US2013280548A1PendingUtilityA1
Bent metal member and a method for its manufacture
Est. expiryJan 21, 2029(~2.5 yrs left)· nominal 20-yr term from priority
Inventors:Toyomitsu NakamuraAtsushi TomizawaNaoaki ShimadaNobusato KojimaKazuya IshiiKazuhito ImaiTamotsu Toki
C21D 8/10B21D 7/162Y10T428/1241Y10T428/12292B32B 1/08C23C 26/00C21D 9/08B22F 5/00B21D 7/08B21D 7/16C23C 2/06C23C 2/26C23C 2/28C23C 2/29
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Claims
Abstract
A bent metal member has a body formed from a tubular metal material and has a shape which is bent two-dimensionally or three-dimensionally. The surface of the body has a Zn-based coating which contains an η phase and which satisfies the following condition: coating weight: at most 90 g/m 2 per side, Fe content: 8-35 mass %, and a surface roughness Ra prescribed by WS B 0601: at most 2.0 μm. The bent metal member can have a closed cross section, an open cross section, or a shaped cross section.
Claims
exact text as granted — not AI-modified1 . (canceled)
2 . A bent metal member having a body formed from a tubular metal material and having a shape which is bent two-dimensionally or three-dimensionally, characterized in that the surface of the body has a Zn-based coating which contains an η phase and which satisfies the following Condition 2:
Condition 2
Coating weight: at most 90 g/m 2 per side
Fe content: 8-35 mass %
Surface roughness Ra prescribed by JIS B 0601: at most 2.0 μm.
3 . A bent metal member as set forth in claim 2 having a closed cross section, an open cross section, or a shaped cross section.Cited by (0)
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