Electromagnetic drive-type die casting decompression valve,...

Details Electromagnetic drive-type die casting decompression valve,... Electromagnetic drive-type die casting decompression valve,...

2005-08-02

2005-08-02

Johnson, Jonathan (Department: 1725)

Metal founding

Means to shape metallic material

Pressure shaping means

C164S410000

Reexamination Certificate

active

06923243

ABSTRACT:
An electromagnetic drive-type die casting decompression valve comprises a drive shaft, provided inside a drive block, driven by electromagnetic force from a solenoid, and a valve shaft, provided inside a valve block separate from the drive shaft, provided with a valve body on one shaft end. Also, a closing spring working jointly to urge the valve body in a closing direction is provided on the valve shaft, while an opening spring working jointly to urge the valve body in the opening direction is provided on the drive shaft. The valve block is also provided in a replaceable manner. According to this type of electromagnetically driven die casting decompression valve, bouncing is not caused at the time of closing a decompression valve, and it is also possible to significantly decrease maintenance time and repair costs even when problems arise, such as molten metal infiltrating into a valve body.

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patent: 2002-239707 (2002-08-01), None

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