CN104018205B - The anode oxidation method of pack alloy part - Google Patents
The anode oxidation method of pack alloy part Download PDFInfo
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- CN104018205B CN104018205B CN201410189249.1A CN201410189249A CN104018205B CN 104018205 B CN104018205 B CN 104018205B CN 201410189249 A CN201410189249 A CN 201410189249A CN 104018205 B CN104018205 B CN 104018205B
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Abstract
The invention belongs to process for treating surface, relate to the improvement to the method that pack alloy part anode aoxidizes.It is characterized in that, anodised step is as follows: boiling water boiling；Application of vacuum；Secondary boiling water boiling；Electrochemical deoiling；Go out light；Anodic oxidation.Invention prevents pack alloy part placing after a period of time, surface produces whiteness, has stopped to do over again, it is ensured that the qualification rate of pack alloy part anode oxidation film layer, has shortened the process-cycle, reduce processing cost.
Description
Technical field
The invention belongs to process for treating surface, relate to the oxidation of pack alloy part anode
The improvement of method.
Technical background
At present, domestic most employing conventional process flow, the steps include: electrochemical deoiling → heat
Washing → cold water is washed → is gone out light → cold water and washes → anodization.Its shortcoming is: at anodic oxidation
The oxide layer of the piece surface of reason can not be completely covered the hole knot of pack alloy piece surface
Structure, causes pack alloy part after placing a period of time, and surface produces whiteness,
Causing pack alloy part anode oxidation film layer defective, needing does over again re-starts anode
Oxidation.After the most repeatedly doing over again the most defective, cause the process-cycle to extend, processing cost
Rise.
Summary of the invention
It is an object of the invention to: propose the anodic oxidation side of the pack alloy part of a kind of improvement
Method, in order to preventing pack alloy part after placing a period of time, surface produces white thing
Matter, stops to do over again, it is ensured that the qualification rate of pack alloy part anode oxidation film layer, shortens
Process-cycle, reduce processing cost.
The technical scheme is that the anode oxidation method of pack alloy part, its feature exists
In, anodised step is as follows:
1, boiling water boiling: pack alloy part is put into and boils at least 4h in boiling water, then take out
At least 30s is rinsed with running water；
2, application of vacuum: pack alloy part is put into vacuum chamber, is evacuated down to air pressure
Not higher than 13Pa, pressurize at least 30min, then take out；
3, secondary boiling water boiling: pack alloy part is put into and boils at least 4h in boiling water, then
Taking-up running water rinses at least 30s；
4, electrochemical deoiling: pack alloy part is put into electrochemical deoiling groove soak 3min～
Take out after 5min, then pack alloy part is put in the hot water storgae of 60 DEG C～80 DEG C and rock
Clean at least 30s, after taking-up, rinse at least 30s with running water；Electrochemical deoiling liquid is alkalescent
Solution, the formula of electrochemical deoiling liquid is one of following formula:
4.1, formula A:NaOH:8g/L～12g/L；Na3PO4: 40g/L～60g/L；Na3SiO3: 3g/L～
5g/L；Solvent is water；
4.2, formula B:Na2CO3: 40g/L～50g/L；Na3PO4: 40g/L～50g/L；Na3SiO3:
20g/L～30g/L；Solvent is water；
4.3, formula C:Na3PO4: 35g/L～45g/L；Na3SiO3: 10g/L～15g/L；Solvent is water；
5, light is gone out: pack alloy part is put into immersion 10s～60s in light output groove, takes out
At least 30s is rinsed afterwards with running water；The formula of light-emitting solution is: hydrofluoric acid accounts for the body of light-emitting solution
Long-pending ratio is 3%～10%, and surplus is nitric acid；
6, anodic oxidation: pack alloy part is put in anodizing tank and carry out electrochemistry
Oxidation, anodizing tank liquid temp is 10 DEG C～18 DEG C, the oxidization time when black by needs
For 35min～55min；When other colors by needs, oxidization time is 20min～30min,
At least 30s is rinsed with running water after taking-up.
The invention have the advantage that the anodic oxidation of the pack alloy part proposing a kind of improvement
Method, it is therefore prevented that pack alloy part is after placing a period of time, and surface produces white thing
Matter, has stopped to do over again, it is ensured that the qualification rate of pack alloy part anode oxidation film layer,
Shorten the process-cycle, reduce processing cost.
Detailed description of the invention
Below the present invention is described in further details.The anode oxidation method of pack alloy part,
It is characterized in that, anodised step is as follows:
1, boiling water boiling: pack alloy part is put into and boils at least 4h in boiling water, then take out
At least 30s is rinsed with running water；
2, application of vacuum: pack alloy part is put into vacuum chamber, is evacuated down to air pressure
Not higher than 13Pa, pressurize at least 30min, then take out；The effect of this operation is: utilize
Vacuumize the foreign matter making to remain in pack alloy part and precipitate into piece surface.
3, secondary boiling water boiling: pack alloy part is put into and boils at least 4h in boiling water, then
Taking-up running water rinses at least 30s；During boiling water boils, cleaning of further
Absorption is at inside parts and the foreign matter on surface, and fills micropore of part with boiling water, for lower road work
Sequence is prepared.
