Alloy vacuum furnace

Abstract

The utility model relates to the technical field of heating furnaces, in particular to an alloy vacuum furnace which comprises a furnace body and a heating mechanism arranged in the furnace body, the heating mechanism comprises a plurality of annular heating pieces, the annular heating pieces are divided into top heating pieces, bottom heating pieces and a plurality of middle heating pieces, the bottom heating pieces are fixedly connected with the inner wall of the furnace body, and the middle heating pieces are fixedly connected with the furnace body. The top heating piece and the middle heating piece move in the height direction of the furnace body through a vertical adjusting mechanism, the vertical adjusting mechanism comprises a screw rod and a connecting block, the connecting block is fixedly arranged on the periphery of the top heating piece, the screw rod is arranged in the height direction of the furnace body, and the upper end of the screw rod is in threaded connection with the connecting block; the lower end of the screw penetrates through the furnace body and is fixedly connected with an output shaft of a transmission motor arranged at the bottom of the furnace body. According to the alloy vacuum furnace, by adjusting the heating piece, the heating range of the heating piece is matched with the height of alloy contained in the crucible, heat energy of the heating piece is concentrated to heat the alloy, and the heat energy utilization rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace technology, and in particular to an alloy vacuum furnace. Background Technology

[0002] In modern industry, alloy materials have extremely wide applications, playing a crucial role in everything from high-performance structural components in aerospace to precision components in the electronics industry. Heating is a critical step in the preparation and processing of alloys. Traditional heating methods often suffer from uneven heat distribution when processing alloys within a crucible.

[0003] In existing heating equipment, most heating devices lack precise control over the heating range. The heating range of the heating element is fixed and cannot be adjusted according to the actual height of the alloy inside the crucible. This results in a significant amount of heat being lost to the surrounding environment or being heated in areas that do not require heating, such as the air above the crucible or the supporting structure below. This waste of heat not only increases energy costs but also prolongs heating time and reduces production efficiency because it prevents the alloy from being heated efficiently and in a concentrated manner. Utility Model Content

[0004] To address the problem that existing heating furnaces cannot adjust their heating range according to the actual amount of alloy to be heated, resulting in energy waste, this invention provides an alloy vacuum furnace. By adjusting the heating element, the heating range of the heating element is made compatible with the height of the alloy contained in the crucible, concentrating the heat energy of the heating element to heat the alloy and improving the heat energy utilization rate.

[0005] This invention provides an alloy vacuum furnace, comprising a furnace body and a heating mechanism disposed inside the furnace body. The heating mechanism includes several annular heating elements arranged along the height of the furnace body. The annular heating elements are divided into a top heating element, a bottom heating element, and several middle heating elements. The bottom heating elements are fixedly connected to the inner wall of the furnace body. The top and middle heating elements are movable along the height of the furnace body via a vertical adjustment mechanism. The alloy contained in the crucible is concentratedly heated by the height-adjustable heating elements to improve thermal energy utilization.

[0006] Furthermore, the vertical adjustment mechanism includes a screw and a connecting block. The connecting block is fixedly installed around the top heating element, and the screw is positioned along the height of the furnace body. The upper end of the screw is threadedly connected to the connecting block, and the lower end of the screw passes through the furnace body and is fixedly connected to the output shaft of a drive motor located at the bottom of the furnace body. The height of the top heating element is adjusted through the cooperation of the screw and the connecting block.

[0007] Furthermore, the vertical adjustment mechanism also includes springs disposed between adjacent annular heating elements, with at least three springs arranged circumferentially between adjacent annular heating elements. The circumferentially arranged springs between adjacent annular heating elements enable automatic and even distribution of the several annular heating elements.

[0008] Furthermore, the vertical adjustment mechanism also includes a guide rod, which passes through the top heating element and several middle heating elements in sequence and is fixed to the bottom heating element. A spring is fitted onto the guide rod. The guide rod guides the several annular heating elements, ensuring that the annular heating elements move vertically.

[0009] Furthermore, a limiting mechanism is provided between adjacent annular heating elements to limit the distance between them. The minimum and maximum distance between adjacent annular heating elements can be adjusted by the limiting mechanism.

[0010] Furthermore, the limiting mechanism includes a connecting plate and a connecting unit. The connecting plate is disposed around the annular heating element, and the connecting unit is disposed between the connecting plates of adjacent annular heating elements.

[0011] Furthermore, the connecting unit includes a matching internal threaded sleeve and a threaded rod. The connecting plates of adjacent annular heating elements are respectively provided with adjustment holes for sliding connection of the internal threaded sleeve and positioning holes for fixed connection of the threaded rod. The upper and lower ends of the threaded sleeve are respectively provided with upper limit plates and lower limit plates.

[0012] Furthermore, a furnace cover is provided on top of the furnace body, and the bottom heating element is fixedly connected to the inner wall of the furnace body via support plates symmetrically arranged on both sides. The bottom heating element is fixedly connected to the furnace body by the support plates.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model provides an alloy vacuum furnace. By adjusting the top heating element and the middle heating element, the heating range of the heating mechanism can be adjusted so that the heating range of the heating mechanism is adapted to the height of the alloy contained in the crucible. This allows the heat energy to be concentrated on heating the alloy, thereby improving the heat energy utilization rate and reducing waste. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a diagram of the external structure of a vacuum furnace;

[0017] Figure 2 This is a diagram of the internal structure of a vacuum furnace;

[0018] Figure 3 This is a structural diagram of the heating mechanism;

[0019] In the diagram: 1. Furnace body, 2. Top heating element, 3. Bottom heating element, 4. Middle heating element, 5. Screw, 6. Connecting block, 7. Drive motor, 8. Spring, 9. Guide rod, 10. Connecting plate, 11. Internal threaded sleeve, 12. Threaded rod, 13. Upper limit plate, 14. Lower limit plate, 15. Furnace cover, 16. Support plate. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] To better adapt the heating range of the heating mechanism to the height of the alloy contained in the crucible, an alloy vacuum furnace is designed, such as... Figure 1 As shown, the furnace includes a furnace body 1 and a heating mechanism disposed inside the furnace body 1. A furnace cover 15 is disposed on top of the furnace body 1. The furnace body 1 is connected to a vacuum system. When the furnace cover 15 seals the opening of the furnace body 1, the gas inside the furnace body 1 can be extracted through the vacuum system. A crucible filled with alloy is placed inside the heating mechanism, and the alloy is heated by the heating mechanism.

[0022] The core technology of this solution lies in the fact that the heating mechanism can be a high-frequency induction coil or a graphite electrode, or other equipment used to heat the alloy. Preferably, the heating mechanism includes several annular heating elements, which are heating rings with annular supports, and these annular heating elements are arranged along the height of the furnace body 1. In this case, a crucible filled with the alloy is placed inside the several annular heating elements, and the alloy can be heated by the annular heating elements.

[0023] Specifically, the annular heating element consists of a top heating element 2, a bottom heating element 3, and several middle heating elements 4. The bottom heating element 3 is fixedly connected to the inner wall of the furnace body 1. The top heating element 2 and the middle heating elements 4 move along the height direction of the furnace body 1 via a vertical adjustment mechanism. The bottom heating element 3 is fixedly connected to the inner wall of the furnace body 1 via support plates 16 symmetrically arranged on both sides. The heights of the top heating element 2 and the middle heating elements 4 are adjustable. By adjusting the top heating element 2 and the middle heating elements 4, the heating range of multiple annular heating elements can be adjusted, so that the heating range of the annular heating elements is adapted to the filling height of the alloy in the crucible. This allows the heat energy of the annular heating elements to be concentrated to heat the alloy, improving the heat energy utilization rate.

[0024] like Figure 2As shown, specifically, the vertical adjustment mechanism includes a screw 5 and a connecting block 6. The connecting block 6 is fixedly installed around the top heating element 2. The screw 5 is installed along the height direction of the furnace body 1. The upper end of the screw 5 is threadedly connected to the connecting block 6, and the lower end of the screw 5 passes through the furnace body 1 and is fixedly connected to the output shaft of the drive motor 7 installed at the bottom of the furnace body 1. The vertical adjustment mechanism also includes springs 8 installed between adjacent annular heating elements. At least three springs 8 are circumferentially arranged between adjacent annular heating elements. The drive motor 7 drives the screw 5 to rotate, and the height of the top heating element 2 is adjusted through the cooperation of the screw 5 and the connecting block 6. The remaining annular heating elements can be automatically and evenly distributed under the action of the springs 8.

