CN1059366C - Electroslag molten casting device - Google Patents
Electroslag molten casting device Download PDFInfo
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- CN1059366C CN1059366C CN95119523A CN95119523A CN1059366C CN 1059366 C CN1059366 C CN 1059366C CN 95119523 A CN95119523 A CN 95119523A CN 95119523 A CN95119523 A CN 95119523A CN 1059366 C CN1059366 C CN 1059366C
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- crystallizer
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Abstract
The present invention provides an electroslag molten casting device which belongs to the field of metal electroslag remelting equipment. The device comprises a power supply, a consumable electrode and a crystallizer, wherein the crystallizer is composed of a crucible, an external crystallizer and an internal crystallizer. The crucible forms an integral double U-shaped structure with a molten metal outlet in the center and is assembled and connected with the external crystallizer; an internal U-shaped wall is lower than an external U-shaped wall in the crucible. The upper opening of the external crystallizer is relatively connected with the molten metal outlet of the crucible; the internal cavity of the external crystallizer can be a cavity of different shape or dimension. The device can make various castings with cross sections of different shapes and different dimensions by molten casting and can greatly improve the quality of molten castings.
Description
The invention belongs to the apparatus field of metal electroslag or electric arc remelting.Mainly be applicable to the various foundry goods of founding.
Traditional electroslag remelting or electroslag smelting casting all are to adopt metallic conductor (consutrode) as consumable electrode, and the heat that produces by slag resistance melts the mode of electrode with drop gradually; Also can pass through electromagnetic induction, after the heating of metal, again with the slag heating, play the effect of electroslag equally conversely.Consutrode is the crystallization of fusing of margin limit in water mold.An optimum ratio is arranged between the size of consutrode and the size of crystallizer.Usually the optimum ratio of consutrode diameter d and crystallizer diameter D is 0.5～0.8, i.e. d/D=0.5～0.8.That is to say that the diameter of the ingot that consutrode comes out through electroslag remelting is 1.25～2 times of consutrode diameter.If desire to think that the diameter of electroslag remelting ingot is equal to or less than the diameter of consutrode, it is impossible adopting existing electroslag remelting device.That is to say that existing electroslag remelting device can only be produced symmetric garden cylindricality or square ingot shape.Its scope of application all is subjected to strict restriction to the shape and size of its ingot casting.The crystallizer that is a kind of electroslag remelting device of model can only be produced a kind of ingot shape (" electroslag furnace " chapter 13,, National Defense Industry Press in 1984) of shape and size.
The object of the present invention is to provide a kind of energy to produce different ingot shapes and size and can produce metal tube and electroslag molten casting device that can improve ingot quality.
At above-mentioned purpose, electroslag molten casting device of the present invention is made up of power supply, consutrode, complementary field, liquid-level probe and crystallizer; Crystallizer is a fabricated structure, is made up of crucible, outer crystallizer and interior crystallizer; Crucible is the disjunctor dual U-shaped structure of central zone molten metal outlet, crucible joins with outer crystallizer assembling, liquid-level probe is assemblied in the sidewall of outer crystallizer, near crucible bottom, complementary field is positioned at interior crystallizer (1) both sides, the height of U-shaped wall is lower than the height of outer U-shaped wall in the crucible, the inner chamber of outer crystallizer is suitable for reading to export relative joining with the molten metal of crucible bottom, the inner chamber of outer crystallizer can be the cavity of difformity and size, the size of crucible bottom molten metal outlet is equal to or less than the size of outer crystallizer internal cavity, when the founding pipe fitting, interior crystallizer is in the crucible top, exports over against molten metal.
Now in conjunction with the accompanying drawings the present invention is elaborated.
Accompanying drawing 1 is electroslag molten casting device of the present invention---the structural representation of the electroslag molten casting device of founding metal tube.
