Framework fabrication methods and frameworks

Abstract

This application provides a method for manufacturing a frame and the frame itself, wherein a blank is hot-forged to form the frame. The method and the frame manufactured in this application can reduce material costs and ensure frame flatness.

Description

Technical Field

[0001] This application relates to the field of frame manufacturing technology, specifically to a method for preparing a frame and the frame itself. Background Technology

[0002] Currently, thin-film technology is generally used for display panels to design electronic circuits. In this process, thin films can be patterned using lasers, and then the pattern is completed using etching techniques such as etching solutions. For this purpose, thin films are processed into frame-shaped jig masks, which require precision machining due to their processing characteristics. Furthermore, due to the processing characteristics, including the presence of chemicals and high-temperature operating environments, jig masks typically use Invar (an alloy with a low coefficient of thermal expansion) as the main material.

[0003] However, the disadvantage of manufacturing the frame in the prior art is that the unwanted parts are removed from the material and processed from the inside, so only 40% to 50% of the raw materials can be used. If a rectangular frame is manufactured by welding the various materials (see figure), the material inhomogeneity and the distortion of the flatness of the entire frame due to welding or assembly make it difficult to ensure the flatness of the entire mask plate (frame) after the product is processed.

[0004] Therefore, how to provide a method for preparing a frame that can reduce material costs and ensure frame flatness has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] Therefore, the technical problem to be solved by this application is to provide a method for preparing a frame that can reduce material costs and ensure the flatness of the frame.

[0006] To address the aforementioned problems, this application provides a method for preparing a frame, comprising the following steps: hot forging a blank to form a frame.

[0007] Furthermore, the process of hot forging the billet includes the following steps: Step (1): The billet is subjected to a first overheat forging to form a preliminary ring structure; Step (2): The preliminary ring structure is forged using a second overheating process to form a frame.

[0008] Furthermore, step (2) is repeated at least once.

[0009] Furthermore, step (2) is repeated three times.

[0010] Furthermore, in step (2), four positioning structures are placed inside the initial annular structure for a second overheat forging.

[0011] Furthermore, the positioning structure is rod-shaped or cuboid.

[0012] Furthermore, the blank is plate-shaped.

[0013] This application also discloses a framework, which is prepared by the framework preparation method described above.

[0014] Furthermore, the frame is a mask plate.

[0015] Furthermore, the photomask is an OLED photomask.

[0016] This application provides a method for fabricating the frame and the frame itself. This application can reduce material costs and ensure the flatness of the frame. Attached Figure Description

[0017] Figure 1 This is a flowchart illustrating the framework creation method of existing technologies; Figure 2 The workflow of the preparation method for this application framework; Figure 3 This is a process diagram illustrating the preparation method of the framework of this application. Detailed Implementation

[0018] See also Figure 2-3 As shown, a method for preparing a frame includes the following steps: hot forging a blank to form a frame.

[0019] This application also discloses some embodiments in which the billet is subjected to overheat forging, including the following steps: Step (1): The billet is subjected to a first overheat forging to form a preliminary ring structure; Step (2): The preliminary ring structure is forged using a second overheating process to form a frame.

[0020] This application uses a first hot forging process to form a preliminary ring structure from a flat plate; then, a second hot forging process is used to form the ring into a frame.

[0021] Therefore, this application can form a primary ring shape from square or rod-shaped raw materials through hot forging, and then form a square frame shape through a subsequent secondary hot forging process. This has the significant effect of reducing material costs while improving the rigidity, toughness and other properties of the material through the forging process.

[0022] This application also discloses some embodiments in which step (2) is repeated at least once.

[0023] This application also discloses some embodiments in which step (2) is repeated three times. The second overheat forging step is divided into three processes, characterized in that a square frame is formed sequentially from a ring.

[0024] This application also discloses some embodiments in which, during step (2), four positioning structures are placed inside the initial annular structure for a second overheat forging.

[0025] This application also discloses some embodiments in which the positioning structure is rod-shaped or cuboid.

[0026] This application also discloses some embodiments in which the blank is plate-shaped. The plate-shaped blank is a square plate or a round rod.

[0027] This application also discloses a framework, which is prepared by the framework preparation method described above.

[0028] This application also discloses some embodiments, in which the frame is a mask plate.

[0029] This application also discloses some embodiments, in which the mask is an OLED mask.

[0030] In this application, a method is used to form a primary ring by hot forging from a square or rod-shaped raw material (bulk), and then form a square mask plate (frame) shape through a subsequent hot forging step. This method reduces material costs while improving the material properties, namely rigidity and toughness, through the forging process.

[0031] The subsequent secondary hot forging process is subdivided into three processes, and the first process is to form a near square shape from a ring shape through forging, but the inner and outer corners are curved.

[0032] At this point, four circular rods are vertically installed inside the ring and are formed into a near-square shape by applying force to the outside, with both the inside and outside of the edges forming a curved shape.

[0033] The second process involves elongating the square to form a rectangle, reducing the inner and outer curves of the corners. At this point, four square rods are vertically installed inside the ring, and by applying force outwards, they are shaped to resemble a near-rectangle, with the edges also reduced in shape to minimize inner and outer curvature. The third process further elongates the rectangle, forming a rectangular shape with right angles at the corners, resulting in a finished rectangular mask (frame). Both the first and second forging processes are performed at a temperature of 1150~1350℃, with an optimal temperature of 1250℃. The material used in this application is an alloy metal with the following composition: C 0~0.10%, Si 0~0.40%, Mn 0~0.50%, S 0~0.025%, P 0~0.025%, Ni 35.0%~37.0%, and the remainder being Fe.

[0034] Therefore, the present invention forms a primary ring shape by hot forging from a square or rod-shaped raw material, and then forms a square mask plate (frame) shape through a subsequent forging process. This has the significant effect of reducing material costs while improving the rigidity, toughness and other properties of the material through the forging process.

[0035] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0036] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A method for preparing a framework, characterized in that, The process includes the following steps: the billet is forged by overheating to form a frame.

2. The method for preparing the framework according to claim 1, characterized in that, The process of hot forging the billet includes the following steps: Step (1): The billet is subjected to a first overheat forging to form a preliminary ring structure; Step (2): The preliminary annular structure is forged using a second overheating process to form a frame.

3. The method for preparing the framework according to claim 2, characterized in that, Step (2) is repeated at least once.

4. The method for preparing the framework according to claim 3, characterized in that, Step (2) is repeated three times.

5. The method for preparing the framework according to claim 2, characterized in that, In step (2), four positioning structures are placed inside the initial annular structure for a second overheat forging.

6. The method for preparing the framework according to claim 5, characterized in that, The positioning structure is rod-shaped or cuboid.

7. The method for preparing the framework according to claim 1, characterized in that, The blank is plate-shaped.

8. A frame, characterized in that, The framework is prepared by the framework preparation method according to any one of claims 1-7.

9. The frame according to claim 8, characterized in that, The frame is a mask plate.

10. The frame according to claim 9, characterized in that, The mask is an OLED mask.

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