CN110280454A - High salt fog, high anti-aging silane Pretreatment Technology Before Finishing - Google Patents
High salt fog, high anti-aging silane Pretreatment Technology Before Finishing Download PDFInfo
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- CN110280454A CN110280454A CN201910573549.2A CN201910573549A CN110280454A CN 110280454 A CN110280454 A CN 110280454A CN 201910573549 A CN201910573549 A CN 201910573549A CN 110280454 A CN110280454 A CN 110280454A
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- metal surface
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
A kind of high salt fog, high anti-aging silane Pretreatment Technology Before Finishing, since it increases at least three washing processes that pure water is washed with together with than traditional silane process free of cleaning, and effectively control the parameters such as conductivity, PH, to make by treated metal surface, in following coating, the coating of salt fog and QUV performance greater than 1000 hours can be formed；And forming silane film uniform in effect its, film layer is thin compared with phosphating coat, and has flexible well, and the crooked test of metal and shock-testing qualification rate are high after spraying, to substantially increase yield rate.
Description
Technical field
The present invention relates to the techniques that a kind of pair of metal surface carries out silane treatment.
Background technique
Silane treatment is one kind based on silane, is handled metal surface, makes to deposit life on metal surface
Side at one layer of heterozygosis indissoluble chemical combination silane film shows, can be widely used for electrostatic plastic spraying, liquid coating and the electrophoresis of various powder
Coating etc. has an excellent physical property and secondary physical property after cooperating excellent coating layer, is environment-friendly high-efficiency Coating Pretreatment of new generation
Technique.The technique mediates reason without table,
Surface treatment suitable for cold-reduced sheet, galvanized sheet, aluminium.Traditional this technique is silane pre-treating technology free of cleaning,
Because part can take cross contamination caused by liquid medicine out of in preceding processing, the performance of liquid medicine can be greatly reduced and liquid medicine can be made to generate
Many impurity, to causing particle, coating binding force difference etc. bad after spraying.
Currently, silane process free of cleaning or the handled metal come out of phosphating process, its metal after next coating
The salt fog performance and QUV performance on surface are extremely difficult to 1000 hours substantially within 500 hours, and technique is unstable, parameter
Control more extensive, and in processing, PH and conductivity to forward and backward workshop section are not controlled, and lead in production that liquid medicine is more
Frequency height is changed, especially phosphorized waste water belongs to high pollution waste water, and processing cost is high.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of more reasonable structures, salt fog performance and anti-ageing
Change the higher silane Pretreatment Technology Before Finishing of performance.
In order to solve above-mentioned technical problem, the present invention is adopted the following technical solutions:
A kind of high salt fog, high anti-aging silane Pretreatment Technology Before Finishing, which comprises the steps of:
1), pre- oil removing: at normal temperature it is the degreaser of 10-14, concentration 5-10% by pH value, sprays onto metal surface, spray
Time is 60-65 seconds, spray pressure 0.07-0.12Mpa；
2), main oil removing: by metal be immersed in 30-40 DEG C, pH value 10-14, concentration 5-10% degreaser in, soaking time is
325-365 seconds, and it is passed through the ultrasonic wave electric current of 2.0-3.5；
3), first wash: by conductivity≤3 times moisturizing TDS, PH be 7-11 water spray on the metal surface, spray pressure
It is 40-65 seconds for 0.07-0.12Mpa and spray time；
4), second wash: by conductivity≤2 times moisturizing TDS, PH be 6.5-9.5 water spray on the metal surface, spray pressure
Power is 0.07-0.12Mpa and spray time is 40-65 seconds；
5), third time wash: by conductivity≤500us/cm, PH be 6.5-8.5 water spray on the metal surface, spray pressure
It is 40-65 seconds for 0.07-0.12Mpa and spray time；
6), spray silane: by PH be 8.5-10.5, concentration is that 2.5-3.0% silane liquid sprays on the metal surface, and spray pressure is
0.07-0.12Mpa and spray time are 30-60 seconds；
7), the 4th time washing: by conductivity≤3 times moisturizing TDS, PH be 6.5-9.5 water spray on the metal surface, spray pressure
Power is 0.07-0.12Mpa and spray time is 40-65 seconds；
8), the 5th washing: by conductivity: on the metal surface for 6.5-8.5 water spray, spray pressure is by≤150s/cm, PH
0.07-0.12Mpa and spray time are 40-65 seconds；
9), pure water is washed: on the metal surface by conductivity≤150s/cm water spray, spray pressure 0.07-0.12Mpa, with
And spray time is 40-65 seconds.
