CN104451565A - Preparation method for vacuum coating piece high in abrasion resistance and high in chemical stability - Google Patents
Preparation method for vacuum coating piece high in abrasion resistance and high in chemical stability Download PDFInfo
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- CN104451565A CN104451565A CN201410678193.6A CN201410678193A CN104451565A CN 104451565 A CN104451565 A CN 104451565A CN 201410678193 A CN201410678193 A CN 201410678193A CN 104451565 A CN104451565 A CN 104451565A
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Abstract
The invention relates to a preparation method for a vacuum coating piece high in abrasion resistance and high in chemical stability. The preparation method comprises the following steps: placing a metal piece into a dilute acid solution or a dilute alkali solution for cleaning, and then drying; forming a passivation film convenient to spray on the surface of the metal piece; adopting the electrostatic spraying method for spraying an epoxy polyester powder coating, and curing at 160 DEG C for 15 minutes; polishing the metal piece after spraying base powders to smooth the surface of the metal piece; spraying a layer of medium powders on the metal piece to increase the surface smoothness of the metal piece; placing the metal piece into a vacuum chamber, carrying out vacuum coating on the surface of the dried metal piece, coating after ion bombardment, and depositing metal on the surface of the metal piece to form a metal or oxide thin film which is continuous, uniform, high in abrasion resistance and high in chemical stability.
Description
Technical field
The present invention relates to the preparation method of a kind of high abrasion, high chemical stability vacuum-coated piece, make it have the characteristic of high abrasion, high chemical stability.
Background technology
Prior art belongs to blank in the technique of metalwork (as phone housing, panel computer shell body etc.) surface ion plating, and original technology can only be used for the plating of metalwork water power or plastic parts vacuum plating, and its shortcoming is that metalwork water plating color is single; And plastic parts Vacuum Deposition rich color but intensity is extremely low, not wear-resisting, chemical stability can not meet the demands.
Summary of the invention
For the deficiencies in the prior art, object of the present invention aims to provide the preparation method of a kind of high abrasion, high chemical stability vacuum-coated piece, and the metallic film after the process of employing the method is even and sticking power is good, enhances the wear resistance of product surface coating.
The object of the invention is to be achieved through the following technical solutions:
A preparation method for high abrasion, high chemical stability vacuum-coated piece, is characterized in that: be placed in by metalwork and carry out cleaning post-drying containing diluted acid or sig water; The surface of metalwork is formed the passivation film being beneficial to spraying; Adopt electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 160 DEG C of temperature; Metalwork after spraying end powder is polished, makes metalwork smooth surface; Metalwork sprays one deck medium powder, increases the planeness on metalwork surface; Metalwork is positioned in vacuum chamber, implements vacuum plating, plated film after ion bombardment completes on the metalwork surface of drying, make metal be deposited on metalwork surface and form the high abrasion of continuous uniform, the metal of high chemical stability or sull.
As preferably, described vacuum coating method, described passivation film is chromium-free deactivation rete, and the metal coating of described vacuum plating is aluminium film.
As preferably, described vacuum coating method, carries out according to the following steps:
1) vacuumize: start pumped vacuum systems, the vacuum tightness controlling vacuum chamber reaches 3 × 10
-3pa-5 × 10
-3pa;
2) metalwork preheating: heater, by more than the heat metal articles to 70 in vacuum chamber DEG C, makes the atoms metal structure on metalwork surface change, makes atoms metal be in active state;
3) in vacuum chamber, pass into rare gas element, air pressure controls between 0.5-2Pa;
4) any one release metal ions in the following two kinds mode is adopted:
A, metal targets is set in vacuum chamber, metal targets applies the negative voltage being greater than 200V, makes metal targets discharge metal ion;
B, metal coating materials is set in vacuum chamber, adopts electron beam gun facing to the shooting of metal coating materials, make metal coating materials discharge metal ion; The output rating of electron beam gun is 4-30KW;
5) metal ion releases energy while being released, and glow discharge occurs, and produces plasma body; Metal ion in plasma body accelerates to metalwork under the effect of electric field, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body to replace on metalwork by the metal ion that spills and be deposited on metalwork and forms layer of metal film on the surface.
