1. SMT Patch Processing Factory inogadzira zvinangwa zvemhando
Chigamba cheSMT chinoda bhodhi redunhu rakadhindwa kuburikidza nekudhinda welded paste uye zvinonamirwa zvikamu, uye pakupedzisira mwero wekukodzera kwebhodhi regungano repamusoro kubva muvira re-welding rinosvika kana pedyo ne100%. Zero -defective re-welding zuva, uye inodawo ese majoini ekutengesa kuti awane imwe mechanical simba.
Zvigadzirwa zvakadaro chete zvinogona kuwana yakakwirira-yemhando uye yakakwirira kuvimbika.
Chinangwa chehutano chinoyerwa. Parizvino, yakanakisa pasi rose inopihwa pasirese, mwero wekuremara kweSMT unogona kudzorwa kusvika pasi pekuenzana ne10ppm (kureva 10×106), chinova chinangwa chinotevedzwa nechero yega SMT processing plant.
Kazhinji, zvibodzwa zvichangoburwa, zvibodzwa zvepakati-refu, uye zvibodzwa zvenguva refu zvinogona kuumbwa zvinoenderana nekuoma kwekugadzira zvigadzirwa, mamiriro emidziyo uye mazinga ekambani.
2. Nzira yekugadzira
① Gadzirira magwaro akajairwa ebhizinesi, anosanganisira DFM bhizinesi masisitimu, general tekinoroji, mazinga ekuongorora, kuongorora uye kuongorora masisitimu.
② Kuburikidza nekutonga kwakarongeka uye kuenderera kwekutarisa uye kutonga, mhando yepamusoro yezvigadzirwa zveSMT inowanikwa, uye kugona kwekugadzira SMT uye kugona kunovandudzwa.
③ Shandisa hurongwa hwese hwekutonga. SMT Chigadzirwa Dhizaini Imwe Kutenga Kudzora Imwe Yekugadzira Maitiro Imwe Yemhando Yekuongorora Imwe Drip File Management
Kudzivirirwa kwechigadzirwa sevhisi imwe inopa ongororo yedata yekudzidziswa kwevashandi.
SMT chigadzirwa dhizaini uye kutonga kwekutenga hazvizounzwa nhasi.
Zviri mukati memaitiro ekugadzira zvinounzwa pazasi.
3. Kugadzirisa maitiro ekugadzira
Maitiro ekugadzira anobata zvakananga kunaka kwechigadzirwa, saka inofanirwa kudzorwa nezvinhu zvese senge maitiro paramita, vashandi, kuseta imwe neimwe, zvinhu, エ, yekutarisa uye yekuyedza nzira, uye hunhu hwemamiriro ekunze, kuitira kuti ive pasi pekutonga.
Mamiriro ekutonga ndeaya anotevera:
① Dhizaini dhizaini dhizaini, musangano, masampuli, kurongedza zvinodiwa, nezvimwe.
② Gadzira zvinyorwa zvemaitiro echigadzirwa kana mabhuku ekutungamira mashandisirwo, semakadhi ekugadzirisa, mashandisirwo ekushandisa, ekuongorora uye mabhuku ekutungamira ebvunzo.
③ Midziyo yekugadzira, matombo ebasa, kadhi, mold, axis, nezvimwe zvinogara zvichikodzera uye zvinoshanda.
④ Gadzirisa uye shandisa yakakodzera kuongorora uye kuyerwa zvishandiso kudzora zvinhu izvi mukati mechikamu chezvakatarwa kana zvinotenderwa.
⑤ Pane nzvimbo yakajeka yekutonga kwehutano. Iwo akakosha maitirwo eSMT ndeye welding paste kudhinda, chigamba, re-welding uye wave welding tembiricha yekudzora tembiricha.
Zvinodiwa zvemhando yekudzora mapoinzi (mhando yekudzora mapoinzi) ndeiyi: emhando yekudzora mapoinzi logo ipapo, yakamisikidzwa yemhando yekudzora poindi mafaira, kudzora data.
Iyo rekodhi ndeyechokwadi, panguva yakakodzera, uye kumuchenesa, ongorora data rekutonga, uye gara uchiongorora PDCA uye inoteedzerwa testability.
Mukugadzirwa kweSMT, manejimendi akagadziriswa anozogadziriswa welding, chigamba glue, uye kurasikirwa kwechikamu seimwe yezvinyorwa zvinodzora zvirimo muGuanjian process.
Nyaya
Kutarisira Kwemhando Yekutarisira uye Kudzora kweE Electronics Factory
1. Kupinza uye kutonga kwemhando itsva
1. Ronga pre-kugadzirwa kushevedzwa kwemisangano isati yagadzirwa sedhipatimendi rekugadzira, dhipatimendi remhando, maitiro uye mamwe madhipatimendi ane hukama, kunyanya kutsanangura maitiro ekugadzirwa kwerudzi rwemichina yekugadzira uye kunaka kwemhando yechiteshi chimwe nechimwe;
2. Munguva yekugadzira maitiro kana vashandi veinjiniya vakaronga mutsara wekuedza kugadzira maitiro, madhipatimendi anofanirwa kuve nebasa remainjiniya (maitirwo) ekutevera kutevera kutarisana nekukanganisa muyedzo yekugadzira maitiro uye rekodhi;
3. Bazi reHutano rinofanira kuita mhando yezvikamu zvakabatwa nemaoko uye maitiro akasiyana-siyana uye bvunzo dzekushanda pamhando yemichina yekuedza, uye kuzadza mushumo wekuedza unoenderana.
2. ESD kutonga
1. Kugadziridza nharaunda zvinodiwa: warehouse, zvikamu, uye post-welding workshops zvinosangana neESD control zvinodiwa, kuisa anti-static zvinhu pasi, chikuva chekugadzirisa chakaiswa, uye iyo impedance yepasi ndeye 104-1011Ω, uye electrostatic grounding buckle. (1MΩ ± 10%) yakabatana;
2. Zvido zvevashandi: Kupfeka zvipfeko zveanti-static, shangu, neheti zvinofanirwa kupfekwa mumusangano. Paunosangana nechigadzirwa, unofanirwa kupfeka tambo static ring;
3. Shandisa mabhegi ane furo uye mabubble emhepo kumasherufu erotor, kurongedza, uye mabhuru emhepo, izvo zvinoda kusangana nezvinodiwa zveESD. Surface impedance ndeye <1010Ω;
4. The turntable frame inoda cheni yekunze kuti ibudirire pasi;
5. Midziyo yekudonha kwemagetsi ndeye <0.5V, iyo impedance yepasi ndeye <6Ω, uye iyo inogadziriswa iron impedance ndeye <20Ω. Chigadzirwa chacho chinoda kuongorora mutsara wepasi wakazvimirira.
3. MSD kutonga
1. BGA.IC. Tube tsoka dzekurongedza zvinhu zviri nyore kutambura pasi pe-non-vacuum (nitrogen) yekurongedza mamiriro. Apo SMT inodzoka, mvura inopisa uye inoputika. Welding haina kujairika.
2. BGA kudzora tsanangudzo
(1) BGA, iyo isiri kuburitsa vacuum kurongedza, inofanira kuchengetwa munzvimbo ine tembiricha isingasviki 30 ° C uye hunyoro husingasviki 70%. Nguva yekushandiswa igore rimwe;
(2) Iyo BGA yakavhurwa muvacuum packaging inofanira kuratidza nguva yekuisa chisimbiso. Iyo BGA iyo isina kutangwa inochengetwa mune hunyoro -proof cabinet.
(3) Kana iyo BGA yakazarurwa isingawanikwe kushandisa kana chiyero, inofanira kuchengetwa muunyoro-uchapupu bhokisi (mamiriro ≤25 ° C, 65% RH) Kana iyo BGA yeimba huru yakabikwa ne iyo hombe yekuchengetera, iyo hombe yekuchengetera inoshandurwa kuti ichinje kuti ishandise kuishandura kuti ishandise Kuchengeta kwevacuum kurongedza nzira;
(4) Avo vanodarika nguva yekuchengetedza vanofanira kubikwa pa125 ° C/24HRS. Avo vasingakwanise kuzvibika pa125 ° C, vozobika pa80 ° C/48HRS (kana zvakabikwa kakawanda 96HRS) zvinogona kushandiswa pamhepo;
(5) Kana zvikamu zvine zvakakosha zvekubika, zvichaverengerwa muSOP.
