Lub taub hau txias, ib txoj kev tseem ceeb ntawm kev tsim hlau, feem ntau yog siv cov yas deformation ntawm cov hlau nyob rau hauv sab nraud quab yuam; los ntawm kev ua hauj lwm tuag, hlau blanks yog zoo li tus yuav tsum tau cov ntaub ntawv thiab qhov ntev. Raws li cov txheej txheem no feem ntau yog ua nyob rau hauv chav tsev kub, nws raug xaiv raws li "txias taub hau."
Cov txheej txheem tsim khoom pib los ntawm kev muab cov hlau dawb paug rau hauv qhov tuag kab noj hniav ntawm lub tshuab txias taub hau. Nyob rau hauv lub siab loj heev, cov dawb paug undergoes yas deformation, maj mam sau cov kab noj hniav kom thaum kawg tsim ib feem uas ua tau raws li cov qauv specifications. Vim tias cov hlau deforms nyob rau hauv chav tsev kub, qhov tshwm sim tau khaws cov khoom zoo tshaj plaws thiab qhov tseeb qhov tseeb, thaum tsis txhob muaj qhov tsis xws luag xws li oxidation thiab decarburization feem ntau cuam tshuam nrog kev ua haujlwm kub.
Txias-headed qhov chaw muaj ntau yam zoo. Ua ntej, cov txheej txheem boasts siab ntau lawm efficiency, ua kom ceev, siab - ntim tsim cov duab complex kom tau raws li qhov xav tau ntau lawm. Qhov thib ob, qhov siab precision thiab zoo heev ntawm qhov chaw ntawm cov khoom no txo qhov kev xav tau rau cov kauj ruam tom ntej machining, yog li txo cov nqi tsim khoom. Tsis tas li ntawd, cov txheej txheem txias taub hau txhim kho kev siv cov khoom siv thiab txo cov khoom pov tseg, ua raws li cov qauv ntawm kev tsim ntsuab.