Xaiv ntawm cov khaub thuas dov thiab galvanized steel

Hauv daim teb cov ntaub ntawv hlau, galvanized steel ntawv thiab khaub thuas dov steel ntawv yog ob dav siv tab sis cov khoom sib txawv tab sis cov khoom sib txawv tab sis cov khoom sib txawv. Txias rolled steel ntawv sawv cev rau daim ntawv yooj yim ntawm cov ntawv steel yog ib qho khoom siv steel yog tsim los ntawm kev kho cov ntawv txias ntawm cov ntawv txias.

Qhov sib txawv ntawm kev tsim cov txheej txheem

(1) Cov ntawv txias dov hlau: kev ua tiav los ntawm dov

Txias rolled steel ntawv ntau lawm siv kub dov steel ntawv li cov khoom siv raw. Los ntawm ntau cov kev hla ntawm yob ntawm chav tsev kub (dov kub

Rolling txheej txheem: Kub dov slab (tuab 3-8 mm) yog dov los ntawm ciab dov zeb kom 0.15-3.0 hli. Tus lej ntawm cov kev hla nyob ntawm lub hom phiaj tuab (nyias cov lus qhia yuav tsum tau 5-8 kis). Txhua daim ntawv hla txo cov tuab los ntawm 15% -30%. Los ntawm kev deformation yas, cov nplej tau ua kom zoo nkauj thiab lub zog zoo dua.

Annealing kev kho mob: Tom qab muab txias txias, cov ntawv steel txheej txheem txo cov plasticity vim ua haujlwm tawv. Nruam kev txuas ntxiv (kub) yog qhov yuav tsum tau ua kom tiav cov ntsiab lus, tso cai sib txawv cov xeev kom tiav (mos, {{nyuaj, nyuaj).

Cov txheej txheem ua tiav: suav nrog qib (txhim kho flagness, tswj cov tiaj tiaj,.. Μm), thiab lwm yam, thiab lwm yam qhov ntev.

Tus tseem ceeb ntawm lub colding txias yog kom ua tiav ntawm steel los ntawm kev sib xyaw ua ke, tsis hloov cov khoom sib xyaw ua tshuaj los ntawm kev kho mob. Nws yog cov khoom siv tshiab "rau cov hlau sib sib zog nqus.

(2) Galvanized steel ntawv:Corrosion - Tsis kam hloov kho los ntawm kev kho deg

Galvanized steel ntawv tsuas yog siv khaub ncaws txias rolled steel ntawv raws li nws substrate (tshaj 90%), thiab cov txheej txheem galvanizing muab corrosion tsis kam. Cov txheej txheem tseem ceeb tau muab faib ua kub kub- dip galvanizing thiab electro {} galvanizing:

Kub - dip galvanizing: lub substrate undergoes degreasing (tuab}}}}}} Cov Zinc Txheej metallurgically nrog lub substrate nrog lub substrate, ua tiav nplaum lub zog siab dua 80 n / cm.

ERCROOS - galvanizing: nyob rau hauv ib qho zinc {{} ion electrolyte, electrolysis tso lub ntsej muag ntshiab zinc (5-50 g / m²) nyob rau sab npoo. Lub zinc txheej yog lub cev ua ke nrog adhesion lub zog ntawm 30-50 n / cm, tsim ib smoother nto (ra0.1-0.5 μm).

Lub ntsiab ntawm Galvanizing yog kev sib sau cov txheej zinc ntawm cov ntawv txias siv hlau, hloov mus rau hauv "corrosion {{}} resistant steel." Cov txheej txheem galvanizing cuam tshuam nrog 3-5 ntxiv cov kauj ruam kev kho mob ntxiv piv rau cov ntawv txias rolled steel ntawv.

Kev sib raug zoo ntawm Galvanized steel thiab txias rolled steel

Galvanized steel ntawv thiab khaub thuas dov steel ntawv yog tsis hloov cov txheej txheem, tab sis cov khoom lag luam ntawm cov theem sib tw ntawm cov hlau ua cov saw hlau. Txias rolled steel ntawv yog "yooj yim version," kev tsim kev ua tau zoo ntau yam. Galvanized steel ntawv yog lub "hloov kho tshiab," kev daws teeb meem corrosion. Nkag siab txog lawv cov txheej txheem sib txawv, thiab cov yam ntxwv ua tau zoo, thiab xaiv tau ob qho khoom lag luam thiab kev tswj hwm thaum cov khoom siv cov khoom siv ntau.

Txij li thaum nws tsim xyoo 2008,Gnee steelTau tshwj xeeb hauv kev lag luam thoob ntiaj teb ntawm txias - rolled galvanized steel khoom. Peb cov kev pabcuam zoo thiab kev ua haujlwm ruaj khov tau khwv tau txoj kev cia siab ntawm cov neeg yuav khoom hauv ntau tshaj 160 lub teb chaws thoob ntiaj teb. Peb txias-} rolled galvanized steel cov khoom, thiab txias}}} Cov khoom siv txias, thiab cov khoom siv hluav taws xob, thiab cov cuab yeej siv hluav taws xob.