CN106808372B - A kind of aluminum alloy surface mechanical processing method - Google Patents
A kind of aluminum alloy surface mechanical processing method Download PDFInfo
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- CN106808372B CN106808372B CN201611214431.3A CN201611214431A CN106808372B CN 106808372 B CN106808372 B CN 106808372B CN 201611214431 A CN201611214431 A CN 201611214431A CN 106808372 B CN106808372 B CN 106808372B
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- aluminum alloy
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- alloy surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention discloses a kind of aluminum alloy surface mechanical processing method, including following operating procedure: (1) carrying out blasting treatment to aluminum alloy surface, the outlet pressure of sand-blasting machine is 0.55-0.65MPa, distance of the nozzle away from sample is 20-25mm, the sand that wherein sand-blasting machine sprays is mixed sand, and mixed sand is made of the component of following parts by weight: 12-16 parts of boron carbide, 36-40 parts of aluminium oxide, 15-17 parts of HALITUM PURPUREUM, 8-10 parts of calcium oxide；(2) grinding process is carried out to aluminum alloy surface, wherein polishing liquid is made of the component of following parts by weight: Chlorodimethyl is silane 10-15 parts pungent, 8-10 parts of methyl dibenzyl silanol, 15-20 parts of ethylene glycol, 18-21 parts of polypropylene glycol, 19-21 parts of zinc chloride, 150-200 parts of water.The aluminum alloy machinery processing method that the present invention uses, it is low in cost, it is small to environment, operator's harm, and treated aluminum alloy surface applies film-substrate binding strength and is significantly higher than conventional pretreatment of aluminum alloy technique, greatly improves the quality of Al-alloy products.
Description
Technical field
The invention belongs to aluminium alloy preparation fields, and in particular to a kind of aluminum alloy surface mechanical processing method.
Background technique
With metal-processing industry, the rapid development of automobile industry, electronics industry, to various metal products, electronic product with
And the quality of auto parts and components has higher requirement, by long-term it was verified that some simple, easy pre-treatment sides
Method is no longer satisfied the basic demand of intermetallic composite coating and coating.Standard, scientific pre-treatment production technology is only used,
Al-alloy products could be made to form the phosphate layer and protecting film of one layer of high-quality, to meet intermetallic composite coating and painting treatment
Quality requirement.Therefore the metal pre-treatment product for selecting low cost, low energy consumption, high-quality is that enterprise guarantees coating quality and prevents
An important factor for protecting whether quality is stablized.
Summary of the invention
The object of the present invention is to provide a kind of scientific and effective standardization aluminum alloy surface mechanical processing methods.
The present invention is achieved by the following technical solutions.
A kind of aluminum alloy surface mechanical processing method, including following operating procedure:
(1) blasting treatment is carried out to aluminum alloy surface, the outlet pressure of sand-blasting machine is 0.55-0.65MPa, and nozzle is away from sample
Distance be 20-25mm, the sand that wherein sand-blasting machine sprays is mixed sand, and mixed sand is made of the component of following parts by weight: carbonization
12-16 parts of boron, 36-40 parts of aluminium oxide, 15-17 parts of HALITUM PURPUREUM, 8-10 parts of calcium oxide；
(2) grinding process is carried out to aluminum alloy surface, wherein polishing liquid is made of the component of following parts by weight: Chlorodimethyl
Pungent silane 10-15 parts, 8-10 parts of methyl dibenzyl silanol, 15-20 parts of ethylene glycol, 18-21 parts of polypropylene glycol, zinc chloride 19-21
Part, 150-200 parts of water.
Specifically, the average particle size of the mixed sand each component in above-mentioned steps (1) are as follows: boron carbide 100-120 mesh, aluminium oxide
60-80 mesh, HALITUM PURPUREUM 40-50 mesh, calcium oxide 60-70 mesh.
Specifically, the polishing liquid in above-mentioned steps (2) is made of following methods: ethylene glycol, polypropylene glycol and water are mixed
After conjunction, after stirring 20-25min using the revolving speed of 300r/min, the pungent silane of Chlorodimethyl, methyl dibenzyl are successively added thereto
Silanol increases mixing speed to 500r/min and zinc chloride is added thereto after persistently stirring 15min, using turning for 500r/min
After speed stirring 5min, using ultrasonic treatment, polishing liquid is made.
