CN213388803U - Heat treatment device capable of achieving partitioned independent heating - Google Patents
Heat treatment device capable of achieving partitioned independent heating Download PDFInfo
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- CN213388803U CN213388803U CN202022138722.7U CN202022138722U CN213388803U CN 213388803 U CN213388803 U CN 213388803U CN 202022138722 U CN202022138722 U CN 202022138722U CN 213388803 U CN213388803 U CN 213388803U
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Abstract
A heat treatment device with partitioned independent heating comprises an upper furnace body and a lower furnace body which are detachably connected, wherein an inner furnace chamber is arranged between the upper furnace body and the lower furnace body, an outer furnace chamber is arranged on the periphery of the inner furnace chamber, a disc workpiece is arranged in the middle of the inner furnace chamber and the outer furnace chamber between the connecting surfaces of the upper furnace body and the lower furnace body; when the cooling device works, the upper furnace body is moved away, the disc type workpieces are placed in the middle of the inner furnace chamber and the outer furnace chamber, then the upper furnace body is moved back, the disc type workpieces are directly contacted with the cooling pipeline, and the upper furnace body and the lower furnace body are tightly closed; vacuumizing the inner furnace chamber and the outer furnace chamber by a vacuumizing device, then respectively turning on a power supply, and performing gradient heat treatment on the disc workpieces in the outer furnace chamber and the inner furnace chamber by temperature control; the utility model has the advantages of rational in infrastructure, easy operation, the leakproofness well reaches practical efficient.
Description
Technical Field
The utility model relates to a heat treatment device, concretely relates to heat treatment device of subregion independent heating.
Background
The aircraft engine determines the development of the aerospace industry in a country, and the turbine disk is used as a key core component in the engine and is called the crown of the engine. The turbine disk has high working temperature, and not only has excellent oxidation resistance and hot corrosion resistance, but also has long-term structure stability at high temperature and good mechanical property. Furthermore, there is a significant difference in the operating environment to which a turbine disk is subjected from the center of the disk to the rim: the disk core is connected with the shaft and bears the very large centrifugal tensile stress generated by the rotation of the turbine blades, but the working temperature is relatively low; the centrifugal tensile stress on the disc edge is small, but the disc edge is in direct contact with fuel gas and has high working temperature. Therefore, the dual-performance requirements are provided for the disc type workpieces, namely, the disc core has higher yield strength, tensile strength and low cycle fatigue performance, and the disc rim has higher high-temperature creep resistance and better crack expansion resistance; the dual-performance turbine disc with the disc core having the fine grain structure and the disc edge having the coarse grain structure has to be prepared, so that the performance advantages of the fine grain structure under low-temperature high stress and the coarse grain structure under high-temperature low stress are fully exerted, the requirement of the turbine disc on dual performance is met, and the thrust-weight ratio of the engine is greatly improved.
In order to obtain a microstructure having a gradient distribution of crystal grain sizes, a gradient heat treatment is required for the disk-like member. The existing gradient heat treatment furnace adopts a single-layer furnace body, has the defects of high heat transfer speed, small temperature gradient and the like, and cannot obtain a microstructure with obviously gradient-distributed grain sizes.
Disclosure of Invention
In order to overcome the defect that above-mentioned prior art exists, the utility model aims to provide a heat treatment device of subregion independent heating divide into two inside and outside independent furnace chambers with traditional single furnace chamber to independently heat two furnace chambers, reach better temperature control, strengthen cooling pipeline's cooling effect, realize temperature gradient and distribute, and prevent the high temperature oxidation of work piece in heat treatment process, have rational in infrastructure, convenient operation, the leakproofness well and practical efficient advantage.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
A heat treatment device with partitioned independent heating comprises an upper furnace body 2 and a lower furnace body 18 which are detachably connected, wherein an inner furnace chamber 9 is arranged between the upper furnace body 2 and the lower furnace body 18, an outer furnace chamber 19 is arranged on the periphery of the inner furnace chamber 9, a disc-type workpiece 8 is arranged between the connecting surfaces of the upper furnace body 2 and the lower furnace body 18, and the center of the inner furnace chamber 9 and the center of the outer furnace chamber 19 are provided with disc-type workpieces;
the periphery of the inner furnace chamber 9 is surrounded in the heat insulation walls of the upper furnace body 2 and the lower furnace body 18, cooling pipelines 5 are respectively coiled, the cooling pipelines 5 are respectively provided with a water inlet 6 and a water outlet 22, the water flow output side of the water inlet 6 is connected with the water inlet end of a circulating pump 7, and the water outlet end of the circulating pump 7 is connected with the water flow input end of the cooling pipeline 5;
a plurality of thermocouples 3 are respectively inserted into the top wall of the inner furnace chamber 9 and the bottom wall of the outer furnace chamber 19, the thermocouples 3 are contacted with the disc-type workpieces 8, the temperature of the disc-type workpieces 8 is detected, and temperature signals are transmitted to an external temperature control module; the top wall of the inner furnace chamber 9 and the bottom wall of the outer furnace chamber 19 are respectively provided with a heating resistance wire 4; one side of the lower furnace body 18 is provided with a vacuum extractor 14, a first air extraction opening 23a of the vacuum extractor 14 is communicated with the inner furnace chamber 9, and a second air extraction opening 23b is communicated with the outer furnace chamber 19.
The upper furnace body 2 is tightly connected with the lower furnace body 18 through high temperature resistant sealant 12.
The heating resistance wires 4 are respectively fixed on the top wall and the bottom wall of the inner furnace chamber 9 and the outer furnace chamber 19 through the brackets 21, and the heating resistance wires 4 of the inner furnace chamber 9 and the outer furnace chamber 19 can be independently heated.
At least one of said thermocouples 3 is present per oven chamber.
The cooling pipeline 5 at the joint of the upper furnace body 2 and the lower furnace body 18 is in direct contact with the disc-type workpiece 8.
The cooling pipeline 5 is made of copper alloy.
And heat insulation walls are arranged among the inner furnace chamber 9, the outer furnace chamber 19 and the external space.
The inner walls of the inner furnace chamber 9 and the outer furnace chamber 19 are filled with aluminum silicate fibers.
The periphery of the upper furnace body 2 is connected with the middle section of the corresponding support rod 11 through a plurality of connecting rings 13, the bottom end of the support rod 11 is fixed on the base 16, and the top end of the support rod 11 is provided with a baffle 1.
The beneficial effects of the utility model reside in that:
the utility model discloses a divide into interior furnace chamber 9 and outer furnace chamber 19 with the furnace chamber to interior furnace chamber 9 and the independent heating of outer furnace chamber 19 are with reaching better temperature control. The inner furnace chamber 9 and the outer furnace chamber 19 are separated by a heat insulation wall, the cooling pipeline 5 is distributed in the heat insulation wall, the cooling pipeline 5 is a copper alloy pipeline and is coiled in the heat insulation wall, the cooling pipeline 5 is directly contacted with the disc type workpiece 8, and the cooling effect is better; the up-and-down movement of the upper furnace body 2 is better controlled through the support rods 11, and meanwhile, the support rods 11 are arranged outside the furnace to better control the temperature in order to prevent the heat-conducting property of the support rods 11 from influencing the temperature gradient in the furnace; the device is provided with a vacuum pumping device 14 to prevent the disc-like workpiece 8 from being oxidized at high temperature in the heat treatment process; the closed parts of the upper furnace body and the lower furnace body are sealed by adopting high-temperature-resistant sealant 12, so that a better sealing effect is achieved.
To sum up, the utility model has the advantages of rational in infrastructure, easy operation, the leakproofness well reaches practical efficient.
Drawings
Fig. 1 is a schematic structural diagram of the device of the present invention.
Fig. 2 is a top view of the device of the present invention.
