Deformation yog ib qho kev txhawj xeeb nyob rau hauv cov txiv ntoo qhov chaw vuam, qhov twg cov welded Cheebtsam yuav raug hloov pauv tsis xav tau vim muaj ntau yam. Kab lus no delves rau hauv cov laj thawj tom qab vuam-induced deformation thiab muab cov kev daws teeb meem zoo los txo qhov teeb meem no.
- Thaum tshav kub kub Concentration: Ib qho ntawm thawj qhov ua rau deformation hauv cov txiv ntoo qhov chaw vuam yog qhov concentration ntawm cov cua sov hauv cheeb tsam hauv cheeb tsam thaum lub sij hawm vuam. Qhov kub ntau dhau no tuaj yeem ua rau thermal expansion, ua rau warping lossis khoov ntawm lub workpiece.
- Cov Vuam tsis sib xws: Cov vuam tsis raug lossis tsis sib xws, xws li vuam tam sim no ntau dhau lossis lub sijhawm vuam ntev, tuaj yeem ua rau cov cua sov tsis sib xws thiab tom qab deformation ntawm cov welded qhov chaw. Kev ntsuas ntsuas kom raug yog qhov tseem ceeb kom ua tiav qhov sib npaug ntawm cov cua sov.
- Cov Khoom Siv Khoom Ua Haujlwm: Cov khoom sib txawv muaj qhov sib txawv ntawm cov thermal conductivities thiab nthuav coefficients, uas tuaj yeem cuam tshuam lawv qhov cuam tshuam rau deformation thaum vuam. Kev sib xyaw ntawm cov khoom tsis sib haum tuaj yeem ua rau muaj teeb meem deformation ntau dua.
- Fixturing tsis txaus: Kev kho tsis tiav lossis tsis raug clamping ntawm lub workpieces tuaj yeem ua rau lub zog ntau dhau thaum vuam, ua rau misalignment thiab deformation.
- Tsis sib xws Vuam Siab: Tsis sib xws lub siab faib thaum lub sij hawm vuam yuav ua rau tsis sib xws kev sib txuas thiab ua rau deformation, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv nyias los yog muag heev.
- Residual Stress: Vuam-induced residual stresses hauv cheeb tsam sib koom ua ke kuj tuaj yeem ua rau deformation. Cov kev ntxhov siab sab hauv no tuaj yeem so thaum lub sijhawm ua haujlwm, ua rau cov khoom ua haujlwm tsis zoo lossis cuam tshuam.
- Txias tus nqi: Qhov txias txias sai sai tom qab vuam tuaj yeem ua rau thermal shock, ua rau deformation hauv qhov chaw welded.
Hais txog Deformation: Txhawm rau txo qhov deformation hauv cov txiv ntoo qhov chaw vuam, ntau yam kev ntsuas tuaj yeem siv tau:
ib. Optimize Welding Parameters: Ua tib zoo teeb tsa thiab tswj cov vuam tsis sib xws, xav txog cov khoom siv thiab kev sib koom ua ke, kom ua tiav cov cua sov sib txawv.
b. Siv Kev Txhim Kho Tsim Nyog: Xyuas kom cov workpieces ruaj khov thiab ua kom zoo thaum lub sij hawm vuam kom txo qis kev txav thiab deformation.
c. Tswj Vuam Siab: Ua kom zoo sib xws thiab tsim nyog vuam siab kom ua tau zoo thiab ruaj khov welds.
d. Preheat lossis Kev Kho Mob Tom Qab Kub Kub: Xav txog preheating lossis tom qab vuam kev kho cua sov kom txo tau cov kev ntxhov siab thiab txo qis kev pheej hmoo ntawm deformation.
e. Tswj Cooling: Siv cov txheej txheem tswj kom txias kom tiv thaiv kev hloov pauv sai sai thiab txo qis deformation.
Deformation nyob rau hauv cov txiv ntseej qhov chaw vuam tuaj yeem raug ntaus nqi rau cov yam ntxwv xws li kub siab, qhov tsis sib xws ntawm vuam tsis sib xws, cov khoom siv, fixturing, vuam siab, residual stress, thiab txias npaum li cas. Los ntawm kev nkag siab txog cov laj thawj no thiab siv cov kev ntsuas tsim nyog, xws li kev txhim kho vuam tsis zoo, siv kev kho kom raug, thiab kev siv cov kev tswj kom txias, cov neeg ua haujlwm tuaj yeem txo cov teeb meem deformation, ua cov welds zoo nrog tsawg distortion thiab ua tiav cov txiaj ntsig xav tau hauv ntau daim ntawv thov.
Post lub sij hawm: Aug-07-2023
