High precision powder sintered disc

Abstract

The utility model discloses a high-precision powder sintering disc, relate to powder sintering filter element technical field. The utility model discloses a disc body, the surface of disc body is provided with protection subassembly, the disc body includes the protection layer, the bottom of protection layer is provided with filter layer, the surface of filter layer is opened with filter hole, the inside diameter of filter hole is 0.2 micrometre, the material quality of disc body is pure titanium. The utility model solves the core problem of low filtering precision of traditional product, has excellent corrosion resistance simultaneously, and the filter layer is equipped with high-precision filter hole, can high -efficiently filter the very tiny impurity in medium, and the filtering effect is greatly promoted, and the metal titanium material is adopted, and the material quality is not only high in strength and toughness, but also can form dense passivation oxide film on the surface, can resist the corrosion of chloride, seawater and various acid alkali (except strong reducing acid such as hot concentrated hydrochloric acid, hydrofluoric acid), prolongs the service life.

Description

Technical Field

[0001] This utility model belongs to the technical field of powder sintering filter elements, and in particular relates to high-precision powder sintering discs. Background Technology

[0002] Powder sintered discs are a commonly used porous filter element. The core preparation principle is to mix metal powder (such as stainless steel powder, titanium powder, etc.) or non-metal powder (such as ceramic powder, polymer powder, etc.) in a specific ratio, press them into a disc-shaped blank through a mold, and then use a high-temperature sintering process to form a metallurgical bond or physical bond between the powder particles, ultimately forming a disc-shaped filter component with a uniform porous structure. Existing powder sintered discs have low filtration accuracy, and their structural design is mostly flat or simple arc-shaped. The overall thickness of the disc is uniform (usually 3-8mm) and no reinforcement structure is set. In actual use, when the fluid pressure fluctuates or is subjected to external force impact during installation and disassembly, the disc is prone to local stress concentration, which leads to deformation (such as edge warping and center depression). In severe cases, it may even break, which not only causes the filter element to fail, but may also cause the broken powder particles to mix into the filtered medium, causing secondary pollution. To address these issues, we offer high-precision powder sintering discs. Utility Model Content

[0003] The purpose of this invention is to provide a high-precision powder sintered disc. By combining the disc body and the protective components, it solves the problems of low filtration accuracy and strength, poor filtration effect, and easy deformation or even breakage of existing sintered discs due to external forces.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0005] This utility model relates to a high-precision powder sintered disc, comprising a disc body, a protective component on the surface of the disc body, a protective layer, a filter layer at the bottom of the protective layer, filter holes on the surface of the filter layer with an inner diameter of 0.2 μm, the disc body being made of pure titanium, a flow distribution layer at the bottom of the filter layer, and a protective ring with its inner wall fixedly connected to the surface of the filter layer, and a support plate fixedly connected to the bottom of the protective ring.

[0006] The present invention is further configured such that a support ring is fixedly connected to the top of the support plate, the top of the support ring is fixedly connected to the bottom of the diversion layer, and multiple support rings are provided on the top of the support plate. The tops of the multiple support rings respectively support the bottom of the diversion layer, which can provide stable support for the bottom of the diversion plate without affecting the performance of the diversion layer.

[0007] The present invention is further configured such that a connecting ring is fixedly connected to the edge of the top of the diversion layer. The top of the connecting ring is flared, and the bottom of the support ring is constricted. The connecting ring not only supports the filter layer at the top of the diversion layer, but also leaves a gap between the diversion layer and the filter layer to prevent the filter layer from sticking to the diversion layer and affecting the flow of the medium. In addition, the special design of the support ring can guide the medium.

[0008] The present invention is further provided that an isolation ring is fixedly connected to the top edge of the filter layer, and the top of the isolation ring is fixedly connected to the bottom of the protective layer. The isolation ring can support the filter layer and the protective layer, so that there is a certain gap between the two, and avoid the protective layer from affecting the filtration performance of the filter layer.

[0009] The present invention is further provided with an anti-slip sleeve in the inner cavity of the disc body, and anti-slip particles are provided on the inner wall of the anti-slip sleeve. The anti-slip sleeve can improve the friction of the inner cavity of the disc body and improve the installation stability of the disc body through the anti-slip performance of the anti-slip sleeve.

[0010] The present invention is further configured such that a reinforcing ring is provided in the inner cavity of the support plate, and the surface of the reinforcing ring is provided with a mesh. The reinforcing ring is located in the annular opening on the surface of the support plate, which can reduce the weight of the support plate without affecting the strength of the support plate.

[0011] The present invention is further configured such that the outer side of the isolation ring is fixedly connected to the inner wall of the protective ring, the material of the isolation ring is the same as the material of the protective layer, and the isolation ring and the protective ring are fixedly connected to form a wrap-around protective structure, which can support the protective layer and the filter layer while protecting the disc body and improving the overall strength of the disc body.

[0012] The present invention has the following beneficial effects.

[0013] 1. This utility model solves the core problem of low filtration accuracy in traditional products, while also possessing excellent corrosion resistance. Its filter layer is equipped with high-precision filter pores, which can efficiently filter extremely small impurities in the medium, greatly improving the filtration effect. Moreover, it is made of titanium metal, which not only has high strength and toughness, but can also form a dense passivated oxide film on the surface, which can withstand the corrosion of chlorides, seawater and various acids and alkalis (except for strong reducing acids such as hot concentrated hydrochloric acid and hydrofluoric acid), thus extending its service life.

[0014] 2. This utility model, through optimized structural design, completely improves the defects of traditional discs that are prone to deformation and breakage. The protective ring and the support plate form a wrap-around protective shell that encloses the disc body, significantly improving the overall strength. The multiple support rings can also provide stable support for the bottom of the diversion layer, which does not affect the diversion performance and can avoid local stress concentration when the fluid pressure fluctuates or is subjected to external impact. This effectively prevents the disc from warping at the edges, sinking in the center, or even breaking, thereby eliminating the problems of filtration failure and secondary pollution caused by breakage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 This is a three-dimensional view of a high-precision powder sintered disc.

[0017] Figure 2 For high-precision powder sintered discs Figure 1 A magnified view of a portion of point A in the middle.

[0018] Figure 3 Cross-sectional view of a high-precision powder sintered disc Figure 1 .

[0019] Figure 4 This is a schematic diagram of the distribution disk in a high-precision powder sintering disc.

[0020] Figure 5 Cross-sectional view of a high-precision powder sintered disc Figure 2 .

[0021] Figure 6 This is a schematic diagram of the support disk structure in a high-precision powder sintering disc.

[0022] Figure 7 For high-precision powder sintered discs Figure 6 A magnified view of a portion of point B in the middle.

[0023] In the attached diagram: 1. Disc body; 2. Protective components; 3. Protective layer; 4. Filter layer; 5. Filter holes; 6. Diverter layer; 201. Protective ring; 202. Support plate; 7. Support ring; 8. Connecting ring; 9. Isolation ring; 10. Anti-slip sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figure 1-7This utility model is a high-precision powder sintered disc, including a disc body 1, a protective component 2 on the surface of the disc body 1, a protective layer 3 on the disc body 1, a filter layer 4 at the bottom of the protective layer 3, filter holes 5 on the surface of the filter layer 4, the inner diameter of the filter holes 5 being 0.2μm, the disc body 1 being made of pure titanium, a flow distribution layer 6 at the bottom of the filter layer 4, and a protective ring 201 on the protective component 2. The inner wall of the protective ring 201 is fixedly connected to the surface of the filter layer 4, and a support plate 202 is fixedly connected to the bottom of the protective ring 201.

[0026] Specifically: After the medium flows through the opening on the surface of the protective layer 3 to the filter layer 4, the medium passes through the filter holes 5 on the surface of the filter layer 4. The high-precision filter holes 5 efficiently filter the medium, which can filter out extremely small impurities in the medium. Moreover, titanium metal has both high strength and high toughness, is impact-resistant, bend-resistant, and not easily broken. A dense passivated oxide film will form on the surface of titanium, which is resistant to chloride, seawater, and various acids and alkalis except for strong reducing acids such as hot concentrated hydrochloric acid and hydrofluoric acid. The protective shell structure composed of the protective ring 201 and the support plate 202 encloses the disc body 1, which can greatly improve the overall strength of the powder sintered disc.

[0027] A support ring 7 is fixedly connected to the top of the support plate 202. The top of the support ring 7 is fixedly connected to the bottom of the diversion layer 6. A connecting ring 8 is fixedly connected to the edge of the top of the diversion layer 6. The top of the connecting ring 8 is flared, and the bottom of the support ring 7 is constricted. An isolation ring 9 is fixedly connected to the edge of the top of the filter layer 4. The top of the isolation ring 9 is fixedly connected to the bottom of the protective layer 3. An anti-slip sleeve 10 is provided in the inner cavity of the disc body 1. The inner wall of the anti-slip sleeve 10 is provided with anti-slip particles. A reinforcing ring is provided in the inner cavity of the support plate 202. The surface of the reinforcing ring is provided with mesh holes. The outer side of the isolation ring 9 is fixedly connected to the inner wall of the protective ring 201. The material of the isolation ring 9 is the same as that of the protective layer 3.