4, electrochemical deoiling: pack alloy part is put into electrochemical deoiling groove soak 3min～
Take out after 5min, then pack alloy part is put in the hot water storgae of 60 DEG C～80 DEG C and rock
Clean at least 30s, after taking-up, rinse at least 30s with running water；Electrochemical deoiling liquid is alkalescent
Solution, the formula of electrochemical deoiling liquid is one of following formula:
4.1, formula A:NaOH:8g/L～12g/L；Na3PO4: 40g/L～60g/L；Na3SiO3: 3g/L～
5g/L；Solvent is water；
4.2, formula B:Na2CO3: 40g/L～50g/L；Na3PO4: 40g/L～50g/L；Na3SiO3:
20g/L～30g/L；Solvent is water；
4.3, formula C:Na3PO4: 35g/L～45g/L；Na3SiO3: 10g/L～15g/L；Solvent is water；
5, light is gone out: pack alloy part is put into immersion 10s～60s in light output groove, takes out
At least 30s is rinsed afterwards with running water；The formula of light-emitting solution is: hydrofluoric acid accounts for the body of light-emitting solution
Long-pending ratio is 3%～10%, and surplus is nitric acid；
6, anodic oxidation: pack alloy part is put in anodizing tank and carry out electrochemistry
Oxidation, anodizing tank liquid temp is 10 DEG C～18 DEG C, the oxidization time when black by needs
For 35min～55min；When other colors by needs, oxidization time is 20min～30min,
At least 30s is rinsed with running water after taking-up.
Embodiment 1, the anodic oxidation of 01 batch of pack alloy part, this batch of pack alloy zero
The material of part is ZL105.Anodised step is as follows:
1, boiling water boiling: put into by pack alloy part and boil 4h in boiling water, then takes out with certainly
Water rinses 30s；
2, application of vacuum: pack alloy part is put into vacuum chamber, is evacuated down to air pressure
For 12Pa, pressurize 35min, then take out；
3, secondary boiling water boiling: pack alloy part is put into and boils 4h in boiling water, then take out
30s is rinsed with running water；
4, electrochemical deoiling: after pack alloy part is put into electrochemical deoiling groove immersion 3min
Take out, then pack alloy part is put into the hot water storgae of 60 DEG C rocks cleaning 50s, take
30s is rinsed with running water after going out；Electrochemical deoiling liquid is weakly alkaline solution, electrochemical deoiling liquid
Formula is: NaOH:10g/L；Na3PO4: 48g/L；Na3SiO3: 4g/L；Solvent is
Water.
5, light is gone out: pack alloy part is put into immersion 10s in light output groove, uses after taking-up
Running water rinses 30s；The formula of light-emitting solution is: it is 3% that hydrofluoric acid accounts for the volume ratio of light-emitting solution,
Surplus is nitric acid；
6, anodic oxidation: pack alloy part is put in anodizing tank and carry out electrochemistry
Oxidation, anodizing tank liquid temp is 10 DEG C, and black by pack alloy part, during oxidation
Between be 55min, rinse 30s with running water after taking-up.
Embodiment 2, the anodic oxidation of 02 batch of pack alloy part, this batch of pack alloy zero
The material of part is ZL107.Anodised step is as follows:
1, boiling water boiling: pack alloy part is put into and boils 4.2h in boiling water, then take out use
Running water rinses 35s；
2, application of vacuum: pack alloy part is put into vacuum chamber, is evacuated down to air pressure
For 11Pa, pressurize 40min, then take out；
3, secondary boiling water boiling: pack alloy part is put into and boils 4.2h in boiling water, then take
Go out and rinse 35s with running water；
4, electrochemical deoiling: after pack alloy part is put into electrochemical deoiling groove immersion 4min
Take out, then pack alloy part is put into the hot water storgae of 70 DEG C rocks cleaning 45s, take
35s is rinsed with running water after going out；Electrochemical deoiling liquid is weakly alkaline solution, electrochemical deoiling liquid
Formula is: Na2CO3: 45g/L；Na3PO4: 45g/L；Na3SiO3: 25g/L；Solvent is water.
5, light is gone out: pack alloy part is put into immersion 30s in light output groove, uses after taking-up
Running water rinses 35s；The formula of light-emitting solution is: it is 5% that hydrofluoric acid accounts for the volume ratio of light-emitting solution,
Surplus is nitric acid；
6, anodic oxidation: pack alloy part is put in anodizing tank and carry out electrochemistry
Oxidation, anodizing tank liquid temp is 14 DEG C, and black by pack alloy part, during oxidation
Between be 50min, rinse 35s with running water after taking-up.
