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Low-pollution aluminum alloy polishing process

An aluminum alloy, low pollution technology, applied in the processing field of aluminum alloy products, can solve problems such as effect, cost, influence difference of process environment, etc., and achieve the effects of good decoration effect, improved appearance quality and high absorption efficiency

Inactive Publication Date: 2018-06-29
安徽玉成光华铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with different polishing methods, the effect, cost, process and impact on the environment are quite different.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A low-pollution aluminum alloy polishing process, the polishing liquid is made of the following components in parts by weight: 15 parts of phosphoric acid, 14 parts of sulfuric acid, 12 parts of nitric acid, 11 parts of citric acid, 9 parts of sodium polyphosphate, 8-hydroxy 5.5 parts of quinoline, 4.2 parts of thiourea, 20 parts of polyethylene glycol, 25 parts of hydrogen peroxide, 10 parts of copper sulfate, 2.5 parts of sodium hexametaphosphate, 1.5 parts of urea, 1.0 parts of nickel sulfate, 0.5 parts of sodium hydroxide, polished The process consists of the following steps:

[0016] (1) After washing and drying the chemically degreased aluminum alloy, immerse it in the polishing solution, and take it out after polishing for 60 seconds. Immediately wash the polished aluminum alloy with clean water, completely wash off the remaining polishing solution on the surface, and then use Rinse with deionized water 3 times;

[0017] (2) Then place the aluminum alloy in a so...

Embodiment 2

[0022] A low-pollution aluminum alloy polishing process, the polishing liquid is made of the following components in parts by weight: 16 parts of phosphoric acid, 15 parts of sulfuric acid, 13 parts of nitric acid, 12 parts of citric acid, 9.5 parts of sodium polyphosphate, 8-hydroxy 5.6 parts of quinoline, 4.3 parts of thiourea, 23 parts of polyethylene glycol, 28 parts of hydrogen peroxide, 11 parts of copper sulfate, 2.6 parts of sodium hexametaphosphate, 1.6 parts of urea, 1.1 parts of nickel sulfate, 0.6 parts of sodium hydroxide, polished The process consists of the following steps:

[0023] (1) After washing and drying the chemically degreased aluminum alloy, immerse it in the polishing solution, take it out after polishing for 70 seconds, immediately wash the polished aluminum alloy with clean water, completely wash off the remaining polishing solution on the surface, and then use Rinse with deionized water 4 times;

[0024] (2) Then place the aluminum alloy in a solu...

Embodiment 3

[0029] A low-pollution aluminum alloy polishing process, the polishing liquid is made of the following components in parts by weight: 18 parts of phosphoric acid, 16 parts of sulfuric acid, 14 parts of nitric acid, 13 parts of citric acid, 10 parts of sodium polyphosphate, 8-hydroxy 5.8 parts of quinoline, 4.5 parts of thiourea, 25 parts of polyethylene glycol, 30 parts of hydrogen peroxide, 12 parts of copper sulfate, 2.8 parts of sodium hexametaphosphate, 1.8 parts of urea, 1.2 parts of nickel sulfate, 0.8 parts of sodium hydroxide, polished The process consists of the following steps:

[0030] (1) After washing and drying the chemically degreased aluminum alloy, immerse it in the polishing solution, take it out after polishing for 90 seconds, immediately wash the polished aluminum alloy with clean water, completely wash off the remaining polishing solution on the surface, and then use Rinse with deionized water 5 times;

[0031] (2) Then place the aluminum alloy in a solut...

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PUM

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Abstract

The invention relates to the technical field of aluminum alloy product processing, anddiscloses a low-pollution aluminum alloy polishing process. After treatment, a prepared polishing solution has high absorption efficiency on harmful components; especially when alkaline potassium permanganate absorbs nitrogen oxide with low concentration, no secondary pollutants is produced; through treatment, asaturated absorption liquid can be used as a fertilizer, and has the characteristics of good corrosion resistance and gloss retention, no amorphous layer, difficulty in impurities mixing, and the like;after polishing treatment, the surface roughness of an aluminum alloy is low, the appearance quality is improved, the corrosion resistance is enhanced, the decorative effect is good, and in addition,the aluminum alloy has higher heat reflection capacity and light reflection capacity.

Description

technical field [0001] The invention belongs to the technical field of processing aluminum alloy products, and in particular relates to a low-pollution aluminum alloy polishing process. Background technique [0002] Aluminum alloy usually uses alloying elements such as copper, zinc, manganese, silicon, magnesium, etc. Compared with ordinary carbon steel, it is lighter and has corrosion resistance, but its corrosion resistance is not as good as that of pure aluminum. A protective oxide layer forms on the surface of aluminum alloys in a clean, dry environment. Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding, aluminum alloy and chemical industry. Because of their good physical and chemical properties, aluminum and aluminum alloys have been widely used in marine industry, power system and aviation and other fields. [0003] With the devel...

Claims

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Application Information

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IPC IPC(8): C23F3/03
CPCC23F3/03
Inventor 何启华
Owner 安徽玉成光华铝业有限公司
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