PCB Mfundo zabodza: ​​Kupanga kwa PCB kumayambira ndi “gawo lapansi” la PCB lopangidwa ndi Glass Epoxy kapena zida zofananira. Gawo loyamba lopeka ndikupanga kulumikizana kwa PCB pa intaneti pakati pazigawo pogwiritsa ntchito njira yochotsera kuti “isindikize” mzere wolakwika wa bolodi ya PCB yomwe ili pamakina azitsulo.

Chinyengo ndikufalitsa zojambulazo zazitsulo zamkuwa pamwamba pake ndikuchotsa zochulukirapo. Ngati mukupanga PCB yamagulu awiri, zojambulazo zamkuwa zidzaphimba mbali zonse ziwiri za gawo lapansi. Ndipo ndikufuna kuchita bolodi yama multilayer kuti ndikwanitse kupanga mbale ziwiri zapawiri zokhala ndi zomata zomata “press close” kuwuka kunapita.

Kenako, kuboola ndi plating zofunika kuti pulagi mu zigawo zikhoza kuchitika pa bolodi PCB. Pambuyo pokhomedwa ndi makina momwe amafunira, mabowo amayenera kukulungidwa mkati (yokutidwa ndi Tekinoloje yaukadaulo, PTH). Pambuyo popanga chitsulo mkati mwa bowo, mizere yamkati yazingwe iliyonse imatha kulumikizidwa.

Mabowo ayenera kutsukidwa ndi zinyalala asanayambe kuyala. Izi ndichifukwa choti utomoni wa epoxy umatulutsa kusintha kwamankhwala mukatenthetsa, ndipo umaphimba mkati mwa PCB, chifukwa chake uyenera kuchotsedwa kaye. Kuyeretsa ndi kuyeretsa kumachitika mothandizidwa ndi mankhwala. Kenako, solder paint (solder ink) imagwiritsidwa ntchito pakachitsulo kakang’ono kwambiri ka PCB kuti ma waya a PCB asakhudze gawo lolumikizana.

Zolemba zosiyanasiyana zimasindikizidwa pa bolodi loyang’anira posonyeza komwe gawo lirilonse lili. Sitiyenera yokutidwa pa aliyense PCB kapangidwe Kulumikizana kapena chala golide, apo ayi akhoza kuchepetsa solderability kapena bata kugwirizana panopa. Kuphatikiza apo, ngati pali kulumikizana kwazitsulo, gawo la “chala” limakhala lokutidwa ndi golide kuti liwonetsetse kulumikizana kwapamwamba kwambiri pakulowetsedwa muzowonjezera. Pomaliza, pali mayeso. Kuyesa PCB kwakanthawi kochepa kapena dera lotseguka, kuyesa kwamagetsi kapena kwamagetsi kungagwiritsidwe ntchito. Mayeso owoneka bwino amagwiritsa ntchito sikani kuti apeze zolakwika m’magawo, pomwe mayeso amagetsi amagwiritsa ntchito chowunikira kuti awone kulumikizana konse. Kuyesa kwamagetsi kumakhala kolondola kwambiri pakupeza maseketi afupipafupi kapena zopuma, koma kuyesa kwamawonekedwe kumatha kuzindikira mosavuta zovuta ndi mipata yolakwika pakati pa oyendetsa.

Gawo lapansi la PCB bwino, chidutswa chomaliza cha bolodi chachikulu chili pa zida za PCB gawo lililonse malinga ndi zosowa zosiyanasiyana zazing’ono ndi zazing’ono – gwiritsani makina a SMT othamangitsira makina oyamba a IC chip ndi zinthu za SMD “kuwotcherera, pulagi yamakina ena imagwira ntchitoyi, kudzera mu mawonekedwe a funde / kutsekemera komwe zigawo za splice zimakhazikika pa PCB, Bokosi la amayi lidapangidwa. Chithandizo njira: Opunthira kalasi:

1, kukonza pansi: kusamalira pansi, kuyenera kuteteza utoto wa pamwamba pake, sikungawononge “mawonekedwe” ake, komabe, chifukwa cha utoto wa utoto pamwamba pake mosiyanasiyana, sungani njira momwemonso aliyense sizofanana.

Nitro wood varnish floor: chosasangalatsa misozi ndi nsalu yonyowa kapena madzi, kuopa kutaya luster ndi chipolopolo. Bodza lililonse pakati pa theka la chaka kapena miyezi ingapo, burashi ndi phula losalala likupaka, khalani ndi chopukutira choyera cha thonje lotsatira. Gwiritsani ntchito thaulo lofewa kapena thonje la thonje nthawi zina pukutani fumbi pachitini cha utoto. Samalani kuti mupewe kukhudzana ndi utsi.

