SURFACE-TREATED TOOL STEEL FOR DIE CASTING OF METAL

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United States of America

APP PUB NO 20250075301A1
SERIAL NO

18788958

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Abstract

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A tool steel comprises iron (Fe); carbon (C) in a range from 0.001 wt % to 0.1 wt %; copper (Cu) in a range from 0.2 wt % to 2.0 wt %; nickel (Ni) in a range from 3 wt % to 10 wt %; aluminum (Al) in a range from 0.5 wt % to 3 wt %; manganese (Mn) in a range from 0.2 wt % to 1.5 wt %; chromium (Cr) in a range from 0 to 1.5 wt %; molybdenum (Mo) in a range from 0 to 1.5 wt %; tungsten (W) in a range from 0 to 1.5 wt %; and niobium (Nb) in a range from 0 to 0.2 wt %. A transition layer is arranged on the steel substrate. Metal of the transition layer includes Ni in a range from 5 to 20 wt % copper in a range from 1 to 5 wt %. One of an oxide layer and an oxide/nitride layer is arranged on the transition layer.

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Patent Owner(s)

Patent OwnerAddress
GM GLOBAL TECHNOLOGY OPERATIONS LLC300 RENAISSANCE CENTER MAIL CODE 482-C23-B21 DETROIT MI 48265-3000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
LIU, Lianqian Suzhou, CN 4 1
PANG, Jiachen Shanghai, CN 7 11
WANG, Jianfeng Nanjing, CN 280 3358
WANG, Zhou Shanghai, CN 81 481
YI, Hongliang Suzhou, CN 19 26

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