From the above technical scheme, it can be seen that the beneficial effects of the present invention are:
The aluminum alloy machinery processing method that the present invention uses, it is low in cost, it is small to environment, operator's harm, and locate
Aluminum alloy surface after reason applies film-substrate binding strength and is significantly higher than conventional pretreatment of aluminum alloy technique, greatly improves aluminium alloy
The quality of product.Wherein, mixed sand provided by the invention not only has good derusting, deoiling effect, but also treated aluminium
Alloy surface residual stress is uniformly distributed in aluminum alloy surface, and the value of residual stress is larger, significantly higher than bauxite,
The residual stress of aluminum oxide sand and quartz sand treated aluminum alloy surface；Boron carbide and HALITUM PURPUREUM can to a certain extent
The roughness of aluminum alloy surface is promoted, and then increases the contact area of coating and aluminium alloy, improves the combination of coating and aluminium alloy
Intensity；Polishing liquid provided by the invention, the pungent silane of Chlorodimethyl and methyl dibenzyl silanol synergistic effect, can be in aluminium alloy
In bruting process, more, more uniform activated centre is formed in aluminum alloy surface, these activated centres be conducive to coating with
Aluminum alloy surface combines, to increase coating to the adhesive force of aluminium alloy, and increases coating and is distributed in aluminum alloy surface
Consistency and the uniformity, greatly improve the quality of aluminium alloy.
Specific embodiment
Following embodiment is used to illustrate the present invention, but cannot be used to limit the scope of the invention, reality used in the examples
The condition of applying can be for further adjustments according to the condition of producer, and unaccounted implementation condition is usually conventional laboratory conditions.
Embodiment 1
A kind of aluminum alloy surface mechanical processing method, including following operating procedure:
(1) blasting treatment carried out to aluminum alloy surface, the outlet pressure of sand-blasting machine is 0.55MPa, nozzle away from sample away from
From for 20mm, the sand that wherein sand-blasting machine sprays is mixed sand, and mixed sand is made of the component of following parts by weight: 12 parts of boron carbide,
36 parts of aluminium oxide, 15 parts of HALITUM PURPUREUM, 8 parts of calcium oxide；
(2) grinding process is carried out to aluminum alloy surface, wherein polishing liquid is made of the component of following parts by weight: Chlorodimethyl
10 parts of pungent silane, 8 parts of methyl dibenzyl silanol, 15 parts of ethylene glycol, 18 parts of polypropylene glycol, 19 parts of zinc chloride, 150 parts of water.
Specifically, the average particle size of the mixed sand each component in above-mentioned steps (1) are as follows: 100 mesh of boron carbide, aluminium oxide 60
Mesh, 40 mesh of HALITUM PURPUREUM, 60 mesh of calcium oxide.
Specifically, the polishing liquid in above-mentioned steps (2) is made of following methods: ethylene glycol, polypropylene glycol and water are mixed
After conjunction, after stirring 20min using the revolving speed of 300r/min, the pungent silane of Chlorodimethyl, methyl dibenzyl silicon are successively added thereto
Alcohol increases mixing speed to 500r/min and zinc chloride is added thereto, using the revolving speed of 500r/min after persistently stirring 15min
After stirring 5min, using ultrasonic treatment, polishing liquid is made.
Embodiment 2
A kind of aluminum alloy surface mechanical processing method, including following operating procedure:
(1) blasting treatment carried out to aluminum alloy surface, the outlet pressure of sand-blasting machine is 0.60MPa, nozzle away from sample away from
From for 23mm, the sand that wherein sand-blasting machine sprays is mixed sand, and mixed sand is made of the component of following parts by weight: 14 parts of boron carbide,
38 parts of aluminium oxide, 16 parts of HALITUM PURPUREUM, 9 parts of calcium oxide；
(2) grinding process is carried out to aluminum alloy surface, wherein polishing liquid is made of the component of following parts by weight: Chlorodimethyl
13 parts of pungent silane, 9 parts of methyl dibenzyl silanol, 17 parts of ethylene glycol, 20 parts of polypropylene glycol, 20 parts of zinc chloride, 170 parts of water.
Specifically, the average particle size of the mixed sand each component in above-mentioned steps (1) are as follows: 110 mesh of boron carbide, aluminium oxide 70
Mesh, 45 mesh of HALITUM PURPUREUM, 65 mesh of calcium oxide.
Specifically, the polishing liquid in above-mentioned steps (2) is made of following methods: ethylene glycol, polypropylene glycol and water are mixed
After conjunction, after stirring 23min using the revolving speed of 300r/min, the pungent silane of Chlorodimethyl, methyl dibenzyl silicon are successively added thereto
Alcohol increases mixing speed to 500r/min and zinc chloride is added thereto, using the revolving speed of 500r/min after persistently stirring 15min
After stirring 5min, using ultrasonic treatment, polishing liquid is made.
Embodiment 3
A kind of aluminum alloy surface mechanical processing method, including following operating procedure:
(1) blasting treatment carried out to aluminum alloy surface, the outlet pressure of sand-blasting machine is 0.65MPa, nozzle away from sample away from
From for 25mm, the sand that wherein sand-blasting machine sprays is mixed sand, and mixed sand is made of the component of following parts by weight: 16 parts of boron carbide,
40 parts of aluminium oxide, 17 parts of HALITUM PURPUREUM, 10 parts of calcium oxide；
(2) grinding process is carried out to aluminum alloy surface, wherein polishing liquid is made of the component of following parts by weight: Chlorodimethyl
15 parts of pungent silane, 10 parts of methyl dibenzyl silanol, 20 parts of ethylene glycol, 21 parts of polypropylene glycol, 21 parts of zinc chloride, 200 parts of water.
Specifically, the average particle size of the mixed sand each component in above-mentioned steps (1) are as follows: 120 mesh of boron carbide, aluminium oxide 80
Mesh, 50 mesh of HALITUM PURPUREUM, 70 mesh of calcium oxide.
Specifically, the polishing liquid in above-mentioned steps (2) is made of following methods: ethylene glycol, polypropylene glycol and water are mixed
After conjunction, after stirring 25min using the revolving speed of 300r/min, the pungent silane of Chlorodimethyl, methyl dibenzyl silicon are successively added thereto
Alcohol increases mixing speed to 500r/min and zinc chloride is added thereto, using the revolving speed of 500r/min after persistently stirring 15min
After stirring 5min, using ultrasonic treatment, polishing liquid is made.
Comparative example 1
Mixed sand in 1 peening step of embodiment is substituted for bauxite, the granularity of bauxite is 50 mesh, remaining step
Suddenly identical with embodiment 1.
Comparative example 2
It is dedicated that polishing liquid in embodiment 2 is substituted for the Hubei aluminium alloy that freely easypro intermetallic composite coating auxiliary agent Co., Ltd produces
Oil emulsion, remaining step are identical with embodiment 2.
Surface pretreatment is carried out with aluminium alloy of the method for embodiment 1,2,3 and comparative example 1,2 to same material respectively, it
It is painted afterwards using identical technique and raw material to the aluminium alloy after pre-treatment, the mechanical property of testing coating, test result
It is as shown in table 1:
1 coating tensile shear strength result of table
| Project | Tensile shear strength (MPa) | Maximum corrosion depth (μm) | Paint film is apparent |
| Embodiment 1 | 18.9 | 5 | Bubble-free |
| Embodiment 2 | 19.1 | 3 | Bubble-free |
| Embodiment 3 | 19.5 | 3 | Bubble-free |
| Comparative example 1 | 9.2 | 26 | Slightly bubble |
| Comparative example 1 | 10.6 | 21 | Slightly bubble |
Huey test method: aluminum alloy specimen obtained in selection example and comparative example, specimen size 45mm
× 26mm × 5mm, is dipped in 3%NaCl+10mlHCl+1LH entirely2In O solution, surface to volume ratio 1:20 is hung in 35 ± 1 DEG C of waters
It is static corrosion 24 hours, after cleaning-drying, take section grinding and polishing, observe under the microscope, all of above experimental arrangement according to
The quasi- GB/T7998-2005 of sighting target is carried out.As shown in Table 1, it using aluminum alloy surface pre-treating method of the present invention, can effectively be promoted
The adhesive force of paint film and the corrosion resistance of paint film after aluminium alloy japanning greatly improve the quality of aluminium alloy obtained.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (3)
1. a kind of aluminum alloy surface mechanical processing method, which is characterized in that including following operating procedure:
(1) blasting treatment carried out to aluminum alloy surface, the outlet pressure of sand-blasting machine is 0.55-0.65MPa, nozzle away from sample away from
From for 20-25mm, the sand that wherein sand-blasting machine sprays is mixed sand, and mixed sand is made of the component of following parts by weight: boron carbide 12-
16 parts, 36-40 parts of aluminium oxide, 15-17 parts of HALITUM PURPUREUM, 8-10 parts of calcium oxide；
(2) grinding process is carried out to aluminum alloy surface, wherein polishing liquid is made of the component of following parts by weight: the pungent silicon of Chlorodimethyl
10-15 parts of alkane, 8-10 parts of methyl dibenzyl silanol, 15-20 parts of ethylene glycol, 18-21 parts of polypropylene glycol, 19-21 parts of zinc chloride, water
150-200 parts.
