1. Cov ntaub ntawv keeb kwm ntawm daim iav vuam
Daim iav welding yog kev siv tshuab ua haujlwm vuam raws li lub hauv paus ntsiab lus ntawm daim iav imaging thiab siv daim iav-pab soj ntsuam los tswj cov txheej txheem vuam ua haujlwm. Nws yog tsuas yog siv rau vuam ntawm welds uas tsis tuaj yeem pom ncaj qha vim qhov nqaim vuam txoj hauj lwm.
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Qhov chaw ruaj khov ntawm daim iav feem ntau muaj ob qhov yuav tsum tau ua. Ua ntej, nws yuav tsum yooj yim rau qhov muag liab qab los saib xyuas qhov xwm txheej ntawm lub pas dej molten los ntawm kev xav ntawm daim iav. Qhov thib ob, nws yuav tsum tsis txhob cuam tshuam txoj haujlwm ntawm argon arc vuam phom thiab taug kev thiab viav vias ntawm rab phom vuam thaum lub sijhawm vuam. Qhov kev ncua deb ntawm daim iav thiab weld seam Tus txheeb ze txoj hauj lwm ntawm lub raj kab yog kho nyob ntawm qhov sib nrug.
2. Kev npaj ua ntej vuam
(1) Qhov chaw vuam qhov sib txawv yuav tsum tau tswj nruj me ntsis, feem ntau 2.5 ~ 3.0 hli. Qhov chaw vuam seam txoj hauj lwm yuav tsum nyob rau pem hauv ntej ntawm cov yeeb nkab.
(2) Muab lub lens tso rau hauv qhov chaw uas qhov vuam pib nyob rau hauv txoj kab ntsug, thiab siv rab phom vuam los simulate lub trajectory thaum vuam los kho qhov kev ncua deb thiab lub kaum sab xis ntawm lub lens kom lub lens nyob rau hauv txoj hauj lwm zoo tshaj plaws. vuam kev soj ntsuam.
(3) Txheeb xyuas tias argon roj ntws feem ntau yog 8 ~ 9 L / min, tungsten electrode txuas ntxiv ntev yog 3 ~ 4 hli, thiab qhov arc curvature ntawm vuam hlau yog npaj ua ntej.
3. Kev tshuaj xyuas qhov nyuaj ntawm daim iav vuam
(1) Daim iav imaging yog reflection imaging. Thaum lub sijhawm ua haujlwm vuam, kev ua haujlwm pom los ntawm tus welder nyob rau hauv radial kev taw qhia ntawm lub qhov ncauj yeeb nkab yog opposite rau qhov tseeb kev taw qhia. Thaum lub sij hawm vuam txheej txheem, nws yog ib qho yooj yim los pub cov hlau mus rau lub pas dej molten hauv daim iav. , cuam tshuam rau qhov qub vuam.
Yog li ntawd, lub viav vias ntawm vuam arc thiab cov xaim-filling txav yog qhov nyuaj rau kev sib koom ua ke, zoo ib yam, thiab kev sib koom ua ke, uas tuaj yeem yooj yim ua rau lub arc ntev dhau, tungsten yuav tsum pinched, xaim-filling tsis txaus, thiab qhov kawg ntawm cov vuam hlau kom sib tsoo nrog cov tungsten electrode.
(2) Lub viav vias sab nraud thiab kev txav ntawm cov vuam arc tsis hloov pauv tau yooj yim, uas tuaj yeem ua rau tsis tiav ntawm cov hauv paus hniav, concavity, tsis muaj fusion, undercutting, thiab kev ua tsis zoo. Yog tias qhov vuam ceev qeeb dhau, qhov tsis xws li qhov pores tuaj yeem tshwm sim tau yooj yim.
(3) Thaum saib lub pas dej molten los ntawm daim iav, lub teeb pom kev arc muaj zog heev thiab nws nyuaj rau pom cov pas nrig tungsten kom meej. Thaum pub cov hlau, nws yog ib qho yooj yim uas yuav ua rau lub vuam hlau sib tsoo nrog tungsten pas nrig, deforming lub ntsis ntawm tungsten pas nrig, cuam tshuam rau arc stability, thiab yooj yim ua rau tsis xws luag xws li tungsten inclusion. .
