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Production technology of sand core in oil duct of automobile engine block

A technology of automobile engine and production process, which is applied in the direction of cores, manufacturing tools, metal processing equipment, etc., can solve the problems of inability to batch production, high rate of manufacturing core breakage, and large cross-section changes, so as to achieve reliable curing and increase the yield rate , the effect of eliminating internal stress

Active Publication Date: 2012-12-26
华东泰克西汽车铸造有限公司
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Problems solved by technology

[0002] The existing oil channel sand cores in the cylinder body of automobile engines are becoming slender and complex in structure. This kind of sand cores are slender and curved, and the cross-section changes greatly, so it is difficult to form. The current production process is used to manufacture broken cores. higher rate
Cannot be mass-produced

Method used

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  • Production technology of sand core in oil duct of automobile engine block
  • Production technology of sand core in oil duct of automobile engine block

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should understand that following specific embodiment is only for illustrating the present invention and is not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand the present invention Modifications in various equivalent forms fall within the scope defined by the appended claims of the present application.

[0016] Please combine figure 1 and figure 2 As shown, the present invention discloses a production process for sand cores in the oil passage of an automobile engine cylinder block, the production process needs to provide a special sand core mold 100 and a special drying rack 100';

[0017] Wherein, the special-purpose sand core mold 100 includes an inverted side core box body 20 and a fixed side core box body 30 arranged left and right and abutted against each other, an...

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Abstract

The invention discloses a production technology of sand core in oil ducts of an automobile engine block, characterized in that: a special sand core mold is used, sand shooting is carried out through a nozzle arranged above the cavity to let the sand be subject to molding in the cavity, a venting block is arranged below the cavity for venting, so that the venting of the gas in the cavity with the sand shooting pressure is convenient, the shot sand is compact, the solidification is reliable, and the yield rate of the sand core is increased; in addition, by hanging the sand core on a special drying rack for drying, when being dried, the deformation of the sand core can be corrected under the effect of gravity, the internal stress is eliminated, so that the yield rate of the sand core is further increased.

Description

technical field [0001] The invention relates to a production process of a sand core, in particular to a production process of a sand core used in an oil channel of an automobile engine cylinder body. Background technique [0002] The oil channel sand cores in the existing automobile engine cylinders are becoming slender and complex in structure. This kind of sand cores are slender and curved, and the cross-section changes greatly, making it difficult to form. The current production process is used to manufacture broken cores. The rate is higher. Cannot be mass-produced. [0003] Therefore, a new technical solution is needed to solve the above problems. Contents of the invention [0004] In view of the problems and deficiencies in the above-mentioned prior art, the object of the present invention is to provide a production process for improving the yield rate of producing slender sand cores. [0005] In order to achieve the above object, the production process of the pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/10
Inventor 孟富银
Owner 华东泰克西汽车铸造有限公司
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