CN103924232B - A kind of Mg alloy surface imitates the process that copper imitates gold - Google Patents
A kind of Mg alloy surface imitates the process that copper imitates gold Download PDFInfo
- Publication number
- CN103924232B CN103924232B CN201410181376.7A CN201410181376A CN103924232B CN 103924232 B CN103924232 B CN 103924232B CN 201410181376 A CN201410181376 A CN 201410181376A CN 103924232 B CN103924232 B CN 103924232B
- Authority
- CN
- China
- Prior art keywords
- imitates
- alloy
- gold
- copper
- phosphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
A kind of Mg alloy surface imitates the process that copper imitates gold, coloring will be passivated in magnesium alloy immersion passivating dip after grinding and polishing or wire drawing process, the passivating solution is water or the aqueous solution containing at least one orthophosphates, after 80~100 DEG C are incubated 2 10h, with the water-base resin sealing of hole of water white transparency, then in 120~260 DEG C of bakings.The magnesium alloy that the present invention is obtained finally has the gloss or texture of copper or gold, and corrosion-resistant and resistance to fungi is preferable.Present invention process is reasonable, flow is simple, with low cost, production process safety, efficiency high, low cost, no acidic discharging of waste liquid, without special installation, it is passivated the pollution-free nontoxicity of coloring liquid, process environmental protection, products obtained therefrom appearance looks elegant is beautiful, gloss and texture with metal, possess high corrosion resistance and resistance to fungi, have a good application prospect.
Description
Technical field
The present invention relates to a kind of processing method of Mg alloy surface, particularly relate to a kind of Mg alloy surface and imitate the work that copper imitates gold
Process；Belong to metal surface treatment technology.
Background technology
Magnesium alloy is considered as 21 century most " green material " rich in development and application potentiality, high, close with specific strength
Spend low, vibration strength it is good the features such as, due to magnesium alloy have environmental protection, the good fine quality of recuperability so that magnesium alloy aviation,
The application in the fields such as space flight, automobile, household electrical appliances, biomaterial is more and more extensive.But corrosion resistance of magnesium alloy is poor, the easy oxygen in surface
Change, be difficult to keep light also to turn into the bottleneck that limitation magnesium alloy is used.
In order to improve corrosion resistance of magnesium alloy, metallic luster is kept, often using the side such as galvanic anode oxidation, differential arc oxidation
Method.
Existing anodic oxidation or micro-arc oxidation process, complex process, cost are high, required equipment is complicated, and treatment fluid
In often have the element of harm to human health and environment containing chromium, cobalt and fluorine etc., big part magnesium product is difficult to, wherein
Differential arc oxidation formation film is easy to crack, poor impact resistance, easy to fall off.Especially both techniques are all difficult to imitate magnesium alloy
The imitative gold processing of copper, makes its surface have the gloss and texture of copper or gold.
Therefore urgent need development one kind is environmentally friendly, technique is simple, lower-cost copper simulation surface imitates technology for gold.
The content of the invention
Present invention aims at providing, a kind of technological design is reasonable, equipment requirement is simple and convenient to operate, cost is low, efficiency
High Mg alloy surface imitates the process that copper imitates gold.
A kind of Mg alloy surface of the present invention imitates the process that copper imitates gold, comprises the following steps：
The first step：Lightization processing is carried out to Mg alloy surface；Then, by the magnesium alloy immersion 80 after brightization processing
Surface passivating treatment is carried out in DEG C -100 DEG C of passivating solution, the passivating solution is selected from water or phosphate solution, the pH value of passivating solution
For 7-13；Due to the magnesium alloy handled by surface-brighteningization, activity is very high, under the conditions of neutral or alkaline environment, it is easy to
The oxide-film or hydroxide film of densification are formed on surface, realizes that magnesium alloy is passivated；
Second step：Mg alloy surface obtained by the first step is coated into hole sealing agent, then, heated baking carries out sealing pores；
Baking temperature is less than or equal to 260 DEG C.
The main purpose of sealing pores has two aspects, is to block the cavity that Mg alloy surface is not passivated part first, its
It is secondary, it is to Mg alloy surface formation protective coating；Understood according to optical theory analysis, due to magnesium alloy substrate, passivation layer, coating
Refractive index to light is different, therefore, and the reflected light that light is formed after magnesium alloy substrate, passivation layer, coating reflection is mutually concerned with
Relate to, make the magnesium alloy after passivation that golden colour lustre is presented.
A kind of Mg alloy surface of the present invention imitates the process that copper imitates gold, and the brightization processing is using shot-peening, grinding
At least one of polishing or wire drawing handling process are handled Mg alloy surface, to obtain the material of any surface finish；Processing
Afterwards, Mg alloy surface finish is 0.05-0.1 μm.
A kind of Mg alloy surface of the present invention imitates the process that copper imitates gold, when the passivating solution is water, and passivating solution is selected from and gone
Ionized water or distilled water；When the passivating solution is phosphate solution, the mass-volume concentration of phosphate solution is 0.6-3g/l, phosphorus
Solute is selected from least one of disodium hydrogen phosphate, sodium tripolyphosphate, tertiary sodium phosphate in acid salt solution.Sodium tripolyphosphate is to gold such as calcium and magnesiums
Category ion has complexing power.In addition, the property with certain organic matter surfactant, there is strong emulsification to grease.
Sodium ascorbyl phosphate also has infiltration and emulsification, can increase passivating solution wettability and reaction speed.
A kind of Mg alloy surface of the present invention is imitated in the process that copper imitates gold, Passivation Treatment, and magnesium alloy soaks in passivating solution
The bubble time is 2-10h.
A kind of Mg alloy surface of the present invention imitates the process that copper imitates gold, and the solute of phosphate solution selects orthophosphoric acid respectively
When salt disodium hydrogen phosphate, sodium tripolyphosphate or tertiary sodium phosphate exclusive use, the mass-volume concentration of phosphate solution is respectively：
Disodium phosphate soln 1-3g/l
Sodium tripolyphosphate solution 0.6-2g/l
Trisodium phosphate solution 0.6-2g/l.
A kind of Mg alloy surface of the present invention imitates the process that copper imitates gold, and the hole sealing agent is the aqueous tree of water white transparency
Fat；The water-base resin is selected from water-based acrylic resin, water soluble acrylic acid epoxy resin, fluororesin, aqueous epoxy resins, Teflon
One kind in imperial varnish, epoxy resin varnish.
A kind of Mg alloy surface of the present invention imitates the process that copper imitates gold, and hole sealing agent is coated by the way of dip-coating or spraying
To Mg alloy surface, carry out after sealing of hole, magnesium alloy is toasted, baking temperature is 120-260 DEG C, and baking time is 10-
30min；It is preferred that baking temperature be 150-230 DEG C；Preferred baking temperature is 170-200 DEG C.
A kind of Mg alloy surface of the present invention imitates the process that copper imitates gold, the magnesium alloy be selected from pure magnesium, Mg-Al-Zn systems,
One kind in Mg-Zn-Zr systems alloy.
A kind of Mg alloy surface of the present invention imitates copper and imitates the magnesium alloy after the process processing of gold, is marked according to QJ/ZB4-85
Standard, is measured using drop method to the corrosion resistance of passivating film, and the anti-corrosion time is more than 12 seconds；
Mould experiment, in 30 days, surface mildew percentage≤10% are carried out according to JB840-86 standards；
Magnesium alloy sample after processing is incubated after 1h in 220 DEG C of drying boxes and taken out, input, which is not higher than in 15 DEG C of water, is
One circulation carries out thermal shock resistance test, and cycle-index is more than 20 times；
Damp heat test is carried out according to GJB150.9-1986 military equipment environmental tests method, 432h, outward appearance is unchanged；
Using neutral salt spray test and according to ASTM B117.97 standards, the decay resistance of magnesium alloy is examined, 60h, outside
See unchanged.
A kind of Mg alloy surface that the present invention is provided imitates the process that copper imitates gold, there is following several big advantages：
1st, present invention process is reasonable in design, flow is simple, with low cost, production process is safe, without degreasing, alkali
Wash, pre-treatment and the follow-up cleaning treatment such as pickling or activation, production efficiency is high, beneficial to large-scale industrial production.
2nd, equipment needed for the present invention is simple, and the chemical reagent added in passivating dip is used in food processing industry
Additive, it is environmentally safe, it is also non-toxic, it can be used for the surface treatment of biomedical magnesium alloy materials.
3rd, the handled magnesium alloy materials of the present invention and product not only have the lightweight earthquake-proof function of magnesium, have copper or gold again
Gloss and texture, and have preferably it is anticorrosive and with antifungi ability.It can be widely applied to communications and transportation, household electrical appliances and daily
In terms of life.
