Qib 8 Carbon Steel Hex Ceev

Hauv kev lag luam ntawm kev tsim khoom thiab kev tsim vaj tsev sib sau ua ke, Qib 8 txiv ntoo tau dhau los ua tus qauv fastener rau nruab nrab - rau - siab load applications, ua tsaug rau lawv lub zog txhim khu kev qha thiab tus nqi nruab nrab. Lawv qhov kev ua tau zoo yog nyob ntawm kev xaiv cov khoom siv; Qib 8 cov txiv ntoo feem ntau yog tsim los ntawm nruab nrab - carbon steel lossis alloy steel thiab tau txais kev kho cua sov kom ua tiav cov khoom siv kho tshuab uas yuav tsum tau ua -ib qho kev sib xyaw ua ke uas ua kom muaj zog thaum ntsuas qhov toughness thiab machinability.

Cov ntaub ntawv uas tau xaiv rau Qib 8 txiv ntseej yuav tsum ua tau raws li ob lub ntsiab lus tseem ceeb: lub zog tensile (Ntau dua lossis sib npaug ntawm 800 MPa) thiab lub zog tawm los (Ntau dua lossis sib npaug ntawm 640 MPa). Yuav kom ua tiav qhov no, manufacturers feem ntau siv ob hom hlau:

Nruab nrab- carbon steel (piv txwv li, Qib 35 lossis 45 steel): Nrog cov ntsiab lus carbon ntawm 0.35% - 0.45%, cov hlau no tuaj yeem ua tiav qhov hnyav dua los ntawm kev quenching thiab tempering. Lawv muab cov nqi qis thiab kev ua haujlwm zoo, ua rau lawv tsim nyog rau tus nqi-sensitive, dav dav- lub hom phiaj siv xws li cov cuab yeej siv tshuab thiab cov khoom siv hlau.

Alloy steel (xws li ML35CrMo, 40Cr): Cov hlau no suav nrog cov ntsiab lus alloying xws li chromium (Cr) thiab molybdenum (Mo) los txhim kho lub zog thiab txhim kho kev qaug zog. Alloy steel txiv ntseej yog qhov zoo dua rau cov cheeb tsam uas cuam tshuam nrog kev thauj khoom dynamic-xws li lub cav tsheb thiab cov khoom siv cua tshuab hluav taws xob- qhov twg cov khoom yuav tsum tiv taus kev co thiab kev cuam tshuam ntev.