CN103628059A - High texture magnesium alloy surface treatment method and product thereof - Google Patents
High texture magnesium alloy surface treatment method and product thereof Download PDFInfo
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- CN103628059A CN103628059A CN201210310422.XA CN201210310422A CN103628059A CN 103628059 A CN103628059 A CN 103628059A CN 201210310422 A CN201210310422 A CN 201210310422A CN 103628059 A CN103628059 A CN 103628059A
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Abstract
The invention relates to a high texture magnesium alloy surface treatment method and a product thereof. The method comprises: (1) die casting forming of a magnesium alloy work-piece; (2) a surface pre-treatment; (3) a formation treatment; (4) cold spray coating; and (5) an electrophoresis coating treatment. The product is the product produced through treatments by using the method. According to the present invention, the product with the high texture appearance can be produced on the magnesium alloy die casting surface, the method has characteristics of environmental protection process, simple process and substantial magnesium alloy die casting finished product yield increase, and is suitable for large scale industrial application, and the treated product has characteristics of good corrosion resistance, compactness, beautiful appearance, changeable color, metal effect and metal color penetration effect.
Description
[technical field]
The present invention relates to a kind of die casting surface treatment method and products thereof, be specifically related to a kind of high texture surface treatment method of Mg alloy and products thereof.
[background technology]
Modern product also requires the outward appearance of fashion and abundant texture when pursuing function, the product of Apple is as iPhone, MacBook Air etc. all adopts one-body molded (Unibody processing procedure), be the aluminium alloy extruded sheet material of a kind of employing, utilize the integrated Machining Technology of numerically-controlled machine, the advantage of one-body molded technology is firm, frivolous, anode dyeing be can carry out and texture and color obtained enriching, but this technology processing procedure is tediously long, the utilization ratio low (only having 5% left and right) of metallic substance, manufacturing cost is high, one-body molded technology is because being limited to CNC board scale in addition, production capacity is limited, be not easy to be adopted by vast producer.
The advantages such as die casting is the another kind of forming technique of widely applying, and compares with one-body molded technology, and die casting has that production efficiency is high, cost is low, can produce complex component, application range of products is wide and production capacity is abundant.Yet when die casting is applied to appearance ornamental pieces, mainly there are two problems:
(1) alloy for die casting material has just determined that die casting can not carry out high texture surface treatment, as active in magnesium alloy chemical character, solidity to corrosion is poor, must be by spraying paint or the method such as pad pasting is carried out exterior trimming parts surface treatment, however can make like this die casting lose metal-like;
(2) die casting has intrinsic, inevitable casting flaw, as pore, crackle, be mingled with, local dent and current mark etc., these defects make the processing procedure below difficulty that becomes, and also make die casting finished product yield reduce simultaneously.
In view of this, be necessary to provide a kind of die casting surface treatment method and products thereof in fact, to overcome the casting flaw on die casting surface, make die casting surface produce the product with high texture outward appearance.
[summary of the invention]
In view of above problem, the object of this invention is to provide a kind of high texture surface treatment method of Mg alloy and products thereof, be applicable to produce the product with high texture outward appearance on magnesium alloy die casting surface.
In order to achieve the above object, the invention provides a kind of high texture surface treatment method of Mg alloy and products thereof, it comprises the following steps:
(1) die cast magnesium alloy workpiece;
(2) surface preparation;
(3) change into processing;
(4) cold spraying;
(5) electrophoretic painting is processed.
Preferably, in described step (1), the magnesium alloy work-piece surface of die cast has casting flaw.
Preferably, in described step (3), the epithelium color changing in processing is light color.
Preferably, in described step (4), the treating processes of cold spraying is: the magnesium alloy die casting changing into after processing is carried out after cold spraying processing; On magnesium alloy die casting surface, cold spraying last layer thickness is the uniform metallic substance of 20 μ m～50 μ m again.
Preferably, in described step (5), the electrophoretic paint in electrophoretic painting can be selected versicolor coating.
Preferably, in described step (5), the volts DS in electrophoretic painting is 20V～45V, and painting ETL estimated time of loading is 30s～120s.
Preferably, in described step (5), the coat-thickness that in electrophoretic painting, magnesium alloy die casting is separated out is 8 μ m～15 μ m.
Preferably, described step (5) afterwards, also comprises step (6): the magnesium alloy die casting after above-mentioned electrophoretic painting is processed takes out and carries out baking processing.
Preferably, in described step (6), storing temperature is 130 ℃～150 ℃, and baking time is 30min.
In addition, the present invention also provides a kind of high texture Mg alloy surface treating product, and it is the product producing after above-mentioned high texture surface treatment method of Mg alloy is processed.
Compared to prior art, the present invention produces the product with high texture outward appearance on magnesium alloy die casting surface, by this surface treatment method, the casting flaw that not only can overcome magnesium alloy die casting surface obtains high texture product, and make the anticorrosion of product and use perfection with better function, be widely used on the exterior trimming parts of the high texture of various demands.High texture surface treatment method of Mg alloy of the present invention and products thereof has the following advantages:
(1) this magnesium alloy pressure-casting favorable product corrosion resistance, fine and close attractive in appearance, color-variable, have the saturating color effect of metal effect and metal concurrently;
(2) simple, the technique environmental protection of the processing procedure of this surface treatment method, die casting finished product yield is high, production is high, is applicable to industry and widely applies.
[accompanying drawing explanation]
Fig. 1 illustrates the flow chart of steps of the high texture surface treatment method of Mg alloy of the present invention.
[embodiment]
In order to achieve the above object, the invention provides a kind of high texture surface treatment method of Mg alloy, it comprises the following steps:
Step 101: provide a surface to have the magnesium alloy die casting of minor defects;
Step 102: by polishing, mechanical workout is removed to above-mentioned magnesium alloy die casting surface, and the surface after processing is passed through to degreasing, ultrasonic cleaning and oven dry again;
Step 103: the magnesium alloy die casting after above-mentioned processing is carried out to epithelium processing, and wherein epithelium color is selected superficial color;
Step 104: polish again in the defective position, magnesium alloy die casting surface after epithelium is processed, then carry out cold spraying processing, repaired rejected region, finally on magnesium alloy die casting surface, cold spraying last layer thickness is the uniform metallic substance of 20 μ m～50 μ m again, by the die casting after above-mentioned cold spraying polish, mechanical workout obtains uniform die casting surface;
Step 105: the magnesium alloy die casting after cold spraying is immersed in the groove of filling electrophoretic paint as anode, separately establishes corresponding stainless steel cathode in groove, at the direct current of the logical certain hour of two interpolars, in magnesium alloy die casting surface electrophoresis last layer coating;
Step 106: the magnesium alloy die casting after above-mentioned electrophoretic painting is processed takes out and carries out baking processing.
Wherein, the electrophoretic paint in described step 105 can be selected versicolor coating as required.
Wherein, the volts DS in described step 105 electrophoretic painting is 20V～45V, and the treatment time is 30s～120s.
Wherein, the coat-thickness that in described step 105 electrophoretic painting, magnesium alloy die casting is separated out is 8 μ m～15 μ m.
Wherein, the storing temperature of described step 106 is 130 ℃～150 ℃, and baking time is 30min.
The present invention also provides a kind of high texture Mg alloy surface treating product, and it is the product producing after above-mentioned high texture surface treatment method of Mg alloy is processed.
Product after above-mentioned processing is carried out to correlated performance test, cut into the sample of standard by ASTM standard, by ASTMB117 standard, sample is carried out to neutral salt spray test, under the condition of spraying 72h, surface test result is by more than 9 grades; Sample is carried out to fixed temperature and humidity test, and it is to keep 336h under 50 ℃, the humidity condition that is 95% that sample is placed on to temperature, and result is for by test.
The high texture surface treatment method of Mg alloy of the present invention and product, by changing into the effect improved magnesium alloy die casting erosion resistance, application adherence of processing; By cold spraying, process and the die casting after surface-defect repairing can be obtained to uniform outward appearance and there is etch-proof ability; Utilize electrophoretic painting process to adopt the electrophoretic paint of different colours can obtain versicolor outward appearance, and processing procedure environmental protection is simple, demonstrates in actual applications efficient, high-quality, safety and economic dispatch advantage.
Compared to prior art, the high texture surface treatment method of Mg alloy of the present invention and product are produced the magnesium alloy pressure-casting product with high texture outward appearance on magnesium alloy die casting surface, this surface treatment method processing procedure is simple, technique environmental protection, greatly promote the yield of magnesium alloy pressure-casting finished product, be applicable to industry and widely apply.Favorable product corrosion resistance after processing, densification is attractive in appearance, color can be changeable, has the saturating color effect of metal concurrently.
It is pointed out that and the invention is not restricted to above-mentioned embodiment, any simple modification, equivalent variations and modification that any those skilled in the art do above-described embodiment based on technical solution of the present invention, all fall within the scope of protection of the present invention.
