High-temperature heat treatment equipment with good corrosion resistance

Abstract

The utility model discloses high-temperature heat treatment equipment with good corrosion resistance, and relates to the technical field of heat treatment, the high-temperature heat treatment equipment comprises a heat preservation box body and a heat preservation door body, the heat preservation box body and the heat preservation door body are connected through hinges, and a plurality of supporting structures are mounted on the lower wall surface in the heat preservation box body; the lower wall faces of the heat preservation box body and the heat preservation door body are provided with blocking structures, and the upper wall face of the heat preservation box body is provided with an exhaust structure. According to the utility model, oxygen isolation can be realized in a heating stage, a heat preservation stage and a cooling stage of heat treatment until heat treatment is finished, and the surface of a metal workpiece can be ensured not to be in contact with oxygen, so that the condition of surface corrosion of the metal workpiece is avoided, and the quality of metal heat treatment is improved; and the function of temperature feedback linkage is realized, and parameters such as time, air pressure, temperature and the like can be adjusted according to specific heat treatment conditions, so that smooth metal heat treatment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology, and in particular to a high-temperature heat treatment device with good corrosion resistance. Background Technology

[0002] Metal heat treatment is one of the important processes in mechanical manufacturing. Compared with other processing techniques, heat treatment generally does not change the shape or overall chemical composition of the workpiece. Instead, it imparts or improves the workpiece's performance by altering its internal microstructure or surface chemical composition. Its characteristic is the improvement of the workpiece's intrinsic quality, which is generally not visible to the naked eye. To ensure that metal workpieces possess the required mechanical, physical, and chemical properties, in addition to the rational selection of materials and various forming processes, heat treatment is often indispensable.

[0003] Metal heat treatment can lead to workpiece surface corrosion, which refers to the appearance of rust spots, black spots, and other phenomena on the surface of a workpiece after heat treatment. Once it occurs, it will reduce the quality and function of the workpiece surface and may even cause the workpiece to fail. The main reason for this phenomenon is that during the heat treatment process, due to the increase in temperature and the contact between the metal surface and the gas, an oxide film will form. This oxide film will prevent further oxidation reactions, thereby causing corrosion on the workpiece surface. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-temperature heat treatment device with good corrosion resistance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-temperature heat treatment device with good corrosion resistance includes: an insulated box and an insulated door, the insulated box and the insulated door being connected by hinges; a plurality of supporting structures are installed on the lower inner wall of the insulated box; a sealing structure is installed on the lower wall of the insulated box and the insulated door; an exhaust structure is installed on the upper wall of the insulated box; an air replenishment structure is installed on the rear wall of the insulated box; a plurality of heaters are respectively installed on the upper inner wall, the lower inner wall, and the two inner side walls of the insulated box; the plurality of supporting structures include: supporting columns and supporting balls; the supporting columns are installed on the lower inner wall of the insulated box, and the supporting balls are installed on the upper wall of the supporting columns.

[0007] The present invention is further configured such that the sealing structure includes: two sealing plates, a sealing screw, and a sealing nut; the two sealing plates are respectively installed on the lower wall of the insulation box and the insulation door, the sealing screw is movably installed between the two sealing plates, and the sealing screw is fixed by the sealing nut.

[0008] The present invention is further configured such that the exhaust structure includes: an exhaust pipe and an exhaust solenoid valve; the exhaust pipe is installed on the upper wall of the insulation box, and the exhaust solenoid valve is installed on the outside of the exhaust pipe.

[0009] The present invention is further configured such that the gas replenishment structure includes: an air inlet pipe, an air inlet solenoid valve, a heating pipe, a gas replenishment pipe, a one-way valve, and an inert gas tank; the air inlet pipe is installed on the back of the insulation box, the air inlet solenoid valve is installed outside the air inlet pipe, the heating pipe is installed at the tail end of the air inlet pipe, one end of the gas replenishment pipe is connected to the heating pipe, the inert gas tank is installed at the other end of the gas replenishment pipe, and the one-way valve is installed outside the gas replenishment pipe.

