A preface.

Alukho ithusi emgodini okuyinkinga yokusebenza ye PCB. Ngokuthuthuka kwesayensi nobuchwepheshe, ukucacisa kwe-PCB (ukubukeka kwesilinganiselo) kuyadingeka ukuthi kube phezulu nangaphezulu, okungalethi nje inkathazo kubakhiqizi be-PCB (ukuphikisana phakathi kwezindleko nekhwalithi), kepha futhi kushiya inkathazo yekhwalithi enkulu efihliwe kumakhasimende asezansi! Yenza ukuhlaziywa okulula kuleli phuzu elingezansi, unethemba lokuthola ukukhanyiselwa nokusiza osebenza naye ofanele!

2. Ukuhlaziywa komdwebo we-Fishbone

Simple analysis of PCB hole copper and improvement methods

Classification and characteristics of copper – free holes

1. Alukho ithusi emgodini we-PTH: ungqimba kagesi wengcwecwe yethusi engaphezulu lufana futhi lujwayelekile. Ungqimba kagesi wepuleti emgodini usatshalaliswa ngokulinganayo kusuka ku-orifice kuya ekuqhekekeni, futhi ukuphuka kumbozwe ungqimba kagesi ngemuva komdwebo.

Simple analysis of PCB hole copper and improvement methods

2. Plate yethusi kagesi imbobo elincanyana ngaphandle kwethusi:

(1) Ingcwecwe yonke yethusi imbobo ezacile ngaphandle kwethusi – ingaphezulu lethusi nembobo yethusi ipuleti ungqimba lukagesi lincane kakhulu, ngemuva kokuqalwa phansi okucacile kukagesi komgodi wokutshala omncane phakathi kweningi lepuleti lepuleti kudliwe, ngemuva kocwecwe lukagesi ivaliwe;

(2) alukho ithusi emgodini omncane wocezu lwethusi emgodini – ungqimba kagesi wepuleti lethusi lufana futhi lujwayelekile, futhi ungqimba kagesi wepuleti elisemgodini luyancipha ukusuka emgodini kuye ekuqhekekeni, futhi ukuphuka kuvamise ukuba maphakathi nomgodi, kuthi ungqimba lwethusi lushiywe ekuqhekekeni

Uhlangothi lwangakwesokudla lune-homogeneity enhle ne-symmetry, futhi ukuphuka kwe-post-graph kumbozwe ungqimba lwegrafu.

Simple analysis of PCB hole copper and improvement methods

3. Lungisa izimbobo ezilimele:

(1) ukukhanda ithusi imbobo embi – ungqimba wetafula lethusi ungqimba kagesi uyunifomu futhi ujwayelekile, umgodi wepuleti wensimbi ungqimba kagesi awunawo umugqa wokuthinta, ukuphuka akujwayelekile, kungavela emlonyeni womgodi nakho kungavela maphakathi nomgodi , odongeni lomgodi kuvame ukuvela i-convex enolaka nokunye okubi, umdwebo kagesi ngemuva kokuphuka kumbozwe ungqimba lukagesi womdwebo.

(2) ukugqwala ukugcinwa komgodi, itafula lethusi itafula lesendlalelo kagesi lifana futhi livamile, umgodi wepuleti wensimbi ungqimba kagesi awunawo umkhuba wokuthinta, ukuphuka akujwayelekile, kungavela ku-orifice nakho kungavela maphakathi nomgodi , odongeni lomgodi kuvame ukuvela i-convex enolaka nokunye okubi, umdwebo ophukile ungqimba lukagesi aluzange lusongele ungqimba lwensimbi kagesi.

Simple analysis of PCB hole copper and improvement methods

4. Awukho umgodi wepulagi yethusi: ngemuva kokudweba ingcaca, kunezinto ezisobala ezibhajwe emgodini, iningi lodonga lomgodi luyakhukuliseka, ungqimba lukagesi oluqhafazayo lapho luqhekeka alumboziwe ungqimba lukagesi wepuleti.

Simple analysis of PCB hole copper and improvement methods

5. Dweba imbobo kagesi ngaphandle kwethusi: ungqimba lukagesi ekuqhekekeni alusongelwanga kupuleti ungqimba kagesi – sibalo ungqimba kagesi kanye nobukhulu bensimbi kagesi ubukhulu bufana, ukuphuka kuphukile; Isendlalelo sikagesi esikhombisayo sikhombisa ukuthambekela kokuthinta kuze kube yilapho sinyamalala, futhi ungqimba lukagesi wepuleti luyaqhubeka nokunwebela ibanga elingaphezu kongqimba lukagesi olusobala bese luyanqamuka.

Simple analysis of PCB hole copper and improvement methods

Simple analysis of PCB hole copper and improvement methods

Iv. Ukuqondiswa Kwentuthuko:

1. Ukusebenza (amabhodi aphezulu nangaphansi, ukumiswa kwepharamitha, ukugcinwa, ukuphathwa okungavamile);

2. Izinsiza kusebenza (i-crane, i-feeder, ipeni lokushisa, ukudlidliza, iphampu yomoya, umjikelezo wokuhlunga);

3. Izinto zokwakha (ipuleti, i-potion);

4. Izindlela (imingcele, izinqubo, izinqubo nokulawulwa kwekhwalithi);

5. Imvelo (ukwahluka okubangelwa ukungcola, ukungcola nokuxubile).

6. Ukukala (ukuhlolwa kwemithi ewuketshezi, ukuhlolwa kokubuka ithusi).