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Nickel-base welding rod

A technology of nickel-based welding rods and welding rods, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve problems such as arc stability and slag coverage, low diffusible hydrogen content, and poor weld formation , to achieve the effect of good slag removal, excellent operation performance and moderate plasticity

Inactive Publication Date: 2010-06-23
LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This coating type electrode has good slag removal and low diffusible hydrogen content, but the arc stability and slag coverage are poor, the weld shape is not good, and the weld bead is high

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The components of the coating used in the electrode of the present invention and their mass fractions are as follows: rutile: 50%, titanium dioxide: 2%, fluorite: 23%, cryolite 8%, phlogopite: 2%, zircon sand: 3% %, soda ash 1.5%, metal manganese: 5%, ferro-titanium: 3.5%, ferro-niobium: 2%. Among them, Ti in ferro-titanium: 25-35%, and Nb in ferro-niobium: 50-60%.

[0032] The mechanical property requirements of weld core deposited metal are: R P0.2 ≥360MPa, Rm≥550Mpa, A≥27%; the mass percentage of the chemical composition of the welding core deposited metal is: C: 0.017, S: 0.0081, P: 0.005, Si: 0.821, Mn: 5.10, Cr: 15.1, Ni : 68.93, Fe: 7.83, Cu: 0.040, Ti0.142, Nb: 1.37.

[0033] After mixing the raw materials of the drug skin evenly, pulverize the particle size below 40 mesh, add potassium sodium water glass of 43-48Be (20° C.) accounting for 25-30% of the mass content of the solid component, and prepare a paste for the drug skin. Using the deposited metal with ...

Embodiment 2

[0036] The components of the drug skin and their mass parts are as follows: rutile: 36%, titanium dioxide: 7%, fluorite: 30%, cryolite 5%, phlogopite: 4%, zircon sand: 2%, soda ash 1% , Manganese metal: 10%, ferro-titanium: 2%, ferro-niobium: 3%.

[0037] Other conditions are identical with embodiment 1.

[0038] The electrode produced according to the above process has smooth surface, high yield and stable eccentricity; stable arc during welding, good slag removal, and excellent operating performance of the electrode; beautiful weld shape, moderate bead height, and moderate weld penetration angle; Metal strength and plasticity are moderate.

Embodiment 3

[0040] The components of the coating and their mass parts are as follows: rutile: 45%, titanium dioxide: 6%, fluorite: 20%, cryolite 3%, phlogopite: 3.5%, zircon sand: 4%, soda ash 0.5% , Manganese metal: 10%, ferro-titanium: 4%, ferro-niobium: 4%.

[0041] Other conditions are identical with embodiment 1.

[0042] The electrode produced according to the above process has smooth surface, high yield and stable eccentricity; stable arc during welding, good slag removal, and excellent operating performance of the electrode; beautiful weld shape, moderate bead height, and moderate weld penetration angle; Metal strength and plasticity are moderate.

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Abstract

The invention relates to a welding material technology, in particular to a nickel-base welding rod. The welding rod uses a SNi6062 welding wire as a core wire. The electrode coating comprises the following solid ingredients in percentage by mass: 36-50% of rutile, 2-7% of titanium pigment, 20-30% of fluorite, 3-8% of cryolite, 2-4% of phlogopite, 2-4% of zircon sand, 0.5-1.5% of sodium carbonate, 5-10% of manganese metal, 2-4% of ferrotitanium containing 25-35% of Ti, and 2-4% of ferroniobium containing 50-60% of Nb. The nickel-base welding rod has the advantages of favorable performance of production technique, smooth welding rod surface, high yield, stable eccentricity; during welding, the nickel-base welding rod has the advantages of stable electric arc, basically no splash, favorable slag detachability and outstanding operating performance; and the appearance of the welding seam is beautiful, the height of a weld bead is moderate, the wetting angle of a welding seam is moderate, and the strength and plasticity of deposited metals are moderate.

Description

technical field [0001] The present invention N relates to a technology in the field of welding materials, in particular to a nickel-based welding rod. Background technique [0002] With the development of industry, nickel-based alloys are used more and more widely. Nickel-based alloys refer to alloys based on nickel (Ni≥50%), containing other alloying elements, and resistant to corrosion in some media. There are mainly nickel, nickel-molybdenum (nickel-molybdenum-iron) alloy, nickel-chromium (nickel-iron) alloy, nickel-chromium-molybdenum and nickel-iron-chromium and so on. For example, nickel-based superalloys mainly used in the manufacture of aero-engine blades and high-temperature parts on rocket engines, nuclear reactors, and energy conversion equipment; nickel-based corrosion-resistant alloys used in the manufacture of various corrosion-resistant parts; through surfacing and spraying It is a nickel-based wear-resistant alloy that is coated on the surface of other base...

Claims

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Application Information

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IPC IPC(8): B23K35/36B23K35/40
Inventor 张宝伟黄连涛郭敬杰
Owner LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS
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