Uziwelda Njani iibhodi zeSekethe ezimacala mabini?

I. Iimpawu zebhodi yesekethe enamacala amabini

Umahluko phakathi kweebhodi zeesekethe ezihlangeneyo kunye namacala amabini linani leengqimba zobhedu.

Ibhodi yesiphaluka esinamacala amabini yibhodi yesekethe enobhedu kumacala omabini, anokudibaniswa ngemingxuma.Kwaye kukho uluhlu olulodwa kuphela lobhedu kwelinye icala, elingasetyenziselwa kuphela imigca elula, kwaye imingxuma eyenziwe ingasetyenziselwa kuphela iplagi-in kodwa kungekhona ukuqhuba.

Iimfuno zobugcisa zebhodi yesekethe yamacala amabini kukuxinana kweengcingo, i-aperture incinci, kwaye i-aperture ye-metalized hole incinci kwaye incinci.Umaleko ukuya umaleko uqhakamshelwano ixhomekeke kumgangatho umngxuma metallized, ezinxulumene ngqo PCB ukuthembeka.

Ngokuncitshiswa kwe-aperture, i-original ayinayo impembelelo kwi-debris enkulu ye-aperture, njenge-brush debris, i-volcanic ash, xa ishiywe emngxunyeni ngaphakathi, iya kwenza imvula yeekhemikhali yobhedu, i-copper plating ilahlekile, akukho mngxuma wobhedu. , ube ngumbulali obulalayo we-metallization yomngxuma.

II.Ibhodi yesekethe enamacala amabini ukuze kuqinisekiswe ukuba isekethe enamacala amabini inefuthe elithembekileyo lokuqhuba, kufuneka iqale isebenzise iingcingo kunye nokuwelda umngxuma woqhagamshelo kwiphaneli ephindwe kabini (oko kukuthi, inkqubo ye-metallization ngenxalenye yomngxuma), kwaye ukusika umgca woqhagamshelo ithiphu ephumayo inxalenye, ukuze ungalimazi isandla somsebenzisi, le yibhodi yokulungiselela iingcingo.

III.Hlaziya i-oveniizinto zokuwelda:

1. Ukucubungula inkqubo kuya kwenziwa ngokweemfuno zenkqubo yemizobo yezixhobo ezifuna ukubunjwa;Oko kukuthi, emva kweplagi yokuqala yeplastiki.

2. Emva kokubumba, imodeli yobuso be-diode kufuneka iphakame, kwaye ubude bezikhonkwane ezimbini akufanele bungahambelani.

3. Xa isixhobo esineemfuno ze-polarity sifakwe, nikela ingqalelo kwi-polarity ayiyi kufakwa ngasemva, kwaye i-roller edibeneyo yebhloko yecandelo, emva kokufakwa, nokuba i-vertical or recumbent device, ayiyi kuba ne-tilt ebonakalayo.

4. Amandla entsimbi yombane esetyenziselwa i-welding iphakathi kwe-25 ~ 40W, ukushisa kwentloko yentsimbi yombane kufuneka ilawulwe malunga ne-242 deG C, iqondo lokushisa liphezulu kakhulu intloko kulula "ukufa", iqondo lokushisa liphezulu kakhulu. iphantsi kakhulu ukunyibilikisa i-solder, ixesha le-welding lilawulwa kwi-3 ~ 4 imizuzwana.

5. ukuwelda okusesikweni ngokungqinelana nesixhobo ukusuka phezulu ukuya phezulu, ukusuka ngaphakathi ukuya ngaphandle umgaqo welding ukusebenza, ixesha welding ukuya inkosi, ixesha elide kakhulu iya kuba shushu isixhobo embi, kwakhona kuya kuba eshushu yobhedu camera ucingo phezu. ipleyiti yobhedu.

6. Ngenxa yokuba i-welding ephindwe kabini, ngoko kufuneka iphinde yenze isakhelo senkqubo yokubeka ibhodi yesiphaluka, ukuze ungacinezeli isixhobo esingezantsi.

7. emva kokugqitywa ukuwelda ibhodi yesekethe kufuneka kuqhutywe utshekisho olubanzi kuhlobo lokumakisha, khangela ukuvuza kwendawo ye-welding, uqinisekise ibhodi yesekethe emva kokuchithwa kwe-pin pin pruning, emva kokugeleza kwinkqubo elandelayo.

8. Kwintsebenzo ethile, kufuneka kwakhona ilandele ngokungqongqo imigangatho yenkqubo efanelekileyo yokusebenza, ukuqinisekisa umgangatho we-welding yeemveliso.

Ngophuhliso olukhawulezayo lobuchwepheshe obuphezulu, iimveliso ze-elektroniki ezinxulumene ngokusondeleyo noluntu zihlala zihlaziywa, uluntu lufuna ukusebenza okuphezulu, ubungakanani obuncinci, iimveliso zombane ezisebenza ngezinto ezininzi, ezibeka phambili iimfuno ezintsha zebhodi yesekethe.

K1830 SMT umgca wemveliso


Ixesha lokuposa: Sep-03-2021

Thumela umyalezo wakho kuthi: