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Novel 4017 aluminum alloy sheet for coating material and preparation method thereof

An aluminum alloy and coating technology, applied in the field of aluminum alloy manufacturing, can solve problems such as poor fluidity and technical difficulty, achieve the effects of thorough slag removal, increase recycling efficiency, and solve the emission of harmful gas substances

Active Publication Date: 2022-08-02
HENAN MINGTAI AL INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the casting and rolling process is used to produce blanks for cold rolling, finishing, and final products. The technical difficulty is relatively large. Casting and rolling cracks, slag hanging, grain bands, small white stripes, horizontal lines, and even edge missing due to poor fluidity , hot zone, sticky edge and other casting and rolling production defects

Method used

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  • Novel 4017 aluminum alloy sheet for coating material and preparation method thereof
  • Novel 4017 aluminum alloy sheet for coating material and preparation method thereof
  • Novel 4017 aluminum alloy sheet for coating material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] In terms of mass percentage, the alloy chemical composition of the 4017 aluminum alloy sheet for the new coating material of this embodiment is: Si 1.4%, Fe 0.55%, Cu 0.17%, Mn 1.15%, Mg 0.45%, Cr 0.05% , Zn 0.1%, Ti 0.035%, and the balance is Al.

Embodiment 2

[0051] The preparation method of 4017 aluminum alloy sheet for coating material of embodiment 1, the steps are as follows:

[0052] a. Smelting: Add the raw material pure aluminum ingots and process wastes into the flame reverberatory furnace for heating and smelting, and control the melting temperature in the furnace to be 735-750 ° C. After all the raw materials in the furnace are melted, stir to remove the scum to obtain the original alloy liquid, wherein The purity of the pure aluminum ingot is ≥99.80%, and the mass percentage of the process waste is 80%;

[0053] Then add anhydrous magnesium chloride flux, Al-20Mn (20% pure Al-Mn master alloy, that is, the mass percentage of Mn in the Al-Mn master alloy is 20%), Al-20Si (20% pure Al-Si The master alloy, that is, the mass percentage of Si in the Al-Si master alloy is 20%) and Al-5Ti-1B wire are batched, and the batching temperature is 735-740 ° C. The alloy element composition of the 4017 aluminum alloy sheet blank for th...

Embodiment 3

[0069] In terms of mass percentage, the alloy chemical composition of the 4017 aluminum alloy sheet for the new coating material of this embodiment is: Si 1.375%, Fe 0.475%, Cu 0.145%, Mn 1.1%, Mg 0.35%, Cr 0.025% , Zn 0.05%, Ti 0.03%, and the balance is Al.

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Abstract

The invention belongs to the technical field of aluminum alloy manufacturing, and particularly relates to a novel 4017 aluminum alloy sheet for a coating material and a preparation method of the 4017 aluminum alloy sheet. The novel 4017 aluminum alloy sheet for the coating material comprises the following alloy chemical components in percentage by mass: 1.35 to 1.4 percent of Si, 0.4 to 0.55 percent of Fe, 0.12 to 0.17 percent of Cu, 1.05 to 1.15 percent of Mn, 0.25 to 0.45 percent of Mg, 0.05 percent of Cr, 0.1 percent of Zn, 0.025 to 0.035 percent of Ti and the balance of Al. The novel 4017 aluminum alloy thin plate for the coating material is processed through the procedures of smelting, refining, cast rolling, cold rolling, primary intermediate annealing, cold rolling, secondary intermediate annealing, foil rolling of a finished product, pulling, straightening, cleaning and straightening, the lower limit tensile strength and the ductility of the processed finished product are far higher than those of a traditional aluminum alloy thin plate for a 4-series coating material, and the comprehensive performance is outstanding.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy manufacturing, and in particular relates to a 4017 aluminum alloy sheet for a novel coating material and a preparation method thereof. Background technique [0002] The traditional 4-series aluminum alloy sheet for coating material is obtained by semi-continuous casting, sawing and milling, preheating, hot rolling, cold rolling, and finishing, and finally produced. A 4017-H2X state aluminum alloy checker plate and a preparation method thereof, the preparation method includes smelting and casting, soaking in ingot, machining milling, hot rolling, cold rolling, cold rolling, embossing, continuous annealing, tension leveling Crosscut. The production process of 4-series aluminum alloy products for traditional coating materials in the market has been relatively mature, but the cost is relatively high. The current demand in the downstream market is for low-cost aluminum alloy raw materials, so l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03C22F1/043C21D8/02B21B3/00B21B1/46C22B7/00C22C21/00C22B9/05B22D11/18B22D11/22B22D11/06
CPCC22C21/02C22C1/026C22C1/03C22F1/043C21D8/0236C21D8/0268B21B3/00B21B1/463C22B7/001C22C21/00C22B9/05B22D11/003B22D11/18B22D11/22B22D11/0642B21B2003/001Y02P10/20
Inventor 邓艳超李红兴柴建胜王存委李纪雷李志阳
Owner HENAN MINGTAI AL INDUSTRIAL CO LTD
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