CN103624375A - Ship welding technology - Google Patents

Abstract

The invention discloses a ship welding technology. The ship welding technology is characterized by comprising the following steps that firstly, a groove is manufactured, wherein the groove is manufactured with an edge planning machine through carbon arc gouging; secondly, the groove is processed; thirdly, welding is performed, the double-wire MAG welding technology is adopted in a plate splicing area, the CO2 gas shield automatic angle welding or semi-automatic angle welding is used for welding small parts and T type parts in a small assembling area, the longitudinal installing and welding technology integrating installing and welding is adopted at the longitudinal manufacturing position of a ship body, the closure technology is adopted, the CO2 ceramic backing welding is used for bottoming at the butt joint of a deck and an inner bottom plate of a double bottom, union melt welding is adopted in a cap, portions, such as the head and the tail which have large linear variation, of the ship body are welded through the CO2 gas shield welding, and the manual arc welding method is adopted in airtight and narrow space. According to the welding method, the welding efficiency is high, welding deformation is well controlled, the welding quality of the ship is effectively improved in the production practice process, cost is saved and efficiency is improved.

Description

A kind of Ship Welding technique

Technical field

The present invention relates to a kind of welding procedure, be specifically related to the High Efficiency Welding Process in a kind of shipbuilding.

Background technology

In the construction of boats and ships, welding is key and support technology wherein, during the chief engineer of welding and cost respectively account for hull construction chief engineer time and the 30%-40% of cost, the quality of solder technology is the important indicator of reflection hull construction quality good or not.Therefore, the efficient welding technology of research and development mechanization, automation is not only enterprise and is improved shipbuilding quality, enhances productivity, reduces construction cost, shortens the effective way of shipbuilding period, and is the technological progress growth point of realizing the Modern Shipbuilding Mode conversion of boats and ships parent company proposition.High speed and high efficiency welding are the developing direction of modern welding, are the only ways of realizing modernization welding.

Summary of the invention

The technical problem to be solved in the present invention is to provide the high-efficiency welding method in a kind of shipbuilding, to realize the modern ships efficient welding technology efficient, energy-saving and environmental protection of setting up.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

(1) prepare groove: adopting edge planer and carbon arc air gouging to prepare groove, is 0.6～0.8Mpa for the compressed air pressure of carbon arc air gouging;

(2) groove is processed: before weldering, conscientiously check whether groove size and assembly quality meet relevant requirements; That positive and negative in groove and in each 35mm of bevelled edge both sides and end face are removed is water stain, greasy dirt, iron rust, dross and carbon dig residual sticky carbon;

(3) welding: jigsaw district adopts mariages MAG weldering solder technology; Group's dress district adopts CO ₂the automatic fillet welding of gas shield or semi-automatic fillet welding welding primary structural component and T-shaped member; Hull longitudinal manufacture place adopts dress, welding integrated vertical bone Erection Welding Technology; Finally close up greatly technique, the inner bottom plating abutment joint of deck and double bottom adopts CO ₂ceramic backing weldering bottoming, Lincoln weld capping, in line styles such as hull stem and afterbodys, change compared with large part, adopt CO ₂gas shielded arc welding welds; At airtight and small space, adopt manual electric arc welding method; Close up greatly the welding of seam and should first weld the coverboard abutment joint between total or segmentation, then weld its interstructural butt weld, the then angle welding of welding structure and coverboard; First weld fillet welding in the vertical position, rear weldering flat fillet weld; Symmetrical backstep sequence in should adopting minute longer weld seam during manual welding; Close up greatly weld seam assembling inspection declaration qualified after, in 20 hours, weld.

Beneficial effect of the present invention: compare with traditional solder technology, welding method of the present invention, welding efficiency is high, and welding deformation is well controlled, and in production practices process, effect improves the welding quality of boats and ships, cost-saving, raises the efficiency.

The specific embodiment

Below in conjunction with specific embodiment, technical scheme of the present invention is elaborated.

A Ship Welding technique, is characterized in that: comprise the following steps:

(1) prepare groove: adopt edge planer and carbon arc air gouging to prepare groove, the compressed air pressure for carbon arc air gouging, is generally 0.6～0.8Mpa;

(2) groove is processed: before weldering, conscientiously check whether groove size and assembly quality meet relevant requirements; That positive and negative in groove and in each 35mm of bevelled edge both sides and end face are removed is water stain, greasy dirt, iron rust, dross and carbon dig residual sticky carbon;

(3) welding: jigsaw district adopts mariages MAG weldering solder technology; Group's dress district adopts CO ₂the automatic fillet welding of gas shield or semi-automatic fillet welding welding primary structural component and T-shaped member; Hull longitudinal manufacture place adopts dress, welding integrated vertical bone Erection Welding Technology; Finally close up greatly technique, the inner bottom plating abutment joint of deck and double bottom adopts CO ₂ceramic backing weldering bottoming, Lincoln weld capping, in line styles such as hull stem and afterbodys, change compared with large part, adopt CO ₂gas shielded arc welding welds; At airtight and small space, adopt manual electric arc welding method; Close up greatly the welding of seam and should first weld the coverboard abutment joint between total or segmentation, then weld its interstructural butt weld, the then angle welding of welding structure and coverboard; First weld fillet welding in the vertical position, rear weldering flat fillet weld; Symmetrical backstep sequence in should adopting minute longer weld seam during manual welding; Close up greatly weld seam assembling inspection declaration qualified after, in 20 hours, weld.

Above-described embodiment is only in order to illustrate technical scheme of the present invention; but not design of the present invention and protection domain are limited; those of ordinary skill in the art modifies or is equal to replacement technical scheme of the present invention; and not departing from aim and the scope of technical scheme, it all should be encompassed in claim scope of the present invention.

Claims (1)

1. a Ship Welding technique, is characterized in that: comprise the following steps:

(1) prepare groove: adopting edge planer and carbon arc air gouging to prepare groove, is 0.6～0.8Mpa for the compressed air pressure of carbon arc air gouging;

(2) groove is processed: before weldering, conscientiously check whether groove size and assembly quality meet relevant requirements; That positive and negative in groove and in each 35mm of bevelled edge both sides and end face are removed is water stain, greasy dirt, iron rust, dross and carbon dig residual sticky carbon;

(3) welding: jigsaw district adopts mariages MAG weldering solder technology; Group's dress district adopts CO ₂the automatic fillet welding of gas shield or semi-automatic fillet welding welding primary structural component and T-shaped member; Hull longitudinal manufacture place adopts dress, welding integrated vertical bone Erection Welding Technology; Finally close up greatly technique, the inner bottom plating abutment joint of deck and double bottom adopts CO ₂ceramic backing weldering bottoming, Lincoln weld capping, in line styles such as hull stem and afterbodys, change compared with large part, adopt CO ₂gas shielded arc welding welds; At airtight and small space, adopt manual electric arc welding method; Close up greatly the welding of seam and should first weld the coverboard abutment joint between total or segmentation, then weld its interstructural butt weld, the then angle welding of welding structure and coverboard; First weld fillet welding in the vertical position, rear weldering flat fillet weld; Symmetrical backstep sequence in should adopting minute longer weld seam during manual welding; Close up greatly weld seam assembling inspection declaration qualified after, in 20 hours, weld.