Vacuum furnace flow field uniformizing device

Abstract

The utility model relates to the technical field of vacuum furnaces, and discloses a vacuum furnace flow field uniformizing device which comprises a furnace body, mounting rings fixedly mounted on two sides of the outer end of the furnace body respectively, a furnace cover movably sleeved at the front end of the furnace body, a heating inner furnace arranged inside the furnace body, a base arranged at the lower end of the furnace body, and a controller arranged on one side of the surface of the outer end of the base. The system further comprises; according to the circulating structure, gas in the furnace is promoted to circularly flow through the fan and the circulating pipe, heat is effectively mixed and transferred, and the situation that the local temperature is too high or too low is avoided, so that materials are uniformly heated in the heating process, and the quality stability and consistency of products are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum furnace equipment technical field, concretely is a vacuum furnace flow field even device. BACKGROUND

[0002] In modern industrial production, vacuum furnaces are widely used in many fields, such as metal heat treatment, semiconductor material processing, special alloy manufacturing, etc. Its characteristics of heating treatment under high temperature and vacuum environment can meet the strict requirements of material performance and processing precision in many high-end product production processes.

[0003] However, the traditional vacuum furnace often has the problem of uneven flow field during operation. During the heating process, due to the complex flow state of the gas in the furnace, the heat distribution is difficult to be uniform, resulting in large temperature difference in different areas of the furnace. This will have a serious impact on some materials that require high uniformity of heating, such as precision electronic components, special alloys for aerospace, etc. Local temperature that is too high may cause excessive sintering, deformation or even damage of the material; while local temperature that is too low may cause insufficient heating of the material, which cannot achieve the expected performance indicators. These problems not only reduce the quality and yield of the product, but also increase the production cost and reduce the production efficiency.

[0004] In addition, the structural design of the traditional vacuum furnace also limits the improvement of its performance to some extent. For example, the connection between the furnace cover and the furnace body may not be tight enough, which cannot effectively guarantee the vacuum environment in the furnace, resulting in heat loss and the entry of external impurities, affecting the heating effect. At the same time, the support and limiting structure of the furnace body is not perfect enough, and under the action of heating and vibration, etc., the furnace body is easy to displace, which further affects the stability of the equipment and the accuracy of the heating. Moreover, the arrangement of the heating elements and the heat flow guiding method of the traditional vacuum furnace are not reasonable enough, which makes it difficult to effectively control the flow field in the furnace, and the temperature uniformity in the furnace is difficult to be guaranteed.

[0005] In order to solve the above problems, we propose a vacuum furnace flow field uniform device. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a vacuum furnace flow field uniform device to solve the above problems.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a vacuum furnace flow field uniform device, comprising a furnace body, the outer end of the furnace body is fixedly installed with a mounting ring on both sides, a furnace cover is movably sleeved at the front end of the furnace body, a heating inner furnace is arranged in the furnace body, a base is arranged at the lower end of the furnace body, a controller is arranged on one side of the outer end surface of the base, characterized in that, further comprising;

[0008] The circulation structure is arranged at the rear end of the furnace body and is used for improving the uniformity and consistency of the heating of the interior of the furnace body.

[0009] Preferably, the mounting block is fixedly installed on one side of the front end surface of the furnace body, and the connecting piece is fixedly installed on one side of the outer end surface of the furnace cover.

[0010] Preferably, the connecting seat is arranged around the lower end surface of the base, the fixing seat is fixedly installed on the upper end surface of the connecting seat, and the limiting piece is arranged on the upper end of the fixing seat.

[0011] Preferably, the limiting piece is triangular, the lower end of one corner of the limiting piece is movably connected to the inner upper end of the fixing seat, and the roller is arranged on the upper end of the other two corners of the limiting piece and is attached to the outer end of the mounting ring.

[0012] Preferably, the partition installation rod is arranged around the outer end surface of the heating inner furnace, the other end of the partition installation rod is fixedly connected to the inner wall surface of the furnace body, and the molybdenum wire heating wire is arranged on the outer end surface of the heating inner furnace.

[0013] Preferably, the connecting block is fixedly connected to the central rear end surface of the furnace body, the connecting block extends to the rear end interior of the furnace body, the dust screen is arranged on the front end of the connecting block, and the rotating motor is fixedly installed on the central rear end surface of the connecting block.

[0014] Preferably, the circulation structure is composed of a circulation pipe and a fan, the fan is arranged on the inner front end of the connecting block, the shaft of the fan is fixedly connected to the output end of the rotating motor, the circulation pipe is fixedly connected to the upper end of the rear end of the connecting block, and the other end of the circulation pipe extends to the upper end of the rear surface of the furnace body.

