Casting mold applied to long-neck products
By setting up a heating device at the long neck structure of the casting mold, the problem of early solidification of aluminum liquid in the long neck is solved, the mold temperature is significantly improved, the casting quality is improved, and large-scale transformation or cumbersome process adjustment is not required.
Patent Information
- Application Number
- CN202422082136.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-27
AI Technical Summary
When casting long-neck aluminum alloy automotive parts, the aluminum liquid cools faster in the long-neck area, resulting in early solidification of the aluminum liquid, resulting in casting defects such as cold partitions, pores, and shrinkage. The existing improvement measures are not effective or the process adjustment is cumbersome.
A casting mold is designed, including a heating device on the mold body, especially a heating device at the long neck structure to increase the area temperature and prevent the aluminum liquid from solidifying ahead of time. The heating device may be a tubular heater, and efficient heating and temperature monitoring are achieved by providing heating holes and temperature measurement holes in the back cavity of the mold.
Through active heating and heating, the temperature at the long neck structure of the mold is significantly improved, the liquid aluminum solidification is avoided, the quality of castings is improved, and there is no need for large-scale mold modification or cumbersome process adjustments, which is easy to implement and obvious results.
Smart Images
Figure CN222957488U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to a casting mold applied to long-neck products. Background Art
[0002] Aluminum alloy automobile parts have been widely recognized in the passenger car market due to their excellent characteristics such as light weight, high strength and corrosion resistance. Aluminum alloy automobile parts have various shapes, which puts forward higher requirements for the production process of parts. In the differential pressure casting process of parts, for long-neck products with too long castings or too wide casting surfaces, due to the relatively fast cooling of the aluminum liquid in the long-neck part, the aluminum liquid often solidifies in advance in the long-neck part during the filling process, resulting in the aluminum liquid not being able to smoothly fill the mold cavity, and casting defects such as cold shuts, pores and shrinkage porosity are generated. To improve such problems, the traditional improvement measures are to add heat preservation measures on the casting mold corresponding to the too long part of the casting or the too wide part of the casting surface to increase the regional temperature of the long-neck part of the casting and avoid the premature solidification of the aluminum liquid at this place. However, in production practice, the above methods have not achieved obvious improvement effects; another improvement measure is to add gate openings on the mold so that the aluminum liquid enters the cavity through different gate openings to complete the filling. However, this method requires a large degree of modification of the mold, has a great impact on the production process, and the process adjustment is cumbersome.
[0003] Based on this, developing a new casting mold applied to long-neck products for actual production is an urgent problem to be solved at present. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a casting mold applied to long-neck products for the above problems, so as to solve the problem that existing molds are prone to casting defects such as cold shuts, pores and shrinkage porosity when casting long-neck products with too long castings or too wide casting surfaces.
[0005] To solve the above technical problems, the technical solution adopted by the utility model is as follows:
[0006] A casting mold applied to long-neck products includes a mold body, and a heating device is arranged on the mold body. The heating device is arranged corresponding to the long-neck structure of the mold body to increase the regional temperature of the long-neck part of the casting corresponding to the mold body.
[0007] Preferably, the heating device is a tubular heater. A heating hole is opened on the mold body corresponding to the long-neck part of the casting. The heating hole penetrates into the mold body from the back cavity and is opened corresponding to the cavity of the long-neck part of the casting. The tubular heater is inserted into the heating hole.
[0008] Preferably, a thermocouple is arranged on the mold body corresponding to the long-neck part of the casting for monitoring the real-time temperature of the long-neck part.
[0009] Preferably, a temperature measuring hole is provided in the back cavity of the mold body corresponding to the long-neck structure, and the thermocouple is inserted into the temperature measuring hole.
[0010] Preferably, the heating device and the thermocouple are integrally designed, and the tubular heater and the thermocouple are connected into an integral structure through a connecting rod.
[0011] Preferably, a heat preservation structure is provided in the back cavity of the mold body corresponding to the long-neck structure, and the heat preservation structure is heat preservation cotton filled in the back cavity, and the heat preservation cotton covers the tubular heater and the thermocouple.
[0012] The beneficial effects of the present utility model are as follows:
[0013] The present utility model actively heats and compensates the temperature at the long-neck structure of the mold body through the heating device, replacing the traditional passive heat preservation operation mode, and significantly improving the temperature at the long-neck structure of the mold; at the same time, this embodiment does not require large-scale transformation of the original mold, does not require cumbersome process adjustment, is convenient to implement, and has obvious application effects; the tubular heater can extend into the mold body to efficiently heat the long-neck structure, improving the heating efficiency and ensuring the accuracy of the heating range; the setting of the heat preservation structure reduces the heat loss at the long-neck structure, improves the heating efficiency, and achieves the application purpose of energy conservation and consumption reduction. Description of the Drawings
[0014] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.
[0015] Figure 1 is a three-dimensional structure schematic diagram of the present utility model.
[0016] Figure 2 is Figure 1 a three-dimensional view of the upward-looking structure.
[0017] Figure 3 is Figure 1 a schematic diagram of the top view plane structure of
[0018] Figure 4 is Figure 3 a sectional view taken along the line A-A in
[0019] Figure 5 is a connection schematic diagram of the tubular heater and the thermocouple.
