Metal belt radial laminated tooth-shaped metal framework for manufacturing semimetal composite sealing gasket
By designing a radially stacked toothed metal skeleton with metal strips, the risk of breakage and parallelism issues caused by poor welding quality are resolved, thereby improving the parallelism of the sealing surface and the compression rebound performance, and enhancing the applicability and durability of the sealing gasket.
Patent Information
- Application Number
- CN202422360185.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, the poor welding quality of the toothed metal skeleton leads to a high risk of fracture, parallelism is difficult to guarantee, and it lacks compression resilience, which limits the applicability of the sealing gasket in high temperature, high pressure and ultra-low temperature vacuum environments.
A radially stacked toothed metal skeleton is adopted, which is formed by alternating layers of V-shaped thick and thin metal strips and welding them together to ensure the parallelism of the sealing surface and enhance the compression and rebound performance.
It improves the parallelism of the sealing surface, reduces the risk of breakage, enhances the compression resilience of the composite sealing gasket, and improves the sealing reliability and durability in different environments.
Smart Images
Figure CN223498663U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semi-metallic composite gasket technology, and in particular to a radially stacked toothed metal skeleton of metal strips for manufacturing semi-metallic composite gaskets. Background Technology
[0002] In the field of flange static sealing technology, toothed composite gaskets are a widely used type of sealing gasket. Toothed composite gaskets are made of a toothed metal skeleton with non-metallic layers on both sides. The flexible material combination and the combination of rigidity and flexibility make toothed composite gaskets suitable for a wide range of applications, capable of withstanding high temperatures and pressures, as well as ultra-low temperatures and vacuum conditions, and exhibiting strong media adaptability. Under current technological conditions, the toothed metal skeleton is machined from metal plates using a machine tool. When the radial dimension of the toothed metal skeleton is larger than the width of the metal plate, it is made by splicing and welding two or more metal plates together to form a large metal plate of the required size, or by bending and welding metal strips into a ring, and then machining it using a machine tool. The welding quality and height treatment of the welded parts of the metal plates (strips) are closely related to the quality of the toothed metal skeleton. Poor welding quality may lead to breakage of the toothed metal skeleton, seriously affecting sealing safety; inadequate height treatment of the welded parts may result in insufficient local stress in the toothed composite gasket after the flange is tightened, potentially leading to sealing failure. Machine tool accuracy, workpiece fixture accuracy, and machining operation level have a close impact on the parallelism of the two sides of the toothed metal skeleton, which is an important quality indicator of the toothed metal skeleton. Toothed metal skeletons machined from sheet metal (strips) lack compressive resilience; therefore, toothed composite gaskets under current technological conditions are limited in applications requiring good elastic compensation performance. Non-circular toothed metal skeletons cannot be machined from sheet metal (strips) and can only be processed using costly processes such as laser engraving. Therefore, we introduce a radially stacked toothed metal skeleton made of metal strips for manufacturing semi-metallic composite sealing gaskets. Utility Model Content
[0003] The main objective of this invention is to provide a radially stacked toothed metal skeleton for manufacturing semi-metallic composite gaskets, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A radially stacked toothed metal skeleton for manufacturing semi-metallic composite gaskets includes an inner lining shaped metal ring. A first V-shaped thick metal strip layer is fixed to the outer surface of the inner lining shaped metal ring. A first V-shaped thin metal strip layer is fixedly connected to the outer surface of the first V-shaped thick metal strip layer. A second V-shaped thick metal strip layer is fixedly connected to the outer surface of the first V-shaped thin metal strip layer. A second V-shaped thin metal strip layer is fixedly connected to the outer surface of the second V-shaped thick metal strip layer. A third V-shaped thin metal strip layer is fixedly connected to the outer surface of the second V-shaped thin metal strip layer. The outer surface of the third V-shaped thin metal strip layer is fixedly connected to a fourth V-shaped thick metal strip layer, the outer surface of the fourth V-shaped thick metal strip layer is fixedly connected to a fourth V-shaped thin metal strip layer, the outer surface of the fourth V-shaped thick metal strip layer is fixedly connected to a fifth V-shaped thick metal strip layer, the outer surface of the fifth V-shaped thick metal strip layer is fixedly connected to a fifth V-shaped thin metal strip layer, the outer surface of the fifth V-shaped thin metal strip layer is fixedly connected to a sixth V-shaped thick metal strip layer, the outer surface of the sixth V-shaped thick metal strip layer is fixedly connected to a sixth V-shaped thin metal strip layer, and the outer surface of the sixth V-shaped thin metal strip layer is fixedly connected to a seventh V-shaped thick metal strip layer.
