Nickel powder porous felt board
By setting up a support mesh made of pure nickel in the nickel powder layer and sintering, the fragility problem of nickel plates is solved, and the large area, thinness and flexibility are improved, and it is suitable for large area nickel plate production and flexible applications.
Patent Information
- Application Number
- CN202420623296.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The nickel plate formed by sintered nickel powder has a brittle texture and is prone to breaking due to gravity when making a large area, which affects its use.
A support mesh made of pure nickel material is set in the nickel powder layer and fixed by the sintering process to enhance the structural stability and flexibility of the nickel plate, allowing the nickel plate to be slightly curled and curled during the production process.
Through the built-in support mesh, the area of the nickel plate can be large, long and thin, and its flexibility can be enhanced to avoid breakage, achieving large-area production and flexible use.
Smart Images
Figure CN222286690U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal powder sintering, in particular to a nickel powder porous felt plate. Background Art
[0002] Porous metal felt sheet is a metal filter material with a porous structure made of industrial high-purity metal powder through processes such as powder classification, screening, molding, sintering, and mechanical welding. Due to its unique porous structure and efficient filtration performance, it is widely used in many industrial fields such as the pharmaceutical industry, water treatment industry, food industry, bioengineering, and chemical industry. In the chemical industry, porous nickel sheets can be used to prepare efficient catalysts and reactors for chemical synthesis and separation operations. AEM (anion exchange membrane) alkaline water electrolysis hydrogen production uses polymer anion membrane as electrolyte and NiCoFe-LDH or NiCoFe-phosphide as electrocatalyst to complete water electrolysis and produce hydrogen and oxygen, and uses nickel plates with gas flow channels or surface-modified metals as pole plates, where the electrodes are composed of porous diffusion layers and catalyst layers.
[0003] Currently, nickel plates formed by sintering nickel powder are brittle. When large-area nickel plates are produced, they are easily broken in the middle due to the influence of gravity, which affects the use of the nickel plates. Utility Model Content
[0004] In view of the above problems, the utility model provides a nickel powder porous felt plate.
[0005] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:
[0006] A nickel powder porous felt plate is provided, comprising a nickel powder layer and a support net arranged on at least one side of the nickel powder layer, wherein the support net is provided with a plurality of mesh holes filled with nickel powder, and the support net is made of pure nickel.
[0007] Furthermore, the support mesh is any one of pure nickel woven mesh, pure nickel cut and drawn mesh, and pure nickel foam.
[0008] Furthermore, the nickel powder layer and the support mesh are formed and fixed by a sintering process.
[0009] Furthermore, support meshes are provided on both sides of the nickel powder layer.
[0010] Furthermore, overlapping parts protruding from the nickel powder layer are arranged at intervals on the parallel edges of the support net, overlapping grooves matching the overlapping parts are arranged at intervals on the parallel edges of the support net, and the overlapping parts and the overlapping grooves are arranged alternately.
[0011] Furthermore, the overlapping portions on the same side of the two supporting nets are offset from each other, and the overlapping portion on one supporting net can be folded and accommodated in the overlapping groove on the same side of the other supporting net.
[0012] The beneficial effects of the utility model are as follows: a support net made of pure nickel is built into the traditional nickel powder sintered nickel plate, so that the nickel powder is filled into the mesh holes in the support net. The sintered nickel plate has a higher structural stability than the traditional nickel plate through the support of the support net, and the production area of the nickel plate can be larger, longer and thinner. At the same time, the flexibility of the nickel plate is enhanced, and it can be slightly curled, which is convenient for winding the nickel plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the cross-sectional structure of the nickel powder porous felt plate of Example 1 of the present application.
[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the nickel powder porous felt plate of Example 2 of the present application.
[0015] Figure 3 This is a schematic diagram of the overall structure of the nickel powder porous felt plate of Example 3 of the present application.
[0016] Among them, 1. nickel powder layer; 2. support mesh; 21. overlapping part; 22. overlapping groove; 23. mesh hole. DETAILED DESCRIPTION
[0017] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0018] Example 1
[0019] The present application embodiment discloses a nickel powder porous felt plate, referring to Figure 1 , including a support net 2 and a nickel powder layer 1, the nickel powder layer 1 is integrally fixed on one surface of the support net 2, a plurality of mesh holes 23 are formed through the support net 2, the mesh holes 23 are filled with nickel powder, and the support net 2 is made of pure nickel material.
[0020] The nickel powder layer 1 is composed of pure nickel powder. After the support net 2 and the nickel powder layer 1 are set, the support net 2 and the nickel powder layer 1 are combined and fixed into one through a sintering process. The porous structure of the nickel felt is maintained by the nickel powder layer 1, and the toughness of the nickel felt is enhanced by the support net 2, so that the nickel felt is not easy to break. Traditional nickel felt cannot be made into large-area flat plates. Usually, its length and width are less than 500mm, and in order to keep the flat plate structure from breaking, the thick soil cannot be made thin, and generally cannot be less than 0.5mm. After adding the support net 2, the nickel felt area can be infinitely increased. According to the thickness of the support net 2 used, the nickel felt thickness can reach 0.1mm at the bottom. The nickel felt with the support net 2 is flexible and can achieve the bending of the nickel felt.
[0021] The support mesh 2 can be any one of a pure nickel woven mesh, a pure nickel cut and drawn mesh, and a pure nickel foam.
[0022] In the embodiment of the present application, only one side of the nickel powder layer 1 is provided with a support mesh 2 .
[0023] Example 2
[0024] Reference Figure 2 The difference between Example 2 and Example 1 is that the number of supporting nets 2 is different.
[0025] In the embodiment of the present application, support nets 2 are provided on both sides of the nickel powder layer 1. The double-sided support nets 2 reinforce the nickel powder layer 1 from both sides of the nickel powder layer 1 at the same time to prevent the nickel powder from falling off during flexible bending, thereby improving the fixing effect on the nickel powder layer 1.
[0026] Example 3
[0027] Reference Figure 3 The difference between Example 3 and Example 1 is that a lap joint 21 is provided on the supporting net 2.
[0028] Specifically, overlapping portions 21 protruding from the nickel powder layer 1 are arranged at intervals on the parallel edges of the support net 2, overlapping grooves 22 adapted to the overlapping portions 21 are arranged at intervals on the parallel edges of the support net 2, and the overlapping portions 21 and the overlapping grooves 22 are arranged alternately.
[0029] During production, small-area felt boards can be produced specifically, and the felt boards can be spliced on site according to actual usage. When multiple pieces of nickel powder porous felt boards are spliced, the overlapping portion 21 on the support mesh 2 is overlapped with the overlapping groove 22 on the adjacent nickel plate, and then the splicing part of the nickel plate is sintered, so that the contact area between the two nickel plates during splicing and sintering can be increased, thereby improving the splicing stability.
[0030] Furthermore, the overlapped portions 21 on the same side of the two support nets 2 are mutually offset, so that the overlapped portion 21 on one support net 2 can be folded and accommodated in the overlapped groove 22 on the same side of the other support net 2. By folding the protruding overlapped portion 21 of the support net 2 at the end of the nickel plate and fitting it into the overlapped groove 22 on the other side, and then sintering the edge of the end of the nickel plate by a flame spray gun, the end of the nickel plate can be kept flat.
[0031] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A nickel powder porous felt plate, characterized in that: It comprises a nickel powder layer (1) and a support net (2) arranged on both sides of the nickel powder layer (1), the support net (2) is provided with a plurality of mesh holes (23), the mesh holes (23) are filled with nickel powder, and the support net (2) is made of pure nickel; The supporting nets (2) are provided with overlapping portions (21) protruding from the nickel powder layer (1) at intervals on the mutually parallel edges on both sides, and overlapping grooves (22) adapted to the overlapping portions (21) are provided at intervals on the mutually parallel edges on both sides of the supporting nets (2). The overlapping portions (21) and the overlapping grooves (22) are arranged alternately, and the overlapping portions (21) on the same side of the two supporting nets (2) are mutually offset, and the overlapping portion (21) on one supporting net (2) can be folded and accommodated in the overlapping groove (22) on the same side of the other supporting net (2).
2. A nickel powder porous felt plate according to claim 1, characterized in that: The support mesh (2) is any one of a pure nickel woven mesh and a pure nickel cut and drawn mesh.
3. A nickel powder porous felt plate according to claim 1, characterized in that: The nickel powder layer (1) and the support mesh (2) are formed and fixed by a sintering process.