CN1986160A - Magnesium alloy surface pre-treating process - Google Patents
Magnesium alloy surface pre-treating process Download PDFInfo
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- CN1986160A CN1986160A CN 200510120991 CN200510120991A CN1986160A CN 1986160 A CN1986160 A CN 1986160A CN 200510120991 CN200510120991 CN 200510120991 CN 200510120991 A CN200510120991 A CN 200510120991A CN 1986160 A CN1986160 A CN 1986160A
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- nickel plating
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Abstract
The magnesium alloy surface pre-treating process includes the following steps: surface finishing, sand blasting, acid pickling and post-treatment. The process has low cost, simple operation and less environment pollution and influence on the health of the operator, and the increased sand blasting step can alter the surface structure of the magnesium alloy, raise the adhesion of the coating to the magnesium alloy substrate and strengthen the protection on the magnesium alloy substrate.
Description
Technical field
The present invention relates to the treatment technology of metal surface, be specifically related to a kind of magnesium alloy surface pre-treating process.
Background technology
Magnesium alloy has very high specific strength, specific stiffness, than elastic modelling quantity and good heat-conductivity conducting, have good damping shock absorption and electro-magnetic screen function simultaneously, be widely used in automobile making, Aero-Space, telecommunications field etc., be described as " the green engineering material of 21st century ".Yet because the chemism of magnesium alloy itself is higher, in air, be easy to oxidation, very easily under various environmental conditions, corrode, thereby hindered the extensive use of magnesium alloy.
The ripple instability because Mg alloy surface is lived very much; easy oxidized corrosion has limited the direct application of magnesium alloy, generally all needs in the use Mg alloy surface is carried out chemical modification; normally chemical plating layer of metal nickel on Mg alloy surface improves corrosion resistance of magnesium alloy.Traditional method of nickel plating on Mg alloy surface mainly contains soaks zinc and two kinds of methods of direct chemical plating; but before plating, all need Mg alloy surface is carried out preliminary treatment; conventional method is to carry out alramenting or chemical plating; take polishing; degreasing; pickling; technologies such as alkaline etching; but there is complex process; the defective of operating difficulties; and be subjected to the influence of Mg alloy surface structure easily; cause surface treatment non-uniform phenomenon to the magnesium alloy base material; employed in addition chemical agent cost is higher and health and environmental protection all brought very big harm, and commercial Application is subjected to strict restriction.Therefore improve magnesium alloy surface pre-treating process, develop a kind of environmental protection and saving type processing method and have a very high using value industrial.
Summary of the invention
The objective of the invention is above-mentioned deficiency at prior art, provide a kind of, solve in the prior art complex process that Mg alloy surface is carried out existing in the pretreatment procedure, be detrimental to health and cause problems such as environmental pollution at magnesium alloy surface pre-treating process.
A kind of magnesium alloy surface pre-treating process provided by the invention comprises following operating procedure:
1) surface dressing: dedusting, degreasing, cleaning treatment are carried out in the magnesium alloy member surface, dry stand-by;
2) surface sand-blasting: the magnesium alloy member surface spraying one deck gravel after arrangement, and cleaning, drying;
3) pickling: the magnesium alloy member after will drying immerses in the dilute acid soln and carries out pickling, 10～70 ℃ of temperature, and the time is 0.1～10 minute, carries out surface clean subsequently;
4) plating of phosphatization or subsequent chemistry is handled.
In the above-mentioned chemical nickel plating process on magnesium alloy, the process conditions of described surface sand-blasting step are: air pressure 0.03～0.07MPa, gravel adopts brown diamond spar sand, diamantane sand, iron sand or the bead sand between 80～200 orders.
The acid that acid pickling step in the above-mentioned technology adopted is that to be selected from concentration be a kind of in 0.5～2.0% the strong inorganic acids such as sulfuric acid, hydrochloric acid or nitric acid.
The acid that acid pickling step in the above-mentioned technology adopted is that to be selected from concentration be one or more mixture in 0.5～5.0% the organic acids such as oxalic acid, malic acid, butanedioic acid, adipic acid or acetic acid.
Matting in the above-mentioned technology is to adopt ultrasonic wave to clean 1～10 minute.
Magnesium alloy surface pre-treating process provided by the invention has following advantage:
1. the present invention has increased the sandblast operation one in traditional pretreatment procedure, has changed the structure of traditional Mg alloy surface processing layer, has improved the protection of cover layer to the magnesium alloy base material.
