Aluminum alloy valve shell adopting anodic oxidation treatment die-casting process

Abstract

The utility model discloses an anodic oxidation treatment die-casting process aluminum alloy valve shell, which relates to the technical field of automobile parts, and is characterized by comprising a cylindrical shell body with an opening at one end, a matched connecting part positioned at the opening end of the shell body, and a connecting reinforcing part integrally formed with the matched connecting part, anodic oxidation passivation films are arranged on the inner sides and the outer sides of the shell body, the matched connecting part and the connecting reinforcing part. According to the utility model, the overall structural strength and toughness are improved through the combination of the shell body, the matching connection part and the connection reinforcing part, and the thickness of the passivation film is obviously increased through the anodic oxidation passivation film, so that the compactness and the protection capability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and more specifically to an aluminum alloy valve housing subjected to anodizing and die-casting process. Background Art

[0002] As a tool for controlling fluid, a valve includes a valve housing, which is usually obtained by aluminum alloy die-casting in current production technology.

[0003] However, the existing die-casting aluminum alloy valve housing has the problem of low strength, especially compared with steel materials, it is difficult to have friendly toughness. At the same time, since aluminum, as an important lightweight metal material, reacts with oxygen in the air and generates a 0.1-0.02um aluminum oxide passivation layer, although the aluminum oxide passivation layer can improve the strength to a certain extent to enhance the protection effect, it is still difficult to achieve the purpose of effectively protecting the valve housing through the naturally formed oxide film. And due to the small thickness of the oxide film, the protection ability is limited under complex environmental conditions, which needs to be improved. Summary of the invention

[0004] In view of this, the purpose of this application is to provide an anodized die-cast aluminum alloy valve housing to effectively improve the surface density and structural strength. The specific solution is as follows:

[0005] An anodized die-cast aluminum alloy valve housing comprises a cylindrical housing body with a hole at one end, a mating connection portion located at the open end of the housing body, and a connection reinforcement portion integrally formed with the mating connection portion; an anodized passivation film is provided on both inner and outer sides of the housing body, the mating connection portion and the connection reinforcement portion.

[0006] Preferably: the width of the mating connection portion matches the diameter of the shell body, and extends radially outward from one end of the shell body to form a mating cover cavity in the same direction as the opening; the connection reinforcement portion is located on the side of the mating connection portion away from the shell body and extends outward along the extension direction of the mating connection portion.

[0007] Preferably, a matching external reinforcement rib connected to the shell body is arranged on the outer side of the matching connection portion.

[0008] Preferably: a connection outer reinforcement rib connected to the matching connection portion is provided on the outer side of the connection reinforcement portion.

[0009] Preferably, the outer side of the shell body is provided with shell reinforcement ribs which are distributed along the axial direction and match the positions of the corresponding matching external reinforcement ribs or the connecting external reinforcement ribs.

[0010] Preferably: the opening of the shell body is provided with two left-right symmetrical connecting holes located on one side of the mating connection part; the mating connection part is provided with a mating plug-in column located in the mating cover cavity; the inner side of the connection reinforcement part is provided with a limiting plug-in column, a connecting groove and a connecting plug-in groove.

[0011] It can be seen from the above scheme that the present application provides an anodized die-casting aluminum alloy valve housing, which has the following beneficial effects:

[0012] 1. The overall structural strength and toughness are improved through the combination of the shell body, the matching connection part and the connection reinforcement part, and the thickness of the passivation film is significantly increased through the anodized passivation film to improve the density and protection ability;

[0013] 2. The structural strength and toughness of the anodized die-cast aluminum alloy valve housing are further improved by matching the external reinforcement ribs and connecting the external reinforcement ribs with the housing reinforcement ribs;

[0014] 3. The tightness and stability of the anodized die-cast aluminum alloy valve housing are improved by connecting the socket, matching the plug-in column, limiting the plug-in column, connecting the groove and connecting the plug-in groove, thereby achieving the purpose of improving the stability of use and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of this embodiment;

[0016] Figure 2 It is a schematic structural diagram of this embodiment from another angle.

[0017] Explanation of the accompanying drawings: 1. Shell body; 11. Shell reinforcement rib; 12. Connecting socket; 2. Matching connecting part; 21. Matching external reinforcement rib; 22. Matching cover cavity; 23. Matching plug-in column; 3. Connecting reinforcement part; 31. Connecting external reinforcement rib; 32. Limiting plug-in column; 33. Connecting slot; 34. Connecting plug-in slot. DETAILED DESCRIPTION

[0018] In order to make the technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] like Figure 1As shown, an anodized die-casting aluminum alloy valve housing includes a cylindrical housing body 1 with an opening at one end, a matching connection portion 2 located at the open end of the housing body 1, and a connection reinforcement portion 3 integrally formed with the matching connection portion 2. Anodized passivation films are provided on both the inner and outer sides of the housing body 1, the matching connection portion 2, and the connection reinforcement portion 3. The anodized passivation film is operated by an anodizing process, and the voltage is controlled to be 50V and organic matter is added to the oxidation tank.

