UNDERWATER WELDING NOZZLE - MITSUI SHIPBUILDING ENG

Title:

UNDERWATER WELDING NOZZLE

Document Type and Number:

Japanese Patent JP2003088959

Kind Code:

A

Abstract:

To provide an underwater welding nozzle which can ensure a high cavity part maintaining effect even when a base material is welded in an inclined manner.

This underwater welding nozzle 1 has a gas feed port 8 to feed a shielding gas to a nozzle tip part 2. A cylindrical shield wall 9 is protruded from a tip of a nozzle tip part 2, and a space inside the shield wall 9 forms a pressure chamber 10 for forming a cavity part filled with the shielding gas fed from the gas feed port 8. An ejection port 11 for ejecting curtain water in a skirt manner is provided on the outer circumferential side of the shield wall 9 at the nozzle tip part 2, and a space between a water curtain W formed by the curtain water ejected from the ejection port 11 and the shield wall 9 forms a buffer chamber 14.

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Inventors:

UCHIYAMA IZUMI
ONO YUTAKA
IRIE TAKAHIRO

Application Number:

JP2001280899A

Publication Date:

March 25, 2003

Filing Date:

September 17, 2001

Export Citation:

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Assignee:

MITSUI SHIPBUILDING ENG

International Classes:

B23K9/29; B23K9/00; B23K9/095; B23K9/16; (IPC1-7): B23K9/29; B23K9/00; B23K9/095; B23K9/16

Attorney, Agent or Firm:

Shinichi Ogawa (2 outside)

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