Small vacuum annealing tank

Abstract

The utility model discloses a small-sized vacuum annealing tank, which is characterized in that a door is quickly opened through a hinge, a sample is placed on a sample carrying table, a sample carrying table shield is used for protecting the sample, a temperature control heating platform is used for controlling the required temperature, and an ionization gauge and a molecular pump are used for controlling the vacuum degree in a system, so that the vacuum degree reaches the required precision. And the state of the sample can be observed through the window. According to the utility model, by adopting a medium vacuum technology, the equipment can meet the experiment requirements, and meanwhile, the cost caused by the original high vacuum environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum annealing tanks, in particular to a small vacuum annealing tank. Background Art

[0002] Vacuum annealing (bright annealing) is a heat treatment process performed in a vacuum environment. It heats metal parts to remove impurities and internal stresses, improving their ductility and toughness. Vacuum annealing prevents oxidation and other chemical reactions that could degrade the surface or properties of the material, resulting in a bright, clean surface free of scaling and other surface defects. This process is widely used to treat high-precision parts made from high-speed steel, die steel, stainless steel, alloy steel, and titanium alloys.

[0003] The existing technology on the market is the vacuum annealing furnace, which typically consists of a furnace body, a vacuum system, a loading and unloading system and rack, a workpiece rapid cooling system, a heating system, and an electronic control system. The key to the working principle of a vacuum annealing furnace is to create an oxygen-free, pollution-free heating environment, and to improve the microstructure and macroscopic properties of the material through precise control of the heating and cooling processes. Although the vacuum annealing process has many advantages, its high cost, long operation time, high maintenance and operating costs, uneven heating, low heating efficiency, and high energy consumption have limited its application in a wider range of fields. Utility Model Content

[0004] The purpose of the utility model is to provide a small vacuum annealing tank, which can realize medium vacuum annealing at low cost; the temperature control platform heats up quickly, and is suitable for the vacuum annealing process development of a small amount of products.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A small vacuum annealing tank, comprising a temperature-controlled heating platform, a support plate, and an aluminum cavity; the temperature-controlled heating platform and the aluminum cavity are separated by the support plate; an aluminum cavity quick-opening door is provided above the aluminum cavity; the aluminum cavity quick-opening door is provided with an internal thread tightening handwheel, a swing block, and a swing bolt;

[0007] The first side of the aluminum cavity is provided with an air release valve, a tee pipe, a clamp and an angle valve in sequence, the second side and the fourth side of the aluminum cavity are provided with a KF flange adapter sleeve, and the second side, the third side and the fourth side of the aluminum cavity are provided with a KF flange pressure plate, and the KF flange pressure plate is used to connect the various parts on the side, and is connected by bolt fastening.

[0008] The aluminum cavity is in a rectangular parallelepiped shape, the first side surface and the third side surface of the aluminum cavity are opposite to each other, and the second side surface and the fourth side surface of the aluminum cavity are opposite to each other.

[0009] Preferably, the temperature-controlled heating platform and the support plate are connected by bolt fastening, and the aluminum cavity and the support plate are connected by bolt fastening, and the bolt fastening method ensures the stability of the structure;

[0010] The aluminum cavity body and the aluminum cavity quick-opening door are connected by a hinge, and supplemented by a combination of a swing bolt and a swing block, thereby realizing the function of quick-opening the door and greatly improving the convenience of loading and taking out samples.

[0011] Preferably, a viewing window is embedded within the aluminum cavity, allowing the user to clearly observe the sample status. To ensure the vacuum level within the cavity is not affected, a sealing rubber ring is placed below the viewing window to achieve a good sealing effect. A glass gasket and glass pressure plate are placed above the viewing window to stabilize the window's position.

[0012] Preferably, the aluminum chamber is further provided with a sample carrier shield, a sample carrier, and a heating platform support column; the sample carrier can be customized according to the size of the sample to be tested. The heating platform support column is used to support the sample carrier and ensure that the sample carrier is located above the support plate.

[0013] The sample carrier shield is nested above the sample carrier. Its main function is to effectively prevent the sample from being blown or shifted by the airflow when the protective gas is introduced into the system, thereby ensuring the accuracy and safety of the experiment.

[0014] Preferably, the first side of the aluminum cavity is provided with an air release valve, a tee, a clamp and an angle valve in sequence. The aluminum cavity is sealed and connected to the tee through a central bracket. An ionization gauge is provided above the tee. The purpose of setting the ionization gauge is to accurately measure the vacuum degree in the system.

[0015] The three-way pipe and the angle valve are stabilized and sealed by a central bracket and a clamp; a molecular pump is provided below the angle valve, and the main function of the molecular pump is to perform vacuum extraction to ensure that the required vacuum state is achieved inside the system.

[0016] Preferably, the second side surface and the fourth side surface of the aluminum cavity are connected to the KF flange adapter sleeve through a central bracket for introducing protective gas.

[0017] Preferably, the support plate has an electrode core and a glass peak electrode built in; the electrode core is connected to the support plate through a sealing insulation device, the electrode core has the function of conducting electricity and heat, and the glass peak electrode also undertakes the task of conducting electricity and heat while connecting the vacuum and atmospheric environments.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention utilizes a temperature-controlled heating platform to control the required temperature, the heating efficiency is significant and the heating process is uniform, which ensures the stability of product quality, the equipment has low energy consumption, and the temperature-controlled platform heats up quickly, effectively improving work efficiency. The vacuum degree within the system is controlled by an ionization gauge and a molecular pump, so that the vacuum degree reaches the required accuracy. By adopting medium vacuum technology, the equipment can meet experimental needs while reducing the cost originally required for a high vacuum environment. The door is quickly opened using a hinge and the state of the sample can be observed through a window. The operation interface is friendly, and the window quick-opening door design makes it more convenient to replace the swinging sample. The device is compact in size and has a simple processing flow, making it very suitable for large-scale production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a small vacuum annealing tank of the utility model;

[0021] Figure 2 This is a schematic structural diagram of a small vacuum annealing tank from another perspective of the utility model;

[0022] In the figure: 1. Temperature-controlled heating platform; 2. Support plate; 3. Aluminum cavity; 4. Aluminum cavity quick-opening door; 5. Internal thread tightening handwheel; 6. KF flange pressure plate; 7. Swivel bolt; 8. Swivel block; 9. Air release valve; 10. Angle valve; 11. Clamp; 12. Tee; 13. Hinge; 14. Sample carrier cover; 15. Sample carrier; 16. Sealing insulation device; 17. Electrode core; 18. Glass peak electrode; 19. Heating platform support column; 20. KF flange adapter sleeve; 21. Sealing rubber ring; 22. Window; 23. Glass gasket; 24. Glass pressure plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] This utility model provides the following technical solutions:

[0025] A small vacuum annealing tank, comprising: a temperature-controlled heating platform 1, a support plate 2, and an aluminum cavity 3; the temperature-controlled heating platform 1 and the aluminum cavity 3 are separated by the support plate 2, and the temperature-controlled heating platform 1 and the support plate 2 are connected by bolts; the aluminum cavity 3 and the support plate 2 are connected by bolts;

[0026] An aluminum cavity quick-opening door 4 is arranged above the aluminum cavity body 3, and the aluminum cavity quick-opening door 4 is provided with an internal thread tightening handwheel 5, a movable block 8 and a movable bolt 7; the aluminum cavity body 3 and the aluminum cavity quick-opening door 4 are connected by a hinge 13, and supplemented by the combination of the movable bolt 7 and the movable block 8 to realize the function of quick opening of the door.

[0027] The side 1 of the aluminum chamber 3 is sequentially equipped with a bleed valve 9, a tee 12, a clamp 11, and an angle valve 10. The aluminum chamber 3 is sealed to the tee 12 via a central bracket. An ionization gauge is located above the tee 12, which accurately measures the vacuum level within the system. The tee 12 and angle valve 10 are secured and sealed by the central bracket and clamp 11. A molecular pump is located below the angle valve 10 to extract the vacuum, ensuring the desired vacuum level within the system.

