Aluminum meltblown reinforced mask plate for filter sandblasting pretreatment

Abstract

The application discloses an aluminum melt spraying reinforced film blocking plate for filter sand blasting pretreatment, which comprises a base layer and an aluminum melt spraying porous rough coating, the aluminum melt spraying porous rough coating is arranged on the upper surface of the base layer, the thickness of the aluminum melt spraying porous rough coating is 150-250 mu m, the porosity of the aluminum melt spraying porous rough coating is 8-12%, and the surface roughness of the aluminum melt spraying porous rough coating is 100-150 mu m. The aluminum melt spraying porous rough coating forms a porous rough coating on the surface of the base layer through an aluminum melt spraying process, which is a porous rough structure formed by high-speed atomization deposition of molten aluminum, can be closely attached to the working surface of the base layer, is combined with the base layer through mechanical engagement, is used for grabbing sand blasting dust to prevent the sand blasting dust from falling off and anchoring a redundant film layer of a plated film, can effectively solve the problem that the dust is easy to fall off, and thus can make sand blasting uniform, improve the adhesion of the film layer and reduce the point defect rate.

Description

Technical Field

[0001] This invention relates to the technical field of supporting components for filter manufacturing processes, and more specifically, to an aluminum melt-blasting reinforced baffle plate for filter sandblasting pretreatment. Background Technology

[0002] In the production of optical filters (including blue glass filters), sandblasting pretreatment and vacuum coating are the core processes. Special baffles are generally used during sandblasting pretreatment and vacuum coating. These baffles are used to shield non-processing areas, collect sandblasting dust and excess coating layer. The quality of the special baffles directly affects the coating accuracy and production yield of the optical filters.

[0003] Existing specialized baffles are mostly made of ordinary steel plates, with smooth and dense surfaces but lacking effective dust-collecting structures. This allows dust to easily fall off and contaminate the filter, and excess film layers are easily peeled off, leading to product defects. Currently, the industry cannot fundamentally solve the problem of easy dust fall-off, which results in uneven sandblasting, weak film adhesion, and a high rate of defective products. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to solve the problem of dust falling off easily, so as to make the sandblasting uniform, improve the adhesion of the film layer and reduce the defect rate.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solution: To address the aforementioned technical problems, this invention provides an aluminum blasting reinforced baffle plate for filter sandblasting pretreatment, comprising a substrate layer and an aluminum blasting porous roughening coating. The aluminum blasting porous roughening coating is disposed on the upper surface of the substrate layer, the thickness of the aluminum blasting porous roughening coating is 150μm-250μm, the porosity of the aluminum blasting porous roughening coating is 8%-12%, and the surface roughness of the aluminum blasting porous roughening coating is 100μm-150μm.

[0006] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, the material of the substrate layer is low-carbon steel plate.

[0007] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, the thickness of the substrate layer is 2mm-3mm.

[0008] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, the thickness of the substrate layer is 2 mm.

[0009] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, the substrate layer is a rectangular plate.

[0010] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, each apex edge of the substrate layer is provided with a positioning hole.

[0011] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, the positioning accuracy of the positioning hole is ≤ ±0.1mm.

[0012] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, a roughening treatment layer is provided on the upper surface of the substrate layer.

[0013] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, the roughening treatment layer is a frosted layer or a brushed layer.

[0014] In a preferred embodiment of the aluminum spray-strengthened baffle plate for filter sandblasting pretreatment provided by the present invention, there are four substrate layers, which are connected end to end in a square shape.

[0015] The present invention has the following beneficial effects: The core reason for the low yield of optical filters is that the surface of the dedicated baffle is relatively smooth, making it easy for dust and film layers to fall off and contaminate the optical filters. Therefore, it is necessary to optimize the surface structure of the dedicated baffle.

[0016] Because the upper surface of the substrate layer is provided with an aluminum spray porous rough coating, the aluminum spray porous rough coating is formed on the surface of the substrate layer by the aluminum spray process. It is a porous rough structure formed by high-speed atomization deposition of molten aluminum. It can be tightly attached to the working surface of the substrate layer and mechanically interlocked with the substrate layer. It is used to grab sandblasting dust to prevent sandblasting dust from falling off and to anchor excess coating layer.

[0017] The porous rough coating of aluminum is formed by heating and melting high-purity aluminum wire, atomizing it into micron-sized droplets through high-pressure airflow, and then spraying it at high speed onto the substrate surface to cool, resulting in a porous rough coating with high powder-grabbing power and high adhesion.

[0018] Aluminum spraying technology can form a porous, rough coating on the surface of the substrate layer, which not only meets the requirements for powder capture and film anchoring, but also firmly bonds with the substrate layer, solving the problem of weak adhesion of traditional dedicated baffles. The porous coating can improve powder capture power, thereby reducing dust pollution, and the enhanced film adhesion can effectively reduce film peeling, ultimately improving the yield of optical filters.

[0019] It can effectively solve the problem of dust falling off easily, thereby making the sandblasting uniform, improving the adhesion of the film layer and reducing the defect rate. Attached Figure Description

[0020] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This invention provides a structural schematic diagram of an aluminum spray-strengthened baffle plate for filter sandblasting pretreatment.

[0022] Figure 2 This is a schematic diagram of the structure of Example 2.

[0023] Explanation of icon numbers: 1. Substrate layer; 2. Aluminum sprayed porous rough coating. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 invention and simplifying the description, and are not intended to 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 invention.

