CN218109294U - Hollow steel ingot pouring mold - Google Patents
Hollow steel ingot pouring mold Download PDFInfo
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- CN218109294U CN218109294U CN202222046469.1U CN202222046469U CN218109294U CN 218109294 U CN218109294 U CN 218109294U CN 202222046469 U CN202222046469 U CN 202222046469U CN 218109294 U CN218109294 U CN 218109294U
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- steel ingot
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- cylindrical steel
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Abstract
The utility model discloses a hollow steel ingot casting mould relates to hollow steel ingot production and uses mould design technical field. The steel ingot mould comprises a cylindrical steel ingot mould, wherein a lantern ring is arranged in the center of the bottom of the inner side of the cylindrical steel ingot mould, molten steel injection holes are symmetrically formed in the bottom of the inner side of the cylindrical steel ingot mould, the lantern ring is of an outwards-protruding annular structure at the bottom of the cylindrical steel ingot mould, a center rod is inserted into the lantern ring and extends towards the opening at the upper end of the cylindrical steel ingot mould, a fixing frame is arranged on the outer side of the cylindrical steel ingot mould, a pressing plate is connected to one side of the fixing frame through a bolt, and the lower end of the pressing plate and the upper end of the center rod are extruded and fixed through an adjusting bolt. The utility model overcomes prior art's is not enough, the length of the hollow steel ingot processing of effective convenient control, the subsequent drawing of patterns of being convenient for simultaneously to and the control of casting process, prevent that hollow steel ingot from producing the crackle, promote the yield.
Description
Technical Field
The utility model relates to a mold design technical field is used in hollow steel ingot production, especially relates to a hollow steel ingot casting mould.
Background
The hollow steel ingot is mainly used for producing large-caliber seamless pipes, burrs of inner holes of the produced hollow steel ingot are removed, cap openings are cut off, and the hollow steel ingot can be directly hot-pierced into seamless steel pipes after being heated.
However, the existing hollow steel ingot is difficult to demould in the production process of adopting a mould, and the steel ingot is easy to crack in the processing process, which brings great trouble to the actual processing.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a hollow steel ingot pouring mould, the length of the hollow steel ingot processing of effective convenient control, the subsequent drawing of patterns of being convenient for simultaneously, the control of the casting process of being convenient for prevents that hollow steel ingot from producing the crackle, promotes the yield.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the hollow steel ingot casting mold comprises a cylindrical steel ingot mold, wherein a lantern ring is arranged in the center of the bottom of the inner side of the cylindrical steel ingot mold, molten steel injection holes are symmetrically formed in the bottom of the inner side of the cylindrical steel ingot mold, the lantern ring is of an outwards-protruding annular structure at the bottom of the cylindrical steel ingot mold, a center rod is inserted into the lantern ring, the center rod extends towards an opening at the upper end of the cylindrical steel ingot mold, a fixing frame is arranged on the outer side of the cylindrical steel ingot mold, a pressing plate is connected to one side of the fixing frame through a bolt, and the lower end of the pressing plate and the upper end of the center rod are extruded and fixed through an adjusting bolt.
Preferably, the center rod comprises a plurality of sleeves, the sleeves are of a hollow annular structure, the sleeves are mullite, the outer layers of the sleeves are coated with a layer of high-temperature-resistant coating, the outer diameter of each sleeve is smaller than the inner diameter of each sleeve ring, one end of each sleeve is provided with a convex ring, the other end of each sleeve is provided with a groove matched with the convex ring, and the sleeves are sequentially matched with the grooves through the convex rings and stacked to the required height.
Preferably, a filling layer is arranged at the hollow part in the sleeve, and the filling layer is quartz sand with the granularity of 1-3 mm.
Preferably, a cap opening with adjustable height is hung at the opening at the upper end of the cylindrical ingot mould.
Preferably, the molten steel injection hole has a circular truncated cone structure with a small top and a large bottom.
Preferably, the diameter of the upper opening of the molten steel injection hole is 122 +/-2 mm, and the diameter of the lower opening is 145 +/-2 mm.
