CN216801612U - Alloy casting equipment - Google Patents
Alloy casting equipment Download PDFInfo
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- CN216801612U CN216801612U CN202123414029.9U CN202123414029U CN216801612U CN 216801612 U CN216801612 U CN 216801612U CN 202123414029 U CN202123414029 U CN 202123414029U CN 216801612 U CN216801612 U CN 216801612U
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Abstract
The utility model relates to the technical field of casting, and particularly discloses alloy casting equipment which comprises a casting device, a cooling system, an air injection system, a temperature measurement system and a control system for controlling the whole equipment, wherein the cooling system comprises a primary graphite cooling device and a secondary water cooling device, the primary graphite cooling device is fixed on the casting device, the secondary water cooling device is arranged between the primary graphite cooling device and the air injection system, the air injection system controls air injection through the control system, and the temperature measurement system monitors the temperature of a casting and transmits the temperature to the control system. The casting device, the cooling system, the blowing device and the temperature measuring system are sequentially arranged, cooling water on the surface of the casting is blown off by the blowing device after the casting rod is cooled, so that the interior of the casting is still crystallized after the water on the surface of the casting is blown off, latent heat of crystallization is further released, the temperature of the casting is increased, stress generated by rapid cooling in the casting is reduced, and cracks in the casting are reduced.
Description
Technical Field
The utility model relates to the technical field of casting, in particular to alloy casting equipment.
Background
In the field of hot-top horizontal casting, Al-Zn aluminum alloy brings difficulty to casting due to high strength, and in the traditional hot-top casting process, molten aluminum is sprayed on the surface of a cast rod for cooling by using large water after being formed by a crystallizer so as to promote the cooling of the cast rod. The water sprayed on the surface of the aluminum bar generally flows down along the surface of the aluminum bar, thereby further cooling the cast bar. If the cooling rate is too high during casting, high stresses tend to be generated during casting of the cast rod, resulting in cold cracking. If the cooling rate is too slow, thermal cracking is likely to occur. Therefore, the yield of the aluminum alloy cast by the Al-Zn aluminum alloy hot top is always low, which is a difficult problem in the aluminum alloy industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem in the casting process of aluminum alloy in the background technology, add a blowing system and a temperature measuring system, treat cooling water on the surface of a cast rod, reduce stress deformation in the cast rod caused by rapid cooling and avoid cracks.
In order to achieve the purpose, the utility model provides a pipe casting device which comprises a casting device, a cooling system, an air injection system, a temperature measurement system and a control system of the control device, wherein the cooling system, the air injection system and the temperature measurement system are sequentially arranged along a discharge hole of the casting device, the cooling system comprises a primary graphite cooling device and a secondary water cooling device, the primary graphite cooling device is fixed on the casting device, the secondary water cooling device is arranged between the primary graphite cooling device and the air injection system, the air injection system controls air injection through the control system, and the temperature measurement system monitors the temperature of a casting and transmits the temperature to the control system.
Further, the temperature measurement system comprises an infrared temperature monitor, the infrared temperature monitor transmits the detected temperature to the control system, and the control system controls the gas injection system according to the temperature monitored by the infrared temperature monitor.
Further, the gas injection system comprises a high-pressure gas pump, a high-pressure gas nozzle and a gas nozzle mounting frame, the high-pressure gas nozzle is installed on the gas nozzle mounting frame, the high-pressure gas nozzle is connected with the high-pressure gas pump, and the high-pressure gas pump is in signal connection with the control system.
Further, the gas injection system includes high-pressure gas pump, high-pressure gas nozzle and electronic flexible mounting bracket, the high-pressure gas nozzle with high-pressure gas pump is connected, the high-pressure gas nozzle is installed on the electronic flexible mounting bracket, electronic flexible mounting bracket with signal connection between the control system.
Furthermore, the number of high-pressure gas nozzles is a plurality of, a plurality of high-pressure gas nozzles are distributed along the circumferential direction interval of foundry goods, every high-pressure gas nozzle with connect through rotatory subassembly respectively between the gas mounting bracket, every rotation assembly is controlled respectively to control system.
Furthermore, a plurality of high-pressure gas nozzles are arranged on the electric telescopic mounting frame at intervals.
