Seam welder electrode wheel for invar boards of liquid cargo tank of LNG ship

A technology for LNG ships and cargo tanks, applied in electrode features, roller electrode welding, etc., can solve the problems of difficult control of welding quality, poor stability, and low welding efficiency, and achieve easy control of welding quality, good stability, and improved welding. The effect of efficiency

Inactive Publication Date: 2013-10-02
ZHEJIANG JINHUA JUNENG ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Using manual welding, its welding efficiency is low, the welding quality is difficult to control, and the stability is poor, which cannot meet the welding requirements of LNG ships at all.

Method used

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  • Seam welder electrode wheel for invar boards of liquid cargo tank of LNG ship
  • Seam welder electrode wheel for invar boards of liquid cargo tank of LNG ship
  • Seam welder electrode wheel for invar boards of liquid cargo tank of LNG ship

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] As shown in the figure, a seam welding machine electrode wheel used for invar steel plates in liquid cargo tanks of LNG ships includes a wheel body 1, a welding working surface 2 of the electrode wheel is arranged on the outer peripheral surface of the wheel body 1, and the two sides of the wheel body 1 An annular slope 3 is provided between the side end surface and the welding working surface 2, a circular groove 4 is coaxially provided on one end surface of the wheel body 1, and a circular sealing plate is coaxially provided on the other end surface of the wheel body 1 9. There is an annular weld 91 between the circular sealing plate 9 and the wheel body 1, the circular sealing plate 9 is welded to the wheel body 1 through silver brazing, and the circular sealing plate 9 and the circular groove 4 A set of mounting holes is arranged ax...

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Abstract

The invention discloses a seam welder electrode wheel for invar boards of a liquid cargo tank of an LNG (Liquefied Natural Gas) ship. The wheel is characterized by comprising a wheel body, wherein a welding working surface of the electrode wheel is arranged on an external circumference surface of the wheel body; annular oblique surfaces are arranged between the two side end surfaces of the wheel body and the welding working surface; a circular groove is formed on one side end surface of the wheel body coaxially; a circular sealing board is arranged on the other side end surface of the wheel body coaxially; a mounting hole set is axially arranged between the circular sealing board and the circular groove in a penetrating way; the wheel body is internally provided with a circulating water channel; and a water inlet hole and a water outlet hole are formed in the center of the circular groove, and are communicated by the circulating water channel. The wheel has the advantages that since the wheel is combined with a seam welder, continuous automatic welding of the invar boards of the liquid cargo tank of the LNG ship can be realized; the welding efficiency is improved greatly; the welding quality is easy to control; and the stability is better.

Description

technical field [0001] The invention relates to an electrode wheel of a seam welding machine, in particular to an electrode wheel of a seam welding machine used for an invar steel plate in a cargo tank of an LNG ship. Background technique [0002] The LNG (Liquefied Natural Gas) ship is a special ship for transporting liquefied gas at minus 163 degrees Celsius. It is a high-tech, high-difficulty, high-value-added "three-high" product, and a "sea super refrigerated vehicle". At present, manual argon arc welding is mostly used for the welding of invar steel plates, and the weld seam of invar steel plates in the liquid cargo tank of a 170,000-ton LNG ship is more than 150,000 meters long, and the welding workload is huge. With manual welding, its welding efficiency is low, the welding quality is difficult to control, and the stability is poor, which cannot meet the welding requirements of LNG ships at all. Contents of the invention [0003] The technical problem to be solved...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/06B23K11/30
Inventor 吕贤红吕振华
Owner ZHEJIANG JINHUA JUNENG ELECTRONICS TECH
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