CN110952083A - Preparation method of large-thickness printing roller copper coating - Google Patents
Preparation method of large-thickness printing roller copper coating Download PDFInfo
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- CN110952083A CN110952083A CN201911229002.7A CN201911229002A CN110952083A CN 110952083 A CN110952083 A CN 110952083A CN 201911229002 A CN201911229002 A CN 201911229002A CN 110952083 A CN110952083 A CN 110952083A
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- copper
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Printing Plates And Materials Therefor (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention relates to a preparation method of a large-thickness plate roller copper coating, and belongs to the technical field of printing machine part manufacturing. The preparation method of the large-thickness plate roller copper coating comprises the following steps: and accelerating copper particles by heating and compressing gas of a Laval tube, impacting the copper particles on the surface of the plate roller in a low-temperature, high-speed and completely solid state manner, and depositing layer by layer to prepare the copper coating of the large-thickness plate roller. The invention has the following advantages: the environment is friendly, and no toxic or harmful substance is discharged; the coating has compact structure and low porosity; the coating has stable performance and basically has no hardness attenuation; the thickness of the coating is not limited, and the size of the printing roller is not limited; the coating deposition efficiency is high, and the production capacity can reach more than 20 kg/h.
Description
Technical Field
The invention relates to a preparation method of a large-thickness plate roller copper coating, and belongs to the technical field of printing machine part manufacturing.
Background
The key component of a printing machine is its plate roll, the quality of which determines the printing level of the equipment. At present, copper plate rollers for gravure printing are almost all prepared by electroplating, the requirement on the thickness of a copper coating is further increased along with the higher and higher requirement on the stereoscopic impression of gravure printing, and the production efficiency of an electroplating technology and the quality of a thick coating have obvious defects; on the other hand, with the increase of environmental protection pressure, there is also a strong demand for development of green manufacturing technology that can replace the electrolytic copper plating. The cold spraying technology is used as a green manufacturing technology for replacing electroplating, can prepare a thick copper coating roller in gravure printing machinery more cleanly and more efficiently, and even has lower cost, and has wide application prospect in the printing machinery industry.
The development of a novel preparation method of the large-thickness copper coating of the printing roller aims to overcome the defects of the large-thickness copper coating of the current electroplated printing roller and realize the green, efficient and high-quality preparation of the copper coating of the printing roller, and is a problem which is urgently needed to be solved at present.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a preparation method of a large-thickness plate roller copper coating.
In order to achieve the purpose, the invention adopts the technical scheme that: a preparation method of a large-thickness plate roller copper coating comprises the following steps: and accelerating copper particles by heating and compressing gas of a Laval tube, impacting the copper particles on the surface of the plate roller in a low-temperature, high-speed and completely solid state manner, and depositing layer by layer to prepare the copper coating of the large-thickness plate roller.
As a preferred embodiment of the preparation method of the present invention, the compressed gas is nitrogen or a nitrogen-helium mixed gas.
As a preferable embodiment of the preparation method, the working pressure of the compressed gas is 2-25 MPa.
In a preferred embodiment of the preparation method of the present invention, the temperature of the compressed gas is 200 to 1000 ℃.
Preferably, the temperature of the compressed gas is 300-600 ℃.
In a preferred embodiment of the production method of the present invention, the copper particles have a particle size of 3 to 90 μm.
Preferably, the particle size of the copper particles is 5 to 45 μm.
As a preferable embodiment of the preparation method, the speed of the copper particles at the outlet of the Laval tube is 300-1300 m/s, and the temperature of the copper ions impacting the surface of the plate roller is 200-900 ℃.
Preferably, the speed of the copper particles at the outlet of the Laval tube is 600-1300 m/s.
In a preferred embodiment of the production method of the present invention, the distance from the outlet of the laval tube to the surface of the plate roll is 10 to 70 mm.
Preferably, the distance between the outlet of the Laval tube and the surface of the plate roller is 15-35 mm.
As a preferable embodiment of the preparation method, the thickness of the copper coating of the large-thickness plate roller is more than 0.5 mm.
