GB325661A - Improvements in or relating to the preparation of refractory linings or crucibles for coreless electrical induction furnaces - Google Patents
Improvements in or relating to the preparation of refractory linings or crucibles for coreless electrical induction furnacesInfo
- Publication number
- GB325661A GB325661A GB70329A GB70329A GB325661A GB 325661 A GB325661 A GB 325661A GB 70329 A GB70329 A GB 70329A GB 70329 A GB70329 A GB 70329A GB 325661 A GB325661 A GB 325661A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- furnace
- pot
- lining
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/22—Furnaces without an endless core
- H05B6/24—Crucible furnaces
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
325,661. Davis, N. R., and Associated Electrical Industries, Ltd. Jan. 8, 1929. Induction furnaces.- The top part or mouth of the lining or crucible of a coreless induction furnace is sintered by inserting a metal ring 5 of heavy cross-section in the mouth of the crucible and inducing eddy currents therein by means of the furnace coil. The silica or magnesite with or without a binder is rammed between the metal pot 3 and ring 5 and the furnace coil 1 and casing 2. A lip or spout 6 is provided in the lining which is formed from ganister at this part. The furnace is charged and the coil energized but until the pot 3 fractures by fusion it shields the ring 5 electromagnetically. As the charge melts it exerts a shielding action on the ring. During the period between the fracture of the pot and the melting of the charge considerable heat is developed in the rings 5 and the adjacent lining is sintered. When the furnace is tipped to pour the melt part of the ring is melted and a gap b, Fig. 2, is formed therein. During the next melt intense heat is developed at the part c which melts and renders the ring discontinuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB70329A GB325661A (en) | 1929-01-08 | 1929-01-08 | Improvements in or relating to the preparation of refractory linings or crucibles for coreless electrical induction furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB70329A GB325661A (en) | 1929-01-08 | 1929-01-08 | Improvements in or relating to the preparation of refractory linings or crucibles for coreless electrical induction furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB325661A true GB325661A (en) | 1930-02-27 |
Family
ID=9709063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB70329A Expired GB325661A (en) | 1929-01-08 | 1929-01-08 | Improvements in or relating to the preparation of refractory linings or crucibles for coreless electrical induction furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB325661A (en) |
-
1929
- 1929-01-08 GB GB70329A patent/GB325661A/en not_active Expired
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