CN212404173U - Heat treatment device for aluminum alloy castings - Google Patents

Abstract

The utility model provides an aluminum alloy casting heat treatment device, which relates to the technical field of casting heat treatment and comprises a frame, a solid solution furnace, two furnace doors, two telescopic driving pieces, a water tank and an aging furnace, wherein the solid solution furnace is arranged at the top of the frame; the two furnace doors are connected to the frame in a sliding manner along the horizontal direction; the two telescopic driving pieces are respectively arranged on the rack and are used for driving the furnace door to horizontally open outwards; the water tank is arranged below the solid solution furnace, and a track is arranged below the solid solution furnace. The utility model provides an aluminum alloy casting heat treatment device sets up two furnace gates of opening to both sides respectively in the below of dissolving the stove admittedly to utilize flexible driving piece to drive two furnace gates respectively, the effectual speed that opens that improves the furnace gate, make the faster entering basin of foundry goods quench, shortened the quenching transfer time, the mechanical properties of foundry goods has been improved, ageing furnace can in time carry out ageing treatment to the foundry goods, the integrality of thermal treatment has been guaranteed, the comprehensive properties of foundry goods has been improved.

Description

Heat treatment device for aluminum alloy castings

Technical Field

The utility model belongs to the technical field of the foundry goods heat treatment, more specifically say, relate to an aluminum alloy casting heat treatment device.

Background

The aluminum alloy heat treatment process is an important means for improving the performance of the aluminum alloy, can effectively improve the mechanical property and the corrosion resistance of an aluminum alloy member, and achieves the effects of stabilizing the size, improving the cutting processing performance, optimizing the welding performance and the like. This is because the mechanical properties of many as-cast aluminum alloys generally cannot directly meet the use requirements, and the mechanical properties and other use properties of castings are further improved by heat treatment of the rest of cast aluminum alloys except for the AL-Si system ZL102, the AL-Mg system ZL302 and the ZL-Zn system ZL401 alloys, and the specific effects of the heat treatment are shown in the following aspects:

1. internal stress caused by uneven cooling speed of the casting during crystallization and solidification due to uneven wall thickness of the casting, large thickness of a switching part and the like is eliminated;

2. the mechanical strength and hardness of the alloy are improved, the metallographic structure is improved, and the alloy has certain shaping, cutting and processing performances and welding performances;

3. the structure and the size of the casting are stabilized, and the volume change caused by high-temperature phase change is prevented and eliminated;

4. eliminate intergranular and compositional segregation and homogenize the structure.

The heat treatment method generally comprises solution treatment and aging treatment, the solution treatment is also called quenching, the quenching is to heat the aluminum alloy casting to a higher temperature which is generally close to the melting point of eutectic and is more than 500 ℃, and then the temperature is kept for more than 2 hours to fully dissolve the fusible phase in the alloy. Then quickly quenching in water at 60-100 deg.C to make the strengthening component be dissolved in the alloy to maximum extent and fixed and stored at room temperature. This process is called quenching, also called solution treatment or cold treatment.

Aging treatment, also called low-temperature tempering, is a process of heating the quenched aluminum alloy casting to a certain temperature, keeping the temperature for a certain time, discharging the casting out of a furnace, and air-cooling the casting to room temperature to decompose supersaturated solid solution and stabilize the structure of an alloy matrix.

In the heat treatment process, the rapid quenching in water has great effect on the improvement of product performance in the quenching process, and the existing heat treatment equipment, no matter a vertical heat treatment furnace or a through type continuous heat treatment furnace, has the problem that the product performance is influenced because the opening speed of a furnace door is too slow in the quenching process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an aluminum alloy casting heat treatment device to solve the technical problem that the quenching performance of aluminum alloy casting is influenced by slow opening of the furnace door in the quenching process existing in the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: the heat treatment device for the aluminum alloy castings comprises a rack, a solid solution furnace, two furnace doors, two telescopic driving pieces, a water tank and an aging furnace, wherein the solid solution furnace is arranged at the top of the rack; the two furnace doors are connected to the frame in a sliding manner along the horizontal direction and used for plugging or opening a lower opening of the solid solution furnace, and the two furnace doors are symmetrically arranged below the solid solution furnace; the two telescopic driving pieces are respectively arranged on the rack and positioned on the outer side of the furnace door, and the output ends of the telescopic driving pieces are connected with the furnace door and used for driving the furnace door to horizontally open outwards; the water tank is arranged below the solid solution furnace, and a track which is perpendicular to the moving direction of the furnace door is arranged below the water tank; and the aging furnace is arranged at one end of the track, which is far away from the solid solution furnace.

