Welded yeeb nkab ntau lawm txheej txheem khiav:
Welded yeeb nkab, tseem hu ua welded steel yeeb nkab, yog cov yeeb nkab steel ua los ntawm kev siv vuam tshuab los yob lub phaj steel los yog sawb rau hauv lub raj zoo, thiab tom qab ntawd flatten, curl, weld, thiab theem nws.
Feem ntau, cov txheej txheem ntawm welded kav yog muab faib ua peb txheej txheem: kub dov, txias dov thiab txias txias. Ntawm lawv, cov kav dej kub-dov welded yog ua los ntawm kub dov steel strips welded ntawm qhov kub thiab txias, thiab txias-dov welded kav yog ua los ntawm txias-dov hlau strips welded ntawm chav tsev kub. Cold drawn welded kav yog tsim los ntawm txias txheej txheem tom qab vuam.
Welded yeeb nkab cov ntaub ntawv thiab cov yam ntxwv:
Cov khoom siv raw ntawm cov kav dej welded feem ntau yog cov hlau hlau dub (dub steel kav), uas nws cov khoom tseem ceeb yog carbon thiab manganese. Thaum lub sij hawm welding txheej txheem, muaj pes tsawg leeg ntawm welded sib koom ua ke hloov, thiab tshuaj lom neeg tshwm sim ntawm carbon thiab lwm yam ntsiab. Yog li ntawd, qhov chaw welded feem ntau muaj kev cuam tshuam rau corrosion tshaj qhov chaw uas tsis yog-welded.
Welded kav yog dav siv vim lawv lub teeb yuag, tus nqi qis, siab zog thiab ua haujlwm yooj yim. Txawm li cas los xij, vim muaj kev hloov pauv hauv cov txheej txheem vuam thiab kev cuam tshuam ntawm cov yeeb nkab muaj pes tsawg leeg, cov khoom siv lub cev ntawm cov kav welded qee zaum muaj qee qhov tsis zoo.
Cov kav dej welded tuaj yeem ua los ntawm kub dov lossis txias dov.
Kub dov yog dov saum cov hlau recrystallization kub, thaum txias dov yog dov hauv qab cov hlau recrystallization kub. Sab nrauv phab ntsa ntawm cov yeeb nkab welded feem ntau yog ua los ntawm kub dov, thiab sab hauv phab ntsa feem ntau yog ua los ntawm txias dov los xyuas kom meej smoothness thiab tsis muaj seams.
Lub ntsiab sib txawv ntawm kub dov thiab txias dov yog tias kub dov muaj ib tug qeeb txoj kev ceev thiab tsis tshua muaj tso zis, tab sis lub toughness thiab plasticity ntawm cov dov hlau yog zoo dua; thaum txias dov muaj kev sib sau ceev ceev thiab cov zis siab, tab sis lub hardness thiab lub zog ntawm cov dov steel yuav txo qis. tau pom kev nce ntxiv.
