A vacuum sintering furnace for heat treatment of alloy smelting

Abstract

This utility model discloses a vacuum sintering furnace for alloy smelting heat treatment, specifically relating to the field of vacuum sintering furnace technology. It includes a sintering furnace body and a sealing cover installed at the front end of the sintering furnace body. The sintering furnace body is internally equipped with cooling components and a heating frame distributed front to back. The cooling components include an annular plate, with multiple air outlet pipes arranged in a circular array embedded in the inner wall of the annular plate. A partition is located behind the annular plate, with an opening at the front end of the partition and two door panels at the front end of the partition. This utility model, by adding cooling components inside the sintering furnace body and using the air outlet pipes to spray cold air, not only achieves efficient cooling of the alloy material but also simultaneously reduces the overall temperature inside the furnace, effectively preventing accidental injury caused by hot air bursting out when the cover is opened. Furthermore, the partition and door panels work together to provide insulation, thereby reducing heat loss during heating and improving energy efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vacuum sintering furnace technology, and more specifically to a vacuum sintering furnace for alloy smelting heat treatment. Background Technology

[0002] Vacuum sintering furnaces are commonly used equipment in the heat treatment process of alloy smelting. The vacuum environment prevents the oxidation of metallic materials such as tungsten, molybdenum, and titanium at high temperatures, maintaining material purity. It also removes gaseous impurities from the furnace chamber, preventing them from reacting with the material or affecting its purity. Simultaneously, the vacuum environment minimizes atmospheric interference and heat conduction resistance, facilitating sintering at higher temperatures and achieving better material density and mechanical properties. Heating the material below its melting point causes the particles to fuse together through diffusion and bonding processes. During the heating stage, the material's temperature rises. In the initial sintering stage, "sintering bridges" appear between particles. In the middle sintering stage, diffusion and bonding between particles increase. In the later sintering stage, the particle bonding force is strong, the material becomes denser, and grains grow, achieving the final properties.

[0003] For example, in an alloy smelting sintering furnace with prior art publication number CN219415673U, there are multiple support blocks inside the shell to support the inner cylinder body, making the inner cylinder rotation structure more stable and extending the service life of the device.

[0004] However, the existing technology described above still has the following problems in use: most traditional alloy smelting vacuum sintering furnaces do not have a cooling structure, and the material needs to be air-cooled to room temperature after sintering before it can be unloaded, which takes a long time and seriously affects the efficiency of alloy smelting. Based on this, this utility model provides a vacuum sintering furnace for alloy smelting heat treatment with high smelting efficiency. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a vacuum sintering furnace for alloy smelting heat treatment. By adding a cooling component inside the main body of the sintering furnace and spraying cold air through the air outlet pipe, not only can the alloy material be cooled efficiently, but the overall temperature inside the furnace can also be reduced simultaneously. This effectively avoids accidental injuries caused by hot air bursting out when the lid is opened. At the same time, the partition can cooperate with the door panel to play a heat insulation role, thereby reducing heat loss during the heating process and improving energy utilization efficiency, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum sintering furnace for alloy smelting heat treatment, comprising a sintering furnace body and a sealing cover installed at the front end of the sintering furnace body. The sintering furnace body is fixedly provided with a cooling assembly and a heating frame distributed front and rear. The cooling assembly includes a ring plate. Multiple air outlet pipes arranged in a ring array are fixedly embedded in the inner wall of the ring plate. A partition is provided behind the ring plate. An opening is provided at the front end of the partition. Two door panels are provided at the front end of the partition. The two door panels are connected to the partition through a rotating assembly.

[0007] In a preferred embodiment, the rotating assembly includes rotating rods, the door panel is sleeved on the rotating rods, and support plates are sleeved on the top and bottom ends of the two rotating rods, the support plates being fixed to the partition.

[0008] In a preferred embodiment, mounting slots are provided on both sides of the front end of the partition, and motors are fixedly installed inside the two mounting slots. The top ends of the output shafts of the two motors are respectively fixed to the bottom ends of the two rotating rods. The door panel is automatically opened and closed by means of the motors, thereby realizing automation and improving production efficiency.

[0009] In a preferred embodiment, sliders are fixedly provided on both sides of the ring plate, and grooves adapted to the sliders are opened on both sides of the front end of the sintering furnace body. The sliders are located inside the grooves, and the ring plate is quickly installed by using the sliders and grooves to cooperate.

