Can Dissimilar Metals (xws li Steel Thiab Aluminium) Welded? Lub tshuab vuam twg tsim nyog?

Hauv kev tsim khoom thiab kev kho txhua hnub, nws yog ib qho uas yuav tsum tau koom nrog ntau hom hlau ua ke, xws li hlau thiab txhuas. Ntau tus neeg xav tias: Cov hlau thiab txhuas puas tuaj yeem sib txawv, tuaj yeem ua ke ua ke? Thiab yog tias lawv tuaj yeem ua tau, hom vuam tshuab zoo li cas? Niaj hnub no, kuv yuav piav qhia txog cov teeb meem no hauv cov lus yooj yooj yim los pab txhua tus neeg nkag siab txog qhov sib txawv ntawm cov hlau tsis sib xws.

 I. Hlau thiab Aluminium puas tuaj yeem Welded? Lo lus teb yog Yog, Tab sis nws nyuaj

Ua ntej, cia kuv qhia koj tias: Hlau thiab txhuas tuaj yeem raug welded ua ke. Txawm li cas los xij, piv rau kev sib txuas ntawm tib hom hlau, qhov nyuaj yog qhov siab dua, feem ntau yog vim muaj ob yam hauv qab no:

Ntawm qhov tod tes, steel thiab aluminium muaj ntau yam sib txawv. Hlau muaj qhov melting point ntawm ib ncig ntawm 1,500 ℃, thaum txhuas melts ntawm tsuas yog 660 ℃. Qhov no ua rau kev tswj qhov kub thiab txias thaum lub sij hawm vuam heev - yog tias qhov kub thiab txias, steel yuav tsis yaj; yog tias nws siab dhau lawm, aluminium yuav yooj yim hlawv los yog deform. Ntxiv mus, lawv cov thermal conduction speeds txawv. Aluminium ua kom sov sai sai, ua rau lub tshav kub dissipate sai thiab ua rau nws nyuaj rau tsim ib tug ruaj khov molten pas dej ua ke.

Ntawm qhov tod tes, qhov tsis zoo tshwm sim tuaj yeem tshwm sim thaum vuam. Ntawm qhov kub thiab txias, hlau thiab txhuas tuaj yeem hnov ​​​​mob rau daim tawv nqaij tawv thiab tawv. Cov tebchaw no zoo li cov pob zeb me me hauv cov vuam seam, ua rau nws tawg hauv kev ntxhov siab. Tsis tas li ntawd, aluminium yog qhov cuam tshuam rau oxidation, tsim ib txheej ntawm oxide ntawm nws qhov chaw. Cov txheej txheej oxide no muaj qhov siab melting point thiab tuaj yeem cuam tshuam kev sib xyaw ntawm cov hlau thiab txhuas. Yog tias tsis kho kom raug, lub vuam seam yuav tsis muaj zog.

Txawm li cas los xij, tsis txhob poob siab. Nrog rau txoj kev thiab cov cuab yeej siv tau zoo, cov kev cov nyom no tuaj yeem kov yeej, thiab cov hlau thiab txhuas tuaj yeem welded ruaj ntseg.

 II. Plaub Hom Vuam Tshuab rau Cov Hlau Sib Txawv - Txhuas Vuam Xav Tau

Xaiv lub tshuab vuam zoo yog qhov tseem ceeb rau kev vuam hlau thiab txhuas zoo. Cov tshuab vuam sib txawv muaj cov yam ntxwv sib txawv thiab tsim nyog rau cov xwm txheej sib txawv. Nov yog plaub hom kev siv ntau:

1. Gas Hlau Arc Vuam Tshuab (MIG Welder): Ib qho kev xaiv rau kev vuam txhua hnub

  MIG welder yog ib qho khoom siv dav siv rau vuam hlau thiab txhuas. Nws ua hauj lwm los ntawm melting ib tug vuam hlau los sau cov seam thiab siv inert gases xws li argon los tiv thaiv lub vuam cheeb tsam ntawm oxidation.

  Rau cov hlau - txhuas cov khoom siv nrog lub thickness ntawm 3 - 10 hli, xws li cov khoom sib txuas ntawm cov tshuab, MIG welder yog qhov haum zoo. Nws muaj qhov ceev vuam ceev thiab yooj yim rau kev khiav lag luam. Cov neeg pib tshiab tuaj yeem paub nws tom qab qee qhov kev xyaum. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tau siv cov vuam hlau tshwj xeeb uas tsim los rau cov hlau tsis sib xws kom tsis txhob muaj teeb meem hauv cov vuam seam.

