718 pwmhlau 718 yas pwm hlau tsim los ntawm Sweden ASSAB muaj cov khoom siv kho tshuab, kev siv tshuab, thiab cov thev naus laus zis yooj yim, yog li nws siv dav hauv kev ua pwm thiab kev lag luam tsim khoom. Tsis tas li ntawd, 718 tuag hlau tau raug ua ntej kom tawv txog 41 ~ 47HRC tom qab tawm hauv lub Hoobkas los ntawm cov txheej txheem tsim khoom tshwj xeeb, uas tuaj yeem txo cov kev sib txuas kho cua sov hauv qee qhov project thiab txhim kho cov txiaj ntsig kev lag luam.

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

Lub xeev Hoobkas: ASSAB 718 HB: 290-310

Cov xwm txheej xa khoom: Cov hlau raug xa tuaj rau hauv lub xeev annealed. Tom qab kev pom zoo sib koom, kev xa khoom kuj tuaj yeem ua tiav yam tsis muaj annealing.

718 hlau yog ib hom hlau Swedish ASSAB uas tau ua kom tawv ua ntej lawm, uas tiv taus kua qaub thiab ua kom tawv tsis tau. Cov hlau no tau ua kom tawv ua ntej lawm, muaj cov khoom sib xws, huv si, ua kom ci ntsa iab thiab kos duab tau zoo. Nws kuj muaj peev xwm tawv tau zoo, ua tau hluav taws xob zoo thiab ua tau dermatoglyph zoo. Cov hlau uas tau ua kom tawv ua ntej lawm kuj siv tau rau hauv qhov tuag yam tsis tas siv tshuaj tua kab, thiab lub flange tuaj yeem ua kom tawv ua rau tawv mus txog 52HRC.

Cov hlau no muaj peev xwm ua tau zoo thiab tsis yooj yim hnav, thiab muaj qhov nyuaj faib sib npaug. Nws kuj muaj kev ua haujlwm polishing zoo, siv tshuab ua yooj yim thiab tus nqi nruab nrab, yog li ntawd cov tshuaj ntau.