Asynchronous short-process metal material continuous heat treatment equipment and method

Abstract

The asynchronous short-process metal material continuous heat treatment equipment comprises eight furnace bodies which are connected in sequence, and a temperature partition area is arranged between every two adjacent furnace bodies. The eight furnace bodies comprise a first dispersion heating furnace, a first centralized heat preservation furnace, a second dispersion heating furnace, a second centralized heat preservation furnace, a special treatment heat preservation furnace, a first dispersion cooling furnace, a third centralized heat preservation furnace and a second dispersion cooling furnace. According to the asynchronous short-process metal material continuous heat treatment equipment and method, through the treatment method of small-amount dispersion heating and centralized heat preservation of the metal material, uniform heating of the metal material is guaranteed, the heating rate is increased, the heat treatment time is shortened, continuous feeding and discharging can be achieved through continuous treatment, and the equipment and method are suitable for continuous automatic mass production; the problems that time, labor and electricity are wasted and efficiency is low due to an existing metal material overall periodic heat treatment mode are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment of metal materials, and specifically to an asynchronous short-process continuous heat treatment device and method for metal materials. Background Art

[0002] Amorphous nanocrystalline soft magnetic alloys refer to soft magnetic alloys with nanocrystalline structures obtained by heat treatment on the basis of amorphous alloys, and have more excellent soft magnetic properties. Due to efficient preparation processes and excellent material properties, amorphous nanocrystalline soft magnetic alloys are gradually replacing traditional soft magnetic materials such as silicon steel, permalloy, and ferrite, and are being more and more widely used in fields such as electric power, electronics, and communication. In order to obtain nanocrystalline soft metal material products with excellent comprehensive properties, especially magnetic properties, heat treatment plays a very important role. Heat treatment can fully release the internal stress generated during the rapid cooling of the liquid alloy, thereby significantly improving the magnetic properties of the final product. Compared with traditional single heat fields, magnetic field heat treatment combines an external magnetic field and a heat field, showing more unique advantages in improving the properties of soft magnetic materials. Through magnetic field heat treatment, the magnetic particles or particle pairs in the material often become directionally ordered, thereby imparting induced anisotropy to the material, that is, making the originally different magnetic domain structures in the material become easily magnetizable, and the magnetic domain structures with directions roughly parallel to the magnetic field orientation.

[0003] Existing metal materials are heat-treated in a periodic and integral manner. A large number of metal materials are stacked in the furnace and cannot be quickly heated to the effective holding temperature at one time. In order to prevent uneven heating of the metal materials, multiple slow temperature equalization sections need to be set before reaching the effective holding temperature to make the materials heated evenly. Therefore, the time of the total heating section process is greatly increased, reducing the production efficiency, and the materials cannot reach the best performance. In addition, the existing overall periodic heat treatment method for metal materials requires repeating a series of heating and cooling processes such as sample placement, heating, holding, cooling, and sampling, resulting in time-consuming, laborious, and power-consuming, as well as low efficiency. Moreover, after heat treatment, the temperature of the metal materials is relatively high. After the metal materials are cooled to a certain temperature or below, the entire furnace of metal materials needs to be manually taken out of the furnace and the metal materials need to be removed from the material rack for dispersion treatment. The process of manual sampling is time-consuming and laborious.

[0004] Therefore, in view of the problems of low working efficiency, high energy consumption, high production cost, and inability to continuously produce in large quantities in the existing heat treatment of metal materials, it is necessary to improve the heat treatment method and equipment for metal materials to improve production efficiency, reduce energy consumption, and reduce costs. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an asynchronous short-process continuous heat treatment device and method for metal materials, which solves the problems of low working efficiency, high energy consumption, high production cost, and inability to continuously produce in large quantities in the existing heat treatment of metal materials.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: An asynchronous short-process continuous heat treatment equipment for metal materials includes eight furnace bodies connected in sequence, and a temperature partition area is provided between adjacent two furnace bodies. The eight furnace bodies respectively include a dispersed heating furnace I, a centralized heat preservation furnace I, a dispersed heating furnace II, a centralized heat preservation furnace II, a special treatment heat preservation furnace, a dispersed cooling furnace I, a centralized heat preservation furnace III, and a dispersed cooling furnace II;

[0007] Each of the eight furnace bodies includes a furnace body main body. A base is fixedly installed at the bottom of the furnace body main body. A support frame is fixedly installed inside the furnace body main body, and a conveying component is arranged on the support frame. An air vent is opened on the surface of the furnace body main body.

[0008] The present invention is further arranged as: The support frame is arranged to be of the same length as the furnace body main body, and the conveying distance of the conveying component matches the length of the furnace body main body;

[0009] And heating components are arranged in the furnace body main bodies of the dispersed heating furnace I, the centralized heat preservation furnace I, the dispersed heating furnace II, the centralized heat preservation furnace II, the special treatment heat preservation furnace, the dispersed cooling furnace I, and the centralized heat preservation furnace III.

[0010] The present invention is further arranged as: The temperature of the dispersed heating furnace I is equal to the temperature of the centralized heat preservation furnace I.

[0011] The present invention is further arranged as: The temperature of the dispersed heating furnace II is equal to the temperatures of the centralized heat preservation furnace II and the special treatment heat preservation furnace.

[0012] The present invention is further arranged as: The temperature of the dispersed cooling furnace I is equal to the temperature of the centralized heat preservation furnace III.

[0013] The present invention is further arranged as: Two magnetic field sources are also erected outside the special treatment heat preservation furnace.

[0014] The present invention is further arranged as: A material tray is placed on the surface of the conveying component, and the material tray is used in cooperation with the support frame. The material tray is used to carry metal materials to realize the transfer and conveying of the metal materials between adjacent two conveying components.

[0015] The present invention also discloses a use method of the asynchronous short-process continuous heat treatment equipment for metal materials, which specifically includes the following steps:

[0016] S1. According to the heat treatment process requirements of the metal materials, set the target temperatures for the dispersed heating furnace I, the centralized heat preservation furnace I, the dispersed heating furnace II, the centralized heat preservation furnace II, the special treatment heat preservation furnace, the dispersed cooling furnace I, and the centralized heat preservation furnace III;

[0017] S2. After the metal material is placed in the material tray, the material tray is placed at intervals on the conveying component of the first dispersion heating furnace. Control the conveying speed of the conveying component to disperse and heat up the metal material until the metal material is heated to the first effective temperature. Then, the material tray drives the metal material into the first centralized heat preservation furnace.

[0018] S3. Control the conveying speed of the conveying component in the first centralized heat preservation furnace. After the metal material is subjected to heat preservation treatment for a set time, the material tray drives the metal material into the second dispersion heating furnace.

[0019] S4. Control the conveying speed of the conveying component in the second dispersion heating furnace to disperse and heat up the metal material until the metal material is heated to the second effective temperature. Then, the material tray drives the metal material into the second centralized heat preservation furnace. Control the conveying speed of the conveying component in the second centralized heat preservation furnace. After the metal material is subjected to heat preservation treatment for a set time, the material tray drives the metal material into the special treatment heat preservation furnace. According to the heat treatment process requirements of the metal material, set the magnetization time and magnetization intensity of the magnetic field source, and set the atmosphere and atmosphere flow rate introduced into the special treatment heat preservation furnace through the air vent. After controlling the metal material to be subjected to heat preservation treatment for a set time in the special treatment heat preservation furnace, the material tray drives the metal material into the first dispersion cooling furnace.

[0020] S5. Control the conveying speed of the conveying component in the first dispersion cooling furnace to cool down the metal material for a set time until the metal material is cooled to the third effective temperature. Then, the material tray drives the metal material into the third centralized heat preservation furnace.

[0021] S6. Control the conveying speed of the conveying component in the third centralized heat preservation furnace. After the metal material is subjected to heat preservation treatment for a set time, the material tray drives the metal material into the second dispersion cooling furnace. Control the conveying speed of the conveying component therein. When the material tray drives the metal material to move to the discharge port, the complete cooling of the metal material is completed.

