CN111472036A - Electrophoresis process for improving electrophoresis quality of electronic product - Google Patents
Electrophoresis process for improving electrophoresis quality of electronic product Download PDFInfo
- Publication number
- CN111472036A CN111472036A CN202010455398.3A CN202010455398A CN111472036A CN 111472036 A CN111472036 A CN 111472036A CN 202010455398 A CN202010455398 A CN 202010455398A CN 111472036 A CN111472036 A CN 111472036A
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- CN
- China
- Prior art keywords
- electrophoresis
- electronic product
- immersing
- paint layer
- attached
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001962 electrophoresis Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003973 paint Substances 0.000 claims abstract description 39
- 239000002253 acid Substances 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 21
- 238000005406 washing Methods 0.000 claims abstract description 21
- 239000003513 alkali Substances 0.000 claims abstract description 20
- 239000003822 epoxy resin Substances 0.000 claims abstract description 20
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 20
- 238000005238 degreasing Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000002585 base Substances 0.000 claims abstract description 6
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000012024 dehydrating agents Substances 0.000 claims description 14
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000004922 lacquer Substances 0.000 description 4
- 238000005554 pickling Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000643 oven drying Methods 0.000 description 2
- 241000180587 Pinnidae Species 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/04—Electrophoretic coating characterised by the process with organic material
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/20—Pretreatment
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses an electrophoresis process for improving the electrophoresis quality of an electronic product, which comprises the following steps: s1, hanging the electronic product to be electrophoresed on a hanging rack; s2, immersing the hanger into weak alkali liquor in a degreasing tank for 3-5 min, and removing oil stains attached to the outer surface of the electronic product by the weak alkali liquor; s4, after cleaning, immersing the hanger into a weak acid solution in an acid washing tank, and after immersing for 3-5 min, neutralizing residual weak base attached to the outer surface of the electronic product by the weak acid solution; s6, immersing the rack into an electrophoresis solution in an electrophoresis tank after cleaning, wherein the electrophoresis solution comprises epoxy resin, color paste and a delustering agent, and the volume ratio of the epoxy resin to the color paste is 2-2.5: and 1, after electrophoresis for a period of time, forming an electrophoretic paint layer on the outer surface of the electronic product. The invention has the beneficial effects that: the drying efficiency of the electronic product is improved, the drying quality is improved, the appearance quality of the electrophoretic paint layer is improved, and the process is simple.
Description
Technical Field
The invention relates to the technical field of electrophoresis of electronic products, in particular to an electrophoresis process for improving the electrophoresis quality of the electronic products.
Background
After the electronic product is processed, an electrophoretic paint layer with colors is needed to be electrophoresed on the electronic product by electrophoresis. The electrophoresis production line comprises a degreasing tank, a first cleaning tank, a pickling tank, a second cleaning tank, an electrophoresis tank, a third cleaning tank and an oven which are sequentially arranged, wherein in operation, workers hang electronic products on a hanging frame, a straight-line travelling mechanism of the electrophoresis production line immerses the hanging frame in the degreasing tank, oil stains on the electronic products are removed by alkali liquor in the degreasing tank, then the hanging frame is immersed in the first cleaning tank by the straight-line travelling mechanism, alkali liquor attached to the surfaces of the electronic products is cleaned by clear water in the first cleaning tank, then the hanging frame is immersed in the pickling tank by the straight-line travelling mechanism, residual alkali liquor and residual oil stains attached to the electronic products are removed by hydrochloric acid in the pickling tank, then the hanging frame is immersed in the second cleaning tank by the straight-line travelling mechanism, residual hydrochloric acid attached to the electronic products is cleaned by the clear water in the cleaning tank, and then the hanging frame is immersed in the, electrophoresis liquid in the electrophoresis tank is attached to the electronic product surface under the electric current, in order to form the electrophoresis lacquer layer, straight line running gear invades the stores pylon in the third cleaning tank behind the electrophoresis, the clear water of third cleaning tank in washs the remaining electrophoresis liquid of attaching to on electrophoresis lacquer layer surface, straight line running gear puts into the oven with the stores pylon at last, the oven is dried electronic product moisture on the surface, after the stoving, straight line running gear lifts out the stores pylon from the oven, the workman can follow the stores pylon after proposing, thereby finally obtain finished product electronic product.