[0026] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] This invention provides an aluminum spray-strengthened baffle plate for pre-treatment of optical filters, comprising a substrate layer and an aluminum spray-porous roughening coating. The aluminum spray-porous roughening coating is disposed on the upper surface of the substrate layer, the thickness of the aluminum spray-porous roughening coating is 150μm-250μm, the porosity of the aluminum spray-porous roughening coating is 8%-12%, and the surface roughness of the aluminum spray-porous roughening coating is 100μm-150μm.

[0028] The core reason for the low yield of optical filters is that the surface of the dedicated baffle is relatively smooth, making it easy for dust and film layers to fall off and contaminate the optical filters. Therefore, it is necessary to optimize the surface structure of the dedicated baffle.

[0029] Because the upper surface of the substrate layer is provided with an aluminum spray porous rough coating, the aluminum spray porous rough coating is formed on the surface of the substrate layer by the aluminum spray process. It is a porous rough structure formed by high-speed atomization deposition of molten aluminum. It can be tightly attached to the working surface of the substrate layer and mechanically interlocked with the substrate layer. It is used to grab sandblasting dust to prevent sandblasting dust from falling off and to anchor excess coating layer.

[0030] The porous rough coating of aluminum is formed by heating and melting high-purity aluminum wire, atomizing it into micron-sized droplets through high-pressure airflow, and then spraying it at high speed onto the substrate surface to cool, resulting in a porous rough coating with high powder-grabbing power and high adhesion.

[0031] Aluminum spraying technology can form a porous, rough coating on the surface of the substrate layer, which not only meets the requirements for powder capture and film anchoring, but also firmly bonds with the substrate layer, solving the problem of weak adhesion of traditional dedicated baffles. The porous coating can improve powder capture power, thereby reducing dust pollution, and the enhanced film adhesion can effectively reduce film peeling, ultimately improving the yield of optical filters.

[0032] It can effectively solve the problem of dust falling off easily, thereby making the sandblasting uniform, improving the adhesion of the film layer and reducing the defect rate.

[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] Example 1, please refer to Figure 1This invention provides an aluminum spray-strengthened baffle plate for pre-treatment of optical filters using sandblasting. It comprises a substrate layer 1 and an aluminum spray-formed porous rough coating 2. The aluminum spray-formed porous rough coating 2 is disposed on the upper surface of the substrate layer 1. The thickness of the aluminum spray-formed porous rough coating 2 is 150μm-250μm, the porosity is 8%-12%, and the surface roughness is 100μm-150μm. Because the aluminum spray-formed porous rough coating 2 is disposed on the upper surface of the substrate layer 1, the aluminum spray-formed porous rough coating 2 forms a porous rough coating on the surface of the substrate layer 1 through an aluminum spraying process. It is a porous rough structure formed by high-speed atomization deposition of molten aluminum. It can tightly adhere to the working surface of the substrate layer 1, mechanically interlocking with the substrate layer 1 to capture sandblasting dust, preventing sandblasting dust from falling off and anchoring excess coating layer. It can effectively solve the problem of dust falling off easily, thereby making the sandblasting uniform, improving the adhesion of the film layer and reducing the defect rate.

[0035] Furthermore, the substrate layer 1 is a rectangular plate, and each of the top corners of the substrate layer 1 is provided with positioning holes, which can be adapted to the installation station of filter sandblasting and coating equipment to ensure the strength of the basic structure.

[0036] Furthermore, the material of the substrate layer 1 is low-carbon steel plate, and the thickness of the substrate layer 1 is 2mm-3mm. In this embodiment, the thickness of the substrate layer 1 is 2mm. The 2mm thick substrate layer 1 combines thinness and rigidity, is suitable for equipment installation, and the positioning hole design avoids displacement during use, further improving processing accuracy.

[0037] Furthermore, the positioning accuracy of the positioning hole is ≤ ±0.1mm.

[0038] Furthermore, a roughening layer is provided on the upper surface of the substrate layer 1, which is a frosted layer or a brushed layer. This improves the adhesion of the aluminum spray-painted porous roughened coating 2.

[0039] Example 2, please refer to Figure 2 As a further optimization of Example 1, in this example, there are four substrate layers 1, which are connected end to end in a square shape to prevent sandblasting from overflowing.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. An aluminum spray-strengthened baffle plate for pre-treatment of optical filters, characterized in that, It includes: Matrix layer; A porous roughened aluminum coating is disposed on the upper surface of the substrate layer. The thickness of the porous roughened aluminum coating is 150μm-250μm, the porosity of the porous roughened aluminum coating is 8%-12%, and the surface roughness of the porous roughened aluminum coating is 100μm-150μm.

2. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 1, characterized in that, The substrate layer is made of low-carbon steel plate.

3. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 2, characterized in that, The thickness of the substrate layer is 2mm-3mm.

4. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 1, characterized in that, The thickness of the substrate layer is 2 mm.

5. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 1, characterized in that, The substrate layer is a rectangular plate.

6. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 5, characterized in that, Each apex edge of the substrate layer is provided with a positioning hole.

7. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 6, characterized in that, The positioning accuracy of the positioning hole is ≤ ±0.1mm.

8. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 1, characterized in that, A roughening layer is provided on the upper surface of the substrate layer.

9. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 8, characterized in that, The roughening layer is a frosted layer or a brushed layer.

10. The aluminum spray-strengthened baffle plate for filter sandblasting pretreatment according to claim 1, characterized in that, There are four substrate layers, which are connected end to end in a square shape.

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