Further, second grade water cooling plant includes water tank, high pressure water spray nozzle and water spray nozzle mounting bracket, the high pressure water spray nozzle passes through the water spray nozzle mounting bracket is installed, and the shower nozzle of high pressure water spray nozzle is towards the foundry goods, be equipped with the suction pump in the water tank, the high pressure water spray nozzle with pass through the pipe connection between the suction pump.
Further, the primary graphite cooling device is a graphite ring, and the graphite ring is fixed at an outlet of the casting device.
The utility model has the beneficial effects that:
1. according to the casting equipment, the primary graphite ring cooling and the secondary cooling water cooling are sequentially arranged on the discharging route of the casting, the primary graphite ring cools liquid aluminum, and meanwhile, a vapor film is formed between the graphite ring and the pipe, so that the hard contact between a thin solidified shell formed at the early solidification stage of an alloy melt and the inner wall of the graphite ring is changed into the flexible contact, and the damage to the surface of the casting is reduced.
2. The casting equipment provided by the utility model blows off the cooling water on the surface of the casting through the blowing device, so that the interior of the casting can still continue to crystallize after the water on the surface of the casting is blown off, and further releases crystallization latent heat, thereby improving the temperature of the casting, reducing the stress generated by rapid cooling in the casting and reducing the generation of cracks in the casting; and the angle of the blowing device can be adjusted at will, so that different blowing forces can be adopted at different stages.
3. The casting equipment provided by the utility model also monitors the temperature of the casting through the infrared temperature monitor, and regulates the air flow according to the temperature of the cast rod so as to control the subsequent cooling strength, thereby better controlling the temperature of the cast rod and reducing the stress in the cast rod.
4. The casting equipment of the utility model utilizes the heat generated in the crystallization process of the cast rod to control the temperature of the cast rod to be slowly cooled to be below 100 ℃ so as to fully release the stress generated in the cooling process of the cast rod and reduce the cracking tendency of the cast rod, thereby improving the casting yield of the Al-Zn cast rod.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a casting apparatus of the present invention;
FIG. 2 is a schematic structural view of an embodiment of the gas injection system of the casting apparatus of the present invention;
FIG. 3 is a schematic structural view of another embodiment of the gas injection system of the casting apparatus of the present invention;
FIG. 4 is a partial schematic view of the attachment of a high pressure gas nozzle to a nozzle mounting bracket of the gas injection system of the casting apparatus of the present invention.
In the figure: the method comprises the following steps of 1-casting device, 2-primary graphite cooling device, 3-secondary water cooling device, 4-high-pressure gas nozzle, 5-gas nozzle mounting rack, 6-electric telescopic mounting rack, 7-infrared temperature monitor, 8-casting, 9-rotating motor, 10-first gear, 11-second gear, 12-rotating rack and 13-rotating shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a specific embodiment of the present invention, as shown in fig. 1 to 2, a pipe casting apparatus includes a casting device 1, a cooling system, an air injection system, a temperature measurement system, and a control system for controlling the entire system, wherein the cooling system, the air injection system, and the temperature measurement system are sequentially disposed along a discharge port of the casting device 1, the cooling system includes a primary graphite cooling device 2 and a secondary water cooling device 3, the primary graphite cooling device 2 is fixed on the casting device 1, the secondary water cooling device 3 is disposed between the primary graphite cooling device 2 and the air injection system, the air injection system controls air injection through the control system, and the temperature measurement system monitors a temperature of a casting and transmits the temperature to the control system.
Preferably, the primary graphite cooling device 2 is a graphite ring fixed at the outlet of the casting device. The second-stage water cooling device 3 comprises a water tank, a high-pressure water nozzle and a water nozzle mounting frame, the high-pressure water nozzle passes through the water nozzle mounting frame, a spray head of the high-pressure water nozzle faces the casting 8, a suction pump is arranged in the water tank, and the high-pressure water nozzle is connected with the suction pump through a pipeline.
The gas injection system includes high-pressure gas pump, high-pressure gas nozzle 4 and air cock mounting bracket 5, high-pressure gas nozzle 4 is installed on the air cock mounting bracket 5, the distance between high-pressure gas nozzle and the graphite ring is about 500mm, high-pressure gas nozzle 4 with high-pressure gas pump connects, high-pressure gas pump with signal connection between the control system, high-pressure gas nozzle's gaseous pressing force is about 0.2-0.3 MPa.
