Feem ntau ntawm qhov tshwm sim ntawm vuam deformation yog tshwm sim los ntawm asymmetry ntawm tshav kub generated los ntawm vuam thiab expansion tshwm sim los ntawm txawv tshav kub. Tam sim no peb tau txheeb tawm ntau txoj hauv kev los tiv thaiv vuam deformation raws li hauv qab no rau kev siv:
1. Txo qhov ntu ntu ntawm qhov vuam thiab siv qhov me me bevel loj (lub kaum sab xis thiab qhov sib txawv) kom ntau li ntau tau thaum tau txais kev ua tiav thiab tsis muaj qhov cuam tshuam ntau dhau ntawm tus qauv.
2. Siv txoj kev vuam nrog cov cua sov me me. Xws li: CO2 roj tiv thaiv vuam.
3. Siv ntau txheej vuam es tsis txhob siv ib txheej txheej vuam thaum twg ua tau thaum vuam tuab daim hlau.
4. Thaum cov qauv tsim tau ua tau raws li qhov yuav tsum tau ua, qhov vuam ntawm qhov ntev ntawm qhov cuab lub zog ribs thiab transverse reinforcement ribs tuaj yeem ua tau los ntawm kev sib tshuam vuam.
5.Thaum ob tog tuaj yeem welded, yuav tsum tau siv ob-sided symmetrical bevels, thiab ib qho kev sib txuas ntawm vuam uas yog symmetrical rau nruab nrab thiab axial Cheebtsam yuav tsum tau siv thaum lub sij hawm ntau txheej vuam.
6. Thaum T-shaped sib koom phaj yog thicker, qhib bevel lub taub qab vuam siv.
7. Siv txoj kev tiv thaiv deformation ua ntej welding los tswj lub angular deformation tom qab vuam.
8. Siv cov khoom siv nruj nruj kom tswj tau tom qab vuam deformation.
9. Siv txoj kev tshwj tseg ntev ntawm cov khoom tivthaiv los them rau qhov ntev ntawm qhov shrinkage thiab deformation ntawm vuam. Piv txwv li, 0.5 ~ 0.7 hli tuaj yeem khaws cia rau ib lub 'meter' ntawm H-shaped longitudinal weld.
10. Rau distortion ntawm cov tswv cuab ntev. Nws tsuas yog tso siab rau kev txhim kho lub tiaj tus ntawm lub rooj tsavxwm thiab kev sib dhos qhov tseeb ntawm cov khoom kom ua rau lub kaum sab xis thiab qhov tseeb. Kev taw qhia lossis qhov chaw nruab nrab ntawm lub arc yog qhov tseeb kom lub vuam lub kaum sab xis deformation thiab qhov ntev ntawm qhov deformation qhov tseem ceeb ntawm lub tis thiab lub vev xaib yog raws li qhov ntev ntawm cov khoom siv.
11. Thaum vuam lossis kev teeb tsa ntawm cov khoom siv nrog cov welds ntau dua, yuav tsum tau txais ib qho kev sib txuas uas tsim nyog.
12. Thaum vuam nyias daim hlau, siv cov vuam hauv dej. Ntawd yog, lub pas dej molten yog ib puag ncig los ntawm kev tiv thaiv roj hauv dej, thiab cov dej nyob ze raug tshem tawm tag nrho los ntawm cov roj los xyuas kom meej tias cov vuam yog nqa tawm ib txwm. Los ntawm kev siv txoj kev no, cov hlau nyob ib ncig ntawm lub pas dej ua kua yog txias los ntawm cov dej hauv lub sijhawm, thiab tus nqi deformation yog tswj los ntawm qhov me me (lub circulating coolant yog ntxiv rau sab nraud ntawm vuam sab kom tshem tawm cov cua sov los ntawm vuam).
13. Multi-theem symmetrical vuam, uas yog, vuam ib ntu, nres ib pliag, vuam mus rau sab nraud, nres ib ntus.
Lub sij hawm xa tuaj: Mar-10-2025