Low-pressure casting mold for split type aluminum alloy spoke
A low-pressure casting and split-type technology, which is applied in the field of low-pressure casting molds, can solve the problems of shrinkage and porosity, not split-type, etc., and achieve the effects of fast cooling speed, improved material properties, and mechanical properties/equilibrium
Active Publication Date: 2020-01-24
台山市长富铝业有限公司
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Problems solved by technology
[0005] Although the above-mentioned two patents all disclose the spoke casting mold, and can reduce the development cost of the spoke to a certain extent, the above-mentioned spoke casting mold is a two-piece type, not a split type, especially the lower mold is not a split type, and at the same time The spoke forming part is also not used as an upper mold; thus causing shrinkage
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Embodiment 1
[0078] The low-pressure casting mold of the split aluminum alloy wheel spoke provided by the present invention carries out the method for spoke casting, comprising the following steps;
[0079] S1: Clamp the lower mold and the upper mold; then install the mold 20 after clamping on the low-pressure casting frame 15;
[0080] S2: Using the traditional low-pressure casting method, inject molten aluminum from the casting port into the cavity of the mold after the mold is closed to form the product;
[0081] S3: cooling the mold until the molten aluminum solidifies;
[0082] S4: natural cooling of castings;
[0083] S5: Open the mold and take out the casting
[0084] Wherein, cooling the mold in step S3 in the present embodiment specifically includes the following steps:
[0085] S31: 20s after filling the mold, open the R-angle air duct 11 to cool for 30s; after the cooling is completed, the temperature of the mold position is about 300°C, and the R-angle air duct 11 provided i...
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The invention provides a low-pressure casting mold for a split type aluminum alloy spoke, and belongs to the technical field of casting molds. The low-pressure casting mold comprises an upper mold anda lower mold. The lower mold is of a split design and comprises a spoke window part, a lower mold insert and a mounting plate. The mounting plate is located inside the lower mold insert. A casting opening is formed in the center of the mounting plate. The lower mold insert is located inside the spoke window part. A casting blank is formed after the upper mold and the lower mold are combined. Theupper mold is a spoke forming part. The spoke forming part is of an inverted design. Therefore, the section shape of the spoke forming part is a groove structure with a downward opening. The three parts of the spoke window part, the lower mold insert and the mounting plate are formed after dividing by taking the decorative surface of the spoke forming part as the upper mold and designing the lowermold into a split type, so that the modular standardization and universality of the molds are realized; and only the upper mold needs to be manufactured after the style of spokes with the same specification is changed, the development speed of new products is improved, and the development cost is reduced.
Description
technical field [0001] The invention relates to the technical field of wheel spoke mold casting, in particular to a low-pressure casting mold of split aluminum alloy wheel spokes. Background technique [0002] At present, most of the aluminum alloy wheels are integral, and are formed by gravity casting / low pressure casting / forging. As the market demand for personalized wheels continues to increase, the split two-piece type is gradually increasing, and the two-piece spokes are mostly formed by forging, which is too expensive. Moreover, the molds for casting wheel spokes all use the decorative surface of the wheel as the lower mold. This design is not conducive to the cooling of the mold, and the casting production cycle is also long. During the production of castings, it is particularly easy to produce shrinkage defects at the R corners, resulting in castings (rim / Spokes / mounting discs) have uneven material properties and poor mechanical properties. [0003] CN208895126U d...
Claims
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Login to View More IPC IPC(8): B22D18/04
CPCB22D18/04B22D27/04
Inventor 张细荣甑国生王传斌
Owner 台山市长富铝业有限公司