[0015] Compared with the prior art, the vacuum furnace flow field uniform device has the following beneficial effects:

[0016] The vacuum furnace flow field uniform device has the circulation structure, the fan and the circulation pipe promote the circulation flow of the gas in the furnace, effectively mix and transfer heat, avoid local temperature being too high or too low, the material is uniformly heated in the heating process, and therefore the quality stability and consistency of the product are significantly improved, for example, in the metal heat treatment process, the internal organization of the metal can be uniformly changed, the performance difference of the product caused by uneven heating is reduced, the defective rate is reduced, and strong guarantee is provided for producing high-quality products.

[0017] The furnace cover connection and sealing design of the device ensures that a relatively sealed space is formed inside the furnace body, greatly reducing heat loss, and the blocking and guiding effect of the partition installation rod outside the heating inner furnace on the heat flow improves the stability and efficiency of heating, in addition, the uniform flow field makes the heating process more efficient, avoids long-time heating due to insufficient local heating, and comprehensively considering these factors, the device effectively reduces energy consumption while ensuring product quality, improves production efficiency, saves production cost for enterprises, and improves economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a circulation structure schematic view of the utility model;

[0020] Figure 3 It is a furnace body structure schematic view of the utility model;

[0021] Figure 4 It is a heating inner furnace structure schematic view of the utility model.

[0022] In the drawing: 1, furnace body; 2, furnace cover; 3, mounting ring; 4, base; 5, fixed seat; 6, limiting piece; 7, roller; 8, heating inner furnace; 9, connecting block; 10, rotary motor; 11, circulation pipe; 12, fan; 13, mounting block; 14, connecting piece; 15, partition installation rod; 16, molybdenum wire heating wire. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1-4 A vacuum furnace flow field uniform device, including furnace body 1, the both sides of furnace body 1 outer end are fixedly installed with mounting ring 3, the furnace cover 2 is movably sleeved at the front end of furnace body 1, the heating inner furnace 8 is arranged in the inside of furnace body 1, the base 4 is arranged at the lower end of furnace body 1, the controller is arranged on the outer end surface of base 4 one side, it is characterized by, still including;

[0025] Circulation structure, correspondingly set at the rear end of furnace body 1, and for improving the uniformity and consistency of heating inside furnace body 1.

[0026] Further, the front end surface of the furnace body 1 is fixedly installed with a mounting block 13, and the outer end surface of the furnace cover 2 is fixedly installed with a connecting piece 14, which is movably connected to the inside of the mounting block 13 at the other end.

[0027] Further, the lower end surface of the base 4 is respectively installed with a connecting seat, and the upper end surface of the connecting seat is respectively fixedly installed with a fixed seat 5, and the upper end of the fixed seat 5 is respectively provided with a limiting piece 6.

[0028] Further, the limiting piece 6 is respectively provided in a triangular shape, and the lower end of one corner of the limiting piece 6 is movably connected to the inside of the upper end of the fixed seat 5, and the upper end of the other two corners of the limiting piece 6 is respectively provided with a roller 7, and the outer end of the roller 7 is in close contact with the outer end of the mounting ring 3.

[0029] Further, the outer end surface of the heating inner furnace 8 is respectively installed with a plurality of partition installation rods 15, and the other end of the partition installation rod 15 is respectively fixedly connected to the inner wall surface of the furnace body 1, and a plurality of molybdenum wire heating wires 16 are respectively installed on the outer end surface of the heating inner furnace 8.

[0030] Further, the rear end surface of the furnace body 1 is fixedly connected with a connecting block 9, and the front end of the connecting block 9 extends to the rear end inside of the furnace body 1, and a dust screen is arranged, and the central rear end surface of the connecting block 9 is fixedly installed with a rotary motor 10.

[0031] Further, the circulating structure is composed of a circulating pipe 11 and a fan 12, and the fan 12 is arranged at the front end of the inside of the connecting block 9, and the shaft of the fan 12 is fixedly connected to the output end of the rotary motor 10, and the circulating pipe 11 is fixedly connected to the upper end surface of the rear end of the connecting block 9, and the other end of the circulating pipe 11 extends to the upper end of the rear surface of the furnace body 1.

[0032] Furnace body and furnace cover: The furnace body 1 is the basic framework of the whole device, and the material is usually selected from alloy materials with high temperature resistance, high strength and good sealing performance, so as to withstand high temperature environment and maintain internal vacuum state. On one side of the front end surface of the furnace body 1, the mounting block 13 is firmly fixed, and the mounting block 13 is connected with the furnace body 1 through precise welding process, to ensure the stability of the connection. The connecting piece 14 on the outer end surface of the furnace cover 2 is connected with the mounting block 13 through movable shaft, which not only ensures that the furnace cover 2 can be opened and closed flexibly, but also makes the operation simple and smooth. When closed, the furnace cover 2 and the furnace body 1 can be tightly fitted to form a reliable sealing structure, effectively preventing heat loss and external impurities from entering, and providing a stable vacuum environment for material heating.