[0010] The present invention is further provided with four heat-insulating support legs installed on the lower wall of the heat-insulating box.

[0011] The present invention is further provided that a temperature sensor is installed on the inner wall surface of the heat-insulating door, and a pressure sensor is installed on the inner wall surface of the heat-insulating door.

[0012] The beneficial effects of this utility model are as follows: This utility model can isolate oxygen during the heating, holding and cooling stages of heat treatment until the heat treatment is completed, ensuring that the surface of the metal workpiece will not come into contact with oxygen, thus avoiding surface corrosion of the metal workpiece and improving the quality of metal heat treatment. In addition, this utility model realizes the function of temperature feedback linkage, which can adjust parameters such as time, air pressure and temperature according to the specific heat treatment situation, thereby ensuring the smooth progress of metal heat treatment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first overall structure of a high-temperature heat treatment device with good corrosion resistance proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the second integral structure of a high-temperature heat treatment device with good corrosion resistance proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of a high-temperature heat treatment device with good corrosion resistance proposed in this utility model.

[0016] In the diagram: 1. Insulated box body; 2. Insulated door body; 3. Heater; 4. Support column; 5. Support ball; 6. Sealing plate; 7. Sealing screw; 8. Sealing nut; 9. Exhaust pipe; 10. Exhaust solenoid valve; 11. Inlet pipe; 12. Inlet solenoid valve; 13. Heating tube; 14. Air supply pipe; 15. One-way valve; 16. Inert gas tank; 17. Insulated support leg; 18. Temperature sensor; 19. Pressure sensor. Detailed Implementation

[0017] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0018] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0019] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0020] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0021] Reference Figure 1-3 A high-temperature heat treatment device with good corrosion resistance includes: an insulated box 1 and an insulated door 2, which are connected by hinges. The lower inner wall of the insulated box 1 is equipped with several supporting structures. The lower walls of both the insulated box 1 and the insulated door 2 are equipped with sealing structures. The upper wall of the insulated box 1 is equipped with an exhaust structure, and the rear wall of the insulated box 1 is equipped with a gas supply structure. Several heaters 3 are installed on the upper inner wall, lower inner wall, and two inner side walls of the insulated box 1. The supporting structures include: support columns 4 and support balls 5. The support columns 4 are installed on the lower inner wall of the insulated box 1, and the support balls 5 are installed on the upper wall of the support columns 4. Four heat-insulating feet 17 are installed on the lower wall of the insulated box 1. A temperature sensor 18 and a pressure sensor 19 are installed on the inner wall of the insulated door 2.

[0022] Specifically, the sealing structure includes: two sealing plates 6, a sealing screw 7, and a sealing nut 8; the two sealing plates 6 are respectively installed on the lower wall of the insulation box 1 and the insulation door 2, the sealing screw 7 is movably installed between the two sealing plates 6, and the sealing screw 7 is fixed by the sealing nut 8.

[0023] Specifically, the exhaust structure includes an exhaust pipe 9 and an exhaust solenoid valve 10; the exhaust pipe 9 is installed on the upper wall of the insulation box 1, and the exhaust solenoid valve 10 is installed on the outside of the exhaust pipe 9.

[0024] Specifically, the gas replenishment structure includes: an air inlet pipe 11, an air inlet solenoid valve 12, a heating tube 13, a gas replenishment pipe 14, a one-way valve 15, and an inert gas tank 16; the air inlet pipe 11 is installed on the back of the insulation box 1, the air inlet solenoid valve 12 is installed outside the air inlet pipe 11, the heating tube 13 is installed at the tail of the air inlet pipe 11, one end of the gas replenishment pipe 14 is connected to the heating tube 13, the inert gas tank 16 is installed at the other end of the gas replenishment pipe 14, and the one-way valve 15 is installed outside the gas replenishment pipe 14.