In the electrophoresis process, the electrophoresis liquid is an important component, the existing electrophoresis liquid comprises epoxy resin and color paste, and the volume ratio of the epoxy resin to the color paste is 4: 1. the electrophoretic paint layer electrophoresed by the electrophoretic liquid has a bright surface and very high glossiness, namely, local areas of the surface have light reflection (such as the surface of a mouse and the surface of a ball pen shell), and when people see the electrophoretic paint layer, people feel uncomfortable. In addition, because a large amount of moisture are attached to on the electronic product surface, lead to needing oven need long time just can dry the moisture on the electrophoresis lacquer layer surface, and find after drying that the water stain still remains on the electrophoresis lacquer layer surface, the water stain becomes the water line after follow-up oven drying to electronic product's oven drying quality has been reduced. Therefore, an electrophoresis process capable of improving the drying efficiency of electronic products and improving the appearance quality of an electrophoretic paint layer is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an electrophoresis process for improving the drying efficiency, drying quality and appearance quality of an electrophoresis paint layer of an electronic product, which is simple in process.
The purpose of the invention is realized by the following technical scheme: an electrophoresis process for improving the electrophoresis quality of an electronic product comprises the following steps:
s1, hanging the electronic product to be electrophoresed on a hanging rack;
s2, immersing the hanger into weak alkali liquor in a degreasing tank for 3-5 min, and removing oil stains attached to the outer surface of the electronic product by the weak alkali liquor;
s3, washing the weak alkali liquor attached to the outer surface of the electronic product by using clean water;
s4, after cleaning, immersing the hanger into a weak acid solution in an acid washing tank, and after immersing for 3-5 min, neutralizing residual weak base attached to the outer surface of the electronic product by the weak acid solution;
s5, washing away the weak acid solution attached to the outer surface of the electronic product by using clean water;
s6, immersing the rack into an electrophoresis solution in an electrophoresis tank after cleaning, wherein the electrophoresis solution comprises epoxy resin, color paste and a delustering agent, and the volume ratio of the epoxy resin to the color paste is 2-2.5: 1, after electrophoresis for a period of time, forming an electrophoretic paint layer on the outer surface of the electronic product;
s7, washing off the clear water attached to the outer surface of the electrophoretic paint layer by using clear water;
s8, immersing the hanging rack in a storage tank filled with a dehydrating agent for 2-4 min, and removing water stains attached to the outer surface of the electrophoretic paint layer by using the dehydrating agent;
and S9, after dehydration, placing the hanging rack in an oven, and drying the clean water remained on the outer surface of the electrophoretic paint layer by the oven, thereby finally obtaining the finished product of the electronic product.
The volume ratio of the epoxy resin to the color paste is 2: 1.
the volume ratio of the epoxy resin to the color paste is 2.3: 1.
the volume ratio of the epoxy resin to the color paste is 2.5: 1.
the invention has the following advantages:
1. the invention adopts the dehydrating agent to remove water stains, and ensures that no water wave path appears on the outer surface of the electrophoretic paint layer after the electrophoretic paint layer enters the oven for drying, thereby greatly improving the drying quality which is more than 97 percent; in addition, the dehydrating agent can also remove most clear water attached to the outer surface of the electrophoretic paint layer in advance, so that when the drying oven is used, the drying of the electronic product can be completed only in a short time, and the drying efficiency of the electronic product is greatly improved.
2. The electrophoretic liquid contains the flatting agent, so that the obtained electrophoretic paint layer has no bright area, the glossiness is greatly reduced, compared with the glossiness reduced by 10 times by using the original electrophoretic liquid, and when the electrophoretic paint layer is seen by naked eyes, the electrophoretic paint layer does not reflect light, so that people feel particularly comfortable.
