Title:
PRODUCTION OF PIPE OF HIGH MELTING POINT METAL
Document Type and Number:
Japanese Patent JPS5844957
Kind Code:
A
Abstract:
PURPOSE: To facilitate the formation of a long-sized pipe of a high m.p. metal by forming a metallic pipe in a mold made of a water-cooled copper core in a vacuum or inert gaseous atmosphere.
CONSTITUTION: Cooling water (a) is flowed sufficiently in the water-cooled copper mold 8 and water-cooled copper core 2 of a mold 1 made of a water- cooled core toward a discharge port (b). A high m.p. metal is melted by an electron beam laser or arc in a vacuum or inert gaseous atmosphere and is conducted into the mold 1, whereby a high m.p. metallic pipe is formed.
Inventors:
OBATA SADAO
FUKUSHIMA EIJI
FUKUSHIMA EIJI
Application Number:
JP14174881A
Publication Date:
March 16, 1983
Filing Date:
September 10, 1981
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
B22D21/02; B22D15/02; B22D21/06; B22D25/02; (IPC1-7): B22D25/02
Attorney, Agent or Firm:
Noriyuki Noriyuki