mtundu watsopano wa zida zamagetsi zamagetsi-zapamwamba-zambiri zosinthira magetsi. Imaphatikiza zabwino za kusalala kwa mawonekedwe a silicon rectifiers komanso kusavuta kwa kayendetsedwe ka magetsi kwa zowongolera zoyendetsedwa ndi silicon. Ili ndi mphamvu zapamwamba kwambiri (mpaka 90% kapena kupitilira apo) komanso voliyumu yaying'ono kwambiri. Ndilolonjeza kukonzanso. Ukadaulo wopanga wathetsa vuto lamagetsi, ndipo mphamvu yosinthira mphamvu yayikulu kuchokera ku masauzande amp mpaka makumi masauzande a amps yalowa mu gawo lothandizira kupanga.
Imakonza mwachindunji ndikusefa gululi yamagetsi ya AC kudzera pa fyuluta ya EMI anti-electromagnetic interference line, imasintha magetsi a DC kukhala mafunde opitilira makwerero amakumi kapena mazana a kHz kudzera mu chosinthira, kudzipatula ndikuchepetsa mphamvu yamagetsi kudzera pama frequency apamwamba. thiransifoma, kenako kudzera pamagetsi apamwamba a Frequency kusefa linanena bungwe DC voteji. Pambuyo pa sampuli, kufananiza, kukulitsa ndi kuwongolera, kuyendetsa galimoto, chiŵerengero cha ntchito ya chubu chamagetsi mu chosinthira chimawongoleredwa kuti chipeze mphamvu yotulutsa mphamvu (kapena yotuluka panopa).
Chubu chosinthira chosinthira ma frequency apamwamba kwambiri chimagwira ntchito posinthira, kutayika kwamagetsi ndikocheperako, kuchita bwino kumatha kufika 75% mpaka 90%, voliyumu ndi yaying'ono, kulemera kwake kumakhala kopepuka, ndipo kulondola ndi kutulutsa kokwanira kuli bwino. kuposa silicon rectifier, yomwe ingakhale mumtundu wathunthu. Kukwaniritsa kulondola komwe kumafunikira popanga. Imakhala ndi mphamvu yodziteteza ndipo imatha kuyamba ndikuyimitsa mopanda katundu. Itha kulumikizidwa mosavuta ndi kompyuta, yomwe imabweretsa mwayi waukulu wopanga makina ndipo imagwiritsidwa ntchito kwambiri pamakampani opanga ma PCB.
Mawonekedwe
Pogwiritsa ntchito kuwongolera nthawi, kuyika kwake ndikosavuta komanso kosavuta, ndipo nthawi yogwira ntchito yabwino komanso yoyipa yaposachedwa imatha kukhazikitsidwa mosasamala malinga ndi zofunikira za plating.
Ili ndi zigawo zitatu zogwirira ntchito zosinthira zodziwikiratu, zabwino ndi zoyipa, ndikubwerera m'mbuyo, ndipo zimatha kusintha zokha polarity ya zomwe zimatulutsa.
Kupambana kwa periodic commutation pulse plating
1 Reverse pulse current imathandizira kugawa kwa makulidwe a zokutira, makulidwe a zokutira ndi yunifolomu, ndipo mulingo wake ndi wabwino.
2 Kusungunuka kwa anode kwa reverse pulse kumapangitsa kuti ma ayoni achitsulo pamtundu wa cathode akweze mwachangu, zomwe zimapangitsa kuti pakhale kugunda kwamphamvu kwapanthawiyo pakadutsa kachulukidwe ka cathode, ndipo kuchuluka kwamphamvu kwamphamvu kwapano kumapangitsa kupanga liwiro la phata la kristalo mofulumira kuposa kukula kwa kristalo, kotero Chophimbacho ndi chowuma komanso chowala, chokhala ndi porosity yochepa.
3. Reverse pulse anode stripping amachepetsa kwambiri kumamatira kwa zonyansa za organic (kuphatikiza chowunikira) mu zokutira, kotero kuti zokutira zimakhala ndi chiyero chambiri komanso kukana kwamphamvu kusinthika, komwe kumawonekera kwambiri mu plating ya siliva ya cyanide.
4. The n'zosiyana zimachitika panopa oxidize wa haidrojeni zili ❖ kuyanika, amene angathe kuthetsa hydrogen embrittlement (monga n'zosiyana zimachitika akhoza kuchotsa co-deposited haidrojeni pa electrodeposition wa palladium) kapena kuchepetsa nkhawa mkati.
5. The periodic reverse pulse current imasunga pamwamba pa gawo lopukutidwa kuti likhale logwira ntchito nthawi zonse, kotero kuti plating wosanjikiza ndi mphamvu yabwino yolumikizana ingapezeke.
6. Reverse pulse ndiwothandiza kuchepetsa makulidwe enieni a kusanjikizana ndikuwongolera cathode panopa. Chifukwa chake, magawo oyenera a pulse adzapititsa patsogolo kuchuluka kwa zokutira.
7 Mu plating system yomwe siyilola kapena zowonjezera pang'ono, kuyika kwapawiri kungathe kupeza zokutira zabwino, zosalala, komanso zosalala.
Zotsatira zake, zizindikiro zogwirira ntchito za ❖ kuyanika, monga kukana kutentha, kukana kuvala, kuwotcherera, kulimba, kukana dzimbiri, madulidwe, kukana kusinthika, ndi kusalala kwachulukirachulukira, ndipo zimatha kupulumutsa kwambiri zitsulo zamtengo wapatali (pafupifupi 20% -50). %) ndikusunga zowonjezera (monga Bright silver cyanide plating ndi pafupifupi 50% -80%)