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High magnesium-manganese-chromium-cobalt-aluminum alloy for manufacturing welding wires and preparation method thereof

A high-magnesium-manganese-chromium-cobalt-aluminum alloy and welding wire technology, which can be used in manufacturing tools, welding equipment, metal processing equipment, etc. Mechanical properties, effect of grain refinement

Active Publication Date: 2019-05-10
NINGBO BODE HIGHTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the specification of the mother bar after hot rolling in this process is Φ9.5mm, while the commonly used welding wire specification is Φ1.2mm. Large-diameter casting wheels require a large investment in equipment for the entire product line

Method used

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  • High magnesium-manganese-chromium-cobalt-aluminum alloy for manufacturing welding wires and preparation method thereof
  • High magnesium-manganese-chromium-cobalt-aluminum alloy for manufacturing welding wires and preparation method thereof
  • High magnesium-manganese-chromium-cobalt-aluminum alloy for manufacturing welding wires and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] The chemical composition of the high-magnesium-manganese-chromium-cobalt aluminum alloy welding wire of the present invention is calculated by mass percentage: Mg: 4.5%, Mn: 0.85%, Cr: 1.2%, Zr: 0.12%, Co: 0.1%, Ti: 0.0025 %, B: 0.008%, Si: 0.005%, the sum of other impurity elements is less than 0.5%, and the balance is Al.

[0092] Using industrial pure aluminum, industrial pure magnesium and Al-Mn, Al-Cr, Al-Co and other intermediate alloys as raw materials, 6 tons of alloys are prepared according to the chemical composition requirements, and high magnesium manganese chromium cobalt aluminum alloy welding wire is prepared according to the following process Wire:

[0093] (1) The industrial pure aluminum, industrial pure magnesium and Al-Mn, Al-Cr, Al-Zr, Al-Co, Al-Ti master alloys are melted in the melting furnace 1'according to the formula ratio, and the melting temperature is 770 ℃, after the alloy is melted, it is transferred to the holding furnace 2'for composition ad...

Embodiment 2

[0100] The chemical composition of a high-magnesium-manganese-chromium-cobalt aluminum alloy welding wire according to the present invention is calculated by mass percentage: Mg: 5%, Mn: 0.7%, Cr: 0.8%, Zr: 0.08%, Co: 0.05%, Ti: 0.0015 %, V: 0.006%, Nb: 0.005%, the sum of other impurity elements is less than 0.5%, and the balance is Al.

[0101] Using industrial pure aluminum, industrial pure magnesium and Al-Mn, Al-Cr, Al-Co and other intermediate alloys as raw materials, 6 tons of alloys are prepared according to the chemical composition requirements, and high magnesium manganese chromium cobalt aluminum alloy welding wire is prepared according to the following process Wire:

[0102] (1) Industrial pure aluminum, industrial pure magnesium and Al-Mn, Al-Cr, Al-Zr, Al-Co, Al-Ti, Al-V master alloys are melted in a melting furnace according to a certain proportion, and melted After the alloy is melted at a temperature of 750°C, it is transferred to the holding furnace 2'for composit...

Embodiment 3

[0108] The chemical composition of a high-magnesium-manganese-chromium-cobalt aluminum alloy welding wire of the present invention is calculated by mass percentage: Mg: 5.5%, Mn: 0.5%, Cr: 0.4%, Zr: 0.04%, Co: 0.05%, V: 0.005 %, Ag: 0.0015%, Cu: 0.0008%, the sum of other impurity elements is less than 0.5%, and the balance is Al.

[0109] (1) Put industrial pure aluminum, industrial pure magnesium and Al-Mn, Al-Cr, Al-Zr, Al-Co, Al-V, Al-Ag and Al-Cu master alloys in a certain proportion in the melting furnace The melting is carried out at a melting temperature of 750°C. After the alloy is melted, chlorine is used for refining, and the slag is removed after refining.

[0110] Release the processed aluminum alloy melt and transfer it to the degassing box for degassing. Use 99.998% N for degassing 2 After degassing, the hydrogen content of the melt does not exceed 0.19ml / 100gAl; then the degassed melt is transferred to the filter box for filtration, and the filtration accuracy is 35p...

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Abstract

The invention discloses a high magnesium-manganese-chromium-cobalt-aluminum alloy for manufacturing welding wires and a preparation method thereof. The the alloy is characterized by comprising the following components of, in percentage by weight, 4.5-7.5 wt% of magnesium, 0.0005-0.85 wt% of manganese, 0.1-1.0 wt% of chromium, 0.01-0.10 wt% of zirconium, 0.005-0.1 wt% of cobalt, 0.0005-0.01 wt% oftrace elements W1, 0.0001-0.01wt% of trace elements W2, less than 0.001 wt% of any one element in Li, Na, K, Ca, Rb, and Cs, the balance aluminum and inevitable impurity elements. A blank rod is manufactured by adopting a continuous casting continuous rolling process for the high magnesium-manganese-chromium-cobalt-aluminum alloy, multi-pass plastic processing, stepped annealing, peeling, and split-packaging process are carried out to manufacture a finished product, the manufactured finished product is little in splashing during welding, the performance is stable, the strength of the weld joint is improved, the cost is appropriate, and the method has a wide market application prospect.

Description

Technical field [0001] The invention relates to a high-magnesium-manganese-chromium-cobalt aluminum alloy used for manufacturing welding wire and a preparation method thereof, and is particularly suitable for aluminum alloy welding wire for inert gas shielded arc welding. Background technique [0002] As my country's economy is in a critical period of transforming old and new kinetic energy, and today with increasing international competition, aluminum and aluminum-based alloys, as an important basic raw material, play a particularly important role. Aluminum and aluminum-based alloy processing materials are usually widely used in the fields of electricity, transportation, construction, machinery, electronic information, aerospace, defense and military industry in the form of tubes, rods, wires, plates, strips, and foils. And social development and other aspects. [0003] In recent years, as the pace of optimization and upgrading of my country’s industrial structure has been accele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/28B23K35/40
Inventor 孟宪旗余惺万林辉方秀容窦思忠刘海琳陈斌杰雷金平范江龙
Owner NINGBO BODE HIGHTECH CO LTD
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