Preferably, the lantern ring is in a shape of a ring-shaped bevel-opening bulge, the longitudinal section of the lantern ring is in a right-angled triangle shape, and the inner diameter of the lantern ring is 20% -30% of the inner diameter of the bottom of the cylindrical ingot mold.
Preferably, the cylindrical ingot mold has a shape with a smaller lower part and a larger upper part as a whole, and the ratio of the inner diameter of the upper opening to the inner diameter of the lower opening is 1.01 to 1.015.
Compared with the prior art, the utility model provides a hollow steel ingot pouring mould possesses following beneficial effect:
1. the utility model can effectively control the height of the whole central rod through the arrangement of the pressing plate and the central rod made of a plurality of sleeves, is convenient for casting steel ingots with different heights, controls the stability of the position of the central rod through the pressing plate, ensures the stability of the casting process, and is convenient for subsequent demoulding treatment through the lantern ring with the bevel opening;
2. the utility model discloses a setting up of mould guarantees the cooling homogeneity of steel ingot to guarantee the stability of steel ingot performance.
Drawings
Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;
FIG. 2 is a schematic view of a front cross-sectional structure of a cylindrical ingot mold according to the present invention;
FIG. 3 is a schematic top view of the cylindrical ingot mold according to the present invention;
fig. 4 is a schematic view of the structure of the sleeve of the present invention.
In the figure: 1. a cylindrical ingot mold; 2. a collar; 3. injecting molten steel into a hole; 4. a center bar; 401. a sleeve; 402. a convex ring; 403. a groove; 5. a filling layer; 6. and (7) pressing a plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-4, a hollow steel ingot casting mold comprises a cylindrical steel ingot mold 1, wherein the inner diameter of the cylindrical steel ingot mold 1 is generally more than 500mm, two sides of the bottom of the cylindrical steel ingot mold 1 are provided with two molten steel injection holes 3, the center of the bottom of the cylindrical steel ingot mold 1 is provided with a beveled lantern ring 2 for positioning a central rod 4, the height of the lantern ring 2 is generally 30-50mm, the longitudinal section of the lantern ring 2 is a right triangle, the inner diameter of the lantern ring 2 is 20% -30% of the inner diameter of the cylindrical steel ingot mold 1, the bell-mouth snapping line is not arranged in the cylindrical steel ingot mold 1, the lantern ring 2 can replace the snapping line in the steel ingot cooling process, the volume of a steel ingot can be reduced when the steel ingot casting is finished and the steel ingot is cooled in the mold, the beveled lantern ring 2 can prevent the steel ingot from shrinking downwards, the bottom of the steel ingot can automatically separate from the bottom of the steel ingot mold, and the subsequent steel ingot mold stripping is convenient; the outer layer of the central rod 4 is composed of a plurality of mullite sleeves 401, the surfaces of the sleeves 401 are coated with high-temperature-resistant coatings, two ends of each sleeve 401 are respectively provided with a convex ring 402 and a groove 403 which are mutually matched, the sleeves 401 are mutually matched and stacked to corresponding heights, the upper end of the uppermost sleeve 401 is provided with a pressing plate 6 for preventing the sleeves from loosening, the pressing plate 6 is fixed by bolts to ensure the stability of the central rod 4, and the pressing plate 6 is connected with a fixing frame outside the cylindrical ingot mould 1.
Example 2:
referring to fig. 1 to 4, this embodiment is substantially the same as embodiment 1, and preferably, the inner hole of the sleeve 401 is filled with 1 to 3mm dry quartz sand as a filling layer 5, wherein the quartz sand is baked at a temperature of 120 ℃ or higher to a dry state and filled into the core of the center rod 4, the cast steel ingot shrinks toward the center during cooling, the quartz sand is filled so that the center rod 4 has a certain shrinkage space, after the quartz sand is filled, the fixing bolt is tightened to apply a downward pressure to the center rod 4, thereby preventing the center rod 4 from tilting, and preventing the center rod 4 from floating upward during casting.