[0033] Support and limiting structure: the base 4 is located at the bottom of the entire device, which supports the furnace body 1 and bears the weight of other components. The lower end surface of the base 4 is evenly distributed with four connecting seats, which are firmly connected with the fixed seat 5 through bolts. The limiting piece 6 arranged on the upper end of the fixed seat 5 is a triangular structure, and one corner of the lower end is connected to the inner upper end of the fixed seat 5 through a movable hinge, so that the limiting piece 6 can rotate flexibly within a certain range. The two corners of the upper end of the limiting piece 6 are respectively installed with roller wheels 7, which are made of wear-resistant rubber material and have metal wheel hubs. The outer end of the roller wheel 7 is tightly fitted with the outer end of the mounting ring 3 installed on both sides of the outer end of the furnace body 1. During the operation of the device, when the furnace body 1 is displaced due to factors such as heating expansion and mechanical vibration, the limiting piece 6 and the roller wheel 7 can timely limit the position of the furnace body 1, ensuring that it always remains stable, providing reliable protection for the normal development of heating and other operations.

[0034] Heating core area: the heating inner furnace 8 is the core heating component of the device, which is located at the inner center position of the furnace body 1. The outer shell of the heating inner furnace 8 is usually made of high-purity alumina ceramic material, which has good high-temperature resistance and insulation performance. On the outer end surface of the heating inner furnace 8, a number of molybdenum heating wires 16 are arranged in a circle. These molybdenum heating wires 16 are evenly distributed and can generate stable and uniform heat after being electrified, efficiently heating the materials inside the furnace body 1. At the same time, a number of partition installation rods 15 are arranged in a circle on the outer end surface of the heating inner furnace 8. One end of the partition installation rod 15 is fixed to the outer shell of the heating inner furnace 8 through high-temperature resistant welding material, and the other end is tightly connected with the inner wall surface of the furnace body 1. The partition installation rod 15 not only supports and fixes the heating inner furnace 8, but also reasonably blocks and guides the heat flow in the furnace, effectively improving the stability and uniformity of heating.

[0035] Circulation structure component: the circulation structure is the key part to realize uniform flow field in the furnace, which is composed of a circulation pipe 11 and a fan 12. The central part of the rear end surface of the furnace body 1 is fixedly connected with a connecting block 9, the front end of the connecting block 9 extends into the rear end of the furnace body 1, and a fine dust screen is arranged at this position to effectively block dust, impurities and other impurities from entering the circulation structure, ensuring its normal operation. The central part of the rear end surface of the connecting block 9 is installed with a rotating motor 10, the output shaft of the rotating motor 10 is tightly connected with the shaft of the fan 12, and a high-precision coupling is used for connection to ensure the stability and accuracy of power transmission. When the rotating motor 10 starts, it can drive the fan 12 to rotate at high speed. The fan 12 quickly sucks the air at the rear end of the furnace body 1 into the connecting block 9, and then delivers the gas to the upper end of the rear surface of the furnace body 1 through the circulation pipe 11, and then reenters the inside of the furnace body 1. Through this way of gas circulation, the heat in different areas of the furnace can be effectively mixed and transferred, avoiding the situation of local high or low temperature, thereby improving the uniformity and consistency of heating in the furnace body 1, making the flow field in the furnace more uniform and stable

