Acid and alkali corrosion resistant aluminum alloy section bars

An aluminum alloy profile, acid and alkali resistant technology, applied in the field of metal materials, can solve problems such as suboptimal performance, achieve the effect of eliminating harmful effects, refining recrystallized grains, and improving shaping

Inactive Publication Date: 2015-12-23
ANHUI XIN FA ALUMINUM PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, the performance of acid and alkali corrosion-resistant aluminum alloy profiles has not yet reached the optimal level, and continuous improvement is still needed

Method used

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  • Acid and alkali corrosion resistant aluminum alloy section bars

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] S1: Weighing each raw material for smelting to obtain an ingot;

[0021] S2: Homogenization: Place the ingot obtained in S1 in a holding furnace at 540°C, and keep it at 540°C for 9 hours. After the holding is completed, the holding furnace is cooled to 300°C, and then air-cooled to room temperature;

[0022] S3: Remove the outer skin of the ingot car obtained in S2, and extrude it on a hydraulic press. Before extrusion, heat the extrusion cylinder, extrusion die and ingot. The profile is stretched and straightened, and the stretched and straightened profile is heat treated;

[0023] S4: Surface treatment: The heat-treated profiles completed in S3 are surface-treated according to the treatment route of surface grinding → degreasing → alkali washing → water rinsing → light emission → water rinsing → anodizing → sealing → drying, wherein the anodizing solution consists of It is 200g / L sulfuric acid + 20g / L oxalic acid + 15g / L glycerol, the anodizing temperature is 25°C, ...

Embodiment 2

[0025] S1: Weighing each raw material for smelting to obtain an ingot;

[0026] S2: Homogenization: Place the ingot obtained in S1 in a holding furnace at 580°C, and keep it at 580°C for 7 hours. After the heat preservation is completed, the holding furnace is cooled to 305°C, and then air-cooled to room temperature;

[0027] S3: Remove the outer skin of the ingot car obtained in S2, and extrude it on a hydraulic press. Before extrusion, heat the extrusion cylinder, extrusion die and ingot. The profile is stretched and straightened, and the stretched and straightened profile is heat treated;

[0028] S4: Surface treatment: The heat-treated profiles completed in S3 are surface-treated according to the treatment route of surface grinding → degreasing → alkali washing → water rinsing → light emission → water rinsing → anodizing → sealing → drying, wherein the anodizing solution consists of It is 195g / L sulfuric acid + 18g / L oxalic acid + 13g / L glycerin, anodizing temperature is ...

Embodiment 3

[0030] S1: Weighing each raw material for smelting to obtain an ingot;

[0031] S2: Homogenization: Place the ingot obtained in S1 in a holding furnace at 560°C, and keep it at 560°C for 8 hours. After the holding is completed, the holding furnace is cooled to 295°C, and then air-cooled to room temperature;

[0032] S3: Remove the outer skin of the ingot car obtained in S2, and extrude it on a hydraulic press. Before extrusion, heat the extrusion cylinder, extrusion die and ingot. The profile is stretched and straightened, and the stretched and straightened profile is heat treated;

[0033] S4: Surface treatment: The heat-treated profiles completed in S3 are surface-treated according to the treatment route of surface grinding → degreasing → alkali washing → water rinsing → light emission → water rinsing → anodizing → sealing → drying, wherein the anodizing solution consists of 205g / L sulfuric acid + 22g / L oxalic acid + 17g / L glycerin, anodizing temperature is 30°C, anodizing ...

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Abstract

The invention discloses acid and alkali corrosion resistant aluminum alloy section bars, and relates to the field of metal material. The aluminum alloy section bars comprise the components by the weight percentage: 0.75-0.90% of Mg, 0.5-0.6% of Si, 0.10-0.14% of Cu, 0.20-0.25% of Mn, 0-0.1% of Ti, 0-0.1% of Cr, 0.1-0.3% of Fe, 0.20-0.28% of Zn, and the balance Al. According to the aluminum alloy section bars, the alloy composition is optimized, smelting casting, homogenization, extrusion, heat treatment and surface treatment in the production technology are optimized, and the mechanical properties of the section bars and the quality of a surface film layer are effectively improved.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to an acid and alkali corrosion-resistant aluminum alloy profile. Background technique [0002] The advantages of sliding windows are simplicity, beauty, large window width, large glass block, wide field of vision, high lighting rate, convenient glass cleaning, flexible use, safety and reliability, long service life, open in one plane, occupy less space, and install screen windows conveniently Wait. At present, sliding windows are the most widely used in doors and windows. Compared with other metal profiles, aluminum alloy profiles have the advantages of light weight, beautiful appearance and economy. At present, sliding windows are mainly made of aluminum alloy profiles. In the prior art, the properties of acid and alkali corrosion resistant aluminum alloy profiles are still not optimal, and continuous improvement is still needed. [0003] Therefore, how to obtain an excellent alum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/047
Inventor 银士宝周风华
Owner ANHUI XIN FA ALUMINUM PROD
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