[0025] Working Principle: When using this utility model, the operator first connects an external AC power supply to provide energy to the electrical appliance. The operator places the parts to be heat-treated directly inside the insulation box 1, with the parts placed on the upper walls of the support column 4 and support ball 5. The support ball 5 can make point contact with the metal parts. Then, the operator closes the insulation door 2 and the insulation box 1 using the hinges. The operator also closes the two sealing plates 6 containing the sealing screw 7 and sealing nut 8, ensuring the insulation box 1 and insulation door 2 are sealed. At the same time, the inert gas tank 16 is filled with protective gas that does not participate in the heat treatment. At this time, the exhaust solenoid valve 10 and the intake solenoid valve 12 open simultaneously, and the protective gas is discharged from the inert gas tank 16, passing through the gas replenishment pipe 14 and the heating element. Pipe 13 and inlet pipe 11 enter the interior of the insulation box 1 and insulation door 2. When the oxygen is completely discharged from the interior of this utility model, the exhaust solenoid valve 10 and inlet solenoid valve 12 close simultaneously, the heater 3 starts to work, and the interior of the insulation box 1 and insulation door 2 heats up to perform heat treatment on the metal parts. The temperature sensor 18 and heater 3 are linked to maintain a stable temperature in the insulation box 1. When the heat treatment is completed and the heat preservation time is completed, cooling is required. At this time, the heater 3 gradually reduces the heating temperature, and the exhaust solenoid valve 10, inlet solenoid valve 12 and heating pipe 13 open simultaneously. The heating temperature of heating pipe 13 and the measured temperature of temperature sensor 18 remain consistent. When the metal parts cool down to room temperature, all electrical appliances in this utility model are turned off, and the heat treatment is completed.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-temperature heat treatment device with good corrosion resistance, comprising: The insulated box (1) and the insulated door (2) are connected by hinges. The insulated box (1) and the insulated door (2) are characterized in that the lower inner wall of the insulated box (1) is equipped with several supporting structures, the lower walls of the insulated box (1) and the insulated door (2) are equipped with sealing structures, the upper wall of the insulated box (1) is equipped with an exhaust structure, the rear wall of the insulated box (1) is equipped with an air replenishment structure, and the upper inner wall, the lower inner wall and the two inner side walls of the insulated box (1) are respectively equipped with several heaters (3). Several of the aforementioned support structures include: support columns (4) and support balls (5); The support column (4) is installed on the inner lower wall of the insulation box (1), and the support ball (5) is installed on the upper wall of the support column (4).

2. The high-temperature heat treatment equipment with good corrosion resistance according to claim 1, characterized in that, The sealing structure includes: two sealing plates (6), a sealing screw (7), and a sealing nut (8); The two sealing plates (6) are respectively installed on the lower wall of the insulation box (1) and the insulation door (2). The sealing screw (7) is movably installed between the two sealing plates (6) and the sealing screw (7) is fixed by the sealing nut (8).

3. The high-temperature heat treatment equipment with good corrosion resistance according to claim 1, characterized in that, The exhaust structure includes: an exhaust pipe (9) and an exhaust solenoid valve (10); The exhaust pipe (9) is installed on the upper wall of the insulation box (1), and the exhaust solenoid valve (10) is installed outside the exhaust pipe (9).

4. The high-temperature heat treatment equipment with good corrosion resistance according to claim 1, characterized in that, The gas replenishment structure includes: an air inlet pipe (11), an air inlet solenoid valve (12), a heating pipe (13), a gas replenishment pipe (14), a one-way valve (15), and an inert gas tank (16); The air inlet pipe (11) is installed on the back of the heat preservation box (1), the air inlet solenoid valve (12) is installed outside the air inlet pipe (11), the heating pipe (13) is installed at the tail of the air inlet pipe (11), one end of the gas supply pipe (14) is connected to the heating pipe (13), the inert gas tank (16) is installed at the other end of the gas supply pipe (14), and the one-way valve (15) is installed outside the gas supply pipe (14).

5. The high-temperature heat treatment equipment with good corrosion resistance according to claim 1, characterized in that, The lower wall of the insulated box (1) is equipped with four heat-insulating support legs (17).

6. The high-temperature heat treatment equipment with good corrosion resistance according to claim 1, characterized in that, A temperature sensor (18) is installed on the inner wall of the insulated door (2), and a pressure sensor (19) is installed on the inner wall of the insulated door (2).

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