Solid solution bearing jig
By using solid solution bearing tools designed with profiling base plate and profiling cover plate during solid solution, the problem of difficult deformation of hinge materials during solid solution is solved, and higher yields and lower production costs are achieved.
Patent Information
- Application Number
- CN202420981686.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The prior art is difficult to effectively control the deformation of hinge materials during solid solution, resulting in high production costs and low yields, making it difficult to meet the forming needs of complex structural parts.
The solid solution bearing tool is adopted, including a pronounced base plate and a pronounced cover plate. Through the positioning block and concave design, it provides pronounced support and pressing correction to reduce deformation of the solid solution product.
Minimize the deformation of solid solution products, improve yield, and reduce production costs. It is suitable for hinged parts with strip-shaped, porous and thin wall structures.
Smart Images
Figure CN222613411U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of powder injection molding, and in particular to a solid solution bearing tool. Background Art
[0002] Metal powder injection molding is the fastest-growing powder metallurgy near-net forming process in recent years. Since this technology is the product of the combination of traditional powder metallurgy forming technology and plastic injection molding technology, it not only has the advantages of conventional powder metallurgy process such as fewer steps, no cutting or less cutting, and high economic benefits, but also overcomes the characteristics of traditional powder metallurgy process such as low material density, uneven material, low mechanical properties, and difficulty in forming thin-walled and complex structural parts. It is particularly advantageous in the preparation of parts with complex geometric shapes and uniform organizational structure.
[0003] At present, with the continuous emergence of foldable screen mobile phones, innovative screen design and technological applications have brought users a richer and more comfortable user experience. However, the folding hinge structure materials are still mainly made of traditional stainless steel and iron-based alloys. These materials can basically meet the strength requirements of the first generation of folding hinges by improving the strength of the materials through heat treatment. The competition among major mobile phone manufacturers in the future folding mobile phone market will mainly come from the advantages and disadvantages of the mechanical properties of folding hinges. Therefore, hinge materials with high mechanical properties are the current research focus. Utility Model Content
[0004] In order to solve the existing technical problems, the embodiment of the present application provides a solid solution support tool. The technical solution is as follows:
[0005] In a first aspect, a solid solution bearing tool is provided, comprising a contoured base plate and a contoured cover plate; the contoured base plate is provided with a first bottom surface and a second bottom surface, the first bottom surface and the second bottom surface are separated by a positioning block, and the depth of the first bottom surface is greater than that of the second bottom surface; the contoured cover plate is provided with a first concave surface, a second concave surface and a third concave surface.
[0006] Furthermore, the contoured bottom plate is 10 cm thick, the first bottom surface is 5.39±0.03 cm deep, the second bottom surface is 4.77±0.03 cm deep, and the positioning block is 4 cm deep.
[0007] Furthermore, the first bottom surface is 3.74 cm away from one side edge of the contoured bottom plate, the first bottom surface is 20.7 cm wide, the second bottom surface is 14.19 cm wide, and the positioning block is 9.5 cm wide.
[0008] Furthermore, the contoured cover plate is 5 cm thick, the first concave surface is 0.60±0.03 cm deep, the second concave surface is 0.14±0.03 cm deep, the third concave surface is 0.56±0.03 cm deep, the first edge close to the first concave surface is 0.14±0.03 cm deep, and the second edge close to the third concave surface is 0.15±0.03 cm deep.
[0009] Further, the first edge is 3.45 cm wide, the first concave surface is 3.5 cm wide, the second concave surface is 9.14 cm wide, the first concave surface and the second concave surface are spaced 7 cm apart, the second concave surface and the third concave surface are spaced 3.5 cm apart, and the second edge is 10.81 cm wide.
[0010] Furthermore, two contoured bottom plates are arranged side by side on the jig, and each contoured bottom plate is correspondingly provided with a contoured cover plate.
[0011] Furthermore, the contoured bottom plate and the contoured cover plate are made of ceramic plates.
[0012] Furthermore, the ceramic plate has a heat-resistant temperature greater than 1100°C.
[0013] Furthermore, the ceramic is alumina ceramic.