Detailed Description
The present invention is further described below, and the scope of protection of the present invention is not limited to the following:
the first embodiment is as follows: an electrophoresis process for improving the electrophoresis quality of an electronic product comprises the following steps:
s1, hanging the electronic product to be electrophoresed on a hanging rack;
s2, immersing the hanger in weak alkali liquor in a degreasing tank for 3min, and removing oil stains attached to the outer surface of the electronic product by the weak alkali liquor;
s3, washing the weak alkali liquor attached to the outer surface of the electronic product by using clean water;
s4, after cleaning, immersing the hanger into a weak acid solution in an acid washing tank, and after immersing for 3min, neutralizing residual weak base attached to the outer surface of the electronic product by the weak acid solution;
s5, washing away the weak acid solution attached to the outer surface of the electronic product by using clean water;
s6, after cleaning, immersing the rack in an electrophoresis solution in an electrophoresis tank, wherein the electrophoresis solution comprises epoxy resin, color paste and a delustering agent, and the volume ratio of the epoxy resin to the color paste is 2: 1, after electrophoresis for a period of time, forming an electrophoretic paint layer on the outer surface of the electronic product; because the electrophoretic fluid contains the flatting agent, the obtained electrophoretic paint layer has no bright area, thereby greatly reducing the glossiness, compared with the original electrophoretic fluid, the glossiness is reduced by 10 times, when the electrophoretic paint layer is seen by naked eyes, the electrophoretic paint layer does not reflect light, and people feel particularly comfortable.
S7, washing off the clear water attached to the outer surface of the electrophoretic paint layer by using clear water;
s8, immersing the hanging rack in a storage tank filled with a dehydrating agent for 2min, and removing water stains attached to the outer surface of the electrophoretic paint layer by the dehydrating agent;
and S9, after dehydration, placing the hanging rack in an oven, and drying the clean water remained on the outer surface of the electrophoretic paint layer by the oven, thereby finally obtaining the finished product of the electronic product. Because the dehydrating agent removes water stains, after the electrophoretic paint layer enters the oven for drying, no water wave is generated on the outer surface of the electrophoretic paint layer, so that the drying quality is greatly improved and is more than 97%; in addition, the dehydrating agent can also remove most clear water attached to the outer surface of the electrophoretic paint layer in advance, so that when the drying oven is used, the drying of the electronic product can be completed only in a short time, and the drying efficiency of the electronic product is greatly improved.
Example two: an electrophoresis process for improving the electrophoresis quality of an electronic product comprises the following steps:
s1, hanging the electronic product to be electrophoresed on a hanging rack;
s2, immersing the hanger in weak alkali liquor in a degreasing tank for 4min, and removing oil stains attached to the outer surface of the electronic product by the weak alkali liquor;
s3, washing the weak alkali liquor attached to the outer surface of the electronic product by using clean water;
s4, after cleaning, immersing the hanger into a weak acid solution in an acid washing tank, and after immersing for 4min, neutralizing residual weak base attached to the outer surface of the electronic product by the weak acid solution;
s5, washing away the weak acid solution attached to the outer surface of the electronic product by using clean water;
s6, after cleaning, immersing the rack in an electrophoresis solution in an electrophoresis tank, wherein the electrophoresis solution comprises epoxy resin, color paste and a delustering agent, and the volume ratio of the epoxy resin to the color paste is 2.3: 1, after electrophoresis for a period of time, forming an electrophoretic paint layer on the outer surface of the electronic product;
s7, washing off the clear water attached to the outer surface of the electrophoretic paint layer by using clear water;
s8, immersing the hanging rack in a storage tank filled with a dehydrating agent for 3min, and removing water stains attached to the outer surface of the electrophoretic paint layer by the dehydrating agent;
and S9, after dehydration, placing the hanging rack in an oven, and drying the clean water remained on the outer surface of the electrophoretic paint layer by the oven, thereby finally obtaining the finished product of the electronic product.
