Device for eliminating internal stress of silver-coated copper powder

Abstract

The invention discloses a device for eliminating the internal stress of silver-coated copper powder, the device for eliminating the internal stress of the silver-coated copper powder comprises a device body and a cooling mechanism, a moving part, heating parts and an air supply part are arranged in the device body, the device body extends along a first direction, the plurality of heating parts are sequentially arranged on the moving part along the first direction, and the air supply part is arranged on the moving part. An inlet is formed in the first end of the device body and used for allowing a loader to enter, the loader moves along the moving part, the air supply part is located on one side of the moving part and used for driving the loader to rotate, the cooling mechanism is located at the second end of the device body and comprises a cooling tray and a cooling nozzle, and the air supply part is located on one side of the moving part and used for driving the loader to rotate. The cooling tray is used for bearing the loader, and the multiple cooling nozzles spray cooling working media to the loader for cooling. The device for eliminating the internal stress of the silver-coated copper powder has the advantages of reducing the internal stress of the silver-coated copper powder and saving energy.

Description

Technical Field

[0001] The invention relates to the technical field of silver powder processing, in particular to a device for eliminating internal stress of silver-coated copper powder. Background Art

[0002] Ideal silver-coated copper powder has always been the preferred alternative material for silver powder and is of great research and development value. However, composite materials have disadvantages such as low coverage and uneven coating, which lead to deterioration of antioxidant properties and reduction of electrical conductivity. At present, methods for preparing silver-coated copper powder have been reported. Among them, chemical plating has the characteristics of simple process and low preparation cost, and is considered to be the preferred method for preparing silver-coated copper powder. Composite powders inevitably produce stress and coating defects during ball milling, resulting in a decrease in electrical conductivity. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides a device for eliminating internal stress of silver-coated copper powder. The device for eliminating internal stress of silver-coated copper powder has the advantages of reducing internal stress of silver-coated copper powder and saving energy.

[0005] According to an embodiment of the present invention, the device for eliminating internal stress of silver-coated copper powder comprises a device body and a cooling mechanism, wherein a moving part, a heating part and an air supply part are arranged in the device body, the device body extends along a first direction, and a plurality of heating parts are arranged on the moving part in sequence along the first direction, an inlet is arranged at the first end of the device body for a carrier to enter, the carrier moves along the moving part, the air supply part is located on one side of the moving part to drive the carrier to rotate, and the cooling mechanism is located at the second end of the device body, the cooling mechanism comprises a cooling tray and a cooling nozzle, the cooling tray is used to support the carrier, and a plurality of cooling nozzles spray cooling medium to the carrier for cooling.

[0006] The device for eliminating internal stress of silver-coated copper powder according to the embodiment of the present invention has the advantages of reducing the internal stress of silver-coated copper powder and saving energy.

[0007] In some embodiments, the carrier includes a temperature-resistant container, a sliding seat and a driving member, the sliding seat is located below the temperature-resistant container and is slidably connected to the movable member, the temperature-resistant container is pivotally connected to the sliding seat, and the driving member is connected to the temperature-resistant container to drive the temperature-resistant container to rotate.

[0008] In some embodiments, the heat-resistant container is a cylinder, the top of the sliding seat has a recessed contact surface for constraining the heat-resistant container, and the sliding seat abuts against one end of the heat-resistant container away from the driving member to drive the heat-resistant container to move.

[0009] In some embodiments, the driving member includes a transmission rod and a transmission plate. One end of the transmission rod is connected to the temperature-resistant container, and a plurality of transmission plates are arranged on the other end of the transmission rod. The transmission plate drives the transmission rod to rotate under the blowing of the air delivery member.

[0010] In some embodiments, the air supply component includes an air supply pipeline and multiple air supply nozzles, the air supply nozzles correspond one-to-one to the heating component, the air supply nozzles are connected to the air supply pipeline, an air supply valve is arranged on the air supply pipeline, and the air supply valve corresponds to the air supply nozzles.

[0011] In some embodiments, a rotating rod is disposed at the bottom of the cooling tray, and the rotating rod is connected to the cooling tray to drive the cooling tray to rotate.

[0012] In some embodiments, a temperature sensor and a weight sensor are disposed on the cooling tray to detect the temperature and weight data of the carrier.

[0013] In some embodiments, the plurality of cooling nozzles are connected to a cold source via a pipeline, and the cooling nozzles are located above the cooling tray.

[0014] In some embodiments, the movable part includes a slide rail and a limit switch. The slide rail extends along the first direction and is slidably matched with the sliding seat. The heating element is mounted on the outer side of the slide rail for the carrier to pass through. The limit switch is located on the slide rail to detect the position of the carrier.

[0015] In some embodiments, a thermal insulation layer is disposed within the device body, and the thermal insulation layer is disposed around the moving part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of a device for eliminating internal stress of silver-coated copper powder according to an embodiment of the present invention.

