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Al-Mn alloy and production method thereof

An aluminum-manganese alloy and production method technology, applied in the field of aluminum alloys, can solve the problems of high price of rare earth elements samarium and samarium, limited improvement of alloy performance, limited effect of improving strength, etc., to achieve effective pinning effect, increase particle size, and reduce cost. low effect

Active Publication Date: 2021-03-23
YONGJIE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, by adding a certain amount of zirconium to the aluminum-manganese alloy, the use of finely dispersed Al 3 The inhibition effect of Zr relative to recrystallization retains the deformed structure of the alloy, thereby improving the strength of the alloy, but the effect of improving the strength is limited; there are also rare earth elements yttrium and samarium added to improve the strength of the alloy
However, due to the high price of rare earth elements samarium and samarium, it is difficult to realize the application, and the improvement of the performance of the alloy is also limited

Method used

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  • Al-Mn alloy and production method thereof
  • Al-Mn alloy and production method thereof
  • Al-Mn alloy and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The present embodiment provides a kind of production method of aluminum-manganese alloy, and this production comprises the following steps:

[0036] Step S1, ingredients: Al-Mn alloy raw materials are formulated according to the following components and mass percentages: 0.16% silicon, 0.23% iron, 1.65% manganese, 0.32% copper, 0.15% zirconium, 0.36% cerium; 0.16% lanthanum, and the balance is Aluminum and unavoidable impurities.

[0037] In this embodiment, the silicon-controlled content is strictly controlled not to exceed 0.2%, because excessive silicon will combine with cerium and lanthanum to form a larger particle size of the second phase, such as the attached figure 2 shown, with figure 2 It is the scanning photo and energy spectrum analysis results of the second phase particles of the alloy sheet containing more than 0.2% silicon: (a) the scanning photo of the second phase particles; (b) the picture shows the results of energy spectrum analysis of the rare ea...

Embodiment 2

[0046] The production method in the second embodiment is roughly the same as that in the first embodiment, except that when step S1 is carried out, the mass percentages of the components in the aluminum-manganese alloy raw material can also be: 0.13% silicon, 0.33% iron, manganese 1.38%, copper 0.58%, zirconium 0.23%, cerium 0.26%; lanthanum 0.24%, the balance is aluminum and unavoidable impurities.

[0047] The mass percent of each component in the aluminum-manganese alloy produced in Example 2 is: silicon<0.2%, iron<0.5%, manganese 1.0%-1.8%, copper 0.3%-0.9%, zirconium 0.1%-0.3% , cerium 0.05%-0.4%; lanthanum 0.1%-0.4%, the balance is aluminum and unavoidable impurities. And the aluminum-manganese alloy can be used in heat exchange devices, especially brazing thin plates or fins or the core material of brazing composite aluminum materials, the yield strength after brazing is higher than other alloys, and has good room temperature strength and high temperature resistance. ...

Embodiment 3

[0049] The production method in the third embodiment is roughly the same as that in the first embodiment, except that, when step S1 is carried out, the mass percentages of the components in the aluminum-manganese alloy raw material can also be: 0.11% silicon, 0.43% iron, manganese 1.15%, copper 0.84%, zirconium 0.28%, cerium 0.18%; lanthanum 0.35%, the balance is aluminum and unavoidable impurities.

[0050] The mass percent of each component in the aluminum-manganese alloy produced in Example 3 is: silicon<0.2%, iron<0.5%, manganese 1.0%-1.8%, copper 0.3%-0.9%, zirconium 0.1%-0.3% , cerium 0.05%-0.4%; lanthanum 0.1%-0.4%, the balance is aluminum and unavoidable impurities. And the aluminum-manganese alloy can be used in heat exchange devices, especially brazing thin plates or fins or the core material of brazing composite aluminum materials, the yield strength after brazing is higher than other alloys, and has good room temperature strength and high temperature resistance. ...

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Abstract

The invention provides an aluminum-manganese alloy and a production method thereof. The aluminum-manganese alloy comprises the components of, in percentage by mass, less than 0.2 % of silicon, less than 0.5 % of iron, 1.0 %-1.8 % of manganese, 0.3 %-0.9 % of copper, 0.1 %-0.3 % of zirconium, 0.05 %-0.4 % of cerium, 0.1 %-0.4 % of lanthanum and the balance aluminum and inevitable impurities. The production method of the alloy comprises the following steps that proportioning is carried out; smelting and refining are carried out to obtain an aluminum-manganese alloy melt; casting is carried out on the aluminum-manganese alloy melt to form an aluminum-manganese alloy ingot; and surface milling, hot rolling, cold rolling and finished product annealing treatment are carried out on the aluminum-manganese alloy ingot to obtain aluminum-manganese alloy sheet strips with different thicknesses. Compared with the prior art, the aluminum-manganese alloy prepared through the production method is high in strength, resistant to high temperature and low in cost.

Description

【Technical field】 [0001] The invention relates to the technical field of aluminum alloys, in particular to an aluminum-manganese alloy and a production method thereof. 【Background technique】 [0002] Aluminum alloy materials have the characteristics of good thermal conductivity, low density, excellent machinability and welding performance, high corrosion resistance, low cost and recyclability, so they gradually replace copper alloys and are widely used in various heat exchange devices . However, heat exchange devices will face problems such as high service temperature, high pressure, and long working hours during their service, such as intercoolers on automobiles and various construction machinery equipment, which requires the materials used to manufacture heat exchange devices to have high Strength also requires good high temperature resistance. [0003] In the related art, aluminum alloys used in heat exchange devices are generally used in the form of core materials to m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/02C22F1/04
CPCC22C1/026C22C21/00C22F1/04
Inventor 曹城陈登斌宋盼周然贺有为习羽万泽全
Owner YONGJIE NEW MATERIAL CO LTD
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