Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Controlled cooling after sintering
Patent
1994-11-14
1997-02-11
Jordan, Charles T.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Controlled cooling after sintering
419 38, 419 56, 419 57, 75228, 75243, 75246, B22F 316
Patent
active
056030720
ABSTRACT:
Fe-based alloy powder suitable for manufacturing sintered products with excellent corrosion resistance for example, which comprises by weight percentage of not more than 0.03% of C; not more than 2% of Si; not more than 0.5% of Mn; from 8 to 28% of Ni; from 15 to 25% of Cr; from 3 to 8% of Mo; optionally at least one of not more than 5% of Cu; not more than 3 % of Sn; not more than 2% of Nb and not more than 2% of Ti; and the balance being Fe and incidental impurities. The Fe-based alloy powder is sintered in an inert gas such as Ar or H.sub.2, or in an atmosphere of N.sub.2 with pressure of 1 to 10 torr after being compacted. A sintered compact sintered in an atmosphere of N.sub.2 with pressure of higher than 10 torr and not higher than 200 torr is cooled at cooling rate of higher than 50.degree. C./min.
REFERENCES:
patent: 3620690 (1971-11-01), Bergstrom
patent: 3993445 (1976-11-01), Reen
patent: 4014680 (1977-05-01), Reen
patent: 4028094 (1977-06-01), Reen et al.
patent: 4340432 (1982-07-01), Hede
patent: 4420336 (1983-12-01), Klar et al.
patent: 4614638 (1986-09-01), Kuroishi et al.
patent: 4964908 (1990-10-01), Greekham
patent: 4964909 (1990-10-01), Engstrom et al.
patent: 5108492 (1992-04-01), Kiyota et al.
patent: 5338508 (1994-08-01), Nitta et al.
Asano Mitsuaki
Kouno Tomio
Carroll Chrisman D.
Daido Tokushuko Kabushiki Kaisha
Jordan Charles T.
LandOfFree
Method for producing Fe-based sintered body with high-corrosion does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing Fe-based sintered body with high-corrosion , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing Fe-based sintered body with high-corrosion will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-351269