PROCESS FOR PRODUCING COMMON RAIL, AND COMMON RAIL

Title:

PROCESS FOR PRODUCING COMMON RAIL, AND COMMON RAIL

Document Type and Number:

WIPO Patent Application WO/2010/103772

Kind Code:

A1

Abstract:

A process for producing a common rail comprising a common-rail main body and a holder therefor, the main body and the holder containing, as chemical components, 0.01-0.3 mass% carbon, 0.01-0.5 mass% silicon, 0.01-3.0 mass% manganese, 0.0003-0.01 mass% boron, 0.001-0.01 mass% nitrogen, 0.01-0.5 mass%, excluding 0.01 mass%, aluminum, and 0.01-0.05 mass% titanium, having a phosphorus content reduced to 0.03 mass% or lower, a sulfur content reduced to 0.01 mass% or lower, an oxygen content reduced to 0.01 mass% or lower, and a total content of arsenic, tin, antimony, lead, and zinc reduced to 0.015 mass% or lower, with the remainder being iron and incidental impurities, and having a TLB value of 0.001% or higher. The process comprises an insert-metal insertion step, a liquid-phase diffusion bonding step, a laser peening step, and a surface-layer removal step.

Inventors:

HIRANO KOJI (JP)
SUGIHASHI ATSUSHI (JP)
IMAI HIROFUMI (JP)
HASEGAWA YASUSHI (JP)

Application Number:

PCT/JP2010/001572

Publication Date:

September 16, 2010

Filing Date:

March 05, 2010

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)
HIRANO KOJI (JP)
SUGIHASHI ATSUSHI (JP)
IMAI HIROFUMI (JP)
HASEGAWA YASUSHI (JP)

International Classes:

F02M55/02; B23K20/00; B23K26/12; B23K26/352; B23K31/00; C21D1/09; C21D7/06; C22C38/00; C22C38/14; C22C38/60; C22C45/02; C22C45/04

Foreign References:

JP2007040244A	2007-02-15
JP2004083980A	2004-03-18
JP2006322446A	2006-11-30
JP2007040244A	2007-02-15
JP2004083980A	2004-03-18
JP2004204714A	2004-07-22
JP2004027968A	2004-01-29
JP3373638B2	2003-02-04
JP2006322446A	2006-11-30

Other References: