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Patent Searching and Data


Title:
MANUFACTURE OF DRAWING WIRE ROD
Document Type and Number:
Japanese Patent JPH0623486
Kind Code:
A
Abstract:

PURPOSE: To provide a manufacturing method of a drawing wire rod, in which working man-hours can drastically be saved and the yield of a product can be improved and the manufacturing time can be shortened and also the manufacturing cost can be reduced.

CONSTITUTION: By producing the alloy-made continuously cast rod 3 for forging press having a prescribed diameter (e.g. 8mm) or less with the continuous casting method, each process of bloom-forging → surface grinding, cutting → forging →(surface grinding), cutting → hot rolling is saved and direct cold-wire drawing treating process is executed. Further, at the time of the cold-wire drawing treating process, at first, after giving stress to the continuously cast rod surface by applying the wire drawing having <10% reducing ratio of a cross section to the continuously cast rod 3, the surface structure is improved by a heat treatment and the wire drawability is improved.


Inventors:
OKA TSUTOMU
HAMADA KAZUICHI
Application Number:
JP18419492A
Publication Date:
February 01, 1994
Filing Date:
July 10, 1992
Export Citation:
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Assignee:
MITSUBISHI MATERIALS CORP
International Classes:
B21C1/00; B22D11/00; (IPC1-7): B22D11/00; B21C1/00
Attorney, Agent or Firm:
Masatake Shiga (2 outside)