Claims (10)
1. a high texture surface treatment method of Mg alloy, is characterized in that, comprises the following steps:
(1) die cast magnesium alloy workpiece;
(2) surface preparation;
(3) change into processing;
(4) cold spraying;
(5) electrophoretic painting is processed.
2. high texture surface treatment method of Mg alloy according to claim 1, is characterized in that, in described step (1), the magnesium alloy work-piece surface of this die cast has casting flaw.
3. high texture surface treatment method of Mg alloy according to claim 1, is characterized in that, in described step (3), this color that changes into epithelium in processing is light color.
4. high texture surface treatment method of Mg alloy according to claim 1, is characterized in that, in described step (4), the treating processes of this cold spraying is: the magnesium alloy die casting changing into after processing is carried out after cold spraying; On magnesium alloy die casting surface, cold spraying last layer thickness is the uniform metallic substance of 20 μ m～50 μ m again.
5. high texture surface treatment method of Mg alloy according to claim 1, is characterized in that, in described step (5), the electrophoretic paint of this electrophoretic painting can be selected versicolor coating.
6. high texture surface treatment method of Mg alloy according to claim 1, is characterized in that, in described step (5), the volts DS of this electrophoretic painting is 20V～45V, and painting ETL estimated time of loading is 30s～120s.
7. high texture surface treatment method of Mg alloy according to claim 1, is characterized in that, in described step (5), the coat-thickness that in this electrophoretic painting, magnesium alloy die casting is separated out is 8 μ m～15 μ m.
8. high texture surface treatment method of Mg alloy according to claim 1, is characterized in that, described step (5) afterwards, also comprises step (6): the magnesium alloy die casting after above-mentioned electrophoretic painting is processed takes out and carries out baking processing.
9. high texture surface treatment method of Mg alloy according to claim 5, is characterized in that, in described step (6), storing temperature is 130 ℃～150 ℃, and baking time is 30min.
10. a high texture Mg alloy surface treating product, it is the product producing after high texture surface treatment method of Mg alloy as described in any one in claim 1～9 is processed.
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| CN201210310422.XA CN103628059A (en) | 2012-08-29 | 2012-08-29 | High texture magnesium alloy surface treatment method and product thereof |
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| CN201210310422.XA CN103628059A (en) | 2012-08-29 | 2012-08-29 | High texture magnesium alloy surface treatment method and product thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088739A (en) * | 2017-05-10 | 2017-08-25 | 苏州胜利精密制造科技股份有限公司 | A kind of processing method of electronic product components |
| CN108301031A (en) * | 2017-07-04 | 2018-07-20 | 东莞宜安科技股份有限公司 | A kind of die casting anti-oxidation method |
| CN109604935A (en) * | 2018-10-29 | 2019-04-12 | 昆山风雷益铝业有限公司 | A kind of production and processing method of aluminium sheet |
| CN110923784A (en) * | 2019-11-29 | 2020-03-27 | 江苏竣昌科技有限公司 | Surface treatment method of magnesium alloy die casting |
| CN112496691A (en) * | 2019-09-16 | 2021-03-16 | 华硕电脑股份有限公司 | Metal shell surface treatment method |
| CN112643013A (en) * | 2020-12-02 | 2021-04-13 | 东莞仁海科技股份有限公司 | Die casting surface anodic treatment process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088739A (en) * | 2017-05-10 | 2017-08-25 | 苏州胜利精密制造科技股份有限公司 | A kind of processing method of electronic product components |
| CN107088739B (en) * | 2017-05-10 | 2021-07-02 | 苏州胜利精密制造科技股份有限公司 | Processing method of electronic product component |
| CN108301031A (en) * | 2017-07-04 | 2018-07-20 | 东莞宜安科技股份有限公司 | A kind of die casting anti-oxidation method |
| CN109604935A (en) * | 2018-10-29 | 2019-04-12 | 昆山风雷益铝业有限公司 | A kind of production and processing method of aluminium sheet |
| CN112496691A (en) * | 2019-09-16 | 2021-03-16 | 华硕电脑股份有限公司 | Metal shell surface treatment method |
| CN110923784A (en) * | 2019-11-29 | 2020-03-27 | 江苏竣昌科技有限公司 | Surface treatment method of magnesium alloy die casting |
| CN112643013A (en) * | 2020-12-02 | 2021-04-13 | 东莞仁海科技股份有限公司 | Die casting surface anodic treatment process |
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Application publication date: 20140312 |