(1) Advanced high-quality medium carbon steel. Cov pa roj carbon cov ntsiab lus ntawm cov hlau no (qhov loj feem, %) yog ntau dua lossis sib npaug rau 0.4. Nws muaj zoo heev hnav tsis kam thiab txo ductility. Nws yooj yim rau deform thiab tawg tom qab quenching, yog li quenching tseem ceeb heev. Nws yuav tsum tau quenched tom qab txiav thiab tempering. Kom tsis txhob temper brittleness.
Qhov kev ua tau zoo ntawm hom carbon hlau no tuaj yeem txhim kho los ntawm kev siv spheroidization. Cov hlau no feem ntau yog tempered rau hardness ntawm 19 ~ 22HRC ua ntej siv los ua kom nws cov kev ua tau zoo.
(2) Japanese tus qauv channel steel hardness yuav tsum: 180-280HBW
(3) Qhov yuav tsum tau ua ntawm Japanese tus qauv channel steel: Qhov zoo ntawm qhov chaw thiab qhov tso cai sib txawv ntawm cov duab geometric ntawm channel steel yog tshwj xeeb hauv cov qauv. Nws yog feem ntau yuav tsum tau yuav tsum tsis txhob muaj teeb meem tsis xws luag nyob rau saum npoo thiab tsis muaj qhov tseem ceeb torsion. Nws teev tus nqi tso cai ntawm corrugated khoov (sickle khoov) ntawm cov channel steel thiab cov tsis muaj feem cuam tshuam (h, b, d, t, thiab lwm yam) ntawm cov duab ntawm cov channel steel ntawm txhua qhov tshwj xeeb. Tus nqi, kam rau ua tus nqi. Lub ntsiab tshwm sim ntawm qhov tsis raug channel steel geometry yog: cov ces kaum, ceg nthuav dav, thiab ceg sib koom ua ke, thiab lwm yam.
(4) Japanese txuj channel steel muaj zoo machinability thiab cutability.
