NM400 / NM 450 hnav tsis kam steel phaj
NM450 yog lub zog siab hnav phaj.
Lub npe: N yog rau kev tawm tsam (nai), M yog thawj tsab ntawv pinyin ntawm ob lub cim Suav rau kev sib tsoo (mo),
thiab 450 sawv cev rau qhov nruab nrab Brinell hardness ntawm no steel phaj
Kev kho cua sov: kub tempering, quenching + tempering (quenching thiab tempering)
Daim ntawv thov: NM450 hnav-resistant steel phaj yog dav siv hauv mining machinery, thee mining machinery,
ib puag ncig tiv thaiv machinery, kev tsim kho machinery, thiab lwm yam., thiab kuj yog feem ntau siv raws li high-lub zog
Cov qauv hlau nrog cov khoom muaj zog ≥850MPa.
Muaj nuj nqi: Nws yog tsuas yog muab kev tiv thaiv nyob rau hauv lub sij hawm los yog qhov chaw uas yuav tsum tau hnav tsis kam, thiaj li hais tias lub neej ntawm
cov cuab yeej siv tau ntev dua, kev saib xyuas kev poob qis los ntawm kev saib xyuas raug txo, thiab kev nqis peev peev
yog correspondingly txo.
Kev ua tau zoo: Cov txiaj ntsig tau ntau dua 950, thiab lub zog tensile yog 1180.
NM450 sib raug rau cov qauv txawv teb chaws thiab qib JFE: NK-EH450 / HARDOX450 / DILLDUR: 450V
Tshuaj muaj pes tsawg leeg:
| Qib | Compsition Chemical (Max%) | ||||||||||
| C | Si | Mn | P | S | Cr | Ni | Mo | Ti | B | Als | |
| ≤ | Ntau yam | ＞ | |||||||||
| NM 300 | 0.23 | 0.7 | 1.6 | 0.025 | 0.015 | 0.7 | 0.5 | 0.4 | 0.05 | 0.0005-0.006 | 0.01 |
| NM 360 | 0.25 | 0.7 | 1.6 | 0.025 | 0.015 | 0.8 | 0.5 | 0.5 | 0.05 | 0.0005-0.006 | 0.01 |
| NM 400 | 0.3 | 0.7 | 1.6 | 0.025 | 0.01 | 1 | 0.7 | 0.5 | 0.05 | 0.0005-0.006 | 0.01 |
| NM450 | 0.35 | 0.7 | 1.7 | 0.025 | 0.01 | 1.1 | 0.8 | 0.55 | 0.05 | 0.0005-0.006 | 0.01 |
| NM 500 | 0.38 | 0.7 | 1.7 | 0.02 | 0.01 | 1.2 | 1 | 0.65 | 0.05 | 0.0005-0.006 | 0.01 |
| NM 550 | 0.38 | 0.7 | 1.7 | 0.02 | 0.01 | 1.2 | 1 | 0.7 | 0.05 | 0.0005-0.006 | 0.01 |
| NM 600 | 0.45 | 0.7 | 1.9 | 0.02 | 0.01 | 1.5 | 1 | 0.8 | 0.05 | 0.0005-0.006 | 0.01 |
Mechanical Properties:
| Qib | Thickness mm | Yeild zog min Mpa | Tensile zog kuv Mpa | Elongation (%) | cuam tshuam -20 ° KV2/J | HBW |
| NM 300 | ≤80 | ≥800 | ≥1000 | ≥14 | ≥24 | 270-330 : kuv |
| NM 360 | ≤80 | ≥800 | ≥1100 | ≥12 | ≥24 | 330-390 : kuv |
| NM 400 | ≤80 | ≥800 | ≥1200 | ≥10 | ≥24 | 370-430 : kuv |
| NM450 | ≤80 | ≥800 | ≥1250 | ≥7 | ≥24 | 420-480 : kuv |
| NM 500 | ≤70 | ~ | ~ | ~ | ~ | ≥470 |
| NM 550 | ≤70 | ~ | ~ | ~ | ~ | ≥530 |
| NM 600 | ≤60 | ~ | ~ | ~ | ~ | ≥570 |
Cov duab ntau lawm:
Packing thiab Loading:
Daim ntawv thov tseem ceeb:
1) Kev tsim kho tshuab thiab khoom siv: loader, bulldozer, excavator, thoob phaj, sab ntug phaj,
lub thoob hauv qab phaj, hniav, thiab sill phaj.
2) Chaw thau khoom thiab tshem tawm cov khoom siv thiab cov khoom siv: tshem tawm zeb saw phaj, hopper hauv ob sab phlu, tuav hniav phaj,
nruab nrab-qhov loj me tsis siv neeg pob tseg tsheb tipping phaj
3) Kev tsim kho tshuab thiab khoom siv: hniav phaj ntawm cov cement pusher, hauv ob sab phlu ntawm qhob tov khoom, hauv ob sab phlu ntawm
sib tov pem teb, hauv ob sab phlu phaj ntawm plua plav collector
4) Metallurgical machinery thiab khoom siv: hlau ore sintering conveying luj tshib, hlau ore sintering tshuab hauv ob sab phlu,
scraper hauv ob sab phlu
5) Mining machinery thiab khoom siv: ore, pob zeb crusher hauv ob sab phlu, hniav.
6) Lwm yam khoom siv tshuab: xuab zeb zeb chim, hniav, hnav-tiv taus qhov chaw ntawm ntau qhov chaw nres nkoj machinery
7) Cov khoom siv hluav taws xob cua sov: thee zeb hauv ob sab phlu, thee hopper, thee faib yeeb nkab, thee faib xa tawm
daim phiaj, thee unloading khoom siv hauv ob sab phlu
8) Txhaj tshuaj tua blasting tshuab thiab khoom siv: tua blasting tshuab liner