Compared with prior art, beneficial effects of the present invention: 1), waste water caused by spray silane be comprehensive wastewater, it is dirty
It contaminates lower；2), after the treatment process before silane coating, in following coating, metal surface can be made to be formed more high-quality
Coating, reach salt fog and QUV performance greater than 1000 hours.3), cross silane pre-treatment after film-formation result it is uniform, film layer compared with
Phosphating coat is thin, and has flexibility well, and the crooked test of metal and shock-testing qualification rate are high after spraying, to mention significantly
High yield rate.And traditional phosphating coat is phosphorus-containing wastewater producing wastewater produced, is caused serious pollution to the environment, and is formed a film thicker,
It is easy to embrittlement, crooked test and shock-testing qualification rate are low after spraying.4), before high salt fog, high anti-aging silane coating
Science and engineering skill liquid medicine is more easier to control, and replacement frequency is low, before liquid medicine use cost is lower than silane pre-treatment free of cleaning and phosphatization
Reason.
The present invention is described in further detail With reference to embodiment:
[specific embodiment]
Embodiment one:
A kind of high salt fog, high anti-aging silane Pretreatment Technology Before Finishing, include the following steps:
1), pre- oil removing: at normal temperature it is the degreaser of 10, concentration 5% by pH value, sprays onto metal surface, spray time is
65 seconds, spray pressure 0.12Mpa；Material surface greasy dirt, impurity are purged, increases liquid medicine PH monitoring, can effectively prevent
Liquid medicine basicity is higher or relatively low and causes to reduce oil removing, grease removal effect.
2), main oil removing: by metal be immersed in 30 DEG C, pH value 10, concentration 10% degreaser in, soaking time 365
Second, and it is passed through 2.0 ultrasonic wave electric current；The workpiece surface greasy dirt unnet to pre- oil removing thoroughly removes, and increasing liquid medicine PH monitoring can
It effectively prevent liquid medicine basicity higher or relatively low and causes to reduce oil removing grease removal effect.
3), first wash: by conductivity 3 times of moisturizings TDS, PH be 7 water spray on the metal surface, spray pressure is
0.07Mpa and spray time are 65 seconds；Lye, greasy dirt, impurity cleaning are carried out to the workpiece surface after oil removing, and reduce work
Part surface temperature prevents from quickly aoxidizing.Control pH value and conductivity can effectively prevent the unclean feelings of cleaning water quality within the scope of this
Condition avoids impacting rear process because water quality is excessively dirty.
4), second wash: by conductivity 2 times of moisturizings TDS, PH be 9.5 water spray on the metal surface, spray pressure
It is 40 seconds for 0.12Mpa and spray time；Workpiece surface lye, greasy dirt, impurity after oil removing are thoroughly cleaned up.Control
PH value and conductivity can effectively prevent the unclean situation of cleaning water quality within the scope of this, avoid making rear process because water quality is excessively dirty
At influence.
5), third time wash: by conductivity 500us/cm, PH be 6.5 water spray on the metal surface, spray pressure is
0.07Mpa and spray time are 40 seconds；Workpiece after oil removing is thoroughly cleaned, it is ensured that workpiece surface is in neutrality state, avoid because
Workpiece surface causes the not upper film phenomenon of spray silane in acid-base property.