In summary, present invention process is reasonable, flow is simple, with low cost, production process is safe, and not only product appearance is beautiful
Beautiful, gloss and texture with metal, and process environmental protection are seen, possesses high corrosion resistance and resistance to fungi, with good
Application prospect.
Embodiment
The present invention is described in further detail with reference to embodiments, the embodiment of the present invention is intended to further illustrate this hair
It is bright, it is not intended to limit the present invention.
In the embodiment of the present invention, various performance test methods are as follows：
1st, droplet test
Experiment is measured according to QJ/ZB4-85 standards using drop method to the corrosion resistance of passivating film.Dropping liquid will be put
(0.05g potassium permanganate and 5ml nitric acid are dissolved in 95ml high purity waters) is dropped on sample, with a dropping liquid by red become colorless when
Between weigh the decay resistance of passivating film, the time, longer decay resistance was better.
2nd, mould test
The temperature that experiment according to JB840-86 standards control in mould experiment, moist chamber is 28-30 DEG C, and relative humidity is
95-100%, wind speed is not more than 0.5m/s requirement, after handling 30 days, detects the growing state of mould.
3rd, thermal shock is tested
Imitative copper magnesium alloy sample is incubated after 1h in 220 DEG C of drying boxes and taken out, it is one that input, which is not higher than in 15 DEG C of water,
Circulation.Number of times is recorded as the performance characterization of magnesium alloy resistance to thermal shock.
4th, damp heat test
Experiment carries out damp heat test according to GJB150.9-1986 military equipment environmental tests method.Experimental condition：With 24h
For a test period, each cycle is divided into heating, hot and humid, cooling and low temperature and high relative humidity four-stage.Concretely comprise the following steps：In 2h
It is interior, chamber temperature is raised to 60 DEG C by 30 DEG C, relative humidity keeps 6h after rising to 95%, stabilization；By chamber temperature in 8h
Degree drops to 30 DEG C, and relative humidity is maintained at more than 85% during this；When chamber temperature reaches 30 DEG C, relative humidity is 95%
Under the conditions of, keep 8h；Three above step is repeated, 18 cycle (432h) experiments are carried out.
5th, salt spray test
Using neutral salt spray test and according to ASTM B117.97 standards, the decay resistance of magnesium alloy is examined.
Embodiment 1
Cleaned after AZ31 magnesium alloy plates are polished with distilled water.It is put into passivating solution and is passivated coloring, temperature is 100
DEG C, passivating solution is the 0.8g/L sodium tripolyphosphate aqueous solution, pH=8.0.It is incubated after 7h and takes out, places into water-based acrylic resin
Dip-coating sealing of hole is carried out, and taking-up immediately is put into stove and toasted, baking temperature is 150 DEG C, baking time 10min.After baking
Sample carries out various performance tests, and assay is as shown in table 1.
Embodiment 2
Cleaned after AZ31 magnesium alloy plates are polished with distilled water.It is put into deionized water and is passivated coloring, temperature is
100 DEG C, it is incubated after 10h and takes out, place into water soluble acrylic acid epoxy resin and carry out after dip-coating sealing of hole, taking-up, which is put into stove, dries
Roasting, baking temperature is 160 DEG C, baking time 10min.Various performance tests, assay such as table 1 are carried out to the sample after baking
It is shown.
Embodiment 3
Cleaned after AZ61 magnesium alloy plates are polished with distilled water.It is put into passivating solution and is passivated coloring, temperature is 85
DEG C, passivating solution is the 1.5g/L sodium tripolyphosphate aqueous solution, pH=10.0.It is incubated after 8h and takes out, places into fluororesin and soaked
Apply after sealing of hole, taking-up is dried, be put into stove and toast, baking temperature is 220 DEG C, baking time 20min.Sample after baking is entered
The various performance tests of row, assay is as shown in table 1.
Embodiment 4
Cleaned after AZ91 magnesium alloy plates are polished with distilled water.It is put into passivating solution and is passivated coloring, temperature is 100
DEG C, passivating solution is 0.9g/L trisodium phosphate aqueous solution, pH=8.0.It is incubated after 4h and takes out, places into aqueous epoxy resins
After row sealing pores, taking-up is dried, and is put into stove and is toasted, and baking temperature is 120 DEG C, baking time 10min.To the sample after baking
Product carry out various performance tests, and assay is as shown in table 1.