[0028] Specifically: The top of the support plate 202 is equipped with multiple support rings 7, the tops of which support the bottom of the distribution layer 6, providing stable support to the bottom of the distribution plate without affecting the performance of the distribution layer 6. The connecting ring 8 not only supports the filter layer 4 at the top of the distribution layer 6 but also leaves a gap between the distribution layer 6 and the filter layer 4, preventing the filter layer 4 from being too close to the distribution layer 6 and affecting media flow. Furthermore, the special design of the support rings 7 guides the media. The isolation ring 9 supports the filter layer 4 and the protective layer 3, ensuring a certain distance between them. To prevent the protective layer 3 from affecting the filtration performance of the filter layer 4, the anti-slip sleeve 10 can increase the friction of the inner cavity of the disc body 1. The anti-slip performance of the anti-slip sleeve 10 improves the installation stability of the disc body 1. The reinforcing ring is set in the annular opening on the surface of the support plate 202, which can reduce the weight of the support plate 202 without affecting the strength of the support plate 202. The isolation ring 9 and the protective ring 201 are fixedly connected to form a wrap-around protective structure, which can protect the disc body 1 while supporting the protective layer 3 and the filter layer 4, and improve the overall strength of the disc body 1.

[0029] The working principle of this utility model is as follows: The powder sintered disc is installed on the filter structure, and the medium to be filtered is introduced. After the medium passes through the opening on the surface of the protective layer 3, it flows to the filter layer 4. After the medium passes through the filter holes 5 on the surface of the filter layer 4, the high-precision filter holes 5 perform efficient filtration of the medium, which can filter out extremely small impurities in the medium. Moreover, the titanium metal has both high strength and high toughness, is impact-resistant, bend-resistant, and not easily broken. A dense passivated oxide film will form on the titanium surface, which is resistant to chloride, seawater, and corrosion from various acids and alkalis except for strong reducing acids such as hot concentrated hydrochloric acid and hydrofluoric acid. The protective shell structure composed of the protective ring 201 and the support plate 202 encloses the disc body 1, which can greatly improve the overall strength of the powder sintered disc. The top of the multiple support rings 7 respectively supports the bottom of the distribution layer 6, which can stably support the bottom of the distribution plate without affecting the performance of the distribution layer 6.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A high-precision powder sintered disc, comprising a disc body (1), characterized in that: The surface of the disc body (1) is provided with a protective component (2), the disc body (1) includes a protective layer (3), a filter layer (4) is provided at the bottom of the protective layer (3), a filter hole (5) is opened on the surface of the filter layer (4), the inner diameter of the filter hole (5) is 0.2μm, the disc body (1) is made of pure titanium, and a flow divider layer (6) is provided at the bottom of the filter layer (4). The protective component (2) includes a protective ring (201), the inner wall of which is fixedly connected to the surface of the filter layer (4), and a support plate (202) is fixedly connected to the bottom of the protective ring (201).

2. The high-precision powder sintering disc according to claim 1, characterized in that: The top of the support plate (202) is fixedly connected to a support ring (7), and the top of the support ring (7) is fixedly connected to the bottom of the diversion layer (6).

3. The high-precision powder sintered disc according to claim 2, characterized in that: A connecting ring (8) is fixedly connected to the top edge of the diversion layer (6). The top of the connecting ring (8) is flared, and the bottom of the support ring (7) is constricted.

4. The high-precision powder sintered disc according to claim 1, characterized in that: An isolation ring (9) is fixedly connected to the top edge of the filter layer (4), and the top of the isolation ring (9) is fixedly connected to the bottom of the protective layer (3).

5. The high-precision powder sintered disc according to claim 1, characterized in that: The inner cavity of the disc body (1) is provided with an anti-slip sleeve (10), and the inner wall of the anti-slip sleeve (10) is provided with anti-slip particles.

6. The high-precision powder sintered disc according to claim 1, characterized in that: The inner cavity of the support plate (202) is provided with a reinforcing ring, and the surface of the reinforcing ring is provided with mesh holes.

7. The high-precision powder sintered disc according to claim 4, characterized in that: The outer side of the isolation ring (9) is fixedly connected to the inner wall of the protective ring (201), and the material of the isolation ring (9) is the same as that of the protective layer (3).

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