As another embodiment of the application, the bottom surface of the furnace door is also provided with a connecting piece which is perpendicular to the moving direction of the furnace door, and the output end of the telescopic driving piece is fixedly connected with the outer side surface of the connecting piece.

As another embodiment of the present application, the connection member includes a connection bar and a support frame; the connecting strip is arranged on the bottom surface of the furnace door perpendicular to the moving direction of the furnace door, and the side surface of the connecting strip is used for being connected with the output end of the telescopic driving piece; the support frame sets up on the bottom surface of furnace gate, and links to each other with the connecting strip, is equipped with the hole of stepping down that is used for holding flexible driving piece on the support frame, and the opening in hole of stepping down is towards the outside.

As another embodiment of the application, the connecting strips are arranged close to the adjacent parts of the two furnace doors, and the supporting frame is positioned between the connecting pieces and the telescopic driving pieces.

As another embodiment of the application, the rack is further provided with two sliding rails which are arranged in parallel to the moving direction of the furnace door, and the bottom surface of the furnace door is provided with a plurality of rollers which are respectively used for being in rolling fit with the two sliding rails.

As another embodiment of this application, still be equipped with the bearing reinforcement that extends along the moving direction of perpendicular to furnace gate on the furnace gate is close to one side terminal surface of flexible driving piece, the both ends of bearing reinforcement are equipped with respectively and are used for rolling complex bearing gyro wheel with the slide rail.

As another embodiment of this application, the middle part of bearing reinforcement is equipped with the lift portion that upwards extends, and the below of lift portion forms and the space of stepping down that communicates with the hole of stepping down.

As another embodiment of the application, the top of the furnace door is also provided with an auxiliary wheel which is used for being matched with the bottom surface of the solid solution furnace in a rolling way, and the main shaft of the auxiliary wheel is vertical to the moving direction of the furnace door.

As another embodiment of the application, a lifting assembly for lifting the casting and a conveying assembly for supporting and horizontally conveying the casting into the solution furnace are further arranged between the solution furnace and the aging furnace.

As another embodiment of the application, a plurality of solid solution furnaces are arranged in sequence in the moving direction perpendicular to the furnace door.

The utility model provides an aluminum alloy casting heat treatment device's beneficial effect lies in: compared with the prior art, the utility model provides an aluminum alloy foundry goods heat treatment device sets up two furnace gates of opening to both sides respectively in the below of dissolving the stove admittedly to utilize flexible driving piece to drive two furnace gates respectively, the effectual speed of opening of improvement the furnace gate, and then quench in making the faster entering basin of foundry goods, the quenching transfer time has been shortened, the mechanical properties of the improvement foundry goods of having effective, the ageing furnace can in time carry out ageing treatment to the foundry goods after the quenching is accomplished, the integrality of thermal treatment has been guaranteed, the comprehensive properties of foundry goods has been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced 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 inventive labor.

FIG. 1 is a schematic structural diagram of a first embodiment of an apparatus for heat-treating aluminum alloy castings according to an embodiment of the present invention;

FIG. 2 is an enlarged partial view of the support stiffener, oven door and track of FIG. 1;

FIG. 3 is a schematic view of a partially enlarged structure of the oven door, the rollers and the rails of FIG. 1 II;

FIG. 4 is a partially enlarged view of III in FIG. 1;

FIG. 5 is a schematic top view of the oven door of FIG. 1;

