FE-NI ALLOY HAVING EXCELLENT SURFACE PROPERTIES AND METHOD OF PRODUCING SAME, AND MOLD FOR CFRP

WIPO Patent Application WO/2022/190814

A1

The present invention pertains to an Fe-Ni alloy containing 0.001-0.2 mass% of C, 0.001-0.2 mass% of Si, 0.005-0.7 mass% of Mn, 30.0-45.0 mass% of Ni, 0.3 mass% or less of Cr, 0.001-0.1 mass% of Al, 0.001-0.020 mass% of Ti, 0.007 mass% or less of O, 0.0030 mass% or less of Mg, 0.010 mass% or less of N, 0.0015 mass% or less of Ca, and 0.00005-0.001 mass% of Na, the remaining portion being Fe and unavoidable impurities. The alloy contains nonmetal inclusions of a CaO-SiO2-Al2O3-MgO-MnO-Na2O-based complex oxide as an essential component, and contains, as an optional component, nonmetal inclusions of at least one among CaO, MgO, MgO·Al2O3, MnO·SiO2, and Na2O. Of all nonmetal inclusions in the alloy, the count proportion of CaO-SiO2-Al2O3-MgO-MnO-Na2O inclusions is 40% or more. Accordingly, the Fe-Ni alloy has excellent surface properties.

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JPH0796684	[Title of the Invention] A method for manufacturing a CrNi ferritic stainless steel sheet steel having excellent surface quality.
JPH09155407	MANUFACTURE OF FERRITIC STAINLESS STEEL SHEET EXCELLENT IN R VALUE

KIRIHARA FUMIAKI (JP)
MIZUNO KENJI (JP)

PCT/JP2022/006565

September 15, 2022

February 18, 2022

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NIPPON YAKIN KOGYO CO LTD (JP)

B21B3/02; B22D11/00; C21C7/00; C21C7/04; C21C7/06; C21C7/064; C21D9/46; C22C38/00; C22C38/50

JP3499349B2	2004-02-23
JP3247338B2	2002-01-15
JP3597777B2	2004-12-08
JP3881626B2	2007-02-14
JP4261601B2	2009-04-30

SUENARI, Mikio (JP)

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