[0022] The present invention provides an asynchronous short - process continuous heat treatment equipment and method for metal materials, having the following beneficial effects:

[0023] (1) Through the processing method of dispersing and heating a small amount of metal materials and centralized heat preservation, the present invention ensures the uniform heating of metal materials, improves the heating rate, shortens the heat treatment time, and can continuously load and unload materials through continuous processing, which is suitable for continuous automated mass production. It effectively solves the problems of time - consuming, labor - intensive, power - consuming and low efficiency caused by the existing overall periodic heat treatment method of metal materials, which requires a series of heating and cooling processes such as repeated sample laying, heating, heat preservation, cooling and sampling.

[0024] (2) In the present invention, the temperature and conveying speed of each furnace body are independently set, and the heat treatment temperature and heat treatment time of each section are regulated according to the heat treatment process. By controlling the temperature and conveying speed of the centralized heat preservation furnace, centralized heat preservation heat treatment of the metal material is realized at an effective temperature. By controlling the temperature and conveying speed of the decentralized heating furnace, the heating rate control of the metal material is realized. Moreover, the decentralized heating furnace performs decentralized heating heat treatment on a small amount of metal material, ensuring the uniformity of the temperature rise of the metal material. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the continuous heat treatment equipment with a circular structure in an embodiment of the present invention;

[0026] Figure 2 It is a schematic structural diagram of the continuous heat treatment equipment with a linear structure in an embodiment of the present invention;

[0027] Figure 3 It is a schematic process flow diagram of the continuous heat treatment method in the present invention;

[0028] Figure 4 It is a schematic process flow diagram of the conventional heat treatment of the metal material in an embodiment of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the furnace body in the present invention;

[0030] Figure 6 It is a side view of the internal structure of the furnace body main body in an embodiment of the present invention.

[0031] In the figure:

[0032] 1, base; 2, furnace body main body; 3, ventilation port; 4, material tray; 5, conveying assembly; 5-1, conveying wheel; 5-2, conveyor belt; 6, support frame;

[0033] 10, decentralized heating furnace one;

[0034] 20, centralized heat preservation furnace one;

[0035] 30, decentralized heating furnace two;

[0036] 40, centralized heat preservation furnace two;

[0037] 50, special treatment heat preservation furnace; 5001, magnetic field source;

[0038] 60, decentralized cooling furnace one;

[0039] 70, centralized heat preservation furnace three;

[0040] 80, decentralized cooling furnace two; 8001, air-cooled heat dissipation structure;

[0041] 90, temperature partition area. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0043] Please refer to Figure 1-6 , the embodiments of the present invention provide the following technical solutions: An asynchronous short-process continuous heat treatment equipment for metal materials includes eight furnace bodies connected in sequence, and a temperature partition area 90 is provided between adjacent two furnace bodies. The eight furnace bodies respectively include a first dispersed heating furnace 10, a first centralized heat preservation furnace 20, a second dispersed heating furnace 30, a second centralized heat preservation furnace 40, a special treatment heat preservation furnace 50, a first dispersed cooling furnace 60, a third centralized heat preservation furnace 70, and a second dispersed cooling furnace 80. And heating components are arranged in the furnace body main bodies 2 of the first dispersed heating furnace 10, the first centralized heat preservation furnace 20, the second dispersed heating furnace 30, the second centralized heat preservation furnace 40, the special treatment heat preservation furnace 50, the first dispersed cooling furnace 60, and the third centralized heat preservation furnace 70.

[0044] The continuous heat treatment equipment can be flexibly arranged according to actual scenarios, such as the continuous heat treatment equipment under the circular structure shown in the appendix Figure 1 and the continuous heat treatment equipment with a linear structure shown in the appendix Figure 2 .

