Extrusion press device and extrusion press method
AssigneeUbe Machinery Corporation, Ltd.
InventorTakeharu Yamamoto
Life of this patent
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Abstract
An extrusion press device according to the present invention includes: an extrusion unit that includes a container configured to store an extrusion material and an end platen configured to support a die-from which the extrusion material is extruded; and a control unit configured to control operation of the extrusion unit, including container sealing force that presses the container against the die. The control unit performs control to apply complementary pressure corresponding to reduced container sealing force that is increased along with progression of extrusion, to the container in a direction of the extrusion during a period from start to completion of the extrusion.
Claims10
An extrusion press device, comprising:
- an extruder comprising a container configured to store an extrusion material, and an end platen configured to support a die from which the extrusion material is extruded;
- and
- a controller configured to control operation of the extruder by controlling a container sealing force that presses the container against the die,
- wherein the controller is configured to control application of a complementary pressure corresponding to a reduced container sealing force to the container in a direction of the extrusion during a period from a start to completion of the extrusion, the reduced container sealing force being increased during progression of extrusion.
An extrusion press method of extruding an extrusion material from a die while pressing a container against the die with a container sealing force, the extrusion material being extruded from the die and being stored in the container, the extrusion press method comprising;
- applying a complementary pressure corresponding to a reduced container sealing force to the container in a direction of the extrusion during a period from the start to completion of the extrusion, wherein:
- the container sealing force at a start of extrusion is a reference container sealing force,
- the container sealing force during the extrusion is an in-extrusion container sealing force, and
- a difference between the reference container sealing force and the in-extrusion container sealing force is the reduced container sealing force.
Dependencies are inferred from the claim text.