Aluminum alloy sheet and production method thereof

A production method and an aluminum alloy technology are applied to the 6016 series aluminum alloy sheet for automobile body and the production field thereof to achieve the effects of eliminating poor paint hardening, reducing costs and achieving significant economic benefits.

Inactive Publication Date: 2016-09-07
SHANDONG NANSHAN ALUMINUM +1
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But this kind of plate can only be used as the inner

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  • Aluminum alloy sheet and production method thereof
  • Aluminum alloy sheet and production method thereof
  • Aluminum alloy sheet and production method thereof

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[0024] The present invention discloses an aluminum alloy sheet, the chemical composition and mass percentage of which are: Si 1.0~1.1%, Fe0.16~0.22%, Cu 0.12~0.16%, Mn 0.08~0.12%, Mg 0.45~0.45%, Cr 0~0.10%, Zn0~0.10%, Ti 0~0.10%, the balance is Al. . The production method of the present invention includes: batching → smelting → converter → furnace side refining → standing → casting → sawing → milling → ingot homogenization treatment → hot rolling → intermediate annealing → cold rolling → electric spark texturing treatment → cold Rolled product → solution quenching → tension straightening (permanent deformation rate) → Ti / Zr passivation → pre-ageing → finished coil.

[0025] The present invention will be further described below in conjunction with some specific embodiments.

[0026] A 6016 alloy sheet for automobile body, its chemical composition and mass percentage are shown in Table 1.

[0027] Table 1 Measured value of the alloy composition (wt%)

[0028]

[0029] One of the prod...

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Abstract

The invention discloses a 6016-series aluminum alloy sheet for a vehicle body and a production method thereof. The aluminum alloy sheet comprises the following chemical components in percentage by mass: 1.0-1.5% of Si, 0-0.50% of Fe, 0-0.20% of Cu, 0-0.20% of Mn, 0.25-0.60% of Mg, 0-0.10% of Cr, 0-0.10% of Zn, 0-0.10% of Ti, and the balance of Al. The production method comprises the steps of batching-smelting-converter-furnace side refining-standing-casting-sawing-surface milling-ingot homogenization-hot rolling-intermediate annealing-cold rolling-electrospark frosting-finished product cold rolling-solid solution quenching-drawing correction-Ti/Zr passivation-preageing-finished product coiling. The aluminum alloy sheet can provide a high-grade vehicle body sheet to users, improves the yield in punching, reduces the vehicle manufacturer cost, improves the formability and the baking hardness of aluminum alloy sheets, and is broad in market prospect and prominent in economic benefit.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy plate production, and in particular relates to a 6016 series aluminum alloy thin plate for automobile bodies and a production method thereof. Background technique [0002] Energy saving, emission reduction and vehicle lightweight have become global trends. After decades of research and development of automotive lightweight materials, people gradually believe that 6016 (Al-Mg-Si series) alloy is the best aluminum alloy material for automotive body panels. It not only has comprehensive mechanical properties and formability, but also can be strengthened by heat treatment, and its bake hardening (BH) performance is better than that of other aluminum alloys. As an automobile outer panel, it must have the dent resistance, formability, aging stability, surface gloss and grill hardening performance of alloy materials. [0003] A production method described in CN104561681A 6016 aluminum alloy thin...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02C22F1/043
CPCC22C21/02C22C1/026C22F1/043
Inventor 吕正风张华孟凡林孙学明陶志民曹零勇房洪杰盛光英辛涛
Owner SHANDONG NANSHAN ALUMINUM
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