Invention Grant
- Patent Title: Molten metal feed system controlled with a traveling magnetic field
- Patent Title (中): 用行走磁场控制的熔融金属进料系统
-
Application No.: US318875Application Date: 1989-03-06
-
Publication No.: US4993477APublication Date: 1991-02-19
- Inventor: Walter F. Praeg
- Applicant: Walter F. Praeg
- Applicant Address: DC Washington
- Assignee: The United States of America as represented by the United States Department of Energy
- Current Assignee: The United States of America as represented by the United States Department of Energy
- Current Assignee Address: DC Washington
- Main IPC: B22D11/18
- IPC: B22D11/18
Abstract:
A continuous metal casting system in which the feed of molten metal is controlled by means of a linear induction motor capable of producing a magnetic traveling wave in a duct that connects a reservoir of molten metal to a caster. The linear induction motor produces a traveling magnetic wave in the duct in opposition to the pressure exerted by the head of molten metal in the reservoir so thatp.sub.c =p.sub.g -p.sub.mwhere p.sub.c is the desired pressure in the caster, p.sub.g is the gravitational pressure in the duct exerted by the force of the head of molten metal in the reservoir, and p.sub.m is the electromagnetic pressure exerted by the force of the magnetic field traveling wave produced by the linear induction motor. The invention also includes feedback loops to the linear induction motor to control the casting pressure in response to measured characteristics of the metal being cast.
Public/Granted literature
- US5505554A Drawer front fastening hardware Public/Granted day:1996-04-09
Information query