2. a kind of aluminum alloy surface mechanical processing method according to claim 1, which is characterized in that in step (1)
The average particle size of mixed sand each component are as follows: boron carbide 100-120 mesh, aluminium oxide 60-80 mesh, HALITUM PURPUREUM 40-50 mesh, calcium oxide
60-70 mesh.
3. a kind of aluminum alloy surface mechanical processing method according to claim 1, which is characterized in that in step (2)
Polishing liquid is made of following methods: after ethylene glycol, polypropylene glycol are mixed with water, stirring 20- using the revolving speed of 300r/min
After 25min, the pungent silane of Chlorodimethyl, methyl dibenzyl silanol are successively added thereto, increases mixing speed to 500r/min, holds
After continuous stirring 15min, zinc chloride is added thereto, after stirring 5min using the revolving speed of 500r/min, using ultrasonic treatment, is made
Polish liquid.
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| CN201611214431.3A CN106808372B (en) | 2016-12-26 | 2016-12-26 | A kind of aluminum alloy surface mechanical processing method |
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| CN201611214431.3A CN106808372B (en) | 2016-12-26 | 2016-12-26 | A kind of aluminum alloy surface mechanical processing method |
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| CN106808372A CN106808372A (en) | 2017-06-09 |
| CN106808372B true CN106808372B (en) | 2019-04-12 |
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| CN108816710A (en) * | 2018-06-29 | 2018-11-16 | 江门浦泰轨道交通设备有限公司 | A kind of manufacturing method of internal plastic coating insulation penetration pipe |
Citations (6)
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|---|---|---|---|---|
| EP0818274A1 (en) * | 1996-07-11 | 1998-01-14 | Pechiney Electrometallurgie | Surface treatment of aluminium alloys by projection of abrasive powder under pressure |
| CN102586781A (en) * | 2012-02-06 | 2012-07-18 | 广东步步高电子工业有限公司 | Aluminium alloy surface treatment method |
| 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 |
| CN105364637A (en) * | 2015-09-29 | 2016-03-02 | 广东欧珀移动通信有限公司 | Surface treatment method of aluminum alloy shell |
| CN105908203A (en) * | 2016-05-31 | 2016-08-31 | 刘洪建 | Surface treatment process for aluminum alloy |
| CN105925977A (en) * | 2016-04-27 | 2016-09-07 | 贵州航天风华精密设备有限公司 | Surface treatment method of aluminum alloy component |
-
2016
- 2016-12-26 CN CN201611214431.3A patent/CN106808372B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0818274A1 (en) * | 1996-07-11 | 1998-01-14 | Pechiney Electrometallurgie | Surface treatment of aluminium alloys by projection of abrasive powder under pressure |
| CN102586781A (en) * | 2012-02-06 | 2012-07-18 | 广东步步高电子工业有限公司 | Aluminium alloy surface treatment method |
| 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 |
| CN105364637A (en) * | 2015-09-29 | 2016-03-02 | 广东欧珀移动通信有限公司 | Surface treatment method of aluminum alloy shell |
| CN105925977A (en) * | 2016-04-27 | 2016-09-07 | 贵州航天风华精密设备有限公司 | Surface treatment method of aluminum alloy component |
| CN105908203A (en) * | 2016-05-31 | 2016-08-31 | 刘洪建 | Surface treatment process for aluminum alloy |
Non-Patent Citations (1)
| Title |
|---|
| 有机硅烷偶联剂在涂装前处理中的应用;赵平等;《电镀与精饰》;20100330;第32卷(第3期);第25-第28页 |
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Effective date of registration: 20190314 Address after: 511450 No. 8-1 Linghuan West Road, Shiji Town, Panyu District, Guangzhou City, Guangdong Province Applicant after: Guangzhou Yizhong metalwork Co., Ltd. Address before: 242300 Wanggang Road, Port Town, Ningguo City, Xuancheng City, Anhui Province Applicant before: Anhui Bao Heng new Mstar Technology Ltd |
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