Cov ntawv kub dov steel yog cov khoom siv hlau ntawm cov qauv geometric yooj yim tshaj plaws, uas yog cov khoom siv nrov heev hauv kev tsim khoom niaj hnub no. Cov khoom lag luam tau pom daim ntawv thov nyob rau hauv ntau qhov chaw ntawm kev lag luam, hauv architecture, kev tsim kho, pej xeem thiab tub rog aviation, hauv kev tsim tsheb, tshuab cuab yeej, choj kev tsim kho, kev ua haujlwm tiav thiab tsim.
Qhov nrov ntawm cov khoom no feem ntau yog vim tus nqi qis ntawm cov ntawv kub dov. Feem ntau, cov khoom yog yuav rau kev ua haujlwm ntxiv. Piv txwv li, hlau yog ncab thiab txiav, yog li tau txais ib daim ntawv xuas nrig ntaus, los ntawm txoj kev laj kab, fittings, staircases thiab lwm yam khoom tom qab. Cov ntawv zoo-tsim kub-kuav los tiag tuaj yeem tiv taus dov, xuas nrig ntaus thiab kos duab.
Hauv kev tsim cov khoom siv hlau yog coj los ntawm cov kev xav tauxeev cov qauv. Rau kev tsim cov ntawv kub dov steel, kub dov tshuab yog siv. Txhawm rau tsim cov khoom siv, ob qho tib si qis-alloyed thiab cov pa roj carbon steel yog siv. Cov ntawv kub dov yog tsim los ntawm kev kho siab ntawm cov hlau rhuab mus rau qhov kub siab ntawm calibrated los yog du yob. Cov khoom ntawm hom no yog muab rau hauv yob los yog ntawv.
Cov ntawv kub dov muaj cov yam ntxwv hauv qab no. Raws li qhov tseeb ntawm dov, ob chav kawm ntawm cov ntaub ntawv no yog qhov txawv ntawm qhov tuab txog li 1.2 centimeters. Class A suav nrog cov khoom uas muaj qhov tseeb, thiab qeb B - nrog rau qhov qub. Cov yam ntxwv zoo ntawm cov khoom muaj xws li qhov tsawg kawg nkaus qhov tseem ceeb ntawm kev tiv thaiv (ib ntus).
Dhau li ntawm no, muaj ib lub phaj tuab, uas muab faib ua rau pawg. Thawj tsib tus yam ntxwv ntawm kev tsim cov ntawv kub dov. Cov qeb kawg suav nrog cov khoom uas muaj zog ntxiv. Cov ntaub ntawv yog tsim nyob rau hauv ib txwm, siab thiab ntxiv siab flatness.
Cov txheej txheem nyuaj tshaj plaws ntawm kev tsim cov ntawv kub dov steel pib nrog qhov tau txais cov khoob (slabs) ntawm lub tuam txhab hlau ua haujlwm. Cov khoom no feem ntau yog nrum los ntawm carbon lossis hlau alloy.
Thaum pib, cov blanks tau rhuab mus rau qhov xav tau qhov kub thiab txias, uas nyob ntawm qhov muaj pes tsawg leeg ntawm cov hlau thiab qhov xav tau. Kev ua tsis tau raws li qhov xwm txheej no yuav ua rau txo qisqhov zoo ntawm cov khoom tiav.
Nyob rau theem tom ntej, cov slabs raug xa mus rau ib lub tshuab dov, nrog kev pab los ntawm cov hlau billets tau muab qhov loj thiab cov duab. Nyob rau hauv tsos, cov ntawv kub-dov yuav txawv nyob ntawm seb qhov profile thiab yob siv nyob rau hauv ntau lawm. Cov hlau kub tau txais qhov xav tau tuab hauv cov txheej txheem ntawm kev txav mus los ntawm lub tshuab dov. Hauv qhov no, muaj ob theem ntau lawm: roughing thiab xov. Yog tias kev txiav cov npoo tsis sib xws tsis tau ua, ces daim ntawv kub dov raug cais raws li cov qauv kev ua haujlwm tsis zoo.
