Method for producing molybdenum bearing ferrochromium

Details Method for producing molybdenum bearing ferrochromium Method for producing molybdenum bearing ferrochromium

1979-09-04

1981-04-07

Rosenberg, P. D.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

751305, C22C 3300, B23K 3534

Patent

active

042604184

ABSTRACT:
An improved method for producing a low carbon, low nitrogen ferrochromium containing molybdenum. The method comprises the steps of blending particles of high carbon ferrochromium and particles of an oxygen and molybdenum bearing compound, heat treating the blend in a vacuum at temperatures of 1600.degree. F. or over, and pressures of 10 torr or below, and cooling the blend. The improvement of this invention comprises the use of a high carbon ferrochromium and an oxygen and molybdenum bearing compound as the original materials.

REFERENCES:
patent: 2473019 (1949-06-01), Erasmus
patent: 2473021 (1949-06-01), Spendelow
patent: 2541153 (1951-02-01), Chadwick
patent: 2797156 (1957-06-01), Saunders
patent: 3595709 (1971-07-01), Sordillo
patent: 3635699 (1972-01-01), Chadwick
patent: 3725051 (1973-04-01), Chadwick
patent: 4008104 (1977-02-01), Nakamura
patent: 4050960 (1977-09-01), Nakamura
patent: 4124378 (1978-11-01), Kurdowski
Chadwick, "Manufacture of Simplex Ferrochrome by the Vacuum Process", Transaction of the Vacuum Metallurgy Conference, pp. 221-231 (1963).
Katayama et al., "Production of Ultra Low Nitrogen Ferrochrome", Transactions of the Iron and Steel Institute of Japan, pp. 347-354 (1979).

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