6), spray silane: by PH be 10.5, concentration is that 2.5% silane liquid sprays on the metal surface, and spray pressure is
0.07Mpa and spray time are 60 seconds；By carrying out spray silane treatment to metal surface, makes to deposit on metal surface, generate
The infusible conjunction silane film of one layer of heterozygosis.Generated waste water is comprehensive wastewater after spraying silane, and pollution is lower, and currently employed
It is phosphorus-containing wastewater, high pollution source that phosphating process, which sprays generated waste water,.
7), the 4th time washing: by conductivity 3 times of moisturizings TDS, PH be 9.5 water spray on the metal surface, spray pressure
It is 40 seconds for 0.12Mpa and spray time；To the remaining liquid medicine of workpiece surface after silanization, impurity cleaning.Control pH value
And conductivity can effectively prevent the unclean situation of cleaning water quality, avoid impacting rear process because water quality is excessively dirty.
8), the 5th washing: by conductivity: the water spray that 150us/cm, PH are 6.5 on the metal surface, spray pressure
It is 40 seconds for 0.07Mpa and spray time；Lye, greasy dirt, the impurity of workpiece surface after spray silane are thoroughly cleaned
Completely.Control pH value and conductivity can effectively prevent the unclean situation of cleaning water quality, avoid making rear process because water quality is excessively dirty
At influence.
9), pure water is washed: on the metal surface by the water spray of conductivity 150us/cm, spray pressure 0.07Mpa, and
Spray time is 65 seconds, and the conductivity of water is carried by reducing workpiece, to reduce surface state and the performance production to follow-up coating
It is raw to influence.
After the coating that treated metal is carried out to silane, the salt fog of metal and QUV performance reach 1060 after tested
Hour.
Embodiment two:
A kind of high salt fog, high anti-aging silane Pretreatment Technology Before Finishing, include the following steps:
1), pre- oil removing: at normal temperature it is the degreaser of 12, concentration 7.5% by pH value, sprays onto metal surface, spray time
It is 63 seconds, spray pressure 0.09Mpa；Material surface greasy dirt, impurity are purged, increases liquid medicine PH monitoring, can effectively prevent
Only liquid medicine basicity it is higher or relatively low and cause reduce oil removing, grease removal effect.
2), main oil removing: by metal be immersed in 35 DEG C, pH value 12, concentration 8% degreaser in, soaking time be 345 seconds,
And be passed through 1.7 ultrasonic wave electric current；The workpiece surface greasy dirt unnet to pre- oil removing thoroughly removes, and increasing liquid medicine PH monitoring can be effective
It prevents that liquid medicine basicity is higher or relatively low and causes to reduce oil removing grease removal effect.
3), first wash: by conductivity 2.5 times of moisturizings TDS, PH be 9 water spray on the metal surface, spray pressure
It is 52 seconds for 0.09Mpa and spray time；Lye, greasy dirt, impurity cleaning are carried out to the workpiece surface after oil removing, and reduced
Workpiece surface temperature prevents from quickly aoxidizing.Control pH value and conductivity can effectively prevent the unclean of cleaning water quality within the scope of this
Situation avoids impacting rear process because water quality is excessively dirty.
4), second wash: by conductivity 1.8 times of moisturizings TDS, PH be 8 water spray on the metal surface, spray pressure
It is 53 seconds for 0.09Mpa and spray time；Workpiece surface lye, greasy dirt, impurity after oil removing are thoroughly cleaned up.Control
PH value and conductivity can effectively prevent the unclean situation of cleaning water quality within the scope of this, avoid making rear process because water quality is excessively dirty
At influence.
5), third time wash: by conductivity 450us/cm, PH be 7 water spray on the metal surface, spray pressure is
0.10Mpa and spray time are 52 seconds；Workpiece after oil removing is thoroughly cleaned, it is ensured that workpiece surface is in neutrality state, avoid because
Workpiece surface causes the not upper film phenomenon of spray silane in acid-base property.
