Pouring gate structure used for differential pressure casting and differential pressure casting method for casting by virtue of pouring gate structure
A technology of differential pressure casting and castings, which is applied in the field of runner structure for differential pressure casting, which can solve problems such as coarse grain structure and shrinkage at the flange, and achieve the effects of improving internal structure, performance and feeding capacity
Pending Publication Date: 2018-04-06
洛阳乾中新材料科技有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a runner structure for differential pressure casting, to solve the problems of shrinkage, slag inclusion, pores or coarse grain structure at the flange of the casting when the casting is cast in the prior art; The purpose is also to provide a casting differential pressure casting method using the runner structure
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Embodiment Construction
[0023] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0024] A specific embodiment of the runner structure for differential pressure casting of the present invention, such as Figure 4 As shown, the runner structure for differential pressure casting includes an annular runner 6 and a vertical slot runner 12 communicating with the annular runner 6, and the vertical slot runner 12 is connected with a horizontal level for pouring the flange of the cylindrical casting 1. The slot runner 11, in other embodiments, can also be separately provided with a vertical runner that connects the annular runner 6 and the horizontal slot runner 11, and the vertical runner is not used for pouring castings, but only for feeding the horizontal slot runner. The molten metal is conveyed in 11; the number of vertical slot runners 12 is ten and is evenly distributed in the circumferential direction of the annular runner 6, and the ...
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The invention relates to a pouring gate structure used for differential pressure casting and a differential pressure casting method for a casting by virtue of the pouring gate structure. The pouring gate structure used for the differential pressure casting comprises a sprue and also comprises a horizontal gap pouring gate which is communicated with the sprue and is used for pouring the end face ofthe casting. By arranging the horizontal gap pouring gate communicated with the sprue, the differential pressure casting is applied to the casting provided with the end face, so that feeding on the end face of the casting is carried out under pressure, and feeding capability of an end face part of the casting is improved; and meanwhile, compactness of the end face of the casting is improved, internal quality of the end face of the casting is guaranteed, and interior tissues of the end face of the casting are improved.
Description
technical field [0001] The invention relates to a runner structure for differential pressure casting and a casting differential pressure casting method using the runner structure. Background technique [0002] At present, because of the low density and high specific strength of aluminum alloy castings for large cylinders and boxes, aluminum alloy castings can greatly reduce the weight of aerospace products and save fuel under the same strength conditions. widely used. [0003] Considering the requirements of use, flanges are generally designed at both ends of the casting to facilitate fixed connection. Due to the high internal quality requirements of this type of casting, any defects such as looseness, pinholes, and impurities are not allowed. Currently, the commonly used casting process method For differential pressure casting. For example, the Chinese invention application document with the application publication number of CN106513631A and the application publication da...
Claims
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Login to View More IPC IPC(8): B22D18/04
CPCB22D18/04
Inventor王亚军王建华周宝华邓猛郭玉州
Owner洛阳乾中新材料科技有限公司