[0006] Both the thick and thin metal strip layers have V-shaped cross-sections. The V-shaped height of the thick metal strip layer is greater than that of the thin metal strip layer. The thick and thin metal strip layers are radially alternately stacked to form a toothed metal skeleton with alternating grooves. The V-shaped height of the thick metal strip with a V-shaped cross-section is greater than that of the thin metal strip with a V-shaped cross-section.
[0007] Preferably, the first, second, third, fourth, fifth, sixth, and seventh V-shaped thick metal strip rings are made by winding thick metal strips with a V-shaped cross-section with a height greater than 0.5 mm, and adjacent V-shaped thick metal strip rings are welded and fixed.
[0008] Preferably, the first, second, third, fourth, fifth, and sixth V-shaped thin metal strip layers are made by winding thin metal strips with a V-shaped cross-section and a height of less than 0.3 mm, and adjacent V-shaped thin metal strip layers are welded and fixed.
[0009] Preferably, the first V-shaped thick metal strip layer, the second V-shaped thick metal strip layer, the third V-shaped thick metal strip layer, the fourth V-shaped thick metal strip layer, the fifth V-shaped thick metal strip layer, the sixth V-shaped thick metal strip layer, and the seventh V-shaped thick metal strip layer are radially alternately stacked with the first V-shaped thin metal strip layer, the second V-shaped thin metal strip layer, the third V-shaped thin metal strip layer, the fourth V-shaped thin metal strip layer, the fifth V-shaped thin metal strip layer, and the sixth V-shaped thin metal strip layer.
[0010] Preferably, the inner lining shaping metal ring is circular, and the height of the inner lining shaping metal ring is smaller than the V-shaped height of the thick metal strip layer.
[0011] Preferably, the first V-shaped thick metal strip layer is welded to the inner lining shaping metal ring, and the thick metal strip layer is welded to the thin metal strip layer.
[0012] Preferably, the inner lining shaped metal ring, the first V-shaped thick metal strip layer, the second V-shaped thick metal strip layer, the third V-shaped thick metal strip layer, the fourth V-shaped thick metal strip layer, the fifth V-shaped thick metal strip layer, the sixth V-shaped thick metal strip layer, the seventh V-shaped thick metal strip layer, the first V-shaped thin metal strip layer, the second V-shaped thin metal strip layer, the third V-shaped thin metal strip layer, the fourth V-shaped thin metal strip layer, the fifth V-shaped thin metal strip layer, and the sixth V-shaped thin metal strip layer are parallel.
[0013] Preferably, the V-shaped height of the thick metal strips with V-shaped cross-sections used in the No. 1 and No. 7 V-shaped thick metal strip rings on the inner and outer sides of the toothed metal skeleton is greater than the V-shaped height of the thick metal strips with V-shaped cross-sections used in other thick metal strip rings.
[0014] This utility model has the following beneficial effects:
[0015] By radially alternatingly stacking and welding layers of thick V-shaped metal strips (layers 1, 2, 3, 4, 5, 6, and 7) with thin V-shaped metal strips (layers 1, 2, 3, 4, 5, and 6) onto the outside of the inner lining shaped metal ring, the flatness and parallelism of the toothed metal skeleton sealing surface are improved, the gasket sealing is more reliable, and the risk of breakage is reduced. Furthermore, the radially stacked toothed metal skeleton possesses compressibility and resilience not found in traditionally processed metal sheet toothed metal skeletons, which is beneficial for improving the compression and resilience performance of composite sealing gaskets. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the overall structure of a radially stacked toothed metal skeleton for manufacturing a semi-metallic composite sealing gasket according to the present invention.