Compared with the prior art, the invention has the beneficial effects that: (1) the environment is protected, and basically no toxic or harmful substance is discharged; (2) the compactness is realized, and the prepared coating has high density and low porosity; (3) the prepared coating has stable performance and basically has no hardness attenuation; (4) the method is not limited, the thickness of the prepared coating is not limited, and the size of the plate roller is not limited; (5) high efficiency, high coating deposition efficiency and high production capacity of more than 20 kg/h.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
Example 1
A preparation method of a large-thickness plate roller copper coating comprises the following steps: accelerating copper particles by heating and compressing gas of a Laval tube, impacting the copper particles on the surface of the printing roller in a low-temperature, high-speed and complete solid state mode, and depositing layer by layer to prepare a large-thickness copper coating of the printing roller;
the compressed gas is nitrogen-helium mixed gas, the working pressure of the compressed gas is 3MPa, and the temperature of the compressed gas is 400 ℃; the particle size of the copper particles is 40 mu m, the speed of the copper particles at the outlet of the Laval tube is 800m/s, the temperature of copper ions impacting the surface of the plate roller is 200 ℃, and the distance from the outlet of the Laval tube to the surface of the plate roller is 20 mm; the thickness of the copper coating of the large-thickness plate roller is 0.55 mm.
The density of the copper coating of the printing roller prepared by the embodiment is 99.0%, the hardness of the copper coating of the printing roller is 160HV, and the copper coating does not attenuate after being continuously used for 6 months.
Example 2
A preparation method of a large-thickness plate roller copper coating comprises the following steps: accelerating copper particles by heating and compressing gas of a Laval tube, impacting the copper particles on the surface of the printing roller in a low-temperature, high-speed and complete solid state mode, and depositing layer by layer to prepare a large-thickness copper coating of the printing roller;
the compressed gas is nitrogen, the working pressure of the compressed gas is 6MPa, and the temperature of the compressed gas is 500 ℃; the particle size of the copper particles is 45 mu m, the speed of the copper particles at the outlet of the Laval tube is 850m/s, the temperature of copper ions impacting the surface of the plate roller is 900 ℃, and the distance from the outlet of the Laval tube to the surface of the plate roller is 20 mm; the thickness of the copper coating of the large-thickness plate roller is 0.6 mm.
The density of the copper coating of the printing roller prepared by the embodiment is 99.5%, the hardness of the copper coating of the printing roller is 180HV, and the copper coating does not attenuate after being continuously used for 6 months.
Example 3
A preparation method of a large-thickness plate roller copper coating comprises the following steps: accelerating copper particles by heating and compressing gas of a Laval tube, impacting the copper particles on the surface of the printing roller in a low-temperature, high-speed and complete solid state mode, and depositing layer by layer to prepare a large-thickness copper coating of the printing roller;
the compressed gas is nitrogen-helium mixed gas, the working pressure of the compressed gas is 4MPa, and the temperature of the compressed gas is 450 ℃; the particle size of the copper particles is 25 mu m, the speed of the copper particles at the outlet of the Laval tube is 900m/s, the temperature of copper ions impacting the surface of the plate roller is 400 ℃, and the distance from the outlet of the Laval tube to the surface of the plate roller is 20 mm; the thickness of the copper coating of the large-thickness plate roller is 0.7 mm.
The density of the copper coating of the printing roller prepared by the embodiment is 99.4%, the hardness of the copper coating of the printing roller is 210HV, and the copper coating does not attenuate after being continuously used for 6 months.
Example 4
A preparation method of a large-thickness plate roller copper coating comprises the following steps: accelerating copper particles by heating and compressing gas of a Laval tube, impacting the copper particles on the surface of the printing roller in a low-temperature, high-speed and complete solid state mode, and depositing layer by layer to prepare a large-thickness copper coating of the printing roller;
the compressed gas is nitrogen, the working pressure of the compressed gas is 2MPa, and the temperature of the compressed gas is 200 ℃; the particle size of the copper particles is 3 mu m, the speed of the copper particles at the outlet of the Laval tube is 300m/s, the temperature of copper ions impacting the surface of the plate roller is 600 ℃, and the distance from the outlet of the Laval tube to the surface of the plate roller is 10 mm; the thickness of the copper coating of the large-thickness plate roller is 0.6 mm.
