CN216758086U - Hollow thermal-release heat-insulating plate for die casting extrusion steel ingot riser - Google Patents
Hollow thermal-release heat-insulating plate for die casting extrusion steel ingot riser Download PDFInfo
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- CN216758086U CN216758086U CN202122719598.8U CN202122719598U CN216758086U CN 216758086 U CN216758086 U CN 216758086U CN 202122719598 U CN202122719598 U CN 202122719598U CN 216758086 U CN216758086 U CN 216758086U
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Abstract
The utility model discloses a hollow thermal release heat insulation plate for a die casting extrusion steel ingot riser, which comprises the following components: the hanging plate and the inserting plate are of a closed hollow structure, and the first strip-shaped bosses and the second strip-shaped bosses are arranged in a radial direction. The utility model is beneficial to demoulding of steel ingots, improves the pouring quality of extruded steel ingots, and improves the utilization rate of casting moulds and risers.
Description
Technical Field
The utility model belongs to the technical field of heat preservation of a die casting extruded steel ingot riser, and particularly relates to a hollow heat-release heat-insulating plate for the die casting extruded steel ingot riser.
Background
The molten steel is poured in a die casting mode, and the steel ingot shrinks in the axial direction and the radial direction in the steel ingot solidification process. Because the later solidification stage of the molten steel is blocked, metallurgical defects such as central shrinkage cavity, looseness and the like are easily formed. The heat preservation of the riser is improved, and the solidification of the molten steel of the riser is delayed, so that the riser can supplement the molten steel to the ingot body. At present, smelting enterprises mostly adopt light heat-insulating plates to solve the problem. In recent years, with the support of China to national enterprises, a large number of seamless steel pipes required by the nuclear power and power station industries are changed from import to purchase at home, and the processing modes of extrusion molding of seamless steel pipe blanks are increasing day by day. Before extrusion processing, more strict requirements are put on a riser of a die-cast steel ingot, and the surface of the steel ingot is required to be free of other non-metallic substances before the steel ingot is made into a blank. Although the problems of central shrinkage and looseness can be relieved by adopting a common light heat insulation plate, the problems of plate adhesion and poor heat insulation of a pouring riser can not meet the requirements of an extrusion process on an extrusion blank. Therefore, it is urgently needed to solve the problem that the heat insulation plate can be separated from the metal of a riser part when a steel ingot is hot-fed, and the heat insulation plate has good heat insulation performance.
The disadvantages of the conventional lightweight insulation panel are as follows:
1) and the conventional light heat-insulating plate has low refractoriness, and partial materials of the contact surface are softened after the conventional light heat-insulating plate is contacted with molten steel, so that the heat-insulating plate is adhered to a metal riser and cannot be removed. After the lightweight heat-insulating plate is used for casting the steel ingot feeder head, the feeder head is adhered and fastened with the heat-insulating plate when the steel ingot is fed in a hot mode, and the feeder head cannot be separated completely.
2) And the steel ingot riser heat insulation plate material cannot be cleaned in the extrusion process, so that part of the heat insulation plate material at the opening of the steel pipe blank after extrusion blank making is mixed with the metal material, and the part needs to be removed through machining.
3) The heat preservation of the steel ingot riser cannot achieve an ideal effect, and the phenomena of shrinkage and loose center of the ingot body still have certain probability.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hollow thermal release heat insulation plate for a die casting extruded steel ingot riser, which is beneficial to demoulding of a steel ingot, improves the pouring quality of the extruded steel ingot and improves the utilization rate of a casting mould and the riser.
The technical scheme is as follows:
a hollow thermal release heat insulation plate for a die casting extrusion steel ingot riser comprises: the hanging plate and the inserting plate are of a closed hollow structure, and the first strip-shaped bosses and the second strip-shaped bosses are arranged in a radial direction.
Furthermore, the upper parts of the hanging plate and the inserting plate are provided with heat insulation cover plates.
Furthermore, the hanging plates and the inserting plates are sequentially arranged and combined to form a cylinder shape, the middle part of the hanging plates and the inserting plates is a cone frustum-shaped through hole, the inner diameter of the upper part of the cone frustum-shaped through hole is smaller than that of the lower part of the cone frustum-shaped through hole, and the heat insulation cover plate is cylindrical.
