Tom qab ua tiav cov txheej txheem welding, nws yog ib qho tseem ceeb rau kev soj ntsuam qhov zoo thiab kev ncaj ncees ntawm cov welds. Kev ua cov kev sim tom qab vuam muab cov kev nkag siab tseem ceeb rau hauv lub vuam cov khoom siv, lub zog, thiab kev ncaj ncees ntawm cov qauv. Kab lus no tshawb txog ntau yam kev sim uas tuaj yeem ua tau los soj ntsuam thiab txheeb xyuas cov txiv ntoo welds.
- Tensile Testing: Kev ntsuam xyuas Tensile feem ntau yog siv los ntsuas cov khoom siv kho tshuab thiab lub zog ntawm cov pob qij txha welded. Nyob rau hauv qhov kev sim no, ib tug series ntawm welded qauv yog raug rau tensile rog mus txog rau thaum tsis ua hauj lwm. Cov txiaj ntsig tau muab cov ntaub ntawv hais txog qhov kawg tensile lub zog, tawm los lub zog, elongation, thiab tawg tus cwj pwm ntawm cov welds, pab ntsuam xyuas lawv tag nrho cov kev ua tau zoo thiab tsim nyog rau daim ntawv thov npaj.
- Shear Testing: Kev ntsuam xyuas shear yog tsim tshwj xeeb los ntsuas lub zog shear thiab tsis kam ntawm qhov chaw welds. Qhov kev sim no suav nrog kev xa cov qauv welded mus rau lub zog shearing kom txog thaum tsis ua tiav. Cov ntaub ntawv tau txais, suav nrog shear load, hloov pauv, thiab hom tsis ua haujlwm, ua rau kev txiav txim siab ntawm lub vuam lub zog shear thiab nws lub peev xwm los tiv thaiv cov khoom siv.
- Microstructural Analysis: Microstructural tsom xam tso cai rau kev soj ntsuam ntawm cov weld tus qauv sab hauv thiab muab kev nkag siab rau nws cov qauv nplej, thaj chaw muaj kev kub ntxhov, thiab tej yam muaj peev xwm los yog tsis sib xws. Cov txuj ci xws li metallography, microscopy, thiab scanning electron microscopy (SEM) tuaj yeem siv los soj ntsuam thiab txheeb xyuas cov weld's microstructure, pab ntsuas nws qhov zoo thiab txheeb xyuas cov teeb meem uas yuav cuam tshuam rau nws txoj haujlwm.
- Kev Ntsuas Hardness: Kev ntsuas hardness yog ua los ntsuas qhov hardness faib thoob plaws thaj tsam weld. Qhov kev ntsuam xyuas no pab ntsuas qhov kev sib koom ua ke ntawm cov txheej txheem thiab ntsuas qhov muaj qhov muag muag lossis ib qho nyuaj uas yuav cuam tshuam nws lub zog thiab kav ntev. Cov txuj ci zoo li Vickers lossis Rockwell kuaj qhov tawv tawv tuaj yeem ua haujlwm los ntsuas qhov ntsuas qhov tawv tawv thiab txheeb xyuas qhov txawv ntawm qhov sib koom ua ke.
- Non-Destructive Testing (NDT): Cov txheej txheem tsis muaj kev puas tsuaj, xws li kev kuaj ultrasonic, eddy tam sim no kuaj, lossis kuaj radiographic, tuaj yeem siv los ntsuas qhov zoo ntawm cov welds yam tsis muaj kev puas tsuaj. Cov txheej txheem no tuaj yeem txheeb xyuas qhov tsis xws luag, xws li cov kab nrib pleb, voids, lossis kev suav nrog, ua kom cov welds ua tau raws li cov qauv thiab cov kev qhia tshwj xeeb.
Ua cov kev sim tom qab vuam yog qhov tseem ceeb rau kev ntsuas qhov zoo, lub zog, thiab kev ncaj ncees ntawm cov txiv ntoo qhov chaw welds. Kev ntsuam xyuas tensile, shear test, microstructural analysis, hardness testing, and non-destructive testing yog cov txheej txheem tseem ceeb uas muab cov ntaub ntawv tseem ceeb ntawm cov khoom siv welds, cov qauv sab hauv, thiab muaj peev xwm tsis xws luag. Los ntawm kev ua cov kev sim no, engineers thiab welders tuaj yeem ua kom cov welds ua tau raws li cov qauv xav tau thiab cov kev xav tau, yog li ua kom lawv ntseeg tau thiab ua tau zoo hauv kev siv tiag tiag.
Post lub sij hawm: Jun-15-2023
