Low-pressure cementation method

Details Low-pressure cementation method Low-pressure cementation method

2006-10-10

2006-10-10

King, Roy (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

C148S235000

Reexamination Certificate

active

07118634

ABSTRACT:
The invention relates to a low-pressure carburising method comprising alternating low-pressure enrichment steps and diffusion steps in the presence of a neutral gas. During the enrichment steps, an enriching gas and neutral gas mixture is used, the proportion of the neutral gas being between 5 and 50% by volume of the enriching gas. The enriching gas can be, for example, acetylene (C2H2).

REFERENCES:
patent: 1799614 (1931-04-01), Coberly
patent: 4035203 (1977-07-01), L'Hermite et al.
patent: 4322255 (1982-03-01), Kostelitz
patent: 4472209 (1984-09-01), Langerich et al.
patent: 6258179 (2001-07-01), Takayama et al.
patent: 0 080 124 (1983-06-01), None
patent: 0 532 386 (1993-03-01), None
patent: 0 818 555 (1998-01-01), None
patent: 0 408 511 (1998-03-01), None
patent: 0 882 811 (1998-12-01), None
patent: 2 678 287 (1992-12-01), None
patent: 2678287 (1992-12-01), None
patent: 1 510 481 (1978-05-01), None
patent: 1 559 690 (1980-01-01), None
patent: 2000-336469 (2000-12-01), None

Affiliated with

Also associated with

Rating

Low-pressure cementation method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-pressure cementation method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-pressure cementation method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3718073