Title:
【発明の名称】誘導炉
Document Type and Number:
Japanese Patent JP3017166
Kind Code:
B2
Abstract:
An induction furnace apparatus and method for reducing the magnetic field produced by the operation of the furnace. The induction furnace (10) includes a refractory vessel (12), an induction coil (14) and an outer shell (16) having a layer of metallic and magnetically permeable material (20). The metallic and magnetically permeable material comprising a plurality of elements (22) having a shape and size that is chosen to maximize the packing density of elements throughout the layer. The outer shell further including a top (17), base (15) and a side wall (11) arranged about the refractory vessel such that the metallic and magnetically permeable material is formed between the refractory vessel and the outer shell. The invention provides a method for casting metallic and magnetically permeable material with or without a non-conductive matrix. The castings can be formed into inserts or incorporated into the top, base and side wall of the outer shell. The invention includes inserts (18) comprising metallic and magnetically permeable material located in a space formed between the refractory vessel and the outer shell.
Inventors:
Vitaly A. Paysahovic
Benau Jay Box
John H Mortimer
Benau Jay Box
John H Mortimer
Application Number:
JP12968798A
Publication Date:
March 06, 2000
Filing Date:
April 24, 1998
Export Citation:
Assignee:
INDUCTOTHERM CORPORATION
International Classes:
F27B3/08; F27D11/06; H05B6/24; H05B6/26; H05B6/36; (IPC1-7): F27D11/06; F27B3/08; H05B6/26
Domestic Patent References:
| JP8189775A | ||||
| JP6029200Y2 | ||||
| JP644074Y2 |
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)