[0014] The beneficial effects of the technical solution provided in the embodiment of the present application are as follows: the solid solution bearing fixture of the present application includes a contoured bottom plate and a contoured cover plate; the contoured bottom plate is provided with a first bottom surface and a second bottom surface, the first bottom surface and the second bottom surface are separated by a positioning block, and the depth of the first bottom surface is greater than that of the second bottom surface; the contoured cover plate is provided with a first concave surface and a second concave surface. The solid solution bearing fixture of the present application minimizes the deformation of solid solution products, improves the yield rate, and reduces production costs. It can be mass-produced and is widely applicable to hinge (shaft) parts with strip-shaped, porous, and thin-walled structures, providing more design solutions and inspiration for the future development of solid solution fixtures for such ultra-complex parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 It is a structural diagram of a contoured bottom plate of a solid solution bearing tool provided in an embodiment of the present application;
[0017] Figure 2 It is a structural diagram of a contoured cover plate of a solid solution bearing tool provided in an embodiment of the present application;
[0018] Figure 3 It is a box plot comparing the flatness & branch line data of different solid solution metallurgy products in the embodiments of the present application. DETAILED DESCRIPTION
[0019] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.
[0020] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0021] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.
[0022] In the description of this application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. In the description of this application, unless otherwise specified, "plurality" means two or more.
[0023] Example
[0024] like Figure 1 and Figure 2 The solid solution bearing tool comprises a profiling base plate 10 and a profiling cover plate 20; the profiling base plate 10 is provided with a first bottom surface 11 and a second bottom surface 12, and the first bottom surface 11 and the second bottom surface 12 are separated by a positioning block 13. According to the actual structure of the workpiece, the depth of the first bottom surface 11 may be the same as or different from the depth of the second bottom surface 12. In this embodiment, the depth of the first bottom surface 11 is greater than that of the second bottom surface 12. The profiling cover plate 20 is provided with a first concave surface 21, a second concave surface 22 and a third concave surface 23.
[0025] In practice, two profiling base plates 101 can be arranged side by side on the same tool, and each profiling base plate 101 is correspondingly provided with a profiling cover plate 20. The profiling cover plate 20 adopts an independent split design, so that each profiling cover plate 20 can be pressed on the workpiece separately during the solid solution, avoiding mutual influence between the workpieces and reducing the loss of the workpieces during the solid solution process.
[0026] The contoured bottom plate 10 is 10 cm thick, the first bottom surface 11 is 5.39±0.03 cm deep, the second bottom surface 12 is 4.77±0.03 cm deep, and the positioning block is 4 cm deep.
[0027] The first bottom surface 11 is 3.74 cm wide from the edge of the profiling base plate 10, the first bottom surface 11 is 20.7 cm wide, the second bottom surface 12 is 14.19 cm wide, and the positioning block 13 is 9.5 cm wide. The two profiling base plates on the same jig are directly spaced 3.74 cm apart.
[0028] The contoured cover plate 20 is 5 cm thick, the first concave surface 21 is 0.60±0.03 cm deep, the second concave surface 22 is 0.14±0.03 cm deep, the third concave surface 23 is 0.56±0.03 cm deep, the first edge 24 close to the first concave surface is 0.14±0.03 cm deep, and the second edge 25 close to the third concave surface is 0.15±0.03 cm deep.
[0029] The first edge 24 is 3.45 cm wide, the first concave surface 21 is 3.5 cm wide, the second concave surface 22 is 6.5 cm wide, the third concave surface 23 is 9.14 cm wide, the second edge 25 is 10.81 cm wide, the first concave surface 21 and the second concave surface 22 are spaced 7 cm apart, and the second concave surface 22 and the third concave surface 23 are spaced 3.5 cm apart.
[0030] The length of the profiling base plate 10 and the profiling cover plate 20 can be designed according to the actual depth of the heat treatment furnace. It can be designed so that each profiling base plate 10 is individually placed with a row of workpieces (according to the foregoing, i.e., two are placed side by side), or it can be designed so that each profiling base plate 10 is placed with multiple rows of workpieces.
[0031] The contoured bottom plate 10 and the contoured cover plate 20 can be made of alumina ceramics, or other high temperature resistant ceramics.
[0032] Solid solution test
[0033] (1) Solution conditions: The workpiece is placed on a plate in a heat treatment furnace for solution treatment. The temperature is raised from room temperature to (1000-1075)°C at a rate of 4.5°C / min for vacuum heating. The temperature is maintained for 180 min. Then, ultra-high pressure rapid cooling is started to 80°C before being taken out of the furnace. The cooling time takes 20-30 min.
[0034] (2) The workpieces are placed on a conventional jig, a slotting jig, and a solid solution supporting jig in the embodiment of the present application, respectively.
[0035] (3) Carry out solution treatment under the above conditions, remove the workpiece after cooling, and compare the solution treatment effect.
