Title: High temperature resistant diffusion coating

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Claims: What is claimed is:

1. The process of pack aluminizing method workpieces at temperatures of about 1000.degree.F or below using an aluminum halide enerigizer selected from the group consisting of aluminum chloride, aluminum bromide, aluminum iodide or hydrated derivatives thereof, wherein the energizer is held in at least one porous container placed in the pack.

2. The combination of claim 1 in which the container is out of contact with the workpieces.

3. The combination of claim 1 in which the energizer is aluminum chloride.

4. The combination of claim 1 in which the container is made of a metal that does not appreciably diffuse into the workpieces during the aluminizing.

5. The combination of claim 1 in which the container is made of aluminum or stainless steel.

6. The combination of claim 2 in which the energizer is aluminum chloride.

7. The combination of claim 1 in which the workpieces are chromium-containing steel.

8. The combination of claim 6 in which the workpieces are chromium-containing steel and the container is made of aluminum or stainless steel.
Other info:

Inventors: Baldi, Alfonso L. (Drexel Hill, PA, US)

Application Number: 304220
Filing Date: 1972-11-06
Publication_date: 1976-02-03
Assignee: Alloy Surfaces Company, Inc. (Wilmington, DE)
Primary Class(es): 427/253 118/715, 148/283
Other Classes:
US Patent Ref:

1902503	Mar, 1933	Howe	117/107.
3096160	Jul, 1963	Puyear	117/107.
3286684	Nov, 1966	Aves	117/107.

Other Refs: 1,182,407

Feb, 1970	UK

Primary Examiner: Schulz, William E.
Assistant Examiner:
Attorney: Connolly and Hutz