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Side mold and hub low-temperature casting mold

A side mold and cooling circuit technology, applied in the field of casting molds, can solve problems such as long solidification time, low casting efficiency, and temperature gradients that cannot meet production conditions

Pending Publication Date: 2020-10-30
CITIC DICASTAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the traditional hub metal mold, the temperature gradient of the side mold is mainly controlled by the thickness of the mold material. When the mold design is completed, it means that the temperature gradient range is basically determined and difficult to change. Under the condition of low casting efficiency, relying on the mold The solidification order of the rim can be adjusted by adjusting the thickness of the material, which can still meet the production requirements, but requires a long solidification time, resulting in low casting efficiency
However, due to the huge demand in the wheel hub market and the increasingly tight production capacity, the improvement of the casting efficiency of the wheel hub is an irreversible trend in the industry. The traditional temperature gradient formed by the thickness of the mold material is far from meeting the production conditions. Therefore, the rim area needs more effective. The cooling method forms a larger temperature gradient to meet the urgent needs of mass and stable production

Method used

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  • Side mold and hub low-temperature casting mold
  • Side mold and hub low-temperature casting mold
  • Side mold and hub low-temperature casting mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Combined with the manual Figure 1-5 , a side mold is provided in Embodiment 1, such as figure 1 As shown in the middle sectional view, it includes a side formwork frame 1, a cooling cover plate 2, an inlet pipe 3, an outlet pipe 6, a thermal insulation gasket 4, a channel 5, and a cooling insert 8. The side form frame 1 is made of cast mold steel, and a cooling circuit is processed in the back cavity of the side form frame 1, and the cooling circuit includes a plurality of parallel passages 5, and the adjacent passages along the solidification direction of the casting The spacing between 5 gradually increases. The channels 5 are arc-shaped grooves along the circumference of the side mold, and the distance between adjacent arc-shaped grooves increases gradually along the solidification direction of the casting (for example, the solidification direction of the rim, from top to bottom).

[0028] Such as image 3 As shown in , sealing grooves are arranged around the coo...

Embodiment 2

[0039] Embodiment 2 of the present application provides a wheel hub low-pressure casting mold, including a top mold, a bottom mold and four side molds 15 described in any of the above-mentioned embodiments, and the top mold, bottom mold and four Described side mold 15 encloses the mold cavity that forms low-pressure casting. The combined structure of described side mold 15 is as Figure 6 shown in . In other embodiments, according to the requirements of the cast product, the sideform structure can be integrated or a combination of more than one piece.

[0040] In this embodiment 2, the side mold in the above-mentioned embodiment is adopted, and cooling is performed on the original temperature gradient formed due to the thickness of the side mold, and the distance between the arc-shaped groove passages in the cooling circuit is gradually increased along the solidification direction. The ability to take away heat changes from strong to weak, and can be superimposed with the te...

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Abstract

The invention belongs to the technical field of casting mold, and provides a side mold and a hub low-temperature casting mold. Channels of a circulation loop are processed in a rear cavity of a side mold framework; the gap between adjacent channels is gradually increased along the solidification direction of a casting; cooling medium flows along the circulation loop, the ability of taking away heat changes from strong to weak, and the cooling medium can overlap a temperature gradient formed by thickness of the side mold to form a larger temperature gradient; a thermal insulation gasket realizes the effect of thermal insulation, the impact from adjacent channels is reduced, and the temperature ingredient is more obvious, so a good feeding range is formed, the compactness of the casting is improved, and excellent mechanical performance of a rim part is obtained; and at the same time, partial cooling is accelerated, so the production rhythm is accelerated and the production efficiency ofa casting process is improved.

Description

technical field [0001] The application relates to the technical field of casting molds, in particular to a low-pressure casting mold for side molds and hubs. Background technique [0002] When designing metal hub molds, it is necessary for the entire hub casting to solidify in a reasonable order in the solidification direction to ensure the feeding of the casting, so that the mechanical properties of the casting can meet the requirements, and there will be no casting defects such as shrinkage porosity and shrinkage cavity. For the traditional hub metal mold, the temperature gradient of the side mold is mainly controlled by the thickness of the mold material. When the mold design is completed, it means that the temperature gradient range is basically determined and difficult to change. Under the condition of low casting efficiency, relying on the mold The solidification sequence of the rim can be adjusted by adjusting the thickness of the material, which can still meet the pr...

Claims

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Application Information

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IPC IPC(8): B22D18/04B22D27/04
CPCB22D18/04B22D27/04B22C9/065B22D27/045B22D15/005B22D15/02B22D17/2218
Inventor 李振熊国源杨小禹檀宝绳松裴贵蒋岩朱文涛田烨玲
Owner CITIC DICASTAL
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