2. Gas Tungsten Arc Vuam Tshuab (TIG Welder): Rau Precision Ua Haujlwm

  Zoo ib yam li MIG welder, TIG welder kuj siv cov roj inert rau kev tiv thaiv. Tab sis es tsis txhob melting ib tug hlau li lub electrode, nws siv ib tug tungsten electrode los tsim ib tug arc. Qhov kom zoo dua yog kev tswj xyuas kom sov, uas tiv thaiv aluminium los ntawm kev kub nyhiab thiab ua kom du, zoo nkauj pleasing weld seams.

  Thaum vuam cov hlau nyias - cov khoom siv txhuas, xws li cov khoom siv hluav taws xob lossis cov khoom siv me me nrog lub thickness ntawm 1 - 3 hli, los yog thaum cov tsos ntawm vuam seam yog qhov tseem ceeb, TIG welder yog qhov kev xaiv zoo tshaj plaws. Txawm li cas los xij, nws muaj qhov nrawm nrawm dua thiab haum rau me me - batch, precision vuam. Nws tsis raug nqi - zoo rau kev tsim khoom loj.

3. Laser Vuam Tshuab: Cov Kev Xaiv Zoo Tshaj Plaws rau Kev Siv Siab - Kawg

  Lub tshuab laser vuam siv lub siab siv laser beam kom yaj hlau. Nws cov concentrated cua sov tuaj yeem koom nrog cov hlau thiab txhuas nrog cov cua sov tsawg - cov cheeb tsam cuam tshuam, txo cov deformation thiab tsim cov nkig tebchaw.

  Hauv kev lag luam automotive, high-precision steel - aluminium Cheebtsam, nrog rau qhov tseem ceeb hauv thaj chaw aerospace, feem ntau cia siab rau cov tshuab laser vuam. Txawm li cas los xij, cov tshuab no kim heev thiab xav tau cov neeg ua haujlwm tshwj xeeb rau kev ua haujlwm thiab kev saib xyuas. Lawv tsis tshua muaj siv nyob rau hauv kev cob qhia me me lossis rau kev kho txhua hnub.

4. Kev sib txhuam txhuam vuam tshuab: Tus neeg muaj zog rau tuab - phaj vuam

  Rau cov hlau tuab - cov khoom siv txhuas, xws li kev sib txuas ntawm cov hlau thiab txhuas cov qauv nrog lub thickness ntawm tshaj 10 hli, kev sib txhuam do vuam tshuab yog zoo tagnrho. Nws siv lub cuab yeej ua kom nrawm nrawm los rub thiab yaj cov chaw sib cuag ntawm cov hlau thiab txhuas, uas tom qab ntawd txias thiab khov ua ke.

  Txoj kev vuam no tsis xav tau cov xaim xaim thiab tshem tawm cov kev txhawj xeeb oxidation. Lub resulting weld seam yog muaj zog thiab tawg - resistant. Txawm li cas los xij, cov cuab yeej siv loj - nplai thiab tsuas yog tuaj yeem txuas cov khoom ua haujlwm tsis tu ncua. Nws tsis yooj yim dua piv rau yav dhau los hom welders.

 III. Lub tswv yim rau xaiv tus Welder txoj cai kom tsis txhob muaj kev cuam tshuam

Thaum xaiv lub tshuab vuam rau hlau - aluminium vuam, tsis txhob ua qhov muag tsis pom kev xaiv kim. Xaiv raws li koj qhov kev xav tau tshwj xeeb:

Rau me me - batch ntau lawm, nyias cov khoom, los yog precision vuam, xws li kho qhov me me los yog ua cov khoom me me, TIG welder muaj txiaj ntsig zoo rau cov nyiaj. Rau txhua hnub kev tsim khoom ntawm nruab nrab - tuab steel - txhuas cov khoom siv nrog kev xav tau nruab nrab, MIG vuam yog txaus. Hauv cov chaw tsim khoom nrog cov khoom loj loj thiab cov kev xav tau siab, xws li hauv kev lag luam tsheb thiab hluav taws xob, txawm hais tias lub tshuab laser vuam yog kim, nws tuaj yeem txhim kho kev ua tau zoo thiab zoo. Rau vuam tuab hlau - txhuas cov qauv, kev sib txhuam do vuam tshuab yog qhov kev xaiv tsim nyog.

Tsis tas li ntawd, tsis hais hom welder koj xaiv, nws yog ib qho tseem ceeb uas yuav tsum tau ntxuav cov hlau thiab txhuas kom huv si kom tshem tawm cov oxide txheej thiab cov roj paug ua ntej vuam. Txwv tsis pub, txawm tias qhov zoo tshaj plaws welder yuav tsis tsim ib tug zoo weld.

Yog tias koj xav tau lub tshuab vuam, thov hu rau Ms. Zhao

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