[0045] As a preferred solution, the first dispersed heating furnace 10, the first centralized heat preservation furnace 20, the second dispersed heating furnace 30, the second centralized heat preservation furnace 40, the special treatment heat preservation furnace 50, the first dispersed cooling furnace 60, the third centralized heat preservation furnace 70, and the second dispersed cooling furnace 80 all include a furnace body main body 2. A base 1 is fixedly installed at the bottom of the furnace body main body 2, a support frame 6 is fixedly installed inside the furnace body main body 2, and a conveying component 5 is arranged on the support frame 6. The support frame 6 is arranged to be as long as the furnace body main body 2, and the conveying distance of the conveying component 5 matches the length of the furnace body main body 2. Air vents 3 are opened on the surface of the furnace body main body 2 to provide support for the introduction of atmosphere. And, in order to ensure the continuous conveyance of the metal material in the first dispersed heating furnace 10, the first centralized heat preservation furnace 20, the second dispersed heating furnace 30, the second centralized heat preservation furnace 40, the special treatment heat preservation furnace 50, the first dispersed cooling furnace 60, the third centralized heat preservation furnace 70, and the second dispersed cooling furnace 80, a material tray 4 is placed on the surface of the conveying component 5, and the material tray 4 is used in cooperation with the support frame 6. As shown in the appendix Figure 6 , sliding grooves are opened on both sides inside the support frame 6, positioning sliders are fixedly installed on both sides of the material tray 4, and the positioning sliders slide in the sliding grooves. During the process of the following conveyor belt 5-2 driving the material tray 4 to move, the stability of the movement of the material tray 4 can be ensured. The material tray 4 is used to carry the metal material to realize the transfer and conveyance of the metal material between adjacent two conveying components 5. Further explanation, as shown in the appendix Figure 6As shown, the conveying assembly 5 is composed of two conveying wheels 5-1 and a conveyor belt 5-2. The conveyor belt 5-2 is drivingly connected through the two conveying wheels 5-1. One conveying wheel 5-1 is fixed to the output end of an external driving motor. In this way, by controlling the rotation speed of the driving motor, the conveying speed of the conveyor belt 5-2 for the material plate 4 in a furnace body can be achieved.

[0046] Furthermore, to uniformly and effectively heat the metal material to the effective temperature one, the temperature of the decentralized heating furnace one 10 is equal to the temperature of the centralized heat preservation furnace one 20.

[0047] Furthermore, to uniformly and effectively heat the metal material to the effective temperature two and perform magnetic field heat treatment, the temperature of the decentralized heating furnace two 30 is equal to the temperatures of the centralized heat preservation furnace two 40 and the special treatment heat preservation furnace 50. Two magnetic field sources 5001 are also installed outside the special treatment heat preservation furnace 50.

[0048] Furthermore, to uniformly and effectively cool the metal material to the effective temperature three, the temperature of the decentralized cooling furnace one 60 is equal to the temperature of the centralized heat preservation furnace three 70.

[0049] As a preferred solution, to accelerate the rapid cooling of the metal material after heat treatment, as shown in Figure 1 and Figure 2 shown, an air-cooled heat dissipation structure 8011 is provided on one side of the decentralized cooling furnace two 80 to accelerate the cooling rate of the metal material.

[0050] The distributions of the above-mentioned effective temperature one, effective temperature two, and effective temperature three are as shown in Figure 3 shown. Compared with the conventional heat treatment process flow of metal materials, as shown in Figure 4 shown, comparing Figure 3 and Figure 4 , it can be seen that the present invention completely solves the problems of the large-scale centralized heat treatment of existing metal materials, which cannot be heated to the effective heat preservation temperature at one time and quickly, and multiple and slow temperature equalization sections need to be set before reaching the effective heat preservation temperature to make the material heated evenly, resulting in low production efficiency and the material not reaching the best performance.

[0051] The usage method of the asynchronous short-process metal material continuous heat treatment equipment specifically includes the following steps:

[0052] S1. According to the heat treatment process requirements of the metal material, set the target temperature and conveying speed for the decentralized heating furnace one 10, the centralized heat preservation furnace one 20, the decentralized heating furnace two 30, the centralized heat preservation furnace two 40, the special treatment heat preservation furnace 50, the decentralized cooling furnace one 60, and the centralized heat preservation furnace three 70, with the goal of meeting the requirements of the heating rate, heat preservation time, and cooling rate of the metal material heat treatment.