As preferably, described metalwork is aluminum, and described metal targets is aluminum; Coating process parameter is as follows: vacuum tightness is 3 × 10
-3pa-5 × 10
-3pa, metalwork preheating temperature is 70-150 DEG C, and the negative voltage put in metal targets is 200-1000V, and depositing time is 50-120 minute, and the thickness of metallic film is 50 μm-80 μm.
As preferably, in step 2) in, described rare gas element is any in helium, neon, argon, krypton, xenon.
Beneficial effect of the present invention is as follows:
The metallic film that the method for the invention obtains is even and sticking power is good, enhances the wear resistance of product surface electrolytic coating; Secondly, the metalwork having plated metallic film is carried out anodic oxidation treatment by the present invention, the rich color after plated film is oxidized, and corrosion resistance and good, improves the bulk strength of metalwork, and this technique environmentally safe.
Embodiment
In order to make the object of patent protection of the present invention, technical scheme and advantage clearly understand, below the present invention is further elaborated.
Embodiment 1
A preparation method for high abrasion, high chemical stability vacuum-coated piece, carries out: be placed in by metalwork and carry out cleaning post-drying containing diluted acid or sig water according to the following steps; The surface of metalwork is formed the passivation film being beneficial to spraying; Adopt electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 160 DEG C of temperature; Metalwork after spraying end powder is polished, makes metalwork smooth surface; Metalwork sprays one deck medium powder, increases the planeness on metalwork surface; Metalwork is positioned in vacuum chamber, implements vacuum plating, plated film after ion bombardment completes on the metalwork surface of drying, make metal be deposited on metalwork surface and form the high abrasion of continuous uniform, the metal of high chemical stability or sull.
Discharge metal ion to be excited, release energy simultaneously, glow discharge occurs, produce plasma body; Metal ion in plasma body accelerates to metalwork, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body replace the metal ion on metalwork and be deposited on metalwork to form layer of metal film on the surface.
Because film forming thickness is relevant with the depositing time of plated film, controlling depositing time is: 50 minutes, the thickness of the described metallic film obtained was 50 μm.
Described passivation film is chromium-free deactivation rete, and the metal coating of described vacuum plating is aluminium film.
Described vacuum coating method, carries out according to the following steps:
1) vacuumize: start pumped vacuum systems, the vacuum tightness controlling vacuum chamber reaches 3 × 10
-3pa-5 × 10
-3pa;
2) metalwork preheating: heater, by more than the heat metal articles to 70 in vacuum chamber DEG C, makes the atoms metal structure on metalwork surface change, makes atoms metal be in active state;
3) in vacuum chamber, pass into rare gas element, air pressure controls between 0.5-2Pa;
4) any one release metal ions in the following two kinds mode is adopted:
A, metal targets is set in vacuum chamber, metal targets applies the negative voltage being greater than 200V, makes metal targets discharge metal ion;
B, metal coating materials is set in vacuum chamber, adopts electron beam gun facing to the shooting of metal coating materials, make metal coating materials discharge metal ion; The output rating of electron beam gun is 4-30KW;
5) metal ion releases energy while being released, and glow discharge occurs, and produces plasma body; Metal ion in plasma body accelerates to metalwork under the effect of electric field, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body to replace on metalwork by the metal ion that spills and be deposited on metalwork and forms layer of metal film on the surface.
In step 2) in, described metalwork is aluminum, and described metal targets is aluminum; Coating process parameter is as follows: vacuum tightness is 3 × 10
-3pa-5 × 10
-3pa, metalwork preheating temperature is 70-150 DEG C, and the negative voltage put in metal targets is 200-1000V, and depositing time is 50-120 minute, and the thickness of metallic film is 50 μm-80 μm.
In step 2) in, described rare gas element is any in helium, neon, argon, krypton, xenon.
Embodiment 2
A preparation method for high abrasion, high chemical stability vacuum-coated piece, carries out: be placed in by metalwork and carry out cleaning post-drying containing diluted acid or sig water according to the following steps; The surface of metalwork is formed the passivation film being beneficial to spraying; Adopt electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 160 DEG C of temperature; Metalwork after spraying end powder is polished, makes metalwork smooth surface; Metalwork sprays one deck medium powder, increases the planeness on metalwork surface; Metalwork is positioned in vacuum chamber, implements vacuum plating, plated film after ion bombardment completes on the metalwork surface of drying, make metal be deposited on metalwork surface and form the high abrasion of continuous uniform, the metal of high chemical stability or sull.
Discharge metal ion to be excited, release energy simultaneously, glow discharge occurs, produce plasma body; Metal ion in plasma body accelerates to metalwork, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body replace the metal ion on metalwork and be deposited on metalwork to form layer of metal film on the surface.
Because film forming thickness is relevant with the depositing time of plated film, controlling depositing time is: 50 minutes, the thickness of the described metallic film obtained was 50 μm.
Described passivation film is chromium-free deactivation rete, and the metal coating of described vacuum plating is aluminium film.
Described vacuum coating method, carries out according to the following steps:
1) vacuumize: start pumped vacuum systems, the vacuum tightness controlling vacuum chamber reaches 3 × 10
-3pa-5 × 10
-3pa;
2) metalwork preheating: heater, by more than the heat metal articles to 70 in vacuum chamber DEG C, makes the atoms metal structure on metalwork surface change, makes atoms metal be in active state;
3) in vacuum chamber, pass into rare gas element, air pressure controls between 0.5-2Pa;
4) any one release metal ions in the following two kinds mode is adopted:
A, metal targets is set in vacuum chamber, metal targets applies the negative voltage being greater than 200V, makes metal targets discharge metal ion;
B, metal coating materials is set in vacuum chamber, adopts electron beam gun facing to the shooting of metal coating materials, make metal coating materials discharge metal ion; The output rating of electron beam gun is 4-30KW;
5) metal ion releases energy while being released, and glow discharge occurs, and produces plasma body; Metal ion in plasma body accelerates to metalwork under the effect of electric field, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body to replace on metalwork by the metal ion that spills and be deposited on metalwork and forms layer of metal film on the surface.
In step 2) in, described metalwork is aluminum, and described metal targets is aluminum; Coating process parameter is as follows: vacuum tightness is 3.5 × 10
-3pa, metalwork preheating temperature is 100 DEG C, and the negative voltage put in metal targets is 600V, and depositing time is 80 minutes, and the thickness of metallic film is 60 μm.
In step 2) in, described rare gas element is any in helium, neon, argon, krypton, xenon.
Embodiment 3
A preparation method for high abrasion, high chemical stability vacuum-coated piece, carries out: be placed in by metalwork and carry out cleaning post-drying containing diluted acid or sig water according to the following steps; The surface of metalwork is formed the passivation film being beneficial to spraying; Adopt electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 160 DEG C of temperature; Metalwork after spraying end powder is polished, makes metalwork smooth surface; Metalwork sprays one deck medium powder, increases the planeness on metalwork surface; Metalwork is positioned in vacuum chamber, implements vacuum plating, plated film after ion bombardment completes on the metalwork surface of drying, make metal be deposited on metalwork surface and form the high abrasion of continuous uniform, the metal of high chemical stability or sull.
Discharge metal ion to be excited, release energy simultaneously, glow discharge occurs, produce plasma body; Metal ion in plasma body accelerates to metalwork, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body replace the metal ion on metalwork and be deposited on metalwork to form layer of metal film on the surface.
Because film forming thickness is relevant with the depositing time of plated film, controlling depositing time is: 50 minutes, the thickness of the described metallic film obtained was 50 μm.
Described passivation film is chromium-free deactivation rete, and the metal coating of described vacuum plating is aluminium film.
Described vacuum coating method, carries out according to the following steps:
Vacuumize: start pumped vacuum systems, the vacuum tightness controlling vacuum chamber reaches 4 × 10
-3pa;
Metalwork preheating: heater, by the heat metal articles to 120 in vacuum chamber DEG C, makes the atoms metal structure on metalwork surface change, makes atoms metal be in active state;
In vacuum chamber, pass into rare gas element, air pressure controls between 0.5-2Pa; Described rare gas element is argon (Ar);
Release metal ions in the following way:
A, metal coating materials is set in vacuum chamber, adopts electron beam gun facing to the shooting of metal coating materials, make metal coating materials discharge metal ion; The output rating of electron beam gun is 20KW.
Discharge metal ion to be excited, release energy simultaneously, glow discharge occurs, produce plasma body; Metal ion in plasma body accelerates to metalwork, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body replace the metal ion on metalwork and be deposited on metalwork to form layer of metal film on the surface.
Because film forming thickness is relevant with the depositing time of plated film, controlling depositing time is: 100 minutes, the thickness of the described metallic film obtained was 70 μm.
Embodiment 4
A preparation method for high abrasion, high chemical stability vacuum-coated piece, carries out: be placed in by metalwork and carry out cleaning post-drying containing diluted acid or sig water according to the following steps; The surface of metalwork is formed the passivation film being beneficial to spraying; Adopt electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 160 DEG C of temperature; Metalwork after spraying end powder is polished, makes metalwork smooth surface; Metalwork sprays one deck medium powder, increases the planeness on metalwork surface; Metalwork is positioned in vacuum chamber, implements vacuum plating, plated film after ion bombardment completes on the metalwork surface of drying, make metal be deposited on metalwork surface and form the high abrasion of continuous uniform, the metal of high chemical stability or sull.
Discharge metal ion to be excited, release energy simultaneously, glow discharge occurs, produce plasma body; Metal ion in plasma body accelerates to metalwork, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body replace the metal ion on metalwork and be deposited on metalwork to form layer of metal film on the surface.
Because film forming thickness is relevant with the depositing time of plated film, controlling depositing time is: 50 minutes, the thickness of the described metallic film obtained was 50 μm.
Described passivation film is chromium-free deactivation rete, and the metal coating of described vacuum plating is aluminium film.
Described vacuum coating method, carries out according to the following steps:
1) vacuumize: start pumped vacuum systems, the vacuum tightness controlling vacuum chamber reaches 3 × 10
-3pa-5 × 10
-3pa;
2) metalwork preheating: heater, by more than the heat metal articles to 70 in vacuum chamber DEG C, makes the atoms metal structure on metalwork surface change, makes atoms metal be in active state;
3) in vacuum chamber, pass into rare gas element, air pressure controls between 0.5-2Pa;
4) any one release metal ions in the following two kinds mode is adopted:
A, metal targets is set in vacuum chamber, metal targets applies the negative voltage being greater than 200V, makes metal targets discharge metal ion;
B, metal coating materials is set in vacuum chamber, adopts electron beam gun facing to the shooting of metal coating materials, make metal coating materials discharge metal ion; The output rating of electron beam gun is 4-30KW;
5) metal ion releases energy while being released, and glow discharge occurs, and produces plasma body; Metal ion in plasma body accelerates to metalwork under the effect of electric field, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body to replace on metalwork by the metal ion that spills and be deposited on metalwork and forms layer of metal film on the surface.
In step 2) in, described metalwork is aluminum, and described metal targets is aluminum; Coating process parameter is as follows: vacuum tightness is 5 × 10
-3pa, metalwork preheating temperature is 150 DEG C, and the output rating putting on the electron beam gun of metal coating materials is 30KW, and depositing time is 120 minutes, and the thickness of metallic film is 80 μm.
In step 2) in, described rare gas element is any in helium, neon, argon, krypton, xenon.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (5)
1. a preparation method for high abrasion, high chemical stability vacuum-coated piece, is characterized in that: be placed in by metalwork and carry out cleaning post-drying containing diluted acid or sig water; The surface of metalwork is formed the passivation film being beneficial to spraying; Adopt electrostatic spraying spraying epoxy polyester powder coating, then solidify 15 minutes at 160 DEG C of temperature; Metalwork after spraying end powder is polished, makes metalwork smooth surface; Metalwork sprays one deck medium powder, increases the planeness on metalwork surface; Metalwork is positioned in vacuum chamber, implements vacuum plating, plated film after ion bombardment completes on the metalwork surface of drying, make metal be deposited on metalwork surface and form the high abrasion of continuous uniform, the metal of high chemical stability or sull.
2. the preparation method of high abrasion, high chemical stability vacuum metal part according to claim 1, it is characterized in that: described passivation film is chromium-free deactivation rete, the metal coating of described vacuum plating is aluminium film.
3. the preparation method of high abrasion according to claim 1, high chemical stability vacuum metal part, is characterized in that described vacuum coating method carries out according to the following steps:
1) vacuumize: start pumped vacuum systems, the vacuum tightness controlling vacuum chamber reaches 3 × 10
-3pa-5 × 10
-3pa;
2) metalwork preheating: heater, by more than the heat metal articles to 70 in vacuum chamber DEG C, makes the atoms metal structure on metalwork surface change, makes atoms metal be in active state;
3) in vacuum chamber, pass into rare gas element, air pressure controls between 0.5-2Pa;
4) any one release metal ions in the following two kinds mode is adopted:
A, metal targets is set in vacuum chamber, metal targets applies the negative voltage being greater than 200V, makes metal targets discharge metal ion;
B, metal coating materials is set in vacuum chamber, adopts electron beam gun facing to the shooting of metal coating materials, make metal coating materials discharge metal ion; The output rating of electron beam gun is 4-30KW;
5) metal ion releases energy while being released, and glow discharge occurs, and produces plasma body; Metal ion in plasma body accelerates to metalwork under the effect of electric field, after colliding with metalwork surface, metal ion on metalwork is spilt, and makes the metal ion in plasma body to replace on metalwork by the metal ion that spills and be deposited on metalwork and forms layer of metal film on the surface.
4. the preparation method of vacuum-coated piece according to claim 3, is characterized in that, in step 2) in, described metalwork is aluminum, and described metal targets is aluminum; Coating process parameter is as follows: vacuum tightness is 3 × 10
-3pa-5 × 10
-3pa, metalwork preheating temperature is 70-150 DEG C, and the negative voltage put in metal targets is 200-1000V, and depositing time is 50-120 minute, and the thickness of metallic film is 50 μm-80 μm.
5. the preparation method of preparation method's vacuum-coated piece of vacuum-coated piece according to claim 2, is characterized in that, in step 2) in, described rare gas element is any in helium, neon, argon, krypton, xenon.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678193.6A CN104451565A (en) | 2014-11-24 | 2014-11-24 | Preparation method for vacuum coating piece high in abrasion resistance and high in chemical stability |
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|---|---|---|---|
| CN201410678193.6A CN104451565A (en) | 2014-11-24 | 2014-11-24 | Preparation method for vacuum coating piece high in abrasion resistance and high in chemical stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931075A (en) * | 2017-11-16 | 2018-04-20 | 珠海市魅族科技有限公司 | Manufacture method, terminal enclosure and the terminal device of terminal enclosure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240423A (en) * | 2007-12-30 | 2008-08-13 | 兰州大成自动化工程有限公司 | Automobile wheel hub surface vacuum coating treatment technique |
| CN103572203A (en) * | 2012-08-07 | 2014-02-12 | 诺德轮毂制造有限公司 | Vacuum coating production process of automobile hub with high physical and chemical properties |
| CN104060224A (en) * | 2014-06-26 | 2014-09-24 | 深圳惠科精密工业有限公司 | Vacuum coating method of metal piece |
-
2014
- 2014-11-24 CN CN201410678193.6A patent/CN104451565A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240423A (en) * | 2007-12-30 | 2008-08-13 | 兰州大成自动化工程有限公司 | Automobile wheel hub surface vacuum coating treatment technique |
| CN103572203A (en) * | 2012-08-07 | 2014-02-12 | 诺德轮毂制造有限公司 | Vacuum coating production process of automobile hub with high physical and chemical properties |
| CN104060224A (en) * | 2014-06-26 | 2014-09-24 | 深圳惠科精密工业有限公司 | Vacuum coating method of metal piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931075A (en) * | 2017-11-16 | 2018-04-20 | 珠海市魅族科技有限公司 | Manufacture method, terminal enclosure and the terminal device of terminal enclosure |
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