Q235 sawv cev li cas?
Q235yog ib hom carbon structural steel qib. "Q" stands rau "yield point," thiab "235" sawv cev rau qhov tsawg kawg nkaus yield zog, ntsuas hauv megapascals (MPa). Nws yog lub npe hu rau nws cov kev ua tau zoo tag nrho, suav nrog superior weldability thiab formability.
Cov txheej txheem "kub dov" hais txog dab tsi?
Kub dov yog txheej txheem hlau ua haujlwm uas siv qhov kub siab tshaj ntawm cov khoom siv recrystallization kub los ua kom cov hlau ntau dua thiab yooj yim rau kev tsim. Nyob rau hauv kub dov, cov hlau billet yog rhuab thiab ces flattened, stretched, thiab tsim los ntawm rolls, thaum kawg ua tau cov yam xav tau coils, tuav, los yog daim hlau.
Lub hom phiaj tseem ceeb ntawm "galvanizing" yog dab tsi?
Lub hom phiaj tseem ceeb ntawmgalvanizingyog tiv thaiv hlau los yog hlau los ntawm corrosion los ntawm txheej nws nrog ib txheej ntawm zinc. Cov txheej txheem no ua rau muaj kev cuam tshuam, thiab vim tias zinc yog electropositive ntau dua li hlau, nws kuj muab kev tiv thaiv anodic sacrificial, tiv thaiv corrosion ntawm cov hlau hauv qab thiab txuas ntxiv nws lub neej kev pab cuam.
Dab tsi yog qhov txawv ntawm "welded yeeb nkab" thiab "seamless yeeb nkab"?
Qhov tseem ceeb sib txawv yog nyob rau hauv cov txheej txheem: welded kav yog tsim los ntawm forging ca hlau strips rau hauv cov hlab thiab ces welding cov seams, hos seamless kav yog tsim los ntawm ib tug steel billet tsis muaj tej pob qij txha los yog welds.
Dab tsi yog qhov zoo ntawm galvanized steel yeeb nkab piv rau lwm cov ntaub ntawv (xws li carbon steel)?
Lub ntsiab kom zoo dua ntawmgalvanized steel yeeb nkabtshaj cov pa roj carbon steel lies nyob rau hauv nws superior corrosion kuj, ua tsaug rau zinc tiv thaiv txheej ntawm nws nto, uas ho expands nws cov kev pab cuam lub neej nyob rau hauv ib puag ncig ntub. Lwm qhov zoo muaj xws li: qis pib thiab lub neej- cov nqi voj voog piv rau lwm yam corrosion- cov ntaub ntawv tiv taus; thiab durability ntau dua.
