HIGH−PURITY SPONGY TITANIUM MATERIAL AND ITS PRODUCTION METHOD

Title:

HIGH−PURITY SPONGY TITANIUM MATERIAL AND ITS PRODUCTION METHOD

Document Type and Number:

WIPO Patent Application WO/2003/066914

Kind Code:

A1

Abstract:

A high−purity spongy titanium material containing less amounts of oxygen and metal elements is economically produced. The vacuum separation time t in a vacuum separation step is t = tO &plus 15 to &plus 35 hour where tO is the time from the start of the vacuum separation till the time when the temperature of the central part of the material in a reaction vessel reaches to a stable temperature. At and near the central part of the material where the amounts of metal elements are a little, the specific area measured by the BET method is below 0.05 m²&sol g. The amount of oxygen after cutting and crushing is suppressed to a low level even if the cutting and crushing are carried out in the atmosphere.

More Like This:

JP6297404	Manufacturing method of titanium sponge and manufacturing method of titanium ingot using this
JP2020100900	METHOD FOR PRODUCTION OF SPONGE TITANIUM, AND PRODUCTION METHOD FOR TITANIUM PROCESSED ARTICLE OR CAST ARTICLE

Inventors:

WADA HISAYUKI (JP)

Application Number:

PCT/JP2002/001118

Publication Date:

August 14, 2003

Filing Date:

February 08, 2002

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SUMITOMO TITANIUM CORP (JP)
WADA HISAYUKI (JP)

International Classes:

C22B5/04; C22B9/04; C22B9/14; C22B34/12; C22C14/00; C23C14/34; (IPC1-7): C22B34/12; C22B5/04; C22B9/04

Foreign References:

JP2002053922A	2002-02-19
JPS6160839A	1986-03-28
JP2001262246A	2001-09-26
JP2001279345A	2001-10-10
JPH07258765A	1995-10-09

Attorney, Agent or Firm:

Ubukata, Motoshige (Kawaramachi 4-chome Chuo-k, Osaka-shi Osaka, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: HEATABLE TROUGH FOR MOLTEN ALUMINIUM FLOW

Next Patent: APPARATUS AND METHOD FOR MACHINING OF HARD METALS WITH REDUCED DETRIMENTAL WHITE LAYER EFFECT