СПОСОБ ВОЛОЧЕНИЯ ЗАГОТОВОК: патент на изобретение

科研成果: Patent

摘要

FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy, particularly, to plastic deformation of metal structure. Proposed method comprises multi-pass drawing of cut-to-length tube billet via drawing die orifice and mandrelling tube inner space. In first pass, said cut-to-length tube billet is drawn to make first-pass tube with OD making 97-100% of initial biller ID. Produced first-pass tube is placed inside initial cut-to-length tube billet for drawing to second-pass tube with crosswise sizes of first-pass tube. Produced second-pass tube is placed inside cut-to-length initial tube billet to repeat the cycle.
EFFECT: improved plastic strain.
投稿的翻译标题METHOD OF DRAWING: patent of invention
源语言Russian
专利号2476288
IPCB21J 5/00,B21C 1/24,B82B 3/00
归档日期27/01/2009
Published - 27 二月 2013

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