US3743007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous casting apparatus with inter-changeable pouring tubes
Assignee: SMS Concast AG
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Filing: 1970-10-21
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Granted: 1973-07-03
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Expires: 1990-10-21
Abstract
Abstract The outlet of a tundish communicates with the inlet of a continuous-casting mold. Two or more immersible pouring tubes are mounted for movement in a path in such a manner that one pouring tube communicates with the inlet and the outlet, while at least one other pouring tube is in standby position. The last mentioned pouring tube may be moved to operating position and simultaneously the pouring tube previously in operating position is displaced therefrom.
Inventors
- 👤 W Simons
- 👤 H Grothe
- 👤 K Brock
- 👤 R Haselhuhn
- 👤 P Koenig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:05
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/50; B22D41/56
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
210 words
Apparatus for pouring molten metal into the mold of a continuous casting machine, comprising a tundish having an outlet having a passage therethrough, means for controlling the flow of metal through said outlet passage, a first immersible pouring tube having a passage aligned with said outlet passage and extending from said outlet passage to a level below the surface of the molten metal in the mold to conduct metal from said tundish into said mold, a replacement immersible pouring tube, and means for simultaneously supporting and guiding said first immersible pouring tube and said replacement immersible pouring tube at least during the time that said first immersible pouring tube is to be exchanged by said replacement immersible pouring tube, said supporting and guiding means controlling the movement of said pouring tubes along a path such as said pouring tubes are moved, said first immersible pouring tube is moved out of alignment with said outlet passage and said replacement immersible pouring tube is moved into alignment therewith, said supporting and guiding means for said immersible pouring tubes including means for permitting removal and replacement of any one of said immersible pouring tubes from said supporting and guiding means while the other immersible pouring tube is in position beneath said outlet passage.
Claim 2
Dependent Claim
210 words
Apparatus for pouring molten metal into the mold of a continuous casting machine, comprising a tundish having an outlet having a passage therethrough, means for controlling the flow of metal through said outlet passage, a first immersible pouring tube having a passage aligned with said outlet passage and extending from said outlet passage to a level below the surface of the molten metal in the mold to conduct metal from said tundish into said mold, a replacement immersible pouring tube, and means for simultaneously supporting and guiding said first immersible pouring tube and said replacement immersible pouring tube at least during the time that said first immersible pouring tube is to be exchanged by said replacement immersible pouring tube, said supporting and guiding means controlling the movement of said pouring tubes along a path such as said pouring tubes are moved, said first immersible pouring tube is moved out of alignment with said outlet passage and said replacement immersible pouring tube is moved into alignment therewith, said supporting and guiding means for said immersible pouring tubes including means for permitting removal and replacement of any one of said immersible pouring tubes from said supporting and guiding means while the other immersible pouring tube is in position beneath said outlet passage.
Claim 3
Dependent Claim
24 words
Apparatus according to claim 1, further including means for carrying out relative movement between said pouring tubes and said tundish in the vertical direction.
Claim 4
Dependent Claim
19 words
Apparatus according to claim 2, wherein each pouring tube is yieldably held against said outlet passage by a spring.
Claim 5
Dependent Claim
17 words
Apparatus according to claim 1, wherein the path defined by said supporting and guiding means is circular.
Claim 6
Dependent Claim
16 words
Apparatus according to claim 1, wherein said supporting and guiding means is connected to the tundish.
Claim 7
Dependent Claim
28 words
Apparatus according to claim 1, wherein said supporting and guiding means is attached to a fixed structural framework and the tundish can be raised and lowered relative thereto.
Claim 8
Dependent Claim
51 words
Apparatus according to claim 1, wherein each pouring tube and said means for controlling the flow of metal are both held together as a unit against said outlet passage when each said pouring tube is in alignment with said outlet passage and are moved thereto or displaced therefrom as a unit.
Claim 9
Dependent Claim
13 words
Apparatus according to claim 1, including means for preheating said replacement pouring tube.
Claim 10
Dependent Claim
162 words
Apparatus for pouring molten metal into the mold of a continuous casting machine, comprising a tundish having an outlet having a passage therethrough, means for controlling the flow of metal through said outlet passage, a first immersible pouring tube having a passage aligned with said outlet passage and extending from said outlet passage to a level below the surface of the molten metal in the mold to conduct metal from said tundish into said mold, a replacement immersible pouring tube, and means for supporting said first immersible pouring tube and said replacement immersible pouring tube and guiding the movement of said pouring tubes along a path such that as said pouring tubes are moved, said first immersible pouring tube is moved out of alignment with said outlet passage and said replacement immersible pouring tube is moved into alignment therewith, said path defined by said supporting and guiding means being circular, said supporting and guiding means extending upwardly from below said outlet passage.
Claim 11
Dependent Claim
162 words
Apparatus for pouring molten metal into the mold of a continuous casting machine, comprising a tundish having an outlet having a passage therethrough, means for controlling the flow of metal through said outlet passage, a first immersible pouring tube having a passage aligned with said outlet passage and extending from said outlet passage to a level below the surface of the molten metal in the mold to conduct metal from said tundish into said mold, a replacement immersible pouring tube, and means for supporting said first immersible pouring tube and said replacement immersible pouring tube and guiding the movement of said pouring tubes along a path such that as said pouring tubes are moved, said first immersible pouring tube is moved out of alignment with said outlet passage and said replacement immersible pouring tube is moved into alignment therewith, said path defined by said supporting and guiding means being circular, said supporting and guiding means extending upwardly from below said outlet passage.
Claim 12
Dependent Claim
181 words
Apparatus for pouring molten metal into the mold of a continuous casting machine, comprising a tundish having an outlet having a passage therethrough, means for controlling the flow of metal through said outlet passage, a first immersible pouring tube having a passage aligned with said outlet passage and extending from said outlet passage to a level below the surface of the molten mEtal in the mold to conduct metal from said tundish into said mold, a replacement immersible pouring tube, and means for supporting said first immersible pouring tube and said replacement immersible pouring tube and guiding the movement of said pouring tubes along a path such that as said pouring tubes are moved, said first immersible pouring tube is moved out of alignment with said outlet passage and said replacement immersible pouring tube is moved into alignment therewith, said supporting and guiding means including a vertical shaft, a pair of arms pivotally mounted on said shaft, and a pouring tube holder mounted on each of said arms, and wherein the said path is defined by rotation of said vertical shaft.
Claim 13
Dependent Claim
181 words
Apparatus for pouring molten metal into the mold of a continuous casting machine, comprising a tundish having an outlet having a passage therethrough, means for controlling the flow of metal through said outlet passage, a first immersible pouring tube having a passage aligned with said outlet passage and extending from said outlet passage to a level below the surface of the molten mEtal in the mold to conduct metal from said tundish into said mold, a replacement immersible pouring tube, and means for supporting said first immersible pouring tube and said replacement immersible pouring tube and guiding the movement of said pouring tubes along a path such that as said pouring tubes are moved, said first immersible pouring tube is moved out of alignment with said outlet passage and said replacement immersible pouring tube is moved into alignment therewith, said supporting and guiding means including a vertical shaft, a pair of arms pivotally mounted on said shaft, and a pouring tube holder mounted on each of said arms, and wherein the said path is defined by rotation of said vertical shaft.
Claim 14
Dependent Claim
20 words
Apparatus according to claim 10, wherein the shaft is mounted on said tundish and is vertically adjustable with respect thereto.
Claim 15
Dependent Claim
34 words
Apparatus according to claim 10, wherein said pouring tube holders are rotatable on said arms and include means to arrest the rotation thereof when the pouring tube axis is swung to a horizontal position.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |