CN110656296A - Heat treatment device and method for improving quality of aluminum profile - Google Patents
Heat treatment device and method for improving quality of aluminum profile Download PDFInfo
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- CN110656296A CN110656296A CN201911098660.7A CN201911098660A CN110656296A CN 110656296 A CN110656296 A CN 110656296A CN 201911098660 A CN201911098660 A CN 201911098660A CN 110656296 A CN110656296 A CN 110656296A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
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Abstract
The invention discloses a heat treatment device and a heat treatment method for improving the quality of an aluminum profile, and belongs to the technical field of aluminum profile heat treatment. A heat treatment device for improving the quality of aluminum profiles comprises a first baffle, a second baffle, a cover plate and a bottom plate, wherein the cover plate is respectively connected with a heating box, an air blower and an air inlet, the bottom plate is fixedly connected between the first baffle and the second baffle, the cover plate is slidably connected in the first baffle and the second baffle, the inner wall of the first baffle is rotatably connected with a second turntable, the inner wall of the second baffle is connected with a first turntable matched with the second turntable, an aluminum profile body is connected between the first turntable and the second turntable, a water tank is further connected between the first baffle and the second baffle, and the bottom plate is connected with a spray head communicated with the water tank; the aluminum profile cooling device can fully heat aluminum profiles, the heating is more uniform, a plurality of aluminum profiles can be processed simultaneously, the temperature is automatically reduced, the cost is saved, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of aluminum profile heat treatment, in particular to a heat treatment device and a heat treatment method for improving the quality of an aluminum profile.
Background
Aluminum profiles have a series of excellent characteristics, such as good strength, good weather resistance, low density and the like, and are widely applied to buildings and industries, in the production process of the aluminum profiles, heat treatment is needed to improve the plasticity and hardness of the aluminum profiles, however, due to the defects of hard materials and poor fluidity of the aluminum profiles, if the aging heat treatment is not in place, the quality of the aluminum profiles is affected, and the existing aging heat treatment device can only treat the surfaces of the aluminum profiles and cannot carry out the time heat treatment on the aluminum profiles in an all-round manner.
Through retrieval, chinese patent with patent application number CN201720040574.0 discloses "a high-precision aluminum profile aging heat treatment device, which comprises a box body, wherein the top of the box body is fixedly connected with a heating box, the top of the inner wall of the heating box is fixedly connected with a microwave generator, the bottom of the heating box is provided with a heat storage plate, the left side of the outer wall of the heating box is fixedly communicated with an air outlet, the left side of the heating box and the inside of the heating box positioned at the air outlet are fixedly connected with a heater, and the air outlet penetrates through the outer wall of the heating box and extends to the inside of the. The aluminum profile aging heat treatment device is characterized in that an aluminum profile is placed in a mold box, a controller is opened, a microwave generator and a heater are arranged to provide a sufficient heat source for the whole device, the microwave generator can heat the aluminum profile in all directions, a motor operates to drive a knocking rod to knock a pulley so as to drive the aluminum profile in the mold box to shake, the aluminum profile can be displaced, and therefore aging heat treatment can be performed on the aluminum profile in all directions, and the quality of a product is improved.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a heat treatment device and a heat treatment method for improving the quality of an aluminum profile.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an improve heat treatment device of aluminium alloy quality, includes first baffle, second baffle, apron and bottom plate, be connected with heating cabinet, air-blower and air intake on the apron respectively, bottom plate fixed connection is between first baffle and second baffle, apron sliding connection is in first baffle and second baffle, the inner wall of first baffle rotates and is connected with the second carousel, the inner wall of second baffle be connected with second carousel matched with first carousel, be connected with the aluminium alloy body between first carousel and the second carousel, still be connected with the water tank between first baffle and the second baffle, be connected with the shower nozzle that is linked together with the water tank on the bottom plate.
Preferably, the top outer wall of first baffle and second baffle all is connected with the cylinder, the output of cylinder is connected with the push rod, the outer wall of apron is connected with the backup pad, the bottom outer wall at the backup pad is connected to the push rod, the top outer wall of first baffle and second baffle all is connected with the slide bar, on the slide bar in the backup pad sliding connection.
Preferably, the inner wall of the cover plate is connected with a temperature sensor, and the temperature sensor is connected with the cylinder through signals.
Preferably, all be connected with the support bar on first baffle, second baffle and the bottom plate, on the support bar in the cover plate connection, the outer wall of support bar still is connected with and laps matched with sealing strip.
Preferably, the outer wall of the first baffle is connected with a stepping motor, the output end of the stepping motor is connected with a speed reducer, the output end of the speed reducer is connected with an output shaft, the second turntable is fixedly connected to one end, far away from the speed reducer, of the output shaft, and the output shaft is rotatably connected with the inside of the first baffle through a bearing.
Preferably, the outer wall of the second baffle is connected with a nut seat, a threaded rod is connected with the nut seat in a threaded manner, and the first rotating disc is rotatably connected to the outer wall of the threaded rod.
Preferably, the number of the first rotating discs and the number of the second rotating discs are four, and the outer wall of each second rotating disc is fixedly connected with gear plates which are meshed with each other.
Preferably, the water tank is internally connected with a water pump, the water outlet end of the water pump is connected with a fixed block through a water outlet pipe, the fixed block is connected to the bottom of the bottom plate, a connecting pipeline communicated with the spray head and the water outlet pipe is arranged in the fixed block, the bottom plate is provided with a through hole, and the through hole is communicated with the water tank.
Preferably, the outer wall of the water tank is provided with a water inlet pipe, and the bottom of the water tank is provided with a water outlet.
A use method of a heat treatment device for improving the quality of an aluminum profile adopts the following steps:
s1, adding water or cooling liquid into the water tank through a water inlet pipe;
s2, connecting the aluminum profile body between the first turntable and the second turntable;
s3, covering the cover plate on the supporting bars through the air cylinder, and then controlling the heating box and the blower to start working;
s4, starting the stepping motor, so that the aluminum profile body rotates and is heated more uniformly;
s5, when the heating temperature reaches the set value of the temperature sensor, the temperature sensor sends a signal to make the cylinder work to drive the cover plate to rise;
s6, starting the water pump, and cooling the heated aluminum profile body through the spray head.
Compared with the prior art, the invention provides a heat treatment device and a heat treatment method for improving the quality of an aluminum profile, and the heat treatment device and the heat treatment method have the following beneficial effects:
1. the heat treatment device for improving the quality of the aluminum profile comprises a water tank, a water inlet pipe, a screw rod, a nut seat, a first rotary disc, a cylinder, a speed reducer, a second rotary disc, a screw rod, a support plate, a sealing strip, a heating box, an air blower, a stepping motor, a speed reducer and a control device, wherein the water tank is filled with water or cooling liquid through the water inlet pipe, the aluminum profile body is placed on the second rotary disc, the screw rod is rotated to be in threaded connection with the nut seat, the screw rod drives the first rotary disc to move to be matched with the second rotary disc to clamp the aluminum profile body, the cylinder is started to drive the cover plate to move downwards, the support plate is moved more stably through the slide rod, the sealing strip enables the rest support plates of the cover plate to be connected in a sealing mode to avoid hot gas emission, the heating box, the aluminum profile is prevented from falling off, the first rotary table and the second rotary table are respectively provided with a limiting rod which can be connected to a hollow part on the aluminum profile body, so that the aluminum profile body is more stably connected, the outer wall of the second rotary table is connected with a gear plate, and the four gear plates are mutually meshed, so that the four aluminum profile bodies can rotate, only one stepping motor is needed, the cost is saved, the aluminum profile body can be uniformly heated, the heat treatment effect of the aluminum profile body is enhanced, when the temperature in the cover plate reaches the temperature set by the temperature sensor, the model of the temperature sensor is DS18B20, then the temperature sensor can send out a signal, the air cylinder drives the cover plate to rise, then the aluminum profile body is cooled, then a water pump in the water tank is started, the water pump is used for conveying water flow into a near spray head through a connecting pipeline on the fixed block, so that the water flow is, thereby accomplish the heat treatment, then rivers or coolant liquid then can fall to the bottom plate on, then flow to the water tank in from the through-hole on the bottom plate to can avoid extravagant to rivers cyclic utilization, rivers accessible delivery port discharge in the water tank, and the delivery port is equipped with the control valve, can conveniently operate.
The device has the advantages that the parts which are not involved are the same as or can be realized by adopting the prior art, the aluminum profile can be fully heated, the heating is more uniform, a plurality of aluminum profiles can be simultaneously processed, the temperature is automatically reduced, the cost is saved, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a heat treatment apparatus for improving the quality of aluminum profiles according to the present invention;
FIG. 2 is a schematic structural diagram of the bottom of a heat treatment device for improving the quality of aluminum profiles according to the present invention;
FIG. 3 is a first schematic structural diagram of the interior of a heat treatment apparatus for improving the quality of aluminum profiles according to the present invention;
FIG. 4 is a second schematic structural view of the interior of a heat treatment apparatus for improving the quality of aluminum profiles according to the present invention;
FIG. 5 is a third schematic structural view of the interior of a heat treatment apparatus for improving the quality of aluminum profiles according to the present invention;
FIG. 6 is a schematic structural diagram of a cover plate of a heat treatment device for improving the quality of aluminum profiles according to the present invention;
fig. 7 is a cross-sectional view of a fixing block of a heat treatment device for improving the quality of an aluminum profile according to the present invention.
