CN215337661U - Furnace bottom plate of investment casting tunnel furnace - Google Patents
Furnace bottom plate of investment casting tunnel furnace Download PDFInfo
- Publication number
- CN215337661U CN215337661U CN202120889965.6U CN202120889965U CN215337661U CN 215337661 U CN215337661 U CN 215337661U CN 202120889965 U CN202120889965 U CN 202120889965U CN 215337661 U CN215337661 U CN 215337661U
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- Prior art keywords
- supporting
- frame
- furnace
- support
- bottom plate
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- 238000005495 investment casting Methods 0.000 title claims abstract description 19
- 238000005266 casting Methods 0.000 claims description 15
- 239000011449 brick Substances 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 229910052742 iron Inorganic materials 0.000 description 10
- 238000005245 sintering Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model relates to a furnace bottom plate, in particular to a furnace bottom plate of an investment casting tunnel furnace, which comprises: the support device comprises a frame, a first support rod, a second support rod and a support bottom plate, wherein the frame is rectangular; a plurality of first supporting rods are arranged in parallel, both ends of each first supporting rod are fixed on the frame, and the first supporting rods are arranged along the longitudinal direction of the frame; a plurality of second supporting rods are arranged in parallel, two ends of each second supporting rod are fixed on the frame, the second supporting rods are intersected with the first supporting rods and are mutually vertical, and the second supporting rods and the first supporting rods form grids; the number of the supporting plates is not less than two, the supporting plates are positioned at the bottom of the frame, two ends of each supporting plate are fixed on the frame, the supporting plates are parallel to the second supporting rods and are arranged below the second supporting rods, and guide grooves are formed in the bottoms of the supporting plates; the frame, the first supporting rod, the second supporting rod and the supporting plate are of an integral structure. The furnace bottom plate is in a grid shape, light in weight, fast in heat dissipation, small in heat expansion and cold shrinkage, not easy to deform and crack, convenient to hook and take and long in service life.
Description
Technical Field
The utility model relates to a furnace bottom plate, in particular to a furnace bottom plate of an investment casting tunnel furnace.
Background
When various metal parts are subjected to investment casting (wax precision casting) in a tunnel kiln, the dies are stacked by using the furnace bottom plates, the furnace bottom plates in the existing market are all solid iron plates, the weight is heavy, workers are not easy to operate when carrying the upper die, the lower die, and the method is time-consuming, labor-consuming and relatively unsafe.
Meanwhile, after the iron plate is fired at high temperature (about 900 ℃) in a furnace and taken out of the furnace, the solid iron plate is easy to crack and warp due to thermal expansion and retraction, so that the iron plate is scrapped, and the service life is generally 2-3 months; in particular, after the edges are raised all around, if the die is used continuously, the dies on which the layers are stacked can be pressed against each other to deform, and relative deformation of the cast parts can be caused.
The furnace bottom plate of the solid iron plate is easy to crust and fall off after repeated firing, thermal expansion and cold contraction, so that dust is easy to deposit in the furnace, and the cost of stopping the furnace for cleaning is increased; meanwhile, the accumulated dust also influences the actual firing temperature of the casting and the quality of the casting.
The temperature in the furnace is high, so a long rod hook is used for hooking the furnace bottom plate when the furnace is discharged, and the furnace bottom plate is pulled out along the rail, but the solid plate is inconvenient to hook by using the hook and is not easy to accurately insert the hook into the groove on the solid plate.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a furnace bottom plate of an investment casting tunnel furnace kiln, which adopts a grid form, has light weight, is not easy to deform and crack, is easy to hook by a hook, generates less iron slag and has long service life, and the specific technical scheme is as follows:
the hearth plate of the investment casting tunnel furnace comprises: the frame is rectangular; a plurality of first supporting rods are arranged in parallel, and two ends of each first supporting rod are fixed on the frame and are arranged along the longitudinal direction of the frame; a plurality of second support rods are arranged in parallel, two ends of each second support rod are fixed on the frame, the second support rods are intersected with and perpendicular to the first support rods, and the second support rods and the first support rods form grids; the number of the supporting plates is not less than two, the supporting plates are positioned at the bottom of the frame, two ends of each supporting plate are fixed on the frame, the supporting plates are parallel to the second supporting rods and are arranged below the second supporting rods, and guide grooves are formed in the bottoms of the supporting plates; the frame, the first supporting rod, the second supporting rod and the supporting plate are of an integral structure.
Through adopting above-mentioned technical scheme, second bracing piece and first bracing piece are used for supporting the casting to make the grid shape, can lighten weight, the heat dissipation is fast simultaneously, the deformation is little, difficult fracture, can not extrude the casting in the casting sintering process.
The weight is greatly reduced after the grid shape is adopted, the operation of workers is convenient, and the safety is high.
Because the thermal expansion and the cold shrinkage are reduced, the surface is not easy to crust and fall off, the iron slag generated on the surface is less, the dust deposition in the furnace is reduced, the furnace cleaning cost is reduced, the sintering influence on the cast part is small, and the sintering quality is ensured.
Due to the grid shape, the hooks are easy to hook the furnace bottom plate.
The guide groove can prevent the furnace bottom plate from moving left and right
Preferably, the top surface of the frame is higher than the top surfaces of the first support bar and the second support bar.
Through adopting above-mentioned technical scheme, the mould can be blocked by the frame, avoids the mould to slide out the bottom plate of furnace in removal or handling.
Further, still include the fire prevention brick, the fire prevention brick is equipped with a plurality ofly, and lays first bracing piece with on the second bracing piece for place the cast member.
Through adopting above-mentioned technical scheme, fire prevention brick light in weight, high temperature resistant can be used for the processing of small casting, avoids first bracing piece and second bracing piece can not support the casting.
Preferably, four corners of the top of the frame are provided with stacking blocks.
By adopting the technical scheme, the stacking blocks form gaps among the furnace bottom plates after the furnace bottom plates are stacked, so that the furnace bottom plates are convenient to take away.
Compared with the prior art, the utility model has the following beneficial effects:
the furnace bottom plate of the investment casting tunnel furnace provided by the utility model is in a grid shape, light in weight, fast in heat dissipation, small in thermal expansion and cold shrinkage, not easy to deform and crack, convenient to hook and take hooks, less in iron slag generated on the surface, small in influence on the furnace temperature, free of influence on the sintering of a cast part, long in service life, convenient to enter and exit the tunnel furnace through the guide groove at the bottom, and capable of preventing left and right deviation.
Drawings
FIG. 1 is a schematic structural view of a hearth plate of an investment casting tunnel kiln;
FIG. 2 is an elevation view of a hearth plate of the investment casting tunnel kiln;
FIG. 3 is a side view of a hearth plate of the investment casting tunnel kiln;
FIG. 4 is a rear view of the hearth plate of the investment casting tunnel kiln;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic structural view of a hearth plate of an investment casting tunnel kiln provided with three support plates;
fig. 7 is a front view of fig. 6.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 7, the bottom plate of the investment casting tunnel kiln includes a frame 1, a first support bar 2, a second support bar 3, and a support plate 4. The frame 1 is rectangular; a plurality of first supporting rods 2 are arranged in parallel and are arranged at equal intervals, and two ends of each first supporting rod 2 are fixed on the frame 1 and are arranged along the longitudinal direction of the frame 1; a plurality of second support rods 3 are arranged in parallel and are arranged at equal intervals, two ends of each second support rod 3 are fixed on the frame 1, the second support rods 3 are intersected with the first support rods 2 and are perpendicular to each other, and the second support rods 3 and the first support rods 2 form grids; at least two support plates 4 are arranged, the support plates 4 are positioned at the bottom of the frame 1, two ends of each support plate 4 are fixed on the frame 1, the support plates 4 are parallel to the second support rods 3 and are arranged below the second support rods 3, guide grooves 6 are formed in the bottoms of the support plates 4, and the guide grooves 6 are through grooves; the frame 1, the first support rod 2, the second support rod 3 and the support plate 4 are of an integral structure.
The furnace bottom plate is of an integral structure, so that a casting is adopted, and the processing is convenient.
The second supporting rod 3 and the first supporting rod 2 are used for supporting the casting parts and are made into a grid shape, so that the weight can be reduced, meanwhile, the heat dissipation is fast, the deformation is small, the cracking is not easy, the casting parts cannot be extruded in the sintering process of the casting parts, and the service life of the furnace bottom plate is prolonged.