Furthermore, the longitudinal sections of the hanging plate and the inserting plate are trapezoidal, and the length of the top side of the trapezoid is greater than that of the bottom side of the trapezoid.
Further, the outer wall of the first strip-shaped boss is overlapped with the outer wall of the hanging plate, and the top surface of the first strip-shaped boss is overlapped with the top surface of the hanging plate; the width of the first strip-shaped boss is smaller than the wall thickness of the hanging plate, and the height of the first strip-shaped boss is smaller than the height of the hanging plate; the inner wall of the second strip-shaped boss is superposed with the inner wall of the plug board, and the top surface of the second strip-shaped boss is superposed with the top surface of the plug board; the width of the second strip-shaped boss is smaller than the wall thickness of the inserting plate, and the height of the second strip-shaped boss is smaller than the height of the inserting plate.
Furthermore, the thickness of the first strip-shaped boss is the same as that of the second strip-shaped boss.
Furthermore, a plurality of hanging plate arc-shaped surfaces are arranged on the outer wall of each hanging plate, and the hanging plate ridge is formed at the crossed position of the two hanging plate arc-shaped surfaces; the outer wall of the inserting plate is provided with a plurality of inserting plate arc-shaped surfaces, and the two inserting plate arc-shaped surfaces form inserting plate ridge at the crossed position.
Furthermore, the inner wall of the hanging plate is divided into an upper arc surface and a lower arc surface with different inclination angles, and the inner wall of the inserting plate is divided into an upper arc surface and a lower arc surface with different inclination angles.
Further, the inside picture peg inner chamber that is provided with of picture peg, the inside link plate inner chamber that is provided with of link plate, the inside apron inner chamber that is provided with of adiabatic apron.
Furthermore, the plate seam between the hanging plate and the inserting plate is bent.
Compared with the prior art, the utility model has the following advantages:
the utility model is used for the casting mould riser, plays a role in preserving heat of the riser when the extruded steel ingot is cast by the die, overcomes the defects of easy adhesion, shrinkage cavity, serious looseness and the like at the riser in the prior art, improves the casting quality of the extruded steel ingot, and improves the utilization rate of the casting mould and the riser.
Drawings
FIG. 1 is a schematic structural view of a hanging plate according to the present invention;
FIG. 2 is a schematic structural view of the interposer of the present invention;
FIG. 3 is a schematic longitudinal sectional view of the insert plate according to the present invention;
FIG. 4 is a schematic view of the construction of the insulating cover sheet of the present invention;
fig. 5 is a schematic longitudinal sectional view of the heat insulating cover plate of the present invention.
Detailed Description
The following description sufficiently illustrates specific embodiments of the utility model to enable those skilled in the art to practice and reproduce it.
As shown in fig. 1, it is a schematic structural view of a hanging plate 1 in the utility model; fig. 2 is a schematic structural view of the interposer 2 according to the present invention.
The hollow thermal release insulation board for the die casting extruded steel ingot riser has a cylindrical integral appearance, a frustum cone-shaped through hole is arranged in the middle of the hollow thermal release insulation board, the inner diameter of the upper part of the frustum cone-shaped through hole is smaller than that of the lower part of the frustum cone-shaped through hole, the longitudinal section of the hollow thermal release insulation board is trapezoidal, and the length of the top side of the trapezoidal shape is larger than that of the bottom side of the trapezoidal shape.
The hollow thermal-release heat-insulating plate for the riser of the die casting extruded steel ingot structurally comprises: the hanging plate 1 and the inserting plate 2 are sequentially arranged and combined into a cylindrical structure, and an inner hole of the cylindrical structure is in a cone frustum shape.
Two side walls of the hanging plate 1 are respectively provided with a first strip-shaped boss 11, the outer wall of the first strip-shaped boss 11 is superposed with the outer wall of the hanging plate 1, and the top surface of the first strip-shaped boss 11 is superposed with the top surface of the hanging plate 1; the width of the first strip-shaped boss 11 is smaller than the wall thickness of the hanging plate 1, and the height of the first strip-shaped boss 11 is smaller than that of the hanging plate 1; the outer wall of the hanging plate 1 is provided with a plurality of hanging plate arc-shaped surfaces 12, and the two hanging plate arc-shaped surfaces 12 form hanging plate ridge 13 at the crossed position; when the hanging plate 1 is installed on the inner wall of the riser, refractory mortar is filled in the arc-shaped surface 12 of the hanging plate, and the ridge 13 of the hanging plate abuts against the inner wall of the riser to play a supporting role. The inner wall of the hanging plate 1 is divided into an upper arc surface and a lower arc surface with different inclination angles.
