Welding method for stainless steel

A welding method and stainless steel technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of unfavorable stainless steel protection and increase the difficulty of stainless steel control, so as to reduce shipbuilding cost, reduce shipbuilding cycle and control welding cost Effect

Active Publication Date: 2018-04-24
南通象屿海洋装备有限责任公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The current welding method is not conducive to the protection of stainless steel and a

Method used

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[0018] In order to make the purpose and technical solutions of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are some, but not all, embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] It will be understood by those of ordinary skill in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have mean...

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Abstract

The invention belongs to the field of welding, and relates to a welding method for stainless steel. The welding method comprises the following steps of: step I, forming a groove which is a double-Y-shaped groove; step II, checking whether a gap between welding root parts meets 0 or not, and checking whether a stainless steel jointed board is staggered or not; step III, checking and cleaning a welding bead, and coating the two sides of the welding bead by saturated limewater, and grinding and clearing a welding seam; step IV, welding, wherein the root parts of the double-Y-shaped groove are firstly welded, welding current of the root parts is controlled to be 430-460 A, electric-arc voltage is 30-32V, welding speed is 28-30m/h, and heat input is 1.48-1.98 KJ/mm; and welding the groove; andstep V, checking reverse molding, and performing sealing run. The welding method can effectively shorten a ship building period, reduces ship building cost, and reduces energy consumption.

Description

technical field [0001] The invention belongs to the field of welding and relates to a stainless steel welding method. Background technique [0002] The groove of the existing stainless steel submerged arc puzzle is welded on the front side, turned over and gouged, and then welded to achieve the effect of full fusion of the weld seam. The current welding method is not conducive to the protection of stainless steel and also increases the difficulty of controlling the deformation of stainless steel welding. Contents of the invention [0003] The application provides a stainless steel welding method, which can effectively reduce the shipbuilding period, reduce the shipbuilding cost, and reduce energy consumption. [0004] In order to realize the above-mentioned technical purpose, the concrete technical scheme that the present invention takes, a kind of welding method of stainless steel comprises the following steps: [0005] Step 1. Opening the groove, the groove is set as a...

Claims

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Application Information

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IPC IPC(8): B23K9/23
CPCB23K9/23
Inventor 徐曙龚海磊叶庆丁程程乔东旭
Owner 南通象屿海洋装备有限责任公司
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