High-strength underwater welding electrodes

A high-strength, wet-process technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of low strength of underwater electrodes, difficult to adapt to high-strength steel underwater welding requirements, etc. Welding process performance, good re-strike performance, and beautiful weld formation

Inactive Publication Date: 2007-04-04
LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing domestic underwater welding materials, such as TS203 and other underwater welding rods, have low strength, only about 400Mpa,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Commercially available H08E steel wire is used as the welding core, and the outer layer of the coating is coated with waterproof material. The waterproof material can be commonly used green paint, paraffin, etc., and the binder can be potassium sodium water glass or sodium water glass, which is commonly used. of adhesives. In this embodiment, binder adopts green varnish, makes coating adhesive with potassium sodium water glass, and the component of coating and percentage by weight thereof are: rutile 42, potassium feldspar 20, talcum 6, cellulose 8, Aluminum-magnesium alloy 4, ferromanganese 14, nickel powder 0, iron powder 6.

Embodiment 2

[0019] Commercially available H08E steel wire is used as the welding core, the outer layer of the coating is coated with waterproof material green paint, and potassium sodium water glass is used as the coating binder. The components and weight percentages of the coating are: rutile 48, potassium feldspar 15 , talc 8, cellulose 12, aluminum-magnesium alloy 2, ferromanganese 8, nickel powder 4, iron powder 3.

Embodiment 3

[0021] Commercially available H08E steel wire is used as the welding core, and the outer layer of the coating is coated with waterproof material green paint, and potassium sodium water glass is used as the coating binder. The composition and weight percentage of the coating are: rutile 54, potassium feldspar 12 , Talc 10, cellulose 4, aluminum-magnesium alloy 0, ferromanganese 6, nickel powder 2, iron powder 12.

[0022]

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PUM

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Abstract

A high-strength wet welding electrode for underwater welding is composed of the core made of H08E steel wire a coated surficial water-proof layer, and a coated sandwich layer containing rutile (42-54 Wt%), potash feldspar (12-20), talc (6-14), cellulose (4-12), ferromanganese (6-14), Ni powder (0-4), Fe powder (3-12) and Al-Mg alloy (0-4).

Description

technical field [0001] The invention belongs to welding materials, and mainly relates to a high-strength underwater wet welding rod. Background technique [0002] Underwater wet welding has many advantages such as simple equipment, low cost, high construction efficiency, and low cost. Various welding materials have been developed at home and abroad. However, due to the fast cooling rate and low weld performance, its underwater application on high-strength steel is limited. In order to adapt to the underwater welding of high-strength steel, foreign countries have developed corresponding underwater welding materials, such as 7018'S in the United States and Hydroweld FS in the United Kingdom. However, the existing domestic underwater welding materials, such as TS203 and other underwater welding rods, have low strength, only about 400Mpa, which is difficult to meet the underwater welding requirements of high-strength steel, and foreign materials are generally required for engin...

Claims

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Application Information

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IPC IPC(8): B23K35/365
Inventor 吴伦发王君民郑晓光朱云龙王明林朱丙坤刘宏范东亮
Owner LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS
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