Embodiment 3, the anodic oxidation of 03 batch of pack alloy part, this batch of pack alloy zero
The material of part is ZL101.Anodised step is as follows:
1, boiling water boiling: pack alloy part is put into and boils 4.5h in boiling water, then take out use
Running water rinses 40s；
2, application of vacuum: pack alloy part is put into vacuum chamber, is evacuated down to air pressure
For 10Pa, pressurize 45min, then take out；
3, secondary boiling water boiling: pack alloy part is put into and boils 4.5h in boiling water, then take
Go out and rinse 40s with running water；
4, electrochemical deoiling: after pack alloy part is put into electrochemical deoiling groove immersion 5min
Take out, then pack alloy part is put into the hot water storgae of 80 DEG C rocks cleaning 30s, take
40s is rinsed with running water after going out；Electrochemical deoiling liquid is weakly alkaline solution, electrochemical deoiling liquid
Formula is: Na3PO4: 40g/L；Na3SiO3: 13g/L；Solvent is water.
5, light is gone out: pack alloy part is put into immersion 50s in light output groove, uses after taking-up
Running water rinses 40s；The formula of light-emitting solution is: it is 8% that hydrofluoric acid accounts for the volume ratio of light-emitting solution,
Surplus is nitric acid；
6, anodic oxidation: pack alloy part is put in anodizing tank and carry out electrochemistry
Oxidation, anodizing tank liquid temp is 16 DEG C, and yellow by pack alloy part, during oxidation
Between be 20min, rinse 40s with running water after taking-up.
Claims (1)
1. the anode oxidation method of pack alloy part, it is characterised in that anodised
Step is as follows:
1.1, boiling water boiling: pack alloy part is put into and boils at least 4h in boiling water, then take
Go out and rinse at least 30s with running water；
1.2, application of vacuum: pack alloy part is put into vacuum chamber, is evacuated down to gas
Pressure not higher than 13Pa, pressurize at least 30min, then take out；
1.3, secondary boiling water boiling: pack alloy part is put into and boils at least 4h in boiling water, so
Rear taking-up running water rinses at least 30s；
1.4, electrochemical deoiling: pack alloy part is put into electrochemical deoiling groove soak 3min～
Taking out after 5min, the tank liquor temperature of electrochemical deoiling groove is 60 DEG C～70 DEG C, then is closed by die casting aluminium
Metal parts is put into rock in the hot water storgae of 60 DEG C～80 DEG C and is cleaned at least 30s, after taking-up with from
Water rinses at least 30s；Electrochemical deoiling liquid is weakly alkaline solution, the formula of electrochemical deoiling liquid
It is one of following formula:
1.4.1, formula A:NaOH:8g/L～12g/L；Na3PO4: 40g/L～60g/L；Na3SiO3: 3
G/L～5g/L；Solvent is water；
1.4.2, formula B:Na2CO3: 40g/L～50g/L；Na3PO4: 40g/L～50g/L；Na3SiO3:
20g/L～30g/L；Solvent is water；
1.4.3, formula C:Na3PO4: 35g/L～45g/L；Na3SiO3: 10g/L～15g/L；Solvent is
Water；
1.5, light is gone out: pack alloy part is put into immersion 10s～60s in light output groove, takes
At least 30s is rinsed with running water after going out；The formula of light-emitting solution is: hydrofluoric acid accounts for light-emitting solution
Volume ratio is 3%～10%, and surplus is nitric acid；
1.6, anodic oxidation: pack alloy part is put in anodizing tank and carry out electrochemistry
Oxidation, anodizing tank liquid temp is 10 DEG C～18 DEG C, the oxidization time when black by needs
For 35min～55min；When other colors by needs, oxidization time is 20min～30min,
At least 30s is rinsed with running water after taking-up.
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| CN104018205B true CN104018205B (en) | 2016-08-24 |
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| CN105154954B (en) * | 2015-09-30 | 2019-01-08 | 深圳天珑无线科技有限公司 | Pack alloy surface treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641399A (en) * | 1979-09-10 | 1981-04-18 | Seikosha Co Ltd | Dyeing method of anodic oxidation aluminum |
| CN101476145A (en) * | 2008-11-21 | 2009-07-08 | 上海瑞尔实业有限公司 | Anodic oxidation dyeing process for multi-blind hole aluminum extruded section product |
| CN101760771A (en) * | 2008-10-24 | 2010-06-30 | 吴江市天龙机械有限公司 | Anodic oxidation surface treatment process method of aluminum die casting |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641399A (en) * | 1979-09-10 | 1981-04-18 | Seikosha Co Ltd | Dyeing method of anodic oxidation aluminum |
| CN101760771A (en) * | 2008-10-24 | 2010-06-30 | 吴江市天龙机械有限公司 | Anodic oxidation surface treatment process method of aluminum die casting |
| CN101476145A (en) * | 2008-11-21 | 2009-07-08 | 上海瑞尔实业有限公司 | Anodic oxidation dyeing process for multi-blind hole aluminum extruded section product |
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Address after: 230051 No. 35 Yan'an Road, Baohe Industrial Zone, Hefei City, Anhui Province Patentee after: Hefei Jianghang Aircraft Equipment Co., Ltd. Address before: 230051 Anhui Province, Hefei City Industrial Park Yanan Baohe Road No. 35 Patentee before: Hefei Jianghang Aircraft Equipment Co., Ltd. |