[0010] In a preferred embodiment, a plurality of connecting plates arranged in a ring array are fixedly provided at the front end of the partition plate. The outer wall of the ring plate is provided with a connecting groove adapted to the connecting plate. The front end of the connecting plate passes through the connecting groove and extends to the front end of the sintering furnace body. The connection plate and the connecting groove cooperate to facilitate the installation of the partition plate. At the same time, the partition plate can be removed after the ring plate is removed.

[0011] In a preferred embodiment, a base is fixedly provided at the bottom of the sintering furnace body, and multiple equally spaced support legs are fixedly provided on both sides of the top of the base. The top of each support leg is fixed to the bottom of the sintering furnace body to improve the stability of the sintering furnace body.

[0012] In a preferred embodiment, a fan is fixedly installed on the top of the base. The fan is located behind the sintering furnace body. The air outlet of the fan is connected to multiple air outlet pipes through an air supply pipe. The fan is used to transport cold air, thereby improving the cooling efficiency.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This invention adds a cooling component inside the sintering furnace body. By spraying cold air through the air outlet pipe on the inner wall of the ring plate, it can not only achieve efficient cooling of the alloy material, but also reduce the overall temperature inside the furnace at the same time. This effectively avoids accidental injury caused by the burst of hot air when the lid is opened. At the same time, a partition is set between the ring plate and the heating frame. This partition can cooperate with the door plate to play a heat insulation role, thereby reducing heat loss during the heating process and improving energy utilization efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the sintering furnace body of this utility model;

[0017] Figure 3 This is a schematic diagram of the partition of this utility model;

[0018] Figure 4 This is a schematic diagram of the rotating component structure of this utility model;

[0019] Figure 5 This is a top view of the overall structure of this utility model.

[0020] The attached figures are labeled as follows: 1. Sintering furnace body; 2. Sealing cover; 3. Cooling assembly; 4. Heating frame; 5. Rotating assembly; 6. Sliding block; 7. Slide groove; 8. Connecting plate; 9. Connecting groove; 10. Base; 11. Support leg; 12. Fan; 13. Gas supply pipe;

[0021] 31. Circular plate; 32. Air outlet duct; 33. Partition; 34. Opening; 35. Door panel;

[0022] 51. Rotating rod; 52. Support plate; 53. Mounting slot; 54. Motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Refer to the instruction manual appendix Figures 1-5This utility model provides a vacuum sintering furnace for alloy smelting heat treatment, including a sintering furnace body 1 and a sealing cover 2 installed at the front end of the sintering furnace body 1. The sintering furnace body 1 is fixedly provided with a cooling component 3 and a heating frame 4 distributed front and rear. Several heating rods or other heating structures are provided on the inner wall of the heating frame 4 for heating alloy materials. The cooling component 3 includes a ring plate 31. Multiple air outlet pipes 32 distributed in a ring array are fixedly embedded on the inner wall of the ring plate 31.

[0025] The sintering furnace body 1 is fixedly provided with a base 10 at the bottom. Multiple support legs 11 are fixedly provided on both sides of the top of the base 10. The top of each support leg 11 is fixed to the bottom of the sintering furnace body 1. A fan 12 is fixedly provided on the top of the base 10. The fan 12 is located behind the sintering furnace body 1. The air outlet of the fan 12 is connected to multiple air outlet pipes 32 through an air supply pipe 13.

[0026] The aforementioned fan 12 is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It uses pulsating flow to generate airflow and achieve the purpose of gas transportation. Its main working component, the rotor, is driven by a motor or other drive method to generate airflow and transport gas. It can be connected to a compressor for transporting cold air.

[0027] A partition 33 is provided behind the ring plate 31. An opening 34 is provided at the front end of the partition 33. Two door panels 35 are provided at the front end of the partition 33. Both the partition 33 and the door panels 35 can be made of heat-insulating material to block heat. The two door panels 35 are connected to the partition 33 through a rotating assembly 5. Specifically, the rotating assembly 5 includes a rotating rod 51. The door panels 35 are sleeved on the rotating rod 51. Support plates 52 are sleeved on the top and bottom ends of the two rotating rods 51. The support plates 52 are fixed to the partition 33. Mounting grooves 53 are provided on both sides of the front end of the partition 33. Motors 54 are fixed inside the two mounting grooves 53. The top ends of the output shafts of the two motors 54 are respectively fixed to the bottom ends of the two rotating rods 51.

[0028] Furthermore, multiple limit switches can be installed at the front end of the partition 33. When the door panel 35 is closed or opened, it contacts the limit switch, and the motor 54 stops automatically, thereby maintaining the fit between the door panel 35 and the partition 33. Since this is a well-known existing technology, it will not be elaborated further here.