[0017] Figure numerals: 1. device body; 2. temperature-resistant container; 3. cooling tray; 4. cooling nozzle; 5. driving member; 6. air supply pipeline; 7. air supply nozzle; 8. slide rail; 9. insulation layer; 10. heating member. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] According to the device for eliminating the internal stress of silver-coated copper powder according to the embodiment of the present invention, the device for eliminating the internal stress of silver-coated copper powder comprises a device body 1 and a cooling mechanism, a moving part, a heating part and an air supply part are arranged in the device body 1, the device body 1 extends along a first direction, a plurality of heating parts are arranged on the moving part in sequence along the first direction, an inlet is arranged at the first end of the device body 1 for a carrier to enter, the carrier moves along the moving part, the air supply part is located on one side of the moving part to drive the carrier to rotate, the cooling mechanism is located at the second end of the device body 1, the cooling mechanism comprises a cooling tray 3 and a cooling nozzle 4, the cooling tray 3 is used to support the carrier, and a plurality of cooling nozzles 4 spray cooling medium to the carrier for cooling. The device body 1 is provided with a plurality of heating parts, the temperature of each heating part can be set separately, so as to realize the effect of heating the carrier at multiple different temperatures to eliminate the stress between the silver plating layer and the copper powder, and improve the quality of the silver-coated copper powder, the moving part can make the plurality of carriers move in sequence along the first direction, and the plurality of containers are simultaneously subjected to temperature treatment at different stages, so as to improve the processing efficiency, and the cooling mechanism is used to slowly cool the container to realize the temperature control and save energy.

[0020] The device for eliminating internal stress of silver-coated copper powder according to the embodiment of the present invention has the advantages of reducing the internal stress of silver-coated copper powder and saving energy.

[0021] In some embodiments, the carrier includes a temperature-resistant container 2, a sliding seat and a driving member 5. The sliding seat is located below the temperature-resistant container 2 and is slidably connected to the moving member. The temperature-resistant container 2 is pivotally connected to the sliding seat. The driving member 5 is connected to the temperature-resistant container 2 to drive the temperature-resistant container 2 to rotate.

[0022] Specifically, the container can be made of ceramic material with good high temperature resistance. The sliding seat is used to drive the heat-resistant container 2 to move along the first direction. The heat-resistant container 2 can rotate on the sliding seat to prevent the silver-coated copper powder in the container from agglomerating. The driving member 5 drives the heat-resistant container 2 to rotate and can also heat the container evenly. The heat-resistant container 2 ensures the stability and safety of the carrier in a high temperature environment. The precise control of the driving member 5 makes the rotation of the heat-resistant container 2 more uniform, which is beneficial to the heat distribution during the heat treatment process.

[0023] In some embodiments, the heat-resistant container 2 is a cylinder, the top of the sliding seat has a recessed contact surface for constraining the heat-resistant container 2, and the sliding seat abuts against one end of the heat-resistant container 2 away from the driving member 5 to drive the heat-resistant container 2 to move.

[0024] Specifically, the cylindrical design of the temperature-resistant container 2 is conducive to the uniformity of the internal airflow and improves the heat treatment efficiency. The concave contact surface of the sliding seat can be made of wear-resistant material to reduce wear after long-term use. The contact between the cylinder and the arc-shaped concave contact surface of the sliding seat can prevent the temperature-resistant container 2 from slipping out of the sliding seat. A part of the sliding seat abuts against the cylinder to facilitate pushing the cylinder to move with the sliding seat. The use of the concave contact surface and the wear-resistant material prolongs the service life of the carrier.

[0025] In some embodiments, the driving member 5 includes a transmission rod and a transmission plate. One end of the transmission rod is connected to the temperature-resistant container 2, and multiple transmission plates are arranged on the other end of the transmission rod. The transmission plates drive the transmission rod to rotate under the blowing of the air delivery member.

[0026] Specifically, the transmission sheet can be a rectangular sheet or a fan blade, which is used to receive the airflow and drive the transmission rod to rotate under the impetus of the high-speed airflow. The transmission sheet is made of lightweight materials, which can realize the autonomous rotation of the temperature-resistant container 2. The air delivery member can adjust the rotation speed of the temperature-resistant container 2 by changing the air delivery speed.

[0027] In some embodiments, the air supply component includes an air supply pipeline 6 and multiple air supply nozzles 7, the air supply nozzles 7 correspond one-to-one to the heating components, the air supply nozzles 7 are connected to the air supply pipeline 6, an air supply valve is provided on the air supply pipeline 6, and the air supply valve corresponds to the air supply nozzles 7.

[0028] Specifically, the air supply valve can be a solenoid valve to achieve rapid response and precise control. Multiple air supply nozzles 7 can adjust the rotation speed of the temperature-resistant container 2 at the corresponding heating element, and the air supply valve controls the air supply speed of different air supply nozzles 7. The air supply pipeline 6 with adjustable flow makes the heat treatment process more flexible and adaptable to different process requirements. The use of the solenoid valve improves the control accuracy and reliability of the air supply system.