In the figure: 1. a first baffle plate; 101. a slide bar; 2. a second baffle; 201. a nut seat; 202. a threaded rod; 203. a first turntable; 3. a cover plate; 301. a heating box; 302. a blower; 303. an air inlet; 304. a support plate; 305. a temperature sensor; 4. a cylinder; 401. a push rod; 5. a base plate; 501. a through hole; 502. a spray head; 6. a water tank; 601. a water inlet pipe; 602. a water outlet; 603. a water pump; 604. a fixed block; 605. connecting a pipeline; 7. a stepping motor; 701. a speed reducer; 702. an output shaft; 703. a second turntable; 704. a gear plate; 8. a supporting strip; 801. a sealing strip.
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 embodiments 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-7, a heat treatment device for improving aluminum profile quality, which comprises a first baffle plate 1, a second baffle plate 2, a cover plate 3 and a bottom plate 5, wherein the cover plate 3 is respectively connected with a heating box 301, an air blower 302 and an air inlet 303, the bottom plate 5 is fixedly connected between the first baffle plate 1 and the second baffle plate 2, the cover plate 3 is slidably connected in the first baffle plate 1 and the second baffle plate 2, the inner wall of the first baffle plate 1 is rotatably connected with a second turntable 703, the inner wall of the second baffle plate 2 is connected with a first turntable 203 matched with the second turntable 703, an aluminum profile body is connected between the first turntable 203 and the second turntable 703, a water tank 6 is further connected between the first baffle plate 1 and the second baffle plate 2, and a spray head 502 communicated with the water tank 6 is connected on the bottom.
The top outer wall of first baffle 1 and second baffle 2 all is connected with cylinder 4, and the output of cylinder 4 is connected with push rod 401, and the outer wall of apron 3 is connected with backup pad 304, and push rod 401 is connected at the bottom outer wall of backup pad 304, and the top outer wall of first baffle 1 and second baffle 2 all is connected with slide bar 101, on slide bar 101 among the backup pad 304 sliding connection.
The inner wall of the cover plate 3 is connected with a temperature sensor 305, and the temperature sensor 305 is in signal connection with the cylinder 4.
All be connected with support bar 8 on first baffle 1, second baffle 2 and the bottom plate 5, on support bar 8 in the apron 3 is connected, the outer wall of support bar 8 still is connected with and laps 3 matched with sealing strip 801.
The outer wall of the first baffle 1 is connected with a stepping motor 7, the output end of the stepping motor 7 is connected with a speed reducer 701, the output end of the speed reducer 701 is connected with an output shaft 702, a second turntable 703 is fixedly connected to one end, far away from the speed reducer 701, of the output shaft 702, and the output shaft 702 is rotatably connected with the first baffle 1 through a bearing.
The outer wall of the second baffle 2 is connected with a nut seat 201, a threaded rod 202 is connected with the nut seat 201 in a threaded manner, and a first rotating disc 203 is rotatably connected to the outer wall of the threaded rod 202.
The number of the first rotating disk 203 and the second rotating disk 703 is four, and the outer wall of each second rotating disk 703 is fixedly connected with gear plates 704 which are meshed with each other.
The water tank 6 is internally connected with a water pump 603, the water outlet end of the water pump 603 is connected with a fixed block 604 through a water outlet pipe, the fixed block 604 is connected to the bottom of the bottom plate 5, the fixed block 604 is internally provided with a connecting pipeline 605 communicated with the spray head 502 and the water outlet pipe, the bottom plate 5 is provided with a through hole 501, and the through hole 501 is communicated with the water tank 6.
The outer wall of the water tank 6 is provided with a water inlet pipe 601, and the bottom of the water tank 6 is provided with a water outlet 602.
