Izinto ezidinga ukunakwa:

Iphepha elingenayo i-sulphur liyiphepha elikhethekile lenqubo yokwelashwa kwe-PCB, eligcinwa endaweni yokugcina impahla epholile futhi enomoya, epakishwe kahle, kude nelanga eliqondile, kude nemithombo yomlilo nemithombo yamanzi, futhi ivikelwe ekushiseni okuphezulu, umswakama kanye nokuxhumana uketshezi (ikakhulukazi i-asidi ne-alkali)!

imininingwane

Isisindo: 60g, 70g, 80g, 120g.
Inani le-Orthogonality: 787*1092mm.
Inani elikhulu: 898*1194mm.
Ingasikwa ngokwezidingo zekhasimende.

Izimo zesitoreji nempilo yeshalofu.

Gcina endaweni eyomile nehlanzekile ku-18℃ ~ 25℃, kude nemithombo yomlilo nemithombo yamanzi, gwema ukukhanya kwelanga eliqondile, futhi uvale iphakheji ngeshalofu lokuphila konyaka owodwa.

Imingcele yezobuchwepheshe yemikhiqizo.

1. isulfure dioxide ≤50ppm.
2. Ukuhlolwa kwe-adhesive tape: indawo engaphezulu ayinakho ukuwela kwezinwele.

Isicelo

Isetshenziswa kakhulu emaphaketheni ane-silver-plated, njengamabhodi wesekethe, ama-LED, amabhodi wesekethe, amatheminali ehadiwe, izindatshana zokuvikela ukudla, ukupakishwa kwengilazi, ukupakishwa kwehadiwe, ukuhlukaniswa kwamapuleti ensimbi engagqwali, njll.

Kungani udinga iphepha elingenaso isibabule?

Ngaphambi kokuba sikhulume ngokuthi kungani kusetshenziswa iphepha elingenaso isibabule, kufanele sikhulume ngento ethi “PCB” (ibhodi lesifunda eliphrintiwe) elivikelwe ngephepha elingenasulfure-PCB ukusekelwa kwezingxenye ze-elekthronikhi kanye nenye yezingxenye ezibalulekile ku-elekthronikhi. imboni.Cishe lonke uhlobo lwesisetshenziswa se-elekthronikhi, kusukela kumawashi e-elekthronikhi nezibali kuya kumakhompuyutha nemishini yokuxhumana, idinga i-PCB ukuze ibone ukuxhumana kukagesi phakathi kwezingxenye ezihlukahlukene.

Umzimba oyinhloko we-PCB uyithusi, futhi ungqimba lwethusi lusabela kalula nomoya-mpilo osemoyeni ukuze kukhiqizwe i-cuprous oxide ensundu ngokumnyama.Ukuze ugweme i-oxidation, kunenqubo yokubeka isiliva ekukhiqizeni i-PCB, ngakho-ke ibhodi le-PCB libizwa nangokuthi ibhodi le-silver deposition.Inqubo yokubeka isiliva isiphenduke enye yezindlela zokugcina zokwelapha ezingaphezulu kwe-PCB ephrintiwe.

Ibhodi lesifunda lokupakisha iphepha elingenasibabule, kodwa noma inqubo yokubeka isiliva yamukelwa, ayinawo amaphutha ngokuphelele:

Kukhona ukuhlobana okukhulu phakathi kwesiliva nesibabule.Lapho isiliva ihlangana negesi ye-hydrogen sulfide noma ama-ion esibabule emoyeni, kulula ukukhiqiza into ebizwa ngokuthi i-silver sulfide (Ag2S), ezongcolisa i-bonding pad futhi ithinte inqubo yokushisela elandelayo.Ngaphezu kwalokho, i-sulfide yesiliva inzima kakhulu ukuyichitha, okuletha ubunzima obukhulu ekuhlanzeni.Ngakho-ke, onjiniyela abahlakaniphile baye baqhamuka nendlela yokuhlukanisa i-PCB kuma-ion sulphur emoyeni futhi banciphise ukuxhumana phakathi kwesiliva nesibabule.Iphepha elingenaso isibabule.

