Hluav taws xob soldering hlau--kev faib tawm, cov hauv paus ntsiab lus thiab daim ntawv thov kev paub txog kev siv brazing feem ntau
Ib txoj kev vuam uas cov khoom siv hlau nrog qhov qis qis dua li cov hlau hauv paus yog siv los ua cov khoom siv, thiab cov kua nplaum yog siv los ntub cov hlau hauv paus thiab sau qhov sib txawv ntawm qhov chaw ua haujlwm thiab ua kom nws diffuse nrog lub hauv paus hlau. . Lub brazing deformation yog me me, thiab kev sib koom ua ke yog du thiab zoo nkauj. Nws yog tsim rau vuam precision, complex thiab Cheebtsam ntawm cov ntaub ntawv sib txawv, xws li honeycomb qauv daim hlau, turbine hniav, hard alloy cov cuab yeej thiab luam tawm Circuit Court boards. Ua ntej brazing, lub workpiece yuav tsum tau ua tib zoo ua tiav thiab nruj nreem ntxuav kom tshem tawm cov roj stains thiab cov oxide tuab tuab heev los xyuas kom meej qhov sib dhos clearance ntawm lub interface. Qhov sib txawv feem ntau yuav tsum nyob nruab nrab ntawm {{0}}.01 thiab 0.1 hli.
Hom Nyob ntawm qhov kub thiab txias, brazing tuaj yeem muab faib ua ob pawg. Yog tias qhov vuam kub kub qis dua 450 degree, nws yog hu ua mos soldering, thiab yog tias nws siab tshaj 450 degree, nws hu ua hard brazing.
Soldering feem ntau yog siv rau vuam conductive, airtight thiab watertight li hauv electronics thiab zaub mov industries. Soldering nrog tin-lead alloy li solder feem ntau yog siv. Solder feem ntau yuav tsum tau siv flux kom tshem tawm cov oxide zaj duab xis thiab txhim kho cov wettability ntawm cov solder. Muaj ntau ntau hom flux, thiab rosin cawv tov yog feem ntau siv rau soldering hauv kev lag luam hluav taws xob. Cov residue tom qab flux vuam tsis muaj corrosive nyhuv ntawm lub workpiece, uas yog hu ua non-corrosive flux. Cov flux siv rau vuam tooj liab, hlau thiab lwm yam ntaub ntawv yog tsim los ntawm zinc chloride, ammonium chloride thiab roj av jelly. Thaum vuam aluminium, fluoride thiab fluoroborate yog siv los ua fluxes, thiab hydrochloric acid ntxiv zinc chloride yog siv los ua fluxes. Cov residues tom qab flux vuam yog corrosive, hu ua corrosive flux, thiab yuav tsum tau ntxuav tom qab vuam.
Brazed pob qij txha muaj lub zog siab thiab qee qhov tuaj yeem ua haujlwm ntawm qhov kub thiab txias. Muaj ntau hom solders rau brazing, thiab cov solders raws li txhuas, nyiaj, tooj liab, manganese thiab npib tsib xee yog siv dav tshaj plaws. Aluminium-raws li solder feem ntau yog siv rau brazing aluminium khoom. Nyiaj-raws li thiab tooj liab-raws li solders feem ntau yog siv rau brazing ntawm tooj liab thiab hlau qhov chaw. Manganese-raws li thiab nickel-raws li solders feem ntau yog siv los vuam qhov chaw xws li cov hlau tsis muaj steel, kub-resistant steel thiab high-temperature alloys uas ua haujlwm ntawm qhov kub thiab txias. Palladium-based, zirconium-based thiab titanium-based solders feem ntau yog siv rau vuam refractory hlau xws li beryllium, titanium, thiab zirconium, graphite, thiab ceramics. Cov yam ntxwv ntawm lub hauv paus hlau thiab kev ua tau zoo ntawm kev sib koom ua ke yuav tsum tau txiav txim siab thaum xaiv lub solder. Brazing flux feem ntau yog tsim los ntawm chlorides thiab fluorides ntawm alkali hlau thiab hnyav hlau, los yog borax, boric acid, fluoroborate, thiab lwm yam, thiab tuaj yeem ua hmoov, muab tshuaj txhuam thiab kua. Lithium, boron thiab phosphorus kuj tau ntxiv rau qee cov khoom siv los txhim kho lawv lub peev xwm tshem tawm cov yeeb yaj kiab oxide thiab ntub dej. Flux residue tom qab vuam yog ntxuav nrog dej sov, citric acid los yog oxalic acid.
Txoj kev Muaj ntau cov txheej txheem uas feem ntau siv rau hauv brazing, uas feem ntau txawv raws li cov cuab yeej siv thiab cov ntsiab lus ua haujlwm. Piv txwv li, raws li lub tshav kub qhov chaw, muaj infrared, electron beam, laser, plasma, glow discharge brazing, thiab lwm yam .; Raws li cov txheej txheem ua haujlwm, muaj kev tiv thaiv kev sib cuag brazing thiab diffusion brazing. Tiv tauj cov tshuaj tiv thaiv brazing yog siv lub solder los teb nrog lub hauv paus hlau los ua kom muaj cov theem ua kua los sau qhov sib koom ua ke. Diffusion brazing yog txhawm rau txhawm rau khaws cov cua sov thiab lub sijhawm diffusion, kom lub vuam thiab lub hauv paus hlau yog tag nrho homogenized, thiaj li tau txais kev sib koom ua ke nrog cov khoom zoo ib yam li lub hauv paus hlau. Cov lus hauv qab no qhia txog kev sib koom ua ke sib koom ua ke.
