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Al-Mn-Mg-Cu-Ni-Ce alloy and manufacturing method thereof

A technology of al-mn-mg-cu-ni-ce and manufacturing method, which is applied in the field of new aluminum alloy materials, can solve the problems that the strength and high temperature tensile strength cannot fully meet the requirements and limitations, and shorten the waiting time for starting up and warming up , reduced tube wall thickness, and excellent thermal fatigue properties

Active Publication Date: 2009-03-18
GUANGDONG HOSHION IND ALUMINUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the development of thinner and lighter fixing rollers from the perspective of energy saving in recent years, the strength of Al-Mn-Mg antirust aluminum alloys, especially the high-temperature tensile strength, still cannot fully meet the requirements, which has become a limiting Al-Mn-Mg One of the reasons why anti-rust aluminum alloys are widely used

Method used

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  • Al-Mn-Mg-Cu-Ni-Ce alloy and manufacturing method thereof
  • Al-Mn-Mg-Cu-Ni-Ce alloy and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: Add 9712 kilograms of industrial pure aluminum (99.97%) and 1050 kilograms of Al-10% Mn, 102 kilograms of Al-50% Cu, 400 kilograms of Al- 10% Ni and 30 kg Al-10% Ce master alloy, and at the same time add covering agent to cover, the main components of covering agent are KCl, NaCl, Na 3 AlF 6 Wait, continue to heat up to 750 ° C until it melts, press 89 kg of Mg into the bottom of the molten pool with a bell jar to make it completely melted, then take out the bell jar, stir fully, and use active flux-inert argon jet refining technology for two times Degassing and impurity removal treatment, the main components of the active flux are KCl, NaCl, CaF 2 、Na 3 AlF 6 、Na 2 SiF 6 etc., the purity of argon gas is 99.999%, and then stand still for 20 minutes to remove slag, and when the temperature is 730 ° C, the alloy melt is cast into a cast rod with a diameter of 108 mm by semi-continuous water-cooled casting.

[0024] Alloy cast rods are cut into 350mm lo...

Embodiment 2

[0026] Embodiment 2: only change the batching amount of alloy, other is the same as embodiment 1. The ingredients are 9789 kg of industrial pure aluminum (99.97%), 820 kg of Al-10% Mn, 82 kg of Al-50% Cu, 230 kg of Al-10% Ni and 23 Al-10% Ce master alloy, and 63 kg of Mg.

Embodiment 3

[0027] Embodiment 3: only change the batching amount of alloy, other is the same as embodiment 1. The batching amount is, adopt 9613 kilograms of industrial pure aluminum (99.97%) and 1280 kilograms of Al-10% Mn, 136 kilograms of Al-50% Cu, 690 kilograms of Al-10% Ni and 48 kilograms of Al-10% Ce master alloy, 117 kg Mg.

[0028] The chemical composition and room temperature mechanical properties of the alloy of the present invention are shown in Table 1 and Table 2 respectively in Alloy B, Alloy C, and Alloy D, and the thermal stability and thermal fatigue performance of the alloy are shown in Table 3 and Table 4, Table 1 and Table 2 respectively. The reference alloy (Alloy A) in is an Al-Mn-Mg alloy without Cu, Ni and Ce.

[0029] As can be seen from Table 2, the Al-Mn-Mg-Cu-Ni-Ce alloy (alloy B, alloy C, alloy D) provided by the present invention is more than the Al-Mn-Mg reference that does not contain Cu, Ni and Ce Alloy (alloy A) not only the tensile strength σ b and ...

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Abstract

The invention relates to a novel aluminum alloy material, in particular to an aluminum-manganese-magnesium base alloy containing copper, nickel and cerium. The compositions in weight percentage of the aluminum-manganese-magnesium-copper-nickel-cerium alloy are 0.4 to 0.7 percent of copper, 0.2 to 0.7 percent of nickel, 0.02 to 0.05 percent of cerium, 0.8 to 1.3 percent of manganese, 0.6 to 1.2 percent of magnesium, and the balance being aluminum and inevitable impurity elements. The aluminum-manganese-magnesium-copper-nickel-cerium alloy has the advantages that the alloy can simultaneously have high strength and good thermal stability, thermal fatigue property and fluidity, and is suitable for manufacturing thin-wall pipe fittings after adoption of multicomponents of the copper, the nickel and the cerium for composite microalloying on the basis of the aluminum-manganese-magnesium base alloy. The invention also provides a method for manufacturing the aluminum-manganese-magnesium-copper-nickel-cerium alloy.

Description

technical field [0001] The invention relates to a novel aluminum alloy material, in particular to an Al-Mn-Mg base alloy containing Cu, Ni and Ce and a manufacturing method thereof. Background technique [0002] The fixing rollers used in laser printers and copiers require light weight, non-magnetic properties, excellent thermal conductivity, heat resistance and corrosion resistance, etc. Therefore, the fixing rollers are usually made of antirust aluminum alloys that cannot be strengthened by heat treatment. The working temperature of the fixing roller generally does not exceed 200°C, and it works alternately between hot and cold. Therefore, the aluminum alloy used to make the fixing roller is required not only to have sufficient strength in the annealed state, but also to have excellent thermal stability and thermal fatigue performance. At home and abroad, Al-Mg anti-rust aluminum alloy 5052 or 5056 alloy has been mostly used to manufacture fixing rollers. However, since th...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/03B22D21/04C22F1/04
Inventor 李建湘
Owner GUANGDONG HOSHION IND ALUMINUM CO LTD
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