Device for improving ionic nitriding temperature rise

Abstract

The utility model relates to a device for improving the temperature rise of ion nitridation, which belongs to the technical field of ion nitridation, and comprises a base, a sleeve, an air inlet pipe and an exhaust pipe, the inner top of the sleeve is fixedly connected with a nitridation cylinder, the top of the base is fixedly connected with a slot, the nitridation cylinder is inserted into the slot, and the air inlet pipe and the exhaust pipe are fixedly connected with the base. The inner wall of the sleeve is fixedly connected with a spiral sheet, the spiral sheet is fixedly connected with the outer surface of the nitriding cylinder, the middle part of the sleeve is provided with a uniform heating mechanism, and the bottom of the uniform heating mechanism is fixedly connected with a gas uniformizing mechanism. Through the arrangement of the uniform heating mechanism, in the ion nitriding process of a workpiece, the uniform heating mechanism works to uniformly heat the internal environment of the nitriding cylinder, so that the internal environment is rapidly heated, and in the heating process, the fan blades blow air downwards and blow hot air downwards, so that the exhaust efficiency is reduced, and the service life of the nitriding cylinder is prolonged. Therefore, the heating efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ion nitriding, and particularly relates to a device for improving the temperature rise of ion nitriding. Background Art

[0002] Ion nitriding is a chemical heat treatment process primarily used to improve the surface properties of metal workpieces. This process utilizes plasma glow discharge to create a nitride layer within the ion nitriding equipment, thereby enhancing the workpiece's wear resistance, fatigue resistance, corrosion resistance, and high-temperature resistance. The basic process of ion nitriding involves the generation of active nitrogen atoms, their migration from the medium to the workpiece surface, and their transfer from the surface to the core. This process involves both ionization and diffusion mechanisms. Specifically, high-energy ions bombard the workpiece surface, causing iron atoms to break away from the matrix and react with the active nitrogen atoms in the air to form nitrided iron. These nitrided iron molecules then condense and deposit on the workpiece surface, forming a nitrided layer of a certain thickness.

[0003] At present, ion nitriding applies DC high voltage between the workpiece (cathode) and the furnace body (anode) to ionize the rarefied gas and produce glow discharge. The nitrogen and hydrogen cations produced by the glow discharge form a plasma zone between the cathode and the anode. These high-energy ions bombard the surface of the workpiece, causing the workpiece to heat up to the nitriding temperature. However, this method makes the workpiece heating efficiency low, the time period is long, and it consumes a lot of resources, affecting production efficiency. Based on this, a device for improving the heating of ion nitriding is proposed. Utility Model Content

[0004] The purpose of the present invention is to provide a device for increasing the temperature of ion nitriding with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A device for increasing the temperature of ion nitriding comprises a base, a sleeve, an air inlet pipe and an exhaust pipe, wherein the inner top of the sleeve is fixedly connected to a nitriding cylinder, the top of the base is fixedly connected to a slot, the nitriding cylinder is inserted into the slot, the inner wall of the sleeve is fixedly connected to a spiral sheet, the spiral sheet is fixedly connected to the outer surface of the nitriding cylinder, the side wall of the nitriding cylinder is provided with a through hole, the inner surface of the nitriding cylinder is provided with a groove, the through hole is connected to the inside of the groove, a uniform heating mechanism is installed in the middle of the sleeve, and a uniform gas mechanism is fixedly connected to the bottom of the uniform heating mechanism.

[0007] As a further optimization scheme of the present invention, the uniform heating mechanism includes a motor installed on the top of the sleeve, the output end of the motor is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to a fan blade, the bottom of the rotating shaft is fixedly connected to a fixing frame, the inner surface of the fixing frame is connected to a heating plate through a thread, and the side of the heating plate away from the fixing frame is fixedly connected to a handle.

[0008] As a further optimization solution of the present invention, the rotating shaft passes through the sleeve and is rotatably connected to the sleeve, the fan blades are located on the top of the fixing frame, and the fan blades and the fixing frame are both located in the nitriding cylinder.

[0009] As a further optimization solution of the present invention, the air uniforming mechanism includes a rotating ring fixedly connected to the bottom end of the fixing frame, and a plurality of through holes are opened on the rotating ring.

[0010] As a further optimization solution of the present invention, the rotating ring is rotatably connected to the groove, the multiple through holes are connected to the interior of the groove, and the groove is connected to the interior of the nitriding cylinder through the multiple through holes.

[0011] As a further optimization solution of the present invention, the sleeve is inserted into the top of the base, the intake pipe is fixedly connected to the outer surface of the sleeve and communicates with the inside of the sleeve, and the exhaust pipe is fixedly connected to the top of the sleeve and communicates with the inside of the nitriding cylinder.

