Mold core structure for casting inclined hole and molding method thereof
A technology of slanted core and slanted hole, which is applied in the direction of casting molding equipment, cores, molds, etc., can solve the problems that the slanted core and the lower core head are easy to break, the positioning effect cannot be achieved, and the casting quality of the casting is affected. Avoid the effect of unstable connection, not easy to deflection, precise and stable positioning
Active Publication Date: 2021-11-05
DALIAN JINHE CASTING
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Problems solved by technology
[0002]In the existing casting process, the casting of inclined holes has always been a difficult problem. It is necessary to preset the inclined core in the sand box, because the center of gravity of the inclined core is unstable , it is difficult to effectively locate it, and when the molten iron is poured, due to the impact of the molten iron, the inclined core is easy to deflect at the original angle, which affects the casting quality of the casting
In the prior art, in order to stabilize the oblique core, there is a method of enlarging the lower core head, but the obtuse angle between the oblique core and the lower core head is easily broken, and a good positioning effect cannot be achieved
Method used
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[0017] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0018] See attached figure 1 , a core structure for casting inclined holes, including an inclined core 1 for forming an inclined hole in a casting and a support core head 2 for supporting the inclined core, and the support core head 2 is arranged at an acute angle with the inclined core 1 .
[0019] Further, the support core head 2 is formed by the bottom end of the inclined core protruding from the lower surface of the cavity and extending horizontally to one side, and the support core head 1 is arranged in the horizontal direction.
[0020] Further, the inclined core 1 and the supporting core head 2 are integrated. Ensure the connection strength between the inclined core 1 and the supporting core h...
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The invention belongs to the technical field of inclined hole casting, and particularly relates to a mold core structure for casting an inclined hole and a modeling method thereof. The mold core structure comprises an inclined mold core for forming the inclined hole of a casting and a supporting core head for supporting the inclined mold core, and the supporting core head and the inclined mold core are arranged at an acute angle. According to the mold core structure, the technical prejudice that a large core print is made along a plane in two directions in the prior art is overcome, and the oblique core and the core print are effectively prevented from being broken through one-way extension of the core print, so that the casting quality is ensured. According to the mold core structure, due to the consistency of the supporting core head and the inclined mold core in the extending direction, it is guaranteed that the gravity center is stable, the inclined mold core is not prone to deflection, breakage caused by unstable connection between the inclined mold core and the supporting core head is avoided, and therefore it is guaranteed that the inclined mold core is accurately and stably positioned.
Description
technical field [0001] The invention belongs to the technical field of oblique hole casting, and in particular relates to a core structure for casting oblique holes and a molding method thereof. Background technique [0002] In the existing casting process, the casting of inclined holes has always been a difficult problem. It is necessary to preset the inclined core in the sand box. Because the center of gravity of the inclined core is unstable, it is difficult to effectively position it, and when pouring molten iron , due to the impact of molten iron, the inclined core is easy to deflect at the original angle, which affects the casting quality of the casting. In the prior art, in order to stabilize the inclined core, there is a method of enlarging the lower core head, but the obtuse angle between the inclined core and the lower core head is easily broken, and a good positioning effect cannot be achieved. Contents of the invention [0003] According to the above-mentioned...
Claims
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IPC IPC(8): B22C9/10B22C21/14
CPCB22C9/10B22C9/106B22C21/14Y02P10/25
Inventor 马广华吕芳遂于祥增管兆国
Owner DALIAN JINHE CASTING