The density of the copper coating of the plate roller prepared by the embodiment is 96.2%, the hardness of the copper coating of the plate roller is 170HV, and the copper coating of the plate roller is not attenuated after being continuously used for 6 months.
Example 5
A preparation method of a large-thickness plate roller copper coating comprises the following steps: accelerating copper particles by heating and compressing gas of a Laval tube, impacting the copper particles on the surface of the printing roller in a low-temperature, high-speed and complete solid state mode, and depositing layer by layer to prepare a large-thickness copper coating of the printing roller;
the compressed gas is nitrogen, the working pressure of the compressed gas is 25MPa, and the temperature of the compressed gas is 1000 ℃; the particle size of the copper particles is 90 mu m, the speed of the copper particles at the outlet of the Laval tube is 1300m/s, the temperature of copper ions impacting the surface of the plate roller is 800 ℃, and the distance from the outlet of the Laval tube to the surface of the plate roller is 70 mm; the thickness of the copper coating of the large-thickness plate roller is 0.55 mm.
The density of the copper coating of the printing roller prepared by the embodiment is 99.9%, the hardness of the copper coating of the printing roller is 200HV, and the copper coating of the printing roller is not attenuated after being continuously used for 6 months.
Effect example 1
In order to investigate the influence of the temperature of compressed gas on the performance of the prepared coating, test groups 1-5 and control groups 1-2 are provided. In the test groups 1 to 5 and the control groups 1 to 2, only the temperature of the compressed gas was different, and the conditions of other parameters were the same, and the temperature of the compressed gas was as shown in table 1. And the performance of the coatings prepared by the test groups 1-5 and the control groups 1-2 is tested, and the test results are shown in table 1.
TABLE 1
| Temperature of compressed gas (. degree.C.) | Compactness of coating | Hardness of coating | Hardness decay | |
| Test group 1 | 200 | 96.2％ | 160HV | More than 6 months |
| Test group 2 | 300 | 99.1％ | 210HV | More than 6 months |
| Test group 3 | 500 | 99.5％ | 200HV | More than 6 months |
| Test group 4 | 600 | 99.3％ | 190HV | More than 6 months |
| Test group 5 | 1000 | 97.9％ | 170HV | More than 6 months |
| Control group 1 | 100 | 93.2％ | 110HV | 4 months old |
| Control group 2 | 1100 | 95.2 | 140HV | For 5 months |
As can be seen from Table 1, the temperature of the test group 1-5 is within the range of the invention, and the prepared coating has good compactness and hardness and does not decay after being continuously used for 6 months; the temperature of the comparison group 1-2 is not in the range of the invention, and the density, hardness and anti-attenuation performance of the prepared coating are inferior to the invention. In addition, the performance data of the test groups 2-4 are optimal, namely when the temperature of the compressed gas is 300-600 ℃, the prepared coating has better compactness, hardness and anti-attenuation performance.
Effect example 2
In order to investigate the influence of the speed of copper particles at the outlet of the Laval tube on the performance of the prepared coating, test groups 1-5 and control groups 1-2 are set. In the test groups 1 to 5 and the control groups 1 to 2, only the velocities of the copper particles at the laval tube outlet were different, and other parameter conditions were the same, and the velocities of the copper particles at the laval tube outlet were as shown in table 2. And the performance of the coatings prepared by the test groups 1-5 and the control groups 1-2 is tested, and the test results are shown in table 2.
TABLE 2
As can be seen from Table 2, the speed of the test group 1-4 is within the range of the invention, and the prepared coating has better compactness and hardness and does not attenuate after being continuously used for 6 months; the speed of the control group 1 is out of the range of the invention, and the density, hardness and anti-attenuation performance of the prepared coating are inferior to the invention. And the performance data of the test groups 2-4 are optimal, namely when the speed of the copper particles at the outlet of the Laval tube is 600-1300 m/s, the prepared coating has better compactness, hardness and anti-attenuation performance.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A preparation method of a large-thickness plate roller copper coating is characterized by comprising the following steps: and accelerating copper particles by heating and compressing gas of a Laval tube, impacting the copper particles on the surface of the plate roller in a low-temperature, high-speed and completely solid state manner, and depositing layer by layer to prepare the copper coating of the large-thickness plate roller.
