Ibraze intloko isila

Ngokwamanqaku ahlukeneyo okunyibilika kwe-solder, i-brazing inokwahlulwa ibe yi-solder ethambileyo kunye ne-solder enzima.

Ukusoda

I-solder ethambileyo: indawo yokunyibilika kwe-solder ye-solder ethambileyo ingaphantsi kwe-450 ° C, kwaye amandla adibeneyo aphantsi (ngaphantsi kwe-70 MPa).

I-soldering ethambileyo isetyenziselwa ukuwelda kwezixhobo eziqhubayo, ezingangeni moya kunye nezingangeni manzi kumashishini ombane kunye nokutya.I-Tin welding ene-tin-lead alloy njengentsimbi yokuzalisa isetyenziswa kakhulu.I-solder ethambileyo ngokubanzi idinga ukusebenzisa i-flux ukususa ifilimu ye-oxide kunye nokuphucula ukumanzi kwe-solder.Kukho iintlobo ezininzi ze-soldering fluxes, kwaye isisombululo sotywala se-rosin sihlala sisetyenziselwa ukuthengisa kwishishini le-elektroniki.Intsalela yale flux emva kwe-welding ayinayo impembelelo ephazamisayo kwi-workpiece, ebizwa ngokuba yi-non-corrosive flux.I-flux esetyenziselwa ukudibanisa ubhedu, isinyithi kunye nezinye izinto zenziwe nge-zinc chloride, i-ammonium chloride kunye ne-vaseline.Xa udibanisa i-aluminium, i-fluoride kunye ne-fluoroborate zisetyenziswa njenge-brazing fluxes, kunye ne-hydrochloric acid kunye ne-zinc chloride nazo zisetyenziswa njenge-brazing fluxes.Intsalela yale misinga emva kokuwelda iyadleka, ebizwa ngokuba yi-corrosive fluxes, kwaye kufuneka icocwe emva kwe-welding.

Ukugqabhuka

I-Brazing: indawo yokunyibilika yentsimbi yokuqhafaza ingaphezulu kwe-450 ° C, kwaye amandla adibeneyo aphezulu (ngaphezulu kwe-200 MPa).

Amalungu eBrazed anamandla aphezulu, kwaye abanye banokusebenza kwiqondo lokushisa eliphezulu.Kukho iintlobo ezininzi zesinyithi sokuzalisa i-brazing, kunye ne-aluminium, isilivere, ubhedu, i-manganese kunye ne-nickel-based brazing filler metal zezona zisetyenziswa kakhulu.Isiseko se-aluminiyam yentsimbi sihlala sisetyenziselwa ukubethelwa kweemveliso ze-aluminium.Ii-solder ezisekelwe kwisilivere kunye ne-copper-based ziqhelekileyo zisetyenziselwa ukubethelwa kwentsimbi kunye neentsimbi.I-Manganese-based kunye ne-nickel-based solders zisetyenziselwa ukuwelda intsimbi engatyiwayo, intsimbi enganyangekiyo kubushushu kunye neendawo ze-superalloy ezisebenza kumaqondo obushushu aphezulu.I-Palladium-based, i-zirconium-based kunye ne-titanium-based solders zisetyenziswa ngokuqhelekileyo kwi-welding metal refractory ezifana ne-beryllium, i-titanium, i-zirconium, i-graphite kunye ne-ceramics.Xa ukhetha isinyithi sokuzalisa, iimpawu zesiseko sesinyithi kunye neemfuno zokusebenza ngokubambisana kufuneka ziqwalaselwe.I-Brazing flux idla ngokuqulunqwa ngeekloridi kunye ne-fluorides yesinyithi se-alkali kunye nesinyithi esinzima, okanye i-borax, i-boric acid, i-fluoroborate, njl., enokuthi yenziwe ibe ngumgubo, unamathisele kunye nolwelo.I-lithium, i-boron kunye ne-phosphorus nazo zongezwa kwezinye ii-solders ukunyusa amandla azo okususa ifilimu ye-oxide kunye nokumanzisa.Coca i-flux eseleyo emva kwe-welding ngamanzi afudumeleyo, i-citric acid okanye i-oxalic acid.

