Method of and apparatus for processing metal material

Details Method of and apparatus for processing metal material Method of and apparatus for processing metal material

1995-02-02

1996-08-13

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148287, 148249, C23C 818

Patent

active

055452647

ABSTRACT:
The invention relates to a method and apparatus for processing a metal material. In the present invention, a chlorine hydrocarbon solution, water and surfactant solution are mixed together. As an alternative to chlorine hydrocarbon solution, methylene chloride solution may be used. The mixture solution is heated to generate chlorine hydrocarbon gas, water vapor or steam and surfactant gas. The gas mixture fills a hermetically sealed processing tank and permeates a metal material, particularly, a steel material or iron powder disposed in the processing tank. Thus, impurities in open areas of crystal cells of the metal material are dissolved and removed. Then an indissoluble film composed of anticorrosive rust is formed on the surface of the metal material. Where the metal material is steel or iron powder, the anticorrosive rust primarily comprises triiron tetroxide (Fe.sub.3 O.sub.4). To produce magnetic material by the process of the present invention, iron material such as iron powder is converted into triiron tetroxide (Fe.sub.3 O.sub.4), namely magnetite, or diiron trioxide (.gamma.-Fe.sub.2 O.sub.3), namely maghemite.

REFERENCES:
patent: 2543710 (1951-02-01), Schimdt et al.

Affiliated with

Also associated with

Rating

Method of and apparatus for processing metal material 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 of and apparatus for processing metal material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for processing metal material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1045579