Hlau hlau thiabhlau hlaumuaj ntau yam zoo sib xws, tab sis ua tib zoo paub qhov txawv, yuav pom tias lawv tsis tsuas yog sib txawv ntawm cov khoom siv, tab sis kuj nyob rau hauv cov khoom yam ntxwv ntawm qhov sib txawv loj.Yog li thaum xaiv, nco ntsoov ua kom pom tseeb qhov txawv ntawm ob.Steel hlau Hoobkas qhia steel hlau carbon structural steel ua saum toj no, feem ntau tsis galvanized, siv rau machinery, caij nplooj ntoos hlav.Dub, tawv heev;Hlau: ua los ntawm cov hlau me me (mild steel), galvanized, siv rau kev sib koom ua ke thiab khi.Dawb thiab mos.
Qhov sib txawv tseem ceeb ntawm ob yog cov ntsiab lus carbon.Cov ntsiab lus carbon ntawm hlau yog 2.11 feem pua lossis ntau dua, thaum cov ntsiab lus carbon ntawm hlau yog 2.11 feem pua lossis tsawg dua.Cov hlau carbon hlau nrog cov ntsiab lus carbon siab tshaj 2.11% yog hlau cam khwb cia (npua hlau), uas yog qhov yooj yim tsis tuaj yeem thiab tsis tuaj yeem kos rau hauv cov hlau.Qhov thib ob, cov ntsiab lus ntawm impurities txawv.Cov ntsiab lus ntawm teeb meem impurities xws li sulfur thiab phosphorus hauv hlau yog me dua.Hlau hlau xim xim tsom, hlau hlau xim lub teeb taw tes, dawb taw tes.
Lub neej ntawm "xaim", yog qhov tseeb "tsawg carbon steel hlau", cov ntsiab lus carbon tsawg dua 0.2%.Qhov saum npoo feem ntau yog coated nrog zinc plating vim nws yooj yim rau xeb.Nyob rau hauv atmospheric tej yam kev mob, galvanized txheej yuav tsis xeb ua ntej feem ntau ntawm lub caij nplooj zeeg tawm, kuj mos.Lub neej ntawm "steel hlau", yog cov ntsiab lus carbon nyob rau hauv li 0.6% ntawm "carbon steel hlau", los yog cov ntsiab lus carbon nyob rau hauv li 0.8% ntawm "high carbon steel hlau", lawv muaj txaus hardness thiab elasticity tom qab tsim nyog kho cua sov. , siab zog.Siv xws li winding dog dig caij nplooj ntoos hlav thiab hais txog.
Post lub sij hawm: 28-02-23