Ukufingqa, akunzima ukuthola ukuthi inhloso yokusebenzisa iphepha elingenayo isulfure imi kanje:

Okokuqala, iphepha elingenaso isibabule ngokwalo aliqukethe isibabule futhi ngeke lisabele ngesendlalelo sokubeka esisiliva endaweni ye-PCB.Ukusebenzisa iphepha elingenaso isibabule ukugoqa i-PCB kunganciphisa ngempumelelo ukuxhumana phakathi kwesiliva nesibabule.

Okwesibili, iphepha elingenaso isibabule nalo lingadlala indima yokuzihlukanisa, ligweme ukusabela phakathi kongqimba lwethusi ngaphansi kongqimba lwe-silver deposition kanye nomoya-mpilo osemoyeni.

Kusixhumanisi sokukhetha iphepha elingenaso isibabule, empeleni kukhona amaqhinga.Isibonelo, iphepha elingenaso isibabule lidinga ukuhlangabezana nezimfuneko ze-ROHS.Iphepha eliphezulu elingenaso isibabule aligcini nje ngokuba nesibabule, kodwa futhi lisusa ngokuqinile izinto ezinobuthi njenge-chlorine, i-lead, i-cadmium, i-mercury, i-hexavalent chromium, i-polybrominated biphenyls, i-polybrominated diphenyl ethers, njll., ehlangabezana ngokugcwele nezidingo ze-EU. izindinganiso.

Mayelana nokumelana nokushisa, iphepha le-logistics linempahla ekhethekile yokumelana nokushisa okuphezulu (cishe ama-degrees Celsius angaba ngu-180), futhi inani le-pH lephepha alithathi hlangothi, elingavikela kangcono izinto ze-PCB kusuka ku-oxidation nokuphuzi.

Lapho sipakisha ngephepha elingenaso isibabule, kufanele sinake imininingwane, okungukuthi, ibhodi le-PCB elinobuchwepheshe obucwiliswa ngesiliva kufanele lihlanganiswe ngokushesha ngemva kokukhiqizwa, ukuze kuncishiswe isikhathi sokuxhumana phakathi komkhiqizo nomoya.Ngaphezu kwalokho, lapho upakisha ibhodi le-PCB, amagilavu ​​angenaso isibabule kufanele agqokwe futhi akumele athinte indawo ene-electroplated.

Ngesidingo esikhulayo se-PCB engenamthofu e-Europe naseMelika, i-PCB enobuchwepheshe bokufakwa kwesiliva nethani isiphenduke inkambiso emakethe, futhi iphepha elingenaso isibabule lingaqinisekisa ngokugcwele ikhwalithi ye-PCB yesiliva noma yethani.Njengohlobo lwephepha lezimboni eliluhlaza, iphepha elingenaso isibabule lizothandwa kakhulu emakethe, futhi libe izinga lokupakisha le-PCB embonini.

Izizathu zokusebenzisa iphepha elingenaso isibabule.

Kufanele ugqoke amagilavu ​​angenaso isibabule uma uthinta ibhodi elinesilver-plated.Ipuleti lesiliva kufanele lihlukaniswe kwezinye izinto ngephepha elingenaso isibabule ngesikhathi lihlolwa futhi liphathwa.Kuthatha amahora angu-8 ukuqeda ibhodi lokucwila elisiliva kusukela ngesikhathi sokuphuma emugqeni wokucwila oyisiliva kuya esikhathini sokupakisha.Uma upakisha, ibhodi le-silver plating kufanele lihlukaniswe nesikhwama sokupakisha ngephepha elingenaso isibabule.

Kukhona ukuhlobana okukhulu phakathi kwesiliva nesibabule.Lapho isiliva itholana negesi ye-hydrogen sulfide noma ama-ion esibabule emoyeni, kulula ukwakha usawoti wesiliva ongancibiliki kakhulu (Ag2S) (usawoti oyisiliva uyingxenye eyinhloko ye-argentite).Lolu shintsho lwamakhemikhali lungenzeka ngenani elincane kakhulu.Ngenxa yokuthi isiliva sulfide inombala ompunga-omnyama, ngokushuba kokusabela, i-silver sulfide iyakhula futhi ishube, futhi umbala ongaphezulu wesiliva uyashintsha kancane kancane usuka komhlophe uye kophuzi ube mpunga noma ube mnyama.

Umehluko phakathi kwephepha elingenaso isibabule nephepha elivamile.

