Ulu olo olo
Ulu olo olo
Fa'amatalaga Autu
E tusa ai ma vaega faʻafefete eseese o solder, brazing e mafai ona vaevaeina i solder vaivai ma solder malosi.
Solderina
Soso vaivai: o le mea faʻafefeteina o le solder mo solder vaivai e maualalo ifo i le 450 ° C, ma le malosi faʻatasi e maualalo (itiiti ifo i le 70 MPa).
O le sotini vaivai e tele lava ina fa'aaogaina mo le fa'apipi'iina o masini fa'atonu, ea ma le vai i totonu o pisinisi fa'aeletoroni ma mea'ai.u'amea u'amea ma u'amea ta'ita'i pei u'amea faatumu e sili ona fa'aaogaina.E masani ona manaʻomia e le solder vaivai le faʻaogaina o le flux e aveese ai le oxide film ma faʻaleleia le susu o le solder.E tele ituaiga o solder fluxes, ma rosin alcohol solution e masani ona faʻaaogaina mo le faʻapipiʻiina i alamanuia faaeletonika.O le toega o lenei flux pe a uma le uelo e leai se aafiaga corrosive i luga o le mea faigaluega, lea e taʻua o le non-corrosive flux.O le faʻaogaina o le faʻaaogaina mo le faʻapipiʻiina o kopa, uʻamea ma isi mea e aofia ai le zinc chloride, ammonium chloride ma le vaseline.Pe a uelo alumini, fluoride ma fluoroborate o loʻo faʻaaogaina e fai ma faʻafefe faʻafefe, ma hydrochloric acid ma zinc chloride o loʻo faʻaaogaina foi e fai ma faʻafefe.O le toega o nei fusuaga pe a uma le uelo e pala, e ta'ua o le pala, ma e tatau ona faamamaina pe a uma ona uelo.
Fa'asalaina
Brazing: o le mea liusuavai o le uʻamea faʻatumu uʻamea e maualuga atu i le 450 ° C, ma le malosi faʻatasi e maualuga atu (sili atu i le 200 MPa).
E maualuga le malosi o sooga u'amea, ma o nisi e mafai ona galue i le vevela maualuga.E tele ituaiga o u'amea fa'atumu, ma alumini, siliva, kopa, manganese ma nickel-based brazing filler metals e sili ona fa'aaogaina.E masani ona faʻaaogaina le uʻamea faʻatumu faʻavae alumini mo oloa faʻapipiʻi alumini.E masani ona fa'aogaina solder e fa'avae i le siliva ma le 'apamemea mo le fa'amalo o vaega 'apamemea ma u'amea.O solder e fa'avae i le manganese ma fa'avae nickel e tele lava ina fa'aogaina e u'u ai le uamea, uamea fa'afefe vevela ma vaega sili ona lelei e galue i le vevela maualuga.Palladium-based, zirconium-based ma titanium-based solders e masani ona faʻaaogaina mo uʻamea refractory metals e pei o beryllium, titanium, zirconium, graphite ma ceramics.Pe a filifilia le uʻamea faʻatumu, o uiga o le uʻamea faavae ma manaʻoga mo le faʻatinoga faʻatasi e tatau ona mafaufauina.Brazing flux e masani ona aofia ai chlorides ma fluorides o alkali metals ma mamafa metals, po o borax, boric acid, fluoroborate, ma isi, lea e mafai ona faia i le pauta, faapipii ma vai.Lithium, boron ma phosphorus ua faaopoopo foi i nisi solder e faaleleia ai lo latou gafatia e aveese oxide ata ma susu.Fa'amama le vai o totoe pe a uma ona uelo i le vai mafanafana, citric acid po'o le oxalic acid.