6), spray silane: by PH be 9.5, concentration is that 2.8% silane liquid sprays on the metal surface, and spray pressure is
0.09Mpa and spray time are 45 seconds；By carrying out spray silane treatment to metal surface, makes to deposit on metal surface, generate
The infusible conjunction silane film of one layer of heterozygosis.Generated waste water is comprehensive wastewater after spraying silane, and pollution is lower, and currently employed
It is phosphorus-containing wastewater, high pollution source that phosphating process, which sprays generated waste water,.
7), the 4th time washing: by conductivity 2.7 times of moisturizings TDS, PH be 8 water spray on the metal surface, spray pressure
It is 53 seconds for 0.09Mpa and spray time；To the remaining liquid medicine of workpiece surface after silanization, impurity cleaning.Control pH value
And conductivity can effectively prevent the unclean situation of cleaning water quality, avoid impacting rear process because water quality is excessively dirty.
8), the 5th washing: by conductivity: the water spray that 135 us/cm, PH is 7 on the metal surface, spray pressure
It is 52 seconds for 0.09Mpa and spray time；Lye, greasy dirt, the impurity of workpiece surface after spray silane are thoroughly cleaned
Completely.Control pH value and conductivity can effectively prevent the unclean situation of cleaning water quality, avoid making rear process because water quality is excessively dirty
At influence.
9), pure water is washed: on the metal surface by the water spray of conductivity 140us/cm, spray pressure 0.09Mpa, and
Spray time is 52 seconds, and the conductivity of water is carried by reducing workpiece, to reduce surface state and the performance production to follow-up coating
It is raw to influence.
After the coating that treated metal is carried out to silane, the salt fog of metal and QUV performance reach 1200 after tested
Hour.
Embodiment three:
A kind of high salt fog, high anti-aging silane Pretreatment Technology Before Finishing, include the following steps:
1), pre- oil removing: at normal temperature it is the degreaser of 14, concentration 10% by pH value, sprays onto metal surface, spray time is
60 seconds, spray pressure 0.07Mpa；Material surface greasy dirt, impurity are purged, increases liquid medicine PH monitoring, can effectively prevent
Liquid medicine basicity is higher or relatively low and causes to reduce oil removing, grease removal effect.
2), main oil removing: by metal be immersed in 40 DEG C, pH value 14, concentration 5% degreaser in, soaking time be 325 seconds,
And be passed through 3.5 ultrasonic wave electric current；The workpiece surface greasy dirt unnet to pre- oil removing thoroughly removes, and increasing liquid medicine PH monitoring can be effective
It prevents that liquid medicine basicity is higher or relatively low and causes to reduce oil removing grease removal effect.
3), first wash: by conductivity 2 times of moisturizings TDS, PH be 11 water spray on the metal surface, spray pressure
It is 40 seconds for 0.12Mpa and spray time；Lye, greasy dirt, impurity cleaning are carried out to the workpiece surface after oil removing, and reduced
Workpiece surface temperature prevents from quickly aoxidizing.Control pH value and conductivity can effectively prevent the unclean of cleaning water quality within the scope of this
Situation avoids impacting rear process because water quality is excessively dirty.
4), second wash: by conductivity≤1.2 times moisturizing TDS, PH be 6.5 water spray on the metal surface, spray
Pressure is 0.07Mpa and spray time is 65 seconds；Workpiece surface lye, greasy dirt, impurity after oil removing are thoroughly cleaned up.
Control pH value and conductivity can effectively prevent the unclean situation of cleaning water quality within the scope of this, avoid because water quality is excessively dirty to rear work
Sequence impacts.
5), third time wash: by conductivity 350us/cm, PH be 8.5 water spray on the metal surface, spray pressure is
0.12Mpa and spray time are 65 seconds；Workpiece after oil removing is thoroughly cleaned, it is ensured that workpiece surface is in neutrality state, avoid because
Workpiece surface causes the not upper film phenomenon of spray silane in acid-base property.
