Casting insert device for die casting
A technology of inserts and cylinders, applied in the field of insert devices for die casting, can solve the problems of unstable process control, difficult demolding of products, improper improvement, etc., and achieve easy control, reduce thermal shock, and reduce bubble generation. Effect
Inactive Publication Date: 2012-08-29
春兴铸造(苏州工业园区)有限公司
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Problems solved by technology
[0003] However, with the first method, there is an instability in process control
The second type has certain risks, and improper improvement will cause too many pores
The third type of draft angle is too small, which will cause the product to be difficult to demould and affect production
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[0018] like Figure 1~3 The die-casting insert device shown includes an insert body 1, and one end of the insert body 1 is provided with a housing cavity 2, and a pin is connected to the housing cavity 2, and its difference lies in: the The pin includes a terminal 3, and a cylinder 4 extends behind the terminal 3, and the cross-sectional area of the terminal 3 is smaller than the cross-sectional area of the cylinder 4. Thereby, it can be ensured that the end 3 of the pin is in close contact with one end of the accommodating cavity 2 in the insert body 1 . At the same time, a pin handle 6 is provided at the tail end of the column body 4 , and a draft slope 5 is provided between the column body 4 and the pin handle 6 . In this way, it is beneficial to combine the pin handle 6 with other parts in the subsequent processing, so as to realize rapid drafting. Moreover, considering that the end 3 and the cylinder 4 of the pin can fully realize the precise fit with the housing ca...
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Abstract
The invention relates to a casting insert device for die casting, which comprises a casting insert body. An accommodating cavity is arranged in one end of the casting insert body, and a pin is connected to the inside of the accommodating cavity. The casting insert device is characterized in that the pin comprises an end, a column body extends behind the end, and the cross section area of the end is smaller than that of the column body; a pin handle is arranged at the tail end of the column body, a draft ramp is arranged between the column body and the pin handle, and shapes of the end and thecolumn body are matched with the shape of the accommodating cavity. The bending phenomenon of the end of the pin can be discovered in time by the matching of the pin and the casting insert body; moreover, the stepped combination of the end and the column body reduces the overall heat shock to the pin and ensures the concentricity of a big end and a small end of the pin, therefore, the possibilityof the generation of bubbles can be reduced thoroughly.
Description
technical field [0001] The invention relates to an insert device, in particular to an insert device for die casting. Background technique [0002] Porosity is well known to be a common defect in the foundry industry. There are roughly three existing ways to solve the pores: one is to adjust the temperature of the aluminum soup, the filling speed, the position of the high and low speed switching point, and the spraying through the process adjustment. The other is to improve the gating system of the mold through mold adjustment. The other is to reduce the machining allowance by reducing the draft angle of the pin and increasing the diameter of the small end of the pin. [0003] However, with the first approach, there is instability in the process control. The second type has certain risks, and improper improvement will cause too many pores. The third type of draft angle is too small, which will cause the product to be difficult to demould and affect production. Contents ...
Claims
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IPC IPC(8): B22D17/26
Inventor 孙洁晓万智
Owner 春兴铸造(苏州工业园区)有限公司