CN103628116A - Die casting surface treatment method and product thereof - Google Patents
Die casting surface treatment method and product thereof Download PDFInfo
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- CN103628116A CN103628116A CN201210310431.9A CN201210310431A CN103628116A CN 103628116 A CN103628116 A CN 103628116A CN 201210310431 A CN201210310431 A CN 201210310431A CN 103628116 A CN103628116 A CN 103628116A
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Abstract
The invention relates to a die casting surface treatment method and a product thereof. The method comprises: (1) die casting forming of a work-piece; (2) a surface pre-treatment; (3) cold spray coating; and (4) an electrophoresis coating treatment. The product is the product produced through treatments by using the method. According to the present invention, the cold spray coating technology and the electrophoresis coating surface treatment technology are combined to produce the high texture die casting finished product having the die casting surface metal effect on the defective die casting surface, the surface treatment method has characteristics of environmental protection process, simple process and substantial 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, metal texture effect, metal color penetration effect, and an antibacterial 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 die casting surface treatment method in the high texture outward appearance of needs is processed and products thereof.
[background technology]
Along with scientific and technological development, modern product also requires the outward appearance of fashion and abundant texture when pursuing function.When seeing the engineering plastics that meet the eye on every side, piano baking vanish, while having suddenly a full aluminum metal-like and stylishness, the scientific and technological product of feeling and depositing, it is not only admiration that this visual huge contrast is brought to people, but shock, this reason that namely product of Apple is favored by user as iPhone, MacBook Air etc., what their outward appearance was processed all employings is the one-body molded technology of aluminium punching press, 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 be firm, frivolous, can carry out anode dyeing and obtain enriching texture and color, 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, is 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 existing aluminium diecast alloy cannot carry out anode dyeing; Magnesium alloy chemical character is active, 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 retain the original texture of metal and can carry out high texture outward appearance and process.
[summary of the invention]
In view of above problem, the object of this invention is to provide a kind of die casting surface treatment method and products thereof, be applicable to produce on defective die casting surface the high-quality pressure-sensitive casting with reservation die casting surface metal effect.
In order to achieve the above object, the invention provides a kind of die casting surface treatment method, it comprises the following steps:
(1) die cast workpiece;
(2) surface preparation;
(3) cold spraying;
(4) electrophoretic painting is processed.
Preferably, in described step (1), the workpiece of die cast is aluminium diecasting or magnesium die casting.
Preferably, in described step (1), the workpiece surface of die cast has casting flaw.
Preferably, in described step (3), the treating processes of cold spraying is: the pretreated die casting of effects on surface carries out after cold spraying; On die casting surface, cold spraying last layer thickness is the uniform metallic substance of 20 μ m～60 μ m again.
Preferably, in described step (4), the coating that electrophoretic painting is used in processing is antibacterial electrophoretic paint.
Preferably, in described step (4), the coat-thickness that in electrophoretic painting processing, separate out on die casting surface is 8 μ m～20 μ m.
In addition, the present invention also provides a kind of die casting surface treated product, and it is the product producing after above-mentioned die casting surface treatment method is processed.
Compared to prior art, die casting surface treatment method of the present invention and products thereof, in conjunction with cold spraying and electrophoresis application technique, is produced on defective die casting surface and is had the high-quality pressure-sensitive casting that retains die casting surface metal effect.By this surface treatment method, the casting flaw that not only can overcome die casting surface obtains and to present the high texture product of metal effect, and make that die casting finished product is anticorrosion, antibacterial and the better perfection of outward appearance.Die casting surface treatment method of the present invention and products thereof has the following advantages:
(1) good corrosion resistance of this die casting finished product coating, densification is attractive in appearance, has the saturating color effect of metal concurrently;
(2) this die casting finished product has metal-like and antibacterial effect, can be widely used in and need on the product such as antibacterial, self-cleaning;
(3) 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 die casting surface treatment method of the present invention.
[embodiment]
For object of the present invention, method steps and function are had to further understanding, refer to Fig. 1, and be described in detail as follows.
In order to achieve the above object, the invention provides a kind of die casting surface treatment method, it comprises the following steps:
Step 101: provide a surface to have the die casting of minor defects;
Step 102: by polishing, mechanical workout is removed to above-mentioned die casting surface, and the surface after processing is passed through to degreasing, ultrasonic cleaning and oven dry again;
Step 103: polished again in the defective position, die casting surface after above-mentioned processing, then carry out cold spraying processing, repaired rejected region, finally on die casting surface, cold spraying last layer thickness is the uniform metallic substance of 20 μ m～60 μ m again, then to die casting polish, mechanical workout obtains uniform die casting surface;
Step 104: the die casting after cold spraying is immersed in the groove of filling electrophoretic paint as anode, in groove, separately establish corresponding negative electrode, direct current at the logical certain hour of two interpolars, in die casting surface electrophoresis last layer coating, this die casting utilizes the covering property of electrophoretic painting that its bent angle and the application of hole position is complete gradually.