[0017] In the diagram: A1, No. 1 V-shaped thick metal strip layer; A2, No. 2 V-shaped thick metal strip layer; A3, No. 3 V-shaped thick metal strip layer; A4, No. 4 V-shaped thick metal strip layer; A5, No. 5 V-shaped thick metal strip layer; A6, No. 6 V-shaped thick metal strip layer; A7, No. 7 V-shaped thick metal strip layer; B1, No. 1 V-shaped thin metal strip layer; B2, No. 2 V-shaped thin metal strip layer; B3, No. 3 V-shaped thin metal strip layer; B4, No. 4 V-shaped thin metal strip layer; B5, No. 5 V-shaped thin metal strip layer; B6, No. 6 V-shaped thin metal strip layer; C, inner lining shaped metal ring. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Please see Figure 1 This utility model provides a technical solution:
[0022] A radially stacked toothed metal skeleton for manufacturing semi-metallic composite gaskets includes an inner lining shaped metal ring C. A first V-shaped thick metal strip layer A1 is fixed to the outer surface of the inner lining shaped metal ring C. A first V-shaped thin metal strip layer B1 is fixedly connected to the outer surface of the first V-shaped thick metal strip layer A1. A second V-shaped thick metal strip layer A2 is fixedly connected to the outer surface of the first V-shaped thin metal strip layer B2. A third V-shaped thick metal strip layer A3 is fixedly connected to the outer surface of the second V-shaped thin metal strip layer B3. A fourth V-shaped thick metal strip layer A4 is fixedly connected to the outer surface of the third V-shaped thin metal strip layer B3. A fourth V-shaped thin metal strip layer B4 is fixedly connected to the outer surface of the fourth V-shaped thick metal strip layer A4. A fifth V-shaped thick metal strip layer A5 is fixedly connected to the outer surface of the fourth V-shaped thick metal strip layer A5. A fifth V-shaped thin metal strip layer B5 is fixedly connected to the outer surface of the fifth V-shaped thin metal strip layer B5. A sixth V-shaped thick metal strip layer A6 is fixedly connected to the outer surface of the fifth V-shaped thin metal strip layer B6. A seventh V-shaped thick metal strip layer A7 is fixedly connected to the outer surface of the sixth V-shaped thin metal strip layer B6.
[0023] In this embodiment, the first V-shaped thick metal strip layer A1, the second V-shaped thick metal strip layer A2, the third V-shaped thick metal strip layer A3, the fourth V-shaped thick metal strip layer A4, the fifth V-shaped thick metal strip layer A5, the sixth V-shaped thick metal strip layer A6, and the seventh V-shaped thick metal strip layer A7 are made by winding thick metal strips with a V-shaped cross-section and a height greater than 0.5 mm, and adjacent V-shaped thick metal strips are welded and fixed; the first V-shaped thin metal strip layer B1, the second V-shaped thin metal strip layer B2, the third V-shaped thin metal strip layer B3, the fourth V-shaped thin metal strip layer B4, and the fifth V-shaped thin metal strip layer A7 are made by winding thick metal strips with a height greater than 0.5 mm, and adjacent V-shaped thin metal strips are welded and fixed; Thin metal strip layer B5 and No. 6 V-shaped thin metal strip layer B6 are made by winding thin metal strips with a V-shaped cross-section and a height of less than 0.3 mm, and adjacent V-shaped thin metal strips are welded and fixed together; No. 1 V-shaped thick metal strip layer A1, No. 2 V-shaped thick metal strip layer A2, No. 3 V-shaped thick metal strip layer A3, No. 4 V-shaped thick metal strip layer A4, No. 5 V-shaped thick metal strip layer A5, No. 6 V-shaped thick metal strip layer A6, and No. 7 V-shaped thick metal strip layer A7 are connected to No. 1 V-shaped thin metal strip layer B1, No. 2 V-shaped thin metal strip layer B2, and No. 3 V-shaped thin metal strip layer B3. Layers B4, B5, and B6 of the fourth-order V-shaped thin metal strip are radially alternately stacked; the inner lining shaped metal ring C is circular, and its height is smaller than the V-shaped height of the thick metal strip layer; the first-order V-shaped thick metal strip layer A1 is welded to the inner lining shaped metal ring C, and the thick metal strip layer is welded to the thin metal strip layer; the inner lining shaped metal ring C, the first-order V-shaped thick metal strip layer A1, the second-order V-shaped thick metal strip layer A2, the third-order V-shaped thick metal strip layer A3, the fourth-order V-shaped thick metal strip layer A4, and the fifth-order V-shaped thick metal strip layer... A5, A6, A7, B1, B2, B3, B4, B5, and B6 are parallel to each other; the V-shaped cross-section thick metal strips used in the inner diameter side and outer side of the toothed metal skeleton, specifically in the A1 and A7 V-shaped thick metal strip layers, have a greater V-shaped height than those used in the other thick metal strip layers.
[0024] It should be noted that this utility model describes a radially stacked toothed metal skeleton for manufacturing semi-metallic composite sealing gaskets, which consists of a first V-shaped thick metal strip layer A1, a second V-shaped thick metal strip layer A2, a third V-shaped thick metal strip layer A3, a fourth V-shaped thick metal strip layer A4, a fifth V-shaped thick metal strip layer A5, a sixth V-shaped thick metal strip layer A6, a seventh V-shaped thick metal strip layer A7, a first V-shaped thin metal strip layer B1, and a second V-shaped thin metal strip layer. Layers B2, B3, B4, B5, and B6 are radially and alternately layered and welded onto the outside of the inner lining shaped metal ring C. This results in better flatness and parallelism of the toothed metal skeleton sealing surface, more reliable gasket sealing, and reduced risk of breakage. It also endows the radially layered toothed metal skeleton with unique compressibility and resilience, characteristics that are difficult to achieve with traditional sheet metal toothed metal skeletons. This significantly enhances the compression and resilience performance of the composite sealing gasket, enabling it to exhibit excellent sealing performance and durability in various application environments.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A radially stacked toothed metal skeleton for manufacturing semi-metallic composite gaskets, comprising an inner lining shaped metal ring (C), characterized in that: A first V-shaped thick metal band layer (A1) is fixed to the outer surface of the inner lining shaped metal ring (C). A first V-shaped thin metal band layer (B1) is fixedly connected to the outer surface of the first V-shaped thick metal band layer (A1). A second V-shaped thick metal band layer (A2) is fixedly connected to the outer surface of the first V-shaped thin metal band layer (B1). A second V-shaped thin metal band layer (B2) is fixedly connected to the outer surface of the second V-shaped thick metal band layer (A2). A third V-shaped thick metal band layer (A3) is fixedly connected to the outer surface of the third V-shaped thick metal band layer (A3). A third V-shaped thin metal band layer (B3) is fixedly connected to the outer surface of the third V-shaped thin metal band layer (B3). A fourth V-shaped thick metal strip layer (A4) is attached. A fourth V-shaped thin metal strip layer (B4) is fixedly connected to the outer surface of the fourth V-shaped thick metal strip layer (A4). A fifth V-shaped thick metal strip layer (A5) is fixedly connected to the outer surface of the fourth V-shaped thick metal strip layer (A5). A fifth V-shaped thin metal strip layer (B5) is fixedly connected to the outer surface of the fifth V-shaped thick metal strip layer (A5). A sixth V-shaped thick metal strip layer (A6) is fixedly connected to the outer surface of the fifth V-shaped thin metal strip layer (B5). A sixth V-shaped thin metal strip layer (B6) is fixedly connected to the outer surface of the sixth V-shaped thick metal strip layer (A6). A seventh V-shaped thick metal strip layer (A7) is fixedly connected to the outer surface of the sixth V-shaped thin metal strip layer (B6).