Iphepha livame ukusetshenziswa ekuphileni kwethu kwansuku zonke, ikakhulukazi nsuku zonke lapho singabafundi.Iphepha ishidi elincanyana elenziwe ngefayibha yezitshalo, elisetshenziswa kakhulu.Iphepha elisetshenziswa emikhakheni ehlukene lihlukile, njengephepha lezimboni nephepha lasendlini.Iphepha lezimboni elifana nephepha lokuphrinta, iphepha elingenaso isibabule, iphepha elimunca uwoyela, iphepha lokugoqa, i-kraft paper, iphepha elingangenwa uthuli, njll., namaphepha asendlini njengezincwadi, ama-napkins, amaphephandaba, iphepha lasendlini yangasese, njll. Ngakho namuhla, ake sichaze umehluko phakathi kwephepha lezimboni elingenaso isibabule nephepha elivamile.

Iphepha elingenaso isibabule

Iphepha elingenaso isibabule liyiphepha elikhethekile lokugwedla elisetshenziswa kwinqubo ye-PCB yokwenza isiliva kubakhiqizi bebhodi lesifunda ukugwema ukusabela kwamakhemikhali phakathi kwesiliva nesibabule emoyeni.Umsebenzi wawo ukufaka isiliva ngamakhemikhali futhi ugweme ukusabela kwamakhemikhali phakathi kwesiliva nesibabule emoyeni, okuholela ekuphuzini.Ngaphandle kwesibabule, kungagwema ukungalungi okubangelwa ukusabela phakathi kwesulfure nesiliva.

Ngesikhathi esifanayo, iphepha elingenaso isibabule liphinde ligweme ukusabela kwamakhemikhali phakathi kwesiliva emkhiqizweni we-electroplated nesibabule emoyeni, okuholela ekubeni umkhiqizo ube phuzi.Ngakho-ke, lapho umkhiqizo usuqediwe, umkhiqizo kufanele uhlanganiswe nephepha elingenaso isibabule ngokushesha ngangokunokwenzeka, futhi amagilavu ​​angenaso isibabule kufanele agqokwe lapho uthintana nomkhiqizo, futhi indawo ene-electroplated akufanele ithintwe.

Izici zephepha elingenaso isibabule: iphepha elingenaso isibabule lihlanzekile, alinalo uthuli futhi alinachips, lihlangabezana nezimfuneko ze-ROHS, futhi aliqukethe isulfure (S), i-chlorine (CL), i-lead (Pb), i-cadmium (Cd), i-mercury (Hg), i-hexavalent chromium (CrVI), ama-biphenyl ane-polybrominated nama-diphenyl ethers enziwe nge-polybrominated.Futhi ingasetshenziswa kangcono embonini ye-electronic board board ye-PCB kanye nemboni ye-hardware electroplating.

Umehluko phakathi kwephepha elingenaso isibabule nephepha elivamile.

1. Iphepha elingenaso isibabule lingagwema ukusabela kwamakhemikhali phakathi kwesiliva emikhiqizweni ye-electroplated nesibabule emoyeni.Iphepha elivamile alifaneleki iphepha le-electroplating ngenxa yokungcola okuningi.
2. Iphepha elingenayo isulfure lingavimba ngempumelelo ukusabela kwamakhemikhali phakathi kwesiliva ku-pcb nesibabule emoyeni lapho lisetshenziswa embonini ye-pcb.
3. Iphepha elingenayo isulfure lingavimbela uthuli nama-chips, futhi ukungcola okungaphezulu kwemboni ye-electroplating kuzothinta umphumela we-electroplating, futhi ukungcola kumjikelezo we-pcb kungase kuthinte ukuxhumana.

Iphepha elivamile lenziwa ngokuyinhloko ngemicu yezitshalo, njengokhuni notshani.Izinto ezisetshenziswayo zephepha elingenaso isibabule aziyona imicu yezitshalo kuphela, kodwa futhi nemicu engezona isitshalo, njengemicu yokwenziwa, imicu yekhabhoni nemicu yensimbi, ukuze kuqedwe isulfure, i-chlorine, umthofu, i-cadmium, i-mercury, i-chromium enehexavalent, i-polybrominated. ama-biphenyl nama-polybrominated diphenyl ethers avela ephepheni.Ukuze ulungise ukushiyeka okuthile kwephepha lesisekelo, kunenzuzo ukuthuthukisa ikhwalithi yephepha futhi ufeze inhloso yokuthuthukisa inhlanganisela.