Anode nozzle with powder feeding channel

Abstract

The utility model relates to the technical field of plasma processing equipment, in particular to an anode nozzle with a powder feeding channel, which mainly comprises an extended nozzle and a plasma copper electrode in threaded connection with one end of the extended nozzle. A plasma arc gas powder channel penetrating through the extension nozzle and the plasma copper electrode at the same time is formed in the middle of the extension nozzle and the plasma copper electrode, and a front end gas powder channel penetrating through the extension nozzle and the plasma copper electrode is formed in the connecting position of the extension nozzle and the plasma copper electrode. By means of the structure, gas or powder can be input in the front-end gas-powder channel or the rear-end gas-powder channel, use of a long powder feeding pipe can be avoided, and the size of the whole device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plasma processing equipment technology, and more specifically, to an anode nozzle with a powder feeding channel. Background Technology

[0002] Plasma processors are primarily used in the printing and packaging, electronics, plastics, home appliance, automotive, and printing and coding industries. In the printing and packaging industry, they can be directly connected to fully automatic box-gluing machines. Plasma is mainly used for lamination, UV coating, and the processing of polymers, metals, semiconductors, rubber, plastics, and glass. PCB电路板 Surface treatments are applied to various complex materials to improve surface adhesion and achieve optimal results in adhesive, screen printing, pad printing, and spraying applications.

[0003] In existing technologies, a relatively long powder feeding pipe is typically connected to the anode nozzle, which increases the overall size of the device and the space it occupies, making it inconvenient to carry and store the equipment. Utility Model Content

[0004] The purpose of this invention is to provide an anode nozzle with a powder feeding channel to solve the problem of large size caused by the need for a separate powder feeding pipe to connect to the anode nozzle in the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] An anode nozzle with a powder feeding channel includes an extended nozzle and a plasma copper electrode threaded to one end of the extended nozzle. A plasma arc gas powder channel is formed in the middle of the extended nozzle and the plasma copper electrode, which passes through both the extended nozzle and the plasma copper electrode.

[0007] A front gas-powder channel is provided at the connection between the extended nozzle and the plasma copper electrode, penetrating the extended nozzle and the plasma copper electrode. A rear gas-powder channel is provided in the middle of the extended nozzle, penetrating the extended nozzle. The front gas-powder channel and the rear gas-powder channel are used to connect with the external plasma arc gas-powder channel.

[0008] Preferably, the front gas-powder channel is provided with a front gas-powder inlet at the end away from the plasma arc gas-powder channel, and the rear gas-powder channel is provided with a rear gas-powder inlet at the end away from the plasma arc gas-powder channel.

[0009] Preferably, a cooling water channel is provided at the end of the plasma copper electrode away from the extended nozzle.

[0010] Preferably, a front-end air-powder uniform distribution ring is provided in the middle of the front-end air-powder channel.

[0011] Preferably, a rear air-powder uniform distribution ring is provided in the middle of the rear air-powder channel.

[0012] Preferably, a front-end gas-powder and plasma mixing zone is formed near the front-end gas-powder channel in the plasma arc gas-powder channel, and a rear-end gas-powder and plasma mixing zone is formed near the rear-end gas-powder channel in the plasma arc gas-powder channel.

[0013] Preferably, a gas-powder pyrolysis zone is provided in front of the rear gas-powder and plasma mixing zone.

[0014] Preferably, the extended nozzle is made of graphite or metal.

[0015] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0016] The structure used in this invention mainly includes an extended nozzle and a plasma copper electrode threaded to one end of the extended nozzle. A plasma arc gas-powder channel is formed in the middle of both the extended nozzle and the plasma copper electrode, penetrating both. A front-end gas-powder channel is formed at the connection point between the extended nozzle and the plasma copper electrode, also penetrating both. This structure allows for gas or powder input through either the front-end or rear-end gas-powder channel, avoiding the use of a long powder delivery pipe and reducing the overall size of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model without the addition of an air-powder uniform distribution ring.

[0020] Icons: 1-Front-end air-powder inlet, 2-Cooling water channel, 3-Front-end air-powder channel, 4-Front-end air-powder distribution ring, 5-Plasma copper electrode, 6-Rear-end air-powder distribution ring, 7-Rear-end air-powder inlet, 8-Rear-end air-powder channel, 9-Extended nozzle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Please refer to Figures 1-2 The present invention provides an anode nozzle with a powder feeding channel, comprising an extended nozzle 9 and a plasma copper electrode 5 threadedly connected to one end of the extended nozzle 9. A plasma arc gas powder channel is provided in the middle of the extended nozzle 9 and the plasma copper electrode 5, which simultaneously penetrates the extended nozzle 9 and the plasma copper electrode 5.

[0023] A front gas-powder channel 3 is provided at the connection between the extended nozzle 9 and the plasma copper electrode 5, penetrating the extended nozzle 9 and the plasma copper electrode 5. A rear gas-powder channel 8 is provided in the middle of the extended nozzle 9, penetrating the extended nozzle 9. The front gas-powder channel 3 and the rear gas-powder channel 8 are used to connect with the external plasma arc gas-powder channel.

[0024] The structure used in this invention mainly includes an extended nozzle 9 and a plasma copper electrode 5 threadedly connected to one end of the extended nozzle 9. A plasma arc gas-powder channel is formed in the middle of the extended nozzle 9 and the plasma copper electrode 5, penetrating both. A front gas-powder channel 3 is formed at the connection point between the extended nozzle 9 and the plasma copper electrode 5, penetrating both. With this structure, gas or powder can be input through either the front gas-powder channel 3 or the rear gas-powder channel 8, avoiding the use of a long powder delivery pipe and reducing the overall size of the device.