Two side walls of the plug board 2 are respectively provided with a second strip-shaped boss 21, the inner wall of the second strip-shaped boss 21 is superposed with the inner wall of the plug board 2, and the top surface of the second strip-shaped boss 21 is superposed with the top surface of the plug board 2; the width of the second strip-shaped boss 21 is smaller than the wall thickness of the inserting plate 2, and the height of the second strip-shaped boss 21 is smaller than the height of the inserting plate 2; the outer wall of the inserting plate 2 is provided with a plurality of inserting plate arc-shaped surfaces 22, and inserting plate ridge ridges 23 are formed at the crossed positions of the two inserting plate arc-shaped surfaces 22; when the inserting plate 2 is arranged on the inner wall of the riser, the refractory pug is filled in the arc-shaped surface 22 of the inserting plate, and the edge 23 of the inserting plate supports against the inner wall of the riser. The inner wall of the inserting plate 2 is divided into an upper arc surface and a lower arc surface with different inclination angles.
As shown in fig. 3, it is a schematic longitudinal sectional view of the insert plate 2 of the present invention.
The hanging plate 1 and the inserting plate 2 are of closed hollow structures. The inserting plate 2 is provided with an inserting plate inner cavity 24, and similarly, the hanging plate 1 is also provided with a hanging plate inner cavity. The hollow structure of the hanging plate 1 and the inserting plate 2 can reduce the heat conductivity coefficient and improve the heat insulation effect of the riser.
FIG. 4 is a schematic view showing the structure of the heat insulating cover plate 3 according to the present invention; fig. 5 is a schematic longitudinal sectional view of the heat insulating cover plate 3 according to the present invention.
In order to further enhance the heat preservation effect of the riser, the upper parts of the hanging plate 1 and the inserting plate 2 are provided with heat insulation cover plates 3, and the heat insulation cover plates 3 are cylindrical and 75mm in thickness. The outer diameter of the heat-insulating cover plate 3 is the same as the outer diameter of the top of the hollow heat-release heat-insulating plate for the die casting extrusion steel ingot riser. The heat-insulating cover plate 3 is a closed hollow structure, and a plurality of (preferably 2) cover plate inner cavities 31 are arranged inside the heat-insulating cover plate.
The inner side walls of the hanging plate 1, the inserting plate 2 and the heat insulation cover plate 3 are working layers, the outer wall is a non-working layer, the working layers are made of magnesium composite materials, and the non-working layer is made of heat insulation materials with low heat conductivity coefficients.
The refractoriness of the working layer of the hanging plate 1 and the inserting plate 2 is more than or equal to 1700 ℃, the refractoriness of the non-working layer is more than or equal to 1200 ℃, and the heat conductivity coefficient of the integral heat insulation plate is less than or equal to 0.17 w/k.m. The refractoriness of the heat insulation cover plate 3 is more than or equal to 1200 ℃, and the heat conductivity coefficient is less than or equal to 0.15 w/k.m.
The hanging plate 1 and the inserting plate 2 are adhered in the riser, refractory pug is smeared on the arc-shaped face 12 of the hanging plate 1 and the arc-shaped face 22 of the inserting plate 2, the outer wall of the hanging plate 1 is firstly attached to the inner wall of the riser, then the outer wall of the inserting plate 2 is attached to the inner wall of the riser, the second strip-shaped boss 21 is pressed on the first strip-shaped boss 11, the hanging plate 1 and the inserting plate 2 are sequentially attached according to the sequence, the hollow hot-stripping heat insulation plate for extrusion steel ingot riser of die casting is combined, the first strip-shaped boss 11 and the second strip-shaped boss 21 are radially arranged to form mutual extrusion, the plate seam structure is bent (Z shape), and steel drilling of the plate seam due to the tension of molten steel is avoided. When molten steel is cast in the mould, a heat-insulating layer is formed on the inner wall of a riser of the mould, which is beneficial to casting and demoulding; in order to further preserve heat, a heat insulation cover plate 3 is arranged on the tops of the hanging plate 1 and the inserting plate 2.
