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Patent Searching and Data


Title:
MANUFACTURE OF SEAMLESS TUBE OF TITANIUM MATERIAL
Document Type and Number:
Japanese Patent JPH03151105
Kind Code:
A
Abstract:

PURPOSE: To prevent titanium oxide from sticking to inclined rolls by piercing or drawing a billet or a hollow piece as water of high pressure exceeding a specified pressure is ejected on the surfaces of inclined rolls for descaling.

CONSTITUTION: A solid billet 1 of titanium material is pierced and rolled by a piercer to manufacture a hollow piece 2. A piping 4 to supply high pressure water is provided near a cone type a barrel type roll 3 of the piercer. The piping 4 is provided with plural nozzles 5 and water of high pressure ≥50 kg/cm2 is ejected from the nozzles 5 onto the surface of the roll. Besides, iron wire brush 6 is pushed to the surface of the roll to descale the surface of the roll 3. When the solid billet 1 is pierced and rolled, titanium oxide and portion of titanium material stuck to the surface of the roll 3 is removed by the brush 6 as the high pressure water is ejected. Consequently, a seamless tube of titanium material can be manufacture at a low cost and in a high yield.


Inventors:
NAKANISHI TETSUYA
Application Number:
JP29069389A
Publication Date:
June 27, 1991
Filing Date:
November 08, 1989
Export Citation:
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Assignee:
SUMITOMO METAL IND
International Classes:
B21B28/04; B21B19/02; B21B19/04; B21B3/00; (IPC1-7): B21B28/04
Attorney, Agent or Firm:
Tono Kono