[0020] In order to effectively improve the compactness of the anodic oxidation passivation film, the organic matter includes 5-10g / L of boric acid, 10-20g / L of oxalic acid and 20-30g / L of glycerol, thereby effectively improving the surface silicon reaction of the anodic oxidation passivation film and reducing the accumulation of silicon elements on the surface.

[0021] like Figure 1 , Figure 2 As shown, the width of the mating connection portion 2 matches the diameter of the shell body 1, and extends radially outward from one end of the shell body 1 to form a mating cover cavity 22 in the same direction as the opening. The width of the connection reinforcement portion 3 is greater than the width of the mating connection portion 2, and is located on the side of the mating connection portion 2 away from the shell body 1 and extends outward along the extension direction of the mating connection portion 2, so that the shell body 1, the mating connection portion 2 and the connection reinforcement portion 3 are synergistically combined and effectively improve the structural strength and toughness of the anodized die-casting aluminum alloy valve shell.

[0022] It should be noted that a matching external reinforcement rib 21 connected to the shell body 1 is provided on the outer side of the matching connection portion 2. A connecting external reinforcement rib 31 connected to the matching connection portion 2 is provided on the outer side of the connecting reinforcement portion 3. The outer side of the shell body 1 is provided with shell reinforcement ribs 11 distributed along the axial direction and matching the positions of the corresponding matching external reinforcement ribs 21 or connecting external reinforcement ribs 31, so as to further improve the structural strength and toughness of the anodized die-casting aluminum alloy valve shell through the matching of the matching external reinforcement ribs 21, the connecting external reinforcement ribs 31 and the shell reinforcement ribs 11.

[0023] At the same time, two left-right symmetrical connection sockets 12 are provided at the opening of the shell body 1 on one side of the matching connection part 2. The matching connection part 2 is provided with a matching plug-in column 23 located in the matching cover cavity 22. And the inner side of the connection reinforcement part 3 is provided with a limited plug-in column 32, a connection groove 33 and a connection plug-in groove 34. Therefore, the matching tightness and stability of the anodized die-casting aluminum alloy valve shell are improved through the connection socket 12, the matching plug-in column 23, the limited plug-in column 32, the connection groove 33 and the connection plug-in groove 34, so as to achieve the purpose of improving the use stability and extending the service life.

[0024] In summary, the present application provides an anodized die-cast aluminum alloy valve housing, which improves the overall structural strength and toughness through the combination of the housing body 1, the mating connection part 2 and the connection reinforcement part 3, and significantly increases the thickness of the passivation film through the anodized passivation film to improve the density and protection capability.

[0025] The "first", "second", "third", "fourth", etc. (if any) referred to in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods or devices.

[0026] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An anodized die-cast aluminum alloy valve housing, characterized in that: The invention comprises a cylindrical shell body (1) with an opening at one end, a matching connection portion (2) located at the open end of the shell body (1), and a connection reinforcement portion (3) integrally formed with the matching connection portion (2); an anodic oxidation passivation film is provided on both the inner and outer sides of the shell body (1), the matching connection portion (2) and the connection reinforcement portion (3).

2. The anodized die-cast aluminum alloy valve housing according to claim 1, characterized in that: The width of the mating connection portion (2) matches the diameter of the shell body (1), and extends radially outward from one end of the shell body (1) to form a mating cover cavity (22) in the same direction as the opening; the connection reinforcement portion (3) is located on a side of the mating connection portion (2) away from the shell body (1) and extends outward along the extension direction of the mating connection portion (2).

3. The anodized die-cast aluminum alloy valve housing according to claim 2, characterized in that: The outer side of the matching connection portion (2) is provided with a matching external reinforcement rib (21) connected to the shell body (1).

4. The anodized die-cast aluminum alloy valve housing according to claim 3, characterized in that: The outer side of the connection reinforcement portion (3) is provided with a connection outer reinforcement rib (31) connected to the matching connection portion (2).

5. The anodized die-cast aluminum alloy valve housing according to claim 4, characterized in that: The outer side of the shell body (1) is provided with shell reinforcement ribs (11) distributed along the axial direction and matching the positions of the corresponding matching external reinforcement ribs (21) or the connecting external reinforcement ribs (31).

6. The anodized die-cast aluminum alloy valve housing according to claim 2, characterized in that: The opening of the shell body (1) is provided with two left-right symmetrical connection holes (12) located on one side of the matching connection part (2); the matching connection part (2) is provided with a matching plug-in column (23) located in the matching cover cavity (22); and the inner side of the connection reinforcement part (3) is provided with a limiting plug-in column (32), a connection groove (33) and a connection plug-in groove (34).

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