In the accompanying drawing 1,1 be interior crystallizer, 2 for slag liquid, 3 for consutrode, 4 for crucible, 5 for outer crystallizer, 6 for cast tube spare, 7 for metal liquid, 8 for liquid level probe, 9 be complementary field.
Found out that by Fig. 1 electroslag molten casting device of the present invention is comprised of power supply, consutrode 3, complementary field 9, liquid-level probe 8 and crystallizer; Crystallizer is fabricated structure, is comprised of crucible 4, outer crystallizer 5 and interior crystallizer 1; Crucible 4 is the disjunctor dual U-shaped structure of central zone molten metal outlet, crucible 4 joins with outer crystallizer 5 assemblings, liquid-level probe 8 is assemblied in the sidewall of outer crystallizer 5, near crucible 4 bottoms, complementary field 9 is positioned at the both sides of interior crystallizer 1, the height of crucible 4 interior U-shaped walls is lower than the height of outer U-shaped wall, the shape of crucible 4 bottom metal liquid outlet is consistent with outer crystallizer 5 cavity shapes, the inner chamber of outer crystallizer 5 is suitable for reading to export relative joining with the molten metal of crucible 4 bottoms, the inner chamber of outer crystallizer 5 can be the cavity of difformity and size, the size of crucible 4 bottom metal liquid outlet is equal to or less than the size of outer crystallizer 5 inner chambers, when the founding pipe fitting, interior crystallizer 1 is assemblied in crucible 4 tops, exports over against molten metal.
The dual U-shaped structure of crucible 4 consists of the annular space of crucible bottom, and consutrode 3 is on this annular space. Annular space can store a part of metal liquid, and during founding, metal liquid is covered by interior U-shaped wall top, steadily flows into the inner chamber of outer crystallizer 5, does not produce any splashing. Be conducive to remove gas, be mingled with. This dual U-shaped structure, except metal liquid is stablized, is diffused in outside crystallizer 5 inner chambers equably, malfunctioning when controlling, the metal liquid that solidifies up " is climbed ", during to interior U-shaped wall, because the high temperature action that the large quantitative metal liquid body is kept in the annular space also can be melted, be unlikely to make and draw ingot failed. In addition, but by the liquid level in outer crystallizer 5 inner chambers of liquid-level probe 8 Accurate Determinings, be conducive to control remelt speed, guarantee that founding continuously, stably carry out. Complementary field 9 can the eddy-current heating metal liquid, and slag is had insulation, and the effect that makes it to float, can crystal grain thinning.
Compared with prior art, the present invention has following advantage:
(1), owing to shifts to annular space by the crystallizer middle part between the high-temperature region of consutrode heating, realization electroslag commentaries on classics casting.The one, make metal liquid crystallization reposefully continuously in the crystallizer outside, the one, liquid slag can fully float, and like this, can improve the quality of founding part greatly.
(2), change casting, electrode size, shape are unrestricted owing to realize electroslag, in addition can founding greater than, be less than or equal to the ingot shape in consutrode cross section.
(3), in fusion-casting process, can change electrode and not influence founding part quality, can draw ingot continuously simultaneously, boost productivity.
(4), can the founding plate, rod, pipe and asymmetric special-shaped founding part, can also the production composite plate and product such as composite roll class, realize multi-use.
Embodiment
Adopt electroslag molten casting device of the present invention to produce four batches of founding parts.Four batches of used materials of founding part, section configuration and sizes are as shown in table 1.After the founding, four batches of casting products have been carried out surface quality and longitudinal profile inspection, its result is as shown in table 2.Its inspection is undertaken by relative national standards.
