Method for sintering a carbon steel part using a...

Details Method for sintering a carbon steel part using a... Method for sintering a carbon steel part using a...

2005-11-22

2005-11-22

Jenkins, Daniel (Department: 1742)

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Plural heating steps including sintering

C419S036000, C419S038000, C075S246000

Reexamination Certificate

active

06967001

ABSTRACT:
The invention refers to a new method for preparing sintered structural parts of carbon or tool steels or high speed steel having a carbon content of up to 2% by weight, wherein an agglomerated spherical powder comprising at least 0.5% of a thermo-reversible hydrocolloid is pressed to a green body of high density which is then heated at 450–650° C. to remove the non-carbon content of the hydrocolloid and subsequently sintered at about 1100–1400° C. to structural parts having high strength properties.

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patent: 3811878 (1974-05-01), Chao et al.
patent: 3989518 (1976-11-01), Rueckl
patent: 4797251 (1989-01-01), Sakuramoto et al.
patent: 5258151 (1993-11-01), Bayer et al.
patent: 5460641 (1995-10-01), Åslund et al.
patent: 5734959 (1998-03-01), Krebs et al.
patent: 5744532 (1998-04-01), Kankawa et al.
patent: WO 99/36214 (1999-07-01), None
An Introduction to Metallurgy, 2nd ed., Joseph Newton, 1947, p. 201.

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