CN105040010A - Air conditioner system pipeline member pickling passivation technology - Google Patents
Air conditioner system pipeline member pickling passivation technology Download PDFInfo
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- CN105040010A CN105040010A CN201510384154.XA CN201510384154A CN105040010A CN 105040010 A CN105040010 A CN 105040010A CN 201510384154 A CN201510384154 A CN 201510384154A CN 105040010 A CN105040010 A CN 105040010A
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- system pipeline
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Abstract
The invention relates to the technical field of copper pipe surface treatment, and especially relates to an air conditioner system pipeline member pickling passivation technology. The technology comprises the following steps: 1, carrying out three-acid oil removal: immersing an air conditioner system pipeline member for 1.5-3min in a three-acid oil removal solution to remove oil stains, spots and oxides on the surface; 2, carrying out clear water cleaning: cleaning the acid solution residual on the surface of the air conditioner system pipeline member by using clear water; 3, carrying out three-acid bright dipping: immersing the air conditioner system pipeline member in a three-acid dipping solution for 1-1.5min; 4, carrying out secondary clear water cleaning: cleaning the three-acid bright dipping solution residual on the air conditioner system pipeline member by using clear water; and 5, carrying out deionized water cleaning: cleaning the air conditioner system pipeline member in deionized water for 1.5-3min to obtain a passive film wrapped air conditioner system pipeline member with clean surface. The air conditioner system pipeline member undergoes physical pretreatment and chemical pretreatment, a copper chemical plating layer solution is prepared, and chemical plating improves the mechanical strength, the high temperature resistance and the corrosion resistance of the air conditioner system pipeline member surface protection film.
Description
Technical field
The present invention relates to copper pipe surface processing technology field, especially a kind of air-conditioning system pipeline part acid washing passivation technology.
Background technology
It is all copper pipe that the air-conditioning system pipeline part overwhelming majority uses, and Copper and its alloy good welding performance, easily processing, surface aesthetic, become industrial second largest metallic substance at present, be only second to iron and steel.Copper and its alloy has in fields such as aerospace, food product pack, building decoration, electronic appliance, communications and transportation to be applied very widely.In prior art, Copper and its alloy is very easily easily oxidized blackening in atmosphere, and the copper pipe physical strength after blackening is bad, non-refractory, and erosion resistance is poor; The use of prior art are all scavenging solutions that chemical plant configures, the thickness of coating that the processing method of cleaning in the scavenging solution configured is formed is thinner, and lower with copper surface adhesion force, physical strength is bad, scarcely high temperature resistant, in corrosive medium, coating easily comes off, and preservative effect is poor.
Summary of the invention
The object of this invention is to provide air-conditioning system pipeline part acid washing passivation technology; air-conditioning system pipeline part is through physics pre-treatment and Chemical Pretreatment; the configuration of copper chemical plating solution, electroless plating, improves air-conditioning system pipeline part surface protection film physical strength, resistance to elevated temperatures, erosion resistance.
The technical solution used in the present invention is as follows:
A kind of air-conditioning system pipeline part acid washing passivation technology, described acid washing passivation technology, the first step, three sour oil removings: air-conditioning system pipeline part is immersed in the solution of three sour oil removings, greasy dirt, spot and oxide compound that removing is surperficial, the time is 1.5-3min; Second step, clean water: the remaining acid solution washing away air-conditioning system pipeline part surface with clear water; 3rd step, three sour bright dippings: air-conditioning system pipeline part is immersed 1-1.5min in the solution of three sour bright dippings; 4th step, twice clean water: the solution washing away the three sour bright dippings that air-conditioning system pipeline part remains with clear water; 5th step, washed with de-ionized water: air-conditioning system pipeline part is cleaned 1.5-3min in deionized water, can obtain surface clean and be enclosed with the air-conditioning system pipeline part of passive film.
As preferably, the proportioning of the solution of in the described the first step three sour oil removings is as follows: use sulfuric acid, nitric acid, hydrochloric acid and water to configure according to 200:200:3:1000 mass ratio.
As preferably, in the 3rd described step, the solution ratio of three sour bright dippings is as follows: use sulfuric acid, nitric acid, hydrochloric acid, water and brightening agent to configure according to 100:15:3:150:15 mass ratio.
As preferably, the pH value of the deionized water that the 5th described step uses is 6.5-7.5, and specific conductivity is 1.0-2.0.
Compared with the prior art, beneficial effect of the present invention is as follows:
Air-conditioning system pipeline part of the present invention is through physics pre-treatment and Chemical Pretreatment, and the configuration of copper chemical plating solution, electroless plating, improves air-conditioning system pipeline part surface protection film physical strength, resistance to elevated temperatures, erosion resistance.
Embodiment
A kind of air-conditioning system pipeline part acid washing passivation technology, described acid washing passivation technology, the first step, three sour oil removings: air-conditioning system pipeline part is immersed in the solution of three sour oil removings, greasy dirt, spot and oxide compound that removing is surperficial, the time is 1.5-3min; Second step, clean water: the remaining acid solution washing away air-conditioning system pipeline part surface with clear water; 3rd step, three sour bright dippings: air-conditioning system pipeline part is immersed 1-1.5min in the solution of three sour bright dippings; 4th step, twice clean water: the solution washing away the three sour bright dippings that air-conditioning system pipeline part remains with clear water; 5th step, washed with de-ionized water: air-conditioning system pipeline part is cleaned 1.5-3min in deionized water, can obtain surface clean and be enclosed with the air-conditioning system pipeline part of passive film.