[0025] To ensure the stability of vertical adjustment, the vertical adjustment mechanism also includes a guide rod 9. The guide rod 9 passes through the top heating element 2 and several middle heating elements 4 in sequence and is fixed to the bottom heating element 3. A spring 8 is fitted onto the guide rod 9. The guide rod 9 guides the vertical movement of the annular heating element and the extension and retraction of the spring 8.

[0026] like Figure 3 As shown, a limiting mechanism is also provided between adjacent annular heating elements to limit the distance between them. Specifically, the limiting mechanism includes a connecting plate 10 and a connecting unit. The connecting plate 10 is disposed around the annular heating element, and the connecting unit is disposed between the connecting plates 10 of adjacent annular heating elements.

[0027] The connecting unit includes a matching internal threaded sleeve 11 and a threaded rod 12. The connecting plate 10 of the adjacent annular heating element is provided with an adjustment hole for sliding connection of the internal threaded sleeve 11 and a positioning hole for fixed connection of the threaded rod 12. The upper and lower ends of the threaded sleeve are respectively provided with an upper limit plate 13 and a lower limit plate 14.

[0028] The spacing between two adjacent annular heating elements can be controlled by the upper limit plate 13 and the lower limit plate 14. The height of the internal threaded sleeve 11 can be adjusted by rotating the internal threaded sleeve 11, thereby adjusting the minimum and maximum spacing between the two adjacent annular heating elements.

[0029] The above description is illustrative only and not restrictive of this utility model. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, and all such modifications, variations or equivalents will fall within the protection scope of this utility model.

Claims

1. An alloy vacuum furnace, comprising a furnace body (1) and a heating mechanism disposed inside the furnace body (1), characterized in that: The heating mechanism includes several annular heating elements, which are arranged along the height direction of the furnace body (1). The annular heating elements are divided into a top heating element (2), a bottom heating element (3), and several middle heating elements (4). The bottom heating element (3) is fixedly connected to the inner wall of the furnace body (1). The top heating element (2) and the middle heating elements (4) move along the height direction of the furnace body (1) through a vertical adjustment mechanism.

2. The alloy vacuum furnace according to claim 1, characterized in that: The vertical adjustment mechanism includes a screw (5) and a connecting block (6). The connecting block (6) is fixedly installed around the top heating element (2). The screw (5) is installed along the height direction of the furnace body (1). The upper end of the screw (5) is threadedly connected to the connecting block (6). The lower end of the screw (5) passes through the furnace body (1) and is fixedly connected to the output shaft of the drive motor (7) installed at the bottom of the furnace body (1).

3. The alloy vacuum furnace according to claim 2, characterized in that: The vertical adjustment mechanism also includes springs (8) disposed between adjacent annular heating elements, with at least three springs (8) arranged circumferentially between adjacent annular heating elements.

4. The alloy vacuum furnace according to claim 3, characterized in that: The vertical adjustment mechanism also includes a guide rod (9), which passes through the top heating element (2) and several middle heating elements (4) in sequence and is fixed on the bottom heating element (3). The spring (8) is fitted on the guide rod (9).

5. An alloy vacuum furnace according to claim 3, characterized in that: A limiting mechanism is also provided between adjacent annular heating elements to limit the distance between adjacent annular heating elements.

6. An alloy vacuum furnace according to claim 5, characterized in that: The limiting mechanism includes a connecting plate (10) and a connecting unit. The connecting plate (10) is disposed around the annular heating element, and the connecting unit is disposed between the connecting plates (10) of adjacent annular heating elements.

7. An alloy vacuum furnace according to claim 6, characterized in that: The connecting unit includes a matching internal threaded sleeve (11) and a threaded rod (12). The connecting plate (10) adjacent to the annular heating element is provided with an adjustment hole for sliding connection of the internal threaded sleeve (11) and a positioning hole for fixed connection of the threaded rod (12). The upper and lower ends of the threaded sleeve are respectively provided with an upper limit plate (13) and a lower limit plate (14).

8. An alloy vacuum furnace according to claim 1, characterized in that: A furnace cover (15) is provided on the top of the furnace body (1), and the bottom heating element (3) is fixedly connected to the inner wall of the furnace body (1) by a bracket plate (16) symmetrically arranged on both sides.

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