US3875991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for conveying and batching liquid metal supplied from a receptacle into a mould for continuous casting of metal ingots
Assignee: KORSHUNOV EVGENY
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Filing: 1974-01-07
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Granted: 1975-04-08
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Expires: 1994-01-07
Abstract
Abstract An arrangement for conveying and batching liquid metal supplied from a receptacle into a chilled mould comprises an inlet and an outlet boxes for liquid metal and an intermediate section of the arrangement located therebetween. The inlet box is provided with a drive for axially moving this box, and the intermediate section has a liquid metal duct provided with induction pumps. The walls of the liquid metal duct, which are adjacent to the induction pumps located outside these walls, are made inwardly convex so as to project into the inerior of the passage in such a manner that the passage is of restricted cross section in the intermediate zone thereof. In addition, there is provided at least one drive for developing a force in said walls to overcome the tensile stresses therein appearing under the action of the liquid metal pressure. This liquid metal duct is durable, and the arrangement can operate under pressure changes from 0 to 10 atm.
Inventors
- 👤 Evgeny Alexeevich Korshunov
- 👤 Konstantin Alexeevich Malikov
- 👤 Lev Mikhailovich Axelrod
- 👤 Mikhail Iosipovich Arshansky
- 👤 Georgy Fedorovich Konovalov
- 👤 Petr Genrikhovich Shmidt
- 👤 Jury Sergeevich Prudnikov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:53
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/10; B22D11/14; B22D11/145
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
163 words
An arrangement for conveying and batching liquid metal from a receptacle into a mould for continuous or semicontinuous casting of metal ingots comprising: an axially movable inlet box having a passage for reception of the liquid metal from said receptacle; an intermediate section disposed downstream said inlet box in the production flow direction and including a liquid metal duct having two inwardly convex opposite walls projecting into the interior of a passage of the liquid metal duct so as to restrict the cross section of the passage in the intermediate zone thereof; induction pumps located outside each of said convex walls of said liquid metal duct and adjacent thereto; an outlet box in communication with said mould located downstream said intermediate section in the direction of the production flow; drive means providing the axial movement of said inlet box and the application of a force so as to ensure the sealing of joints between said boxes and said intermediate section of the arrangement.
Claim 2
Dependent Claim
163 words
An arrangement for conveying and batching liquid metal from a receptacle into a mould for continuous or semicontinuous casting of metal ingots comprising: an axially movable inlet box having a passage for reception of the liquid metal from said receptacle; an intermediate section disposed downstream said inlet box in the production flow direction and including a liquid metal duct having two inwardly convex opposite walls projecting into the interior of a passage of the liquid metal duct so as to restrict the cross section of the passage in the intermediate zone thereof; induction pumps located outside each of said convex walls of said liquid metal duct and adjacent thereto; an outlet box in communication with said mould located downstream said intermediate section in the direction of the production flow; drive means providing the axial movement of said inlet box and the application of a force so as to ensure the sealing of joints between said boxes and said intermediate section of the arrangement.
Claim 3
Dependent Claim
73 words
An arrangement as claimed in claim 1, wherein said liquid metal duct includes at least one drive means adapted to develop a force to compress in the transverse direction the convex walls of the liquid metal duct so as to prevent them from being tensioned under the action of the liquid metal pressure, and a pressure exerting plate, said drive means acting upon said walls of the liquid metal duct through said plate.
Claim 4
Dependent Claim
68 words
An arrangement as claimed in claim 1, wherein at the input of the passage of said inlet box and at the output of the passage of said outlet box there are provided slidably movable members, each having an integral portion for closing one of said passages and a portion with an opening of a size about equal to that of the passage to be closed by this member.
Claim 5
Dependent Claim
68 words
An arrangement as claimed in claim 3, wherein said members in said inlet and outlet boxes are made of a highly refractory electrically- and heat-conductive material, and a bushing is mounted in said opening of each member, said bushing being made of an electrically non-conductive material and having a bore of a size which is substantially equal to the size of the passage with which the bushing cooperates.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |