CN220288177U - Charging structure of plug-in type aluminum alloy low-pressure casting holding furnace - Google Patents
Charging structure of plug-in type aluminum alloy low-pressure casting holding furnace Download PDFInfo
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- CN220288177U CN220288177U CN202321970584.6U CN202321970584U CN220288177U CN 220288177 U CN220288177 U CN 220288177U CN 202321970584 U CN202321970584 U CN 202321970584U CN 220288177 U CN220288177 U CN 220288177U
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- Prior art keywords
- holding furnace
- heat preservation
- pressure casting
- charging
- plug
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- 238000005266 casting Methods 0.000 title claims abstract description 19
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 18
- 238000004321 preservation Methods 0.000 claims abstract description 33
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011449 brick Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000011490 mineral wool Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 239000012774 insulation material Substances 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 41
- 229910052782 aluminium Inorganic materials 0.000 abstract description 41
- 239000007788 liquid Substances 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000002893 slag Substances 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical group C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Abstract
The utility model discloses a feeding structure of an inserted aluminum alloy low-pressure casting holding furnace, which is mainly technically characterized in that: the charging hopper top is equipped with the one end of actuating mechanism is connected to heat preservation lid, and actuating mechanism's the other end is connected with the heat preservation stove, and the charging hopper inner wall is equipped with the inner bag, and the inner bag bottom is equipped with the charging tube, and the charging tube bottom inserts in the heat preservation stove, and the last port department of charging tube is provided with ceramic filter piece. Compared with the prior art, the beneficial effects are: the manual operation workload is reduced, the energy consumption loss is reduced, the production cost is saved, the content of oxidized slag inclusion in the aluminum liquid is reduced, and the product percent of pass is improved.
Description
Technical Field
The utility model relates to the technical field of heat preservation furnaces, in particular to a feeding structure of an inserted aluminum alloy low-pressure casting heat preservation furnace.
Background
The aluminum alloy has the characteristics of small density, high strength, good formability, excellent corrosion resistance, high recovery rate and the like, and is commonly used for manufacturing parts such as a vehicle body, a chassis, a power assembly and the like in the technical field of automobiles.
The aluminum alloy is usually adopted for low-pressure casting aluminum process molding, so that the production process can be reduced, the cost of parts is reduced, the precision of the parts is higher, the material utilization rate is higher, the weight reduction effect is better, and the performance of the aluminum alloy can meet the product requirement. Therefore, the low-pressure aluminum casting process is widely applied to the production of the auxiliary frame of the automobile, and the auxiliary frame is increasingly welded by replacing a steel plate. This means that with the continuous advancement of automobile weight reduction, aluminum alloy low pressure casting has been rapidly developed and applied in the production of automobile chassis parts.
However, most of low-pressure casting equipment for auxiliary frames adopts a crucible heat preservation furnace, and because the crucible heat preservation furnace needs to be moved out of the bottom of a casting machine for feeding when molten aluminum is added in the production process, production can be stopped, and production is stopped for 20 minutes every 2 hours for feeding, so that the equipment utilization rate and the production efficiency are greatly reduced, and meanwhile, the product qualification rate is also influenced because the production is frequently interrupted. Therefore, in the prior art, the use of a dual-chamber holding furnace is currently widely known in the industry and has a tendency to gradually replace the crucible holding furnace.
The charging mechanism of the low-pressure double-chamber heat preservation furnace is movable, a charging chute is required to be manually pushed to a furnace door opening to be fixed after the furnace door is opened during charging, then aluminum water can be injected into the heat preservation furnace by using a transfer ladle, in the process of injecting the aluminum water, the aluminum water is prevented from splashing on the surface of aluminum liquid of the heat preservation furnace, the inclination of the chute cannot be too large, and the inclination is about 20 degrees, so that the length required by the chute under the premise of meeting the height and the rotating space of the transfer ladle is more than 3 times of the height. The increase of the chute length leads to the increase of the contact time of molten aluminum and air in the feeding process, and simultaneously, the molten aluminum is in a free falling state before being poured into a holding furnace to enter liquid, and besides the surface of the injected molten aluminum is in complete contact with air, the oxidation opportunity of the molten aluminum is greatly improved, splashing can be generated on the surface of the molten aluminum in the furnace, the oxidation of the molten aluminum can be caused, and the risk of casting defects can be increased due to the fact that the oxidation and the increase of the amount of dregs are generated.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a feeding structure of an inserted aluminum alloy low-pressure casting heat preservation furnace.
In order to overcome the technical problems, the utility model adopts the following technical scheme:
including the loading hopper, connect base and holding furnace, the loading hopper passes through the top of connecting the base and fix at the holding furnace, its characterized in that: the rectangular insulating cover that is equipped with of loading hopper, insulating cover intercommunication are connected actuating mechanism's one end, and actuating mechanism's the other end is connected with the holding furnace, and the loading hopper inner wall is equipped with the inner bag, and the inner bag bottom is equipped with the filling tube, and the filling tube bottom inserts with in the holding furnace, and the last port department of filling tube is provided with ceramic filter piece.
Compared with the prior art, the utility model has the beneficial effects that: the manual operation workload is reduced, the energy consumption loss is reduced, the production cost is saved, the content of oxidized slag inclusion in the aluminum liquid is reduced, and the product percent of pass is improved.
Drawings
The utility model is described in further detail below with reference to the drawings and the detailed description.
Fig. 1 is a front view of the present utility model.
Reference numerals illustrate: 1-charging hopper, 2-connection base, 3-heat preservation stove, 4-heat preservation lid, 5-inner bag, 6-charging tube, 7, ceramic filter disc, 8, actuating mechanism.
Detailed Description
As shown in fig. 1, including loading hopper 1, connection base 2 and heat preservation stove 3, loading hopper 1 is fixed in the top of heat preservation stove 3 through connection base 2, and loading hopper 1 rectangular is equipped with heat preservation lid 4, the inside heat preservation material that is equipped with of heat preservation lid 4, and heat preservation material is like: rock wool, aluminum silicate fiber mats, and the like. The heat preservation cover 4 is opened and closed through an actuating mechanism 8, wherein the actuating mechanism is a hydraulic cylinder or an air cylinder, and the actuating mechanism is selected according to the actual working condition on site. The actuating mechanism can be connected to the upper end of the holding furnace 3 or to the side wall of the holding furnace 3, and can be determined according to the opening direction of the holding cover 4.
An inner container 5 is arranged on the inner wall of the charging hopper 1, and the inner container 5 is preferably formed by sintering silica materials or alumina materials at one time; or the inner container 5 can also be built by adopting refractory bricks. The inner container 5 is embedded in the inner wall of the charging hopper 1, and when aluminum water is added into the heat preservation furnace 3, the heat preservation effect is good, the aluminum water is easy to flow and is not easy to adhere to aluminum, so that the service life of the inner container is long.
The bottom of the liner 5 is provided with a feeding tube 6, the bottom of the feeding tube 6 is inserted into the aluminum liquid in the holding furnace 3, the feeding tube 6 is formed by one-step sintering, the main component of the feeding tube is aluminum titanate, and the feeding tube has the characteristics of long service life, no aluminum adhesion and the like.
The upper port of the feeding pipe 6 is provided with a ceramic filter disc 7, and the specific ceramic filter disc 7 can be of the type: 100X100X22/10PPI. The bottom of the feeding pipe is inserted into the molten aluminum in the holding furnace 3. When charging into the holding furnace 3, after pouring aluminum liquid into the charging hopper 1 along the charging hopper wall by using a forklift, the aluminum liquid is injected into the aluminum liquid in the furnace along the charging pipe 6 by using the ceramic filter disc 7, and as the bottom of the charging pipe 6 is immersed in the aluminum liquid, the aluminum liquid is in a negative pressure state in the charging pipe 1 in the whole charging process, and is not contacted with air, and splashing can not occur, so that little oxidation is generated, and no air is involved into the aluminum liquid, that is, the generated oxidation and slag are little, and meanwhile, the aluminum liquid is filtered by using the ceramic filter disc 7, so that slag in the aluminum liquid is purified, and the quality of the aluminum liquid in the holding furnace is also improved to a great extent.
In addition, the embodiment fully calculates and verifies the design in the aspects of structural form determination, material selection, dimensional design and the like from various factors such as operability, durability, economy, effectiveness and the like. If the feeding pipe is formed by sintering an aluminum titanate inlet material with the inner diameter of 60mm and the wall thickness of 20mm, the main component is aluminum titanate inlet material at one time, and the feeding pipe has the characteristics of long service life, no aluminum adhesion, good heat preservation effect and the like
The main components of the inner container of the charging hopper are silicon oxide, aluminum oxide and the like, the material is formed by sintering according to the shape and the size at one time, and the material is an inlet material, has the characteristics of good heat preservation effect, difficult aluminum adhesion, long service life and the like, and is provided with steel plate protection outside the inner container 5 of the charging hopper 1 for preventing the charging hopper from being damaged in the use process.
The ceramic filter disc 7 is arranged at the upper end of the feeding pipe and at the bottom of the inner container 5, and the ceramic filter disc 7 not only filters oxidation slag inclusion in aluminum liquid, but also can prevent air from being involved in the process of pouring the aluminum liquid, thereby avoiding new oxidation inclusion of the aluminum liquid. The ceramic filter 7 is a honeycomb mesh with a size of 10PPI more effective.
Compared with the existing charging mode of the holding furnace of the aluminum alloy low-pressure casting machine, the embodiment has the following advantages:
1 reduces the manual operation workload, and the device is fixed above the holding furnace without manual movement.
2. The energy consumption loss is reduced, the hopper is fixed above the heat preservation furnace and integrated with the heat preservation furnace, heat preservation space is formed by utilizing heat preservation furnace gas radiation heat preservation and the heat preservation cover 4 together, and independent heating is not needed.
The existing movable chute needs to be heated and insulated by natural gas when not in use, and is heated for 20 minutes before each use, and is used for 20 times per day, wherein the natural gas consumption is about 8m3 and about 32 yuan per day, and the energy consumption cost can be saved by 8000 yuan all year round
3. Each aluminum conversion reduces the burning loss of aluminum liquid, reduces the generation of oxidized slag by about 4Kg, and reduces the waste cost by 60 yuan for a single aluminum conversion according to the price of aluminum alloy of 20 yuan/KG and the recycling price of aluminum slag of 5 yuan/KG; the aluminum is converted for 20 times every day, the waste cost is reduced by 1200 yuan every day, and the cost is about 30 ten thousand yuan every year.
4. The content of oxidized slag inclusion in the aluminum liquid is reduced, the product percent of pass is improved by at least 2%, and the risk of casting defects is reduced for parts of the product. In the industry, the comprehensive qualification of the automobile aluminum alloy auxiliary frame product is generally 80% -85%, wherein the rejection rate caused by oxidizing slag inclusion is about 5% -7%.
The utility model is not limited to the precise construction which has been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (6)
1. The utility model provides an add reinforced structure of plug-in type aluminum alloy low pressure casting holding furnace, includes the loading hopper, connects base and holding furnace, and the loading hopper passes through the top of connecting the base to be fixed at the holding furnace, its characterized in that: the charging hopper top is equipped with the one end of actuating mechanism is connected to heat preservation lid, and actuating mechanism's the other end is connected with the heat preservation stove, and the charging hopper inner wall is equipped with the inner bag, and the inner bag bottom is equipped with the charging tube, and the charging tube bottom inserts with in the heat preservation stove, and the last port department of charging tube is provided with ceramic filter piece.
2. The plug-in aluminum alloy low-pressure casting holding furnace feeding structure according to claim 1, wherein: the heat insulation cover is internally provided with a heat insulation material.
3. A plug-in aluminium alloy low pressure casting holding furnace charging structure according to claim 1 or claim 2, characterized in that: the heat insulating material is one of rock wool and aluminum silicate fiber felt.
4. The plug-in aluminum alloy low-pressure casting holding furnace feeding structure according to claim 1, wherein: the inner container is made of any one of silicon oxide material and aluminum oxide material.
5. The plug-in aluminum alloy low-pressure casting holding furnace feeding structure according to claim 1, wherein: the inner container is formed by building refractory bricks.
6. The plug-in aluminum alloy low-pressure casting holding furnace feeding structure according to claim 1, wherein: the model of the ceramic filter plate is as follows: 100X100X22/10PPI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321970584.6U CN220288177U (en) | 2023-07-25 | 2023-07-25 | Charging structure of plug-in type aluminum alloy low-pressure casting holding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321970584.6U CN220288177U (en) | 2023-07-25 | 2023-07-25 | Charging structure of plug-in type aluminum alloy low-pressure casting holding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220288177U true CN220288177U (en) | 2024-01-02 |
Family
ID=89336632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321970584.6U Active CN220288177U (en) | 2023-07-25 | 2023-07-25 | Charging structure of plug-in type aluminum alloy low-pressure casting holding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220288177U (en) |
-
2023
- 2023-07-25 CN CN202321970584.6U patent/CN220288177U/en active Active
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