Title:
CONTINUOUS HIGH-SPEED WELDING METHOD OF DOUBLE-WOUND METAL TUBE, AND WELDING FURNACE THEREOF
Document Type and Number:
Japanese Patent JP3348093
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To consistently and continuously produce a double-wound metal tube used for a brake tube, etc., for a car according to the tube-manufacturing speed.
SOLUTION: The welding speed is increased to keep the balance with the tube-manufacturing speed by using the high-temperature reducing molten salt of a large calorific capacity as a heating medium.
Inventors:
Yukito Nomura
Application Number:
JP2001064518A
Publication Date:
November 20, 2002
Filing Date:
March 08, 2001
Export Citation:
Assignee:
Yukito Nomura
International Classes:
B23K1/00; B23K1/20; B23K28/00; B23K31/02; C21D1/46; C21D9/58; C21D9/08; (IPC1-7): B23K1/00; B23K1/20; B23K31/02
Domestic Patent References:
| JP10277637A | ||||
| JP62199293A |
Attorney, Agent or Firm:
Okuyama Shoichi (2 outside)