1.Qhov tseem ceeb ntawm vuam nyob rau hauv daim ntawv hlau fabrication
Cov txheej txheem vuam tseem ceeb heev hauv kev tsim cov ntawv hlau raws li nws ua lub luag haujlwm tseem ceeb hauv kev koom nrog cov khoom siv hlau los tsim cov txheej txheem nyuaj thiab cov khoom lag luam.
Nov yog qee cov ntsiab lus uas qhia txog qhov tseem ceeb ntawm cov txheej txheem vuam hauvsheet hlau fabrication:
1.1. Joining qhov chaw:Vuam yog ib qho tseem ceeb rau kev koom nrog ib tus neeg cov ntawv hlau los tsim cov qauv loj xws livaj tse, ncej, thiabcov rooj sib txoos. Nws tsim kev sib txuas muaj zog thiab ruaj khov ntawm cov khoom siv hlau, ua rau kev tsim khoom ntawm cov khoom siv thiab ua haujlwm.
1.2 Kev ntseeg ruaj khov:Qhov zoo ntawm cov txheej txheem vuam ncaj qha cuam tshuam rau kev ncaj ncees ntawm cov ntawv hlau uas tau tsim. Kev ua tau zoo vuam ua kom ntseeg tau tias cov khoom sib dhos tuaj yeem tiv taus kev ntxhov siab, ib puag ncig thiab lwm yam kev ua haujlwm.
1.3 Tsim yooj yooj yim:Vuam muab kev tsim kom yooj yim rau cov ntawv hlau fabrication, tso cai rau kev tsim cov txheej txheem kev cai nyuaj. Nws tuaj yeem tsim cov khoom siv nrog cov geometry nyuaj, tso cai rau cov tuam txhab ua kom tau raws li cov qauv tsim tshwj xeeb thiab kev ua haujlwm tshwj xeeb.
1.4 Cov khoom sib xws:Cov txheej txheem vuam yog qhov tseem ceeb rau kev koom nrog ntau hom ntawv hlau cov ntaub ntawv, suav nrog steel, aluminium, stainless hlau, thiab lwm yam alloys. Qhov versatility no tso cai rau kev tsim cov khoom lag luam nrog cov khoom sib txawv ntawm cov khoom sib txawv kom tau raws li ntau hom kev lag luam.
1.5 Tus nqi tsim khoom:Cov txheej txheem vuam tau zoo pab ua kom muaj txiaj ntsig zoosheet hlau manufacturinglos ntawm kev ua kom nrawm sib dhos thiab tsim cov khoom siv. Ib txoj kev npaj vuam zoo tuaj yeem txhim kho cov txheej txheem tsim khoom, yog li txo lub sijhawm tsim khoom thiab txo cov nqi tsim khoom tag nrho.
1.6 Quality Assurance:Cov txheej txheem vuam yog qhov tseem ceeb rau kev ua kom zoo thiab kev ntseeg siab ntawm cov khoom siv hlau. Cov txheej txheem vuam kom raug, suav nrog kev tshuaj xyuas thiab kev ntsuas vuam, yog qhov tseem ceeb rau kev tswj xyuas cov txheej txheem siab ntawm kev ua haujlwm thiab kev ua haujlwm ntawm cov khoom.
1.7 Kev lag luam kev siv:Vuam yog dav siv nyob rau hauv ntau yam lag luam, nrog rautsheb, aerospace, kev tsim kho thiabkev tsim khoom, qhov twgsheet hlau Cheebtsamyog ib feem tseem ceeb ntawm kev tsim tsheb, tshuab, qauv thiab cov khoom siv.
Cov txheej txheem vuam yog ib qho tseem ceeb hauv kev tsim cov ntawv hlau vim nws tso cai rau kev tsim cov khoom ruaj khov, ua haujlwm zoo thiab ntau yam khoom. Los ntawm kev nkag siab txog qhov tseem ceeb ntawm kev siv vuam thiab ua raws li cov kev coj ua zoo tshaj plaws, cov tuam txhab tsim khoom tuaj yeem muab cov khoom lag luam zoo, muaj txiaj ntsig zoo, thiab txhim khu kev qha cov ntawv hlau rau ntau yam kev siv.
2. Sheet hlau vuam txheej txheem:
2.1 Kev Npaj:Thawj kauj ruam hauv daim ntawv hlau vuam yog npaj cov hlau nto los ntawm kev ntxuav thiab tshem tawm cov kab mob xws li roj, roj, lossis xeb. Qhov no yog qhov tseem ceeb rau kev ua tiav qhov muaj zog thiab huv si weld.
2.2JOint Design:Kev tsim kev sib koom ua ke yog qhov tseem ceeb rau kev ua tiav vuam. Kev sib koom ua ke, suav nrog hom kev sib koom ua ke (lap joint, pob tw, thiab lwm yam) thiab kev sib dhos, yuav cuam tshuam rau cov txheej txheem vuam thiab lub peev xwm rau kev sib txawv.
