Method and apparatus for controlling electrode drive speed in a

Details Method and apparatus for controlling electrode drive speed in a Method and apparatus for controlling electrode drive speed in a

1980-06-20

1981-12-01

Envall, Jr., R. N.

13 9ES, H05B 7152

Patent

active

043037976

ABSTRACT:
A method and apparatus for controlling electrode drive speed in a consumable electrode furnace. The electrode drive speed is regulated at a base speed computed from measured changes in physical characteristics of the electrode or ingot, such as changes in weight, as the melt proceeds. The base speed also takes into consideration the known geometry of the electrode, the furnace mold or crucible, the density of the ingot material, and the speed of movement of the bottom of the ingot if any. This base speed is increased or decreased by a trim speed determined from measurement of an electrical phenomenon associated with the consumable electrode process, which electrical phenomenon has a relatively long term value related to the distance between the bottom surface of the electrode and the top surface of the ingot.

REFERENCES:
patent: 2726278 (1955-12-01), Southern
patent: 2904718 (1959-09-01), Cooper et al.
patent: 2942045 (1960-06-01), Johnson
patent: 3186043 (1965-06-01), Murtland, Jr. et al.
patent: 3187078 (1965-06-01), Murtland, Jr. et al.
patent: 3246070 (1966-04-01), Wooding
patent: 3272905 (1966-09-01), Wooding
patent: 3277229 (1966-10-01), Oppenheim
patent: 3364295 (1968-01-01), Roberts
patent: 3372224 (1968-03-01), Jackson et al.
patent: 3375318 (1968-03-01), Kjolseth et al.
patent: 3381079 (1968-04-01), Murtland, Jr. et al.
patent: 3431344 (1969-03-01), Borrebach
patent: 4075414 (1978-02-01), Thomas
patent: 4131754 (1978-12-01), Roberts
patent: 4194078 (1980-03-01), Thomas
A System for the Automatic Measurement & Control of Melt Rate During Electroslag Remelting; R. J. Roberts, Oct. 16-18, 1974.

Affiliated with

Also associated with

Rating

Method and apparatus for controlling electrode drive speed in a 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 and apparatus for controlling electrode drive speed in a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling electrode drive speed in a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1297864