718 pwmsteel 718 yas pwm steel tsim los ntawm Sweden ASSAB muaj cov khoom siv kho tshuab, kev ua haujlwm, thiab kev ua haujlwm yooj yim, yog li nws tau siv dav hauv kev ua pwm thiab kev lag luam ntau lawm.Tsis tas li ntawd, 718 tuag steel tau ua ntej hardened rau qhov hardness ntawm 41 ~ 47HRC tom qab tawm hauv lub Hoobkas los ntawm cov txheej txheem tsim tshwj xeeb, uas tuaj yeem txo cov kev sib txuas ntawm kev kho cua sov hauv qee qhov haujlwm thiab txhim kho cov txiaj ntsig kev lag luam.

Henglei 718 tuag steel, peb lub teb chaws 3Cr2NiMo yog ib qho kev txhim kho steel qib los ntawm P20 (3Cr2Mo), thiab nws cov kev ua tau zoo tau zoo heev los ua kom tiav cov kev tsis txaus ntawm P20 tuag steel thiab ua tau raws li lub sijhawm uas P20 tuag steel tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua.Ntxiv nrog rau cov lus hais saum toj no Suav cov qauv steel qib, cov qib steel tam sim no tshwm sim hauv pwm steel lag luam hauv kuv lub teb chaws yog P20 + Ni.Sweden's 718, 718H (ASSAB), PX5\PX4 (Nyiv Datong Tshwj Xeeb Steel), GS-711, GS-738, GS-312, GS-318 (Lub teb chaws Yelemees Thyssen), Austria's M238 ECOPLUS (Bai Lu Company), CS718 (China Great Phab Ntsa Tshwj Xeeb Steel), SWP20 (Shanghai No. 5 Steel Company), thiab lwm yam, yog li ntxiv rau qhov tsis siv rau cov pwm yas nrog cov kev xav tau ntawm corrosion, nws yog tam sim no qib steel rau dav siv dav siv yas pwm. hlau.Nws feem ntau hu ua "yas pwm steel", thiab cov qib tshiab tsim tshiab steel feem ntau siv nws los ua qhov sib piv.

Lub Hoobkas: ASSAB 718 HB: 290-310

Kev xa khoom raws li txoj cai: Cov hlau yog xa hauv lub xeev annealed.Tom qab kev sib cog lus, kev xa khoom tuaj yeem ua tiav yam tsis muaj annealing.

718 steel yog Swedish ASSAB pre-hardened daim iav acid-pov thawj yas pwm hlau.Cov hlau yog pre-hardened, nrog cov khoom sib xws, siab huv, polishing kev ua tau zoo thiab kev ua haujlwm duab kos duab.Nws kuj muaj cov hardenability siab, zoo hluav taws xob ua kev ua tau zoo thiab dermatoglyph ua kev ua tau zoo.Pre-hardened steel kuj tseem siv tau rau hauv qhov tuag kab noj hniav yam tsis muaj quenching, thiab cov flange tuaj yeem ua cov nplaim tawv tawv kom nce qhov tawv rau 52HRC.

Cov hlau muaj zoo machinability thiab hnav tsis kam, thiab uniform hardness faib.Nws kuj muaj kev ua haujlwm zoo polishing, kev ua haujlwm yooj yim thiab tus nqi nruab nrab, yog li qhov ntau npaum li cas.