2. adopt treatment process of the present invention, need be through processing such as the polishing in the conventional method, grease removal, pickling, alkaline etchings, with low cost, process is simple and easy to operate, and reduced the pollution of environment and reduced health effect to operating personnel.
3. the magnesium alloy surface pretreatment that adopts the present invention to make can effectively improve the adhesive force between follow-up coating layer and the magnesium alloy base material, improves coating strength.
Description of drawings
Fig. 1 is a magnesium alloy surface pre-treating process flow chart provided by the invention.
Fig. 2 is the structural representation that adopts magnesium alloy surface pre-treating process gained magnesium alloy surface pretreatment provided by the invention.
The specific embodiment
Embodiment
Below in conjunction with the flow process among Fig. 1 magnesium alloy surface pre-treating process of the present invention is described.
Getting magnesium alloy member handles by following operating procedure:
1) surface dressing: dedusting, degreasing, cleaning treatment are carried out in the magnesium alloy member surface, dry stand-by;
2) surface sand-blasting: the magnesium alloy member surface spraying one deck gravel after arrangement, sandblast air pressure 0.03～0.07MPa, gravel adopts brown diamond spar sand, diamantane sand, iron sand or the bead sand between 80～200 orders;
3) ultrasonic wave cleaned 1～10 minute;
4) pickling: the magnesium alloy member after will drying immerses in the dilute acid soln and carries out pickling, the acid of adopting is that concentration is 0.5～2.0% sulfuric acid, hydrochloric acid or nitric acid, perhaps concentration is 0.5～5.0% oxalic acid, malic acid, butanedioic acid, adipic acid or acetic acid, 10～70 ℃ of pickling temperatures, the time is 0.1～10 minute;
5) carrying out ultrasonic wave subsequently cleaned 1～10 minute;
6) plating of phosphatization or subsequent chemistry is handled.
Gained through the structure of the magnesium alloy surface pretreatment of nickel plating as shown in Figure 2, wherein 1 is the magnesium alloy base material, 2 is the Mg alloy surface after sandblast and pickling, 3 is magnesium alloy subsequent treatment layer.
Claims (5)
1. a magnesium alloy surface pre-treating process is characterized in that, comprises following operating procedure:
1) surface dressing: dedusting, degreasing, cleaning treatment are carried out in the magnesium alloy member surface, dry stand-by;
2) surface sand-blasting: the magnesium alloy member surface spraying one deck gravel after arrangement, and cleaning, drying;
3) pickling: the magnesium alloy member after will drying immerses in the dilute acid soln and carries out pickling, 10～70 ℃ of temperature, and the time is 0.1～10 minute, carries out surface clean subsequently;
4) plating of phosphatization or subsequent chemistry is handled.
2. chemical nickel plating process on magnesium alloy according to claim 1 is characterized in that, the process conditions of described surface sand-blasting step are: air pressure 0.03～0.07MPa, gravel adopts brown diamond spar sand, diamantane sand, iron sand or the bead sand between 80～200 orders.
3. chemical nickel plating process on magnesium alloy according to claim 1 is characterized in that, the acid that described acid pickling step adopted is that to be selected from concentration be a kind of in 0.5～2.0% sulfuric acid, hydrochloric acid or the nitric acid.
4. chemical nickel plating process on magnesium alloy according to claim 1 is characterized in that, the acid that described acid pickling step adopted is that to be selected from concentration be at least a in 0.5～5.0% oxalic acid, malic acid, butanedioic acid, adipic acid or the acetic acid.
