Kuchokera ku PCB World,

Anthu ambiri amagwiritsa ntchito mtundu wa PCB kusiyanitsa mtundu wa bolodi.M'malo mwake, mtundu wa boardboard ulibe chochita ndi machitidwe a PCB.

PCB bolodi, osati kuti mtengo wapamwamba, ndi wosavuta kugwiritsa ntchito.

Mtundu wa PCB pamwamba kwenikweni ndi mtundu wa solder kukana.Kukaniza kwa solder kungalepheretse kuchitika kwa kugulitsa kolakwika kwa zigawo, ndikuchedwetsa moyo wautumiki wa chipangizocho, ndikuletsa makutidwe ndi okosijeni ndi dzimbiri la dera la chipangizocho.

Ngati mumvetsetsa matabwa a PCB amakampani akuluakulu monga Huawei ndi ZTE, mudzapeza kuti mtunduwo ndi wobiriwira.Izi ndichifukwa choti ukadaulo wobiriwira ndiwokhwima kwambiri komanso wosavuta.

Kuphatikiza pa zobiriwira, mtundu wa PCB ukhoza kufotokozedwa ngati "mabelu ndi mluzu": woyera, wachikasu, wofiira, wabuluu, wamtundu wa matte, ngakhale chrysanthemum, wofiirira, wakuda, wobiriwira, etc. Kukhalapo kwa zoyera, chifukwa ndikofunikira kupanga zinthu zowunikira Mitundu yomwe imagwiritsidwa ntchito, komanso kugwiritsa ntchito mitundu ina, nthawi zambiri imakhala yolembera zinthu.Pagawo lonse la kampaniyo kuchokera ku R&D kupita kumtunda wazinthu, kutengera magwiritsidwe osiyanasiyana a PCB, bolodi yoyesera ikhoza kukhala yofiirira, bolodi lakiyi lidzakhala lofiira, ndipo matabwa amkati amakompyuta azikhala akuda, omwe amalembedwa. ndi mtundu.

The ambiri PCB bolodi ndi wobiriwira bolodi, amatchedwanso wobiriwira mafuta.Inki yake ya solder mask ndi yakale kwambiri, yotsika mtengo komanso yotchuka kwambiri.Kuphatikiza paukadaulo wokhwima, mafuta obiriwira ali ndi zabwino zambiri:

Pokonza PCB, kupanga zinthu zamagetsi kumaphatikizapo kupanga ma board ndi kuzigamba.Panthawiyi, pali njira zingapo zodutsa chipinda chowala chachikasu, ndipo bolodi la PCB lobiriwira limakhala ndi mawonekedwe abwino kwambiri mu chipinda chowala chachikasu;chachiwiri, mu SMT patch processing, malata amagwiritsidwa ntchito.Masitepe a, patching ndi AOI calibration zonse zimafuna kuwala kwa malo, ndipo chida chapansi chobiriwira ndichosavuta kuchizindikira.

Mbali ina ya ntchito yoyendera imadalira ogwira ntchito kuti ayang'ane (koma tsopano ambiri a iwo amagwiritsa ntchito kuyesa kwa ndege m'malo mogwiritsa ntchito pamanja), kuyang'ana bolodi pansi pa kuwala kwamphamvu, zobiriwira zimakhala zaubwenzi ndi maso.Ma PCB obiriwira nawonso ndi ochezeka kwambiri ndi chilengedwe, ndipo sangatulutse mpweya wapoizoni akagwiritsidwanso ntchito pa kutentha kwambiri.

Mitundu ina ya PCB, monga buluu ndi yakuda, imakhala ndi cobalt ndi carbon, motero, chifukwa imakhala ndi mphamvu zowonongeka zamagetsi, ndipo pali chiopsezo chafupipafupi.

Tengani bolodi lakuda monga chitsanzo.Popanga, bolodi lakuda ndilomwe limayambitsa kusiyana kwa mitundu chifukwa cha zovuta za ndondomeko ndi zopangira, zomwe zimapangitsa kuti pakhale chilema chachikulu cha PCB.Zotsatira za bolodi lakuda lakuda sizovuta kusiyanitsa, zomwe zidzawonjezera zovuta pakukonza ndi kukonza pambuyo pake.Mafakitole ambiri a PCB sagwiritsa ntchito ma PCB akuda.Ngakhale m'mafakitale ankhondo ndi kuwongolera mafakitale, zinthu zokhala ndi zofunikira zapamwamba kwambiri zimagwiritsa ntchito magawo obiriwira a PCB.
　　
chithunzi
chithunzi
Kenako, tiyeni tikambirane za zotsatira za solder chigoba inki mtundu pa bolodi?

Kwa mankhwala omalizidwa, zotsatira za inki zosiyana pa bolodi zimawonekera makamaka mu maonekedwe, ndiye kuti, kaya ndi zabwino kapena ayi.Mwachitsanzo, zobiriwira zikuphatikizapo zobiriwira dzuwa, kuwala wobiriwira, mdima wobiriwira, matt wobiriwira, etc., mtundu ndi kuwala kwambiri, n'zosavuta kuona pulagi Maonekedwe a bolodi pambuyo dzenje ndondomeko si bwino, ndi ena opanga ' inki sizili bwino, utomoni ndi chiŵerengero cha utoto ndizovuta, padzakhala mavuto monga thovu, ndipo kusintha pang'ono kwa mtundu kungadziwikenso;zotsatira pa theka-anamaliza mankhwala makamaka zimaonekera Pankhani ya zovuta kupanga, vuto ili pang'ono zovuta kufotokoza.Ma inki amitundu yosiyanasiyana amakhala ndi mitundu yosiyanasiyana ya utoto, monga kupopera mbewu mankhwalawa ndi electrostatic, kupopera mbewu mankhwalawa, ndi kusindikiza pazenera.Chiŵerengero cha inki chimakhalanso chosiyana.Kulakwitsa pang'ono kupangitsa kuti mtunduwo uwoneke.vuto.

Ngakhale mtundu wa inki alibe mphamvu pa bolodi PCB, makulidwe a inki zimakhudza kwambiri impedance, makamaka bolodi madzi golide, amene ali ndi ulamuliro okhwima kwambiri pa makulidwe a inki;makulidwe ndi thovu la inki yofiira ndizosavuta kuwongolera, ndipo inki yofiira imakwirira Pa mzere, zolakwika zina zimatha kuphimbidwa, ndipo mawonekedwe ake ndi okongola kwambiri, koma choyipa ndichakuti mtengo wake ndi wokwera mtengo.Pojambula, zowonekera zofiira ndi zachikasu zimakhala zokhazikika, ndipo zoyera ndizovuta kwambiri kuzilamulira.
　
chithunzi
chithunzi
Kufotokozera mwachidule, mtunduwo ulibe mphamvu pa ntchito ya bolodi yomalizidwa, ndipo imakhala ndi zotsatira zochepa pa msonkhano wa PCB ndi maulalo ena;mu mapangidwe a PCB, tsatanetsatane uliwonse mu ulalo uliwonse umayendetsedwa mosamalitsa, ndipo bolodi la PCB limakhala Chinsinsi cha bolodi labwino.PCB mavabodi amitundu yosiyanasiyana ndi makamaka malonda malonda.Ndi osavomerezeka kuti ntchito mtundu ngati kuganizira zofunika PCB processing.