Example three: an electrophoresis process for improving the electrophoresis quality of an electronic product comprises the following steps:
s1, hanging the electronic product to be electrophoresed on a hanging rack;
s2, immersing the hanger in weak alkali liquor in a degreasing tank for 5min, and removing oil stains attached to the outer surface of the electronic product by the weak alkali liquor;
s3, washing the weak alkali liquor attached to the outer surface of the electronic product by using clean water;
s4, after cleaning, immersing the hanger into a weak acid solution in an acid washing tank, and after immersing for 5min, neutralizing residual weak base attached to the outer surface of the electronic product by the weak acid solution;
s5, washing away the weak acid solution attached to the outer surface of the electronic product by using clean water;
s6, after cleaning, immersing the rack in an electrophoresis solution in an electrophoresis tank, wherein the electrophoresis solution comprises epoxy resin, color paste and a delustering agent, and the volume ratio of the epoxy resin to the color paste is 2.5: 1, after electrophoresis for a period of time, forming an electrophoretic paint layer on the outer surface of the electronic product;
s7, washing off the clear water attached to the outer surface of the electrophoretic paint layer by using clear water;
s8, immersing the hanging rack in a storage tank filled with a dehydrating agent for 4min, and removing water stains attached to the outer surface of the electrophoretic paint layer by the dehydrating agent;
and S9, after dehydration, placing the hanging rack in an oven, and drying the clean water remained on the outer surface of the electrophoretic paint layer by the oven, thereby finally obtaining the finished product of the electronic product.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. An electrophoresis process for improving the electrophoresis quality of an electronic product is characterized in that: it comprises the following steps:
s1, hanging the electronic product to be electrophoresed on a hanging rack;
s2, immersing the hanger into weak alkali liquor in a degreasing tank for 3-5 min, and removing oil stains attached to the outer surface of the electronic product by the weak alkali liquor;
s3, washing the weak alkali liquor attached to the outer surface of the electronic product by using clean water;
s4, after cleaning, immersing the hanger into a weak acid solution in an acid washing tank, and after immersing for 3-5 min, neutralizing residual weak base attached to the outer surface of the electronic product by the weak acid solution;
s5, washing away the weak acid solution attached to the outer surface of the electronic product by using clean water;
s6, immersing the rack into an electrophoresis solution in an electrophoresis tank after cleaning, wherein the electrophoresis solution comprises epoxy resin, color paste and a delustering agent, and the volume ratio of the epoxy resin to the color paste is 2-2.5: 1, after electrophoresis for a period of time, forming an electrophoretic paint layer on the outer surface of the electronic product;
s7, washing off the clear water attached to the outer surface of the electrophoretic paint layer by using clear water;
s8, immersing the hanging rack in a storage tank filled with a dehydrating agent for 2-4 min, and removing water stains attached to the outer surface of the electrophoretic paint layer by using the dehydrating agent;
and S9, after dehydration, placing the hanging rack in an oven, and drying the clean water remained on the outer surface of the electrophoretic paint layer by the oven, thereby finally obtaining the finished product of the electronic product.
2. The electrophoresis process for improving the electrophoresis quality of an electronic product according to claim 1, wherein: the volume ratio of the epoxy resin to the color paste is 2: 1.
3. the electrophoresis process for improving the electrophoresis quality of an electronic product according to claim 1, wherein: the volume ratio of the epoxy resin to the color paste is 2.3: 1.
4. the electrophoresis process for improving the electrophoresis quality of an electronic product according to claim 1, wherein: the volume ratio of the epoxy resin to the color paste is 2.5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010455398.3A CN111472036A (en) | 2020-05-26 | 2020-05-26 | Electrophoresis process for improving electrophoresis quality of electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010455398.3A CN111472036A (en) | 2020-05-26 | 2020-05-26 | Electrophoresis process for improving electrophoresis quality of electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111472036A true CN111472036A (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010455398.3A Pending CN111472036A (en) | 2020-05-26 | 2020-05-26 | Electrophoresis process for improving electrophoresis quality of electronic product |
Country Status (1)
| Country | Link |
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| CN (1) | CN111472036A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01177392A (en) * | 1988-01-08 | 1989-07-13 | Kansai Paint Co Ltd | Pretreatment of body to be coated by electrodeposition |
| CN102912400A (en) * | 2012-10-25 | 2013-02-06 | 奥捷五金(江苏)有限公司 | Stainless steel multicolor electrophoretic coating technology |
| CN110055574A (en) * | 2019-04-23 | 2019-07-26 | 太仓华庆汽车配件有限公司 | The electrophoresis method of aluminum part |
-
2020
- 2020-05-26 CN CN202010455398.3A patent/CN111472036A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01177392A (en) * | 1988-01-08 | 1989-07-13 | Kansai Paint Co Ltd | Pretreatment of body to be coated by electrodeposition |
| CN102912400A (en) * | 2012-10-25 | 2013-02-06 | 奥捷五金(江苏)有限公司 | Stainless steel multicolor electrophoretic coating technology |
| CN110055574A (en) * | 2019-04-23 | 2019-07-26 | 太仓华庆汽车配件有限公司 | The electrophoresis method of aluminum part |
Non-Patent Citations (2)
| Title |
|---|
| 申小平: "《粉末冶金制造工程》", 30 June 2016, 北京：国防工业出版社 * |
| 陈亚: "《现代实用电镀技术》", 31 January 2003, 北京：国防工业出版社 * |
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Application publication date: 20200731 |