【発明の名称】連続押出装置

Title:

【発明の名称】連続押出装置

Document Type and Number:

Japanese Patent JP2003511243

Kind Code:

A

Abstract:

Continuous extrusion apparatus for the production of copper tubing having a rotatable wheel formed with a plurality of circumferential grooves registering with (as shown in FIG. 1) abutments 4 formed on a die top 2. Respective exit apertures 6 each have a cross-sectional area of between two and five times the radial cross-section of the associated groove and lead to a passage 8 smoothly diverging to connect into an extrusion die chamber 10 housing an annular extrusion die (not shown). The appartus produces an extrudate in the form of a continuous, seamless, copper tube having a mass in excess of 500 kilograms extruded at a temperature of approximately 750 degrees Celsius.

Inventors:

Dawson John
Hawks Daniel John
Jones Phillip Andrew
Raidlow Stephen James

Application Number:

JP2001529884A

Publication Date:

March 25, 2003

Filing Date:

October 12, 2000

Export Citation:

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