[0025] In addition, the front gas-powder channel 3 is provided with a front gas-powder inlet 1 at the end away from the plasma arc gas-powder channel, the rear gas-powder channel 8 is provided with a rear gas-powder inlet 7 at the end away from the plasma arc gas-powder channel, and the plasma copper electrode 5 is provided with a cooling water channel 2 at the end away from the extension nozzle 9.

[0026] In use, the non-transfer arc column is stable and can reach a high temperature of 3000℃ to 4000℃. It is easy to operate and convenient to control. A vertical through hole is opened on the side of the copper anode as the front gas-powder inlet 1, which is used to transport various types of powders or gases. The powders or gases enter the plasma arc gas-powder channel through the front gas-powder channel 3, and are fully mixed with the plasma ring column. They are rapidly vaporized or decomposed at high temperature, and are ejected through the plasma arc and gas-powder channel to the extended nozzle 9.

[0027] Among them, the front-end gas-powder inlet 1 has a high temperature and can deliver some powders or gases that need to be vaporized or rapidly pyrolyzed. Due to the constraint effect of the extended nozzle 9, the heating time of the powder and gas is extended, so the vaporization and pyrolysis effect is better and it is suitable for processes such as nano-generation after pyrolysis.

[0028] The temperature of the gas-powder inlet 7 at the rear end is slightly lower, but it can crack a large amount of powder and gas, which can be used for rapid melting or spheroidization of powder, as well as surface crystallization and other operations. The extended nozzle 9 is made of graphite or other high-temperature resistant materials.

[0029] The above-mentioned device can be used to prepare nanoscale metal powders, non-metal powders, oxides, nitrides, etc. using micron-sized particles; it can spheroidize micron-sized particles and crystallize the powder surface; it can decompose organic gases to obtain different types of elements such as carbon, oxygen, hydrogen, etc.

[0030] In the above embodiments, since the powder inlet and air inlet are single vertical holes, uneven heating of the powder will occur during actual operation, resulting in limited efficiency improvement. In an exemplary embodiment of this utility model, a front air-powder uniform distribution ring 4 is provided in the middle of the front air-powder channel 3, and a rear air-powder uniform distribution ring 6 is provided in the middle of the rear air-powder channel 8.

[0031] Before the addition of the powder distribution ring, only one front-end air-powder channel 3 and one rear-end air-powder channel 8 can be set. However, after the addition of the powder distribution ring, the number of front-end air-powder channels 3 or rear-end air-powder channels 8 can be increased to 2 to 6 or even more around the entire extended nozzle 9, making the powder and air intake more uniform and the pyrolysis or vaporization efficiency higher.

[0032] In addition, the rear gas-powder channel 8 has been changed to be inclined along the direction of the plasma arc, with an inclination angle of about 5-45°. The direction of powder and gas inlet is consistent with that of the electric arc, which can mix well, improve the pyrolysis or vaporization efficiency, reduce the scouring of the plasma arc and gas-powder channel 10 in the extended spray group, and extend the service life.

[0033] A front-end gas-powder and plasma mixing zone is formed near the front-end gas-powder channel 3, and a rear-end gas-powder and plasma mixing zone is formed near the rear-end gas-powder channel 8. A gas-powder pyrolysis zone is provided in front of the rear-end gas-powder and plasma mixing zone.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An anode nozzle with a powder feeding channel, characterized in that, It includes an extended nozzle (9) and a plasma copper electrode (5) threaded to one end of the extended nozzle (9). The extended nozzle (9) and the plasma copper electrode (5) are provided with a plasma arc gas powder channel that passes through both the extended nozzle (9) and the plasma copper electrode (5) in the middle. A front gas-powder channel (3) is provided at the connection between the extended nozzle (9) and the plasma copper electrode (5), and a rear gas-powder channel (8) is provided in the middle of the extended nozzle (9). The front gas-powder channel (3) and the rear gas-powder channel (8) are used to connect the external gas-powder channel with the plasma arc gas-powder channel.

2. An anode nozzle with a powder feeding channel according to claim 1, characterized in that, The front gas-powder channel (3) is provided with a front gas-powder inlet (1) at the end away from the plasma arc gas-powder channel, and the rear gas-powder channel (8) is provided with a rear gas-powder inlet (7) at the end away from the plasma arc gas-powder channel.

3. An anode nozzle with a powder feeding channel according to claim 1, characterized in that, The plasma copper electrode (5) has a cooling water channel (2) at the end away from the extended nozzle (9).

4. An anode nozzle with a powder feeding channel according to claim 1, characterized in that, A front-end air-powder distribution ring (4) is provided in the middle of the front-end air-powder channel (3).

5. An anode nozzle with a powder feeding channel according to claim 1, characterized in that, A rear air-powder uniform distribution ring (6) is provided in the middle of the rear air-powder channel (8).

6. An anode nozzle with a powder feeding channel according to claim 1, characterized in that, The plasma arc gas powder channel forms a front gas powder and plasma mixing zone near the front gas powder channel (3), and the plasma arc gas powder channel forms a rear gas powder and plasma mixing zone near the rear gas powder channel (8).

7. An anode nozzle with a powder feeding channel according to claim 6, characterized in that, A gas-powder pyrolysis zone is provided in front of the gas-powder and plasma mixing zone at the rear end.

8. An anode nozzle with a powder feeding channel according to claim 1, characterized in that, The extended nozzle (9) is made of graphite or metal.

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