[0012] The beneficial effects of the present invention are:

[0013] 1. The utility model sets a uniform heating mechanism. During the process of ion nitriding of the workpiece, the uniform heating mechanism makes the uniform heating mechanism work to uniformly heat the internal environment of the nitriding cylinder, so that it heats up quickly. In the process of heating, the fan blades blow air downward, blowing the hot air downward, reducing the exhaust efficiency, thereby further improving the heating efficiency.

[0014] 2. The utility model arranges the spiral blades and increases the temperature inside the nitriding tube, so that the nitriding tube can preheat the gas flowing through the spiral blades, further improving the efficiency of ion nitriding heating. At the same time, the nitriding tube can be kept warm, further ensuring the temperature of ion nitriding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model with a partial cutaway view from the front;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model with the front center cut away;

[0018] Figure 4 This is a schematic diagram of the front middle section structure of the present invention;

[0019] Figure 5 This utility model Figure 4 A in the middle is an enlarged structural diagram;

[0020] Figure 6 It is a schematic diagram of the bottom cutaway structure of the utility model.

[0021] In the figure: 1. Base; 2. Sleeve; 3. Inlet pipe; 4. Exhaust pipe; 5. Nitriding cylinder; 6. Slot; 7. Spiral plate; 8. Through hole; 9. Motor; 10. Rotating shaft; 11. Fan blade; 12. Fixing bracket; 13. Heating plate; 14. Handle; 15. Rotating ring; 16. Through hole; 17. Groove. DETAILED DESCRIPTION

[0022] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example

[0024] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, a device for improving the temperature of ion nitriding includes a base 1, a sleeve 2, an air inlet pipe 3 and an exhaust pipe 4. The inner top of the sleeve 2 is fixedly connected to a nitriding tube 5, the sleeve 2 is inserted in the top of the base 1, the air inlet pipe 3 is fixedly connected to the outer surface of the sleeve 2 and communicates with the interior of the sleeve 2, the exhaust pipe 4 is fixedly connected to the top of the sleeve 2 and communicates with the interior of the nitriding tube 5, the top of the base 1 is fixedly connected to a slot 6, the nitriding tube 5 is inserted in the slot 6, the inner wall of the sleeve 2 is fixedly connected to a spiral sheet 7, the spiral sheet 7 is fixedly connected to the outer surface of the nitriding tube 5, the side wall of the nitriding tube 5 is provided with a through hole 8, the inner surface of the nitriding tube 5 is provided with a groove 17, the through hole 8 is communicated with the interior of the groove 17, a uniform temperature rising mechanism is installed in the middle of the sleeve 2, and a uniform gas mechanism is fixedly connected to the bottom of the uniform temperature rising mechanism.

[0025] During use, the workpiece requiring ion nitriding operation is placed on the top of the base 1 and located in the slot 6, and then the sleeve 2 can be installed on the top of the base 1 so that the nitriding tube 5 is inserted into the slot 6. At this time, the uniform heating mechanism can be started so that the uniform heating mechanism heats the internal environment of the nitriding tube 5. When the uniform heating mechanism is working, the gas required for ion nitriding is injected into the sleeve 2 through the air inlet pipe 3, so that the gas passes through the spiral piece 7, and then passes through the through hole 8 and the groove 17 and the uniform gas mechanism into the nitriding tube 5 to perform ion nitriding operation on the workpiece, and then the gas is discharged through the exhaust pipe 4. In this process, the operation of the uniform heating mechanism will increase the internal temperature of the nitriding tube 5. Through the increase in the internal temperature of the nitriding tube 5, the nitriding tube 5 dissipates heat outward, and then the gas flowing through the spiral piece 7 can be preheated, further improving the efficiency of ion nitriding heating, and at the same time, the nitriding tube 5 can be kept warm, further ensuring the temperature of ion nitriding.

[0026] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the uniform heating mechanism includes a motor 9 installed on the top of the sleeve 2, the output end of the motor 9 is fixedly connected to a rotating shaft 10, the outer surface of the rotating shaft 10 is fixedly connected to a fan blade 11, the bottom of the rotating shaft 10 is fixedly connected to a fixing frame 12, the inner surface of the fixing frame 12 is connected to a heating plate 13 by a thread, and the side of the heating plate 13 away from the fixing frame 12 is fixedly connected to a handle 14, the rotating shaft 10 passes through the sleeve 2 and is rotatably connected to the sleeve 2, the fan blade 11 is located at the top of the fixing frame 12, the fan blade 11 and the fixing frame 12 are both located in the nitriding cylinder 5, the gas uniformity mechanism includes a rotating ring 15 fixedly connected to the bottom end of the fixing frame 12, a plurality of through holes 16 are opened on the rotating ring 15, the rotating ring 15 is rotatably connected to the groove 17, the plurality of through holes 16 are connected to the inside of the groove 17, and the groove 17 is connected to the inside of the nitriding cylinder 5 through the plurality of through holes 16.

