Invention Grant
- Patent Title: Pipe having heat-resistant and corrosion-resistant plating layer that has excellent workability
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Application No.: US14408111Application Date: 2013-06-27
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Publication No.: US09611972B2Publication Date: 2017-04-04
- Inventor: Yasushige Ishii
- Applicant: USUI KOKUSAI SANGYO KAISHA LIMITED
- Applicant Address: JP Shimizu-cho, Sunto-gun
- Assignee: USUI KOKUSAI SANGYO KAISHA LIMITED
- Current Assignee: USUI KOKUSAI SANGYO KAISHA LIMITED
- Current Assignee Address: JP Shimizu-cho, Sunto-gun
- Agent Gerald E. Hespos; Michael J. Porco; Matthew T. Hespos
- Priority: JP2012-150831 20120704
- International Application: PCT/JP2013/067670 WO 20130627
- International Announcement: WO2014/007139 WO 20140109
- Main IPC: F16L9/02
- IPC: F16L9/02 ; F16L58/08 ; C25D7/04 ; C25D5/14 ; C25D5/48 ; C25D11/38 ; C23C28/00

Abstract:
Provided is a pipe having a heat-resistant and corrosion-resistant multi-layered plated layer excellent in workability. The pipe includes a multi-layered plated layer including: a ZnNi alloy plated layer that has a Ni content of 5% to 9% and a layer thickness of 3 μm to 9 μm and is formed as a first layer on a surface of a base steel pipe; another ZnNi alloy plated layer that has a Ni content of 10% to 15% and a layer thickness of 1 μm to 3 μm and is deposited as a second layer on the ZnNi alloy plated layer formed as the first layer; and a chromate film that is formed on the ZnNi alloy plated layer formed as the second layer.
Public/Granted literature
- US20150144220A1 PIPE HAVING HEAT-RESISTANT AND CORROSION-RESISTANT PLATING LAYER THAT HAS EXCELLENT WORKABILITY Public/Granted day:2015-05-28
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