2. The method of claim 1, wherein the compressed gas is nitrogen or a mixture of nitrogen and helium.
3. The method according to claim 1, wherein the compressed gas has an operating pressure of 2 to 25 MPa.
4. The method according to claim 1, wherein the compressed gas has a temperature of 200 to 1000 ℃.
5. The method according to claim 4, wherein the compressed gas has a temperature of 300 to 600 ℃.
6. The method according to claim 1, wherein the copper particles have a particle size of 3 to 90 μm.
7. The method according to claim 1, wherein the velocity of the copper particles at the outlet of the laval tube is 300 to 1300m/s, and the temperature at which the copper ions impinge on the surface of the roll is 200 to 900 ℃.
8. The method according to claim 7, wherein the velocity of the copper particles at the outlet of the Laval tube is 600 to 1300 m/s.
9. The method of claim 1, wherein the distance from the outlet of the laval tube to the surface of the roll is 10 to 70 mm.
10. The method of claim 1, wherein the high gauge version roll copper coating has a thickness greater than 0.5 mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229002.7A CN110952083B (en) | 2019-12-04 | 2019-12-04 | Preparation method of large-thickness printing roller copper coating |
| PCT/CN2020/083491 WO2021109383A1 (en) | 2019-12-04 | 2020-04-07 | Method for preparing thick copper coating for plate roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229002.7A CN110952083B (en) | 2019-12-04 | 2019-12-04 | Preparation method of large-thickness printing roller copper coating |
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| Publication Number | Publication Date |
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| CN110952083A true CN110952083A (en) | 2020-04-03 |
| CN110952083B CN110952083B (en) | 2021-03-05 |
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| CN201911229002.7A Active CN110952083B (en) | 2019-12-04 | 2019-12-04 | Preparation method of large-thickness printing roller copper coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109383A1 (en) * | 2019-12-04 | 2021-06-10 | 广东省新材料研究所 | Method for preparing thick copper coating for plate roller |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2093243A1 (en) * | 2008-02-01 | 2009-08-26 | Samsung Electronics Co., Ltd. | Composition, anti-oxide film including the same, electronic component including the anti-oxide film, and methods for forming the anti-oxide film and electronic component |
| EP2371994A1 (en) * | 2010-03-29 | 2011-10-05 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Method for making a stainless-steel coating on a copper matrix |
| US20160024633A1 (en) * | 2008-12-12 | 2016-01-28 | National Research Council Of Canada | Cold Gas Dynamic Spray Apparatus, System and Method |
| CN105880935A (en) * | 2015-01-26 | 2016-08-24 | 上海运城制版有限公司 | Manufacturing method for intaglio roller |
| CN106863997A (en) * | 2017-03-07 | 2017-06-20 | 龙游运申制版有限公司 | A kind of ink covers the preparation technology of forme roller |
| CN107020793A (en) * | 2017-03-30 | 2017-08-08 | 绍兴青运激光制版有限公司 | A kind of preparation technology of printing roller |
| CN207984418U (en) * | 2018-03-13 | 2018-10-19 | 泉州运城制版有限公司 | A kind of process equipment of engraving roller registering line position |
| CN109112585A (en) * | 2017-06-22 | 2019-01-01 | 海门市源美美术图案设计有限公司 | A kind of roller copper plating bath |
| CN109735839A (en) * | 2019-01-14 | 2019-05-10 | 西安建筑科技大学 | A kind of method that fatigue crack is repaired in cold spraying |
| CN109943842A (en) * | 2019-03-26 | 2019-06-28 | 西安交通大学 | The processing method and metal-base composites of material surface high hardness wear-resisting composite layer |
| CN209619498U (en) * | 2019-03-04 | 2019-11-12 | 厦门佰事兴新材料科技有限公司 | A kind of conductive rollers |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050025896A1 (en) * | 2003-08-01 | 2005-02-03 | Grigoriy Grinberg | Thermal spray metal on low heat resistant substrates |