A use method of a heat treatment device for improving the quality of an aluminum profile adopts the following steps:
s1, adding water or cooling liquid into the water tank 6 through the water inlet pipe 601;
s2, connecting the aluminum profile body between the first rotating disc 203 and the second rotating disc 703;
s3, covering the cover plate 3 on the supporting bars 8 through the cylinder 4, and then controlling the heating box 301 and the blower 302 to start working;
s4, starting the stepping motor 7, so that the aluminum profile body rotates and is heated more uniformly;
s5, when the heating temperature reaches the set value of the temperature sensor 305, the temperature sensor 305 will send a signal to make the cylinder 4 work to drive the cover plate 3 to rise;
and S6, starting the water pump 603, and cooling the heated aluminum profile body through the spray head 502.
When the aluminum profile heating device is used, firstly, water or cooling liquid is injected into a water tank 6 through a water inlet pipe 601, then an aluminum profile body is placed on a second rotary disc 703, a threaded rod 202 is rotated to be in threaded connection with a nut seat 201, so that the threaded rod 202 drives a first rotary disc 203 to move to be matched with the second rotary disc 703 to clamp the aluminum profile body, then an air cylinder 4 is started to drive a cover plate 3 with the air cylinder to move downwards, a sliding rod 101 enables a support plate 304 to move more stably, so that the cover plate 3 moves more stably, a sealing strip 801 enables support bars 8 of the cover plate 3 to be connected in a sealing mode to avoid hot gas emission, then a heating box 301 and an air blower 302 on the top of the cover plate 3 start to work to heat the aluminum profile body, then a stepping motor 7 is started to drive an output shaft 702 to rotate through a stepping motor 701, the output shaft 702 drives the second rotary disc 703 to rotate, and the, the aluminum profile is prevented from falling off, the first rotating disc 203 and the second rotating disc 703 are respectively provided with a limiting rod which can be connected to the hollow part of the aluminum profile body, so that the connection of the aluminum profile body is more stable, the outer wall of the second rotating disc 703 is connected with a gear plate 704, and the four gear plates 704 are mutually meshed, so that the four aluminum profile bodies can be rotated, only one stepping motor 7 is needed, the cost is saved, so that the aluminum profile body can be uniformly heated, the heat treatment effect of the aluminum profile body is enhanced, when the temperature in the cover plate 3 reaches the temperature set by the temperature sensor 305, the model of the temperature sensor 305 is DS18B20, then the temperature sensor 305 sends a signal, the air cylinder 4 drives the cover plate 3 to rise, then the aluminum profile body is cooled, then the water pump 603 in the water tank 6 is started, so that the water flow is conveyed to the spray head 502 through the connecting pipeline, thereby make rivers from shower nozzle 502 blowout, cool down the aluminium alloy body to accomplish thermal treatment, then rivers or coolant liquid then can fall to on the bottom plate 5, then from the through-hole 501 on the bottom plate 5 in flowing to water tank 6, thereby can avoid extravagant to rivers cyclic utilization, rivers accessible delivery port 602 discharge in the water tank 6, and delivery port 602 is equipped with the control valve, can conveniently operate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A heat treatment device for improving the quality of aluminum profiles comprises a first baffle (1), a second baffle (2), a cover plate (3) and a bottom plate (5), wherein the cover plate (3) is respectively connected with a heating box (301), an air blower (302) and an air inlet (303), and is characterized in that the bottom plate (5) is fixedly connected between the first baffle (1) and the second baffle (2), the cover plate (3) is slidably connected in the first baffle (1) and the second baffle (2), the inner wall of the first baffle (1) is rotatably connected with a second turntable (703), the inner wall of the second baffle (2) is connected with a first turntable (203) matched with the second turntable (703), an aluminum profile body is connected between the first turntable (203) and the second turntable (703), and a water tank (6) is further connected between the first baffle (1) and the second baffle (2), the bottom plate (5) is connected with a spray head (502) communicated with the water tank (6).
2. The heat treatment device for improving the quality of the aluminum profile according to claim 1, characterized in that the outer walls of the tops of the first baffle plate (1) and the second baffle plate (2) are both connected with a cylinder (4), the output end of the cylinder (4) is connected with a push rod (401), the outer wall of the cover plate (3) is connected with a support plate (304), the push rod (401) is connected with the outer wall of the bottom of the support plate (304), the outer walls of the tops of the first baffle plate (1) and the second baffle plate (2) are both connected with a slide rod (101), and the support plate (304) is connected with the middle slide rod (101) in a sliding manner.
3. The heat treatment device for improving the quality of the aluminum profiles as claimed in claim 2, characterized in that a temperature sensor (305) is connected to the inner wall of the cover plate (3), and the temperature sensor (305) is in signal connection with the cylinder (4).