FIG. 6 is a schematic bottom view of the oven door, the retractable driving member, the connecting member, and the support reinforcement of FIG. 1;

fig. 7 is a schematic structural diagram of a second aluminum alloy casting heat treatment device provided by an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100. a frame; 200. a solid solution furnace; 300. a furnace door; 310. a connecting member; 311. a connecting strip; 312. a support frame; 313. a hole of abdication; 320. a slide rail; 330. a roller; 340. an auxiliary wheel; 400. a telescopic driving member; 500. a water tank; 510. a track; 600. aging furnace; 700. supporting a reinforcing member; 710. a lifting part; 720. supporting the roller; 810. a hoisting assembly; 820. a delivery assembly.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 7 together, a heat treatment apparatus for aluminum alloy castings according to the present invention will now be described. The aluminum alloy casting heat treatment device comprises a rack 100, a solution furnace 200, two furnace doors 300, two telescopic driving pieces 400, a water tank 500 and an aging furnace 600, wherein the solution furnace 200 is arranged at the top of the rack 100; the two furnace doors 300 are connected on the frame 100 in a sliding way along the horizontal direction and used for plugging or opening the lower opening of the solid solution furnace 200, and the two furnace doors 300 are symmetrically arranged below the solid solution furnace 200; the two telescopic driving pieces 400 are respectively arranged on the rack 100 and positioned at the outer side of the oven door 300, and the output ends of the telescopic driving pieces 400 are connected with the oven door 300 and used for driving the oven door 300 to horizontally open outwards; the water tank 500 is arranged below the solid solution furnace 200, and a track 510 which is perpendicular to the moving direction of the furnace door 300 is arranged below the water tank 500; the aging furnace 600 is arranged at one end of the track 510 far away from the solution furnace 200.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The utility model provides a pair of aluminum alloy casting heat treatment device, compared with the prior art, the utility model provides an aluminum alloy casting heat treatment device sets up two furnace gates 300 of opening to both sides respectively in the below of solid solution furnace 200, and utilize flexible driving piece 400 to drive two furnace gates 300 respectively, the effectual speed of opening of furnace gate 300 that has improved, and then quench in making the faster entering basin 500 of foundry goods, the quenching transfer time has been shortened, the effective mechanical properties who improves the foundry goods, ageing furnace 600 can in time carry out ageing treatment to the foundry goods after the quenching is accomplished, the integrality of thermal treatment has been guaranteed, the comprehensive properties of foundry goods has been improved.

In this embodiment, the telescopic driving member 400 may be a hydraulic cylinder or a lead screw, which can realize a horizontal driving function, and the telescopic direction of the telescopic driving member 400 is consistent with the opening or closing direction of the oven door 300, so as to realize a driving effect on the oven door 300 through an output end. The output end of the telescopic driving member 400 may be connected to the outer end surface of the oven door 300, or the telescopic driving member 400 may be set to be lower than the oven door 300, and the telescopic driving member 400 is connected to other components protruding downwards from the bottom of the oven door 300 to drive the oven door 300. The telescopic driving member 400 is set to be lower than the height of the furnace door 300, the telescopic driving member 400 can be drawn close to one side of the solid solution furnace 200 as far as possible, the problem that the external space occupies too large space is avoided, the telescopic driving member 400 adopts lower height, the position interference between the furnace door 300 and the telescopic driving member 400 when the furnace door is opened towards the outside can be avoided, and the practicability of operation is ensured.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 6, a connecting member 310 perpendicular to the moving direction of the oven door 300 is further disposed on the bottom surface of the oven door 300, and the output end of the retractable driving member 400 is fixedly connected to the outer side surface of the connecting member 310.

