Modular pulsed power supply ion nitriding furnace

Abstract

The utility model discloses a modularized pulsed power supply ion nitriding furnace which is characterized by comprising a nitriding furnace body, a nitriding cavity is formed in one side of the inside of the nitriding furnace body, the inside of the nitriding cavity and the inside of a power supply cavity are fixedly connected with isolation plates, and the internal space of the nitriding furnace body is divided by the isolation plates to form nitriding modules. A heating resistor is fixedly mounted on one side of the nitriding module, a pulse power supply is fixedly mounted on the other side of the nitriding module, an anode inner wall is fixedly mounted on the surface of the isolation plate, a cathode supporting rod is slidably mounted on the inner wall of the nitriding cavity, and a supporting adjusting mechanism is arranged at one end of the cathode supporting rod. The nitriding furnace has the following effects that the space in the nitriding furnace body is divided into a plurality of nitriding modules through the separation plates, and the pulse power supply is respectively arranged in each nitriding module, so that the frequency and the duty ratio of the pulse power supply in each nitriding module are flexibly adjusted according to the specific nitriding requirements of workpieces; and therefore, different types of workpieces can be nitrided synchronously, and the production flexibility and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of ion nitriding furnace technology, and more specifically, to a modular pulse power supply ion nitriding furnace. Background Technology

[0002] Ion nitriding, as an advanced surface treatment technology, forms a hard, wear-resistant, and corrosion-resistant nitrided layer on the surface of metal workpieces through the glow discharge principle, thereby significantly improving the workpiece's hardness, wear resistance, corrosion resistance, and fatigue strength. The traditional ion nitriding furnace is the key equipment for this process. It generates high-energy ions by ionizing a specific gas in a vacuum environment, which bombard the workpiece surface, causing nitrogen to penetrate the surface and achieve a strengthening effect.

[0003] However, as industrial production demands increasing efficiency and flexibility, traditional ion nitriding furnaces are gradually revealing their limitations. First, the nitrogen requirements of workpieces of different sizes and materials vary significantly, meaning that precise control of nitriding conditions is necessary for each type of workpiece to ensure optimal processing results. Second, in practical applications, simultaneously processing different types of workpieces requires either sequentially nitriding each workpiece individually or purchasing multiple nitriding furnaces to meet the simultaneous processing needs of different workpiece types. This undoubtedly increases production costs and space requirements, while also reducing production efficiency. Utility Model Content

[0004] To address the problems in related technologies, this utility model proposes a modular pulse power supply ion nitriding furnace to overcome the aforementioned technical problems existing in the prior art.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A modular pulse power ion nitriding furnace includes a nitriding furnace body. A nitriding chamber is formed on one side of the furnace body, and a power supply chamber is formed on the other side. An isolation plate is fixedly connected to the nitriding chamber and the power supply chamber. The internal space of the furnace body is divided by the isolation plate to form nitriding modules. A heating resistor is fixedly installed on one side of each nitriding module, and a pulse power supply is fixedly installed on the other side. An anode inner wall is fixedly installed on the surface of the isolation plate. Two cathode support rods are slidably installed on the inner wall of the nitriding chamber, and one end of each cathode support rod is equipped with a support adjustment mechanism.

[0007] Furthermore, in order to support workpieces of different sizes, the support adjustment mechanism includes a sliding groove on the inner wall of the nitriding chamber, a transmission screw is rotatably installed inside the sliding groove, the cathode support rod is threadedly connected to the transmission screw, and one end of the transmission screw rotatably passes through the nitriding furnace body and is fixedly connected to a turning head.

[0008] Furthermore, in order to evacuate the nitriding chamber to a vacuum state and inject nitrogen into it, a transmission pipe is fixedly installed on one side of the nitriding chamber, and a T-junction pipe is fixedly connected to one side of the transmission pipe.

[0009] Furthermore, in order to achieve rapid cooling within the nitriding chamber, cooling chambers are opened on both sides of the nitriding furnace body. A water injection pipe is fixedly connected to one side of the cooling chamber, and a drain pipe is fixedly connected to the other side.

[0010] Furthermore, in order to achieve relative movement of the two cathode support rods when the transmission screw rotates, the internal threads at the connection points of the cathode support rods on both sides of the transmission screw are opposite.

[0011] Furthermore, in order to enable portable installation, removal, and replacement of the pulse power supply within the power supply chamber, the power supply chamber and the pulse power supply are electrically connected via an aviation plug.

[0012] Furthermore, in order to control the various electrical components inside the nitriding furnace, a PLC controller is fixedly installed on one side of the surface of the nitriding furnace.

[0013] Furthermore, in order to control the on / off state of the two ends of the tee pipe, solenoid valves are fixedly installed at both ends of the tee pipe.

[0014] Furthermore, in order to achieve sealed protection of the nitriding chamber and the power supply chamber, a sealed feeding door is rotatably installed on one side of the nitriding furnace body, and a protective door is rotatably installed on the other side.

