Title:
穿孔圧延用プラグの製造設備
Document Type and Number:
Japanese Patent JP5365724
Kind Code:
B2
Abstract:
Provided is an equipment system for producing a piercing-rolling plug to be used for producing a seamless steel tube/pipe, which includes a shotblasting device for applying shotblasting on a surface of the plug, and an arc-spraying device for performing arc-spraying of iron wires on a surface of a base metal of the plug to which the shotblasting is applied, so as to form a film containing oxide and Fe thereon. The arc-spraying device includes plural spraying booths each of which separately forms part of the film in turn in each of sections into which the surface of the base metal of the plug is divided along an axial direction of the plug. The production efficiency of the plug can therefore be maintained at a high level, and steady enhancement of the durability life of the plug can be realized during the piercing-rolling.
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Inventors:
Tomo Yamamoto
Yasuyoshi Hidaka
Yasuto Higashida
Yasuyoshi Hidaka
Yasuto Higashida
Application Number:
JP2012098767A
Publication Date:
December 11, 2013
Filing Date:
April 24, 2012
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
B21B25/00; B21B19/04; C23C4/02; C23C4/12
Domestic Patent References:
| JP60136355U | ||||
| JP2011001612A |
Foreign References:
| WO2009057471A1 | ||||
| WO2010100968A1 |
Attorney, Agent or Firm:
Michio Mori Patent Office
Michio Mori
Hideyuki Matsunaga
Michio Mori
Hideyuki Matsunaga