A bright and anti-corrosion aluminum profile preparation method

An aluminum profile and bright technology, applied in the direction of metal material coating process, etc., can solve the problem that the performance of aluminum alloy profiles needs to be improved, and achieve the effects of small loss, good performance and good dispersion.

Inactive Publication Date: 2016-02-03
ZHEJIANG HUA LV ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN102828073B (2014-1-8) discloses a production method of powder sprayed aluminum alloy profile, but the performance of the aluminum alloy profile still needs to be improved

Method used

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  • A bright and anti-corrosion aluminum profile preparation method

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Comparison scheme
Effect test

Embodiment 1

[0030] Aluminum profile preparation: Melt aluminum ingots into liquid aluminum, add zirconium-wrapped titanium dioxide and zirconium-wrapped silica mixed powders at a mass ratio of 1:2, the mixed powders account for 0.5% of the mass of the aluminum ingots, and then melt at the melting temperature Keep it for 3 hours; then pour it into a mold above 600°C under a pressure of 1.1MPa. After pouring into the mold, cool it to 350°C at a rate of 60-80°C per hour, then keep it warm for 2 hours, and then cool it at a rate of 30°C per hour to Insulate at 80°C for 1 hour; then cool at room temperature and release the aluminum profile.

[0031] Preparation of bright and anti-corrosion aluminum profiles:

[0032] Preparation of bright anticorrosion liquid: prepare 40 parts of sodium fluoride, 60 parts of ammonium bifluoride, 20 parts of potassium permanganate, 50 parts of potassium chromate, 25 parts of zinc phosphate, 18 parts of sodium nitrate, 12 parts of praseodymium chloride, and 16 ...

Embodiment 2

[0038] Aluminum profile preparation: Melt aluminum ingots into liquid aluminum, add zirconium-wrapped titanium dioxide and zirconium-wrapped silica mixed powders at a mass ratio of 1:3, the mixed powders account for 1.2% of the mass of the aluminum ingots, and then melt at the melting temperature Keep it for 5 hours; then pour it into a mold above 600°C under a pressure of 1.5MPa, cool it to 450°C at a rate of 80°C per hour after pouring into the mold, keep it for 3 hours, and then cool it to 100°C at a rate of 40°C per hour Keep warm for 2 hours; then cool at room temperature and demould the aluminum profile.

[0039] Preparation of bright and anti-corrosion aluminum profiles:

[0040] Preparation of bright anticorrosion liquid: prepare 40 parts of sodium fluoride, 60 parts of ammonium bifluoride, 20 parts of potassium permanganate, 40-50 parts of potassium chromate, 25 parts of zinc phosphate, 18 parts of sodium nitrate, and 12 parts of praseodymium chloride by weight , 16 ...

Embodiment 3

[0046] Aluminum profile preparation: Melt aluminum ingots into liquid aluminum, add zirconium-wrapped titanium dioxide and zirconium-wrapped silica mixed powders at a mass ratio of 1:2-3, the mixed powders account for 0.9% of the mass of the aluminum ingots, and then melt Keep at the temperature for 4 hours; then pour it into a mold above 600°C under a pressure of 1.3MPa, pour it into the mold and cool it to 390°C at a rate of 70°C per hour, then keep it for 2.5 hours, and then cool it at a rate of 38°C per hour to Insulate at 90°C for 1.5 hours; then cool at room temperature and release the aluminum profile.

[0047] Preparation of bright and anti-corrosion aluminum profiles:

[0048] Preparation of bright anticorrosion liquid: prepare 26 parts of sodium fluoride, 40 parts of ammonium bifluoride, 18 parts of potassium permanganate, 46 parts of potassium chromate, 19 parts of zinc phosphate, 12 parts of sodium nitrate, 9 parts of praseodymium chloride, and 13 parts of diamine...

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Abstract

The invention relates to the modification of aluminum profiles, in particular to a method for preparing bright and anti-corrosion aluminum profiles. It includes in turn: preparation of bright anticorrosion liquid: prepare 20-40 parts of sodium fluoride, 30-60 parts of ammonium bifluoride, 10-20 parts of potassium permanganate, 40-50 parts of potassium chromate, and 15-25 parts of zinc phosphate by weight 8-18 parts of sodium nitrate, 5-12 parts of praseodymium chloride, 10-16 parts of ethylenediaminetetraacetic acid, 7-14 parts of malic acid, 8-12 parts of sodium dodecylbenzene sulfate, 6- 13 parts, 15-25 parts of triethanolamine, 500-900 parts of water; control the pH value of 3-4 to obtain a bright anticorrosive solution; heat to 30-40 ° C, then impregnate the aluminum profile, the second impregnation, and then the first After the dipping treatment, the bright antiseptic is microwaved for 3-7 seconds, washed with flowing water, and dried. The aluminum profiles prepared by the invention are bright and soft, have excellent corrosion resistance, and are safe and environment-friendly.

Description

technical field [0001] The invention relates to the modification of aluminum profiles, in particular to a method for preparing bright and anti-corrosion aluminum profiles. Background technique [0002] Aluminum alloy profiles for construction require high comprehensive performance such as corrosion resistance, weather resistance, wear resistance, good appearance decoration and long service life. Therefore, aluminum profiles are protected by electrostatic powder spraying and fluorocarbon resin paint coating. Before decoration, surface chemical conversion treatment is necessary to improve the bonding force between the coating and the substrate and meet the high corrosion resistance requirements. [0003] CN102828073B (2014-1-8) discloses a production method of a powder-coated aluminum alloy profile, but the performance of the aluminum alloy profile still needs to be improved. Contents of the invention [0004] The purpose of the present invention is to provide a bright and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/38C23C22/73C23C22/82
Inventor 李建云林栋陈积祥
Owner ZHEJIANG HUA LV ALUMINUM
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