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Stainless steel flux-cored wire

A flux-cored wire, stainless steel technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of poor corrosion resistance, poor high temperature resistance of stainless steel flux-cored welding wire, etc., to reduce harm and achieve excellent welding process. performance, excellent wear resistance

Active Publication Date: 2021-04-13
山东聚力焊接材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies and defects in the prior art, the present invention provides a stainless steel flux-cored welding wire. The deposited metal after welding has good high temperature resistance and corrosion resistance, and the welding arc is soft and stable, with less spatter, and the weld seam is formed Beautiful, stable wire feeding, excellent welding process performance, can be used to solve the problems of poor high temperature resistance and poor corrosion resistance of stainless steel flux-cored welding seams

Method used

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preparation example Construction

[0033] See attached figure 1 , the preparation method of the stainless steel flux-cored welding wire of the present invention comprises the following steps:

[0034] S1, prepare medicine core powder according to the mass percentage of above-mentioned each component;

[0035] S2, rolling the stainless steel strip into a U shape, and then adding the core powder to the U shape groove;

[0036] S3. Close the U-shaped groove, wrap the core powder in it, draw and reduce the diameter one by one through the wire drawing machine, so that the diameter reaches the diameter of the prepared stainless steel flux cored wire.

[0037] Wherein, each component in step S1 is in powder form, and the particle size of each component is 60-80 mesh. When batching, each component is sieved through a 60-mesh, 70-mesh or 80-mesh sieve.

[0038] In step S2, the stainless steel strip is SUS340 stainless steel, the specification of which is 0.3*10 mm in thickness*width, and the filling amount of the flux...

Embodiment 1

[0042] In this embodiment, the stainless steel flux-cored welding wire includes a SUS430 stainless steel strip and a flux core, and the flux core is filled in the SUS430 stainless steel strip. Among them, the mass percentages of the components in the drug core are as follows: 0.7% fluoride, 0.8% potassium sodium arc stabilizer, 0.3% graphene, 2% manganese-silicon alloy, 5% chromium powder, 2% ferrosilicon, 9% ferrotitanium, The balance is iron powder, the total mass percentage of each component is 100%, and the filling amount of the flux core is 18% of the total weight of the stainless steel flux cored wire.

Embodiment 2

[0044] In this embodiment, the stainless steel flux-cored welding wire includes a SUS430 stainless steel strip and a flux core, and the flux core is filled in the SUS430 stainless steel strip. Among them, the mass percentages of the components in the drug core are as follows: 1.1% fluoride, 1.1% potassium sodium arc stabilizer, 0.6% graphene, 3% manganese-silicon alloy, 7% chromium powder, 5% ferrosilicon, 12% ferrosilicon, The balance is iron powder, the total mass percentage of each component is 100%, and the filling amount of the flux core is 20% of the total weight of the stainless steel flux cored wire.

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Abstract

The invention provides a stainless steel flux-cored wire. The stainless steel flux-cored wire comprises a stainless steel strip and a flux core, and the stainless steel strip is filled with the flux core. The flux core comprises, by mass, 0.7-1.4% of fluoride, 0.8-1.5% of a potassium-sodium arc stabilizer, 0.3-0.8% of graphene, 2-3% of manganese-silicon alloy, 5-10% of chromium powder, 2-5% of silicon iron, 9-14% of ferrotitanium and the balance iron powder. When the stainless steel flux-cored wire is used for welding, electric arcs are soft and stable, weld joints are attractive in appearance and small in splashing after welding, small air holes do not exist in the weld joints, and meanwhile weld joint metal has excellent abrasion resistance, corrosion resistance and high-temperature resistance.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to a stainless steel flux-cored welding wire. Background technique [0002] Stainless steel has been widely used in various parts of automobiles. Among them, the amount of stainless steel used in automobile exhaust systems accounts for more than half of the total amount of stainless steel used in automobiles. With the improvement of automobile engine performance and stricter exhaust regulations, the temperature of the gas discharged from the engine is getting higher and higher. Therefore, the automotive industry requires components of the exhaust system to have excellent heat resistance and corrosion resistance, while also requiring as little weight as possible. The application of stainless steel meets the needs of this development. The wide application of stainless steel has driven the development of stainless steel welding materials, especially the development of stainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/308B23K35/406
Inventor 冯素英程付朋许慧敏
Owner 山东聚力焊接材料有限公司
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