Low-pressure casting male die for motor casing
A technology of low-pressure casting and motor casing, applied in the field of low-pressure casting, can solve the problems of difficulty in ensuring the elimination of defects, difficulty in improving the qualification rate of castings, etc., and achieves the effect of good cooling effect and improved production efficiency.
Inactive Publication Date: 2021-04-13
东风汽车零部件集团有限公司通用铸锻分公司
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Problems solved by technology
If there is no control means, it is difficult to ensure the elimination of defects, and it is difficult to improve the pass rate of castings
Method used
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[0023] pass below Figure 2 to Figure 4 As well as listing some optional embodiments of the present invention, the technical solutions (including preferred technical solutions) of the present invention are further described in detail. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] Such as Figure 2 to Figure 4 As shown, the motor housing low-pressure casting punch designed by the present invention includes a body, which is characterized in that: the body is provided with a mold core 1, and the end of the mold core 1 is sealed and connected to the upper mold insert 2, and the upper mold insert 2 is sealed. The middle part of the mold insert 2 is sealed and fixedly connected to the central insert 3; ...
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Abstract
The invention discloses a low-pressure casting male die for a motor casing. The low-pressure casting male die for the motor casing comprises a body; a die core is arranged on the body; the end of the die core is connected with an upper die insert in a sealed mode; the middle of the upper die insert is fixedly connected with a center insert in a sealed mode; the die core comprises an inner die core and an outer die core which are coaxially arranged; the inner die core is located in the outer die core; a plurality of annular water coolers are arranged on the inner wall of the outer die core in the axial direction of the outer die core; the central insert is provided with a central water cooler; and each of the plurality of annular water coolers and the central water cooler are respectively independent and respectively connected with a point cooling pipe. According to the low-pressure casting male die for the motor casing, the casting cooling process can be effectively controlled, not only is the cooling effect good, but also the defects of shrinkage porosity, shrinkage cavities and the like are avoided, and meanwhile, the production efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of low-pressure casting, in particular to a low-pressure casting punch for a motor casing. Background technique [0002] The motor casing produced by low-pressure casting process generally has problems such as long process cycle, shrinkage and looseness in the thick and large internal position, and poor exhaust. This is especially true for the motor casing with a spiral water channel described in this patent, because the middle annular water channel is formed by a sand core, and the sand core is completely wrapped by aluminum liquid, so it is more difficult to exhaust, and the difference in wall thickness between the upper and lower walls is large and thick. The position is prone to shrinkage porosity and shrinkage cavity and is difficult to eliminate. [0003] The industry has used molds to add water-cooled pipes to reduce the tempo, negative pressure pumping to increase exhaust and other measures, but the...
Claims
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IPC IPC(8): B22D18/04B22D27/04
CPCB22D18/04B22D27/04
Inventor 强根金魏啟金吴云波李静洋徐畅程亮
Owner 东风汽车零部件集团有限公司通用铸锻分公司