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Title:
PRODUCTION OF CORROSION RESISTING HIGH GRADE CAST IRON TUBE
Document Type and Number:
Japanese Patent JPH0718409
Kind Code:
A
Abstract:

PURPOSE: To produce a cast iron tube combining superior toughness and corrosion resistance.

CONSTITUTION: At the time of producing a cast iron tube by applying ferritizing to a tube main body 1 after casting, blasting treatment is applied to the tube main body 1 after casting and a lower thermally sprayed layer 2 consisting of Al or Al alloy and an upper thermally sprayed layer 3 consisting of corrosion resisting metal having a melting point higher than annealing temp. are formed, and then ferritizing is done. Subsequently, an Fe-Al alloy layer 5 and a corrosion resisting alloy layer 6 are formed by joining on the tube main body 1 side.


Inventors:
Kurotobi, Manabu
Uchida, Mutsuo
Application Number:
JP1993000165564
Publication Date:
January 20, 1995
Filing Date:
July 05, 1993
Export Citation:
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Assignee:
KUBOTA CORP
International Classes:
C21D5/00; C21D9/08; C23C4/16; C23C10/28; (IPC1-7): C23C10/28; C21D5/00; C21D9/08; C23C4/16
Attorney, Agent or Firm:
安田 敏雄



 
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