Micro-smoke environment-friendly carbon steel flux-cored wire

A flux-cored welding wire, an environmentally friendly technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of large amount of smoke and dust, environmental pollution, health hazards of workers, etc., achieve sufficient combustion and reduce environmental pollution Pollution and the effect of reducing the amount of smoke and dust generated

Pending Publication Date: 2022-03-01
FARINA JINAN WELDTEC & MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a new type of low-smoke environment-friendly carbon steel flux-cored welding wire for the problems that the tra

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This embodiment provides a new type of flux-cored welding wire whose amount of smoke and dust is obviously better than that of traditional flux-cored welding wire.

[0017] The welding wire is made of low-carbon steel strip HS1, which is wrapped with various alloy powders and mineral powders as the core, and processed according to a certain filling ratio of 13-17%.

[0018] Concrete content medicinal powder is composed as follows by mass percentage,

[0019] Rutile: 34%, wollastonite: 11%, low-carbon ferromanganese: 13%, silicate: 3.5%, iron boride powder: 0.9%, zircon: 4%, Ni: 4.5%, ferro-titanium 1.62 %, and the rest is iron powder.

[0020] First, wollastonite, iron boride, silicate, low-carbon ferromanganese, zircon, and ferro-titanium are taken as 80% of the normal addition amount, heated to a molten state at 2800-3000°C, and then produced by atomization into composite additive particles, and then mixed with rutile, rare earth fluoride, nickel powder and other re...

Embodiment 2

[0023] The parts of this embodiment that are not specifically described are consistent with Embodiment 1. Concrete content medicated powder is composed as follows by mass percentage in the present embodiment,

[0024] Rutile: 30%, wollastonite: 13%, low-carbon ferromanganese: 11%, silicate: 5%, iron boride powder: 1.2%, zircon: 8%, Ni: 6%, titanium iron 2 %, and the rest is iron powder.

[0025] First, wollastonite, iron boride, silicate, low-carbon ferromanganese, zircon, and ferro-titanium are taken as 90% of the normal addition amount, heated to a molten state at 3000°C, and then made into a composite by atomization. Additive particles are mixed with rutile, rare earth fluoride, nickel powder and other unatomized powder evenly, and processed according to the filling ratio of 17%.

Embodiment 3

[0027] The parts of this embodiment that are not specifically described are consistent with Embodiment 1. Concrete content medicated powder is composed as follows by mass percentage in the present embodiment,

[0028] Rutile: 34.5%, wollastonite: 12.8%, low-carbon ferromanganese: 11.9%, silicate: 4.2%, iron boride powder: 0.98%, zircon: 5.7%, Ni: 3.6%, titanium iron 1.1 %, and the rest is iron powder.

[0029] First, wollastonite, iron boride, silicate, low-carbon ferromanganese, zircon, and ferro-titanium are taken as 90% of the normal addition amount, heated to a molten state at 3000°C, and then made into a composite by atomization. Additive granules are mixed evenly with rutile, rare earth fluoride, nickel powder and other unatomized powders, and processed according to the filling ratio of 16%.

[0030] Effect verification

[0031] 1. Smoke and dust detection

[0032] Taking the 1.2-diameter welding wire prepared in Example 1 as an example, in flat butt welding with a c...

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Abstract

The invention belongs to the technical field of carbon steel flux-cored wires, and relates to a micro-smoke environment-friendly carbon steel flux-cored wire. The welding wire powder is prepared from, by weight, 30%-35% of rutile, 11%-13% of wollastonite, 11%-13% of low-carbon ferromanganese, 1%-5% of silicate, 0.3%-1.2% of iron boride powder, 3%-8% of zirconite, 3%-6% of nickel, 0.5%-2% of ferrotitanium and the balance iron powder. According to the method, part of raw materials are melted and atomized to form a composite material, then the composite material is mixed with other materials to prepare welding wire powder, and more than 80% of low-melting-point harmful impurities (such as S, P and compounds thereof) are removed in the powder preparation process. And the burning loss of alloy elements is reduced, and the deposition performance of weld metal is facilitated. According to the welding wire prepared through the method, the droplet transition period of the welding wire can be prolonged, the metallurgical reaction behavior is intensified, combustion of powder is more sufficient, the smoke dust generation amount is reduced, and environmental pollution and harm to the body of a welder are reduced.

Description

technical field [0001] The invention belongs to the technical field of carbon steel flux-cored welding wire, and relates to a low-smoke environment-friendly carbon steel flux-cored welding wire. Background technique [0002] Since the traditional carbon steel flux-cored welding wire must be added with various alloy powders such as slagging agent, arc stabilizing agent, deoxidizer, and combustion accelerant during the manufacturing process, a large amount of smoke and dust will be generated in the welding wire when the workers are working on the welding wire. . According to statistics, the amount of welding wire fume generated during welding is 7-10 g / kg welding wire. In addition to causing environmental pollution, welding fume also has an impact on the health of welders, which can easily lead to many occupational diseases such as: lung cancer, manganese poisoning, and electro-optic ophthalmia. Inflammation, skin allergies, skin cancer, respiratory infections, etc. At prese...

Claims

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Application Information

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IPC IPC(8): B23K35/12B23K35/30
CPCB23K35/0266B23K35/3053
Inventor 李长鑫王本胜
Owner FARINA JINAN WELDTEC & MACHINERY
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