发明名称 |
COMPOSITE ROLL FOR USE IN ROLLING AND MANUFACTURE THEREOF |
摘要 |
<p>A composite roll for use in hot rolling which is excellent in the resistance to surface roughening, wherein the outer layer of the roll is made from a steel comprising 1.5 to 2.4 wt% of carbon, 3 to 6 wt% of vanadium, 10 to 20 wt% of at least one element selected among chromium, molybdenum and tungsten, and optionally a seeding material comprising 0.05 to 0.20 wt% of aluminum and/or 0.02 to 0.10 wt% of titanium, and the balance of iron and inevitable impurities, and the texture of the outer layer comprises a metallic texture which has a particle grain diameter of 30 to 150 <0>m and is enclosed by a eutectic carbide crystallized out in the grain boundary or in which primary carbide crystals are further dispersed and crystallized out in the basic texture of the above crystal. <IMAGE></p> |
申请公布号 |
EP0533929(B1) |
申请公布日期 |
1997.09.10 |
申请号 |
EP19910911197 |
申请日期 |
1991.06.13 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
HASHIMOTO, MITSUO;OTOMO, SEIJI;AYAGAKI, MASATOSHI;SAWADA, KENZO;UCHIDA, SHIGERU |
分类号 |
B32B15/01;(IPC1-7):C22C37/00;C22C37/06 |
主分类号 |
B32B15/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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