Embodiment 5
Cleaned after AZ80 magnesium alloy plates are polished with distilled water.It is put into passivating solution and is passivated coloring, temperature is 100
DEG C, passivating solution is the 2g/L disodium hydrogen phosphate aqueous solution, pH=8.5.It is incubated after 10h and takes out, then is sprayed with Teflon varnish
Sealing of hole is applied, is subsequently placed into stove and toasts, baking temperature is 350 DEG C, baking time 30min.Sample after baking is carried out various
Performance test, assay is as shown in table 1.
Embodiment 6
Cleaned after ZK60 magnesium alloy plates are polished with distilled water.It is put into passivating solution and is passivated coloring, temperature is 95
DEG C, passivating solution is disodium hydrogen phosphate and the 0.8g/L sodium tripolyphosphate aqueous solution containing 1g/L, pH=10.5.It is incubated after 9h and takes out,
Spraying sealing of hole is carried out with epoxy resin varnish again, is subsequently placed into stove and toasts, baking temperature is 180 DEG C, baking time 40min.
Various performance tests are carried out to the sample after baking, assay is as shown in table 1.
The testing result of several various samples of table 1 compares
Claims (4)
1. a kind of Mg alloy surface imitates the process that copper imitates gold, comprise the following steps：
The first step：Lightization processing is carried out to Mg alloy surface；Then, the magnesium alloy after brightization processing is immersed 80 DEG C -100
DEG C passivating solution in carry out surface passivating treatment, the passivating solution is phosphate solution, and the pH value of passivating solution is 7-13；At passivation
In reason, magnesium alloy soak time in passivating solution is 2-10h；
The brightization processing is that Mg alloy surface is entered using at least one of shot-peening, grinding and polishing or wire drawing handling process
Row processing, to obtain the material of any surface finish；After processing, Mg alloy surface finish is 0.05-0.1 μm；
The mass-volume concentration of the phosphate solution is 0.6-3g/l, and solute is selected from disodium hydrogen phosphate, three in phosphate solution
At least one of sodium phosphate, tertiary sodium phosphate；
Second step：Mg alloy surface obtained by the first step is coated into hole sealing agent, then, heated baking carries out sealing pores；Baking
Temperature is less than or equal to 260 DEG C；
The hole sealing agent is the water-base resin of water white transparency；The water-base resin is selected from water-based acrylic resin, water soluble acrylic acid
One kind in epoxy resin, fluororesin, aqueous epoxy resins, Teflon varnish, epoxy resin varnish；
Hole sealing agent is coated by the way of dip-coating or spraying to Mg alloy surface；Carry out after sealing of hole, magnesium alloy toasted,
Baking temperature is 120-260 DEG C, and baking time is 10-30min.
2. a kind of Mg alloy surface according to claim 1 imitates the process that copper imitates gold, it is characterised in that：Phosphate is molten
When the solute of liquid selects orthophosphates disodium hydrogen phosphate, sodium tripolyphosphate or tertiary sodium phosphate exclusive use respectively, phosphate solution
Mass-volume concentration is respectively：
Disodium phosphate soln 1-3g/l
Sodium tripolyphosphate solution 0.6-2g/l
Trisodium phosphate solution 0.6-2g/l.
3. a kind of Mg alloy surface according to claim 1 imitates the process that copper imitates gold, it is characterised in that：The magnesium is closed
The one kind of gold in pure magnesium, Mg-Al-Zn systems, Mg-Zn-Zr systems alloy.