[0015] Furthermore, in order to enable the nitriding furnace body to be moved and supported, casters are installed on both sides of the bottom of the nitriding furnace body.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The space inside the nitriding furnace is divided into multiple nitriding modules by an isolation plate, and a pulse power supply is installed in each nitriding module. When nitriding different workpieces, the frequency and duty cycle of the pulse power supply in each nitriding module can be flexibly adjusted according to the specific nitriding requirements of the workpiece. It also supports the parallel operation of multiple processing modules, so that different types of workpieces can be nitrided at the same time, which greatly improves the flexibility and efficiency of production.

[0018] 2. Compared with traditional DC power, when processing workpieces using pulse power, the pulse interval can automatically extinguish abnormal arcs, avoid workpiece surface ablation, and the intermittent power supply can reduce overall energy consumption. By adjusting pulse parameters (such as frequency and duty cycle), the energy input mode, temperature distribution and nitrogen atom diffusion rate in the ion nitriding process can be effectively controlled, making the nitriding effect on the workpiece surface more uniform.

[0019] 3. By rotating the transmission screw in the support adjustment mechanism, the two cathode support rods move relative to each other in the nitriding chamber, thereby changing the distance between the two cathode support rods when facing workpieces of different sizes, and providing stable support for the workpieces. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the surface structure of a modular pulse power supply ion nitriding furnace according to an embodiment of the present utility model;

[0022] Figure 2 This is an internal cross-sectional view of the nitriding furnace body in a modular pulse power ion nitriding furnace according to an embodiment of the present invention;

[0023] Figure 3 This is a side view of a modular pulse power supply ion nitriding furnace according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the power supply cavity in a modular pulse power ion nitriding furnace according to an embodiment of the present invention.

[0025] In the picture:

[0026] 1. Nitriding furnace body; 2. Nitriding chamber; 3. Power supply chamber; 4. Isolation plate; 5. Nitriding module; 6. Heating resistor; 7. Pulse power supply; 8. Anode inner wall; 9. Cathode support rod; 10. Support adjustment mechanism; 1001. Sliding groove; 1002. Transmission screw; 1003. Twisting head; 11. Transmission pipe; 12. T-shaped pipe; 13. Cooling chamber; 14. Water injection pipe; 15. Drainage pipe; 16. PLC controller; 17. Solenoid valve; 18. Sealed loading door; 19. Protective door; 20. Casters. Detailed Implementation

[0027] 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.

[0028] According to an embodiment of the present invention, a modular pulse power supply ion nitriding furnace is provided.

[0029] Example 1:

[0030] like Figures 1-4 As shown, a modular pulse power ion nitriding furnace according to an embodiment of the present invention includes a stainless steel nitriding furnace body 1. A nitriding chamber 2 is formed on one side of the furnace body 1, and a power supply chamber 3 is formed on the other side. Three isolation plates 4 are fixedly connected inside the nitriding chamber 2 and the power supply chamber 3, dividing the internal space of the furnace body 1 into three nitriding modules 5. A heating resistor 6 is fixedly installed on one side of each nitriding module 5 for high-temperature heating of the nitriding chamber 2, and a pulse power supply 7 is fixedly installed on the other side for glow discharge during nitriding. An anode inner wall 8 is fixedly installed on the surface of the isolation plates 4, and a conductor is electrically connected to the positive terminal of the pulse power supply 7. Two cathode support rods 9 are slidably installed on the inner wall of the nitriding chamber 2, and are electrically connected to the negative terminal of the pulse power supply 7 via conductors to support the workpiece being nitrided. A support adjustment mechanism 10 is provided at one end of each cathode support rod 9 to adjust the distance between the two cathode support rods 9, thereby supporting workpieces of different sizes.

[0031] like Figures 1-4As shown, the support adjustment mechanism 10 includes a sliding groove 1001 on the inner wall of the nitriding chamber 2. A transmission screw 1002 is rotatably installed inside the sliding groove 1001. The cathode support rod 9 is threadedly connected to the transmission screw 1002, and the internal threads of the two cathode support rods 9 on both sides of the transmission screw 1002 are opposite. One end of the transmission screw 1002 rotatably passes through the nitriding furnace body 1 and is fixedly connected to a turning head 1003. By turning the transmission screw 1002 through the turning head 1003, the two cathode support rods 9 on the surface of the transmission screw 1002 move relative to each other, thereby changing the distance between the two cathode support rods 9 and supporting workpieces of different sizes. A transmission pipe 11 is fixedly installed on one side of the nitriding chamber 2, and a three-way pipe 12 is fixedly connected to one side of the transmission pipe 11. Solenoid valves 17 are fixedly installed at both ends of the three-way pipe 12. By opening and closing the solenoid valves 17, the two ends of the three-way pipe 12 can respectively perform vacuum extraction and... Nitrogen gas is injected to achieve subsequent nitriding processing of the workpiece; cooling chambers 13 are opened on both sides of the nitriding furnace body 1, and the two cooling chambers 13 are connected to each other by pipes. A water injection pipe 14 is fixedly connected to one side of one cooling chamber 13, and a drain pipe 15 is fixedly connected to one side of the other cooling chamber 13; the power supply chamber 3 and the pulse power supply 7 are electrically connected through an aviation plug for easy loading, unloading and replacement of the pulse power supply 7 in the power supply chamber 3; a PLC controller 16 is fixedly installed on one side of the surface of the nitriding furnace body 1 for controlling the various electrical components in the device; a sealed loading door 18 is rotatably installed on one side of the nitriding furnace body 1 for placing workpieces in each nitriding module 5 after opening, and sealing the nitriding chamber 2 after closing; a protective door 19 is rotatably installed on the other side for protecting the pulse power supply 7 after closing; universal wheels 20 are rotatably installed on both sides of the bottom of the nitriding furnace body 1 for moving and supporting the nitriding furnace body 1.

