NM400 / NM 450 kwambara isahani irwanya ibyuma
NM450 ni isahani ikomeye yo kwambara.
Kwita Izina: N ni ukurwanya (nai), M ninyuguti ya mbere ya pinyin yinyuguti ebyiri zishinwa zo gusya (mo),
na 450 byerekana impuzandengo ya Brinell ikomeye yiyi plaque
Kuvura ubushyuhe: ubushyuhe bwo hejuru ubushyuhe, kuzimya + ubushyuhe (kuzimya no gutuza)
Gusaba: isahani ya NM450 idashobora kwambara ikoreshwa cyane mu mashini zicukura amabuye y'agaciro, imashini zicukura amakara,
imashini zo kurengera ibidukikije, imashini zubaka, nibindi, kandi nazo zikunze gukoreshwa nkimbaraga nyinshi
ibyuma byubaka nimbaraga zitanga umusaruro ≥850MPa.
Imikorere: Nugutanga cyane cyane kurinda mubihe cyangwa ibice bikenera kwihanganira kwambara, kugirango ubuzima bwa
ibikoresho ni birebire, igihe cyo kubungabunga cyatewe no kubungabunga kiragabanuka, nishoramari
ni Kugabanuka.
Imikorere: Umusaruro urenze 950, naho imbaraga zingana ni 1180.
NM450 ihuye n’ibipimo by’amahanga n’amanota JFE: NK-EH450 / HARDOX450 / DILLDUR: 450V
Ibigize imiti:
| Icyiciro | Imiti ya Compsition (Max%) | ||||||||||
| C | Si | Mn | P | S | Cr | Ni | Mo | Ti | B | Als | |
| ≤ | Urwego | ＞ | |||||||||
| NM300 | 0.23 | 0.7 | 1.6 | 0.025 | 0.015 | 0.7 | 0.5 | 0.4 | 0.05 | 0.0005-0.006 | 0.01 |
| NM360 | 0.25 | 0.7 | 1.6 | 0.025 | 0.015 | 0.8 | 0.5 | 0.5 | 0.05 | 0.0005-0.006 | 0.01 |
| NM400 | 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 |
| NM500 | 0.38 | 0.7 | 1.7 | 0.02 | 0.01 | 1.2 | 1 | 0.65 | 0.05 | 0.0005-0.006 | 0.01 |
| NM550 | 0.38 | 0.7 | 1.7 | 0.02 | 0.01 | 1.2 | 1 | 0.7 | 0.05 | 0.0005-0.006 | 0.01 |
| NM600 | 0.45 | 0.7 | 1.9 | 0.02 | 0.01 | 1.5 | 1 | 0.8 | 0.05 | 0.0005-0.006 | 0.01 |
Ibikoresho bya mashini:
| Icyiciro | Umubyimba mm | Imbaraga Zoroheje min Mpa | Imbaraga min Mpa | Kurambura (%) | Ingaruka -20 ° KV2/J | HBW |
| NM300 | ≤80 | ≥800 | ≥1000 | ≥14 | ≥24 | 270-330 |
| NM360 | ≤80 | ≥800 | ≥1100 | ≥12 | ≥24 | 330-390 |
| NM400 | ≤80 | ≥800 | ≥1200 | ≥10 | ≥24 | 370-430 |
| NM450 | ≤80 | ≥800 | ≥1250 | ≥7 | ≥24 | 420-480 |
| NM500 | ≤70 | ~ | ~ | ~ | ~ | ≥470 |
| NM550 | ≤70 | ~ | ~ | ~ | ~ | ≥530 |
| NM600 | ≤60 | ~ | ~ | ~ | ~ | ≥570 |
Amashusho yerekana:
Gupakira no gupakira:
Porogaramu nyamukuru:
1) Imashini nubwubatsi: umutwaro, bulldozer, excavator, isahani yindobo, isahani yuruhande,
indobo isahani yo hasi, icyuma, hamwe nisahani.
2) Gutwara no gupakurura imashini n'ibikoresho: gupakurura isahani y'urunigi, isahani ya plaque, gufata icyuma,
ikigereranyo giciriritse cyikora ikamyo itwara isahani
3) Imashini zubaka nibikoresho: isahani yinyo ya pisitori ya sima, isahani yumurongo wa mixer ya beto, isahani yumurongo wa
kuvanga hasi, isahani yumurongo wumukungugu
4) Imashini n'ibikoresho bya metallurgiki: gucukura amabuye y'icyuma atanga inkokora, imashini icumura ibyuma,
scraper lining
5) Imashini zicukura amabuye y'agaciro n'ibikoresho: ubutare, amabuye asya amabuye, ibyuma.
6) Ibindi bikoresho byubukanishi: ingunguru yumucanga, ibyuma, ibice bidashobora kwambara byimashini zitandukanye
7) Ibikoresho byamashanyarazi: isahani yamakara, icyuma cyamakara, umuyoboro wo gukwirakwiza amakara, uwagabanije amakara
gride, ibikoresho byo gupakurura amakara biri ku isahani
8) Kurasa imashini n'ibikoresho: kurasa imashini iturika
