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A flux cored wire

A technology of flux-cored welding wire and flux core, applied in welding equipment, welding medium, welding equipment, etc., can solve the problem that the roll cannot meet the production needs, achieve good plasticity, good process performance and mechanical performance, and overcome the effect of softening phenomenon

Active Publication Date: 2021-10-12
邯郸市永固冶金备件有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the repair and remanufacturing process, the applicability of surfacing welding consumables is very important, which determines the service life of the repaired roll. Conventional repairs generally use 3Cr13, 6Cr13, 25Cr3Mo2MnVA or 30CrMnSi and other welding consumables. Although such welding consumables can be compared The base material increases the rolling capacity by 30-60%, but the repaired rolls often cannot meet the production needs, especially when rolling low-temperature steel or alloy steel with special requirements, due to the high hardness of the rolled material, there is a high impact on the rolling groove. requirements, the above welding consumables cannot meet the production requirements

Method used

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Examples

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Embodiment Construction

[0013] Below in conjunction with embodiment the present invention is described in further detail:

[0014] A flux-cored welding wire, including a sheath and a flux core filled in the sheath, the flux core components include: 4.5-6.5% chromium, 1.2-1.8% molybdenum, 0.8-1.0% nickel, 3.5-4.5% niobium, Manganese 1.5-2.0%, titanium 0.5-0.8%, silicon 1.5-2.0%, and the rest are iron and unavoidable impurities.

[0015] In the embodiment provided by the present invention, the sheath of the flux-cored welding wire is carbon steel, and the outer sheath is made of carbon steel, which has good plasticity and moisture resistance, can avoid work hardening and solve the problem of wire jamming and broken wire during welding, and has good Process performance and mechanical properties.

[0016] Further, the flux core of the flux-cored wire is alloy powder, and the use of alloy powder flux core has good welding quality, no slag, high efficiency, and the alloy composition can be adjusted conven...

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Abstract

The invention discloses a flux-cored welding wire, which belongs to the technical field of flux-cored welding wires. A flux-cored welding wire, including a sheath and a flux core filled in the sheath, the flux core components include: 4.5-6.5% chromium, 1.2-1.8% molybdenum, 0.8-1.0% nickel, 3.5-4.5% niobium, Manganese 1.5-2.0%, titanium 0.5-0.8%, silicon 1.5-2.0%, and the rest are iron and unavoidable impurities. The flux-cored welding wire provided by the invention has wide application range, heat resistance, wear resistance, high hardness and good impact resistance, and can meet the demand for wear-resistant welding wire materials in actual production.

Description

technical field [0001] The invention belongs to the technical field of flux-cored welding wire, and in particular relates to a flux-cored welding wire. Background technique [0002] Using wear-resistant, heat-resistant, impact-resistant surfacing materials, matching suitable submerged arc welding flux, and using submerged arc surfacing technology to repair various decommissioned metallurgical rolls is a very widely used process for roll repair in the world at present. It belongs to the category of green remanufacturing. In particular, the application of the repair of profiled steel pass rolls greatly reduces the cost of rolling steel and saves a large amount of precious metals such as chromium, molybdenum, and vanadium. [0003] In the process of repair and remanufacturing, the applicability of surfacing welding consumables is very important, which determines the service life of the repaired rolls. Conventional repairs generally use 3Cr13, 6Cr13, 25Cr3Mo2MnVA or 30CrMnSi an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/12B23K9/18
CPCB23K9/18B23K35/0266B23K35/3086
Inventor 赵春祥宋洪朝崔莹李燕牛茂文
Owner 邯郸市永固冶金备件有限公司
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