Example 3:
referring to fig. 1 to 4, this embodiment is substantially the same as embodiment 2, and preferably, the cylindrical ingot mold 1 has a shape with a smaller bottom and a larger top, and the ratio of the inner diameter of the upper opening to the inner diameter of the lower opening is in the range of 1.01 to 1.015, which facilitates subsequent mold release; meanwhile, transverse cracks are prevented from occurring in the die after the steel ingot casting is finished, the upper opening of the cylindrical steel ingot die 1 is not provided with a cap opening snapping line, the cap opening is fixed on the upper opening of the steel ingot die in a suspension mode, and the steel ingot casting with different weights can be realized only by adjusting the suspension height of the cap opening;
and two axisymmetrical molten steel injection holes 3 are arranged at the bottom of the cylindrical ingot mould 1, the diameter of the upper opening of each injection hole is 122 +/-2 mm, the diameter of the lower opening of each injection hole is 145 +/-2 mm, molten steel can be simultaneously injected from the two injection holes, and the molten steel can be simultaneously injected from two holes, so that the internal structure of the cast ingot is more uniform and compact.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. A hollow steel ingot casting mould comprises a cylindrical steel ingot mould (1), and is characterized in that: the steel ingot mould is characterized in that a lantern ring (2) is arranged in the center of the bottom of the inner side of the cylindrical steel ingot mould (1), molten steel injection holes (3) are symmetrically formed in the bottom of the inner side of the cylindrical steel ingot mould (1) in two sides, the lantern ring (2) is of a convex annular structure at the bottom of the cylindrical steel ingot mould (1), a central rod (4) is inserted into the lantern ring (2), the central rod (4) extends towards the opening at the upper end of the cylindrical steel ingot mould (1), a fixing frame is arranged on the outer side of the cylindrical steel ingot mould (1), a pressing plate (6) is connected to one side of the fixing frame through bolts, and the lower end of the pressing plate (6) and the upper end of the central rod (4) are fixed in an extruding mode through adjusting bolts.
2. A hollow steel ingot casting mold according to claim 1, characterized in that the central rod (4) is composed of a plurality of sleeves (401), the sleeves (401) are of a hollow annular structure, the sleeves (401) are made of mullite, the outer layer of each sleeve is coated with a high-temperature-resistant coating, the outer diameter of each sleeve (401) is smaller than the inner diameter of the corresponding sleeve ring (2), one end of each sleeve (401) is provided with a convex ring (402), the other end of each sleeve is provided with a groove (403) matched with the convex ring (402), and the plurality of sleeves (401) are sequentially overlapped, overlapped and piled up to a required height through the convex rings (402) and the grooves (403) in a mutually matched mode.
3. A hollow ingot casting mold according to claim 2, wherein the hollow part inside the sleeve (401) is provided with a filling layer (5), and the filling layer (5) is quartz sand with a granularity of 1-3 mm.
4. A hollow ingot casting mold as claimed in claim 1, characterized in that a height-adjustable cap is suspended at the upper end opening of the cylindrical ingot mold (1).
5. A hollow ingot casting mold according to claim 1, wherein the molten steel injection hole (3) has a circular truncated cone structure with a small top and a large bottom.
6. A hollow ingot casting mold according to claim 5, wherein the molten steel injection hole (3) has an upper mouth diameter of 122 ± 2mm and a lower mouth diameter of 145 ± 2mm.
7. A hollow ingot casting mold as claimed in claim 1, wherein the collar (2) is in the shape of an annular bevel protrusion, and the longitudinal section of the collar (2) is a right triangle, and the inner diameter of the collar (2) is 20-30% of the inner diameter of the bottom of the cylindrical ingot mold (1).
8. A hollow ingot casting mold according to claim 1, wherein the columnar ingot mold (1) has a shape with a small lower part and a large upper part as a whole, and the ratio of the inner diameter of the upper port to the inner diameter of the lower port is 1.01 to 1.015.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222046469.1U CN218109294U (en) | 2022-08-04 | 2022-08-04 | Hollow steel ingot pouring mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222046469.1U CN218109294U (en) | 2022-08-04 | 2022-08-04 | Hollow steel ingot pouring mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218109294U true CN218109294U (en) | 2022-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222046469.1U Active CN218109294U (en) | 2022-08-04 | 2022-08-04 | Hollow steel ingot pouring mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218109294U (en) |
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2022
- 2022-08-04 CN CN202222046469.1U patent/CN218109294U/en active Active
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