The number of the high-pressure gas nozzles is a plurality, and the high-pressure gas nozzles 4 are distributed at intervals along the circumferential direction of the casting 8. Each high-pressure gas nozzle 4 is respectively connected with the high-pressure gas pump, and the control system controls each high-pressure gas nozzle 4 to independently spray gas. Each high-pressure gas nozzle 4 is connected with the gas nozzle mounting rack 5 through a rotating assembly (as shown in fig. 4), and a control system controls each rotating assembly. Rotating assembly drives high-pressure gas nozzle 4 centers on under control system's control gas mounting bracket 5 rotates, every rotating assembly includes first gear 10, second gear 11, swivel mount 12 and rotating electrical machines 9, first gear 10 is installed on the air cock mounting bracket 5, swivel mount 12 is the U-shaped frame, the both sides wall cover of swivel mount 12 is established on the air cock mounting bracket 5, second gear 12 is installed through pivot 13 between the both sides wall of swivel mount 12, second gear 12 with fixed connection between the pivot 13, second gear 12 with first gear 10 meshing, rotating electrical machines 9 with pivot 13 is connected, control system control rotating electrical machines 9 action, high-pressure gas nozzle 4 is installed on swivel mount 12. The control system controls the rotating motor 9 to work, the rotating motor 9 drives the rotating shaft 13 to rotate, the second gear 11 arranged on the rotating shaft 13 is meshed with the first gear 10 to drive the rotating frame 12 to rotate, and therefore the high-pressure gas nozzle 4 is driven to rotate to a required position. Control system control air cock mounting bracket 5 goes up the shower nozzle orientation of one-third high-pressure gas nozzle 4 and is close to cooling device's one side, two-thirds high-pressure gas nozzle 4 shower nozzle is towards one side of temperature measurement system, the angle of high-pressure gas nozzle 4 shower nozzle can be adjusted by control system control, makes the blowing power that the bar received in different stages all inequality, reduces the production of inside crackle when better assurance is refrigerated.
The temperature measurement system comprises an infrared temperature monitor 7, the temperature detected by the infrared temperature monitor 7 is transmitted to the control system, and the control system controls the injection force of the high-pressure gas nozzle 4. The temperature of the casting 8 is preferably 250-300 ℃, and if the temperature of the casting monitored by the infrared temperature monitor 7 is too high, the jetting force of the high-pressure gas nozzle is properly reduced; if the infrared temperature monitor 7 monitors that the temperature of the casting 8 is too low, the jetting force of the high-pressure gas nozzle is properly increased.
In another embodiment of the present invention, as shown in fig. 3, the gas injection system includes a high pressure gas pump, a high pressure gas nozzle 4 and an electric telescopic mounting frame 6, the high pressure gas nozzle 4 is connected to the high pressure gas pump, the high pressure gas nozzle 4 is mounted on the electric telescopic mounting frame 6, and the electric telescopic mounting frame 6 is in signal connection with the control system. Preferably, the quantity of electric telescopic mounting bracket 6 is two, two electric telescopic mounting bracket 6 sets up respectively the both sides of foundry goods 8, two electric telescopic mounting bracket 6 all with control system connects, control system control electric telescopic mounting bracket is flexible. And a plurality of high-pressure gas nozzles 4 are respectively arranged on each electric telescopic mounting frame 6 at intervals. The temperature of the casting 8 is preferably 250-300 ℃, and if the infrared temperature monitor 7 monitors that the temperature of the casting 8 is too high, the electric telescopic mounting rack 7 is lowered; if the temperature of the casting 8 monitored by the infrared temperature monitor 6 is too low, the electric telescopic mounting frame 6 is lifted.
The casting equipment of the utility model has the working process that: injecting the smelted melt into a casting mold of a casting device to obtain an alloy casting, controlling the temperature of molten aluminum in the casting device at 700-730 ℃, controlling the temperature of molten aluminum on a mold plate at 665-690 ℃, and controlling the casting speed: 65-75mm/min, cooling water flow: 2500-3100L/min, and the temperature of cooling water is 28 ℃; firstly, carrying out primary cooling on the cast rod after casting molding through a primary graphite cooling device, and then carrying out water cooling through a secondary water cooling device; and the water-cooled cast rod enters an air injection system, the high-pressure air nozzle blows air to remove cooling water on the surface of the cast rod, the temperature measurement system detects the temperature on the surface of the cast rod, simultaneously compares the measured temperature with the set temperature, and transmits the comparison result to the air injection system.
