High-strength aluminium alloy plate and production method thereof

An aluminum alloy sheet and production method technology, applied in metal rolling, quenching agent, heat treatment equipment and other directions, can solve the problems of unsatisfactory quality of aluminum alloy sheet, uneven heating of materials, long material time, etc., to achieve rapidity and Continuity, conducive to popularization and application, good welding performance

Active Publication Date: 2010-02-17
河南明晟新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two obvious disadvantages in adopting the quenching method of heating the whole roll into the furnace and then taking the whole coil out of the furnace: one is that the material is heated unevenly during heating, and the other is that the whole time from the out of the furnace to the cooling of the mate

Method used

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  • High-strength aluminium alloy plate and production method thereof
  • High-strength aluminium alloy plate and production method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1. A high-strength aluminum alloy plate and its production method

[0031] 1. The alloy composition of the high-strength aluminum alloy plate is shown in Table 1. The values ​​in the table are expressed in parts by weight. The content of other unavoidable impurities is controlled below 0.01 part, and the balance is aluminum. The total of each component is 100 parts.

[0032] 2. Production steps:

[0033] (1) Melting Put the aluminum ingots for remelting and the Al-Si master alloy together into the melting furnace, melt at 700-750°C for 5-8 hours, stir evenly after melting, add Fe, Cr, Cu metal additives and The magnesium ingots are fully stirred evenly, and samples are taken for spectral analysis to see whether the various components except Ti meet the requirements, and then the contents of Si, Fe, Cu, Mg, and Cr are appropriately adjusted to obtain an aluminum alloy melt whose components meet the requirements;

[0034] (2) Refining and standing still The al...

Embodiment 2

[0045] Embodiment 2, high-strength aluminum alloy plate and production method thereof

[0046] 1. The composition of each alloy is shown in Table 1;

[0047] 2. production method is basically the same with embodiment one, and difference is process parameter:

[0048] (1) Melting Put the aluminum ingot for remelting and the Al-Si master alloy into the melting furnace, and melt at 700°C for 8 hours;

[0049] (2) Refining and standing still Refining the aluminum alloy melt at 720°C for no less than 20 minutes, removing scum, and then standing for 40 minutes; The nitrogen volume in the chlorine mixture accounts for 90% of the total volume;

[0050] (3) Continuously add aluminum titanium boron wire on the casting line to make the content of titanium components meet the requirements; remove hydrogen online, and after hydrogen removal, the hydrogen content in the aluminum melt is below 0.15ml / 100gAl, and then at a temperature of 700°C and a speed of 40mm / The aluminum alloy ingot ...

Embodiment 3

[0057] Embodiment 3, high-strength aluminum alloy plate and its production method

[0058] 1. The composition of each alloy is shown in Table 1;

[0059] 2. production method is basically the same with embodiment one, and difference is process parameter:

[0060] (1) Melting Put the aluminum ingot for remelting and the Al-Si master alloy into the melting furnace, and melt at 750°C for 5 hours;

[0061] (2) Refining and standing still Refining the aluminum alloy melt at 740°C for no less than 20 minutes, removing scum, and then standing for 40 minutes; The nitrogen volume in the chlorine mixture accounts for 88% of the total volume;

[0062] (3) Continuously add aluminum-titanium-boron wire on the casting line to make the content of titanium components meet the requirements; dehydrogenation on-line, after dehydrogenation, the hydrogen content in the aluminum melt is below 0.15ml / 100gAl, and then at a temperature of 710°C and a speed of 45mm / The aluminum alloy ingot was cast...

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Abstract

The invention relates to a high-strength aluminium alloy plate and a production method thereof. The high-strength aluminium alloy plate is made from the components in parts by weight: 0.4-0.8 part ofSi, 0.3-0.6 part of Fe, 0.2-0.3 part of Cu, not more than 0.15 part of Mn, 1.0-1.15 parts of Mg, 0.1-0.3 part of Cr, not more than 0.05 part of Zn, 0.02-0.03 part of Ti, not more than 0.01 part of other impurities and the balance of Al, wherein the total amount is 100 parts. The production method comprises following steps: smelting, refining, stewing, casting, face milling, hot rough rolling, hotprecision rolling, cold rolling and online continuous quenching, wherein furnace temperature is 590-610 DEG C, and the quenching speed is 0.7-2.0m/min; and then carrying out secondary cold rolling till a aluminium alloy platen is rolled to be 0.8-10mm; and finally obtaining a finished product through finishing and artificial ageing treatment. The plate has the advantages of high strength, corrosion resistance, good welding performance and the like; the adopted hot rolling method is a continuous quenching process, thereby realizing the rapidity and the continuity of uncoiling quenching and shortening the production cycle, therefore being beneficial to energy saving and consumption reducing and popularization and application.

Description

1. Technical field: [0001] The invention relates to an aluminum alloy plate, in particular to a high-strength aluminum alloy plate and a production method thereof. 2. Background technology: [0002] With the advancement of science and technology, the application of aluminum alloy plates is becoming more and more widespread. 6061 aluminum alloy is widely used in aviation, aerospace, shipbuilding, mechanical equipment, mold manufacturing, Electronic and electrical, hardware products and handicrafts and other industries. [0003] The current 6-series aluminum alloy processing and production cycle in China is long. The quenching furnace used in production is to put the material coil into the furnace as a whole. Not too big, the material roll is still in the furnace, and there is no roller table in the furnace. There are two obvious disadvantages in adopting this quenching method that the whole roll is heated and then rolled out of the furnace: one is that the material is not h...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/03C22C1/06C22F1/047C21D1/18C21D1/60B21B1/22
Inventor 邵亚军余克斌
Owner 河南明晟新材料科技有限公司
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