Overheating nyob rau hauv lub pob tw welding tshuab weldments tuaj yeem ua rau muaj kev cuam tshuam cov vuam zoo thiab cov qauv kev ncaj ncees. Kev tiv thaiv overheating yog ib qho tseem ceeb rau cov welders thiab cov kws tshaj lij hauv kev lag luam vuam. Kab lus no tham txog cov tswv yim zoo kom tsis txhob overheating nyob rau hauv lub taub qab vuam tshuab weldments, kom ntseeg tau cov khoom zoo welds.
- Kev Siv vuam zoo: Kev teeb tsa cov vuam tsim nyog, suav nrog tam sim no, qhov hluav taws xob, thiab kev mus ncig ceev, yog qhov tseem ceeb los tiv thaiv overheating. Kev kub siab tam sim no lossis lub sijhawm ntev vuam tuaj yeem ua rau muaj cua sov ntau dhau. Xyuas kom meej tias qhov tsis sib haum nrog cov khoom tshwj xeeb thiab kev sib koom ua ke yog welded.
- Tsim nyog Preheating: Preheating lub workpieces ua ntej vuam tuaj yeem pab txo qhov kev pheej hmoo ntawm overheating. Preheating xyuas kom meej tias cov ntaub ntawv nyob rau ntawm qhov kub thiab txias, tiv thaiv kom txias sai thiab thermal stresses thaum vuam.
- Tsim nyog Electrode / Filler Material: Xaiv cov khoom siv electrode los yog muab tub lim rau daim ntawv thov vuam. Cov ntaub ntawv raug txo qis cov cua sov uas yuav tsum tau ua kom zoo fusion thiab pab tiv thaiv overheating.
- Tsim kom muaj kev sib koom ua ke: Ib qho kev sib koom ua ke zoo nrog cov kaum sab xis uas tsim nyog thiab kev sib haum xeeb yuav txo tau txoj hauv kev ntawm overheating. Xyuas kom meej tias qhov sib koom ua ke geometry tso cai rau kev xa tawm cua sov thaum lub sij hawm vuam.
- Tswj Vuam Ceev: Kho qhov vuam ceev yog qhov tseem ceeb kom tsis txhob overheating. Kev mus los nrawm dua tuaj yeem txwv cov cua sov nkag, thaum qeeb qeeb yuav ua rau muaj cua sov ntau dhau. Tuav lub vuam ceev kom zoo ib yam thoob plaws hauv cov txheej txheem.
- Saib xyuas Thaum tshav kub kub input: Saib xyuas cov cua kub tawm thaum lub sij hawm vuam kom tsis txhob overheating. Ua raws li cov khoom siv hluav taws xob sib xyaw thiab kho cov vuam tsis zoo raws li kev tswj xyuas cov cua sov tsim.
- Txoj kev ua kom txias zoo: Siv cov kev ua kom txias zoo, xws li dej txias vuam torches lossis fixtures, kom dissipate cua sov thaum vuam. Cov tshuab cua txias no pab tswj cov vuam kub kom tsim nyog.
- Tom qab Weld Heat Treatment (PWHT): Xav txog kev kho cua sov tom qab vuam (PWHT) rau cov ntawv thov tshwj xeeb. PWHT tuaj yeem txo cov kev ntxhov siab thiab txhim kho cov khoom siv thaum txo qhov kev pheej hmoo ntawm overheating thaum vuam.
- Kev soj ntsuam zoo: Ua kom zoo zoo tom qab vuam los txheeb xyuas cov cim qhia ntawm overheating, xws li discoloration, warping, los yog metallurgical hloov. Hais txog txhua yam teeb meem tam sim ntawd los tiv thaiv lawv los ntawm kev cuam tshuam cov weld txoj kev ncaj ncees.
- Kev cob qhia tus neeg ua haujlwm: xyuas kom cov welders tau txais kev cob qhia zoo hauv kev lees paub thiab tiv thaiv cov teeb meem overheating. Tus neeg ua haujlwm txawj thiab kev paub dhau los ua lub luag haujlwm tseem ceeb hauv kev tswj cov txheej txheem vuam kom zoo.
Nyob rau hauv xaus, tiv thaiv overheating nyob rau hauv lub pob tw welding tshuab weldments yuav tsum tau ib tug ua ke ntawm zoo vuam tsis, preheating, tsim nyog cov ntaub ntawv, sib koom tsim, vuam ceev tswj, tshav kub input xyuas, txias txoj kev, thiab tom qab vuam thaum tsim nyog. Kev cob qhia zoo thiab kev tshuaj xyuas tsis tu ncua ua rau muaj kev tiv thaiv zoo ntawm cov teeb meem overheating. Los ntawm kev siv cov tswv yim no, welders thiab cov kws tshaj lij tuaj yeem tsim cov welds zoo, txo qhov kev pheej hmoo ntawm qhov tsis xws luag, thiab ua kom lub neej ntev thiab kev ntseeg siab ntawm cov qauv welded. Hais txog kev tiv thaiv overheating txhawb kev nce qib hauv vuam tshuab thiab txhawb nqa kev ua tau zoo hauv kev lag luam vuam.
Post lub sij hawm: Sep-01-2023
