Ngaba uyazi ukuba yintoni na umsebenzi PCB webhodi isisombululo emjelweni wechibi na? Eyona njongo ephambili yale kolawulo isicombululo PCB nesingxobo kukugcina onke amacandelo yemichiza ngaphakathi kuluhlu esicacisiweyo inkqubo. Mihlaba imichiza ngokwasemzimbeni ngenxa ukutyabeka ukuba kuqinisekise kuphela ngaphakathi parameters ezicaciswe kule nkqubo. Kukho iintlobo ezininzi zeenkqubo asetyenziselwa ulawulo, kuquka imichiza fractionation, uvavanyo emzimbeni, ixabiso ukuzimisela acid kwezisombululo, benokundileka oluthile sisombululo okanye ukuzimisela colorimetric. Ezi nkqubo zenzelwe ukuqinisekisa ukuchaneka, efanayo kunye nozinzo parameters webhate. Ukhetho lwendlela ulawulo ixhomekeke uhlobo ukugcwala.
Nangona indlela analytical eli ke linokuthenjwa ukuba ulawulo bath, akukho siqinisekiso ukuba ukutyabeka elungileyo ziya kufumaneka. Ngoko ke, kubalulekile ukuba babhenele iimvavanyo electroplating. Ngokukodwa, ezibhateni ezininzi electroplating ukongeza ongeziweyo organic ukuphucula ubume kunye nenkqubo ukutyabeka ukuze kuqinisekiswe iipropati zombane kunye zomatshini ezilungileyo ukutyabeka. Ezi kwezithako kunzima ukusebenzisa ngeendlela uhlalutyo lwekhemikhali, kwaye zahlulatywa zaza zathelekiswa kusetyenziswa iindlela zovavanyo electroplating, ezisetyenziswa isongezo ebalulekileyo ukulawula ubume eekhemikhali webhate. ulawulo ezongezelelweyo ziquka nokuzimisela kwamanqanaba additive kunye uhlengahlengiso, ukuhluza kunye ukusulungekiswa. Ezi zinto kufuneka ukuba ngononophelo "yathi," ukususela wazaleka panel test bath Holstein, kwaye yabe, lacazulula kwaye yekhalenda kwipleyiti lonikezelo ukutyabeka karhulumente ukuba ukufikelela uphuculo okanye uphuculo kule nkqubo. Step njongo.
Umzekelo, imida ye dispersibility ophezulu, aphezulu acid eqaqambileyo nezisezantsi nesingxobo lobhedu bath kuyalungiswa yi imithi ukusonga; ukongeza uhlalutyo lwekhemikhali, umxube ubhedu yemichiza nayo phantsi ixabiso pH acid okanye ratio kunye Umbala umlinganiselo, njalo njalo Ukuba ukwakheka yemichiza kukuba ngaphakathi inkqubo uluhlu emva kocazululo, kuyimfuneko ukuba anikele ingqalelo enkulu abacombululi nezinye iparameters kunye nemeko phezu zeendawana ukuba ngumfanekiswana, ezifana lobushushu sisombululo nesingxobo, loxinano ngoku, indlela owandayo kunye nempembelelo kukarhulumente yonyango phezu zeendawana kwi webhate. Ngokukodwa, kuyimfuneko ukulawula ezingaphiliyo ukungcola-zinc le acid isisombululo nesingxobo ubhedu eqaqambileyo, amakhulu ixabiso iinkcukacha inkqubo avumelekile, kwaye ngqo ichaphazela umphezulu imo esibekwa zobhedu; i tin-elikhokelayo ingxubevange bath isisombululo kufuneka ukulawula ngokungqongqo okuqulethwe ubumdaka zobhedu, ezifana umlinganiselo othile uya kuchaphazela wettability kunye weldability kunye nokhuselo tin-elikhokelayo ingxubevange ngeso lenyama.