As preferably, the proportioning of the solution of in the described the first step three sour oil removings is as follows: use sulfuric acid, nitric acid, hydrochloric acid and water to configure according to 200:200:3:1000 mass ratio.
As preferably, in the 3rd described step, the solution ratio of three sour bright dippings is as follows: use sulfuric acid, nitric acid, hydrochloric acid, water and brightening agent to configure according to 100:15:3:150:15 mass ratio.
As preferably, the pH value of the deionized water that the 5th described step uses is 6.5-7.5, and specific conductivity is 1.0-2.0.
Air-conditioning system pipeline part of the present invention is through physics pre-treatment and Chemical Pretreatment, and the configuration of copper chemical plating solution, electroless plating, improves air-conditioning system pipeline part surface protection film physical strength, resistance to elevated temperatures, erosion resistance.
Claims (4)
1. an air-conditioning system pipeline part acid washing passivation technology, it is characterized in that: described acid washing passivation technology, the first step, three sour oil removings: air-conditioning system pipeline part is immersed in the solution of three sour oil removings, greasy dirt, spot and oxide compound that removing is surperficial, the time is 1.5-3min; Second step, clean water: the remaining acid solution washing away air-conditioning system pipeline part surface with clear water; 3rd step, three sour bright dippings: air-conditioning system pipeline part is immersed 1-1.5min in the solution of three sour bright dippings; 4th step, twice clean water: the solution washing away the three sour bright dippings that air-conditioning system pipeline part remains with clear water; 5th step, washed with de-ionized water: air-conditioning system pipeline part is cleaned 1.5-3min in deionized water, can obtain surface clean and be enclosed with the air-conditioning system pipeline part of passive film.
2. a kind of air-conditioning system pipeline part acid washing passivation technology according to claim 1, is characterized in that: the solution ratio of in the described the first step three sour oil removings is as follows: use sulfuric acid, nitric acid, hydrochloric acid and water to configure according to 200:200:3:1000 mass ratio.
3. a kind of air-conditioning system pipeline part acid washing passivation technology according to claim 1, is characterized in that: in the 3rd described step, the solution ratio of three sour bright dippings is as follows: use sulfuric acid, nitric acid, hydrochloric acid, water and brightening agent to configure according to 100:15:3:150:15 mass ratio.
4. a kind of air-conditioning system pipeline part acid washing passivation technology according to claim 1, is characterized in that: the pH value of the deionized water that the 5th described step uses is 6.5-7.5, and specific conductivity is 1.0-2.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384154.XA CN105040010A (en) | 2015-07-03 | 2015-07-03 | Air conditioner system pipeline member pickling passivation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384154.XA CN105040010A (en) | 2015-07-03 | 2015-07-03 | Air conditioner system pipeline member pickling passivation technology |
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| CN105040010A true CN105040010A (en) | 2015-11-11 |
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| CN201510384154.XA Pending CN105040010A (en) | 2015-07-03 | 2015-07-03 | Air conditioner system pipeline member pickling passivation technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945544A (en) * | 2016-06-16 | 2016-09-21 | 常州市常蒸热交换器科技有限公司 | Manufacturing method of multilayer condenser |
| CN106288536A (en) * | 2016-08-16 | 2017-01-04 | 安徽天祥空调科技有限公司 | The surface of internal cavity of a kind of condensing tube processes technique |
| CN106367767A (en) * | 2016-11-17 | 2017-02-01 | 常州朗锐铸造有限公司 | Steel shell preprocessing system and steel shell preprocessing method |
| CN106435611A (en) * | 2016-10-16 | 2017-02-22 | 合肥太通制冷科技有限公司 | Pickling and passivating technology of refrigerator system pipeline part |
| CN113549925A (en) * | 2021-07-22 | 2021-10-26 | 西安诚惠金属材料保护有限公司 | Brazing aluminum piece cleaning process |
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| CN101100755A (en) * | 2007-07-23 | 2008-01-09 | 太仓市金鑫铜管有限公司 | Acid pickling method of copper pipe for automobile oil cooler |
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| CN103060828A (en) * | 2013-02-04 | 2013-04-24 | 北京蓝星科技有限公司 | Pickling passivation agent for copper and copper alloy as well as preparation method and application of pickling passivation agent |
| CN103114284A (en) * | 2013-02-26 | 2013-05-22 | 浙江荣亿精密机械有限公司 | Copper sleeve surface treatment process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945544A (en) * | 2016-06-16 | 2016-09-21 | 常州市常蒸热交换器科技有限公司 | Manufacturing method of multilayer condenser |
| CN105945544B (en) * | 2016-06-16 | 2018-08-07 | 常州市常蒸热交换器科技有限公司 | The production method of multilayer condenser |
| CN106288536A (en) * | 2016-08-16 | 2017-01-04 | 安徽天祥空调科技有限公司 | The surface of internal cavity of a kind of condensing tube processes technique |
| CN106435611A (en) * | 2016-10-16 | 2017-02-22 | 合肥太通制冷科技有限公司 | Pickling and passivating technology of refrigerator system pipeline part |
| CN106367767A (en) * | 2016-11-17 | 2017-02-01 | 常州朗锐铸造有限公司 | Steel shell preprocessing system and steel shell preprocessing method |
| CN113549925A (en) * | 2021-07-22 | 2021-10-26 | 西安诚惠金属材料保护有限公司 | Brazing aluminum piece cleaning process |
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