2. The radially stacked toothed metal skeleton of metal strips for manufacturing semi-metallic composite gaskets according to claim 1, characterized in that: The first V-shaped thick metal strip ring (A1), the second V-shaped thick metal strip ring (A2), the third V-shaped thick metal strip ring (A3), the fourth V-shaped thick metal strip ring (A4), the fifth V-shaped thick metal strip ring (A5), the sixth V-shaped thick metal strip ring (A6), and the seventh V-shaped thick metal strip ring (A7) are made by winding thick metal strips with a V-shaped cross-section with a height greater than 0.5 mm, and adjacent V-shaped thick metal strip rings are welded and fixed.
3. The radially stacked toothed metal skeleton of metal strips for manufacturing semi-metallic composite gaskets according to claim 1, characterized in that: The first V-shaped thin metal strip layer (B1), the second V-shaped thin metal strip layer (B2), the third V-shaped thin metal strip layer (B3), the fourth V-shaped thin metal strip layer (B4), the fifth V-shaped thin metal strip layer (B5), and the sixth V-shaped thin metal strip layer (B6) are made by winding thin metal strips with a V-shaped cross-section with a height of less than 0.3 mm, and adjacent V-shaped thin metal strips are welded and fixed.
4. The radially stacked toothed metal skeleton of metal strips for manufacturing semi-metallic composite gaskets according to claim 1, characterized in that: The first V-shaped thick metal strip layer (A1), the second V-shaped thick metal strip layer (A2), the third V-shaped thick metal strip layer (A3), the fourth V-shaped thick metal strip layer (A4), the fifth V-shaped thick metal strip layer (A5), the sixth V-shaped thick metal strip layer (A6), and the seventh V-shaped thick metal strip layer (A7) are radially alternately stacked with the first V-shaped thin metal strip layer (B1), the second V-shaped thin metal strip layer (B2), the third V-shaped thin metal strip layer (B3), the fourth V-shaped thin metal strip layer (B4), the fifth V-shaped thin metal strip layer (B5), and the sixth V-shaped thin metal strip layer (B6).
5. The radially stacked toothed metal skeleton of metal strips for manufacturing semi-metallic composite gaskets according to claim 1, characterized in that: The inner lining shaped metal ring (C) is circular, and the height of the inner lining shaped metal ring (C) is smaller than the height of the V-shaped thick metal strip layer.
6. The radially stacked toothed metal skeleton of metal strips for manufacturing semi-metallic composite gaskets according to claim 1, characterized in that: The first V-shaped thick metal strip layer (A1) is welded to the inner lining shaped metal ring (C), and the thick metal strip layer is welded to the thin metal strip layer.
7. The radially stacked toothed metal skeleton of metal strips for manufacturing semi-metallic composite gaskets according to claim 1, characterized in that: The inner lining shaped metal ring (C), the first V-shaped thick metal strip layer (A1), the second V-shaped thick metal strip layer (A2), the third V-shaped thick metal strip layer (A3), the fourth V-shaped thick metal strip layer (A4), the fifth V-shaped thick metal strip layer (A5), the sixth V-shaped thick metal strip layer (A6), the seventh V-shaped thick metal strip layer (A7), the first V-shaped thin metal strip layer (B1), the second V-shaped thin metal strip layer (B2), the third V-shaped thin metal strip layer (B3), the fourth V-shaped thin metal strip layer (B4), the fifth V-shaped thin metal strip layer (B5), and the sixth V-shaped thin metal strip layer (B6) are parallel.
8. The radially stacked toothed metal skeleton of metal strips for manufacturing semi-metallic composite gaskets according to claim 1, characterized in that: The V-shaped height of the thick metal strips with V-shaped cross-sections used in the No. 1 V-shaped thick metal strip ring layer (A1) and the No. 7 V-shaped thick metal strip ring layer (A7) on the inner diameter side and outer side of the toothed metal skeleton is greater than the V-shaped height of the thick metal strips with V-shaped cross-sections used in other thick metal strip ring layers.