David Haveman resumes & CV records
Resumes
David Haveman
Location:
Phoenix, Arizona Area
Industry:
Internet
David L Haveman, Age 7610243 26Th St, Phoenix, AZ 85028
David Haveman Phones & Addresses
10243 26Th St, Phoenix, AZ 85028 (602) 867-1971
10243 26Th Pl, Phoenix, AZ 85028 (602) 867-1971
Carleton, MI
1130 Highland St, Chandler, AZ 85224 (480) 307-8295
Prescott, AZ
10243 N 26Th Pl, Phoenix, AZ 85028 (520) 245-4077
Work
Position:
Clerical/White Collar
Education
Degree:
High school graduate or higher
Emails
Mentions for David L Haveman
Publications & IP owners
Us Patents
Method And Apparatus For Controlling The Level Of Liquid Metal In A Continuous Casting Mold
US Patent:
4625787, Dec 2, 1986
Filed:
Jan 22, 1985
Appl. No.:
6/693197
Inventors:
David L. Haveman - Carleton MI
John C. Powell - Oakdale PA
John C. Powell - Oakdale PA
Assignee:
National Steel Corporation - Pittsburgh PA
International Classification:
B22D 1118
US Classification:
164453
Abstract:
The level of molten metal in the mold of a continuous metal caster is controlled by regulating the open area of a variable outlet nozzle in a tundish. The level of molten metal is monitored, and the extent and direction of any detected deviation is signalled to a computer which also receives a signal indicating the position of a movable valve member in the tundish outlet nozzle and a separate signal representing the rate of withdrawal of the cast metal from the mold. The computer determines the extent of movement of the valve member to correct the liquid metal level in the mold and controls actuation of a hydraulic drive system to move the valve member to reduce the position error to zero. The velocity of movement of the valve member is measured and fed back to the computer, with the velocity measurement being utilized by the computer to control the hydraulic system and more accurately position the movable valve member.
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