[0036] Usage

[0037] The installation block 13 is fixedly installed on one side of the front end surface of the furnace body 1, and the connecting piece 14 is fixedly installed on one side of the outer end surface of the furnace cover 2. The other end of the connecting piece 14 is movably connected to the inside of the installation block 13. This connection mode enables the furnace cover 2 to be flexibly opened and closed relative to the furnace body 1. When the furnace cover 2 is closed, a relatively sealed space can be formed inside the furnace body 1, meeting the vacuum environment requirement of the vacuum furnace, avoiding heat loss and the entry of external impurities, providing a stable environment for the heating of the material, and the lower end surface of the base 4 is provided with a connecting seat around the periphery, and a fixed seat 5 is fixedly installed on the connecting seat. The upper end of the fixed seat 5 is provided with a limiting piece 6, which is triangular. One corner of the lower end of the limiting piece 6 is movably connected to the inside of the upper end of the fixed seat 5, and the other two corners of the upper end of the limiting piece 6 are respectively provided with a roller 7. The outer end of the roller 7 is in close contact with the outer end of the installation ring 3. This structure mainly plays a supporting and limiting role for the furnace body 1. During the operation of the device, the furnace body 1 may be displaced due to heating, vibration and other factors. The limiting piece 6 and the roller 7 can limit the position of the furnace body 1, so that it remains stable, ensuring the normal operation of heating and other processes. The heating inner furnace 8 is the core heating area of the device. A plurality of molybdenum heating wires 16 are arranged and installed on the outer end surface of the heating inner furnace 8. When the device starts the heating program, the molybdenum heating wires 16 are electrified and heated to generate heat to heat the material inside the furnace body 1. These heating wires are distributed around the surface of the heating inner furnace 8, which can more evenly heat the internal space of the heating inner furnace 8. At the same time, a plurality of partition installation rods 15 are also arranged and installed around the outer end surface of the heating inner furnace 8. The other end of the partition installation rod 15 is fixedly connected to the inner wall surface inside the furnace body 1. They play a supporting and fixing role for the heating inner furnace 8 and to a certain extent, they play a blocking and guiding role for the heat flow in the furnace, which helps to improve the stability of heating. The circulation structure is the key part to realize uniform flow field, which is composed of a circulation pipe 11 and a fan 12. The connecting block 9 fixedly connected to the central part of the rear end surface of the furnace body 1 extends to the rear end inside of the furnace body 1 and is provided with a dust screen, which can prevent dust and other impurities from entering the circulation structure and affecting its normal operation. The rotating motor 10 is fixedly installed on the central part of the rear end surface of the connecting block 9. The shaft of the fan 12 is fixedly connected to the output end of the rotating motor 10. When the rotating motor 10 starts, it drives the fan 12 to rotate at high speed. The fan 12 sucks the air at the rear end of the furnace body 1 into the connecting block 9, and then delivers the gas to the upper end of the rear surface of the furnace body 1 through the circulation pipe 11, and then into the inside of the furnace body 1. In this way, the heat in different areas of the furnace can be effectively mixed and transferred, avoiding the occurrence of local high or low temperature, thereby improving the uniformity and consistency of the heating of the inside of the furnace body 1, making the flow field in the furnace more uniform, ensuring that the material is evenly heated during the heating process, and improving the product quality.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum furnace flow field uniform device, comprising a furnace body (1), the outer end of the furnace body (1) is fixedly provided with a mounting ring (3) on both sides, a furnace cover (2) is movably sleeved at the front end of the furnace body (1), a heating inner furnace (8) is arranged in the furnace body (1), a base (4) is arranged at the lower end of the furnace body (1), and a controller is arranged on one side of the outer end surface of the base (4), characterized in that, Also include; The circulation structure, corresponding to be arranged in the rear end of the furnace body (1), and be used for improving the uniformity and consistency of heating inside the furnace body (1).

2. The uniform flow field device for vacuum furnace according to claim 1, wherein: The front end surface of the furnace body (1) is fixedly installed with a mounting block (13), and the outer end surface of the furnace cover (2) is fixedly installed with a connecting piece (14), which is movably connected to the inside of the mounting block (13) at the other end of the connecting piece (14).

3. The uniform flow field device for a vacuum furnace of claim 1, wherein: The lower end surface of the base (4) is respectively installed with a connecting seat, and the upper end surface of the connecting seat is respectively fixedly installed with a fixed seat (5), and the upper end of the fixed seat (5) is respectively provided with a limiting piece (6).

4. The uniform flow field device of claim 3, wherein: The limiting piece (6) is triangular, and the lower end of the limiting piece (6) is movably connected to the inside of the upper end of the fixed seat (5), and the upper end of the limiting piece (6) is respectively provided with a roller (7), and the outer end of the roller (7) is attached to the outer end of the mounting ring (3).

5. The uniform flow field device for a vacuum furnace of claim 1, wherein: The outer end surface of the heating inner furnace (8) is respectively surrounded by a plurality of partition installation rods (15), and the other end of the partition installation rod (15) is respectively fixedly connected to the inner wall surface of the furnace body (1), wherein a plurality of molybdenum heating wires (16) are respectively arranged on the outer end surface of the heating inner furnace (8).

6. The uniform flow field device for a vacuum furnace of claim 2, wherein: The rear end surface of the furnace body (1) is fixedly connected with a connecting block (9), which extends to the rear end of the furnace body (1) and is provided with a dust screen, and the rear end surface of the connecting block (9) is fixedly installed with a rotating motor (10).

7. The uniform flow field device of claim 6, wherein: The circulation structure is composed of a circulation pipe (11) and a fan (12), the inner front end of the connecting block (9) is provided with a fan (12), the shaft of the fan (12) is fixedly connected to the output end of the rotating motor (10), and the upper end surface of the rear end of the connecting block (9) is fixedly connected with a circulation pipe (11), and the other end of the circulation pipe (11) corresponds to extend to the upper end of the rear surface of the furnace body (1).

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