The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. The utility model provides a die casting extrusion steel ingot rising head is with hollow thermal-release heat-insulating board which characterized in that includes: the hanging plate and the inserting plate are of a closed hollow structure, and the first strip-shaped bosses and the second strip-shaped bosses are arranged in a radial direction.
2. The hollow thermal insulation release plate for the riser of a die cast extruded ingot according to claim 1, wherein the thermal insulation cover plate is provided on the upper portions of the suspending plate and the insert plate.
3. The hollow heat-release heat-insulating plate for the riser of a die-cast extruded ingot according to claim 2, wherein the plurality of hanging plates and insert plates are sequentially arranged and combined to form a cylindrical shape, the middle part of the hollow heat-insulating plate is a truncated cone-shaped through hole, the inner diameter of the upper part of the truncated cone-shaped through hole is smaller than that of the lower part of the hollow heat-insulating plate, and the heat-insulating cover plate is cylindrical.
4. The hollow heat-release insulation plate for the riser of a die cast extruded ingot according to claim 1, wherein the longitudinal sections of the hanging plate and the insert plate are trapezoidal, and the length of the top side of the trapezoid is greater than that of the bottom side.
5. The hollow heat-release insulation plate for the riser of the die cast extruded ingot according to claim 1, wherein the outer wall of the first strip-shaped boss coincides with the outer wall of the hanging plate, and the top surface of the first strip-shaped boss coincides with the top surface of the hanging plate; the width of the first strip-shaped boss is smaller than the wall thickness of the hanging plate, and the height of the first strip-shaped boss is smaller than the height of the hanging plate; the inner wall of the second strip-shaped boss is superposed with the inner wall of the plug board, and the top surface of the second strip-shaped boss is superposed with the top surface of the plug board; the width of the second strip-shaped boss is smaller than the wall thickness of the inserting plate, and the height of the second strip-shaped boss is smaller than the height of the inserting plate.
6. The hollow heat-release insulation plate for the riser of a die cast extruded ingot according to claim 1, wherein the first strip-shaped boss and the second strip-shaped boss have the same thickness.
7. The hollow heat-release heat-insulating plate for the die-cast extruded steel ingot riser according to claim 1, wherein the outer wall of the hanging plate is provided with a plurality of hanging plate arc-shaped surfaces, and the two hanging plate arc-shaped surfaces form a hanging plate ridge at the intersecting position; the outer wall of the inserting plate is provided with a plurality of inserting plate arc-shaped surfaces, and the two inserting plate arc-shaped surfaces form inserting plate ridge at the crossed position.
8. The hollow heat-release heat-insulating plate for the riser of a die-cast extruded ingot according to claim 1, wherein the inner wall of the hanging plate is divided into two arc-shaped surfaces with different inclination angles, and the inner wall of the insert plate is divided into two arc-shaped surfaces with different inclination angles.
9. The hollow thermal release insulating plate for the riser of a die-cast extruded steel ingot according to claim 2, wherein an insert plate inner cavity is formed in the insert plate, a hanging plate inner cavity is formed in the hanging plate, and a cover plate inner cavity is formed in the insulating cover plate.
10. The hollow heat-release insulation panel for a die cast extruded ingot riser according to claim 1, wherein the shape of the plate gap between the suspending plate and the insert plate is a bent shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122719598.8U CN216758086U (en) | 2021-11-08 | 2021-11-08 | Hollow thermal-release heat-insulating plate for die casting extrusion steel ingot riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122719598.8U CN216758086U (en) | 2021-11-08 | 2021-11-08 | Hollow thermal-release heat-insulating plate for die casting extrusion steel ingot riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216758086U true CN216758086U (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122719598.8U Active CN216758086U (en) | 2021-11-08 | 2021-11-08 | Hollow thermal-release heat-insulating plate for die casting extrusion steel ingot riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216758086U (en) |
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2021
- 2021-11-08 CN CN202122719598.8U patent/CN216758086U/en active Active
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