The temperature measuring system comprises an infrared temperature monitor, the infrared temperature monitor transmits the detected temperature of the cast rod to the control system, the control system compares the temperature of the cast rod with a preset temperature value of 250-300 ℃, and then the blowing system is regulated and controlled; if the temperature of the cast rod is too high, the control system controls the blowing system to reduce the gas pressure or controls the high-pressure gas nozzle to be far away from the cast rod; if the temperature of the casting bar is too low, the control system controls the blowing system to increase the gas pressure or controls the high-pressure gas nozzle to be close to the casting bar.
The temperature measured by the infrared temperature monitor is fed back to the control system, and the control system controls the spraying angle, distance and pressure of the high-pressure gas nozzles and the number of the high-pressure gas nozzles needing to work according to the temperature of the cast rod, so that the cooling process of the cast rod is accurately controlled.
The casting equipment can effectively reduce the cracking problem easily caused by overlarge internal stress in the forming process of the large-diameter (more than 300 mm) Al-Zn cast rod, and improve the yield to more than 90 percent.
The above disclosure is only one preferred embodiment of the present invention, and certainly should not be construed as limiting the scope of the utility model, which is defined by the claims and their equivalents.
Claims (8)
1. The utility model provides an alloy casting equipment, its characterized in that, includes the control system of casting device, cooling system, jet-propelled system, temperature measurement system and the whole equipment of control, cooling system, jet-propelled system and temperature measurement system follow the discharge gate ejection of compact direction of casting device sets gradually, cooling system includes one-level graphite cooling device and second grade water cooling plant, one-level graphite cooling device fixes on the casting device, the second grade water cooling plant sets up one-level graphite cooling device with between the jet-propelled system, the jet-propelled system passes through control system control is jet-propelled, temperature measurement system carries out the temperature monitoring of foundry goods and conveys control system.
2. An alloy casting apparatus as claimed in claim 1, wherein the temperature measurement system comprises an infrared temperature monitor which communicates the sensed temperature to the control system, the control system controlling the gas injection system in dependence on the temperature monitored by the infrared temperature monitor.
3. The alloy casting apparatus of claim 1, wherein the gas injection system comprises a high pressure gas pump, a high pressure gas nozzle and a gas nozzle mounting bracket, the high pressure gas nozzle is mounted on the gas nozzle mounting bracket, the high pressure gas nozzle is connected with the high pressure gas pump, and the high pressure gas pump is connected with the control system.
4. The alloy casting equipment of claim 1, wherein the gas injection system comprises a high-pressure gas pump, a high-pressure gas nozzle and an electric telescopic mounting frame, the high-pressure gas nozzle is connected with the high-pressure gas pump, the high-pressure gas nozzle is mounted on the electric telescopic mounting frame, and the electric telescopic mounting frame is connected with the control system.
5. An alloy casting apparatus as claimed in claim 3, wherein the number of said high pressure gas nozzles is plural, and plural of said high pressure gas nozzles are spaced apart in the circumferential direction of the casting.
6. An alloy casting apparatus as claimed in claim 4, wherein the electrically telescopic mounting frame is provided with a plurality of high pressure gas nozzles at intervals.
7. The alloy casting equipment as claimed in claim 1, wherein the secondary water cooling device comprises a water tank, a high-pressure water nozzle and a water nozzle mounting frame, the high-pressure water nozzle is mounted through the water nozzle mounting frame, a nozzle of the high-pressure water nozzle faces the casting, a suction pump is arranged in the water tank, and the high-pressure water nozzle is connected with the suction pump through a pipeline.
8. An alloy casting apparatus as claimed in claim 1, wherein the primary graphite cooling means is a graphite ring fixed at the exit of the casting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123414029.9U CN216801612U (en) | 2021-12-31 | 2021-12-31 | Alloy casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123414029.9U CN216801612U (en) | 2021-12-31 | 2021-12-31 | Alloy casting equipment |
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| Publication Number | Publication Date |
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| CN216801612U true CN216801612U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123414029.9U Active CN216801612U (en) | 2021-12-31 | 2021-12-31 | Alloy casting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309561A (en) * | 2021-12-31 | 2022-04-12 | 亚太轻合金(南通)科技有限公司 | Alloy casting equipment and method |
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2021
- 2021-12-31 CN CN202123414029.9U patent/CN216801612U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309561A (en) * | 2021-12-31 | 2022-04-12 | 亚太轻合金(南通)科技有限公司 | Alloy casting equipment and method |
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