Structure for improving porosity of key cylinder casting
A porosity and lock core technology, which is applied in the structural field of improving the porosity of lock core castings, can solve the problems of weak lock core strength, many pores, and unqualified porosity, and achieves qualified porosity, less pores and guaranteed strength. Effect
Active Publication Date: 2012-09-19
WUXI NEST BIOTECHNOLOGY CO LTD
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Problems solved by technology
[0002] In the existing lock core casting mold, after the lock core is cast, there are many air holes inside the lock core, which makes the strength of the lock core weak. The reason is that the length of the flow channel and too much air in the flow channel lead to pores rate failed
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Embodiment Construction
[0011] See figure 2 , the present invention includes a high-pressure liquid feed port (belonging to the existing mature structure, not shown in the figure), a splitter cone 1, a runner 2, a gate, and a lock cylinder cavity 3, and the splitter cone 1 is connected to the high-pressure liquid feed port , the runner 2, the splitter cone includes the top conical mouth 4, the lower part of the horizontal runner part 5, the horizontal runner part to the remaining cavity part 6 on the bottom surface of the top conical mouth, the gate includes the upper gate 7, the lower gate 8. The upper gate 7 and the lower gate 8 are respectively connected to the upper and lower parts of the lock core cavity 3, and the length L from the lock core cavity 3 to the center line of the splitter cone 1 is shortened.
[0012] The runner 2 includes a horizontal runner 9 and a vertical runner 10 , and the lower gate 8 communicates with the horizontal runner 9 through the vertical runner 10 .
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The invention provides a structure for improving the porosity of a key cylinder casting, by which little pores and qualified porosity inside a casted key cylinder is achieved so as to ensure the intensity of the key cylinder. The structure comprises a high-pressure liquid inlet, a diversion cone, a flow way, a pouring gate and a key cylinder cavity. The diversion cone is connected with the high-pressure liquid inlet and the flow way, wherein the diversion cone comprises a top conical port, a lower part communicated horizontal flow way part and other cavity parts from the horizontal flow way part to the bottom surface of the top conical port; the pouring gate comprises an upper pouring gate and a lower pouring gate; the upper pouring port and the lower pouring port are respectively connected with the upper part and the lower part of the key cylinder cavity; and the length of the central line from the key cylinder cavity to the diversion cone is shortened.
Description
technical field [0001] The invention relates to the field of die-casting molds for lock cylinders, in particular to a structure for improving the porosity of lock cylinder castings. Background technique [0002] In the existing lock core casting mold, after the lock core is cast, there are many air holes inside the lock core, which makes the strength of the lock core weak. The reason is that the length of the flow channel and too much air in the flow channel lead to pores rate failed. [0003] For the pouring structure of the existing lock cylinder casting runner, see figure 1 , which includes a splitter cone 1, a runner 2, and a gate 3, wherein a lock cylinder cavity 4 corresponds to a runner 2 and a gate 3, and the splitter cone 1 is the horizontal plane from the high-pressure liquid inlet to the runner 2 The tapered closed cavity, the length l of the center line from the lock core cavity 4 to the splitter cone 1 is long, wherein, because the upper material of the lock c...
Claims
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IPC IPC(8): B22D17/22
Inventor 张卫
Owner WUXI NEST BIOTECHNOLOGY CO LTD