[0053] S2. After the metal material is placed in the material tray 4, the material tray 4 is placed at intervals on the conveying component 5 of the dispersion heating furnace 10. The interval placement is used to control the feeding amount, which not only realizes the rapid heating of the metal material but also avoids the phenomenon of uneven heating of the metal material. By controlling the conveying speed of the conveying component 5, the metal material is heated dispersedly until the metal material reaches the first effective temperature, and then the material tray 4 drives the metal material into the centralized heat preservation furnace 20;

[0054] S3. Control the conveying speed of the conveying component 5 in the centralized heat preservation furnace 20 to perform heat preservation treatment on the metal material for a set time, control the effective heat preservation temperature and heat preservation time of the heat treatment of the metal material, and achieve the best heat treatment effect of the metal material. Then the material tray 4 drives the metal material into the dispersion heating furnace 30;

[0055] S4. Control the conveying speed of the conveying component 5 in the dispersion heating furnace 30 to heat the metal material dispersedly until the metal material reaches the second effective temperature. Through the rapid and continuous heating process of controlling the feeding amount, the problem that multiple slow heating and heat preservation repetitions are required to achieve the uniform temperature of the metal material is effectively solved, and the production efficiency is greatly improved. The material tray 4 drives the metal material into the centralized heat preservation furnace 40. Control the conveying speed of the conveying component 5 in the centralized heat preservation furnace 40 to perform heat preservation treatment on the metal material for a set time. All the metal materials can reach the second effective temperature and be heat-preserved for a certain time, so that the performance of the metal material after heat treatment reaches the best effect. Then the material tray 4 drives the metal material into the special treatment heat preservation furnace 50. According to the heat treatment process requirements of the metal material, set the magnetization time and magnetization intensity of the magnetic field source 5001, and set the atmosphere and atmosphere flow rate introduced into the special treatment heat preservation furnace 50 through the air vent 3. After controlling the heat preservation treatment of the metal material in the special treatment heat preservation furnace 50 for a set time, the material tray 4 drives the metal material into the dispersion cooling furnace 60;

[0056] S5. Control the conveying speed of the conveying component 5 in the dispersion cooling furnace 60 to perform cooling treatment on the metal material for a set time until the metal material cools down to the third effective temperature, and then the material tray 4 drives the metal material into the centralized heat preservation furnace 70;

[0057] S6. Control the conveying speed of the conveying component 5 in the centralized heat preservation furnace 70 to perform heat preservation treatment on the metal material for a set time. Then the material tray 4 drives the metal material into the dispersion cooling furnace 80. Control the conveying speed of the conveying component 5 inside it. When the material tray 4 drives the metal material to the discharge port, the complete cooling of the metal material is completed. Among them, the air-cooled heat dissipation structure 8001 on one side of the dispersion cooling furnace 80 is started to accelerate the cooling speed of the metal material, realizing high-efficiency production and meeting the requirements for rapid cooling of some specific metal materials.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can 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. An asynchronous short-process continuous heat treatment equipment for metal materials, characterized in that: It includes eight furnace bodies connected in sequence, and a temperature isolation zone (90) is arranged between adjacent two furnace bodies. The eight furnace bodies respectively include a first decentralized heating furnace (10), a first centralized heat preservation furnace (20), a second decentralized heating furnace (30), a second centralized heat preservation furnace (40), a special treatment heat preservation furnace (50), a first decentralized cooling furnace (60), a third centralized heat preservation furnace (70) and a second decentralized cooling furnace (80); Each of the eight furnace bodies includes a furnace body main body (2). A base (1) is fixedly installed at the bottom of the furnace body main body (2). A support frame (6) is fixedly installed inside the furnace body main body (2), and a conveying component (5) is arranged on the support frame (6). An air vent (3) is formed on the surface of the furnace body main body (2).

2. The continuous heat treatment equipment for asynchronous short-process metal materials according to claim 1, characterized in that: The support frame (6) is arranged to be as long as the furnace body main body (2), and the conveying distance of the conveying component (5) matches the length of the furnace body main body (2); Moreover, heating components are arranged in the furnace body main bodies (2) of the first decentralized heating furnace (10), the first centralized heat preservation furnace (20), the second decentralized heating furnace (30), the second centralized heat preservation furnace (40), the special treatment heat preservation furnace (50), the first decentralized cooling furnace (60) and the third centralized heat preservation furnace (70).

3. An asynchronous short-process continuous heat treatment equipment for metal materials according to claim 1, characterized in that: The temperature of the first decentralized heating furnace (10) is equal to that of the first centralized heat preservation furnace (20).

4. An asynchronous short-process continuous heat treatment equipment for metal materials according to claim 1, characterized in that: The temperature of the second decentralized heating furnace (30) is equal to those of the second centralized heat preservation furnace (40) and the special treatment heat preservation furnace (50).

5. The continuous heat treatment equipment for asynchronous short-process metal materials according to claim 1, characterized in that: The temperature of the first decentralized cooling furnace (60) is equal to that of the third centralized heat preservation furnace (70).

6. An asynchronous short-process continuous heat treatment equipment for metal materials according to claim 1, characterized in that: Two magnetic field sources (5001) are also erected outside the special treatment heat preservation furnace (50).

7. An asynchronous short-process continuous heat treatment equipment for metal materials according to claim 1, characterized in that: A material tray (4) is placed on the surface of the conveying component (5), and the material tray (4) is used in cooperation with the support frame (6). The material tray (4) is used for carrying metal materials to realize the transfer and conveying of the metal materials between adjacent two conveying components (5).

8. A method for using an asynchronous short-process continuous heat treatment device for metal materials, characterized in that: Specifically, it includes the following steps: S1. According to the heat treatment process requirements of the metal materials, set the target temperatures for the first decentralized heating furnace (10), the first centralized heat preservation furnace (20), the second decentralized heating furnace (30), the second centralized heat preservation furnace (40), the special treatment heat preservation furnace (50), the first decentralized cooling furnace (60) and the third centralized heat preservation furnace (70); S2. After the metal materials are placed in the material tray (4), the material tray (4) is placed at intervals on the conveying component (5) of the first decentralized heating furnace (10). Control the conveying speed of this conveying component (5) to perform decentralized heating on the metal materials until the metal materials are heated to the first effective temperature, and then the material tray (4) drives the metal materials into the first centralized heat preservation furnace (20); S3. Control the conveying speed of the conveying component (5) in the first centralized heat preservation furnace (20). After performing heat preservation treatment on the metal materials for a set time, the material tray (4) drives the metal materials into the second decentralized heating furnace (30); S4. Control the conveying speed of the conveying component (5) in the second dispersed heating furnace (30) to conduct dispersed heating on the metal material. After the metal material is heated to the second effective temperature, the material tray (4) drives the metal material into the second centralized heat preservation furnace (40). Control the conveying speed of the conveying component (5) in the second centralized heat preservation furnace (40) to conduct heat preservation treatment on the metal material for a set duration. Then, the material tray (4) drives the metal material into the special treatment heat preservation furnace (50). According to the heat treatment process requirements of the metal material, set the magnetization time and magnetization intensity of the magnetic field source (5001), and set the atmosphere and atmosphere flow rate introduced into the special treatment heat preservation furnace (50) through the ventilation port (3). After controlling the special treatment heat preservation furnace (50) to conduct heat preservation treatment on the metal material for a set duration, the material tray (4) drives the metal material into the first dispersed cooling furnace (60); S5. Control the conveying speed of the conveying component (5) in the first dispersed cooling furnace (60) to conduct cooling treatment on the metal material for a set duration. After the metal material is cooled to the third effective temperature, the material tray (4) drives the metal material into the third centralized heat preservation furnace (70); S6. Control the conveying speed of the conveying component (5) in the third centralized heat preservation furnace (70) to conduct heat preservation treatment on the metal material for a set duration. Then, the material tray (4) drives the metal material into the second dispersed cooling furnace (80). Control the conveying speed of the conveying component (5) therein. When the material tray (4) drives the metal material to move to the discharge port, the complete cooling of the metal material is completed.

Images