Gas atomization device

Abstract

The utility model discloses a gas atomization device, which comprises a collecting container, a gas supply device and a sucking pump, and is characterized in that the collecting container is respectively communicated with a heating furnace, a gas supply device and a sucking pump; the collecting container is provided with a gas blowing nozzle, and the gas blowing nozzle comprises a connector and a gas mist nozzle. According to the utility model, inert gas is blown to the tin material output by the feeding pipeline through the gas blowing nozzle, so that the tin material in a molten state is atomized and blown to form liquid drops, and small-particle tin powder is formed after the liquid drops are cooled in the collecting container, so that small-component tin powder for experiments can be quickly collected, and the experiment efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of metal powder preparation equipment, specifically to a gas atomization device. Background Technology

[0002] Solder paste is a paste-like mixture made by mixing solder powder, flux, and other surfactants, thixotropic agents, etc. It is mainly used in the SMT industry for soldering electronic components such as resistors, capacitors, and ICs on PCB surfaces. When researching new alloy formulations in the laboratory, it is necessary to prepare them into solder paste and conduct multiple sets of experiments to compare specific performance through the experimental results.

[0003] Currently, before mixing solder paste, the laboratory needs to prepare a small amount of tin powder for experiments (e.g., about 50g). However, the tin blocks prepared by manually grinding with a file are larger in size, the preparation process is time-consuming and laborious, and the granular tin powder is easily oxidized by the air, which can lead to large deviations in the experimental results. Utility Model Content

[0004] The purpose of this invention is to provide a gas atomization device to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:

[0006] A collection container, which is connected to a heating furnace, a gas supply device and a vacuum pump;

[0007] The collection container is equipped with a gas nozzle, which includes a connector and an atomizing nozzle, and is used to blow gas to atomize the material.

[0008] As a further description of the above technical solution, the collection container is provided with a collection chamber inside, and the material of the collection container is any one of ceramic, stainless steel and titanium alloy.

[0009] As a further description of the above technical solution, a feed inlet is provided on one side of the top of the collection container, and the heating furnace is connected to the feed inlet through a feeding pipe.

[0010] As a further description of the above technical solution, a heating device is provided outside the feeding pipe, which is used to keep the material in the feeding pipe warm.

[0011] As a further description of the above technical solution, the heating device adopts a heat exchanger, and the heating device is provided with 2-4 sets.

[0012] As a further description of the above technical solution, an air inlet is provided on the other side of the top of the collection container, and the air supply device is connected to the air inlet through a gas nozzle.

[0013] As a further description of the above technical solution, the connector is detachably installed on the air inlet, and the aerosol nozzle and the bottom of the connector are detachably connected.

[0014] As a further description of the above technical solution, the connector is provided with a regulating valve, which is used to regulate the gas flow rate.

[0015] As a further description of the above technical solution, the air outlet of the aerosol nozzle faces the outlet of the feeding pipe, and the air jet angle of the aerosol nozzle is 90-120 degrees.

[0016] As a further description of the above technical solution, an air extraction port is provided on one side of the bottom of the collection container, and the air extraction pump is connected to the air extraction port through an air extraction pipe.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention uses a gas nozzle to blow inert gas onto the molten tin material output from the feeding pipe, atomizing and dispersing the molten tin material into droplets. After cooling in the collection container, these droplets form small tin powder particles, allowing for the rapid collection of small quantities of tin powder for experiments, thus effectively improving experimental efficiency.

[0019] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the gas atomizing device of this utility model;

[0021] Figure 2 This is a cross-sectional schematic diagram of the gas atomizing device of this utility model.

[0022] Figure label:

[0023] 1. Collection container; 11. Collection chamber; 12. Feed inlet; 13. Air inlet; 14. Air extraction port; 2. Heating furnace; 3. Air supply device; 4. Air pump; 5. Gas nozzle; 51. Connector; 52. Aerosol nozzle; 53. Regulating valve; 6. Heating device; 7. Feeding pipe; 8. Air extraction pipe. Detailed Implementation

[0024] 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.

[0025] like Figures 1-2As shown, in one embodiment, an atomizing device includes: a collection container 1, which is connected to a heating furnace 2, an air supply device 3 and an air pump 4.

[0026] The heating furnace 2 is used to heat the material (in this application, it is a tin solder alloy, such as tin-silver-copper SAC305 alloy, tin-bismuth alloy, tin-antimony alloy, etc., and the temperature of the feeding pipe 7 needs to be between 250-350°C to ensure that the tin solder alloy is in a molten state); the gas supply device 3 (in this application, it can be a nitrogen tank, etc.) is used to continuously supply inert gas (nitrogen, helium, etc.); and the vacuum pump 4 is used to evacuate the air inside the collection container 1 to prevent the dripping material from oxidizing.

[0027] Specifically, the collection container 1 is provided with a collection chamber 11 inside. The material of the collection container 1 is any one of ceramic, stainless steel and titanium alloy. It can withstand the high temperature generated during the gas atomization process without deformation or damage, providing a stable and reliable collection environment for the collection of tin powder. It can be selected according to specific production needs, cost budget and usage environment.

[0028] Furthermore, the collection container 1 is equipped with a gas nozzle 5 for blowing gas to atomize the material, so that the molten tin can be atomized and blown into droplets, and then cooled in the collection container 1 to form small tin powder particles.

