US3749149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and an electro-beam furnace for ingot production
Assignee: Individual
•
Filing: 1971-05-03
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Granted: 1973-07-31
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Expires: 1991-05-03
Abstract
Abstract The method of the present invention provides for melting a metal charge in an electron-beam furnace over a tundish and for solidifying molten metal in a mould the capacity of which is increased in a horizontal direction as it is filled with hot metal. The capacity of the mould is increased by moving its trough-shaped casing in a horizontal plane relative to its internal partition. In order to produce multi-layer ingots, the internal partition is lifted for a distance equal to the thickness of the previous solidified layer of the ingot. Electron-beam surface for realizing this method includes a vacuum chamber, a charger, and electron guns.
Inventors
- 👤 B Paton
- 👤 I Pryanishnikov
- 👤 R Misjura
- 👤 P Kucherenko
- 👤 A Tikhonovsky
- 👤 J Kurapoy
- 👤 V Topilin
- 👤 I Perepelitsa
- 👤 B Movchan
- 👤 V Zhuchin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/22; C22B9/228
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
A method for the production of slab-like ingots, comprising the steps of melting metal in an electron-beam furnace over a tundish; transferring the molten metal from said tundish into a mold made in the form of a trough-like tray whose length is divided by a vertical partition extending transverse said tray; moving said mold horizontally lengthwise relative to said partition to increase the volume of the space to be filled with liquid metal; and pouring molten metal into said mold to form the slab-like ingot.
Claim 2
Independent Claim
85 words
A method for the production of slab-like ingots, comprising the steps of melting metal in an electron-beam furnace over a tundish; transferring the molten metal from said tundish into a mold made in the form of a trough-like tray whose length is divided by a vertical partition extending transverse said tray; moving said mold horizontally lengthwise relative to said partition to increase the volume of the space to be filled with liquid metal; and pouring molten metal into said mold to form the slab-like ingot.
Claim 3
Dependent Claim
49 words
The method as claimed in claim 1, comprising the further steps of vertically moving said partition to a height equal to the thickness of a preceding slab-like ingot; returning said mold to its initial position; and again pouring molten metal therein to form another layer of the slab-like ingot.
Claim 4
Dependent Claim
106 words
An electron-beam furnace for the production of slab-like ingots comprising a vacuum chamber; charging means to supply said chamber with metal to be remelted; electron-beam guns to melt said metal within said electron-beam furnace; a water-cooled tundish for molten metal located within said vacuum chamber; a mold in the form of a trough-like tray adapted to move lengthwise in a horizontal direction; a vertical partition within said chamber adapted to enter the mold space of said mold and transversely divide it; and means for moving said mold lengthwise in a horizontal plane relative to said partition so as to increase the volume of the molding space.
Claim 5
Dependent Claim
106 words
An electron-beam furnace for the production of slab-like ingots comprising a vacuum chamber; charging means to supply said chamber with metal to be remelted; electron-beam guns to melt said metal within said electron-beam furnace; a water-cooled tundish for molten metal located within said vacuum chamber; a mold in the form of a trough-like tray adapted to move lengthwise in a horizontal direction; a vertical partition within said chamber adapted to enter the mold space of said mold and transversely divide it; and means for moving said mold lengthwise in a horizontal plane relative to said partition so as to increase the volume of the molding space.
Claim 6
Dependent Claim
29 words
The electron-beam furnace as claimed in claim 3, wherein said partition is adapted to move vertically relative to said mold, there being power means to accomplish this vertical movement.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |