Volute runner wall stay riser structure

By setting a heat-applied patch and a riser at the joint of the volute flow channel wall, the shrinkage porosity problem at the joint between the joint and the flow channel wall during the volute casting process was solved, the internal recess requirement of the casting was met, and the quality of the volute casting was improved.

CN224322317UActive Publication Date: 2026-06-05KEHUA HLDG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KEHUA HLDG
Filing Date
2025-06-17
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the existing technology, there is a risk of shrinkage porosity at the junction of the volute and the flow channel wall during the casting process, which affects the requirements for the indentation of the casting.

Method used

A pair of heat applicators are installed at the volute flow channel wall jack. The heat applicators cooperate with the riser to feed the jack and control the distance and end face shape between the heat applicators and the jack and flow channel wall to stabilize the heat supply.

Benefits of technology

This effectively avoids shrinkage at the junction of the jack and the flow channel wall, meets the internal recess requirements of the casting, and improves the quality of the vortex shell casting.

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Abstract

The utility model relates to a vortex shell runner wall tab riser structure, including vortex shell casting, at least one tab is equipped on the vortex shell casting, the riser is connected with the outer end of tab, a pair of hot patch is set up on the riser, and two hot patches are located at tab two sides respectively, and the tab is supplemented by two hot patches and the cooperation of the riser.Increases a pair of hot patch on the riser, and the tab is supplemented by hot patch, and the hot module of tab inside decreases along with the direction of runner wall casting, makes the tab inside, tab and the shrinkage of the junction of runner wall is not loose, satisfies the requirement of the internal atrophy of casting.
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Description

Technical Field

[0001] This utility model relates to the field of casting technology, specifically to a riser structure for a vortex flow channel wall. Background Technology

[0002] In the context of energy conservation and emission reduction, lightweight design in automobiles is in full swing, and the weight requirements for automotive parts are becoming increasingly stringent. The goal is to reduce weight without compromising performance, which necessitates increasingly sophisticated structural designs for these parts. This presents new challenges to traditional parts casting methods. Those that cannot keep pace will be left behind.

[0003] The turbine housing is an important automotive component and therefore must be designed for lightweighting, such as... Figure 1 The vortex casting 1 shown has multiple gussets 11 on the flow channel wall. The thermal modulus results show that the position with the largest modulus inside the gusset 11 is at the junction of the gusset 11 and the flow channel wall, which is not conducive to the feeding of the casting. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a riser structure for the volute flow channel wall to solve the risk of shrinkage at the connection between the riser and the flow channel wall during the casting process of the volute.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A vortex shell flow channel wall riser structure is provided, including a vortex shell casting, the vortex shell casting is provided with at least one riser; the riser is connected to the outer end of the riser, and a pair of heat-applied pads are provided on the riser, the two heat-applied pads are respectively located on both sides of the riser, and the riser is used to compensate for the shrinkage of the riser through the cooperation of the two heat-applied pads and the riser.

[0006] Furthermore, the distance between the heat patch and the gusset is 4-5 mm.

[0007] Furthermore, the distance between the heat-applied material and the outer wall of the flow channel of the vortex casting is 4-5 mm.

[0008] Furthermore, the end face of the heat patch facing the side of the connector is flat, and the end face of the heat patch facing the outer wall of the flow channel is flat.

[0009] The beneficial effects of this utility model are: The riser structure of the vortex flow channel wall of this utility model adds a pair of heat-adjusting pads to the riser. The heat-adjusting pads provide heat to the riser, and the thermal modulus inside the riser gradually decreases from the riser end face toward the flow channel wall, so that there is no shrinkage porosity inside the riser and at the junction of the riser and the flow channel wall, thus meeting the requirements for indentation inside the casting. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings.

[0011] Figure 1 This is a schematic diagram of a vortex shell casting; Figure 2 This is a structural diagram of the vortex shell casting and riser; Figure 3 This is a schematic diagram of a riser; where 1 is the vortex shell casting, 11 is the support, 2 is the riser, and 21 is the heat-applied component. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] This application provides a riser structure for a vortex casing flow channel wall, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0014] To address the technical problem of shrinkage porosity at the junction of the riser and the flow channel wall during the casting process in existing volute casings, one embodiment of this application provides a riser structure for the flow channel wall of a volute casing. This is described in detail below.

[0015] like Figures 1 to 3 As shown, a vortex casing flow channel wall riser structure includes a vortex casing casting 1, on which at least one riser 11 is provided; a riser 2, which is connected to the outer end of the riser 11, and a pair of heat-applied pads 21 are provided on the riser 2, with the two heat-applied pads 21 located on both sides of the riser 11 respectively, so that the riser 11 is fed by the cooperation of the two heat-applied pads 2 and the riser 2.

[0016] The volute casting 1 has multiple gussets 11. In the finished volute, the gussets 11 have openings. In this embodiment, the gusset 11 targeted by the riser 2 is located on the flow channel wall of the volute casting 1.

[0017] Heat subsidy 21 Figure 3 The center consists of raised structures on both sides of the riser.

[0018] like Figure 3 As shown, the riser includes the riser body, which is formed by cooling and fixing molten metal. In this embodiment, the riser has an overall L-shaped structure.

[0019] Specifically, as an optional implementation method in this embodiment, such as Figure 2 and Figure 3As shown, the distance between the heat patch 21 and the pad 11 is 4-5 mm.

[0020] Specifically, as an optional implementation method in this embodiment, such as Figure 2 and Figure 3 As shown, the distance between the heat-applied patch 21 and the outer wall of the flow channel of the vortex casting 1 is 4-5 mm.

[0021] Specifically, as an optional implementation method in this embodiment, such as Figure 3 As shown, the end face of the heat patch 21 facing the side of the cam 11 is a plane, and the end face of the heat patch 21 facing the outer wall of the flow channel is a plane.

[0022] By controlling the distance between the heat applicator 21 and the socket 11 and the flow channel wall, and by controlling the formation of the end face of the heat applicator 21, the heat applicator 21 can stably provide heat to the socket 11, thus preventing the socket 11 casting from sinking and shrinking.

[0023] The riser structure of the vortex shell flow channel wall 11 of this utility model adds a pair of heat-applying pads 21 to the riser 2. The heat-applying pads 21 provide heat to the 11, and the thermal modulus inside the 11 gradually decreases from the end face of the 11 towards the flow channel wall, so that there is no shrinkage porosity inside the 11 and at the junction of the 11 and the flow channel wall, thus meeting the indentation requirements inside the casting.

[0024] During the casting process, the volute casting 1 is equipped with an outer shell core and an inner shell core. The inner shell core is located inside the volute casting 1, and the volute casting 1 is placed in the outer shell core. The riser 2 is located in the outer shell core, and a casting cavity is formed between the outer shell core and the inner shell core. After the molten metal enters the casting cavity, it slowly fills the cavity and the chamber corresponding to the riser 2. The heat applicator 21 also has a corresponding chamber in the outer shell core. After the molten metal fills the volute cavity, the riser cavity, and the heat applicator 21 cavity, it slowly begins to cool and finally solidifies.

[0025] During the curing process, a pair of heat-applied pads 21 on riser 2 provide heat to the pads 11 to prevent shrinkage and loosening at the junction of pads 11 and the flow channel wall of the volute.

[0026] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0027] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A riser structure for a vortex-shell flow channel wall, characterized in that, Includes a vortex shell casting (1), on which at least one jack (11) is provided; a riser (2), which is connected to the outer end of the jack (11), and a pair of heat-applied pads (21) are provided on the riser (2), with the two heat-applied pads (21) located on both sides of the jack (11) respectively, and the jack (11) is fed by the cooperation of the two heat-applied pads (21) and the riser (2).

2. The riser structure for the vortex casing flow channel wall according to claim 1, characterized in that, The distance between the heat patch (21) and the pad (11) is 4-5 mm.

3. The riser structure for the vortex casing flow channel wall according to claim 1, characterized in that, The distance between the heat applicator (21) and the outer wall of the flow channel of the vortex casting (1) is 4-5 mm.

4. The riser structure for the vortex casing flow channel wall according to claim 1, characterized in that, The end face of the heat patch (21) facing the side of the connector (11) is a plane, and the end face of the heat patch (21) facing the outer wall of the flow channel is a plane.