2.3 Vuam txoj kev:Muaj ntau ntau txoj kev siv vuam rau cov ntawv hlau, suav nrogTIG(tungsten inert gas) vuam,MIG(hlau inert gas) vuam,Resistance qhov chaw vuam, thiab lwm yam. Txhua txoj kev muaj nws tus kheej zoo thiab cov nyom.
3.Kev nyuaj siab los ntawmsheet hlau welding:
3.1 Deformation:Lub tshav kub tsim thaum lub sij hawm vuam txheej txheem tuaj yeem ua rau hlau deformation thiab warping, tshwj xeeb tshaj yog rau txhuas nrog cov thermal conductivity. Qhov no tuaj yeem ua rau qhov tsis raug ntawm qhov tsis raug thiab cuam tshuam rau tag nrho qhov zoo ntawm ib feem.
3.2 Kev tawg:Vim lub siab thermal expansion thiab contraction tus nqi ntawm txhuas, nws yog tshwj xeeb tshaj yog nws yuav tawg thaum lub vuam txheej txheem. Kev tswj kom zoo ntawm vuam tsis yog qhov tseem ceeb rau kev tiv thaiv cov kab nrib pleb.
4.Control distortion thiab zam welding teeb meem:
Txhawm rau txo qhov kev cuam tshuam ntawm vuam, ntau lub tswv yim thiab cov tswv yim tuaj yeem ua haujlwm thaum lub sij hawm vuam txheej txheem. Nov yog qee txoj hauv kev tseem ceeb los pab tswj thiab txo qis kev sib tw vuam:
4.1 Kev kho kom raug:Siv cov txheej txheem kho kom zoo thiab clamping los tuav lubkhoom ua haujlwmnyob rau hauv qhov chaw thaum lub sij hawm welding txheej txheem pab txo qis zog thiab deformation. Qhov no ua kom ntseeg tau tias qhov chaw tuav nws cov duab thiab qhov loj me thaum lub sijhawm vuam txheej txheem.
4.2 Vuam sequence:Kev tswj cov vuam sib txuas yog qhov tseem ceeb rau kev tswj cov deformation. Los ntawm kev ua tib zoo npaj cov txheej txheem vuam, cov khoom siv hluav taws xob tuaj yeem muab faib ua ntau qhov sib npaug, yog li txo qhov cuam tshuam tag nrho ntawm cov khoom ua haujlwm.
4.3 Preheating thiab tom qab vuam cua sov kho:Preheating lub workpiece ua ntej welding thiab ua tom qab vuam kev kho cua sov tuaj yeem pab txo qis kev ntxhov siab thiab txo qis deformation. Qhov no yog tshwj xeeb tshaj yog zoo rau cov ntaub ntawv xws li txhuas uas yog nquag deformation thaum vuam.
4.4 Vuam tsis:Kev xaiv thiab tswj cov vuam tsis xws li tam sim no, qhov hluav taws xob thiab kev mus los nrawm yog qhov tseem ceeb rau kev txo qis kev cuam tshuam. Los ntawm kev ua kom zoo dua cov kev txwv no, kev vuam zoo tuaj yeem ua tiav nrog txo cov cua sov nkag, uas pab tswj kev cuam tshuam.
4.5 Back-step welding tshuab:Siv cov cuab yeej siv rov qab-kauj ruam vuam, uas cov vuam tau ua nyob rau hauv qhov kev taw qhia rov qab mus rau qhov kawg vuam, tuaj yeem pab cuam tshuam qhov deformation los ntawm kev ntsuas qhov cuam tshuam thermal thiab txo qis kev ntxhov siab.
4.6 Kev siv cov jigs thiab fixtures:Siv cov jigs thiab fixtures tsim tshwj xeeb rau cov txheej txheem vuam yuav pab tswj kom raug qhov kev sib raug zoo thiab cov duab ntawm lub workpiece thiab txo qhov muaj peev xwm ntawm deformation thaum lub sij hawm vuam txheej txheem.
4.7 Kev xaiv khoom siv:Xaiv qhov tsim nyog cov hlau thiab cov ntaub ntawv muab tub lim yuav cuam tshuam rau vuam deformation. Sib piv cov hlau muab tub lim rau lub hauv paus hlau thiab xaiv cov ntaub ntawv nrog cov coefficient tsawg ntawm thermal expansion tuaj yeem pab txo qis kev cuam tshuam.
4.8 Welding txheej txheem xaiv:Nyob ntawm daim ntawv thov tshwj xeeb, xaiv cov txheej txheem vuam tsim nyog tshaj plaws, xws li TIG (tungsten inert gas) lossis MIG (hlau inert gas) vuam, tuaj yeem pab txo qis kev cuam tshuam los ntawm kev tswj cov cua sov thiab vuam ceev.
Los ntawm kev siv cov tswv yim thiab cov tswv yim no, vuam distortion tuaj yeem txo qis, tshwj xeeb tshaj yog thaum ua haujlwm nrog cov ntaub ntawv xws li txhuas. Txhua txoj hauv kev no ua lub luag haujlwm tseem ceeb hauv kev tswj kev deformation thiab ua kom ntseeg tau qhov zoo ntawm qhov vuam.
Post lub sij hawm: May-24-2024