Fa'aaliga: E tatau ona mama le pito fa'afeso'ota'i o le u'amea fa'avae, o lea e tatau ai ona fa'aoga le fa'afefe.O le galuega a le brazing flux o le aveese lea o oxides ma suauu eleelea i luga o le uʻamea faavae ma le faʻatumu uʻamea, puipuia le faʻafesoʻotaʻi i le va o le uʻamea faʻatumu ma le uʻamea faavae mai le faʻamaʻiina, ma faʻateleina le susu ma le capillary fluidity o le uʻamea faʻatumu.O le mea faʻafefeteina o le faʻafefe e tatau ona maualalo ifo nai lo le solder, ma o le aʻa o le faʻafefe o totoe i luga o le uʻamea faavae ma le sooga e tatau ona itiiti.O le fa'aoga masani mo le sosolo vaivai o le rosin po'o le zinc chloride solution, ma o le fa'aogaina masani mo le fa'apalapala o se fa'afefiloi o borax, boric acid ma alkaline fluoride.
Fa'aoga ma fa'ata'ita'iga ma fa'asalalauga
Brazing e le talafeagai mo le ueloina o fausaga uʻamea lautele ma mamafa ma malosi vaega uta.E masani lava ona faʻaaogaina mo le gaosiga o meafaifaʻaili saʻo, vaega eletise, vaega uʻamea eseese ma fausaga ipu manifinifi lavelave, e pei o vaega sanuisi, fausaga faʻapipiʻi meli, ma isi. E masani ona faʻaaogaina mo brazing eseese uaea eseese ma meafaigaluega carbide sima.I le taimi o le faʻamalosi, pe a uma ona faʻamamaina le faʻafesoʻotaʻi o le mea faigaluega faʻapipiʻi, e faʻapipiʻiina i le tulaga o le faʻapipiʻiina, ma tuʻu le uamea faʻatumu i tafatafa o le va faʻatasi pe tuusaʻo i totonu o le va faʻatasi.Pe a vevela le mea faigaluega ma le solder i se vevela e sili atu le maualuga nai lo le vevela faʻafefeteina o le solder, o le a faʻafefeteina le solder ma faʻafefeteina le pito i luga ole uelo.O le u'amea fa'atumu vai o le a tafe ma sosolo i luga o le su'isu'i fa'atasi ai ma le fesoasoani a le ga'o ga'o.O le mea lea, o le u'amea u'amea ma u'amea fa'atumu e fa'amavae ma fa'aulu i totonu o le tasi ma le isi e fai ai se mea fa'apipi'i.A maeʻa le faʻafefe, e faʻatupu le sooga faʻafefe.
Brazing ua faʻaaogaina lautele i masini, eletise, meafaigaluega, leitio ma isi matagaluega.Mea faigaluega carbide, vili vili, faʻavaa uila, faʻafefe vevela, alavai ma koneteina eseese;I le gaosiga o microwave waveguides, paipa eletise ma masini masini eletise, brazing e na o le pau lea o le auala e mafai ona fesoʻotaʻi ai.
Aafiaga o brazing:
Uli fa'ameamea taimane brazed
Uli fa'ameamea taimane brazed
(1) E maualalo le vevela o le vevela, o le sooga e lamolemole ma mafolafola, o le suiga o le microstructure ma mea faʻainisinia e laʻititi, o le deformation e laʻititi, ma o le mea faigaluega e saʻo.
(2) E mafai ona ueloina u'amea eseese ma mea e aunoa ma le fa'atapula'aina o le eseesega mafiafia o le mea faigaluega.
(3) O nisi auala brazing e mafai ona ueloina le tele o uelo ma sooga i le taimi e tasi, ma le maualuga o le gaosiga.
(4) O meafaigaluega faʻamalosi e faigofie ma e maualalo le faʻafaigaluegaina o gaosiga.
(5) O le malosi faʻatasi e maualalo, o le vevela e le lelei, ma o manaʻoga mo le faʻamamaina aʻo leʻi faʻapipiʻiina e faʻamaoni, ma o le tau o le solder e taugata.
