A multi-stage heat treatment device for magnesium alloy rods
By performing multiple heat treatments on magnesium alloy bars using a multi-stage heat treatment device, the problem of homogenization of large-sized bars was solved, grain uniformity and thermal stress were optimized, the risk of microcracks was reduced, and the efficiency of heat treatment was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BADA NEW MATERIALS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
Smart Images

Figure CN224411824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnesium alloy rod processing technology, specifically a multi-stage heat treatment device for magnesium alloy rods. Background Technology
[0002] With the continuous advancement of advanced technology, the demand for lightweighting is increasing, and the application of magnesium alloys is becoming more and more widespread. Large-sized magnesium alloy parts are increasingly being used in advanced machinery. Large-sized ingots are the basis for the continuous deformation of magnesium alloys into parts. Heat treatment before deformation is the basis for the smooth progress of subsequent deformation. Therefore, magnesium alloy bars need to be heat treated.
[0003] Traditional magnesium alloy heat treatment processes (such as single-stage 410℃ / 23h) can dissolve the second phase, but they are not designed for the homogenization requirements of large-size bars (300-500mm in diameter), resulting in large differences in grain size and segregation of the second phase [1]. Secondly, there is also the risk of excessive thermal stress and some cracking. Large-size ingots are prone to microcracks due to thermal stress concentration during high-temperature solution treatment.
[0004] Therefore, it is necessary to provide a new multi-stage heat treatment apparatus for magnesium alloy bars to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a multi-stage heat treatment device for magnesium alloy rods.
[0006] The multi-stage heat treatment apparatus for magnesium alloy bars provided by this utility model includes:
[0007] The base has a device housing fixedly connected to its top;
[0008] The rotating sleeve has a first heating furnace fixedly connected inside the outer shell of the device. The bottom of the first heating furnace has an opening. The bottom of the first heating furnace has a second heating furnace fixedly connected. The top and bottom of the second heating furnace have openings. The rear side of the outer shell of the device has a rotating motor fixedly connected. There are two sets of rotating motors. The front output ends of the two sets of rotating motors are fixedly connected to rotating sleeves. The two sets of rotating sleeves can be easily fitted onto the bottom openings of the first heating furnace and the second heating furnace.
[0009] Preferably, the bottom of the second heating furnace is fixedly connected to the third heating furnace, and the top of the third heating furnace has an opening, through which magnesium alloy rods can pass.
[0010] Preferably, heating resistance wires are fixedly connected to the inner walls of the first heating furnace, the second heating furnace, and the third heating furnace, and the magnesium alloy rods can be heat-treated by the heating resistance wires.
[0011] Preferably, both the first heating furnace and the second heating furnace have toothed grooves on one side, which can be used to store and hold teeth.
[0012] Preferably, the top of both sets of rotating sleeves is fixedly connected with placement teeth. Multiple sets of placement teeth are provided, and the multiple sets of placement teeth are slidably connected inside the tooth groove. Magnesium alloy rods can be placed through the placement teeth.
[0013] Preferably, the bottom of the third heating furnace is fixedly connected to a roller, and multiple sets of rollers are provided. The magnesium alloy rods can be easily removed by means of the rollers.
[0014] Preferably, the front side of the device housing has through holes at the top and bottom, and there are two sets of through holes. A hinge is fixedly connected to one side of each set of through holes, and a sealing cover is fixedly connected to the inner side of each set of hinges. A push rod is fixedly connected to the front side of each set of sealing covers. The magnesium alloy rod can be taken out through the through holes, and the through holes can be sealed by the sealing covers.
[0015] Preferably, a controller is fixedly connected to one side of the device housing. Two sets of rotary motors and heating resistance wires are electrically connected to the controller via wires. The device can be operated intuitively through the controller, and power and control signals can be transmitted to various electronic components through the wires.
[0016] Compared with related technologies, the multi-stage heat treatment device for magnesium alloy bars provided by this utility model has the following beneficial effects:
[0017] This utility model provides a multi-stage heat treatment device for magnesium alloy rods;
[0018] This invention allows for the placement of magnesium alloy rods via a rotating sleeve. When heat treatment of the magnesium alloy rods is required, clamps can be used to place the rods into the first heating furnace through the through-hole at the top of the device housing. The rods are then placed onto the placement teeth of the rotating sleeve. The heating resistance wire is controlled by the operating controller to perform heat treatment on the magnesium alloy rods. After the first heat treatment in the first heating furnace is completed, the front output end of the rotating motor at the top is controlled by the operating controller to rotate, causing the rotating sleeve to rotate to one side. This retracts the placement teeth into the tooth groove, exposing the opening so that the magnesium alloy rods can fall onto the placement teeth inside the second heating furnace, thus achieving the placement and movement of the magnesium alloy rods into the second heating furnace.
[0019] This invention allows for multiple heat treatments of magnesium alloy rods using a second and third heating furnace. After the magnesium alloy rod falls into the second heating furnace, the heating resistance wire is controlled by an operating controller to perform heat treatment on the rod. After the second heat treatment, the front output end of the rotary motor at the top is rotated by the operating controller, causing the rotating sleeve to rotate to one side, retracting the placement teeth into the tooth groove and exposing the opening so that the magnesium alloy rod can fall into the third heating furnace. The heating resistance wire is then controlled by the operating controller to perform heat treatment on the rod again, thus achieving multiple heat treatments of the magnesium alloy rod. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the multi-stage heat treatment device for magnesium alloy rods according to this utility model.
[0021] Figure 2 This is a top sectional view of the multi-stage heat treatment device for magnesium alloy bars according to this utility model.
[0022] Figure 3 This is a front cross-sectional view of the multi-stage heat treatment device for magnesium alloy bars according to this utility model.
[0023] Figure 4 This is a side cross-sectional view of the multi-stage heat treatment device for magnesium alloy bars according to this utility model.
[0024] The following are the labels in the diagram: 1. Base; 2. Device housing; 3. Hinge; 4. Sealing cover; 5. Push rod; 6. Controller; 7. Wire; 8. First heating furnace; 9. Rotary motor; 10. Gear groove; 11. Rotating sleeve; 12. Heating resistance wire; 13. Second heating furnace; 14. Third heating furnace; 15. Roller; 16. Placement tooth. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0027] Please see Figures 1 to 4 This utility model provides a multi-stage heat treatment device for magnesium alloy bars, the multi-stage heat treatment device for magnesium alloy bars includes:
[0028] Base 1, with device housing 2 fixedly connected to the top of base 1;
[0029] The rotating sleeve 11 is fixedly connected to the inside of the device housing 2. The first heating furnace 8 has an opening at the bottom. The second heating furnace 13 is fixedly connected to the bottom of the first heating furnace 8. The second heating furnace 13 has openings at both the top and bottom. The rotating motor 9 is fixedly connected to the rear side of the device housing 2. There are two sets of rotating motors 9. The front output ends of the two sets of rotating motors 9 are fixedly connected to the rotating sleeve 11. The two sets of rotating sleeves 11 can be easily fitted onto the bottom openings of the first heating furnace 8 and the second heating furnace 13.
[0030] It should be noted that when heat treatment of magnesium alloy bars is required, clamps can be used to place the magnesium alloy bars into the first heating furnace 8 through the through hole at the top of the device housing 2. The magnesium alloy bars are then placed on the placement teeth 16 of the rotating sleeve 11. The heating resistance wire 12 is controlled by the operation controller 6 to perform heat treatment on the magnesium alloy bars. After the first heat treatment in the first heating furnace 8 is completed, the front output end of the rotary motor 9 at the top is controlled by the operation controller 6 to rotate, causing the rotating sleeve 11 to rotate to one side, retracting the placement teeth 16 into the tooth groove 10, exposing the opening so that the magnesium alloy bars can fall into the placement area inside the second heating furnace. On the tooth 16, the magnesium alloy rod is placed and moved to the second heating furnace. After the magnesium alloy rod falls into the second heating furnace, the heating resistance wire 12 is controlled by the operation controller 6 to perform heat treatment on the magnesium alloy rod. After the second heat treatment, the front output end of the rotary motor 9 at the top is controlled by the operation controller 6 to rotate, driving the rotating sleeve 11 to rotate to one side, so that the placement tooth 16 is stored inside the tooth groove 10, exposing the opening to allow the magnesium alloy rod to fall into the third heating furnace 14. The heating resistance wire 12 is controlled by the operation controller 6 to perform heat treatment on the magnesium alloy rod again, thereby realizing multiple heat treatments of the magnesium alloy rod.
[0031] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The bottom of the second heating furnace 13 is fixedly connected to the third heating furnace 14. The top of the third heating furnace 14 has an opening, through which magnesium alloy rods can pass.
[0032] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 Heating resistance wires 12 are fixedly connected to the inner walls of the first heating furnace 8, the second heating furnace 13 and the third heating furnace 14. The magnesium alloy rods can be heat-treated by the heating resistance wires 12.
[0033] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 Both the first heating furnace 8 and the second heating furnace 13 have a toothed groove 10 on one side, through which the tooth 16 can be placed.
[0034] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 Both sets of rotating sleeves 11 are fixedly connected to the top of placement teeth 16. Multiple sets of placement teeth 16 are provided and are slidably connected inside the tooth groove 10. Magnesium alloy rods can be placed through the placement teeth 16.
[0035] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The bottom of the third heating furnace 14 is fixedly connected to a roller 15. Multiple sets of rollers 15 are provided, and the magnesium alloy rods can be easily removed through the rollers 15.
[0036] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The front of the outer casing 2 of the device has through holes at the top and bottom. There are two sets of through holes. A hinge 3 is fixedly connected to one side of each set of through holes. A sealing cover 4 is fixedly connected to the inner side of each set of hinges 3. A push rod 5 is fixedly connected to the front side of each set of sealing covers 4. The magnesium alloy rod can be taken out through the through holes, and the through holes can be sealed by the sealing covers 4.
[0037] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 A controller 6 is fixedly connected to one side of the device housing 2. Two sets of rotary motors 9 and heating resistance wires 12 are electrically connected to the controller 6 via wires 7. The device can be operated intuitively through the controller 6, and power and control signals can be transmitted to various electronic components through the wires 7.
[0038] The working principle of the multi-stage heat treatment device for magnesium alloy bars provided by this utility model is as follows:
[0039] In use, when heat treatment of magnesium alloy rods is required, clamps are used to place the magnesium alloy rods into the first heating furnace 8 through the through hole at the top of the device housing 2. The magnesium alloy rods are then placed on the placement teeth 16 of the rotating sleeve 11. The heating resistance wire 12 is controlled by the operation controller 6 to perform heat treatment on the magnesium alloy rods. After the first heat treatment in the first heating furnace 8 is completed, the front output end of the rotary motor 9 at the top is controlled by the operation controller 6 to rotate, causing the rotating sleeve 11 to rotate to one side, retracting the placement teeth 16 into the tooth groove 10, exposing the opening so that the magnesium alloy rods can fall into the placement tooth groove 10 of the second heating furnace. The magnesium alloy rod is placed on the tooth 16 and moved to the second heating furnace. After the magnesium alloy rod falls into the second heating furnace, the heating resistance wire 12 is controlled by the operation controller 6 to perform heat treatment on the magnesium alloy rod. After the second heat treatment, the front output end of the rotary motor 9 at the top is controlled by the operation controller 6 to rotate, which drives the rotating sleeve 11 to rotate to one side, so that the tooth 16 is stored inside the tooth groove 10, and the opening is exposed to allow the magnesium alloy rod to fall into the third heating furnace 14. The heating resistance wire 12 is controlled by the operation controller 6 to perform heat treatment on the magnesium alloy rod again, thereby realizing multiple heat treatments of the magnesium alloy rod.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A multi-stage heat treatment apparatus for magnesium alloy bars, characterized in that, include: The base (1) has a device housing (2) fixedly connected to its top. Rotating sleeve (11), the inside of the device housing (2) is fixedly connected to a first heating furnace (8), the bottom of the first heating furnace (8) is opened, the bottom of the first heating furnace (8) is fixedly connected to a second heating furnace (13), the top and bottom of the second heating furnace (13) are both opened, the rear side of the device housing (2) is fixedly connected to a rotary motor (9), the rotary motor (9) is provided in two sets, the front output end of the two sets of rotary motors (9) is fixedly connected to a rotating sleeve (11), the two sets of rotating sleeves (11) are convenient to be fitted onto the bottom openings of the first heating furnace (8) and the second heating furnace (13).
2. The multi-stage thermal treatment apparatus for a magnesium alloy rod according to claim 1, characterized by: The bottom of the second heating furnace (13) is fixedly connected to the third heating furnace (14), and the top of the third heating furnace (14) has an opening.
3. The multi-stage thermal treatment apparatus for a magnesium alloy rod according to claim 1, characterized by: Heating resistance wires (12) are fixedly connected to the inner walls of the first heating furnace (8), the second heating furnace (13) and the third heating furnace (14).
4. The multi-stage thermal treatment apparatus for a magnesium alloy rod according to claim 1, characterized by: The first heating furnace (8) and the second heating furnace (13) are both provided with toothed grooves (10) on one side.
5. The multi-stage thermal treatment apparatus for a magnesium alloy rod according to claim 1, characterized by: The top of each of the two sets of rotating sleeves (11) is fixedly connected with a placement tooth (16), and multiple sets of placement teeth (16) are provided. The multiple sets of placement teeth (16) are slidably connected inside the tooth groove (10).
6. The multi-stage thermal treatment apparatus for a magnesium alloy rod according to claim 2, characterized by: The bottom of the third heating furnace (14) is fixedly connected to a roller (15), and multiple sets of rollers (15) are provided.
7. The multi-stage thermal treatment apparatus for a magnesium alloy rod according to claim 1, characterized by: The front side of the outer shell (2) of the device is provided with through holes at the top and bottom. There are two sets of through holes. A hinge (3) is fixedly connected to one side of each set of through holes. A sealing cover (4) is fixedly connected to the inner side of each set of hinges (3). A push rod (5) is fixedly connected to the front side of each set of sealing covers (4).
8. The multi-stage thermal treatment apparatus for a magnesium alloy rod according to claim 1, characterized by: A controller (6) is fixedly connected to one side of the device housing (2), and the two sets of rotary motors (9) and heating resistance wires (12) are electrically connected to the controller (6) via wires (7).