Plunger for a diecasting machine

Details Plunger for a diecasting machine Plunger for a diecasting machine

1990-02-09

1991-09-17

Batten, Jr., J. Reed

Metal founding

Means to shape metallic material

Pressure shaping means

92246, 92255, 164314, B22D 1720

Patent

active

050485920

ABSTRACT:
A plunger for forcing molten aluminum or brass out of a casting cylinder of a diecasting machine includes a cap which is screwed via an internal thread onto an external thread of a supporting body and is made of a material, in particular a copper alloy, which has a greater coefficient of thermal expansion than the material of the cylinder, in particular steel, and the material of the supporting body, in particular steel. An inner cover face of the cap bears against a front face of the supporting body and, with its internal thread, is screwed thermally onto the external thread of the supporting body, and in addition, is preferably shrunk on thermally.

REFERENCES:
patent: 1326692 (1919-12-01), Rogatchoff
patent: 4036113 (1977-07-01), Kunz
patent: 4598762 (1986-07-01), Glas
patent: 4842039 (1989-06-01), Kelm
patent: 4886107 (1989-12-01), Zecman
patent: 4899804 (1990-02-01), Hammerer
"Alper AG/SA Stocklist of High Performance Copper Alloys", published: Jun. 17, 1987.

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