Iintlobo zeSolder Flux

Izixhobo zokugada zizinto ezibalulekileyo ze-electronics. I-Solder ayisoloko idibanise kakuhle kwizinto ezinokubangela ukudibanisa okubi, izikhonkwane eziqhotyoshelweyo, okanye akukho nxu lumano. Isisombululo sokubambisa imiba enxulumene nokusebenzisa i-agent esebenzayo kunye nobushushu obufanelekileyo.

Yintoni iFlux?

Xa i-solder iyancibilika kwaye idibanisa phakathi kwezinto zombini zetsimbi, yenzeni i-metallurgical bond ngokusebenza ngamakhemikhali kunye nezinye izakhiwo zensimbi. Ubundlelwane obuhle bufuna izinto ezimbini, i-solder ehambisana ne-metallurgic ehambisanayo neesinyithi ziboshwe kwaye zinezinto ezintle zetsimbi, zingenakho i-oxides, uthuli, kwaye zinokuthintela ukudibana. I-Grime kunye nothuli kungasuswa kalula ngokucoca okanye ukukhuselwa ngamanqaku okugcina okufanelekileyo. Izixhasi, ngakwelinye icala zidinga enye indlela.

Iifom ze-oxides malunga nantoni zonke izitye xa i-oksijini isabela ngetsimbi. Ngesinyithi, i-oxidation ibizwa ngokuba yi-rust, kodwa kwenzeka kwi-tin, i-aluminium, ithusi, isilivere, kunye naso sonke isinyithi esisetyenziswa kwi-elektroniki. Iifutha zenze i-soldering nzima okanye ingenakwenzeka, ukukhusela i-metallurgical bond kunye ne-solder. I-oxidization iyenzeka yonke ixesha, kodwa iyenzeka kakhulu ngokukhawuleza kumaqondo aphezulu aphezulu, afana xa i-soldering Flux ihlambulula izitye zendawo kunye neempembelelo ze-oxide, ezishiya indawo ebanjwe kwisibophelelo esihle se-solder. I-Flux ihlala phezu kweso sinyithi ngelixa i-soldering ebangela ukuba i-oxides eyongezelelweyo ingabikho ngenxa yokushisa okuphezulu. Njengoko i-solder, kukho iintlobo ezininzi ze-solder, ngasinye sinomsebenzi obalulekileyo kunye nemida ethile.

Iintlobo zeFlux

Kwiimfuno ezininzi, ukuhluma okufakwe kwinqanaba le-wire solder kwanele. Nangona kunjalo, kukho izicelo ezininzi apho ukongezwa okongeziweyo kunenzuzo kakhulu, njengokwenyuka kwe-surface soldering kunye nokuchithwa. Kuzo zonke iimeko, i-flux engcono kakhulu ukuyisebenzisa yinto encinci ye-acidic (encinci enobudlova) eya kusebenza kwi-oxide kumacandelo kwaye ibangele ubhonkco obuhle.

Rosin Flux

Eminye yeentlobo ezindala kakhulu zokusetyenziswa kwamanzi zisetyenziselwa i-pine sap (ihlanjululwe kwaye ihlanjululwe) ibizwa ngokuthi i-rosin. I-Rosin flux isasetyenziswa nanamhlanje, kodwa ngokuqhelekileyo imxube ye-flux ukulungiselela ukwenziwa kohlengahlengiso, ukusebenza kwayo kunye neempawu. I-flux iya kuhamba ngokukhawuleza, ngakumbi xa ishushu, isusa i-oxides ngokukhawuleza, kwaye isinceda ukususa iinqununu zangaphandle kwi-metal. I-Rosin flux i-asidi xa i-liquid, kodwa xa iphosa iyaqina kwaye ifumaneke. Ekubeni i-rosin flux iyakhutshwa xa iqinile, inokushiywa kwi-PCB ngaphandle kokulimaza isiphaluka ngaphandle kokuba isiphaluka siza kufudumala kwindawo apho i-rosin ingaba yinqwelo kwaye iqale ukutya ekuxhumeni. Ngenxa yeso sihlandlo esilungileyo ukususa i-rosin flux ihlala kwi-PCB. Kwakhona, ukuba isambatho esifanelekileyo sisetyenziswe okanye i-PCB izimonyo zibalulekile, i-resix flows kufuneka isuswe. I-Rosin flux ingasuswa ngotywala.

I-Organic Acid Flux

Enye yeefsies eziqhelekileyo zisetyenziselwa amanzi anelulubhile acid (OA). Iimpawu eziqhelekileyo ezibuthathaka zisetyenziswa kwi-acid acid flux, njenge-citric, i-lactic, ne-stearic acid phakathi kwabanye. I-acid acid ebuthakathaka idibene ne-solvents efana ne-isopropyl yotywala kunye namanzi. I-acid acid fluxes iyanamandla ukuba i-rosin ihluthe i-rosin kwaye ihlambulule i-oxides ngokukhawuleza. Ukongezelela, uhlobo lwamanzi olululululweyo lwe-acid acid flux luvumela i-PCB ukuba ihlanjululwe kalula ngamanzi aqhelekileyo (khusela nje izinto ezifanele ukuba zimanzi!). Ukucocwa kwe-acid acid flux kuyadingeka kuba i-residu iqhuba umbane kwaye iya kuba nefuthe kakhulu ekusebenzeni nasekusebenzeni isiphaluka, ukuba kungabikho umonakalo ukuba isiphaluka isebenza ngaphambi kokuba i-resix flux ihlanjululwe.

I-Acoric Acid Flux

Ikhetho elinamandla ukuba ukuhamba kwezinto eziphilayo kungenayo i-flux inorganic, ngokuqhelekileyo umxube we-acids ezinamandla njenge-hydrocloric acid, i-chloride ye-zinc, ne-ammonium chloride. I-inorganic acid flux ijoliswe ngakumbi kwiinsimbi ezinamandla ezifana nobhedu, ubhedu, kunye nentsimbi engenasici. I-inorganic acid flux idinga ukucoca ngokugqibeleleyo emva kokusetyenziswa ukususa zonke iindawo zokuhlala ezonakalisayo kwiindawo eziza kubuthathaka okanye ukutshabalalisa umxube we-solder ukuba ushiywe endaweni. I-inorganic acid flux ayifanele isetyenziswe kumsebenzi wendibano ye-elektroniki okanye umsebenzi wombane.

Solder Fumes

Umsi kunye nomsila okhutshwe ngexesha ukuxutywa akulungele ukukhupha. Iquka amakhemikhali amakhemikhali amaninzi ukusuka kuma-acids kunye nokuphendula kwabo kunye neengqimba ze-oxide. Ngokuqhelekileyo izixhobo ezifana ne-formaldehyde, i-toluene, i-alcohols kunye ne-acidic fumes zikhoyo kwi-solder fumes. Ezi ntuthu zingakhokelela kwisifo se-asthma kwaye zandise ukungabi nabuhlungu kwimfucumfucu. I-Cancer kunye nemingcipheko ebangela ukuba i-solder fumes iphantsi kakhulu kuba iqondo lokubilisa i-solder liphindaphindiweyo kunexesha elibambileyo kunokushisa okubilisayo kokushisa nokushisa kwe-solder. Umngcipheko omkhulu kunobangela wokusingatha i-solder ngokwayo. Ukunyamekela kufuneka kuthathwe xa usebenzisa i-solder, ngokugxila ekuhlambuleni izandla nokugwema ukutya, ukusela nokutshaya kwiindawo ezinokuqhawula ukukhusela ukungena kwi-body.