Okokuqala, PCB nesingxobo test
Ulawulo Umgaqo webhate nesingxobo kufuneka ibandakanye umchiza ukwakhiwa iphambili webhate. Ukuphumeza lo umgwebo echanekileyo, phambili kwaye zithembekile izixhobo zovavanyo kunye neendlela zohlalutyo ziyafuneka. Ezinye maqula Kwakhona kufuneka usebenzise iindlela abangabancedani ezifana yokulinganisa amandla awo ezithile kunye nexabiso acid (PH). Ukuze bagcine ngqo umphezulu imo ukutyabeka, inkoliso abenzi PCB ngoku lisebenzise indlela test groove Holstein kaThixo. Inkqubo yovavanyo ethile kukuba zithambekele kwiqela lenjongo uvavanyo nge-37 ° nobude efanayo icala elide, kunye anode nkqo kwicala kwicala elide. Ukutshintsha anode-to-cathode kumgama iya kuba igeyiji rhoqo ecaleni cathode, kangangokuba ngoku ecaleni uvavanyo ipleyiti esoloko itshintsha. Ukususela imeko lonikezelo yangoku test nembasa, kunokwenzeka ukuba ukufumanisa ngokwenzululwazi ukuba ngaba loxinano yangoku ezisetyenziswa ngokuhlamba nesingxobo phakathi kuluhlu esicacisiweyo inkqubo. Isiphumo ngqo isiqulatho additive kwi loxinano yangoku kunye nefuthe kumgangatho kumphezulu ukutyabeka nayo saphawula.
Okwesibini, i-PCB uyigobayo indlela igciwane:
Le ndlela Iwendawo kuba kugqiba uluhlu olubanzi, ethi ibeke i ekujikeni, imiphezulu zayo nomphezulu zikhabane malilungiselelwe isiphumo Heating ngenxa imilo nkqo. Ukusuka oku, kufuneka ihlolwe kwaye ukukwazi mabasasazwe uhla yangoku.
Okwesithathu, umgwebo lako:
Esebenzisa test ndlela zikhankanywe ngasentla, kunokwenzeka ukuba bagwebe ngumkhuba ingenzeka kummandla ophantsi yangoku uvavanyo imbasa ngexesha nesingxobo yi ukurekhodwa ngqo uvavanyo nembasa, kwaye kugwetywa ukuba additive kufuneka ukuba afakwe; kummandla omkhulu ngelo xesha, nesingxobo luyenziwa. Iziphene ezifana komhlaba rhabaxa, blackening kunye nenkangeleko mgaqweni Inokwenzeka, nto leyo ibonisa ukuba ukufakwa ubumdaka zesinyithi kwiQela ngokuhlamba echaphazela ngqo umphezulu imo ukutyabeka. Ukuba kumphezulu ukutyabeka leyo eyenza ukuba, oko kuthetha ukuba akhululeke kumphezulu kukuba kufuneka licuthwe. Nesingxobo Umaleko umonakalo rhoqo ebonisa izixa ngokugqithiseleyo kwezithako kunye yokubola sokuhlambela. izenzakalo abonisa ngokupheleleyo imfuneko uhlalutyo ngexesha lokulungiswa ukuze ukwakheka eekhemikhali webhate uyahlangabezana parameters inkqubo echazwe kule nkqubo. additive abangaphezu kwemfuneko kunye ibolile izinto eziphilayo kufuneka baphathwe, yahluzwa hlamba usebenzisa carbon isebenza okanye ezifana.
Ngokufutshane, nangona ukusetyenziswa kobugcisa computer ukulawula ngokuzenzekelayo ngabanye ngokuphuhliswa inzululwazi nobugcisa, kodwa kufuneka sivavanywe ngokusebenzisa uncedo, ukuze kuphunyezwe inshorensi kabini. Ngoko ke, iindlela zokulawula ezisetyenziswa ngokuqhelekileyo ngaphambili kufuneka ukuba kusetyenziswa okanye uphando kunye nophuhliso iindlela zovavanyo ezintsha kunye nezixhobo ukwenza PCB nesingxobo nokwaleka inkqubo egqibeleleyo ngakumbi.
Yongmingsheng i China pcb umenzi , bamkelekile ukuba baqhagamshelane nathi!
ixesha Post: Jul-20-2019