1. Uyini upende wobufakazi obuthathu?
I-anti-paint emithathu iyifomula ekhethekile yopende, esetshenziselwa ukuvikela amabhodi wesifunda kanye nemishini ehlobene ekugugulekeni kwemvelo. Upende wobufakazi obuthathu unokumelana okuhle nokushisa okuphezulu nokuphansi; yakha ifilimu evikelayo esobala ngemva kokuphulukiswa, ene-insulation enhle kakhulu, ukumelana nomswakama, ukumelana nokuvuza, ukumelana nokushaqeka, ukumelana nothuli, ukumelana nokugqwala, ukumelana nokuguga, ukumelana ne-corona nezinye izakhiwo.
Ngaphansi kwezimo zangempela, njengamakhemikhali, ukudlidliza, uthuli oluphezulu, isifutho sikasawoti, umswakama kanye nokushisa okuphezulu, ibhodi lesifunda lingase libe nokugqwala, ukuthambisa, ukuguquguquka, isikhutha nezinye izinkinga, ezingabangela ukuthi ibhodi lesifunda lingasebenzi kahle.
Upende olunobufakazi obuthathu lumbozwe phezu kwebhodi lesifunda ukuze kwakheke ungqimba lwefilimu yokuvikela enobufakazi obuthathu (ubufakazi obuthathu bubhekisela ekunqandeni umswakama, isifutho sokulwa nosawoti kanye ne-anti-mildew).
Ngaphansi kwezimo zangempela, njengamakhemikhali, ukudlidliza, uthuli oluphezulu, isifutho sikasawoti, umswakama kanye nokushisa okuphezulu, ibhodi lesifunda lingase libe nokugqwala, ukuthambisa, ukuguquguquka, isikhutha nezinye izinkinga, ezingabangela ukuthi ibhodi lesifunda lingasebenzi kahle.
Upende olunobufakazi obuthathu lumbozwe phezu kwebhodi lesifunda ukuze kwakheke ungqimba lwefilimu yokuvikela enobufakazi obuthathu (ubufakazi obuthathu bubhekisela ekunqandeni umswakama, isifutho sokulwa nosawoti kanye ne-anti-mildew).
2, imininingwane kanye nezidingo zenqubo emithathu yokulwa nopende
Izidingo zokupenda:
1. Futha ukujiya kopende: ukujiya kwefilimu kapende kulawulwa ngaphakathi kuka-0.05mm-0.15mm. Ugqinsi lwefilimu eyomile luyi-25um-40um.
2. I-secondary coating: Ukuze kuqinisekiswe ukushuba kwemikhiqizo enezidingo eziphezulu zokuvikela, ukumbozwa kwesibili kungenziwa ngemuva kokuthi ifilimu kapende ilashwe (nquma ukuthi kufanele wenze ukugqoka kwesibili ngokuvumelana nezidingo).
3. Ukuhlola nokulungiswa: hlola ngokubukeka ukuthi ibhodi lesifunda elihlanganisiwe liyahlangabezana yini nezidingo zekhwalithi, futhi ulungise inkinga. Isibonelo, uma izikhonkwane nezinye izindawo zokuzivikela zingcoliswe ngopende ofaka ubufakazi obuthathu, sebenzisa ama-tweezers ukuze ubambe ibhola likakotini noma ibhola likakotini elihlanzekile elicwiliswe emanzini ebhodi lokuwasha ukuze ulihlanze. Lapho ukhuhla, qaphela ukuthi ungawashi ifilimu kapende evamile.
4. Ukushintshwa kwezingxenye: Ngemva kokuba ifilimu kapende zelashiwe, uma ufuna ukushintsha izingxenye, ungenza kanje:
(1) Sondeza izingxenye ngokuqondile ngensimbi ye-chromium kagesi, bese usebenzisa indwangu kakotini ecwiliswe emanzini ebhodi ukuze uhlanze impahla ezungeze iphedi.
(2) Ezinye izingxenye zokushisela
(3) Sebenzisa ibhulashi ukucwilisa upende ofaka ubufakazi obuthathu ukuze uxube ingxenye yokushisela, futhi wenze indawo yefilimu kapende yome futhi iqine.
Izimfuneko zokusebenza:
1. Indawo yokusebenza kapende enobufakazi obuthathu kufanele ingabi nothuli futhi ihlanzeke, futhi akumele kube khona uthuli olundizayo. Kumelwe kunikezwe umoya omuhle futhi abasebenzi abangafanele banqatshelwe ukungena.
2. Gqoka imaski noma imaski yegesi, amagilavu enjoloba, izibuko zokuvikela amakhemikhali nezinye izinto zokuzivikela phakathi nokusebenza ukuze ugweme ukulimala emzimbeni.
3. Ngemva kokuba umsebenzi usuqediwe, hlambulula amathuluzi asetshenzisiwe ngesikhathi, futhi uvale futhi uvale ngokuqinile isitsha ngopende wobufakazi obuthathu.
4. Izinyathelo eziphikisana ne-static kufanele zithathwe kumabhodi wesifunda, futhi amabhodi wesifunda akufanele ahlanganiswe. Ngesikhathi senqubo yokumboza, amabhodi wesifunda kufanele abekwe ngokuvundlile.
Izimfuneko zekhwalithi:
1. Ingaphezulu lebhodi lesifunda akufanele libe nokugeleza kwepende noma ukuconsa. Uma upende upendiwe, akufanele uconse engxenyeni ehlukanisiwe ngokwengxenye.
2. Isendlalelo sikapende esinobufakazi obuthathu kufanele sibe sicaba, sikhanye, sifane ngokujiya, futhi sivikele ingaphezulu lephedi, ingxenye yesichibi noma i-conductor.
