Aluminium yog ib qho ntawm cov hlau xav tau tshaj plaws vim nws cov yam ntxwv zoo. Nws lub ntsiab ntawm daim ntawv thov yog kev lag luam. Aluminium alloys kuj tseem siv, uas yog duralumin. Qhov chaw no tau txais nws lub npe nyob rau hauv kev hwm ntawm lub tuam txhab Dural, nyob rau hauv uas cov khoom ntawm cov hlau yog thawj tsim. Raws li cov kws tshaj lij, vuam ntawm duralumin yog suav tias yog ib txoj haujlwm nyuaj heev. Koj yuav tsum tau ua kom pom tseeb thiab mloog zoo li sai tau. Koj yuav kawm paub yuav ua li cas rau vuam duralumin hauv tsev hauv kab lus no.
Qhia kev sib txuas
Ua ntej koj pib vuam duralumin, koj yuav tsum paub txog cov yam ntxwv ntawm cov hlau no. Duralumin nrog lub siab tshaj plaws fluidity ntawm 250 MPa muaj qhov ceev ntawm 2.5 mus rau 2.8 t / cu. m. yaj atkub ntawm 650 degrees. Xws li qhov taw qhia yog qhov ncaj qha hauv aluminium nws tus kheej. Qhov no piav qhia vim li cas thaum lub sijhawm vuam, duralumin pib ntws vim yog cov electrodes yaj sai.
Yuav ua li cas nyuaj ntawm txoj kev?
Kev txiav txim los ntawm ntau qhov kev tshuaj xyuas, cov teeb meem tsis raug cais tawm thaum lub sij hawm vuam ntawm duralumin. Yog vim li cas rau qhov no yog cov yam ntxwv ntawm cov hlau alloy, uas muaj txhuas (93.5%), manganese (0.5%), magnesium (1.5%) thiab tooj liab (4.5%). Raws li cov kws tshaj lij, lawv txoj kev sib raug zoo nrog ib leeg yog qhov tsis zoo. Yog li ntawd, nws yog qhov zoo dua tias kev ua haujlwm vuam nrog duralumin yog ua los ntawm tus neeg paub txog. Yog tias koj xav tau kev sib txuas ntawm cov hlau no, koj yuav tsum tau coj mus rau hauv tus account qee qhov nuances, ntxiv rau hauv qab no.
About ways
Kev sib txuas tuaj yeem ua tau siv cov khoom siv semiautomatic. Cov cuab yeej rau vuam duralumin ua haujlwm nyob rau hauv ib hom mem tes. Yog li, cov hlau yog rhuab nyob rau hauv lub zog ntawm pulses, thiab tom qab ib tug poob nkag mus rau hauv lub weld pas dej ua ke, ib tug seam yog tsim. Yog tias koj txiav txim siab nres ntawm txoj kev no, koj yuav tsum paub tias qhov tsis zoo polarity ntawm cov electrodes yuav tsis muab seam. Tsuas yog xav tau qhov zoo.
Txoj kev thib ob yog siv tungsten-coated electrodes. Txoj kev no yuav muab cov khoom zoo thiab cov seam zoo. Txhawm rau tiv thaiv kev tsimoxide zaj duab xis, siv argon.
Tsis tas li, kev tsim cov roj tiv thaiv ib puag ncig yog ua los ntawm xenon, krypton thiab nitrogen. Txawm li cas los xij, cov roj no, tsis zoo li argon, yuav raug nqi koj ntau dua. Yuav kom vuam cov khoom nrog lub thickness ntau tshaj 30 hli nrog tungsten electrodes nyob rau hauv ib tug pass, peb-theem arc yuav tsum tau siv. Kev sib txuas lus feem ntau yog siv los txuas qhov chaw nrog lub thickness tsis ntau tshaj 3 hli.
Yog tias koj tsis muaj sijhawm los ua qhov hluav taws xob arc, siv cov vuam txias rau duralumin. Ua ntej koj yuav tsum tau txais ib qho tshwj xeeb muaj pes tsawg leeg, uas yog ob lub ntsiab lus nplaum. Nws tuaj yeem ua kua tuab lossis mastic.
Nws muaj epoxy resin thiab hlau hmoov, uas ua rau cov ntawv cog lus muaj zog. Ib qho ntxiv, txhawm rau txhim kho cov yam ntxwv ntawm txias vuam, uas yog, kom nce adhesion, cov chaw tsim khoom sau cov nplaum nrog cov tshuaj ntxiv tshwj xeeb. Txoj kev no tseem hu ua soldering. Qhov tseeb yog tias koj tuaj yeem txuas cov khoom tsis muaj hluav taws xob. Txhua yam koj xav tau yog lub tshuab hluav taws xob portable thiab NTS-2000 solder nyob rau hauv daim ntawv ntawm ib tug hlau. Kaw qhov khoob lossis txuas duralumin qhov chaw yog ib qho yooj yim. Nws yog ib qho tsim nyog los ua kom sov ib feem kom lub solder nrog tus pas nrig pib yaj thiab pib ntws mus rau hauv lub qhov.