[0028] Side 2 and side 4 of the aluminum cavity 3 are respectively connected to the KF flange adapter 20 through the center bracket. Side 2, side 3 and side 4 of the aluminum cavity 3 are provided with KF flange pressure plates 6 for connecting various parts on the side.

[0029] A window 22 is embedded inside the aluminum cavity 3 so that the user can clearly observe the sample status. A sealing rubber ring 21 is configured below the window 22, and a glass gasket 23 and a glass pressure plate 24 are provided above the window 22 to stabilize the position of the window 22.

[0030] The support plate 2 has an electrode core 17 and a glass peak electrode 18 built in. The electrode core 17 is connected to the support plate 2 through a sealing insulation device 16. The electrode core 17 has the function of conducting electricity and heat, and the glass peak electrode 18 connects the vacuum and atmospheric environments while also undertaking the task of conducting electricity and heat.

[0031] The working principle of the present invention is as follows: the hinge 13 is used to realize quick opening of the door, the sample is placed on the sample carrier 15, and the sample is protected by the sample carrier cover 14, the required temperature is controlled by the temperature-controlled heating platform 1, the vacuum degree in the system is controlled by the ionization gauge and the molecular pump, so that the vacuum degree reaches the required accuracy, and the state of the sample can be observed through the window 22.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A small vacuum annealing tank, characterized in that: include: A temperature-controlled heating platform (1), a support plate (2), and an aluminum cavity (3); the temperature-controlled heating platform (1) and the aluminum cavity (3) are separated by the support plate (2); an aluminum cavity quick-opening door (4) is provided above the aluminum cavity (3); and the aluminum cavity quick-opening door (4) is provided with an inner thread pressing hand wheel (5), a movable block (8), and a movable bolt (7); The first side of the aluminum cavity (3) is provided with a vent valve (9), a three-way pipe (12), a clamp (11) and an angle valve (10) in sequence, the second side and the fourth side of the aluminum cavity (3) are provided with a KF flange adapter (20), and the second side, the third side and the fourth side of the aluminum cavity (3) are provided with a KF flange pressure plate (6).

2. A small vacuum annealing tank according to claim 1, characterized in that: The temperature-controlled heating platform (1) and the support plate (2) are connected by bolt fastening; The aluminum cavity (3) and the support plate (2) are connected by bolt fastening; The aluminum cavity body (3) and the aluminum cavity quick-opening door (4) are connected via a hinge (13), supplemented by a combination of a hinge bolt (7) and a hinge block (8).

3. A small vacuum annealing tank according to claim 1, characterized in that: A window (22) is embedded in the aluminum cavity (3), a sealing rubber ring (21) is arranged below the window (22), and a glass gasket (23) and a glass pressing plate (24) are provided above the window (22).

4. A small vacuum annealing tank according to claim 1, characterized in that: The aluminum cavity (3) is further provided with a sample carrier shield (14), a sample carrier (15) and a heating platform support column (19); The heating platform support column (19) is used to support the sample carrier (15) to ensure that the sample carrier (15) is located above the support plate (2); the sample carrier shield (14) is nested above the sample carrier (15).

5. A small vacuum annealing tank according to claim 1, characterized in that: The aluminum cavity (3) is sealedly connected to a three-way pipe (12) via a central bracket; an ionization gauge is provided above the three-way pipe (12); the three-way pipe (12) and the angle valve (10) are stabilized and sealed via the central bracket and a clamp (11); and a molecular pump is provided below the angle valve (10).

6. A small vacuum annealing tank according to claim 1, characterized in that: The second side surface and the fourth side surface of the aluminum cavity (3) are connected to the KF flange-to-clamp sleeve (20) via a central bracket.

7. The small vacuum annealing tank according to claim 1, characterized in that: The support plate (2) is equipped with an electrode core (17) and a glass peak electrode (18); the electrode core (17) is connected to the support plate (2) via a sealing insulation device (16); the electrode core (17) has the function of conducting electricity and heat, and the glass peak electrode (18) connects the vacuum environment and the atmospheric environment.

Images