Wherein, the die casting in described step 101 is aluminium diecasting or magnesium die casting.
Wherein, the coating that described step 104 electrophoretic painting is used in processing is antibacterial electrophoretic paint.
Wherein, the coat-thickness that in described step 104 electrophoretic painting processing, separate out on die casting surface is 8 μ m～20 μ m.
The present invention also provides a kind of die casting surface treated product, and it is the product producing after above-mentioned die casting surface treatment method is processed.
In surface treatment method of the present invention: cold spraying can obtain the die casting after surface-defect repairing uniform outward appearance and have etch-proof ability; Electrochemical treatment technology does not adopt traditional electroplating technology with problem of environmental pollution, and employing is the electrophoresis application technique of environmental protection, electrophoresis application technique demonstrates efficiently in actual applications, high-quality, safety and economic dispatch advantage, is subject to the attention of application circle of countries in the world.
Compared to prior art, die casting surface treatment method of the present invention and products thereof, in conjunction with the advantage of cold spraying and electrophoresis application technique, is produced on defective die casting surface and is had the high-quality pressure-sensitive casting that retains die casting surface metal effect.This surface treatment method processing procedure is simple, technique environmental protection, the casting flaw that not only can overcome die casting surface obtains the high texture product that presents metal effect, and the favorable product corrosion resistance after processing, fine and close attractive in appearance, have saturating color effect and the antibacterial effect of metal concurrently, can be used in widely and need on the product such as antibacterial, self-cleaning.
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 (7)
1. a die casting surface treatment method, is characterized in that, comprises the following steps:
(1) die cast workpiece;
(2) surface preparation;
(3) cold spraying;
(4) electrophoretic painting is processed.
2. die casting surface treatment method according to claim 1, is characterized in that, in described step (1), the workpiece of die cast is aluminium diecasting or magnesium die casting.
3. die casting surface treatment method according to claim 1, is characterized in that, in described step (1), the workpiece surface of die cast has casting flaw.
4. die casting surface treatment method according to claim 1, is characterized in that, the treating processes of described step (3) cold spraying is: the pretreated die casting of effects on surface carries out after cold spraying; On die casting surface, cold spraying last layer thickness is the uniform metallic substance of 20 μ m～60 μ m again.
5. die casting surface treatment method according to claim 1, is characterized in that, the coating that described step (4) electrophoretic painting is used in processing is antibacterial electrophoretic paint.
6. die casting surface treatment method according to claim 1, is characterized in that, the coat-thickness that in the processing of described step (4) electrophoretic painting, separate out on die casting surface is 8 μ m～20 μ m.
7. a die casting surface treated product, it is the product producing after die casting surface treatment method as described in any one in claim 1～6 is processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310431.9A CN103628116A (en) | 2012-08-29 | 2012-08-29 | Die casting surface treatment method and product thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210310431.9A CN103628116A (en) | 2012-08-29 | 2012-08-29 | Die casting surface treatment method and product thereof |
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| CN103628116A true CN103628116A (en) | 2014-03-12 |
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| CN201210310431.9A Pending CN103628116A (en) | 2012-08-29 | 2012-08-29 | Die casting surface treatment method and product thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689967A (en) * | 2015-02-04 | 2015-06-10 | 安徽永昌金属制品有限公司 | Zapon lacquer spraying technology for cast aluminium alloy part |
| CN104975318A (en) * | 2014-04-02 | 2015-10-14 | 汉达精密电子(昆山)有限公司 | Die casting treatment method and product thereof |
| CN105543938A (en) * | 2015-12-28 | 2016-05-04 | 宁波艾谱风机有限公司 | Surface treatment electrophoresis process for anti-oil range hood impeller |
| 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 |
| CN109371400A (en) * | 2018-10-22 | 2019-02-22 | 瑞安市精密铸造有限公司 | The processing method of engine support casting |
| 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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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975318A (en) * | 2014-04-02 | 2015-10-14 | 汉达精密电子(昆山)有限公司 | Die casting treatment method and product thereof |
| CN104689967A (en) * | 2015-02-04 | 2015-06-10 | 安徽永昌金属制品有限公司 | Zapon lacquer spraying technology for cast aluminium alloy part |
| CN105543938A (en) * | 2015-12-28 | 2016-05-04 | 宁波艾谱风机有限公司 | Surface treatment electrophoresis process for anti-oil range hood impeller |
| CN105543938B (en) * | 2015-12-28 | 2017-10-03 | 宁波艾谱风机有限公司 | A kind of anti-lampblack absorber impeller surface processing electrophoresis process for being stained with oil |
| 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 |
| CN109371400A (en) * | 2018-10-22 | 2019-02-22 | 瑞安市精密铸造有限公司 | The processing method of engine support casting |
| 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 |