3. PCB kuchengetedza kutenderera> 3 mwedzi, 120 ° C 2H-4H inoshandiswa.
Chechina, PCB inodzora zvakatemwa
1. PCB yekuisa chisimbiso uye kuchengetedza
(1) PCB bhodhi yakavanzika yekuisa chisimbiso kuburitsa zuva rekugadzira rinogona kushandiswa zvakananga mukati memwedzi miviri;
(2) Zuva rekugadzira bhodhi rePCB riri mukati memwedzi ye2, uye zuva rekuparadza rinofanira kuiswa mushure mekuiswa chisimbiso;
(3) Zuva rekugadzira bhodhi rePCB riri mukati memwedzi miviri, uye rinofanira kushandiswa kushandiswa mukati memazuva mashanu mushure mekuputswa.
2. PCB kubika
(1) Avo vanoisa chisimbiso chePCB mukati memwedzi ye2 yezuva rekugadzira kwemazuva anopfuura 5, tapota bheka pa 120 ± 5 ° C kweawa imwe;
(2) Kana PCB ikadarika mwedzi miviri kupfuura zuva rekugadzira, ndapota bika pa120 ± 5 ° C kweawa imwe isati yatanga;
(3) Kana PCB ikapfuura 2 kusvika 6 mwedzi yezuva rekugadzira, ndapota bika pa120 ± 5 ° C kwemaawa maviri usati waenda online;
(4) Kana PCB inopfuura 6 mwedzi kusvika 1 gore, ndapota bheka pa 120 ± 5 ° C kwemaawa mana isati yatanga;
(5) PCB yakabikwa inofanira kushandiswa mukati memazuva mashanu, uye inotora awa imwe kuti igoche kweawa imwe isati yashandiswa.
(6) Kana PCB ikadarika zuva rekugadzira kwegore rimwe, ndapota bikai pa120 ± 5 ° C kwemaawa mana isati yatanga, uye mozotumira fekitori yePCB kupfapfaidza tin kuti ive online.
3. Nguva yekuchengeta yeIC vacuum seal packaging:
1. Ndokumbira utarise zuva rekuisa chisimbiso chebhokisi rega rega revacuum packaging;
2. Nguva yekuchengetedza: Mwedzi gumi nemaviri, mamiriro ekuchengetedza mamiriro ezvinhu: pakupisa
3. Tarisa kadhi rehumidity: kukosha kwekuratidzira kunofanira kuva pasi pe20% (blue), yakadai> 30% (tsvuku), zvichiratidza kuti IC yakatora unyoro;
4. Chikamu cheI IC mushure mekuvhara chisimbiso chisati chashandiswa mukati meawa 48: kana chikasashandiswa, chikamu cheIC chinofanira kubikwa zvakare apo kubudiswa kwechipiri kunotangwa kubvisa dambudziko re hygroscopic rechikamu cheIC:
(1) High -tembiricha kurongedza zvinhu, 125 ° C (± 5 ° C), maawa makumi maviri nemana;
(2) Usaramba tembiricha yekurongedza zvinhu, 40 ° C (± 3 ° C), maawa 192;
Kana iwe usingaishandise, unofanirwa kuidzosera kubhokisi rakaoma kuti uichengete.
5. Chirevo chekutonga
1. Yekuita, kuyedza, kugadzirisa, kushuma kushuma, chirevo chemukati, uye zviri mushumo zvinosanganisira (serial nhamba, matambudziko akashata, nguva dzenguva, huwandu, chiyero chakashata, kuongororwa kwechikonzero, nezvimwewo)
2. Munguva yekugadzira (yekuedza) maitiro, dhipatimendi rehutano rinoda kuwana zvikonzero zvekuvandudza uye kuongorora kana chigadzirwa chacho chakakwirira se3%.
3. Zvichienderana, kambani inofanirwa kuita nhamba, kuyedza, uye mishumo yekugadzirisa kuti igadzirise fomu remushumo remwedzi nemwedzi kutumira mushumo wepamwedzi kumhando nemaitiro ekambani yedu.
Nhanhatu, tin paste kudhinda uye kudzora
1. Gumi paste inofanira kuchengetwa pa 2-10 ° C. Inoshandiswa maererano nemitemo yepamusoro yekutanga yekutanga, uye tag control inoshandiswa. Iyo tinnigo paste haina kubviswa pakamuri tembiricha, uye yenguva dhipoziti nguva haifanire kudarika maawa makumi mana nemasere. Idzosere mufiriji munguva yefiriji. Kaifeng's paste inoda kushandiswa mune 24 diki. Kana iyo isina kushandiswa, ndapota idzosere mufiriji nenguva kuti uichengete uye uite rekodhi.
2. Kunyatsogadzirisa tin paste printing machine inoda kuunganidza tin paste kumativi ose espatula maminitsi makumi maviri ega ega, uye kuwedzera tin paste itsva yega 2-4h;
3. Chikamu chekutanga chekugadzira siriki chisimbiso chinotora mapoinzi mapfumbamwe kuyera ukobvu hwerata, ukobvu hwemarata: muganho wepamusoro, ukobvu hwesimbi mesh+ukobvu hwesimbi mesh*40%, muganho wepasi, ukobvu hwesimbi mesh+ukobvu hwesimbi mesh*20%. Kana kushandiswa kwechishandiso chekurapa kudhinda kuchishandiswa kuPCB uye kurapa kunoenderana, zviri nyore kusimbisa kana kurapwa kunokonzerwa nekukwana kwakakwana; iyo yekudzoka welding yekuyedza tembiricha data inodzoserwa, uye inovimbiswa kamwechete pazuva. Tinhou inoshandisa SPI control uye inoda kuyerwa yega 2H. Chirevo chekutarisa chitarisiko mushure mechoto, chinofambiswa kamwe chete 2 h, uye kuendesa iyo kuyerwa data kumaitiro ekambani yedu;
4. Kudhinda kusina kunaka kwetini paste, shandisa jira risina guruva, chenesa PCB pamusoro petini paste, uye shandisa pfuti yemhepo kuchenesa nzvimbo kuti usarase hupfu hwerata;
5. Pamberi pechikamu, kuzviongorora-kuzviongorora kwetini paste kunosarura uye tip tip. Kana iyo yakadhindwa yakadhindwa, zvinodikanwa kuongorora chikonzero chisina kujairika nenguva.
6. Optical control
1. Material verification: Tarisa BGA isati yatanga, kana IC iri vacuum packaging. Kana isina kuvhurwa mune vacuum packaging, ndapota tarisa iyo humidity chiratidzo kadhi uye tarisa kana iri hunyoro.
(1) Ndokumbira utarise chinzvimbo kana zvinhu zviri pazvinhu, tarisa zvakanyanya zvisiri izvo, uye zvinyorese zvakanaka;
(2) Kuisa zvinodiwa zvepurogiramu: Teerera kukururama kwechigamba;
(3) Kunyangwe iyo yekuzviedza yakarerekera shure kwechikamu; kana paine touchpad, inoda kutangwazve;
(4) Inoenderana neSMT SMT IPQC maawa maviri ega ega, iwe unofanirwa kutora 5-10 zvidimbu kuDIP pamusoro-welding, ita iyo ICT (FCT) basa bvunzo. Mushure mekuyedza OK, unofanirwa kumaka paPCBA.
Zvinomwe, kudzorera kudzora uye kutonga
1. Kana overwing welding, isa tembiricha yechoto zvichienderana nehuwandu hwemagetsi chikamu, uye sarudza tembiricha yekuyera bhodhi yechigadzirwa chinoenderana kuti uedze tembiricha yechoto. Iko kunze kwenyika tembiricha tembiricha curve inoshandiswa kusangana kana izvo zvinodikanwa zvewelding zve lead-free tin paste zvinosangana;
2. Shandisa inotungamira-isina muchoto tembiricha, kutonga kwechikamu chimwe nechimwe kunotevera, kutsetseka kwekudziya uye kutonhora kutsetseka pane inogara tembiricha tembiricha tembiricha nguva yekunyungudika (217 ° C) pamusoro pe220 kana kupfuura nguva 1 ℃ ～ 3 ℃ /SEC -1 ℃ ～ -4 ℃/SEC 150℃ 60 ~ 120SEC 30 ～ 60SEC 30 ～ 60SEC;