[0020] In the figure: 1 - mold body; 11 - long-neck structure; 12 - heating hole; 13 - back cavity; 14 - temperature measuring hole; 2 - heating device; 21 - tubular heater; 3 - thermocouple; 31 - connecting rod; 4 - heat preservation structure. Specific Embodiments
[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0022] As Figures 1-5 shown, a casting mold applied to long-neck products includes a mold body 1, and a heating device 2 is arranged on the mold body 1. The heating device 2 is arranged corresponding to the long-neck structure 11 of the mold body 1 to increase the temperature of the area of the mold body 1 corresponding to the long-neck part of the casting, so as to avoid premature solidification of the molten aluminum in the too-long part of the casting or the part with a wider casting surface, which affects the quality of the casting. During casting, the molten aluminum enters the mold cavity through the gate for filling. When flowing through the long-neck structure 11 of the mold, the cooling rate increases, and the molten aluminum shows a tendency of premature solidification. At this time, the heating device 2 timely heats and replenishes the temperature of the long-neck structure 11 of the mold body 1 to maintain the temperature at this place and ensure the smooth filling of the molten aluminum. In this embodiment, the heating device 2 actively heats and replenishes the temperature of the long-neck structure 11 of the mold body 1, replacing the traditional passive heat preservation operation method, significantly improving the temperature of the long-neck structure 11 of the mold; at the same time, this embodiment does not require large-scale transformation of the original mold and does not require cumbersome process adjustment, is easy to implement, and has obvious application effects.
[0023] As a preferred embodiment, the heating device 2 is preferably a tubular heater 21. A heating hole 12 is opened on the mold body 1 corresponding to the long-neck part of the casting. The heating hole 12 penetrates into the mold body 1 from the back cavity 13 of the mold body 1 and is opened corresponding to the cavity of the long-neck part of the casting. The tubular heater 21 is inserted into the heating hole 12. In this embodiment, the setting of the heating hole 12 can enable the tubular heater 21 to extend into the mold body 1 to efficiently heat the long-neck structure 11, improving the heating efficiency and ensuring the accuracy of the heating range.
[0024] Preferably, a thermocouple 3 is arranged on the mold body 1 corresponding to the long-neck part of the casting to monitor the real-time temperature of the long-neck part, facilitating the operator to confirm and adjust the temperature of the long-neck structure 11 of the mold. Preferably, a temperature measuring hole 14 is opened in the back cavity 13 of the mold body 1 corresponding to the long-neck structure 11, and the thermocouple 3 is inserted into the temperature measuring hole 14.
[0025] Preferably, as Figures 3-5 shown, the heating device 2 and the thermocouple 3 are integrally designed, which is convenient for the disassembly and assembly of the heating device 2 and the thermocouple 3, and facilitates the equipment inspection, repair and maintenance operations. Specifically, the tubular heater 21 and the thermocouple 3 are connected into an integral structure through a connecting rod 31, which is convenient for the management and use of components. At the same time, the integral structure of the tubular heater 21 and the thermocouple 3 regularizes the layout of the back cavity 13 of the mold body 1 and facilitates the inspection, repair and maintenance operations of the mold body 1.
[0026] In a further embodiment, as Figure 4 shown, a heat insulation structure 4 is provided in the back cavity 13 of the mold body 1 corresponding to the long-neck structure 11 to reduce heat dissipation at the long-neck structure 11, improve heating efficiency, and achieve the purpose of energy conservation and consumption reduction. The heat insulation structure 4 may be heat insulation cotton filled in the back cavity 13, and the heat insulation cotton covers the tubular heater 21 and the thermocouple 3.
[0027] The specific embodiments of the present invention disclosed above are only for illustration, but the present invention is not limited thereto. For those of ordinary skill in the art, any modifications made without departing from the principle of the present invention shall be regarded as falling within the protection scope of the present invention.
Claims
1. A casting mold for long-necked products, characterized in that: The mold body (1) comprises a mold body (1), on which a heating device (2) is arranged. The heating device (2) is arranged corresponding to a long neck structure (11) of the mold body (1) so as to increase the temperature of a region of the mold body (1) corresponding to the long neck portion of the casting.
2. The casting mold for long-necked products according to claim 1, characterized in that: The heating device (2) is a tubular heater (21), and a heating hole (12) is provided on the mold body (1) corresponding to the long neck portion of the casting. The heating hole (12) penetrates from the back cavity (13) of the mold body (1) and is provided in the mold cavity corresponding to the long neck portion of the casting, and the tubular heater (21) is inserted into the heating hole (12).
3. The casting mold for long-necked products according to claim 1, characterized in that: A thermocouple (3) is provided on the mold body (1) at the long neck portion corresponding to the casting, and is used to monitor the real-time temperature of the long neck portion.
4. The casting mold for long-necked products according to claim 3, characterized in that: A temperature measuring hole (14) is provided in the back cavity (13) of the mold body (1) corresponding to the long neck structure (11), and the thermocouple (3) is inserted into the temperature measuring hole (14).
5. The casting mold for long-necked products according to claim 3, characterized in that: The heating device (2) and the thermocouple (3) are designed to be integrated, and the tubular heater (21) and the thermocouple (3) are connected to form an integrated structure via a connecting rod (31).
6. The casting mold for long-necked products according to claim 3, characterized in that: A heat-insulating structure (4) is provided in the back cavity (13) of the mold body (1) at a location corresponding to the long neck structure (11); the heat-insulating structure (4) is heat-insulating cotton filled in the back cavity (13); the heat-insulating cotton covers the tubular heater (21) and the thermocouple (3).