Ua ntej, cov oxide raug tshem tawm ntawm qhov chawzaj duab xis. Tsis zoo li yav dhau los txoj kev, vuam txias yog sai dua. Feem ntau, los ntawm kev siv cov nplaum nplaum no, ntau yam xwm txheej ceev yuav raug tshem tawm sai sai thaum nws tsim nyog los txuas cov khoom ua los ntawm txhuas lossis nws cov alloys. Kev txiav txim los ntawm kev tshuaj xyuas, feem ntau cov kws ua haujlwm hauv tsev nyiam txoj kev no.
Ntawm kev tsim txiaj
Txawm tias qhov tseeb tias vuam tshuab yog qhov nyuaj heev, yog tias koj ua txhua yam kom raug, koj yuav xaus nrog cov seam du thiab zoo. Qhov zoo ntawm cov hlau no yog tias, nrog rau qhov loj me me, nws tuaj yeem tiv taus qhov hnyav. Kev txiav txim los ntawm ntau cov kev txheeb xyuas, vuam duralumin nrog argon yog suav tias yog nrov heev. Tsis tas li ntawd, kev sib txuas tuaj yeem nqa tau siv lub tshuab semi-automatic. Qhov kev xaiv ntawm qhov kev xaiv zoo tshaj plaws yog nyob ntawm tus tswv. Raws li kev paub welders, thaum soj ntsuam nrog cov hlau no, yeej tsis muaj teeb meem nrog kev xaiv ntawm electrodes. Qhov tseeb yog tias ntau ntawm lawv tuaj yeem cuam tshuam zoo nrog duralumin. Piv txwv li, koj tuaj yeem siv cov npe xws li OK96.20, OZA-1, OZANA-1, OZA-2 thiab OZANA-2.
About shortcomings
Raws li cov kws tshaj lij, tsis tshua muaj kev tiv thaiv corrosion yog muaj nyob hauv duralumin. Daim duab no yuav qis dua tom qab vuam. Thaum vuam, koj yuav tsum tau ceev faj heev, vim qhov tsis raug me ntsis yuav cuam tshuam rau qhov zoo ntawm kev sib txuas. Vim lub lojlub fluidity ntawm alloy, nws yuav tsis yooj yim rau tsim ib tug seam. Txhawm rau ua kom cov txheej txheem no yooj yim thiab ua kom cov txheej txheem, cov kws paub txog kev siv vuam siv flux. Nws yuav tsum tau siv rau saum npoo ntawm qhov chaw yuav tsum tau koom nrog. Yog li ntawd, qhov zoo ntawm kev sib txuas yuav siab dua. Tsis tas li ntawd, cov seam yuav raug tiv thaiv los ntawm kev cuam tshuam sab nraud.
pib qhov twg?
Pib vuam nrog kev npaj ntawm workpieces. Ntau yam kab mob kis tau zoo huv si los ntawm cov hlau nto thiab degreased. Koj tuaj yeem ua haujlwm nrog cov ntawv xuab zeb ntawm ntau qhov ntau thiab tsawg los yog txhuam hlau. Cov rog raug tshem tawm zoo nrog acetone lossis hnyav. Tom qab stripping thiab degreasing, koj yuav tsum tau saib xyuas ntawm cov npoo, nyob rau hauv qhov chaw ntawm lub seam yuav nyob rau yav tom ntej. Yog tias nws hloov tawm tias koj qhov khoob nrog cov npoo ntau dua 4 hli, ces lawv yuav tsum tau beveled me ntsis. Lub kaum sab xis ntawm qhov tsis ntau tshaj 35 degrees yog qhov zoo tshaj plaws.
thib ob
Nyob rau theem no, siv flux. Nws yog ib qho tseem ceeb uas nws npog thaj tsam vuam sib npaug. Txhawm rau kom tsis txhob deformation ntawm cov hlau, nws yog thawj zaug ua kom qeeb thiab maj mam cua sov. Thaum kawg ntawm txoj kev, lub seam nws tus kheej yog rhuab. Qhov sib koom ua ke koj tsim yuav raug them rau hauv slag. Nws yuav tsum tau ua tib zoo khob. Qhov kev pom zoo no yuav tsum tsis txhob raug saib xyuas, vim tias cov kab nrib pleb feem ntau nyob hauv qab slag. Raws li qhov tshwm sim, kev sib txuas yuav muaj qhov tsis zoo rau kev ntxhov siab.
Yuav ua li cas lwm tus kws tshaj lij qhia?
Cov kws tshaj lij kws tshaj lij pom zoo siv rauvuam duralumin additive. Cov khoom no yog nthuav tawm nyob rau hauv daim ntawv ntawm ib tug muaj zog thiab nruj lamellar pas nrig. Kev txiav txim siab los ntawm kev txheeb xyuas, nrog rau cov khoom siv ntxiv, cov hlau yuav raug siv nyiaj txiag ntau dua, thiab cov yam ntxwv ntawm lub zog ntawm cov qauv yuav siab dua. Thaum ua haujlwm nrog cov hlau no, ib yam li lwm yam hlau, yuav tsum tau ua raws li kev tiv thaiv kev nyab xeeb. Ua ntej koj pib vuam, yuav ib lub tsho tiv thaiv tshwj xeeb, daim npog qhov ncauj thiab hnab looj tes.