6), spray silane: by PH be 8.5, concentration is that 3.0% silane liquid sprays on the metal surface, and spray pressure is
0.12Mpa and spray time are 30 seconds；By carrying out spray silane treatment to metal surface, makes to deposit on metal surface, generate
The infusible conjunction silane film of one layer of heterozygosis.Generated waste water is comprehensive wastewater after spraying silane, and pollution is lower, and currently employed
It is phosphorus-containing wastewater, high pollution source that phosphating process, which sprays generated waste water,.
7), the 4th time washing: by conductivity 2 times of moisturizings TDS, PH be 6.5 water spray on the metal surface, spray pressure
It is 65 seconds for 0.07Mpa and spray time；To the remaining liquid medicine of workpiece surface after silanization, impurity cleaning.Control pH value
And conductivity can effectively prevent the unclean situation of cleaning water quality, avoid impacting rear process because water quality is excessively dirty.
8), the 5th washing: on the metal surface for 8.5 water sprays by conductivity 100 us/cm, PH, spray pressure is
0.12Mpa and spray time are 65 seconds；It is dry that thoroughly cleaning is carried out to the lye, greasy dirt, impurity of the workpiece surface after spray silane
Only.Control pH value and conductivity can effectively prevent cleaning water quality unclean situation, avoid because water quality it is excessively dirty to rear process caused by
It influences.
9), pure water is washed: on the metal surface by the water spray of conductivity 100us/cm, spray pressure 0.12Mpa, and
Spray time is 40 seconds, and the conductivity of water is carried by reducing workpiece, to reduce surface state and the performance production to follow-up coating
It is raw to influence.
After the coating that treated metal is carried out to silane, the salt fog of metal and QUV performance reach 1140 after tested
Hour.
From the aforegoing it can be seen that pure with together with due to increasing by least three washings on the basis of traditional silane process free of cleaning
The process of washing, and the parameters such as conductivity, PH are effectively controlled, to make by treated metal surface, following
When coating, the coating of salt fog and QUV performance greater than 1000 hours can be formed；And forming silane film uniform in effect its, film layer compared with
Phosphating coat is thin, and has flexibility well, and the crooked test of metal and shock-testing qualification rate are high after spraying, to mention significantly
High yield rate.
It is aobvious for those skilled in the art by the disclosure although the present invention is described in detail referring to above example
And be clear to, and in the case where not departing from the principle of the present invention and scope that the claim limits, it can be right
The present invention makes a variety of changes or modifies.Therefore, the detailed description of the embodiment of the present disclosure is only used to explain, rather than is used to limit
The present invention, but it is defined by the subject-matter of the claims the range of protection.
Claims (1)
1. a kind of high salt fog, high anti-aging silane Pretreatment Technology Before Finishing, which comprises the steps of:
1), pre- oil removing: at normal temperature it is the degreaser of 10-14, concentration 5-10% by pH value, sprays onto metal surface, spray
Time is 60-65 seconds, spray pressure 0.07-0.12Mpa；
2), main oil removing: by metal be immersed in 30-40 DEG C, pH value 10-14, concentration 5-10% degreaser in, soaking time is
325-365 seconds, and it is passed through the ultrasonic wave electric current of 2.0-3.5；
3), first wash: by conductivity≤3 times moisturizing TDS, PH be 7-11 water spray on the metal surface, spray pressure
It is 40-65 seconds for 0.07-0.12Mpa and spray time；
4), second wash: by conductivity≤2 times moisturizing TDS, PH be 6.5-9.5 water spray on the metal surface, spray pressure
Power is 0.07-0.12Mpa and spray time is 40-65 seconds；
5), third time wash: by conductivity≤500us/cm, PH be 6.5-8.5 water spray on the metal surface, spray pressure
It is 40-65 seconds for 0.07-0.12Mpa and spray time；
6), spray silane: by PH be 8.5-10.5, concentration is that 2.5-3.0% silane liquid sprays on the metal surface, and spray pressure is
0.07-0.12Mpa and spray time are 30-60 seconds；
7), the 4th time washing: by conductivity≤3 times moisturizing TDS, PH be 6.5-9.5 water spray on the metal surface, spray pressure
Power is 0.07-0.12Mpa and spray time is 40-65 seconds；
8), the 5th washing: by conductivity: on the metal surface for 6.5-8.5 water spray, spray pressure is by≤150s/cm, PH
0.07-0.12Mpa and spray time are 40-65 seconds；
9), pure water is washed: on the metal surface by conductivity≤150s/cm water spray, spray pressure 0.07-0.12Mpa, with
And spray time is 40-65 seconds.