Lacquer yotakata ndi pansi pa lacquer: sichingafufute nthawi zambiri ndi madzi omveka a burashi yotentha kwambiri.

Sonkhanitsani ammonia mafuta lacquer mtundu bolodi: zosasangalatsa misozi ndi madzi, kuwopa kuti misozi yapadziko lapansi ndiyabwino, ndikuchepetsa mawonekedwe akunja. Mowa wokhala ndi mowa wokometsera pansi: nsalu yonyowa kapena thaulo lofewa lingagwiritsidwe ntchito mukamagwiritsa ntchito misozi, chinthu chosavutikira pansi, sichingaphimbe pamwamba ndi pepala la pulasitiki kapena chinthu cha pepala. Kachiwiri, kusamalira pansi pankhuni kuyeneranso kusamala kuti tipewe zida zolemera zazitsulo, matailosi agalasi, misomali ndi zinthu zina zolimba zikanda pansi, osasuntha mipando pansi kukoka kusuntha; Pewani kutulutsa ndudu pansi ndikuyika zinthu za asidi ndi alkali; Osayika mwachindunji ketulo, mbaula ndi zinthu zina zotentha kwambiri.

Pansi pankhuni patatha nthawi yayitali, ikuwoneka ngati chinthu chakale, iyenera kukwera nthawi yayitali. Njira ya Lacquer ili ndi mitundu iwiri: mtundu umodzi ndikumakwera lacquer ndi utoto, njira yake ndi mipando ya ukalipentala ndiyofanana, sera pansi pa besmear mukadikirira youma, 2 siyofunika mtundu uliwonse kuti upange utoto, nawonso palibe utoto uliwonse, burashi ndi sera pansi mwachindunji komabe. Chifukwa matabwa apansi ndi mtundu wachilengedwe, amavala bwino osati kokha, ndipo amatha kutha nthawi ngati tsiku lililonse likudutsa mwangwiro, mwachilengedwe, makamaka burashi yoyera yamatabwa, imakhala yowala kwambiri, yosalala, yokongola.

2, kukonza kwa laminate pansi

Kugwiritsa ntchito pansi pamatabwa kumakhala kosavuta, ndikufuna kuzindikira mfundo zotsatirazi tsiku ndi tsiku, kungatsimikizire kugwiritsidwa ntchito pansi.

(1) Malo onse amatabwa asintha chinyezi chawo ndikukula ndi kuchepa kwa chinyezi kapena kusintha kwa kutentha, komwe kumakhudza kukula kwa pansi. Chifukwa chiyenera kufanana ndi khungu lotetezedwa chimodzimodzi, sungani chinyezi chokwanira pansi.

(2) Pansi pake sipafunika sera ndi penti. Musagwiritse ntchito sandpaper kupukuta.

(3) Tikulimbikitsidwa kuyikapo MATS pakhomo kuti tipewe fumbi kuti lisalowe ndikuwononga pansi.

(4) Madontho ndi mafuta pansi ayenera kutsukidwa ndi oyeretsa m’nyumba. Osagwiritsa ntchito madzi ambiri kutsuka pansi.

(5) madera akumpoto owuma, m’nyengo yozizira ayenera kulabadira kukulitsa chinyezi cha pansi, chonyowa mopopera mopopera, moyenera kuwonjezera chinyezi chapamwamba, chitha kuthana ndi phompho ndi kulimbana. Ngati ming’alu ikuchitika m’malo osiyanasiyana, chonde dziwitsani omwe amagulitsawo munthawi yake ndikudzaza malowo. Mukadzaza, onjezerani chinyezi chapamwamba kuti muthandizirenso kupumula pansi.

Nthawi yamvula, chonde tsekani Mawindo mosamala kuti mvula ingagwe.

(7) Chonde tcherani khutu pakukonza zotenthetsera, zowongolera mpweya ndi zina m’nyumba kuti mupewe kutayikira kwamadzi koviikidwa pansi. Ngati madzi akupezeka pansi, ayenera kutsegula pansi pothiriridwa ndi madzi posachedwa, mumthunzi mumakhala mpweya wouma kapena wogulitsa zidziwitso munthawi yake agulitsa.

(8) Pakhomo la chimbudzi ndi khitchini, chidwi chiyenera kuperekedwa pakusamba kwamadzi kwakanthawi.

(9) Osakoka mukamagwiritsa ntchito mipando. Ndibwino kuti muthe kukweza.