[0027] When the uniform heating mechanism is started, the motor 9 and the heating plate 13 are first started so that the heating plate 13 heats the internal environment of the nitriding cylinder 5. The operation of the motor 9 will drive the rotating shaft 10 to rotate, and then drive the fan blades 11 and the fixing frame 12 to rotate. The fixing frame 12 will drive the heating plate 13 to make a circular motion in the nitriding cylinder 5, uniformly heating the internal environment of the nitriding cylinder 5, and then quickly and uniformly heating the gas required for ion nitriding entering the nitriding cylinder 5, so that the gas can be quickly heated. In the process of heating, the fan blades 11 blow air downward to heat the hot gas. The air is blown downward, reducing the exhaust efficiency, thereby further improving the heating efficiency. In this process, the rotation of the fixed frame 12 will drive the rotating ring 15 to rotate, so that the multiple through holes 16 are in a moving state, and then the multiple through holes 16 can pass gas with a temperature lower than the internal environment of the nitriding tube 5 into various positions of the internal environment of the nitriding tube 5, avoiding the local decrease in the internal temperature of the nitriding tube 5 when the gas enters the interior of the nitriding tube 5, affecting the uniformity of the internal environment temperature of the nitriding tube 5, thereby further ensuring the quality and efficiency of the ion nitriding of the workpiece.

[0028] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A device for increasing the temperature of ion nitriding, comprising a base (1), a sleeve (2), an air inlet pipe (3) and an exhaust pipe (4), characterized in that: The inner top of the sleeve (2) is fixedly connected to a nitriding cylinder (5), the top of the base (1) is fixedly connected to a slot (6), the nitriding cylinder (5) is inserted into the slot (6), the inner wall of the sleeve (2) is fixedly connected to a spiral sheet (7), the spiral sheet (7) is fixedly connected to the outer surface of the nitriding cylinder (5), the side wall of the nitriding cylinder (5) is provided with a through hole (8), the inner surface of the nitriding cylinder (5) is provided with a groove (17), the through hole (8) is communicated with the inside of the groove (17), the middle part of the sleeve (2) is installed with a uniform heating mechanism, and the bottom of the uniform heating mechanism is fixedly connected to a uniform gas mechanism.

2. The device for increasing the temperature of ion nitriding according to claim 1, characterized in that: The uniform heating mechanism comprises a motor (9) mounted on the top of the sleeve (2), the output end of the motor (9) is fixedly connected to a rotating shaft (10), the outer surface of the rotating shaft (10) is fixedly connected to a fan blade (11), the bottom of the rotating shaft (10) is fixedly connected to a fixing frame (12), the inner surface of the fixing frame (12) is connected to a heating plate (13) via a thread, and the side of the heating plate (13) away from the fixing frame (12) is fixedly connected to a handle (14).

3. The device for increasing the temperature of ion nitriding according to claim 2, characterized in that: The rotating shaft (10) passes through the sleeve (2) and is rotatably connected to the sleeve (2). The fan blade (11) is located on the top of the fixing frame (12). The fan blade (11) and the fixing frame (12) are both located in the nitriding cylinder (5).

4. The device for increasing the temperature of ion nitriding according to claim 2, characterized in that: The gas homogenizing mechanism comprises a rotating ring (15) fixedly connected to the bottom end of the fixing frame (12), and a plurality of through holes (16) are formed on the rotating ring (15).

5. The device for increasing the temperature of ion nitriding according to claim 4, characterized in that: The rotating ring (15) is rotatably connected to the groove (17), the plurality of through holes (16) are communicated with the interior of the groove (17), and the groove (17) is communicated with the interior of the nitriding cylinder (5) through the plurality of through holes (16).

6. The device for increasing the temperature of ion nitriding according to claim 1, characterized in that: The sleeve (2) is plugged into the top of the base (1), the air inlet pipe (3) is fixedly connected to the outer surface of the sleeve (2) and communicates with the interior of the sleeve (2), and the exhaust pipe (4) is fixedly connected to the top of the sleeve (2) and communicates with the interior of the nitriding cylinder (5).

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