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ID=68019452
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115029761A (en) * | 2022-07-06 | 2022-09-09 | 浙江道和机械股份有限公司 | Electrophoresis and plastic spraying integrated production line |
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| JPS5830372A (en) * | 1981-08-14 | 1983-02-22 | Nisshin Steel Co Ltd | Production of aluminum plated steel plate coated with blister resistant paint |
| WO2004046425A2 (en) * | 2002-11-14 | 2004-06-03 | Elisha Holding Llc | Processes for electrocoating and articles made therefrom |
| CN102114460A (en) * | 2011-03-24 | 2011-07-06 | 常州市骠马涂装系统工程有限公司 | Pretreatment process for coating |
| CN102534638A (en) * | 2010-12-30 | 2012-07-04 | 苏州春兴精工股份有限公司 | Cleaning method of aluminum alloy product |
| CN102586769A (en) * | 2012-01-31 | 2012-07-18 | 马鞍山拓锐金属表面技术有限公司 | Nonphosphorus metal surface treatment agent and use method thereof |
| CN107065759A (en) * | 2017-05-31 | 2017-08-18 | 武汉大润科技有限公司 | Coating process process data acquisition method and system |
| CN107099806A (en) * | 2017-05-05 | 2017-08-29 | 京翰林微电水（北京）科技有限公司 | A kind of metal surface high-efficiency washing method based on micro- electric water |
| CN108787373A (en) * | 2018-06-25 | 2018-11-13 | 浙江华普永明科技有限公司 | A kind of process of surface treatment of aluminium casting lamp outer casing |
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2019
- 2019-06-28 CN CN201910573549.2A patent/CN110280454A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830372A (en) * | 1981-08-14 | 1983-02-22 | Nisshin Steel Co Ltd | Production of aluminum plated steel plate coated with blister resistant paint |
| WO2004046425A2 (en) * | 2002-11-14 | 2004-06-03 | Elisha Holding Llc | Processes for electrocoating and articles made therefrom |
| CN102534638A (en) * | 2010-12-30 | 2012-07-04 | 苏州春兴精工股份有限公司 | Cleaning method of aluminum alloy product |
| CN102114460A (en) * | 2011-03-24 | 2011-07-06 | 常州市骠马涂装系统工程有限公司 | Pretreatment process for coating |
| CN102586769A (en) * | 2012-01-31 | 2012-07-18 | 马鞍山拓锐金属表面技术有限公司 | Nonphosphorus metal surface treatment agent and use method thereof |
| CN107099806A (en) * | 2017-05-05 | 2017-08-29 | 京翰林微电水（北京）科技有限公司 | A kind of metal surface high-efficiency washing method based on micro- electric water |
| CN107065759A (en) * | 2017-05-31 | 2017-08-18 | 武汉大润科技有限公司 | Coating process process data acquisition method and system |
| CN108787373A (en) * | 2018-06-25 | 2018-11-13 | 浙江华普永明科技有限公司 | A kind of process of surface treatment of aluminium casting lamp outer casing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115029761A (en) * | 2022-07-06 | 2022-09-09 | 浙江道和机械股份有限公司 | Electrophoresis and plastic spraying integrated production line |
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Application publication date: 20190927 |