[0029] In actual use, first open the sealing cover 2 at the front end of the sintering furnace body 1, then use the telescopic arm of the feeding tool to feed the alloy material into the heating frame 4, and then close the sealing cover 2 and the two door panels 35. The heating frame 4 can then be used for heating. After heating is completed, use the motor 54 to drive the rotating rod 51 to rotate, and use the rotating rod 51 to drive the door panel 35 to rotate and open. Then use the fan 12 to blow air into the multiple air outlet pipes 32 to cool down, so as to prevent hot air from escaping directly and causing danger when feeding the material. After waiting for a period of time, open the sealing cover 2 again, and use the feeding tool to take out the heated alloy material from the sintering furnace body 1. The multiple air outlet pipes 32 continue to blow air to achieve the effect of cooling down.

[0030] Refer to the instruction manual appendix Figure 2 The ring plate 31 is fixedly provided with sliders 6 on both sides, and the front side of the sintering furnace body 1 is provided with grooves 7 that are adapted to the sliders 6. The sliders 6 are located inside the grooves 7. The ring plate 31 is easily installed by using the sliders 6 and the grooves 7 to cooperate.

[0031] like Figure 2 As shown, the front end of the partition plate 33 is fixedly provided with a plurality of connecting plates 8 arranged in a ring array. The outer wall of the ring plate 31 is provided with a connecting groove 9 that is adapted to the connecting plate 8. The front end of the connecting plate 8 passes through the connecting groove 9 and extends to the front end of the sintering furnace body 1. The plurality of connecting grooves 9 and the plurality of sliders 6 are staggered to ensure the limiting function and that the two do not interfere with each other. The partition plate 33 is easy to install by using the connection plate 8 and the connecting groove 9. At the same time, the partition plate 33 can be removed after the ring plate 31 is removed.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum sintering furnace for alloy smelting heat treatment, comprising a sintering furnace body (1) and a sealing cover (2) installed at the front end of the sintering furnace body (1), characterized in that: The sintering furnace body (1) is fixedly provided with a cooling component (3) and a heating frame (4) distributed in front and behind. The cooling component (3) includes a ring plate (31). Multiple air outlet pipes (32) arranged in a ring array are fixedly embedded in the inner wall of the ring plate (31). A partition plate (33) is provided behind the ring plate (31). The partition (33) has an opening (34) at its front end, and two door panels (35) are provided at the front end of the partition (33). The two door panels (35) are connected to the partition (33) by a rotating assembly (5).

2. The vacuum sintering furnace for alloy smelting and heat treatment according to claim 1, characterized in that: The rotating assembly (5) includes a rotating rod (51), the door panel (35) is sleeved on the rotating rod (51), and the top and bottom ends of the two rotating rods (51) are both sleeved with support plates (52), and the support plates (52) are fixed to the partition (33).

3. The vacuum sintering furnace for alloy smelting and heat treatment according to claim 2, characterized in that: The partition (33) has mounting slots (53) on both sides of its front end. Motors (54) are fixed inside the two mounting slots (53). The top of the output shafts of the two motors (54) are fixed to the bottom of the two rotating rods (51) respectively.

4. The vacuum sintering furnace for alloy smelting and heat treatment according to claim 1, characterized in that: The ring plate (31) is fixed with sliders (6) on both sides. The front side of the sintering furnace body (1) is provided with grooves (7) that are compatible with the sliders (6). The sliders (6) are located inside the grooves (7).

5. The vacuum sintering furnace for alloy smelting and heat treatment according to claim 1, characterized in that: The front end of the partition (33) is fixed with a plurality of connecting plates (8) arranged in a ring array. The outer wall of the ring plate (31) is provided with a connecting groove (9) that is compatible with the connecting plate (8). The front end of the connecting plate (8) passes through the connecting groove (9) and extends to the front end of the sintering furnace body (1).

6. A vacuum sintering furnace for alloy smelting heat treatment according to claim 1, characterized in that: The sintering furnace body (1) is fixedly provided with a base (10) at the bottom. Multiple equally spaced support legs (11) are fixedly provided on both sides of the top of the base (10). The top of each support leg (11) is fixed to the bottom of the sintering furnace body (1).

7. A vacuum sintering furnace for alloy smelting heat treatment according to claim 6, characterized in that: A fan (12) is fixedly installed on the top of the base (10). The fan (12) is located behind the sintering furnace body (1). The air outlet of the fan (12) is connected to multiple air outlet pipes (32) through the gas transmission pipe (13).

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