CN1229149A - Treating method for oxide layer on aluminium far-infrared reflector - Google Patents
Treating method for oxide layer on aluminium far-infrared reflector Download PDFInfo
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- CN1229149A CN1229149A CN 98113836 CN98113836A CN1229149A CN 1229149 A CN1229149 A CN 1229149A CN 98113836 CN98113836 CN 98113836 CN 98113836 A CN98113836 A CN 98113836A CN 1229149 A CN1229149 A CN 1229149A
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- oxide layer
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- aluminium
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Abstract
A process for treating the oxidized layer of far infrared reflecting aluminium hood includes such steps as washing with clean water, rubbing and washing with the solution of sulfuric, hydrochroric acid, or sodium sulfate, and coating the solution of citric acid and caustic soda to restore original brightness.
Description
The present invention relates to the treatment process of a kind of treatment process of aluminum zone of oxidation, particularly oxide layer on aluminium far-infrared reflector.
At present, big-and-middle-sized fuel-burning power plant, part has adopted the far infra-red heater coal that thaws.Aluminium far-infrared reflector is housed in greenhouse.Because of infrared ray heating tube can reach 400-800 ℃, the temperature height has quickened oxidation, the carbonization on aluminum reflector surface, uses just tarnish after 2 years, surface blackening, and reflection efficiency descends.As, it is thick that 300-400mm is frozen on the coal surface, and former just can melt with 3-4 hour, and because of reflector surface oxidation, carbonization, changing same coal needs 5-6 hour, and reflection efficiency drops to 30%.Recover the gloss of reflector, reach original design level, must change reflector, need ten thousand yuan of cost 60-74.
For overcoming above-mentioned shortcoming, the invention provides a kind of treatment process of oxide layer on aluminium far-infrared reflector.
The object of the present invention is achieved like this, at first decontamination washed with clear water earlier in far infrared rays reflector surface already oxidised, carbonization, uses the metabisulfite solution of sulfuric acid, hydrochloric acid mixed solution and the 90-80% (weight) of 10-20% (weight) to clean then; Use the citric acid of 10-15% (weight) and the soda lye of 90-85% (weight) to smear to light again, use flushing with clean water at last.
Treatment process of the present invention is simple, can make full use of the reflector that falls effect, less investment, instant effect.As, be loaded with the railway carriage that dress in the 13-16 joint freezes coal, by the greenhouse that aluminium far-infrared reflector the is housed coal that thaws, need reflector 3744-4608 piece (288 of every joint parking stalls), every 160 yuan, need Renminbi 599040-737280 unit, change reflector and need ten thousand yuan of 60-74.As, use the inventive method, handle the reflector that falls effect and only need ten thousand yuan of 10-15, save great amount of investment.Handle once, can use 2 years.Owing to use certain density acid limitedly, use flushing with clean water again, make cover body injury-free, the reflector of a 0.5-0.7mm can be handled 15-20 time.
The invention will be further described below in conjunction with embodiment.
Embodiment: at first claim sulfuric acid 600 grams, hydrochloric acid 400 grams, sodium sulfate 9000 grams are mixed with 10000 gram scouring solutions.With citric acid 150 grams, caustic soda 850 grams, be mixed with the glazing solution of 1000 grams.Decontamination is washed with clear water earlier in already oxidised far infrared rays reflector surface, clean with above-mentioned sulfuric acid, hydrochloric acid and metabisulfite solution then; Smear to light with citric acid and soda lye again, get final product with flushing with clean water at last.
Claims (3)
1, a kind of treatment process of oxide layer on aluminium far-infrared reflector is characterized in that far infrared rays reflector surface is washed with clear water earlier, uses the metabisulfite solution of sulfuric acid, hydrochloric acid mixed solution and the 90-80% (weight) of 10-20% (weight) to clean then; Smear with citric acid and soda lye again, use flushing with clean water at last.
2, by the treatment process of the described oxide layer on aluminium far-infrared reflector of claim 1, it is characterized in that in sulfuric acid, the hydrochloric acid mixed solution sulfuric acid 60% (weight), hydrochloric acid 40% (weight).
3, by the treatment process of the described oxide layer on aluminium far-infrared reflector of claim 1, it is characterized in that citric acid 10-15% (weight), caustic soda 90-85% (weight).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113836A CN1075566C (en) | 1998-03-13 | 1998-03-13 | Treating method for oxide layer on aluminium far-infrared reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113836A CN1075566C (en) | 1998-03-13 | 1998-03-13 | Treating method for oxide layer on aluminium far-infrared reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1229149A true CN1229149A (en) | 1999-09-22 |
| CN1075566C CN1075566C (en) | 2001-11-28 |
Family
ID=5223534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98113836A Expired - Fee Related CN1075566C (en) | 1998-03-13 | 1998-03-13 | Treating method for oxide layer on aluminium far-infrared reflector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1075566C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259977A (en) * | 2012-11-23 | 2015-01-07 | 江苏顺发电热材料有限公司 | Electric heating tube roll finish treatment process capable of prolonging service life of electric heating tube |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047115A (en) * | 1989-05-11 | 1990-11-21 | 郑小达 | Remove the pickling agent of oxide layer on stainless steel surface |
| JP3465998B2 (en) * | 1995-05-30 | 2003-11-10 | 日本パーカライジング株式会社 | Acidic cleaning composition for aluminum-based metal material and cleaning method |
| CN1152632A (en) * | 1996-10-17 | 1997-06-25 | 周国桢 | One stage method pretreating liquid for aluminium material oxidation pretreatment |
-
1998
- 1998-03-13 CN CN98113836A patent/CN1075566C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259977A (en) * | 2012-11-23 | 2015-01-07 | 江苏顺发电热材料有限公司 | Electric heating tube roll finish treatment process capable of prolonging service life of electric heating tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1075566C (en) | 2001-11-28 |
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