[0032] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0033] In summary, by means of the above-mentioned technical solution of this utility model, in actual use, by turning the head 1003 to rotate the transmission screw 1002, the two cathode support rods 9 on the surface of the transmission screw 1002 are moved relative to each other, thereby changing the distance between the two cathode support rods 9. Each workpiece that needs to be nitrided is placed in a different nitriding module 5. The sealed loading door 18 is closed, and the solenoid valves 17 at both ends of the three-way pipe 12 are switched on and off, so that the transmission pipe 11 performs vacuum extraction and nitrogen injection into the nitriding chamber 2 respectively. Then, the heating resistor 6 is used to rapidly heat the nitriding chamber 2. The pulse power supply 7 corresponding to each nitriding module 5 is controlled respectively, so that when different workpieces are nitrided, the frequency and duty cycle of the pulse power supply 7 in each nitriding module 5 can be flexibly adjusted according to the specific nitriding requirements of the workpiece, so that different types of workpieces can be nitrided simultaneously in the nitriding furnace body 1.

[0034] 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 modular pulsed power supply ion nitriding furnace characterized by, The utility model provides a nitrogenization furnace body (1), the inside one side of nitrogenization furnace body (1) is opened nitrogenization cavity (2), the other side is opened power cavity (3), and the inside fixed connection of nitrogenization cavity (2) and power cavity (3) has the isolation board (4), and the inside space of nitrogenization furnace body (1) is separated and forms nitrogenization module (5) by the isolation board (4), and one side fixed mounting of nitrogenization module (5) has heating resistance (6), the other side fixed mounting has pulse power supply (7), and the surface fixed mounting of isolation board (4) has anode inner wall (8), and the inner wall of nitrogenization cavity (2) is slidably installed with cathode support rod (9), and the number of cathode support rod (9) is two, and one end of cathode support rod (9) is equipped with support adjusting mechanism (10).

2. The modular pulsed power supply ion nitriding furnace of claim 1, wherein, Support adjusting mechanism (10) includes the sliding groove (1001) of the inner wall of nitrogenization cavity (2) and is opened, the inside rotatable mounting of sliding groove (1001) has transmission screw rod (1002), and cathode support rod (9) is connected with transmission screw rod (1002) screw, and one end rotatable of transmission screw rod (1002) passes through nitrogenization furnace body (1) fixed connection has screwing head (1003).

3. The modular pulsed power supply ion nitriding furnace of claim 1, wherein, Nitrogenization cavity (2) one side fixed mounting has transmission pipeline (11), and one side fixed connection of transmission pipeline (11) has three way pipeline (12).

4. The modular pulsed power supply ion nitriding furnace of claim 1 wherein, Nitrogenization furnace body (1) both sides are opened cooling cavity (13), and one side fixed connection of cooling cavity (13) has water injection pipe (14), and the other side fixed connection has drain pipe (15).

5. The modular pulsed power supply ion nitriding furnace of claim 2 wherein, The connection of transmission screw rod (1002) both sides cathode support rod (9) is opposite in screw thread.

6. The modular pulsed power supply ion nitriding furnace of claim 1 wherein, Power cavity (3) and pulse power supply (7) are electrically connected through aviation plug.

7. The modular pulsed power supply ion nitriding furnace of claim 1 wherein, Nitrogenization furnace body (1) surface one side fixed mounting has plc controller (16).

8. The modular pulsed power supply ion nitriding furnace of claim 1 wherein, Three way pipeline (12) both ends are fixedly installed with electromagnetic valve (17).

9. The modular pulsed power supply ion nitriding furnace of claim 1 wherein, Nitrogenization furnace body (1) one side rotatable mounting has sealing feeding door (18), and the other side rotatable mounting has protection door (19).

10. The modular pulsed power supply ion nitriding furnace of claim 1 wherein, Nitrogenization furnace body (1) bottom both sides rotatable mounting has universal wheel (20).

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