After the grid is adopted, the weight is greatly reduced, the operation of workers is convenient, labor is saved, and the safety is high.
Because the thermal expansion and the cold shrinkage are reduced, the surface is not easy to crust and fall off, the iron slag generated on the surface is less, the dust deposition in the furnace is reduced, the furnace cleaning cost is reduced, the sintering influence on the cast part is small, and the sintering quality is ensured.
Compared with a solid plate, the iron slag falling off from the surface is relatively less, the furnace cleaning cost is reduced, and the cost and the production time are greatly saved; meanwhile, after the residue is reduced, the temperature in the furnace is relatively stable, and the product quality is guaranteed.
Due to the grid shape, the hooks are easy to hook the furnace bottom plate.
The guide groove 6 is used for corresponding to the roller on the track, so that the furnace bottom plate can conveniently enter and exit the tunnel furnace kiln, and the furnace bottom plate can be prevented from being deviated left and right, so that the furnace bottom plate is kept at the center of the tunnel furnace kiln.
The top surface of the frame 1 is higher than the top surfaces of the first support bar 2 and the second support bar 3. The mould can be blocked by the frame 1, and the mould is prevented from sliding out of the furnace bottom plate in the moving or carrying process.
Four corners at the top of the frame 1 are provided with stacking blocks 5. The stacking blocks 5 form gaps among the furnace bottom plates after the furnace bottom plates are stacked, so that the furnace bottom plates are convenient to take away.
As shown in fig. 6 and 7, the number of the support plates 4 is three, and the number of the support plates 4 is determined according to the size and the track of the furnace floor.
Example two
On the basis of the first embodiment, the fireproof brick is further included, and a plurality of fireproof bricks are arranged and paved on the first supporting rod 2 and the second supporting rod 3 for placing casting parts.
The fireproof brick is light in weight and high-temperature resistant, can be used for machining small-size casting parts, and avoids the situation that the first supporting rod 2 and the second supporting rod 3 cannot support the casting parts.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.
Claims (4)
1. The bottom plate of investment casting tunnel furnace stove which characterized in that includes:
the frame (1), the frame (1) is rectangular;
a plurality of first supporting rods (2), wherein the first supporting rods (2) are arranged in parallel, and two ends of each first supporting rod (2) are fixed on the frame (1) and arranged along the longitudinal direction of the frame (1);
a plurality of second support rods (3), wherein the second support rods (3) are arranged in parallel, two ends of each second support rod (3) are fixed on the frame (1), the second support rods (3) are intersected with the first support rods (2) and are mutually perpendicular to the first support rods (2), and the second support rods (3) and the first support rods (2) form grids;
the number of the supporting plates (4) is not less than two, the supporting plates (4) are located at the bottom of the frame (1), two ends of each supporting plate (4) are fixed on the frame (1), the supporting plates (4) are parallel to the second supporting rod (3) and are arranged below the second supporting rod (3), and a guide groove (6) is formed in the bottom of each supporting plate (4); and
the frame (1), the first supporting rod (2), the second supporting rod (3) and the supporting plate (4) are of an integral structure.
2. The hearth plate of an investment casting tunnel kiln according to claim 1, wherein the top surface of the frame (1) is higher than the top surfaces of the first support bar (2) and the second support bar (3).
3. The hearth plate of an investment casting tunnel kiln according to claim 2, further comprising a plurality of fire bricks laid on the first support bar (2) and the second support bar (3) for placing castings.
4. The hearth plate of an investment casting tunnel kiln according to claim 1, characterized in that stacking blocks (5) are provided on four corners of the top of the frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120889965.6U CN215337661U (en) | 2021-04-27 | 2021-04-27 | Furnace bottom plate of investment casting tunnel furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120889965.6U CN215337661U (en) | 2021-04-27 | 2021-04-27 | Furnace bottom plate of investment casting tunnel furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215337661U true CN215337661U (en) | 2021-12-28 |
Family
ID=79596436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120889965.6U Expired - Fee Related CN215337661U (en) | 2021-04-27 | 2021-04-27 | Furnace bottom plate of investment casting tunnel furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215337661U (en) |
-
2021
- 2021-04-27 CN CN202120889965.6U patent/CN215337661U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211228 |