The used material of table 1 embodiment founding part, section configuration and chi
| Lot number | Material | Section configuration and size |
| 1 | No. 45 steel | Pole φ 50mm |
| 2 | No. 45 steel | Pipe fitting internal diameter φ 100mm, external diameter φ 160mm |
| 2 | No. 45 steel | Pipe fitting internal diameter φ 200mm, external diameter φ 280mm |
| 3 | No. 45 steel | Square billet 200 * 260mm |
The surface quality of table 2 embodiment casting product and longitudinal profile check knot
| Lot number | Surface quality | Longitudinal profile is checked |
| 1 | Smooth flawless, no fault | It is even to be |
| 2 | Smooth flawless, no fault | It is even to be |
| 2 | Smooth flawless, no fault | It is even to be tiny columanar structure |
Claims (6)
1, a kind of electroslag molten casting device comprises power supply, consutrode and crystallizer, it is characterized in that:
＜1 〉, this device also contains complementary field (9) and liquid-level probe (8);
＜2 〉, crystallizer is made up of crucible (4), outer crystallizer (5) and interior crystallizer (1);
＜3 〉, crucible (4) is the disjunctor dual U-shaped structure of central zone molten metal outlet;
＜4 〉, crucible (4) joins with outer crystallizer (5) assembling;
＜5 〉, liquid-level probe is assemblied in the sidewall of outer crystallizer (5), near crucible (4) bottom;
＜6 〉, complementary field (9) is positioned at interior crystallizer (1) both sides.
2, device according to claim 1 is characterized in that the height of the interior U-shaped wall of crucible (4) is lower than the height of outer U-shaped wall.
3, device according to claim 1 is characterized in that the inner chamber molten metal with crucible (4) bottom suitable for reading of outer crystallizer (5) exports relative joining.
4, device according to claim 1 is characterized in that the inner chamber of outer crystallizer (5) can be the cavity of difformity and size.
5, device according to claim 1 is characterized in that the size of crucible (4) bottom metal liquid outlet is equal to or less than the size of outer crystallizer (5) inner chamber.
6, device according to claim 1, when it is characterized in that the founding pipe fitting, interior crystallizer (1) is in crucible (4) top, exports over against molten metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95119523A CN1059366C (en) | 1995-12-20 | 1995-12-20 | Electroslag molten casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95119523A CN1059366C (en) | 1995-12-20 | 1995-12-20 | Electroslag molten casting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1152486A CN1152486A (en) | 1997-06-25 |
| CN1059366C true CN1059366C (en) | 2000-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95119523A Expired - Fee Related CN1059366C (en) | 1995-12-20 | 1995-12-20 | Electroslag molten casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1059366C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1102469C (en) * | 2000-08-11 | 2003-03-05 | 钢铁研究总院 | Continuous casting equipment and method for composite roller |
| CN114643347B (en) * | 2020-12-17 | 2023-08-18 | 沈阳铸造研究所有限公司 | Method for controlling thickness of slag pool of electroslag casting variable-section casting |
| WO2024113103A1 (en) * | 2022-11-28 | 2024-06-06 | 苏州大学 | Smelting apparatus for clean and homogenized extra-large steel ingot, and use method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071966A (en) * | 1991-10-21 | 1993-05-12 | 通用电气公司 | The direct processing of electroslag refining metal |
| CN1104944A (en) * | 1993-12-24 | 1995-07-12 | 机械工业部沈阳铸造研究所 | Electric slag smelting and founding with fixed random self consumption electrode |
| CN2213593Y (en) * | 1994-12-28 | 1995-11-29 | 机械工业部沈阳铸造研究所 | Founding device of thin-wall variable camber blade slab electroslag |
-
1995
- 1995-12-20 CN CN95119523A patent/CN1059366C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071966A (en) * | 1991-10-21 | 1993-05-12 | 通用电气公司 | The direct processing of electroslag refining metal |
| CN1104944A (en) * | 1993-12-24 | 1995-07-12 | 机械工业部沈阳铸造研究所 | Electric slag smelting and founding with fixed random self consumption electrode |
| CN2213593Y (en) * | 1994-12-28 | 1995-11-29 | 机械工业部沈阳铸造研究所 | Founding device of thin-wall variable camber blade slab electroslag |
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| Publication number | Publication date |
|---|---|
| CN1152486A (en) | 1997-06-25 |
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