CN105132872B - A kind of improved vacuum splashing and plating surface treatment method - Google Patents
A kind of improved vacuum splashing and plating surface treatment method Download PDFInfo
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- CN105132872B CN105132872B CN201510522625.9A CN201510522625A CN105132872B CN 105132872 B CN105132872 B CN 105132872B CN 201510522625 A CN201510522625 A CN 201510522625A CN 105132872 B CN105132872 B CN 105132872B
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Abstract
A kind of improved vacuum splashing and plating surface treatment method, comprises the following steps：(1), pre-treatment is carried out to pending workpiece surface；(2), the curing of UV medium paints ultraviolet light or medium powder (medium paint) heat cure are sprayed；(3), vacuum splashing and plating chromium, obtains chrome-plated workpieces.The present invention provides the improved vacuum splashing and plating surface treatment method that a kind of fraction defective is relatively low, cost is low, the feature of environmental protection is good, without spraying varnish protection again.
Description
Technical field
The present invention relates to process of surface treatment, especially a kind of vacuum splashing and plating surface treatment method.
Background technology
Chromium is a kind of silvery white non-ferrous metal of micro-strip blue cast, and chrome plating chemical stability is good, good (the i.e. mirror effect of reflective
It is good), it can keep gloss for a long time in normal atmospheric environment and non-discolouring.Chromium surface hydrophobic and oil repellent is not easy to be contaminated, and coating
It is not easy to be scratched firmly.Decoration chrome plating can integrally lift the class of product, be widely used in the first-class sanitaryware of the fire hose, superior automobile
The decoration such as wheel hub and panel decoration and household clothes.
Typical brass screw down bib cock chrome-plated process is plated using water power, since water power chromium plating is related to too many technique, is produced big
The waste water of amount, Cr VI are even more strong carcinogen, are not environmentally to need superseded technique；In addition polish the metallic dust of generation have it is quick-fried
Fried danger, Work Safety Supervision Bureau of current country has prohibited.But the demand of chromium-plating effect still has, also have on the market at present true
Empty sputtering process is met the requirements.
The general technology of current vacuum splashing and plating, by taking automotive hub as an example：Corase grinding → pre-treatment → dusts drying → offline
Fine grinding → (pre-treatment → spray black backing varnish drying →) spray medium paint or medium powder drying → vacuum splashing and plating aluminium or chromium → spray varnish dry
It is dry, if the technique in spray medium powder bracket can not have to.Sputter there are the problem of be：It is resistance to because aluminium is amphoteric metal if aluminizing
Corrosion can be problematic；If chromium plating, because current technology reason, it can be cracked after spraying varnish, it is very soft not spray then layers of chrome, not scratch-resistant
Wound.Need to spray varnish and protect to cause first-time qualification rate not high last, so that cost is higher than water power plating.Also have two in addition to powder
Layer paint, VOC emission are more.And tap, plastic part etc. do not take also sputtering process to replace.
The content of the invention
In order to overcome the shortcomings of that the fraction defective of existing vacuum splashing and plating surface treatment mode is high, of high cost, the feature of environmental protection is poor, this
Invention provides the improved vacuum splashing and plating surface treatment method that a kind of fraction defective is relatively low, cost is low, the feature of environmental protection is good.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of improved vacuum splashing and plating surface treatment method, comprises the following steps：
(1), pre-treatment is carried out to pending workpiece surface；
(2), the curing of UV medium paints ultraviolet light or medium powder/medium paint heat cure are sprayed；
(3), vacuum splashing and plating chromium, obtains chrome-plated workpieces.
Further, in the step (1), the workpiece is metalwork, carries out drying of dusting.
Either：In the step (1), the workpiece is plastic part, carries out oil removal treatment.
Further, after pre-treatment, if the ground grinding abrasive paper of workpiece is coarser than No. 600, primer spray, drying are carried out.
After pre-treatment, primer spray, drying are carried out to plastic part.
Further, in (3), the UV media paint for high rigidity polyfunctional group urethane acrylate system or
Amino acrylates system or Epoxy Phenolic Acrylates system or polyester acrylate system；The medium powder or medium paint
For following one or two kinds of and two or more mixing：1. high rigidity epoxy systems, 2. phenolic system, 3. cyanate system, 4. gathers
Aryl ethane resin system, 5. polyimides system, 6. polybenzimidazoles system, 7. Bismaleimide Resin, 8. benzo ring
Butylene.
Ying Du≤2H after medium paint or the medium powder curing.
For metalwork, the priming paint is epoxy amino system, epoxy polyurethane system, epoxy novolac system, epoxy
Ester system, epoxy polyamide system, Amino-Polyester system or acrylic-amino system.
For plastic part, the priming paint is done for thermoplastic systems, dual-component polyurethane system, low cross-linking UV systems or gas
Alcohol acid system.
In (3), the target of the sputtering machine used controls for chromium by adjusting voltage and current and time length
Color.
The present invention technical concept be：The hardness of final chrome layer is controlled by adjusting the hardness of medium paint (powder), from
It can reach the requirement of decorative chromium without spraying varnish.
Beneficial effects of the present invention are mainly manifested in：(1), sputter layers of chrome is increased by increasing the hardness of medium paint (powder)
Hardness, save spray one procedure of varnish；(2), UV media paint baking time is very short, and dust fall chance is few, and first-time qualification rate improves；
(3) VOC emission is reduced using medium paint under the conditions of existing process, medium powder is even more zero-emission.
Embodiment
The invention will be further described below.
A kind of improved vacuum splashing and plating surface treatment method, comprises the following steps：
(1), pre-treatment is carried out to pending workpiece surface；
(2), the curing of UV medium paints ultraviolet light or medium powder/medium paint heat cure are sprayed；
(3), vacuum splashing and plating chromium, obtains chrome-plated workpieces.
Further, in the step (1), the workpiece is metalwork, carries out drying of dusting.
Either：In the step (1), the workpiece is plastic part, carries out oil removal treatment.
Further, after pre-treatment, if the ground grinding abrasive paper of workpiece is coarser than No. 600, primer spray, drying are carried out.
After pre-treatment, primer spray, drying are carried out to plastic part.
Further, in (3), the UV media paint for high rigidity polyfunctional group urethane acrylate system or
Amino acrylates system or Epoxy Phenolic Acrylates system or polyester acrylate system；
The medium powder or medium paint are following one or two kinds of and two or more mixing：1. high rigidity epoxy systems,
2. phenolic system, 3. cyanate system, 4. poly- aryl ethane resin system, 5. polyimides system, 6. polybenzimidazoles system,
7. Bismaleimide Resin, 8. benzocyclobutene.
Ying Du≤2H after medium paint or the medium powder curing.
For metalwork, the priming paint is epoxy amino system, epoxy polyurethane system, epoxy novolac system, epoxy
Ester system, epoxy polyamide system, Amino-Polyester system or acrylic-amino system.
For plastic part, the priming paint is done for thermoplastic systems, dual-component polyurethane system, low cross-linking UV systems or gas
Alcohol acid system.
In (3), the target of the sputtering machine used controls for chromium by adjusting voltage and current and time length
Color.
Example 1：A kind of improved vacuum splashing and plating surface treatment method, process are as follows：
1) a kirsite tap blank, is looked for, pre-treatment after corase grinding, sprays epoxy polyester ashes, and 180 DEG C are dried for 10 minutes
It is dry.
2), 320# sand paper polishing polishing, sprays epoxy amino base paint, 140 DEG C, 10~20 minutes are dried；If ashes levelling is very
It is good, then defect is ground with more than 600# sand paper, medium powder is directly sprayed, without primer spray.
3) novolac epoxy resin cyanate medium powder, is sprayed, 200~220 DEG C, 60 minutes are dried.
4), magnetic control sputtering plating chromium,
5), examine, packaging.
Example 2：A kind of improved vacuum splashing and plating surface treatment method, process are as follows：
1) a A356 aluminium alloy wheel hubs, are looked for, normal pre-treatment, sprays the black powder of epoxy polyester, and 180 DEG C dry for 10 minutes,
400# sand paper is ground, pre-treatment.
2), spray ring oxygen polyamide system dumb light black backing varnish, 70~90 DEG C, 30~60 minutes are dried.
3) UV medium paints, are sprayed, 60 DEG C, 3~5 minutes are dodged dry, ultraviolet light curing 1~3 minute, cumlative energy 4000mj/
cm2。
4), magnetic control sputtering plating chromium.
5), examine, packaging.
Example 3：A kind of improved vacuum splashing and plating surface treatment method, process are as follows：
1) an aluminium alloy lamp base, the polishing of 800# sand paper, pre-treatment, are looked for.
2) epoxy novolac medium paint, is sprayed, 200 DEG C, 60 minutes are toasted.
3), magnetic control sputtering plating chromium
4), examine, packaging.
Example 4：A kind of improved vacuum splashing and plating surface treatment method, process are as follows：
1) an iron seat, pre-treatment are looked for.
2) epoxy novolac phenolic aldehyde medium powder is sprayed, 220 DEG C, 60 minutes are toasted.
3) magnetic control sputtering plating chromium.
4) examine, packaging.
Example 5：A kind of improved vacuum splashing and plating surface treatment method, process are as follows：
1) a piece of ABS automobile grills plug-in unit, oil removing are looked for.
2) low official UV priming paint is sprayed, ultraviolet light cures, more than cumlative energy 600mj/cm2.
3) spray high-ranking official's aromatic urethane acrylate UV medium paints, ultraviolet light cure, cumlative energy 800mj/cm2 with
On.
4) magnetic control sputtering plating chromium.
5) examine, packaging.
Claims (2)
- A kind of 1. improved vacuum splashing and plating surface treatment method, it is characterised in that：Comprise the following steps：(1), pre-treatment is carried out to pending workpiece surface, the workpiece is plastic part, carries out oil removal treatment；After pre-treatment, Primer spray, drying are carried out to plastic part；The priming paint for thermoplastic systems, dual-component polyurethane system, low cross-linking UV systems or The dry alcohol acid system of gas；(2), the curing of UV medium paints ultraviolet light or medium powder/medium paint heat cure are sprayed；After the medium paint or medium powder cure Ying Du≤2H；The UV media paint is high rigidity polyfunctional group urethane acrylate system or amino acrylates system or phenol Aldehyde epoxy acrylate system or polyester acrylate system；The medium powder or medium paint are following one or two and two Kind is mixed above：1. high rigidity epoxy systems, 2. phenolic system, 3. cyanate system, 4. poly- aryl ethane resin system, 5. gathers Acid imide system, 6. polybenzimidazoles system, 7. Bismaleimide Resin, 8. benzocyclobutene；(3), vacuum splashing and plating chromium, obtains chrome-plated workpieces.
- 2. improved vacuum splashing and plating surface treatment method as claimed in claim 1, it is characterised in that：In (3), use The target of sputtering machine be chromium, control color by adjusting voltage and current and time length.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522625.9A CN105132872B (en) | 2015-08-24 | 2015-08-24 | A kind of improved vacuum splashing and plating surface treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522625.9A CN105132872B (en) | 2015-08-24 | 2015-08-24 | A kind of improved vacuum splashing and plating surface treatment method |
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| Publication Number | Publication Date |
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| CN105132872A CN105132872A (en) | 2015-12-09 |
| CN105132872B true CN105132872B (en) | 2018-05-11 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525266A (en) * | 2015-12-25 | 2016-04-27 | 湖州标立节能技术有限公司 | Vacuum coating process for aluminum alloy hub |
| CN110616398A (en) * | 2019-10-31 | 2019-12-27 | 苏州市三同真空镀膜有限公司 | Design method for brightness increase and change of rear cover of mobile phone |
| CN114134468A (en) * | 2021-12-03 | 2022-03-04 | 海珀(滁州)材料科技有限公司 | Machining process for preventing point discharge during vacuum sputtering |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792434A (en) * | 2004-11-26 | 2006-06-28 | 罗门哈斯电子材料有限公司 | Uv curable catalyst compositions |
| CN101717921A (en) * | 2009-11-25 | 2010-06-02 | 东莞市黄江铭滔真空镀膜厂 | Surface electroplating process of nylon decorative cone |
| CN101908384A (en) * | 2009-06-03 | 2010-12-08 | 深圳富泰宏精密工业有限公司 | Manufacturing method of shell and shell manufactured by using same |
| CN104001652A (en) * | 2014-05-30 | 2014-08-27 | 江海滢 | Electrostatic spraying technology for cold-roll steel sheets |
-
2015
- 2015-08-24 CN CN201510522625.9A patent/CN105132872B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792434A (en) * | 2004-11-26 | 2006-06-28 | 罗门哈斯电子材料有限公司 | Uv curable catalyst compositions |
| CN101908384A (en) * | 2009-06-03 | 2010-12-08 | 深圳富泰宏精密工业有限公司 | Manufacturing method of shell and shell manufactured by using same |
| CN101717921A (en) * | 2009-11-25 | 2010-06-02 | 东莞市黄江铭滔真空镀膜厂 | Surface electroplating process of nylon decorative cone |
| CN104001652A (en) * | 2014-05-30 | 2014-08-27 | 江海滢 | Electrostatic spraying technology for cold-roll steel sheets |
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| Publication number | Publication date |
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| CN105132872A (en) | 2015-12-09 |
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