[0029] In some embodiments, a rotating rod is disposed at the bottom of the cooling tray 3 , and the rotating rod is connected to the cooling tray 3 to drive the cooling tray 3 to rotate.

[0030] Specifically, the rotating rod cooperates with the rotating motor to realize the automatic rotation of the cooling tray 3, thereby improving the cooling uniformity. The automatically rotating cooling tray 3 ensures the uniform cooling of the carrier during the cooling process, reduces the internal stress caused by uneven cooling, prolongs the life of the temperature-resistant container 2, and can also uniformly cool the silver-coated copper powder in the container.

[0031] In some embodiments, a temperature sensor and a weight sensor are disposed on the cooling tray 3 to detect the temperature and weight data of the carrier.

[0032] Specifically, the weight sensor can detect whether the cooling tray 3 is supported, and the temperature sensor is convenient for detecting the temperature of the temperature-resistant container 2. The temperature sensor and the weight sensor can be connected to the control system to achieve real-time monitoring and data recording. Real-time monitoring and data recording help to accurately control the heat treatment and cooling process and improve product quality.

[0033] In some embodiments, a plurality of cooling nozzles 4 are connected to a cold source through pipelines, and the cooling nozzles 4 are located above the cooling tray 3 .

[0034] Specifically, the cold source may be cold air, nitrogen, etc. The cooling nozzle 4 located above the cooling tray 3 may blow the cooling medium onto the temperature-resistant container 2 to improve the cooling effect.

[0035] In some embodiments, the moving part includes a slide rail 8 and a limit switch. The slide rail 8 extends along a first direction and is slidably matched with a sliding seat. The heating part is sleeved on the outside of the slide rail 8 for the carrier to penetrate. The limit switch is located on the slide rail 8 to detect the position of the carrier.

[0036] Specifically, the sliding seat and the slide rail 8 are slidably matched, the heating element can be a ring-shaped resistance wire or an induction heater, and the limit switch is arranged on the slide rail 8. When the carrier reaches the preset position, the limit switch is triggered to turn on the induction heater to heat the temperature-resistant container 2, which can heat more efficiently and save energy.

[0037] In some embodiments, a heat-insulating layer 9 is disposed in the device body 1 , and the heat-insulating layer 9 is disposed around the moving parts.

[0038] Specifically, the heat-insulating layer 9 can be filled in the device body 1 with materials such as asbestos and glass wool to reduce heat loss.

[0039] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A device for eliminating internal stress of silver-coated copper powder, characterized in that: include: A device body, wherein a moving part, a heating part and an air supply part are arranged in the device body, the device body extends along a first direction, a plurality of the heating parts are sequentially arranged on the moving part along the first direction, an inlet is arranged at a first end of the device body for a carrier to enter, the carrier moves along the moving part, and the air supply part is located at one side of the moving part to drive the carrier to rotate; A cooling mechanism is located at the second end of the device body, and includes a cooling tray and a cooling nozzle. The cooling tray is used to support the carrier, and a plurality of cooling nozzles spray cooling medium to the carrier for cooling.

2. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: The carrier includes a temperature-resistant container, a sliding seat and a driving member, wherein the sliding seat is located below the temperature-resistant container and is slidably connected to the moving member, the temperature-resistant container is pivotally connected to the sliding seat, and the driving member is connected to the temperature-resistant container to drive the temperature-resistant container to rotate.

3. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: The heat-resistant container is a cylinder, the top of the sliding seat has a concave contact surface for constraining the heat-resistant container, and the sliding seat abuts against one end of the heat-resistant container away from the driving member to drive the heat-resistant container to move.

4. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: The driving member includes a transmission rod and a transmission sheet. One end of the transmission rod is connected to the temperature-resistant container. A plurality of transmission sheets are arranged on the other end of the transmission rod. The transmission sheet drives the transmission rod to rotate under the blowing of the air delivery member.

5. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: The air supply component includes an air supply pipeline and a plurality of air supply nozzles, the air supply nozzles correspond to the heating components one by one, the air supply nozzles are connected to the air supply pipeline, an air supply valve is arranged on the air supply pipeline, and the air supply valve corresponds to the air supply nozzles.

6. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: A rotating rod is arranged at the bottom of the cooling tray, and the rotating rod is connected to the cooling tray to drive the cooling tray to rotate.

7. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: The cooling tray is provided with a temperature sensor and a weight sensor for detecting the temperature and weight data of the carrier.

8. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: The plurality of cooling nozzles are connected to a cold source through pipelines, and the cooling nozzles are located above the cooling tray.

9. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: The movable part includes a slide rail and a limit switch. The slide rail extends along the first direction and is slidably matched with the sliding seat. The heating part is sleeved on the outer side of the slide rail for the carrier to pass through. The limit switch is located on the slide rail to detect the position of the carrier.

10. The device for eliminating internal stress of silver-coated copper powder according to claim 1, characterized in that: A heat-insulating layer is arranged in the body of the device, and the heat-insulating layer is arranged around the moving part.

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