(4) Lub vuam seam pom los ntawm daim iav yog cov duab tiaj tus. Cov nyhuv peb-dimensional ntawm weld seam nyob rau hauv daim iav tsis muaj zog, thiab daim iav dluab ntawm lub teeb arc thiab lub pas dej molten yog superimposed rau ib leeg. Lub teeb arc muaj zog heev, thiab nws yog ib qho nyuaj kom paub meej qhov txawv ntawm lub pas dej molten, yog li lub vuam seam Kev tswj ntawm thickness thiab straightness yuav ncaj qha cuam tshuam qhov zoo ntawm vuam seam tsim.
4. Daim iav vuam txoj kev ua haujlwm
(1) Base txheej vuam
a.Inner wire method
Muab cov phom vuam nyob rau hauv qhov chaw uas cov vuam pib ntaus lub arc, thiab thauj cov vuam hlau los ntawm qhov sib txawv ntawm qhov zawj rau pem hauv ntej mus rau qhov chaw kub hnyiab ntawm sab nraum qab. Saib xyuas qhov tsim ntawm cov hauv paus hniav nrog lub qhov muag liab qab, thiab tseem saib xyuas qhov kub hnyiab thiab pom tshwm hauv lub lens ib ntus. . Siv txoj kev "ob qeeb thiab ib qho nrawm" los ua haujlwm ntawm rab phom vuam.
Tswj lub thickness ntawm lub hauv paus txheej ntawm 2.5 ~ 3.0 hli. Weld los ntawm 6 teev sawv ntxov txog 9 teev tsaus ntuj, thiab tom qab ntawd weld los ntawm 6 teev sawv ntxov txog 3 teev tsaus ntuj. Ua kom tiav lub hauv paus txheej vuam raws li ib ntus qhia hauv daim duab 2.
b. Sab nrauv txoj kev silk
Ua ntej, npaj lub arc rau tus nqi ntawm cov vuam hlau, tom qab ntawd kho qhov vuam phom lub qhov ncauj ntawm cov yeeb nkab vuam hlaws ntawm lub kaum sab xis ntawm 60 °, pib lub arc, thiab xyuam xim rau cov xaim pub mis ntawm lub arc thiab molten pas dej ua ke. hauv lub lens.
Cov hlau tuaj yeem noj tsis tu ncua lossis nrog kev cuam tshuam arc. Qhov kev xav ntawm lub lens tuaj yeem ua rau tsis zoo rau kev ua haujlwm: piv txwv li, nws yog qhov nyuaj rau kev paub qhov txawv ntawm qhov tseeb vuam hlau thiab cov vuam hlau cuam tshuam rau hauv lub lens, uas tuaj yeem yooj yim ua rau cov xaim tsis txaus, qhov kub ntawm lub pas dej ntau dhau, thiab kev puas tsuaj. lub tungsten. Heev heev, cov teeb meem xws li pores thiab kev nyuaj siab tshwm sim.
Yog li ntawd, kev ua haujlwm yog mob siab rau tus kheej rau qhov kev xav ntawm daim iav, thiab ua tib zoo txuas lub arc curvature ntawm vuam hlau rau hauv qhov zawj kom pub cov hlau sib npaug. Cov phom vuam yog ua los ntawm txoj kev "ob qeeb thiab ib qho ceev", thiab lub kaum sab xis ntawm rab phom vuam raug kho raws li qhov arc hauv lub lens.
Tsis txhob tilting rab phom vuam ntau dhau, ua rau lub arc ntev dhau lawm thiab lub hauv paus txheej yuav tuab heev, tiv thaiv qhov tsis xws luag xws li kev nkag tsis tiav. Thaum vuam yog nruab nrab ntawm 8 teev thiab 9 teev, ib feem ntawm qhov tseeb arc tuaj yeem pom, thiab kev ua haujlwm tuaj yeem ua ke nrog qhov xwm txheej tiag tiag thiab daim iav saum npoo.
Ua kom tiav 1/4 ntawm cov yeeb nkab qhov ncauj vuam thiab tom qab ntawd pib daim iav vuam ntawm lwm 1/4 ntawm qhov vuam. Kev sib koom ua ke ntawm 6 teev sawv ntxov yog ib qho ntawm cov haujlwm tseem ceeb ntawm daim iav vuam, thiab qhov tsis xws luag feem ntau tshwm sim thaum rov ua haujlwm.
Thaum lub sijhawm ua haujlwm, txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau ua haujlwm zoo . Thaum lub pas dej molten yog tsim ntawm qhov sib koom ua ke Tom qab ntawd ntxiv cov welding hlau rau ib txwm siv daim iav welding.