In this embodiment, the connecting member 310 is disposed at the bottom of the oven door 300 to effectively connect the oven door 300 and the retractable driving member 400, so as to drive the oven door 300 by the retractable driving member 400. The connecting piece 310 is located on the bottom surface of the oven door 300 and extends downwards for a certain height, and the side surfaces of the telescopic driving piece 400 and the connecting piece 310, which are far away from the adjacent bottom parts of the two oven doors 300, are connected, so that the space occupation caused by the overlarge outward extension size of the telescopic driving piece 400 is effectively avoided.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 6, the connecting member 310 includes a connecting bar 311 and a supporting frame 312; the connecting bar 311 is arranged on the bottom surface of the oven door 300 perpendicular to the moving direction of the oven door 300, and the side surface is used for being connected with the output end of the telescopic driving piece 400; the supporting frame 312 is disposed on the bottom surface of the oven door 300 and connected to the connecting bar 311, the supporting frame 312 is provided with a yielding hole 313 for accommodating the telescopic driving member 400, and an opening of the yielding hole 313 faces outward. In this embodiment, while the connection between the connecting bar 311 and the retractable driving member 400 is ensured, the support frame 312 disposed at the bottom of the oven door 300 is used to effectively support the panel of the oven door 300, so as to prevent the oven door 300 from deforming during use. Braced frame 312 can adopt channel-section steel or rectangular pipe to connect and constitute, has set up the hole of stepping down 313 that is used for supplying flexible driving piece 400 to pass on braced frame 312, avoids influencing the flexible action of flexible driving piece 400.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 6, the connecting bar 311 is disposed near the adjacent portions of the two oven doors 300, and the supporting frame 312 is disposed between the connecting member 310 and the retractable driving member 400. In this embodiment, the connecting bar 311 is disposed at the bottom of the oven door 300, protrudes downward and is disposed perpendicular to the direction of the oven door 300, the top surface of the connecting bar 311 is fixedly connected to the bottom surface of the oven door 300, so as to reliably support the oven door 300, the telescopic driving member 400 is connected to the side surface of the connecting bar 311 away from the adjacent portions of the two oven doors 300, and the telescopic driving member 400 drives the oven door 300 by driving the connecting bar 311.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, fig. 2, fig. 3 and fig. 6, the rack 100 is further provided with two slide rails 320 parallel to the moving direction of the oven door 300, the two slide rails 320 are parallel to each other, and the bottom surface of the oven door 300 is provided with a plurality of rollers 330 respectively for rolling-matching with the two slide rails 320. In this embodiment, in order to reduce the friction between the oven door 300 and the rack 100 during the translation process, the rack 100 is provided with the slide rail 320, the bottom surface of the oven door 300 is provided with the roller 330 for rolling and matching with the slide rail 320, and a plurality of rollers 330 are provided for supporting a plurality of positions of the oven door 300, so as to ensure the relative stability of the high and low positions during the translation process of the oven door 300.

Further, the two sliding rails 320 are parallel to the extending direction of the extending driving member 400, and a certain distance is provided between the two sliding rails 320, so that the oven door 300 is effectively supported. In this embodiment, the sliding rails 320 are close to the edge of the oven door 300, and the two sliding rails 320 are respectively provided with the same number of rollers 330, so as to avoid the problem that the oven door 300 is inclined due to uneven support.

As an embodiment of the present invention, please refer to fig. 1 to 7, a supporting reinforcement 700 extending along a direction perpendicular to the moving direction of the oven door 300 is further disposed on a side end surface of the oven door 300 close to the retractable driving member 400, and two ends of the supporting reinforcement 700 are respectively disposed with a supporting roller 720 for rolling-fitting with the sliding rail 320. The reliable cooperation between the position of furnace door 300 near flexible driving piece 400 one side and slide rail 320 can be improved in the setting of bearing reinforcement 700, through set up bearing gyro wheel 720 at the both ends of bearing reinforcement 700, realizes the bearing of slide rail 320 to the corresponding position of furnace door 300, guarantees reliable drive effect.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 5 and fig. 7, a lifting portion 710 extending upward is disposed at the middle of the supporting reinforcement 700, and a yielding space communicated with the yielding hole 313 is formed below the lifting portion 710. The lifting part 710 on the bearing reinforcing member 700 provides a space for the flexible driving member 400 to yield, and the space for yielding and the hole 313 for yielding are arranged to reserve a space for the flexible driving member 400, so that the problem of unsmooth operation caused by position interference between the flexible driving member 400 and the oven door 300 in the driving process is avoided.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 5, the top of the furnace door 300 is further provided with an auxiliary wheel 340 for rolling and matching with the bottom surface of the solution furnace 200, and a main shaft of the auxiliary wheel 340 is perpendicular to the moving direction of the furnace door 300. The auxiliary wheel 340 improves the smoothness of the relative motion between the top surface of the oven door 300 and the oven body, is convenient for reducing resistance, and improves the smoothness of the movement of the oven door 300. The auxiliary wheels 340 may be in one-to-one correspondence with the rollers 330, or may be staggered.

