CN103628108B - Die casting surface treatment method and products thereof - Google Patents
Die casting surface treatment method and products thereof Download PDFInfo
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- CN103628108B CN103628108B CN201210310432.3A CN201210310432A CN103628108B CN 103628108 B CN103628108 B CN 103628108B CN 201210310432 A CN201210310432 A CN 201210310432A CN 103628108 B CN103628108 B CN 103628108B
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Abstract
A kind of die casting surface treatment method and products thereof, the method comprises the following steps: (1) die cast workpiece; (2) surface preparation; (3) cold spraying; (4) differential arc oxidation processing. This product is the product producing after said method is processed. Die casting surface treatment method of the present invention and products thereof is in conjunction with cold spraying and Microarc Oxidation Surface Treatment technology, produce the high-quality pressure-sensitive casting with ceramic effect on defective die casting surface, this surface treatment method processing procedure environmental protection, technique promote the yield of die casting finished product simply, greatly, are applicable to industry and widely apply; Favorable product corrosion resistance after treatment, fine and close attractive in appearance, have ceramic texture effect concurrently.
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-quality at needsDie casting surface treatment method in the processing of sense outward appearance and products thereof.
[background technology]
Along with scientific and technological development, modern product also requires the outward appearance of fashion and enriches in pursuing functionTexture. In the time seeing the engineering plastics that meet the eye on every side, piano baking vanish, have suddenly a full aluminum metal-like withWhen stylishness, the scientific and technological product of feeling and deposit, it is not only frightened that this visual huge contrast bringsSigh, but shock, this namely the product of Apple favor as iPhone, MacBookAir etc. are subject to userReason, it is the one-body molded technology of aluminium punching press that their outward appearance is processed what all adopt, i.e. a kind of aluminium alloy that adoptsExtrusion plate, utilizes the integrated Machining Technology of Digit Control Machine Tool. The advantage of one-body molded technology is hardSolid, frivolous, can carry out anode dyeing and obtain enriching texture and color, but this technology processing procedure is tediously long, metalThe utilization rate low (only having 5% left and right) of material, manufacturing cost is high, and one-body molded technology is because being limited in additionCNC board scale, production capacity is limited, is not easy to be adopted by vast producer.
Die casting is the another kind of forming technique of widely applying, and compared with one-body molded technology, die casting has productionThe advantage such as efficiency is high, cost is low, can produce complex component, application range of products is wide and production capacity is abundant. SoAnd in the time that 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 existingPack alloy cannot carry out anode dyeing; Magnesium alloy chemical character is active, corrosion resistance is poor, must be by sprayThe methods such as paint or pad pasting are carried out exterior trimming parts surface treatment, but can make like this die casting lose metal-like;
(2) die casting has intrinsic, inevitable casting flaw, as pore, crackle, be mingled with, officePortion's depression and current mark etc., these defects make processing procedure below become difficulty, also make die casting finished product yield fall simultaneouslyLow.
In view of this, be necessary to provide a kind of die casting surface treatment method and products thereof in fact, to overcome die castingThe casting flaw on part surface, makes 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 die casting surface treatment method and products thereof,Be applicable to produce the product with high texture outward appearance on defective die casting surface.
In order to achieve the above object, the invention provides a kind of die casting surface treatment method, it comprises followingStep:
(1) die cast workpiece;
(2) surface preparation;
(3) cold spraying;
(4) differential arc oxidation processing.
Preferably, the workpiece of the die cast in described step (1) is aluminium diecasting or magnesium die casting.
Preferably, the surface of the work of the die cast in described step (1) has casting flaw.
Preferably, the processing procedure of described step (3) cold spraying is: the pretreated die casting of effects on surface entersAfter row cold spraying; On die casting surface, cold spraying last layer thickness is the uniform metal of 20 μ m～100 μ m againMaterial.
Preferably, described step (4) differential arc oxidation ceramic layer thickness after treatment is 5 μ m～20 μ m.
In addition, the present invention also provides a kind of die casting surface treated product, and it is above-mentioned die casting surface treatmentThe product that method produces after processing.
Compared to prior art, die casting surface treatment method of the present invention and products thereof is in conjunction with cold spraying and the differential of the arcOxidation technology, produces the high-quality pressure-sensitive casting with ceramic effect on defective die casting surface. LogicalCross this surface treatment method, the casting flaw that not only can overcome die casting surface obtains and presents ceramic effectHigh texture product, and make die casting finished product anticorrosion and use perfection with better function. Die casting of the present invention surfaceProcessing method and products thereof has the following advantages:
(1) the coating good corrosion resistance of this die casting finished product, fine and close attractive in appearance, have ceramic texture effect 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,Being applicable to industry widely applies.
[brief description of the drawings]
Fig. 1 illustrates the flow chart of steps of die casting surface treatment method of the present invention.
[detailed description of the invention]
For object of the present invention, method step and function are had to further understanding, refer to Fig. 1, and in detailBe described as follows.
In order to achieve the above object, the invention provides a kind of die casting surface treatment method, it comprises following stepRapid:
Step 101: provide a surface to have the die casting of light defects;
Step 102: by polishing, machining is removed, by table after treatment to above-mentioned die casting surfaceFace passes through degreasing, Ultrasonic Cleaning and oven dry again;
Step 103: polished again in defective position, above-mentioned die casting after treatment surface, then carry outCold spraying processing, has repaired rejected region, and finally on die casting surface, cold spraying last layer thickness is 20 againThe uniform metal material of μ m～100 μ m, by the die casting after above-mentioned cold spraying polish, machining obtainsTo uniform die casting surface;
Step 104: the die casting after cold spraying is adopted to differential arc oxidation processing, by special differential arc oxidation electricitySource applies voltage on die casting, the metal on die casting surface and electrolyte solution is interacted, in die castingPart surface forms micro-arc discharge, under the effect of the factor such as high temperature, electric field, forms a pottery on die casting surfaceEnamel coating.
Wherein, the die casting in described step 101 is aluminium diecasting or magnesium die casting.
Wherein, in described step 104, differential arc oxidation ceramic layer thickness after treatment is 5 μ m～20 μ m.
The present invention also provides a kind of die casting surface treated product, and it is above-mentioned die casting surface treatment method placeThe product producing after reason.
In processing method of the present invention, outside cold spraying can obtain the die casting after surface-defect repairing uniformlySee and there is etch-proof ability, differential arc oxidization technique is simple with its technique, efficiency is high, pollution-free, locateReason ability and the feature such as strong, developed rapidly.
Compared to prior art, die casting surface treatment method of the present invention and products thereof is in conjunction with cold spraying and the differential of the arcOxidation technology, produces the high-quality pressure-sensitive casting with ceramic effect on defective die casting surface. ShouldSurface treatment method processing procedure is simple, technique environmental protection, can greatly promote the yield of die casting finished product, is applicable to industry largeAmount application, and favorable product corrosion resistance after treatment, densification is attractive in appearance, has the effect of high ceramic texture concurrently,Can be widely used on the exterior trimming parts of the high texture of various product demands.
It is pointed out that and the invention is not restricted to above-mentioned embodiment, any those skilled in the artAny simple modification, equivalent variations and the modification above-described embodiment done based on technical solution of the present invention, allFall within the scope of protection of the present invention.
Claims (5)
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) differential arc oxidation processing, the thickness that differential arc oxidation is processed the ceramic layer of rear die casting surface formation is 5μm～20μm。
2. die casting surface treatment method according to claim 1, is characterized in that, described step (1)The workpiece of middle die cast is aluminium diecasting or magnesium die casting.
3. die casting surface treatment method according to claim 1, is characterized in that, described step (1)The surface of the work of middle die cast has casting flaw.
4. die casting surface treatment method according to claim 1, is characterized in that, described step (3)The processing procedure of cold spraying is: the pretreated die casting of effects on surface carries out after cold spraying; On die casting surfaceOn again cold spraying last layer thickness be the uniform metal material of 20 μ m～100 μ m.
5. a die casting surface treated product, it is the die casting as described in any one in claim 1～4The product that part surface treatment method produces after processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310432.3A CN103628108B (en) | 2012-08-29 | 2012-08-29 | Die casting surface treatment method and products thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310432.3A CN103628108B (en) | 2012-08-29 | 2012-08-29 | Die casting surface treatment method and products thereof |
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| Publication Number | Publication Date |
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| CN103628108A CN103628108A (en) | 2014-03-12 |
| CN103628108B true CN103628108B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210310432.3A Active CN103628108B (en) | 2012-08-29 | 2012-08-29 | Die casting surface treatment method and products thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805485A (en) * | 2015-04-07 | 2015-07-29 | 广东欧珀移动通信有限公司 | Surface treatment method for die-cast aluminum alloy |
| CN105926015A (en) * | 2016-05-12 | 2016-09-07 | 安徽纯启动力机械有限公司 | Electrochemical surface hardening treatment process of aluminum alloy die casting |
| CN111172537B (en) * | 2017-11-23 | 2021-11-02 | 中国兵器工业第五九研究所 | Preparation method of stainless steel surface coating with excellent wear resistance and corrosion resistance |
| CN115233270A (en) * | 2022-08-22 | 2022-10-25 | 汕头市铭泰易拉盖有限公司 | Metal piece surface treatment process and device combining cold spraying and micro-arc oxidation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002322567A (en) * | 2001-04-24 | 2002-11-08 | Chiyoda Chemical Kk | Surface treatment method for casting and cast article |
| CN102154639A (en) * | 2011-03-10 | 2011-08-17 | 上海交通大学 | Aluminum-particle-based method for preparing coating by cold spray deposition |
-
2012
- 2012-08-29 CN CN201210310432.3A patent/CN103628108B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002322567A (en) * | 2001-04-24 | 2002-11-08 | Chiyoda Chemical Kk | Surface treatment method for casting and cast article |
| CN102154639A (en) * | 2011-03-10 | 2011-08-17 | 上海交通大学 | Aluminum-particle-based method for preparing coating by cold spray deposition |
Non-Patent Citations (1)
| Title |
|---|
| 镁合金铸件表面处理技术现状;李宝东等;《材料保护》;20020430;第35卷(第4期);第1-3页 * |
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| CN103628108A (en) | 2014-03-12 |
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