In the figure, 1, a baffle; 2. an upper furnace body, 3, a thermocouple; 4. heating resistance wires; 5. a cooling duct; 6. a water inlet; 7. a circulation pump; 8. a disc-like workpiece; 9. an inner furnace chamber; 10. the upper wall of the inner furnace body; 11. a support bar; 12. high-temperature resistant sealant; 13. a connecting ring; 14. a vacuum pumping device; 15. a bolt; 16. a base; 17. a universal wheel; 18. a lower furnace body; 19. an outer furnace chamber; 20. the lower wall of the inner furnace body; 21. a support; 22. a water outlet 23a and a first air extraction opening; 23b and a second air extraction opening.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a heat treatment device with partitioned independent heating comprises an upper furnace body 2 and a lower furnace body 18 which are detachably connected, wherein an inner furnace chamber 9 is arranged between the upper furnace body 2 and the lower furnace body 18, an outer furnace chamber 19 is arranged on the periphery of the inner furnace chamber 9, a disc-like workpiece 8 is arranged between the connecting surfaces of the upper furnace body 2 and the lower furnace body 18, and the center of the inner furnace chamber 9 and the center of the outer furnace chamber 19;
the periphery of the inner furnace chamber 9 is surrounded in the heat insulation walls of the upper furnace body 2 and the lower furnace body 18, cooling pipelines 5 are respectively coiled, the cooling pipelines 5 are respectively provided with a water inlet 6 and a water outlet 22, the water flow output side of the water inlet 6 is connected with the water inlet end of a circulating pump 7, and the water outlet end of the circulating pump 7 is connected with the water flow input end of the cooling pipeline 5;
a plurality of thermocouples 3 are respectively inserted into the top wall of the inner furnace chamber 9 and the bottom wall of the outer furnace chamber 19, the thermocouples 3 are contacted with the disc-type workpieces 8, the temperature of the disc-type workpieces 8 is detected, and temperature signals are transmitted to an external temperature control module; the top wall of the inner furnace chamber 9 and the bottom wall of the outer furnace chamber 19 are respectively provided with a heating resistance wire 4; one side of the lower furnace body 18 is provided with a vacuum extractor 14, a first air extraction opening 23a of the vacuum extractor 14 is communicated with the inner furnace chamber 9, and a second air extraction opening 23b is communicated with the outer furnace chamber 19.
The upper furnace body 2 is tightly connected with the lower furnace body 18 through high temperature resistant sealant 12.
The heating resistance wires 4 are respectively fixed on the top wall and the bottom wall of the inner furnace chamber 9 and the outer furnace chamber 19 through the brackets 21, and the heating resistance wires 4 of the inner furnace chamber 9 and the outer furnace chamber 19 can be independently heated.
At least one of said thermocouples 3 is present per oven chamber.
The cooling pipeline 5 at the joint of the upper furnace body 2 and the lower furnace body 18 is in direct contact with the disc-type workpiece 8.
The cooling pipeline 5 is made of copper alloy.
And heat insulation walls are arranged among the inner furnace chamber 9, the outer furnace chamber 19 and the external space.
The inner walls of the inner furnace chamber 9 and the outer furnace chamber 19 are filled with aluminum silicate fibers.
The periphery of the upper furnace body 2 is connected with the middle section of the corresponding support rod 11 through a plurality of connecting rings 13, the bottom end of the support rod 11 is fixed on the base 16, and the top end of the support rod 11 is provided with a baffle 1.
The number of the connecting rings 13 is at least 2, and the connecting rings are evenly distributed on the periphery of the upper furnace body 2.
The bottom of the lower furnace body 18 is provided with universal wheels 17.
The utility model discloses a theory of operation does:
the utility model adopts the inner and outer double-layer furnace bodies to replace the traditional heat treatment furnace, when in work, the upper furnace body 2 is firstly moved away, the disc type workpiece 8 is placed in the middle of the inner furnace chamber 9 and the outer furnace chamber 19, then the upper furnace body 2 is moved back, the disc type workpiece 8 is ensured to be in direct contact with the cooling pipeline 5, and the upper furnace body 2 and the lower furnace body 18 are closed tightly; the inner furnace chamber 9 and the outer furnace chamber 19 are vacuumized by the vacuumizing device 14, then power supplies are respectively turned on, and the disc type workpieces 8 in the outer furnace chamber 19 and the inner furnace chamber 9 are subjected to gradient heat treatment through temperature control, so that a microstructure with the grain size in gradient distribution is obtained, and the service performance requirements of the microstructure are met.
Claims (9)
1. The utility model provides a heat treatment device of subregion independent heating, includes last furnace body (2) and lower furnace body (18) that can dismantle the connection, its characterized in that: an inner furnace chamber (9) is arranged between the upper furnace body (2) and the lower furnace body (18), an outer furnace chamber (19) is arranged on the periphery of the inner furnace chamber (9), and a disc-like workpiece (8) is placed in the middle of the inner furnace chamber (9) and the outer furnace chamber (19) between the connecting surfaces of the upper furnace body (2) and the lower furnace body (18); the periphery of an inner furnace chamber (9) is surrounded in the heat insulation walls of the upper furnace body (2) and the lower furnace body (18), cooling pipelines (5) are respectively coiled, the cooling pipelines (5) are respectively provided with a water inlet (6) and a water outlet (22), the water flow output side of the water inlet (6) is connected with the water inlet end of a circulating pump (7), and the water outlet end of the circulating pump (7) is connected with the water flow input end of the cooling pipeline (5); a plurality of thermocouples (3) are respectively inserted into the top wall of the inner furnace chamber (9) and the bottom wall of the outer furnace chamber (19), the thermocouples (3) are contacted with the disc-type workpieces (8), the temperature of the disc-type workpieces (8) is detected, and temperature signals are transmitted to an external temperature control module; the top wall of the inner furnace chamber (9) and the bottom wall of the outer furnace chamber (19) are respectively provided with a heating resistance wire (4); one side of the lower furnace body 18 is provided with a vacuumizing device (14), a first air extraction opening (23a) of the vacuumizing device (14) is communicated with the inner furnace chamber (9), and a second air extraction opening (23b) is communicated with the outer furnace chamber (19).
2. The apparatus according to claim 1, wherein: the upper furnace body (2) is connected with the lower furnace body (18) in a sealing way through high-temperature-resistant sealant (12).
3. The apparatus according to claim 1, wherein: the heating resistance wires (4) are respectively fixed on the top wall and the bottom wall of the inner furnace chamber (9) and the outer furnace chamber (19) through the brackets (21), and the heating resistance wires (4) of the inner furnace chamber (9) and the outer furnace chamber (19) can be independently heated.
4. The apparatus according to claim 1, wherein: at least one thermocouple (3) is arranged in each furnace chamber.
5. The apparatus according to claim 1, wherein: and a cooling pipeline (5) at the joint of the upper furnace body (2) and the lower furnace body (18) is in direct contact with the disc-type workpiece (8).
6. The apparatus according to claim 1, wherein: the cooling pipeline (5) is made of copper alloy.
7. The apparatus according to claim 1, wherein: and heat insulation walls are arranged among the inner furnace chamber (9), the outer furnace chamber (19) and the external space.
8. The heat treatment apparatus with separate heating according to claim 1 or 7, wherein: the outer walls of the inner furnace chamber (9) and the outer furnace chamber (19) are wrapped with aluminum silicate fibers.
9. The apparatus according to claim 1, wherein: the periphery of the upper furnace body (2) is connected with the middle section of the corresponding support rod (11) through a plurality of connecting rings (13), the bottom end of the support rod (11) is fixed on the base (16), and the top end of the support rod (11) is provided with a baffle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022138722.7U CN213388803U (en) | 2020-09-26 | 2020-09-26 | Heat treatment device capable of achieving partitioned independent heating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022138722.7U CN213388803U (en) | 2020-09-26 | 2020-09-26 | Heat treatment device capable of achieving partitioned independent heating |
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| CN213388803U true CN213388803U (en) | 2021-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112080622A (en) * | 2020-09-26 | 2020-12-15 | 陕西科技大学 | Gradient heat treatment device and gradient heat treatment method for disc-type workpiece |
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2020
- 2020-09-26 CN CN202022138722.7U patent/CN213388803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112080622A (en) * | 2020-09-26 | 2020-12-15 | 陕西科技大学 | Gradient heat treatment device and gradient heat treatment method for disc-type workpiece |
| CN112080622B (en) * | 2020-09-26 | 2023-01-03 | 陕西科技大学 | Gradient heat treatment device and gradient heat treatment method for disc-type workpiece |
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