzana, inopisa mhepo inoyera inotungamira gomba ishoma retin.
Nguva yekutumira: Nov-16-2021