TUBE EXTRUSION METHOD Russian patent published in 2002 - IPC

Abstract RU 2184633 C2

FIELD: tube extruding. SUBSTANCE: method comprises steps of heating technological washer until normalized temperature lower than that of heating billet; feeding said washer to mandrel; feeding billet to extrusion axis; pressing out tube; removing remainder of blank and using it as back technological washer at subsequent pressing. EFFECT: prevention of pressing-in of technological washer, elimination of additional operations. 4 cl, 2 ex

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RU 2 184 633 C2

Authors

Smirnov V.G.

Smirnov G.V.

Danovskij N.G.

Dates

2002-07-10—Published

2000-06-06—Filed