4. a kind of Mg alloy surface according to claim 3 imitates the process that copper imitates gold, it is characterised in that：After processing
Magnesium alloy, according to QJ/ZB4-85 standards, is measured using drop method to the corrosion resistance of passivating film, and the anti-corrosion time is more than 12 seconds；
Mould experiment, in 30 days, surface mildew percentage≤10% are carried out according to JB840-86 standards；
Magnesium alloy sample after processing is incubated after 1h in 220 DEG C of drying boxes and taken out, it is one that input, which is not higher than in 15 DEG C of water,
Circulation carries out thermal shock resistance test, and cycle-index is more than 20 times；
Damp heat test is carried out according to GJB150.9-1986 military equipment environmental tests method, 432h, outward appearance is unchanged；
Using neutral salt spray test and according to ASTM B117.97 standards, examine the decay resistance of magnesium alloy, 60h, outward appearance without
Change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181376.7A CN103924232B (en) | 2014-04-30 | 2014-04-30 | A kind of Mg alloy surface imitates the process that copper imitates gold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181376.7A CN103924232B (en) | 2014-04-30 | 2014-04-30 | A kind of Mg alloy surface imitates the process that copper imitates gold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924232A CN103924232A (en) | 2014-07-16 |
| CN103924232B true CN103924232B (en) | 2017-09-15 |
Family
ID=51142617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410181376.7A Expired - Fee Related CN103924232B (en) | 2014-04-30 | 2014-04-30 | A kind of Mg alloy surface imitates the process that copper imitates gold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103924232B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038507B (en) * | 2015-08-19 | 2017-07-28 | 宁波威霖住宅设施有限公司 | Imitate copper-plating technique in a kind of metalwork surface |
| CN107142470A (en) * | 2017-03-28 | 2017-09-08 | 哈尔滨工程大学 | Be conducive to improving the zinc cathode conversion film of corrosion stability of magnesium alloy and the preparation method of epoxy coating |
| CN111962053B (en) * | 2020-08-12 | 2023-01-10 | 广东东明新材科技有限公司 | Sealant for inhibiting white spots of AZ91D magnesium alloy and using method thereof |
| CN114574844A (en) * | 2022-02-23 | 2022-06-03 | 深圳市豪龙新材料技术有限公司 | Magnesium alloy surface composite film conversion treatment agent and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11264078A (en) * | 1998-03-18 | 1999-09-28 | Hitachi Ltd | Magnesium alloy member, its usage, its treatment solution and its production |
-
2014
- 2014-04-30 CN CN201410181376.7A patent/CN103924232B/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| AZ91D镁合金磷酸盐转化膜的制备及性能;高阳 等;《电镀与涂饰》;20101031;第29卷(第10期);第33页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103924232A (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103924232B (en) | A kind of Mg alloy surface imitates the process that copper imitates gold | |
| CN103184446B (en) | Forming solution for environment-friendly non-phosphate ceramic film and preparation method and application thereof | |
| CN104372323A (en) | Aluminum alloy chromium-free water-based passivator and preparation method thereof | |
| CN102070927A (en) | Water-based surface treatment agent for color coating pretreatment of galvanized plates | |
| CN101429661B (en) | Molybdate passivating liquid for continuous hot-dipping galvanizing steel plate | |
| CN101307448B (en) | Antiseptic treatment process for magnesium alloy section bar, especially for magnesium alloy tube | |
| CN110565148B (en) | Magnesium alloy black micro-arc oxidation film nano passivator and passivation method | |
| CN105951088A (en) | Low-chromium high-corrosion-resistance passivation solution and preparation method thereof | |
| CN105220138A (en) | The agent of a kind of Surface Rust of Weathering Steel stabilization treatment | |
| CN104294291A (en) | Steel workpiece comprehensive treatment agent and preparation method thereof | |
| SE458206B (en) | SET TO CREATE A CHEMICAL CONVERSION COATING OF YEARS AND / OR ZINC SURFACES, AND Aqueous, Acidic Zinc Phosphate Solution | |
| CN105951081B (en) | Environment-friendly type aluminium alloy non-chromium passivator and preparation method thereof | |
| CN102321881A (en) | Chromium-free passivation surface treatment process of aluminium material | |
| CN104451634B (en) | Aluminum and aluminum alloy passivation solution, preparation method and using method thereof | |
| CN101490311A (en) | Method and composition for forming a coloured coating on a metallic surface | |
| CN103834939A (en) | Aluminum alloy surface passivation liquid and processing method thereof | |
| CN103031550A (en) | Metallic workpiece pretreatment silane surface treatment agent and preparation method thereof | |
| CN103059625B (en) | A kind of protection against corrosion stainless steel plate surface silanization protective agent for surface treatment and preparation method thereof | |
| CN104328411A (en) | High-temperature metal passivation solution and preparation method thereof | |
| CN101818347A (en) | Treatment agent before low-temperature glazing technology and method for preparing products by using treatment agent | |
| CN109355647A (en) | A kind of four-in-one phosphating solution and preparation method thereof | |
| CN105441927A (en) | Chromate-free passivant for cold-roll steel sheet and galvanized steel sheet roller coating before coating and preparing method | |
| CN101831644A (en) | Chemical nickel plating method for pretreating magnesium alloy by chrome-free acid-wash activation one-step process | |
| CN104213126A (en) | Metal surface rust inhibitor and preparation method thereof | |
| CN102628167A (en) | Uniform phosphorizing technology for surface coating of steel tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170915 Termination date: 20180430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |