Powder vacuum sintering furnace

Abstract

The utility model discloses a powder vacuum sintering furnace, which relates to the technical field of powder vacuum sintering furnaces, and comprises a vacuum sintering furnace body, a temperature control mechanism, a heat dissipation mechanism and a sealing cover, the vacuum sintering furnace body is communicated with the temperature control mechanism through a pipeline, and the heat dissipation mechanism is arranged on the vacuum sintering furnace body. A sealing cover is rotatably connected to the vacuum sintering furnace body, a sintering support is fixedly connected into the vacuum sintering furnace body, a magnet strip is fixedly arranged on the sintering support, and heating rings are evenly arranged on the inner wall of the vacuum sintering furnace body. The groove is formed in the inner wall of the sintering furnace, the exhaust holes are evenly formed in the groove so that the sealing cover can be conveniently opened in the completely-sealed environment, meanwhile, the exhaust holes can be completely matched with a mechanism on the sealing cover, safe sealing in the sintering process of the sintering furnace can be guaranteed, and the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder vacuum sintering furnaces, in particular to a powder vacuum sintering furnace. Background Art

[0002] A powder vacuum sintering furnace is a device that heats and sinters metal powder into a mold. The temperature inside the furnace is about one thousand degrees. The metal powder in the furnace is sintered and molded into a mold. After sintering, it is cooled and demolded to obtain a completed metal workpiece. During the sintering process, both ends of the furnace body are tightly covered by sealing covers to ensure the vacuum inside the entire furnace body and the efficiency of the sintering process. Traditional sintering furnaces only use rubber strips for sealing, which cannot ensure a completely vacuum and sealed environment.

[0003] The sealing covers at both ends of the existing vacuum sintering furnace cannot ensure a complete vacuum and sealed environment. For example, the powder vacuum sintering furnace disclosed with publication number CN219551185U includes a base, a sintering furnace body is provided on the top of the base, and side frames are provided at the four corners of the inner corner of the sintering furnace body. The inner furnace body is movably installed between the four side frames, and a furnace cover is movably installed on one side of the sintering furnace body. This scheme is through providing an adjustment crank, which is held and rotated. After the adjustment crank is rotated, the first bevel gear is driven to rotate, and after the second bevel gear is rotated, the lead screw is driven to rotate. When the lead screw rotates, the movable sleeve is driven to rotate linearly outward along the axial direction of the lead screw. When the movable sleeve moves, it drives the inner furnace body to slide out of the sintering furnace body, which is convenient for maintenance of the inner furnace body. However, sealing only by a sealing ring cannot ensure normal opening and closing of the door, and the vacuum environment in the furnace body makes it difficult to open and close the door.

[0004] Therefore, it is necessary to invent a powder vacuum sintering furnace to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a powder vacuum sintering furnace to solve the problems in the art that the powder vacuum sintering furnace has poor sealing performance during the sintering process and the cover door is difficult to open after the sintering is completed.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a powder vacuum sintering furnace, comprising a vacuum sintering furnace body, a temperature control mechanism, a heat dissipation mechanism and a sealing cover, wherein the vacuum sintering furnace body and the temperature control mechanism are connected by a pipeline, a heat dissipation mechanism is provided on the vacuum sintering furnace body, a sealing cover is rotatably connected to the vacuum sintering furnace body, a sintering bracket is fixedly connected to the vacuum sintering furnace body, a magnet bar is fixedly provided on the sintering bracket, and heating rings are evenly provided on the inner wall of the vacuum sintering furnace body.

[0007] Preferably, a rubber groove is provided at the opening of the vacuum sintering furnace body, and exhaust holes are evenly provided in the rubber groove.

[0008] Preferably, a telescopic rod is provided on the sealing cover to connect with the sealing column, a rubber strip is fixedly connected to the sealing column, protrusions are evenly provided on the rubber strip, the positions of the protrusions correspond to the positions of the exhaust holes, and the diameters of the protrusions match the diameters of the exhaust holes.

[0009] Preferably, the sealing column is further fixedly connected to a magnetic block, which is a rectangular block and has a height that is adapted to the height of the magnet bar.

[0010] Preferably, the sealing covers can be arranged at the two ends of the vacuum sintering furnace body, and the structures of the two sealing covers are exactly the same.

[0011] Preferably, the sintering bracket is fixedly arranged in the middle of the bottom of the vacuum sintering furnace body, the sintering bracket is equidistant from the two ports of the vacuum sintering furnace body, and the sintering bracket is rectangular.

[0012] Preferably, the magnet bar is fixedly connected to the bottom surface of the sintering bracket and extends 5-10 cm from the surface of the sintering bracket. When the sealing cover is rotated and closed, the magnetic block and the magnet bar are tightly adsorbed.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. The utility model provides a groove on the inner wall of the sintering furnace and evenly provides exhaust holes in the groove to facilitate opening the sealing cover in a completely sealed environment. At the same time, the exhaust holes can completely match the mechanism on the sealing cover, which can also ensure safe sealing during the sintering process of the sintering furnace and improve the sealing performance.

[0015] 2. The utility model provides grooves and exhaust holes corresponding to the sealing mechanism of the sealing cover at the junction of both ends of the sintering furnace body and the sealing cover, so as to realize the adsorption of the magnetic block and the magnetic strip when closing the sealing cover, drive the extension of the telescopic rod, and card the rubber strip and the protrusion into the rubber groove and the exhaust hole accordingly, thereby completing the sealing of the entire furnace body, making the sintering process more efficient, and the design of the exhaust hole also makes it easy to open the sealing cover, and the complete vacuum environment in the furnace body will not make it difficult to open the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the heat dissipation mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the vacuum sintering furnace body of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the telescopic rod of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the rubber groove of the utility model.

[0021] Description of reference numerals:

[0022] 1. Vacuum sintering furnace body; 101. Rubber groove; 102. Exhaust hole; 2. Temperature control mechanism; 3. Heat dissipation mechanism; 4. Sealing cover; 401. Sealing column; 402. Rubber strip; 403. Protrusion; 404. Magnetic block; 405. Telescopic rod; 5. Sintering bracket; 6. Magnet strip; 7. Heating ring. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] The utility model provides Figure 1-3 The powder vacuum sintering furnace shown includes a vacuum sintering furnace body 1, a temperature control mechanism 2, a heat dissipation mechanism 3 and a sealing cover 4. The vacuum sintering furnace body 1 and the temperature control mechanism 2 are connected by a pipeline. The heat dissipation mechanism 3 is provided on the vacuum sintering furnace body 1. The sealing cover 4 is rotatably connected to the vacuum sintering furnace body 1. A sintering bracket 5 is fixedly connected to the vacuum sintering furnace body 1. A magnet bar 6 is fixedly provided on the sintering bracket 5. Heating rings 7 are evenly provided on the inner wall of the vacuum sintering furnace body 1.

[0025] The entire vacuum sintering furnace body 1 is heated by evenly installed heating rings 7 to heat the metal powder mold on the sintering bracket 5 until the metal powder in the mold is completely sintered into shape. The sealing covers 4 on both sides of the vacuum sintering furnace body 1 are used to seal the vacuum sintering furnace body 1 during the sintering process to ensure efficient and smooth sintering.

[0026] A rubber groove 101 is provided at the opening of the vacuum sintering furnace body 1, and exhaust holes 102 are evenly provided in the rubber groove 101. A telescopic rod 405 is provided on the sealing cover 4 to be connected to the sealing column 401. A rubber strip 402 is fixedly connected to the sealing column 401, and protrusions 403 are evenly provided on the rubber strip 402. The position of the protrusion 403 corresponds to the position of the exhaust hole 102, and the diameter of the protrusion 403 matches the diameter of the exhaust hole 102. A magnetic block 404 is also fixedly connected to the sealing column 401. The magnetic block 404 is a rectangular block, and its setting height is adapted to the height of the magnet bar 6.

[0027] A series of sealing settings on the sealing cover 4 can accurately adsorb the magnetic block 404 onto the magnet bar 6 when the sealing cover 4 is closed to the vacuum sintering furnace body 1, bring the rubber strip 402 and the protrusion 403 into the rubber groove 101 and the exhaust hole 102, and seal the exhaust hole 102 to form a completely sealed state during the sintering state.

[0028] The sealing cover 4 can be set at the two ends of the vacuum sintering furnace body 1, and the structures of the two sealing covers 4 are exactly the same. The sintering bracket 5 is fixedly set in the middle of the bottom of the vacuum sintering furnace body 1. The sintering bracket 5 is equidistant from the two ports of the vacuum sintering furnace body 1, and the sintering bracket 5 is rectangular. The magnet bar 6 is fixedly connected to the bottom surface of the sintering bracket 5 and extends 5-10 cm from the surface of the sintering bracket 5. When the sealing cover 4 is rotated to close, the magnetic block 404 and the magnet bar 6 are adsorbed and pressed tightly.

[0029] When the sealing cover 4 is closed, the entire vacuum sintering furnace body 1 is sealed, ensuring the sealing of the entire sintering process and improving the sintering efficiency.

[0030] Working principle of this utility model:

[0031] Refer to the instruction manual Figure 1-3 When using the utility model, first, when using the vacuum sintering furnace body 1, the metal powder to be sintered is placed in the mold, placed on the sintering bracket 5, the sealing cover 4 is closed, and the temperature control mechanism 2 is started to perform heating and sintering operations;

[0032] Refer to the instruction manual Figure 3-5 When using the utility model, the sealing cover 4 is closed so that the magnetic block 404 is slowly approached to the magnet bar 6 and finally adsorbed. At the moment when the magnetic block 404 and the magnet bar 6 are adsorbed and tightly attached, the sealing column 401 is driven toward the magnet bar 6, and the rubber strip 402 and the protrusion 403 are just stuck in the rubber groove 101 and the exhaust hole 102, ensuring the complete sealing state of the entire vacuum sintering furnace body 1, and no further operation is required, which is more convenient and saves locking time.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder vacuum sintering furnace, characterized in that: The invention comprises a vacuum sintering furnace body (1), a temperature control mechanism (2), a heat dissipation mechanism (3) and a sealing cover (4), wherein the vacuum sintering furnace body (1) and the temperature control mechanism (2) are connected via a pipeline, the heat dissipation mechanism (3) is provided on the vacuum sintering furnace body (1), the sealing cover (4) is rotatably connected to the vacuum sintering furnace body (1), a sintering bracket (5) is fixedly connected to the inside of the vacuum sintering furnace body (1), a magnet bar (6) is fixedly provided on the sintering bracket (5), and a heating ring (7) is evenly provided on the inner wall of the vacuum sintering furnace body (1).

2. A powder vacuum sintering furnace according to claim 1, characterized in that: A rubber groove (101) is provided at the opening of the vacuum sintering furnace body (1), and exhaust holes (102) are evenly provided in the rubber groove (101).

3. The powder vacuum sintering furnace according to claim 1, characterized in that: The sealing cover (4) is provided with a telescopic rod (405) connected to the sealing column (401), the sealing column (401) is fixedly connected to a rubber strip (402), and protrusions (403) are evenly provided on the rubber strip (402), the position of the protrusions (403) corresponds to the position of the exhaust hole (102), and the diameter of the protrusions (403) matches the diameter of the exhaust hole (102).

4. A powder vacuum sintering furnace according to claim 3, characterized in that: The sealing column (401) is also fixedly connected to a magnetic block (404), which is a rectangular block and has a height that is adapted to the height of the magnet bar (6).

5. The powder vacuum sintering furnace according to claim 3, characterized in that: The sealing covers (4) can be arranged at two ends of the vacuum sintering furnace body (1), and the structures of the two sealing covers (4) are completely the same.

6. The powder vacuum sintering furnace according to claim 1, characterized in that: The sintering bracket (5) is fixedly arranged in the middle of the bottom of the vacuum sintering furnace body (1), the distance between the sintering bracket (5) and the two ports of the vacuum sintering furnace body (1) is equal, and the sintering bracket (5) is rectangular.

7. The powder vacuum sintering furnace according to claim 3, characterized in that: The magnet strip (6) is fixedly connected to the bottom surface of the sintering bracket (5) and extends 5-10 cm from the surface of the sintering bracket (5). When the sealing cover (4) is rotated and closed, the magnetic block (404) and the magnet strip (6) are tightly attached to each other.

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