Thaum kawg, ua kom tiav cov primer welding nyob rau sab pem hauv ntej (tsis yog daim iav welding) raws li qhov sib lawv liag hauv daim duab 2, thiab lub sealing tiav.
(2) Npog txheej vuam
1) Kev soj ntsuam nyuaj
Vim hais tias txoj hauj lwm ntawm cov vuam nyob rau hauv daim iav yog qhov txawv ntawm qhov khoom tiag, nws yog ib qho yooj yim ua rau undercuts, unfused npoo ntawm grooves, unfused nyob rau hauv cov khaubncaws sab nraud povtseg, pores, los yog puas rau lub tungsten electrode thaum lub sij hawm ua hauj lwm.
2) Npog vuam kev ua haujlwm yuav tsum
Ua ntej welding, lub trajectory ntawm vuam phom yuav tsum tau simulated, thiab lub kaum sab xis ntawm lub lens thiab lub arc curvature ntawm lub pre-npaj tus nqi ntawm vuam hlau yuav tsum tau kho.
Thaum lub sijhawm ua haujlwm vuam, koj yuav tsum xub ua kom lub vuam phom lub qhov ncauj ntawm 6 teev ntawm qhov zawj ntawm lub kaum sab xis ntawm 60 ° rau arc preheating. Tom qab preheating, nrog rau qhov ci ntawm lub teeb arc, ncua lub pre-curved vuam hlau los ntawm ib sab ntawm cov yeeb nkab mus rau arc burning point nyob rau hauv lub lens. Txoj hauj lwm, pub hlau. Txoj hauv kev zoo tshaj plaws rau kev pub hlau yog sib txuas cov vuam hlau nrog arc curvature mus rau vuam seam ntawm cov yeeb nkab, maj mam pub cov hlau tsis tu ncua thiab sib npaug rau hauv lub pas dej molten, thiab saib kev loj hlob ntawm ntug ntawm vuam seam thiab kev hloov ntawm molten droplets nyob rau hauv lub lens. txheej txheem thiab qhov ntev arc ntawm tungsten electrode ntsis,
Raws li "ob qho tib si qeeb thiab ib qho ceev" txoj kev vuam, txav mus rau 9 teev nyob rau hauv daim iav saum npoo kom tiav 1/4 npog nto vuam thiab tua cov arc. Tom qab ntawd txav lub lens mus rau lwm qhov 1/4 ntawm lub nraub qaum weld rau trajectory simulation kho thiab kho. Kev ua haujlwm tsis raug ntawm qhov kev sib txuas ntawm 6 cov ntsiab lus tseem yuav ua rau lub vuam tsis xws luag, thiab nws yog qhov ntom ntom uas muaj qhov tsis xws luag.
Nws yog qhov zoo tshaj kom pib arc cua sov ntawm pem hauv ntej weld thaum 6 teev sawv ntxov. Thaum cov sib koom ua ke melts mus rau hauv lub pas dej molten, ntxiv cov welding hlau los ua ib txwm siv daim iav vuam. Them mloog mus rau lub melting mob ntawm ntug thiab ua raws li txoj kev ntawm thawj 1/4. Ua haujlwm kom txog thaum lub arc tawm ntawm 3 teev thiab nres.
Tom qab ntawd welded ib feem yog welded raws li cov qauv kev ua kom tiav cov txheej txheem welding ntawm tag nrho cov yeeb nkab.
5. Ceev faj
①Qhov kev tso kawm ntawm daim iav tseem ceeb heev. Qhov deb ntawm lub lens yog los ntawm cov khoom tiag los yog qhov sib npaug tsawg dua nws mus rau qhov khoom tiag, qhov tseeb ntawm kev ua haujlwm yuav ntau dua;
②Qhov deb ntawm lub lens thiab cov khoom yog los ntawm tus neeg teb xov tooj, qhov kev ua haujlwm nyuaj dua yuav yog;
③ Qhov sib txawv ntawm ob qhov chaw yuav tsum tau tswj nruj me ntsis, lub kaum sab xis ntawm rab phom vuam yuav tsum tsim nyog, vuam yuav tsum nyob rau hauv kev txiav txim, thiab kev xav ntawm kev ntxiv cov hlau hauv daim iav yuav tsum meej.
Post lub sij hawm: Nov-06-2023