| WO2007070939A1 (en) * | 2005-12-23 | 2007-06-28 | Commonwealth Scientific And Industrial Research Organisation | Manufacture of printing cylinders |
| US8936830B2 (en) * | 2010-12-14 | 2015-01-20 | Femvix Corp. | Apparatus and method for continuous powder coating |
| CN105862034B (en) * | 2016-06-14 | 2018-11-13 | 浙江工业大学 | A kind of supersonic speed laser deposition coaxial powder feeding apparatus |
| CN107323035A (en) * | 2017-07-07 | 2017-11-07 | 江苏欧钛克复合材料技术有限公司 | A kind of application of composite material roller |
| CN110952083B (en) * | 2019-12-04 | 2021-03-05 | 广东省新材料研究所 | Preparation method of large-thickness printing roller copper coating |
-
2019
- 2019-12-04 CN CN201911229002.7A patent/CN110952083B/en active Active
-
2020
- 2020-04-07 WO PCT/CN2020/083491 patent/WO2021109383A1/en active Application Filing
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2093243A1 (en) * | 2008-02-01 | 2009-08-26 | Samsung Electronics Co., Ltd. | Composition, anti-oxide film including the same, electronic component including the anti-oxide film, and methods for forming the anti-oxide film and electronic component |
| US20140048318A1 (en) * | 2008-02-01 | 2014-02-20 | Samsung Electronics Co., Ltd. | Composition, anti-oxide film including the same, electronic component including the anti-oxide film, and methods for forming the anti-oxide film and electronic component |
| US20160024633A1 (en) * | 2008-12-12 | 2016-01-28 | National Research Council Of Canada | Cold Gas Dynamic Spray Apparatus, System and Method |
| EP2371994A1 (en) * | 2010-03-29 | 2011-10-05 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Method for making a stainless-steel coating on a copper matrix |
| CN105880935A (en) * | 2015-01-26 | 2016-08-24 | 上海运城制版有限公司 | Manufacturing method for intaglio roller |
| CN106863997A (en) * | 2017-03-07 | 2017-06-20 | 龙游运申制版有限公司 | A kind of ink covers the preparation technology of forme roller |
| CN107020793A (en) * | 2017-03-30 | 2017-08-08 | 绍兴青运激光制版有限公司 | A kind of preparation technology of printing roller |
| CN109112585A (en) * | 2017-06-22 | 2019-01-01 | 海门市源美美术图案设计有限公司 | A kind of roller copper plating bath |
| CN207984418U (en) * | 2018-03-13 | 2018-10-19 | 泉州运城制版有限公司 | A kind of process equipment of engraving roller registering line position |
| CN109735839A (en) * | 2019-01-14 | 2019-05-10 | 西安建筑科技大学 | A kind of method that fatigue crack is repaired in cold spraying |
| CN209619498U (en) * | 2019-03-04 | 2019-11-12 | 厦门佰事兴新材料科技有限公司 | A kind of conductive rollers |
| CN109943842A (en) * | 2019-03-26 | 2019-06-28 | 西安交通大学 | The processing method and metal-base composites of material surface high hardness wear-resisting composite layer |
Non-Patent Citations (3)
| Title |
|---|
| RUI DING ET AL.: "Antifouling Properties and Release of Dissolved Copper of Cold Spray Cu/Cu2O Coatings for Ships and Steel Structures in Marine Environment", 《JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE》 * |
| 邓修绪: "影响造纸机钢辊镀铜质量因素浅析", 《电镀与环保》 * |
| 霍会芳: "凹印版辊镀铜和重新制作工艺", 《中国包装》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109383A1 (en) * | 2019-12-04 | 2021-06-10 | 广东省新材料研究所 | Method for preparing thick copper coating for plate roller |
Also Published As
| Publication number | Publication date |
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| WO2021109383A1 (en) | 2021-06-10 |
| CN110952083B (en) | 2021-03-05 |
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Address after: 510000 363 Changxin Road, Tianhe District, Guangzhou, Guangdong. Patentee after: Institute of new materials, Guangdong Academy of Sciences Address before: 510000 363 Changxin Road, Tianhe District, Guangzhou, Guangdong. Patentee before: Guangdong Institute of new materials |