4. The heat treatment device for improving the quality of the aluminum profiles as claimed in claim 3, wherein the first baffle plate (1), the second baffle plate (2) and the bottom plate (5) are all connected with a support bar (8), the cover plate (3) is connected with the middle support bar (8), and the outer wall of the support bar (8) is further connected with a sealing strip (801) matched with the cover plate (3).
5. The heat treatment device for improving the quality of the aluminum profile according to claim 1, wherein a stepping motor (7) is connected to the outer wall of the first baffle plate (1), a speed reducer (701) is connected to the output end of the stepping motor (7), an output shaft (702) is connected to the output end of the speed reducer (701), the second rotary disc (703) is fixedly connected to one end, away from the speed reducer (701), of the output shaft (702), and the output shaft (702) is rotatably connected to the inside of the first baffle plate (1) through a bearing.
6. The heat treatment device for improving the quality of the aluminum profiles as claimed in claim 5, characterized in that a nut seat (201) is connected to the outer wall of the second baffle plate (2), a threaded rod (202) is connected to the nut seat (201) in a threaded manner, and the first rotating disc (203) is rotatably connected to the outer wall of the threaded rod (202).
7. The heat treatment device for improving the quality of the aluminum profiles as claimed in claim 6, wherein the number of the first rotating disc (203) and the second rotating disc (703) is four, and the outer wall of each second rotating disc (703) is fixedly connected with gear plates (704) which are meshed with each other.
8. The heat treatment device for improving the quality of the aluminum profile according to claim 1, wherein a water pump (603) is connected in the water tank (6), a water outlet end of the water pump (603) is connected with a fixed block (604) through a water outlet pipe, the fixed block (604) is connected to the bottom of the bottom plate (5), a connecting pipeline (605) communicated with the spray head (502) and the water outlet pipe is arranged in the fixed block (604), a through hole (501) is formed in the bottom plate (5), and the through hole (501) is communicated with the water tank (6).
9. The heat treatment device for improving the quality of the aluminum profiles as claimed in claim 8, characterized in that the outer wall of the water tank (6) is provided with a water inlet pipe (601), and the bottom of the water tank (6) is provided with a water outlet (602).
10. The use method of the heat treatment device for improving the quality of the aluminum profiles comprises the heat treatment device for improving the quality of the aluminum profiles, which is characterized by comprising the following steps:
s1, adding water or cooling liquid into the water tank (6) through the water inlet pipe (601);
s2, connecting the aluminum profile body between a first rotating disc (203) and a second rotating disc (703);
s3, covering the cover plate (3) on the supporting strips (8) through the air cylinder (4), and then controlling the heating box (301) and the blower (302) to start working;
s4, starting the stepping motor (7), so that the aluminum profile body rotates and is heated more uniformly;
s5, when the heating temperature reaches the set value of the temperature sensor (305), the temperature sensor (305) sends a signal to enable the cylinder (4) to work to drive the cover plate (3) to rise;
and S6, starting the water pump (603), and cooling the heated aluminum profile body through the spray head (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911098660.7A CN110656296A (en) | 2019-11-12 | 2019-11-12 | Heat treatment device and method for improving quality of aluminum profile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911098660.7A CN110656296A (en) | 2019-11-12 | 2019-11-12 | Heat treatment device and method for improving quality of aluminum profile |
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| CN110656296A true CN110656296A (en) | 2020-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293275A (en) * | 2021-05-29 | 2021-08-24 | 熊峰 | Powder metallurgy cutter manufacturing heat treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1017995A (en) * | 1996-07-04 | 1998-01-20 | Nkk Corp | Rail with high strength and damage resistance, having hardness distribution excellent in damage resistance in railhead vertex part |
| CN205473889U (en) * | 2016-02-01 | 2016-08-17 | 中国重型机械研究院股份公司 | Syllogic aluminium alloy quenching device |
| CN109439867A (en) * | 2019-01-05 | 2019-03-08 | 陈二东 | A kind of electricity self-heating hardening device |
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2019
- 2019-11-12 CN CN201911098660.7A patent/CN110656296A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1017995A (en) * | 1996-07-04 | 1998-01-20 | Nkk Corp | Rail with high strength and damage resistance, having hardness distribution excellent in damage resistance in railhead vertex part |
| CN205473889U (en) * | 2016-02-01 | 2016-08-17 | 中国重型机械研究院股份公司 | Syllogic aluminium alloy quenching device |
| CN109439867A (en) * | 2019-01-05 | 2019-03-08 | 陈二东 | A kind of electricity self-heating hardening device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293275A (en) * | 2021-05-29 | 2021-08-24 | 熊峰 | Powder metallurgy cutter manufacturing heat treatment method |
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