Kub dov yog txheeb ze rau cov ntsiab lus ntawm txias-dov, txias-dov yog nyob rau hauv lub recrystallization kub hauv qab dov, thiab kub dov yog nqa tawm nyob rau saum toj ntawm lub recrystallization kub dov.

Qhov zoo:

Kub dov tuaj yeem ua rau cov cam khwb cia microstructure ntawm steel ingot, refinement ntawm cov khoom siv lead ua ntawm cov hlau, thiab tshem tawm qhov tsis xws luag ntawm microstructure, kom lub koom haum steel compacting, txhim kho cov khoom siv kho tshuab.Qhov kev txhim kho no tau cuam tshuam rau hauv cov kev taw qhia dov, kom cov hlau tsis muaj nyob rau qee yam isotropic;pouring tsim ntawm npuas, tawg, thiab pob txha pob txha, nyob rau hauv qhov kub thiab txias kuj yuav welded ua ke.

Qhov tsis zoo:
Tom qab kub dov, cov nonmetallic inclusions nyob rau hauv lub sab hauv ntawm ib tug hlau (tsuas yog sulfides thiab oxides, raws li zoo raws li silicate) raug nias rau hauv ib daim ntawv, stratified (laminated) tshwm sim tshwm sim.Cov txheej txheej ntawm cov hlau nyob rau hauv thickness kev taw qhia los ntawm kev rub kev ua tau zoo heev, thiab tej zaum yuav tshwm sim nyob rau hauv lub weld shrinkage interlayer tsim kua muag.Weld shrinkage induced hauv zos strain feem ntau ncav cuag ob peb lub sij hawm lub yield point strain, lub strain yog ntau ntau tshaj qhov load tshwm sim;
2 Cov kev ntxhov siab uas tshwm sim los ntawm qhov tsis sib xws.Qhov seem kev ntxhov siab yog qhov kev ntxhov siab ntawm sab hauv tus kheej-theem sib npaug ntawm qhov tsis muaj kev quab yuam sab nraud, cov hlau kub-khoov ntawm ntau qhov hla-sectional muaj kev ntxhov siab seem xws li feem ntau steel sectional dimension yog qhov ntau dua, qhov ntau dua qhov residual stresses.Residual stress yog tus kheej-theem equilibrium, tab sis cov tswv cuab steel nyob rau hauv kev ua tau zoo sab nraud quab yuam los yog muaj tej yam kev cuam tshuam.Xws li deformation, stability, los tiv thaiv qaug zog yuav adversely.
3 Cov khoom kub-kuav los tiag steel, tswj tsis zoo ntawm thickness thiab ntug dav.Peb paub txog cov thermal expansion thiab contraction, txawm tias qhov pib ntawm qhov kub-dov tawm yog cov qauv ntev, tuab, los yog yuav muaj qee qhov tsis zoo kawg tom qab txias, qhov kev sib txawv tsis zoo ntawm ntug dav dav ntawm qhov nce thickness ntawm kev ua tau zoo pom tseeb dua.Yog li rau cov hlau loj rau steel ntug dav, thickness, ntev, lub kaum sab xis, thiab sideline tsis muaj txoj cai yuav tsum tau meej heev.Kub-dov hlau dav hlau, qis thiab nruab nrab siab boiler yeeb nkab, siab siab boiler kav, steel kav, stainless hlau yeeb nkab, roj tawg yeeb nkab, geological steel kav thiab lwm yam steel yeeb nkab.