5. chemical nickel plating process on magnesium alloy according to claim 1 is characterized in that, described matting is to adopt ultrasonic wave to clean 1～10 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510120991 CN1986160A (en) | 2005-12-22 | 2005-12-22 | Magnesium alloy surface pre-treating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510120991 CN1986160A (en) | 2005-12-22 | 2005-12-22 | Magnesium alloy surface pre-treating process |
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| Publication Number | Publication Date |
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| CN1986160A true CN1986160A (en) | 2007-06-27 |
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| CN 200510120991 Pending CN1986160A (en) | 2005-12-22 | 2005-12-22 | Magnesium alloy surface pre-treating process |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551333A (en) * | 2013-10-17 | 2014-02-05 | 航天科工惯性技术有限公司 | Surface processing method for to-be-bonded parts of quartz flexible accelerometer |
| CN104149034A (en) * | 2014-08-22 | 2014-11-19 | 攀钢集团成都钢钒有限公司 | Method for removing oxide layers on inner surface and outer surface of titanium alloy seamless tube |
| CN104694913A (en) * | 2015-04-10 | 2015-06-10 | 湖南大学 | Magnesium alloy fluoride-free chemical nickel-plating solution and nickel plating technology thereof |
| CN107384121A (en) * | 2017-07-18 | 2017-11-24 | 阜南县民安人防工程设备有限公司 | A kind of anticorrosive paint and spraying method of water conservancy gate protective coating |
| CN108031634A (en) * | 2017-11-30 | 2018-05-15 | 安徽雷萨重工机械有限公司 | A kind of sheet metal pretreatment to the coating method |
| CN108456884A (en) * | 2017-02-21 | 2018-08-28 | 中国科学院金属研究所 | A kind of pre-treating method of magnesium alloy chromium-free conversion film homogenization |
| CN109848860A (en) * | 2019-02-21 | 2019-06-07 | 青岛环普节能科技有限公司 | A kind of water pump Desalination cleansing method |
| CN110355691A (en) * | 2019-07-19 | 2019-10-22 | 法柯特科技（江苏）有限公司 | A kind of novel automatic sandblasting ickle plating machine |
| CN111546240A (en) * | 2020-04-29 | 2020-08-18 | 南京威孚金宁有限公司 | Process for improving cleanliness of sliding vane rotor |
| CN111826663A (en) * | 2020-07-05 | 2020-10-27 | 江苏荣企新材料科技有限公司 | Surface cleaning treatment process for aluminum-magnesium alloy metal frame |
-
2005
- 2005-12-22 CN CN 200510120991 patent/CN1986160A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551333A (en) * | 2013-10-17 | 2014-02-05 | 航天科工惯性技术有限公司 | Surface processing method for to-be-bonded parts of quartz flexible accelerometer |
| CN104149034A (en) * | 2014-08-22 | 2014-11-19 | 攀钢集团成都钢钒有限公司 | Method for removing oxide layers on inner surface and outer surface of titanium alloy seamless tube |
| CN104149034B (en) * | 2014-08-22 | 2016-08-31 | 攀钢集团成都钢钒有限公司 | The method removing titanium alloy seamless pipe surfaces externally and internally oxide layer |
| CN104694913A (en) * | 2015-04-10 | 2015-06-10 | 湖南大学 | Magnesium alloy fluoride-free chemical nickel-plating solution and nickel plating technology thereof |
| CN108456884A (en) * | 2017-02-21 | 2018-08-28 | 中国科学院金属研究所 | A kind of pre-treating method of magnesium alloy chromium-free conversion film homogenization |
| CN108456884B (en) * | 2017-02-21 | 2019-10-22 | 中国科学院金属研究所 | A kind of pre-treating method of magnesium alloy chromium-free conversion film homogenization |
| CN107384121A (en) * | 2017-07-18 | 2017-11-24 | 阜南县民安人防工程设备有限公司 | A kind of anticorrosive paint and spraying method of water conservancy gate protective coating |
| CN108031634A (en) * | 2017-11-30 | 2018-05-15 | 安徽雷萨重工机械有限公司 | A kind of sheet metal pretreatment to the coating method |
| CN109848860A (en) * | 2019-02-21 | 2019-06-07 | 青岛环普节能科技有限公司 | A kind of water pump Desalination cleansing method |
| CN109848860B (en) * | 2019-02-21 | 2020-09-04 | 青岛环普节能科技有限公司 | Water pump desalination cleaning method |
| CN110355691A (en) * | 2019-07-19 | 2019-10-22 | 法柯特科技（江苏）有限公司 | A kind of novel automatic sandblasting ickle plating machine |
| CN111546240A (en) * | 2020-04-29 | 2020-08-18 | 南京威孚金宁有限公司 | Process for improving cleanliness of sliding vane rotor |
| CN111546240B (en) * | 2020-04-29 | 2022-03-15 | 南京威孚金宁有限公司 | Process for improving cleanliness of sliding vane rotor |
| CN111826663A (en) * | 2020-07-05 | 2020-10-27 | 江苏荣企新材料科技有限公司 | Surface cleaning treatment process for aluminum-magnesium alloy metal frame |
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