1. olowerera

The so-called copper coating, is the idle space on the circuit board as a datum, and then filled with solid copper, these copper areas are also known as copper filling.

Kufunika kwa zokutira kwa mkuwa ndi: Kuchepetsa malo osokoneza bongo, sinthani luso lothana ndi kutsutsana; Muchepetse dontho lamagetsi, sinthani mphamvu yamagetsi; Yolumikizidwa ndi waya wapansi, zimathanso kuchepetsa malowa.

Komanso ndi cholinga chopanga PCB ikuwonjezera ngati kuphatikizika kotero kuti itheka, opanga ma pcb ambiri adzafunikiranso opanga PCB kuti mudzaze malo otseguka a PCB ndi waya. Ngati mkuwa sunagwiritsidwe ntchito moyenera, kudzakhala koyenera kutayika. Kaya mkuwa ndi "wabwino kuposa woipa" kapena "woipa kuposa wabwino"? Monga tonse tikudziwa, pankhani ya kuchuluka kwa nthawi yayitali, zomwe zidagawidwa za ukapolo pa bolodi la madera osindikizidwa zidzagwira ntchito. Kutalika kwapamwamba kuposa 1/20 kwa chiwongola dzanja chofanana ndi phokoso laphokoso, chithokomiro chimapangidwa, ndipo phokosolo lidzatulutsidwa kunja kudzera mu lumo. Ngati pali zokutira mwachisawawa mu PCB, zokutira zamkuwa zidzakhale chida chofalitsa phokoso.

Chifukwa chake, mugawo lalitali, musaganize kuti nthaka kwina, iyi ndi "waya pansi", kuyenera kukhala wochepera λ Ngati zokutira zamkuwa zikuchitika moyenera, kuyanja kwa mkuwa sikumangowonjezera kumene, komanso kumawonjezera gawo lawiri la kusokonekera. Chifukwa chake, mugawo lalitali, musaganize kuti nthaka kwina, iyi ndi "waya pansi", kuyenera kukhala wochepera λ Ngati zokutira zamkuwa zikuchitika moyenera, kuyanja kwa mkuwa sikumangowonjezera kumene, komanso kumawonjezera gawo lawiri la kusokonekera.

2.To mitundu ya zokutira zamkuwa

Pali njira ziwiri zophilira zamkuwa, ndiye kuti pali mkuwa wamkuwa komanso mkuwa, nthawi zambiri amafunsidwa malo akuluakulu kapena mkuwa wamkuwa ndi wabwino, osati wabwino.

Chifukwa chiyani? Malo akuluakulu okutira zamkuwa, ndikuwonjezera ntchito yapawiri komanso yotetezedwa, koma lalikulu lokutidwa ndi mkuwa, ngati wogulitsirayo amatha kuteteza, kapena ngakhale kuwira. Chifukwa chake, dera lalikulu la mkuwa limakutidwa, ndipo malo angapo nthawi zambiri amatsegulidwa kuti athetse zojambulazo za mkuwa wamkuwa.

Chida chophweka ndi mkuwa chimakhala chotchinga, gawo lakuchulukirachulukira, kuchokera pamalingaliro otenthetsera, gululi limakhala ndi gawo lina la mkuwa) ndikuchepetsa gawo lina la zamagetsi. Makamaka zokhudza mdera lanu, monga zikuwonetsera mu chithunzi pansipa: ndikofunikira kunena kuti Gridiyo imapangidwa ndi mizere yozungulira. Tikudziwa kuti kwa maderawo, m'lifupi mwake mizere ili ndi "kutalika kwa magetsi" ogwiritsira ntchito makonda a madera (kukula kwake kumatha kugawidwa ndi pafupipafupi (onani mabuku ogwirira ntchito).

Makina ogwirira ntchito sakhala okwera kwambiri, mwina mizere yamagetsi siyothandiza kwambiri, ndipo kutalika kwamagetsi kumagwirizana ndi ntchito yogwira, ndipo mukuwona kuti dera silikugwira ntchito bwino konse, ndipo pali siginecha kulikonse komwe kumasokoneza dongosolo.

Malangizowo akuyenera kusankha malinga ndi kapangidwe ka gulu la madera, osagwiritsa ntchito chinthu. Chifukwa chake, dera lalitali lolimbana ndi zofunikira za chida champhamvu chazikhalidwe zosiyanasiyana, dera lotsika kwambiri ndi gawo lalikulu lakale komanso lina lomwe limagwiritsidwa ntchito pompopompo.