3. Ingaphezulu lesendlalelo sikapende kanye nezingxenye akumele zibe neziphambeko ezifana namabhamuza, amaphinifa, ama-ripples, izimbobo ezinciphayo, uthuli, njll. nezinto zangaphandle, akukho ukuchaki, akukho mkhuba wokuxebuka, phawula: ngaphambi kokuba ifilimu kapende yome, yenza ungathinti upende ngokuthanda kwakho.
4. Izingxenye ezihlukanisiwe noma izindawo azikwazi ukugcotshwa ngopende ofaka ubufakazi obuthathu.
3. Izingxenye namadivayisi angeke agcotshwe ngopende ongekho emthethweni
(1) Imishini evamile engagqoki: penda irediyetha enamandla amakhulu, usinki wokushisa, isibambo samandla, i-diode enamandla amakhulu, isikhali sikasimende, ukushintsha ikhodi, i-potentiometer (i-resistor elungisekayo), ibhaza, isibambi sebhethri, isibambi se-fuse, amasokhethi e-IC, ukukhanya amaswishi okuthinta, ama-relay nezinye izinhlobo zamasokhethi, izihloko zamaphini, amabhulokhi wetheminali kanye ne-DB9, i-plug-in noma i-SMD ekhipha ukukhanya okukhanyayo (umsebenzi ongabonisi), amashubhu edijithali, izimbobo zezikulufu eziphansi.
(2) Izingxenye namadivayisi ashiwo imidwebo engakwazi ukusetshenziswa ngopende olunobufakazi obuthathu.
(3) Ngokwe-“Catalogue of Non-Three-proof Components (Indawo)”, kubekwe ukuthi amadivaysi anopende ofaka ubufakazi obuthathu awanakusetshenziswa.
Uma izisetshenziswa ezivamile ezingagqoki emithethweni zidinga ukumbozwa, zingambozwa ngengubo yobufakazi obuthathu ecaciswe umnyango we-R&D noma imidwebo.
Okwesine, izinyathelo zokuqapha zenqubo emithathu yokufafaza upende imi kanje
1. I-PCBA kufanele yenziwe ngomphetho owenziwe futhi ububanzi akufanele bube ngaphansi kuka-5mm, ukuze kube lula ukuhamba emshinini.
2. Ubude nobubanzi obukhulu bebhodi le-PCBA ngu-410*410mm, kanti ubuncane bungu-10*10mm.
3. Ubude obukhulu bezinto ezifakwe kwi-PCBA ngu-80mm.
4. Ibanga elincane phakathi kwendawo efuthwe nendawo engafafaziwe yezingxenye ze-PCBA ngu-3mm.
5. Ukuhlanza ngokuphelele kungaqinisekisa ukuthi izinsalela ezigqwalayo zisuswa ngokuphelele, futhi wenze upende oluthathu lunamathele ebusweni bebhodi lesifunda kahle. Ubukhulu bepende buphakathi kuka-0.1-0.3mm. Izimo zokubhaka: 60 ° C, imizuzu engu-10-20.
6. Phakathi nenqubo yokufafaza, ezinye izakhi azikwazi ukufuthwa, njengalezi: izingxenye zamandla aphezulu akhipha imisebe noma izingxenye zerediyetha, izihluthulelo zamandla, ama-diode kagesi, izihluthulelo zikasimende, amaswishi okudayela, izihluthulelo ezilungisekayo, amabhaza, isibambi sebhethri, isibambi somshuwalense (ishubhu) , isibambi se-IC, ukushintsha kokuthinta, njll.
V. Ukwethulwa kwebhodi lesifunda ngopende olufaka ubufakazi obuthathu
Lapho ibhodi lesifunda lidinga ukulungiswa, izingxenye ezibizayo ebhodini lesifunda zingakhishwa ngokwehlukana futhi ezinye zingalahlwa. Kodwa indlela evamile kakhulu ukususa ifilimu yokuzivikela kuwo wonke noma ingxenye yebhodi lesifunda, futhi esikhundleni sezingxenye ezilimele ngamunye ngamunye.
Uma ususa ifilimu evikelayo yopende oluthathu, qinisekisa ukuthi i-substrate ngaphansi kwengxenye, ezinye izingxenye ze-elekthronikhi, kanye nesakhiwo esiseduze nendawo yokulungisa ngeke sonakaliswe. Izindlela zokususa ifilimu ezivikelayo ikakhulukazi zifaka: ukusebenzisa ama-solvents amakhemikhali, i-micro-grinding, izindlela zemishini kanye ne-desoldering ngokusebenzisa ifilimu yokuzivikela.
Ukusetshenziswa kwama-solvents amakhemikhali kuyindlela evame ukusetshenziswa kakhulu yokususa ifilimu evikelayo yepende elinobufakazi obuthathu. Isihluthulelo sisezicini zamakhemikhali zefilimu evikelayo ezosuswa kanye nezakhiwo zamakhemikhali ze-solvent ethize.
Ukugaya okuncane kusebenzisa izinhlayiya ezinesivinini esikhulu ezikhishwe ku-nozzle ukuze "zigaye" ifilimu yokuvikela kapende ofaka ubufakazi obuthathu ebhodini lesifunda.
Indlela yemishini iyindlela elula yokususa ifilimu evikelayo yopende wobufakazi obuthathu. Ukuqothula ngefilimu yokuzivikela ukuqala ukuvula imbobo yokukhipha amanzi efilimu yokuzivikela ukuze kukhishwe i-solder encibilikisiwe.