High-manganese aluminum bronze automatic submerged arc welding surfacing method

A submerged arc automatic welding, high manganese aluminum bronze technology, applied in arc welding equipment, welding medium, welding equipment and other directions, can solve the problems of slag inclusion, unfusion and cracking in the welding seam, so as to reduce the cost of the enterprise and improve the welding quality , the effect of good mechanical properties

Inactive Publication Date: 2013-04-24
武汉星河重冶重工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-manganese-aluminum-bronze submerged-arc automatic welding surfacing method to solve defects such as weld slag inclusions, pores, lack of fusion and cracking that are easy to occur during the surfacing process of copper and steel dissimilar metals in the prior art, and improve Welding quality and product performance

Method used

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  • High-manganese aluminum bronze automatic submerged arc welding surfacing method
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  • High-manganese aluminum bronze automatic submerged arc welding surfacing method

Examples

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Embodiment 1

[0017] Example 1: Calculate the components according to the ratio of the present invention. The composition of the welding wire is (Wt%): Mn11%, AL7.5%, Fe2%, Ni1%, Si1%, and the balance is Cu. The chemical composition of the flux is (Wt%): CaF 2 40%,MnO6%,TiO 2 7%, CaCl 2 22%, CaO12%, MgO8%, SiO 2 5%.

[0018] see figure 1 , 2 , 3. The high manganese aluminum bronze submerged arc automatic welding surfacing method has the following steps: A. Preparation before welding: use the welding wire with the above composition, the diameter is φ1.6mm, and the flux is the flux with the above composition. Preheat the base metal 1 before surfacing, and the base metal 1 is domestic Q460E low-alloy high-strength structural steel. The preheating temperature is 300°C; the welding wire and flux should be dried at 250°C; the flux should be kept at 100°C for 30 minutes for later use. The moisture, grease, impurities and metal oxide film on the surfacing welding surface of the base metal 1...

Embodiment 2

[0022] Example 2: Calculate the components according to the ratio of the present invention. The composition of the welding wire is (Wt%): Mn12%, AL7%, Fe5%, Ni2.1%, Si1%, and the balance is Cu. The chemical composition of the flux is (Wt%): CaF 2 35%,MnO 5%,TiO 2 6%, CaCl 2 25%, CaO13%, MgO9%, SiO 2 7%.

[0023] see figure 1 , 2 , 3. The high manganese aluminum bronze submerged arc automatic welding surfacing method has the following steps: A. Preparation before welding: use the welding wire with the above composition, the diameter is φ1.6mm, and the flux is the flux with the above composition. Preheat the base metal 1 before surfacing, and the base metal is domestic Q460E low-alloy high-strength structural steel. The preheating temperature is 275°C; the welding wire and flux should be dried at 225°C; the flux should be kept at 100°C for 30 minutes for later use. The moisture, grease, impurities and metal oxide film on the surfacing welding surface of the base metal 1 ...

Embodiment 3

[0028] Example 3: Calculate the components according to the ratio of the present invention. The composition of the welding wire is (Wt%): Mn13%, AL5%, Fe6%, Ni2.5%, Si1%, and the balance is Cu. The chemical composition of the flux is (Wt%): CaF 2 30%,MnO8%,TiO 2 4%, CaCl 2 26%, CaO15%, MgO10%, SiO 2 7%.

[0029] see figure 1 , 2 , 3. The high manganese aluminum bronze submerged arc automatic welding surfacing method has the following steps: A. Preparation before welding: use the welding wire with the above composition, the diameter is φ1.6mm, and the flux is the flux with the above composition. Preheat the base metal 1 before surfacing, and the base metal is domestic Q460E low-alloy high-strength structural steel. The preheating temperature is 250°C; the welding wire and flux should be dried at 200°C; the flux should be kept at 100°C for 30 minutes for later use. The moisture, grease, impurities and metal oxide film on the surfacing welding surface of the base metal 1...

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Abstract

A high-manganese aluminum bronze automatic submerged arc welding surfacing method includes the following steps: A, preparation before surfacing; B, surfacing; and C, processing after the surfacing. According to the surfacing method, poor phenomena such as slag inclusions in surfacing welded seams, pores, incomplete fusion, cracking are reduced, the welding quality is improved, and enterprise costs are reduced. Welding wires and fluxes are particularly suitable for surfacing of copper and steel, stable and reasonable weld metal fusion ratio, and good welding manufacturability, crack resistance, corrosion resistance and pore resistance are provided, and good mechanical properties are provided simultaneously. The method lays a technological application foundation for production of heavy metallurgy equipment such as cold (hot) rolling mills, so that the high-manganese aluminum bronze technological level in our country reaches technological manufacturing levels of like products in industrially developed countries abroad, and good market prospects are provided.

Description

technical field [0001] The invention relates to a high manganese aluminum bronze surfacing method, in particular to a high manganese aluminum bronze submerged arc automatic welding surfacing method. Background technique [0002] SIEMENS. VAI Siemens VAI designed the clamping pin on the fixed side of the segment. The original design adopted the German standard. The base material DINEN10028 standard code is S460ML, which is a fine-grain weldable structural steel, and the surfacing material is DINI1733 standard code. It is SG-CuMn13AP7 (TASK WELDING SILOXR4M), which is a high manganese aluminum bronze surfacing material. According to the comparative analysis of material element composition, the corresponding domestic base material is Q460E, which is a low-alloy high-strength structural steel, and its chemical composition is C≤0.2%, Mn 1.00-1.70%, Si 0.55%, P≤0.025% , S≤0.025%, Cr 0.7%, Ni 0.7%, V 0.02~0.20%, Nb 0.02~0.20%, Ti 0.02~0.20%, AL≥0.015%, and the balance is Fe. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/04B23K9/235B23K35/30B23K35/362
Inventor 易启利
Owner 武汉星河重冶重工科技有限公司
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