3. The chigadzirwa interval inopfuura 10cm kudzivisa kusaenzana kupisa, tungamirira kusvikira virtual welding;
4. Usashandise kadhibhodhi kuisa PCB kudzivirira kudhumhana. Shandisa vhiki nevhiki kutamisa kana anti-static foam.
8. Kuonekwa kwemaziso uye maonero ekuongorora
1. BGA inotora maawa maviri kutora X-ray kamwe chete nguva dzose, tarisa welding quality, uye tarisa kana zvimwe zvikamu zvakarerekera, Shaoxin, bubbles uye mamwe urombo welding. Ramba uchionekwa mu2PCS kuzivisa hunyanzvi kugadzirisa;
2.BOT, TOP inofanira kuongororwa kuti AOI inoonekwa sei;
3. Tarisa zvigadzirwa zvakashata, shandisa mavara akaipa kuti utarise nzvimbo dzakaipa, uye uzviise muzvigadzirwa zvakashata. Nzvimbo yesaiti inosiyaniswa zvakajeka;
4. Zvinodiwa zvegoho zveSMT zvikamu zvinopfuura 98%. Kune mishumo yehuwandu inodarika mwero uye inoda kuvhura isina kujairika ongororo imwe chete nekuvandudza, uye inoenderera mberi nekuvandudza gadziriso yekusavandudza.
Nine, back welding
1. Lead-isina tini tembiricha tembiricha inodzorwa pa255-265 ° C, uye hushoma kukosha kweiyo solder joint tembiricha paPCB board i235 ° C.
2. Basic marongero anodiwa kune wave welding:
a. Nguva yekunyudza tini ndeye: Peak 1 inodzora pa 0.3 kusvika 1 sekondi, uye peak 2 inodzora 2 kusvika 3 masekonzi;
b. Iyo yekumhanyisa kumhanya ndeye: 0.8 ～ 1.5 metres / miniti;
c. Tumira kona yekurerekera 4-6 madhigirii;
d. The spray pressure ye welded agent ndeye 2-3PSI;
e. Kumanikidzwa kwevhavha yetsono ndeye 2-4PSI.
3. Iyo plug-in material yapera -the-peak welding. Chigadzirwa chacho chinoda kuitwa uye chakashandisa furo kuparadzanisa bhodhi kubva pabhodhi kudzivirira kudhumhana nekukwesha maruva.
Gumi, bvunzo
1. ICT bvunzo, edza kupatsanurwa kwe NG uye OK zvigadzirwa, bvunzo OK mabhodhi anoda kunamirwa neICT test label uye kuparadzaniswa nefuro;
2. Kuongororwa kweFCT, kuedza kupatsanurwa kwezvigadzirwa zve NG uye OK, kuedza bhodhi re OK rinoda kuiswa kune FCT test label uye rakaparadzana nefuro. Mishumo yebvunzo inofanirwa kuitwa. Iyo serial nhamba iri pamushumo inofanirwa kunge inoenderana neserial nhamba paPCB board. Ndokumbira utumire kune chigadzirwa cheNG uye uite basa rakanaka.
Gumi nerimwe, kurongedza
1. Maitiro ekushanda, shandisa vhiki nevhiki kutamisa kana anti-static gobvu furo, PCBA haigone kurongedzerwa, kudzivirira kudhumhana, uye kudzvanywa kwepamusoro;
2. Pamusoro pePCBA kutakura, shandisa anti-static bubble bag packaging (hukuru hwe static bubble bag inofanira kuenderana), uye ipapo yakaputirwa nefuro kudzivirira masimba ekunze kubva pakuderedza buffer. Packaging, kutumira ne static rubber mabhokisi, kuwedzera zvikamu pakati pechigadzirwa;
3. Mabhokisi erubha akaiswa kuPCBA, mukati mebhokisi rerubha rakachena, bhokisi rekunze rakanyatsoratidzwa, kusanganisira zvinyorwa: kugadzirisa mugadziri, nhamba yekuraira, zita rechigadzirwa, huwandu, zuva rekutumira.
12. Kutumira
1. Pakutumira, mushumo webvunzo weFCT unofanirwa kusungirirwa, mushumo wakashata wekugadzirisa chigadzirwa, uye mushumo wekuongorora wekutumira unodiwa.
Nguva yekutumira: Jun-13-2023
