Apparatus for nitriding surface of shaped article of titanium

Details Apparatus for nitriding surface of shaped article of titanium Apparatus for nitriding surface of shaped article of titanium

1987-02-24

1988-09-06

Brody, Christopher W.

Metallurgical apparatus

Means treating solid metal

By contact with gas

266274, C71D 900

Patent

active

047687576

ABSTRACT:
A nitride layer is formed on the surface of a shaped article of titanium by a method which comprises bringing nitrogen gas into contact with the shaped article of titanium in a heated state. The nitrogen gas, en route to the site of contact with the shaped article of titanium, is preparatorily caused to come into contact and react with small particles of titanium so as to be deprived of such extraneous components as hydrogen and oxygen and consequently converted into pure nitrogen gas. This pure nitrogen gas is introduced into contact with the shaped article of titanium in a heated state to effect the nitriding of the surface of the shaped article. An apparatus to be used in effecting the nitriding treatment by the method of this invention is also disclosed.

REFERENCES:
patent: 4528043 (1985-07-01), Mills
Journal of the Japan Institute of Metals, vol. 43, No. 10, 938-947, (1979).
The Journal of the Japanese Society for Dental Material and Device, vol. 3, No. 1, 71-78, (1984).

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