Inye, intshayelelo

Akukho khopha emngxunyeni yingxaki yokusebenza PCB. Ngokuphuhliswa kwesayensi kunye netekhnoloji, ukuchaneka kwe-PCB (umlinganiso wecandelo) kuyafuneka ukuba ibe phezulu kwaye iphakame, engazisi kuphela ingxaki kubavelisi be-PCB (ukungqubana phakathi kwexabiso kunye nomgangatho), kodwa ikwashiya inkathazo esemgangathweni efihliweyo kubathengi abaphantsi! Do simple analysis at this point below, hope to have enlightenment and help to relevant colleague!

2. Uhlalutyo lomzobo we-Fishbone

Kwenzeka ntoni ukuba akukho lubhedu kumngxunya we-PCB

Three, the classification and characteristics of copper hole

1. Akukho bhedu kumngxunya we-PTH: umaleko wombane wepleyiti yomhlaba yobhedu uyalingana kwaye uqhelekile. Umaleko wombane weplate emngxunyeni uhanjiswa ngokulinganayo ukusuka kwi-orifice ukuya kuphuka, kwaye ukwaphuka kugutyungelwe ngumaleko wombane emva komzobo.

Kwenzeka ntoni ukuba akukho lubhedu kumngxunya we-PCB

2.Iplate yombane ubhedu umngxunya ngaphandle kobhedu:

(1) The whole plate copper thin hole without copper — surface copper and hole copper plate electrical layer is very thin, after the graphic electrical pretreatment of micro etching hole in the middle of most of the plate copper is corroded, after the graphic electrical layer is encased;

(2) abukho ubhedu emngxunyeni obhityileyo wecwecwe lobhedu emngxunyeni – umaleko wombane wepleyiti yobhedu uyalingana kwaye uqhelekile, kwaye umaleko wombane weplate esemngxunyeni uyancipha ukusuka emngxunyeni ukuya kuphuka, kwaye ukwaphuka kuhlala kuphakathi emngxunyeni, kwaye umaleko wobhedu ushiyekile ekuqhekekeni

The right side has good homogeneity and symmetry, and the post-graph fracture is covered by graph layer.

Kwenzeka ntoni ukuba akukho lubhedu kumngxunya we-PCB

3. Lungisa imingxunya eyonakeleyo:

(1) ukulungisa ubhedu umngxunya ombi – itafile yobhedu itafile yombane umaleko wombane uyalingana kwaye uqhelekile, umngxuma weplate ubhedu umaleko wombane awunantsingiselo yokuthinta, ukwaphuka akuqhelekanga, kunokuvela kumngxunya womlomo kungabonakala embindini womngxunya , eludongeni lomngxunya kudla ngokubonakala ngathi yi-convex erhabaxa kunye nezinye izinto ezimbi, umzobo wombane emva kokuba ukwaphuka kugutyungelwe ngumzobo wombane.

(2) umhlwa ukugcinwa emngxunyeni, itafile itafile ipleyiti umaleko yombane iyunifomu kwaye iqhelekile, umngxuma ipleyiti yobhedu umaleko wombane awukho umkhwa wokuthinta, ukwaphuka akuqhelekanga, kunokuvela kwi-orifice kusenokubonakala embindini womngxunya , eludongeni lomngxunya kudla ngokubonakala ngathi yi-convex erhabaxa kunye nokunye okubi, umzobo ophukileyo womaleko wombane awuzange usongele umaleko wombane.

Kwenzeka ntoni ukuba akukho lubhedu kumngxunya we-PCB

4. Akukho mngxunya weplaki wobhedu: emva kokutsalwa kwemizobo, kukho izinto ezicacileyo ezibotshelelwe emngxunyeni, uninzi lwodonga lomngxunya lonakele, umaleko wombane ocacileyo oqhekekileyo awugutyungelwanga ngumaleko wombane.

Kwenzeka ntoni ukuba akukho lubhedu kumngxunya we-PCB

5. Bonakalisa umngxuma wombane ngaphandle kobhedu: umaleko wombane kuqhekeko awusongelwanga kumaleko ombane wombane – umaleko wombane kunye nobungqingqwa bombane ubungqingqwa bombane buyinto efanayo, ukwaphuka kwaphukile; Umaleko wombane ocacileyo ubonakalisa imeko yokuthinta kude kube kunyamalale, kwaye umaleko wombane uyaqhubeka nokwandiswa umgama ongaphaya komaleko wombane ocacileyo emva koko unqamule.

Iv. Isikhokelo soPhuculo:

Ukusebenza (iibhodi eziphezulu nezisezantsi, ukumiselwa kweparameter, ukugcinwa, ukuphathwa ngokungaqhelekanga);

2. Izixhobo (crane, feeder, ukufudumeza usiba, ukungcangcazela, impompo yomoya, umjikelo wokucoca);

3. Izinto eziphathekayo (iplate, ipotiyoni);

4. Iindlela (iiparameter, iinkqubo, iinkqubo kunye nolawulo lomgangatho);

5. Okusingqongileyo (ukwahluka okubangelwe kukungcola, ukungcola kunye nezinto ezahlukeneyo).

6. Imilinganiselo (uvavanyo lwamayeza olwelo, ukuhlolwa kobhedu).