Tube plate forge piece for surfacing

Abstract

The utility model relates to a tube plate forge piece for surfacing, which comprises a forge piece body, the groove is formed in the surface of the forge piece body, and surfacing is carried out in the groove; the groove bottom face of the groove is of an arch structure with the middle protruding upwards. Surfacing needs to be carried out in the groove of the forge piece body, the groove bottom face of the groove is of the arch-shaped structure with the middle protruding upwards, and the arch-shaped structure is of the anti-deformation structure, so that after surfacing, the arch-shaped structure can be driven by stress of a surfacing layer to form a plane structure, the surfacing layer in the groove can also form a plane structure, and it is guaranteed that after the tube plate forge piece is subjected to surfacing, the deformation of the tube plate forge piece is reduced. And the surface is a plane.

Description

Technical Field

[0001] The utility model relates to the field of processing, in particular to a tube sheet forging for surfacing welding. Background Art

[0002] Stainless steel can be surfaced welded in the groove of the tube sheet forging to form a corrosion-resistant layer, increasing the corrosion resistance of the tube sheet forging; this is particularly important for equipment that needs to be used in a corrosive environment and can extend the service life of the equipment.

[0003] However, in the conventional surfacing welding process, due to the generation of stress inside the surfacing welding layer, deformation and unevenness occur on the surface of the forging body; during the subsequent installation process of the tube sheet forging, the accuracy cannot be guaranteed.

[0004] In summary, how to ensure that the surface of the tube sheet forging is a flat surface after surfacing welding has become an urgent problem for researchers in this field. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: how to ensure that the surface of the tube sheet forging is a flat surface after surfacing welding;

[0006] To solve the above technical problem, the technical solution adopted by the utility model is:

[0007] The utility model is a tube sheet forging for surfacing welding, including: a forging body; a groove, which is opened on the surface of the forging body and surfacing welding is carried out in the groove; wherein, the bottom surface of the groove is an arched structure with a middle part protruding upwards;

[0008] In this solution, surfacing welding needs to be carried out in the groove of the forging body. The bottom surface of the groove is an arched structure with a middle part protruding upwards. The arched structure is an anti-deformation structure. After surfacing welding, the arched structure will form a flat structure under the drive of the stress of the surfacing welding layer. In this way, the surfacing welding layer in the groove will also form a flat structure, ensuring that the surface of the tube sheet forging is a flat surface after surfacing welding.

[0009] To ensure the firm connection between the surfacing welding layer and the groove, the utility model adopts sandblasting treatment on the bottom surface of the groove;

[0010] Through sandblasting treatment, the firm connection between the surfacing welding layer and the groove is ensured.

[0011] To illustrate the design height of the arched structure, the utility model adopts the height of the arched structure as H; the height at the edge of the groove is h; wherein, the range of H / h is 0.4 - 0.5;

[0012] In this solution, the groove depth at the edge of the groove is h, and the groove depth at the center of the groove is h - H. The greater the value of h, the greater the stress generated inside the surfacing layer. Therefore, the greater the value of H, the flatter the surface of the forging body after surfacing.

[0013] Advantages of the present utility model: The present utility model is a surfacing tube sheet forging. Surfacing is required inside the groove of the forging body. The bottom surface of the groove is an arched structure that bulges upward in the middle. The arched structure is an anti-deformation structure. After surfacing, the arched structure will form a flat structure driven by the stress of the surfacing layer, and thus the surfacing layer inside the groove will also form a flat structure, ensuring that the surface of the tube sheet forging is flat after surfacing. Description of the Drawings

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 is a cross-sectional view of the forging body;

[0016] In the figure: 1 - forging body, 2 - groove, 3 - arched structure. Detailed Embodiment

[0017] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0018] As Figure 1 shown, the present utility model is a surfacing tube sheet forging, including: a forging body 1; a groove 2, which is opened on the surface of the forging body 1 and surfacing is carried out inside the groove 2; wherein, the bottom surface of the groove 2 is an arched structure 3 that bulges upward in the middle;

[0019] In this solution, surfacing is required inside the groove of the forging body. The bottom surface of the groove is an arched structure that bulges upward in the middle. The arched structure is an anti-deformation structure. After surfacing, the arched structure will form a flat structure driven by the stress of the surfacing layer, and thus the surfacing layer inside the groove will also form a flat structure, ensuring that the surface of the tube sheet forging is flat after surfacing.

[0020] As Figure 1 shown, in order to ensure the firmness of the connection between the surfacing layer and the groove, the present utility model performs abrasive treatment on the bottom surface of the groove;

[0021] Through abrasive treatment, the firmness of the connection between the surfacing layer and the groove is ensured.

[0022] As Figure 1As shown, to illustrate the design height of the arch structure, the height of the arch structure 3 of the present utility model is H; the height at the edge of the groove 2 is h; wherein, the range of H / h is 0.4 to 0.5;

[0023] In this solution, the groove depth at the edge of the groove is h, and the groove depth at the center of the groove is h - H. When h is larger, the stress generated inside the surfacing layer is also larger. Therefore, only when H is larger can the surface of the forging body be flat after surfacing.

[0024] Enlightened by the ideal embodiments of the present utility model described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A tube sheet forging for surfacing welding, characterized in that, Comprising: The forging body; A groove, which is formed on the surface of the forging body and surfacing is carried out in the groove; Wherein, the bottom surface of the groove is an arched structure with a middle part protruding upward.

2. The tube sheet for surfacing according to claim 1, wherein The bottom surface of the groove is subjected to frosted treatment.

3. A tube sheet forging for surfacing welding according to claim 1, characterized in that, The height of the arched structure is H; The height at the edge of the groove is h; Wherein, the range of H / h is 0.4 to 0.5.

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