Patent ID: 9346240
Filing Date: 2016-05-24
CPC Classification: B22F,B32B,C22C,Y10T

Claim Text:
1. A method for manufacturing an open-porous metal foam, comprising: providing a semi-product that does not include chromium and aluminum or include a smaller amount than an amount in powder of an iron-chromium-aluminum alloy and is formed of iron or an iron-based alloy; uniformly coating a surface and an opened pore of the semi-product that is formed of the iron or the iron-based alloy with the powder of the iron-chromium-aluminum alloy and an organic binding agent; discharging excessive organic binding agent by heat treating the semi-product that is formed of the coated iron or iron-based alloy under a reducing atmosphere at a temperature of 300 to 600° C.; and sintering the semi-product that is formed of the iron or the iron-based alloy from which the excessive organic binding agent are discharged at the temperature of 900° C. or more.