Process for producing granular material and shaped parts from ha

Details Process for producing granular material and shaped parts from ha Process for producing granular material and shaped parts from ha

1997-03-24

1999-01-12

Jenkins, Daniel J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

419 13, 419 14, 419 16, 419 23, 419 57, 419 58, 419 2, B22F 310

Patent

active

058600558

ABSTRACT:
In a process for producing granular material in which at least one hard material phase is mixed with a metal powder and a binder and granulated, no premixing of the hard material phase and the metal powder takes place before mixing with the binder and the binder has a viscosity of from 20 to 200 cm.sup.3 /10 min, preferably from 30 to 100 cm.sup.3 /10 min, in accordance with DIN 53735 at 195.degree. C. and a load of 2.16 kg.

REFERENCES:
patent: 5397531 (1995-03-01), Peiris et al.
patent: 5415830 (1995-05-01), Zhang et al.
patent: 5525293 (1996-06-01), Kagawa et al.
patent: 5574959 (1996-11-01), Tsujioka et al.
patent: 5603071 (1997-02-01), Kitagawa et al.
patent: 5604919 (1997-02-01), Sterzel et al.
patent: 5641920 (1997-06-01), Hens et al.
patent: 5665289 (1997-09-01), Chung et al.
patent: 5678165 (1997-10-01), Wu

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