[0029] Please continue reading. Figures 1-2 In this embodiment, a feed inlet 12 is provided on one side of the top of the collection container 1, and the heating furnace 2 is connected to the feed inlet 12 through the feed pipe 7, so that the material can be heated and continuously transported into the collection container 1 through the feed pipe 7.

[0030] It should be explained in detail that a heating device 6 is installed outside the feeding pipe 7. The heating device 6 is used to keep the material in the feeding pipe 7 warm. The heating device 6 can be a resistance heating heat exchanger or an induction heating heat exchanger, etc. By adjusting the current or magnetic field, the heating power can be controlled relatively precisely, thereby controlling the insulation temperature, so that the material in the feeding pipe 7 is kept stable within the melting range of 300-350℃. Specifically, there are 2-4 sets of heating devices 6.

[0031] Furthermore, an air inlet 13 is provided on the other side of the top of the collection container 1, and the air supply device 3 is connected to the air inlet 13 through the gas nozzle 5, so that inert gas can be continuously delivered into the collection container 1 and blown onto the dripping material.

[0032] Furthermore, an air extraction port 14 is provided on one side of the bottom of the collection container 1, and the air pump 4 is connected to the air extraction port 14 through the air extraction pipe 8, which can continuously extract air and inert gas from the collection container 1.

[0033] Please continue reading. Figures 1-2 In this embodiment, the gas nozzle 5 includes a connector 51 and an aerosol nozzle 52. The connector 51 is detachably mounted on the air inlet 13, while the aerosol nozzle 52 is detachably connected to the bottom of the connector 51. The aerosol nozzles 52 are symmetrically arranged on the outside of the outlet of the feeding pipe 7, so that the material flowing out of the feeding pipe 7 is blown into droplets and then drips. In addition, a regulating valve 53 is provided inside the connector 51 to control the flow rate by changing the cross-sectional area of ​​the flow channel.

[0034] Specifically, the aerosol nozzle 52 can be a single-hole nozzle or a multi-hole nozzle: a single-hole nozzle consists of a small circular or elliptical hole, from which nitrogen gas is ejected, forming a concentrated airflow that can generate a large impact force to disperse the molten solder into larger droplets; a multi-hole nozzle has multiple small holes evenly distributed at the nozzle head, from which the ejected nitrogen gas forms multiple airflows, which can more evenly disperse the molten solder and make the solder powder particles smaller; at the same time, the outlet of the aerosol nozzle 52 faces the outlet of the feeding pipe 7, and the jet angle of the aerosol nozzle 52 is 90-120 degrees.

[0035] Working principle: The vacuum pump 4 is started to continuously extract air from the collection container 1, making the collection container 1 a vacuum state; then the heating furnace 2 is started to heat the tin block in the heating furnace 2 to a molten state, and then it is transported to the collection container 1 through the feeding pipe 7, and the feeding pipe 7 is kept warm by the heating device 6; then the gas nozzle 5 is opened, so that the nitrogen in the gas supply device 3 is continuously blown out from the aerosol nozzle 52, so that the molten tin is blown into droplets, and then cooled and scattered to the bottom of the collection container 1 to form small tin powder particles.

[0036] Through the above technical solution, this application can quickly collect small amounts of tin powder for experiments, effectively improving experimental efficiency.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gas atomizing device, characterized in that, include: A collection container (1) is connected to a heating furnace (2), a gas supply device (3), and a vacuum pump (4); The collection container (1) is equipped with a gas nozzle (5), which includes a connector (51) and an atomizer (52) for blowing gas to atomize the material.

2. The gas atomizing device according to claim 1, characterized in that, The collection container (1) is provided with a collection chamber (11) inside. The material of the collection container (1) is any one of ceramic, stainless steel and titanium alloy.

3. The gas atomizing device according to claim 1, characterized in that, The collection container (1) has a feed inlet (12) on one side of its top, and the heating furnace (2) is connected to the feed inlet (12) through the feed pipe (7).

4. The gas atomizing device according to claim 3, characterized in that, A heating device (6) is provided outside the feeding pipe (7), and the heating device (6) is used to keep the material in the feeding pipe (7) warm.

5. The gas atomizing device according to claim 4, characterized in that, The heating device (6) adopts a heat exchanger, and the heating device (6) is provided with 2-4 sets.

6. The gas atomizing device according to claim 1, characterized in that, An air inlet (13) is provided on the other side of the top of the collection container (1), and the air supply device (3) is connected to the air inlet (13) through a gas nozzle (5).

7. The gas atomizing device according to claim 1, characterized in that, The connector (51) is detachably mounted on the air inlet (13), and the aerosol nozzle (52) is detachably connected to the bottom of the connector (51).

8. The gas atomizing device according to claim 7, characterized in that, The connector (51) is equipped with a regulating valve (53), which is used to regulate the gas flow rate.

9. The gas atomizing device according to claim 7, characterized in that, The air outlet of the aerosol nozzle (52) faces the outlet of the feeding pipe (7), and the air jet angle of the aerosol nozzle (52) is 90-120 degrees.

10. The gas atomizing device according to claim 1, characterized in that, The collection container (1) has an air extraction port (14) on one side of its bottom, and the air extraction pump (4) is connected to the air extraction port (14) through the air extraction pipe (8).

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