[0036] The experimental results are as follows Figure 3 As shown in Table 1:
[0037] a. The conventional fixture placement method has serious deformation of straightness and flatness, and it is completely impossible to shape. The flatness deformation is 0.23mm and the straightness deformation is 0.16mm;
[0038] b. The placement of the slotting fixture can solve the straightness deformation, but the flatness deformation is uncontrollable. The flatness deformation is 0.12mm and the straightness deformation is 0.05mm.
[0039] c. The straightness deformation and plane deformation of the solid solution bearing jig of the present application are controllable. The morphology of the workpiece after solid solution is better than that of conventional jigs and slotting jigs. The flatness deformation is 0.05mm and the straightness deformation is 0.03mm.
[0040] Table 1 Workpiece straightness & flatness
[0041]
[0042] This application establishes a solid solution shrinkage deformation model to find the root cause of deformation, and uses a contoured bottom plate and a contoured cover plate to place the plate. The contoured bottom plate is used to position the workpiece to prevent foolishness, reduce the position movement during the turnover process, and provide contoured support for the workpiece during solid solution. In addition, by adding a contoured cover plate, the workpiece is limited from aggravating deformation during the high-temperature solid solution process, and the weight of the contoured cover plate further suppresses and corrects the workpiece, thereby reducing the shrinkage complexity of the thin strip porous wall structure (such as the hinge / shaft of a folding mobile phone), fundamentally solving the solid solution deformation problem and reducing production costs.
[0043] The solid solution bearing fixture of the present application includes a contoured bottom plate and a contoured cover plate; the contoured bottom plate is provided with a first bottom surface and a second bottom surface, the first bottom surface and the second bottom surface are separated by a positioning block, and the depth of the first bottom surface is greater than that of the second bottom surface; the contoured cover plate is provided with a first concave surface and a second concave surface. The solid solution bearing fixture of the present application minimizes the deformation of the solid solution product, improves the yield rate, and reduces the production cost. It can be mass-produced and is widely applicable to hinge (rotating shaft) parts with strip-shaped, porous, and thin-walled structures, providing more design solutions and inspiration for the future development of solid solution fixtures for such ultra-complex parts.
[0044] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims
1. A solid solution bearing tool, characterized in that: It includes a contoured bottom plate and a contoured cover plate; the contoured bottom plate is provided with a first bottom surface and a second bottom surface, the first bottom surface and the second bottom surface are separated by a positioning block, and the depth of the first bottom surface is greater than that of the second bottom surface; the contoured cover plate is provided with a first concave surface, a second concave surface and a third concave surface.
2. The solid solution supporting tool according to claim 1, characterized in that: The contoured bottom plate is 10 cm thick, the first bottom surface is 5.39±0.03 cm deep, the second bottom surface is 4.77±0.03 cm deep, and the positioning block is 4 cm deep.
3. The solid solution supporting tool according to claim 1, characterized in that: The first bottom surface is 3.74 cm away from one side edge of the contoured bottom plate, the first bottom surface is 20.7 cm wide, the second bottom surface is 14.19 cm wide, and the positioning block is 9.5 cm wide.
4. The solid solution supporting tool according to claim 1, characterized in that: The contoured cover plate is 5 cm thick, the first concave surface is 0.60±0.03 cm deep, the second concave surface is 0.14±0.03 cm deep, the third concave surface is 0.56±0.03 cm deep, the first edge close to the first concave surface is 0.14±0.03 cm deep, and the second edge close to the third concave surface is 0.15±0.03 cm deep.
5. The solid solution supporting tool according to claim 4, characterized in that: The first edge is 3.45 cm wide, the first concave surface is 3.5 cm wide, the second concave surface is 9.14 cm wide, the first concave surface and the second concave surface are spaced 7 cm apart, the second concave surface and the third concave surface are spaced 3.5 cm apart, and the second edge is 10.81 cm wide.
6. The solid solution supporting tool according to claim 1, characterized in that: Two profiling bottom plates are arranged side by side on the jig, and each profiling bottom plate is correspondingly provided with a profiling cover plate.
7. The solid solution supporting tool according to claim 1, characterized in that: The contoured bottom plate and the contoured cover plate are made of ceramic plates.
8. The solid solution supporting tool according to claim 7, characterized in that: The ceramic plate has a heat-resistant temperature greater than 1100°C.
9. The solid solution supporting tool according to claim 7, characterized in that: The ceramic is alumina ceramic.