Qaphela: Indawo yoqhagamshelwano yesiseko sesinyithi kufuneka ihlambuluke, ngoko ke kufuneka kusetyenziswe i-flux.Umsebenzi we-brazing flux kukususa i-oxides kunye nokungcola kwe-oyile kumphezulu wesiseko sesinyithi kunye ne-filler metal, ukukhusela indawo yokudibanisa phakathi kwetsimbi yokuzalisa kunye nesiseko sesinyithi kwi-oxidation, kunye nokwandisa ukumanzi kunye ne-capillary fluidity yensimbi yokuzalisa.Indawo yokunyibilika ye-flux iya kuba ngaphantsi kwe-solder, kwaye ukubola kwentsalela ye-flux kwisiseko sesinyithi kunye nokudibanisa kuya kuba ngaphantsi.I-flux esetyenziswa ngokuqhelekileyo kwi-soldering ethambileyo yi-rosin okanye i-zinc chloride isisombululo, kwaye i-flux esetyenziswa ngokuqhelekileyo yokugcoba ngumxube we-borax, i-boric acid kunye ne-alkaline fluoride.

Isicelo kunye nokuhlelwa kweempawu kunye nosasazo

I-Brazing ayifanelekanga kwi-welding yezakhiwo zetsimbi ngokubanzi kunye neendawo ezinzima kunye neziguquguqukayo zomthwalo.Isetyenziselwa ikakhulu ukwenza izixhobo ezichanekileyo, izixhobo zombane, iikhomponenti zetsimbi ezingafaniyo kunye nezakhiwo zepleyiti ezintsonkothileyo, njengamacandelo esandwich, izakhiwo zekhekheba lobusi, njl. njl.Ngethuba lokuqhawula, emva kokuba indawo yokudibanisa ye-workpiece edibeneyo ihlanjululwe, ihlanganiswe ngendlela yokudibanisa, kwaye isinyithi sokuzalisa sibekwe kufuphi ne-gap edibeneyo okanye ngokuthe ngqo kwi-gap edibeneyo.Xa i-workpiece kunye ne-solder ifudunyezwa kwiqondo lokushisa elingaphezulu kancinci kunokushisa okunyibilikayo kwe-solder, i-solder iya kunyibilika kwaye ifake umphezulu we-weldment.Intsimbi yokuzalisa i-liquid iya kuhamba kwaye isasaze kunye ne-seam ngoncedo lwesenzo se-capillary.Ngoko ke, isinyithi esisingqinisiso kunye nentsimbi yokuzalisa iyachithwa kwaye ingena ngaphakathi komnye nomnye ukuze yenze i-alloy layer.Emva kwe-condensation, i-joint brazed yenziwa.

I-Brazing isetyenziswe ngokubanzi kumatshini, umbane, izixhobo, irediyo kunye namanye amasebe.Izixhobo zeCarbide, iibhithi zokomba, iifreyimu zebhayisekile, abatshintshisi bobushushu, iiconduits kunye nezikhongozeli ezahlukeneyo;Ekwenziweni kwee-microwave waveguides, iityhubhu ze-elektroniki kunye nezixhobo ze-electronic vacuum, ukubrawuza yeyona ndlela yokudibanisa enokwenzeka.

Iimpawu zebrazing:

Ivili lokusila idayimani eBrazed

Ivili lokusila idayimani eBrazed

(1) Iqondo lokushisa lokutshisa i-brazing liphantsi, i-joint igudileyo kwaye ithe tyaba, utshintsho lwe-microstructure kunye neempawu zomatshini zincinci, i-deformation incinci, kunye nobukhulu be-workpiece buchanekile.

(2) Iyakwazi ukuwelda iintsimbi ezahlukeneyo kunye nemathiriyeli ngaphandle kwemiqathango engqongqo kumahluko obunzima bomsebenzi.

(3) Ezinye iindlela zokugada zinokudibanisa iiwelds ezininzi kunye namalungu ngaxeshanye, kunye nemveliso ephezulu.

(4) Izixhobo zokutshisa zilula kwaye utyalo-mali lwemveliso luphantsi.

(5) Amandla adibeneyo aphantsi, ukuxhathisa ubushushu akubi, kwaye iimfuno zokucoca ngaphambi kokuba zidibanise zingqongqo, kwaye ixabiso le-solder liyabiza.