In the embodiment, the two furnace doors 300 are respectively opened towards two sides horizontally, the opening time of the furnace doors 300 is averagely 6 seconds, the quenching transfer time is 8 seconds, and compared with the traditional structure, the method can save 3 seconds, so that the castings can enter the water tank 500 more quickly, and the mechanical property of the castings is convenient to improve.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 7, a lifting assembly 810 for lifting the casting and a conveying assembly 820 for supporting and horizontally conveying the casting to the solution furnace 200 are further disposed between the solution furnace 200 and the aging furnace 600. The hoisting assembly 810 is used for rapidly lifting the castings in the water tank 500, transferring the castings to the conveying assembly 820, and conveying the castings to the aging furnace 600 through the conveying assembly 820, so that the aging treatment process is realized. In this embodiment, the aging furnace 600 is a pass-through aging furnace, and the conveying assembly 820 can be used to effectively convey the castings in the aging furnace 600, so as to ensure the rapid and orderly aging treatment.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 7, a plurality of solution melting furnaces 200 are provided, and a plurality of solution melting furnaces 200 are sequentially arranged in a moving direction perpendicular to the furnace door 300. In this embodiment, the solution melting furnaces 200 are arranged in parallel, so that simultaneous solution of the same kind of products or different kinds of products in large batches can be realized, the lower water tank 500 moves on the rail 510 to effectively receive castings in different solution melting furnaces 200, the solution melting efficiency is improved conveniently, and good economic benefits are achieved.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Aluminum alloy casting heat treatment device, its characterized in that includes:

a machine frame, a plurality of guide rails and a plurality of guide rails,

the solid solution furnace is arranged at the top of the frame;

the two furnace doors are connected to the rack in a sliding manner along the horizontal direction and used for plugging or opening a lower opening of the solid solution furnace, and the two furnace doors are symmetrically arranged below the solid solution furnace;

the two telescopic driving pieces are respectively arranged on the rack and positioned on the outer side of the furnace door, and the output ends of the telescopic driving pieces are connected with the furnace door and used for driving the furnace door to be opened horizontally and outwards;

the water tank is arranged below the solid solution furnace, and a track which is perpendicular to the moving direction of the furnace door is arranged below the water tank; and

and the aging furnace is arranged at one end of the track, which is far away from the solid solution furnace.

2. The aluminum alloy casting heat treatment device according to claim 1, wherein the bottom surface of the furnace door is further provided with a connecting piece arranged perpendicular to the moving direction of the furnace door, and the output end of the telescopic driving piece is fixedly connected with the outer side surface of the connecting piece.

3. The aluminum alloy casting heat treatment apparatus of claim 2, wherein the connection member comprises:

the connecting strip is perpendicular to the moving direction of the furnace door and arranged on the bottom surface of the furnace door, and the side surface of the connecting strip is used for being connected with the output end of the telescopic driving piece; and

the support frame set up in on the bottom surface of furnace gate, and with the connecting strip links to each other, be equipped with on the support frame and be used for holding flexible driving piece's the hole of stepping down, the opening in hole of stepping down is towards the outside.

4. The aluminum alloy casting heat treatment apparatus of claim 3, wherein the connecting bar is disposed adjacent two adjacent furnace doors and the support frame is positioned between the connecting member and the telescopic drive.

5. The aluminum alloy casting heat treatment device according to claim 3, wherein the rack is further provided with two parallel slide rails arranged parallel to the moving direction of the furnace door, and the bottom surface of the furnace door is provided with a plurality of rollers respectively matched with the two slide rails in a rolling manner.

6. The aluminum alloy casting heat treatment apparatus according to claim 5, wherein a support reinforcement extending in a direction perpendicular to a moving direction of the furnace door is further provided on an end surface of the furnace door on a side close to the telescopic driving member, and support rollers for rolling engagement with the slide rails are provided at both ends of the support reinforcement, respectively.

7. The aluminum alloy casting heat treatment apparatus according to claim 6, wherein a raised portion extending upward is provided in a middle portion of the supporting reinforcement, and an abdicating space communicating with the abdicating hole is formed below the raised portion.

8. The aluminum alloy casting heat treatment apparatus of claim 1, wherein the top of the furnace door is further provided with auxiliary wheels for rolling engagement with the bottom surface of the solution furnace, the main axes of the auxiliary wheels being perpendicular to the direction of movement of the furnace door.

9. The aluminum alloy casting heat treatment apparatus of claim 1, further comprising a lifting assembly between the solution furnace and the aging furnace for lifting the casting and a transport assembly for holding and horizontally transporting the casting into the solution furnace.

10. The aluminum alloy casting heat treatment apparatus of claim 1, wherein there are a plurality of the solution furnaces, and a plurality of the solution furnaces are arranged in series in a direction perpendicular to a moving direction of the furnace doors.

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