WO2021109383A1 - Procédé de préparation d'un revêtement de cuivre épais pour rouleau de plaque - Google Patents

Procédé de préparation d'un revêtement de cuivre épais pour rouleau de plaque Download PDF

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Publication number
WO2021109383A1
WO2021109383A1 PCT/CN2020/083491 CN2020083491W WO2021109383A1 WO 2021109383 A1 WO2021109383 A1 WO 2021109383A1 CN 2020083491 W CN2020083491 W CN 2020083491W WO 2021109383 A1 WO2021109383 A1 WO 2021109383A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
copper
compressed gas
preparation
plate roller
Prior art date
Application number
PCT/CN2020/083491
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English (en)
Chinese (zh)
Inventor
黄仁忠
李继展
谢迎春
张忠诚
曾良
王高民
鲍雪球
Original Assignee
广东省新材料研究所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 广东省新材料研究所 filed Critical 广东省新材料研究所
Publication of WO2021109383A1 publication Critical patent/WO2021109383A1/fr

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Classifications

    • 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

Definitions

  • the invention relates to a method for preparing a copper coating of a large-thickness plate roller, and belongs to the technical field of printing mechanical parts manufacturing.
  • the key component of printing machinery is its plate roller, and the quality of the plate roller determines the printing level of the equipment.
  • the copper plate rollers for gravure printing are almost all prepared by electroplating.
  • the requirements for the three-dimensional impression of gravure printing are getting higher and higher, the demand for copper coating thickness has further increased, and the production efficiency of electroplating technology and the quality of thick coatings have been obviously insufficient;
  • the pressure on environmental protection increases, there is an urgent need to develop green manufacturing technologies that can replace electroplated copper.
  • cold spray technology can be cleaner, more efficient, and even lower cost to prepare thick copper-coated plate rollers in gravure printing machinery. It will have broad application prospects in the printing machinery industry.
  • the purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a method for preparing a large-thickness plate roll copper coating.
  • the present invention adopts a technical solution: a method for preparing copper coating on a large-thickness plate roller, including the following steps: the copper particles are accelerated by heating and compressed gas of the Laval tube, and the copper particles are at low temperature, high speed and complete The solid form hits the surface of the plate roll and deposits layer by layer to prepare a large-thickness plate roll copper coating.
  • the compressed gas is nitrogen or a mixed gas of nitrogen and helium.
  • the working pressure of the compressed gas is 2-25 MPa.
  • the temperature of the compressed gas is 200-1000°C.
  • the temperature of the compressed gas is 300-600°C.
  • the particle size of the copper particles is 3 to 90 ⁇ m.
  • the particle size of the copper particles is 5 to 45 ⁇ m.
  • the velocity of the copper particles at the exit of the Laval tube is 300-1300 m/s, and the temperature at which the copper ions impact the surface of the plate roll is 200-900°C.
  • the velocity of the copper particles at the exit of the Laval tube is 600-1300 m/s.
  • the distance from the Laval tube outlet to the surface of the plate roll is 10-70 mm.
  • the distance from the Laval tube outlet to the surface of the plate roller is 15 to 35 mm.
  • the thickness of the copper coating of the large-thickness plate roll is greater than 0.5 mm.
  • the beneficial effects of the present invention are: (1) green, environmentally friendly, and basically no toxic and harmful substances emission; (2) compact, the prepared coating has high density and low porosity; (3) ) Stable, the performance of the prepared coating is stable, and there is basically no hardness attenuation; (4) No limitation, the thickness of the prepared coating is not limited, and the size of the plate roll is not limited; (5) High efficiency, coating deposition High efficiency, production capacity can reach more than 20kg/h.
  • a method for preparing a copper coating on a large-thickness plate roller includes the following steps: the copper particles are accelerated by the heating and compressed gas of the Laval tube, and the copper particles impact the surface of the plate roller in a low-temperature, high-speed, and completely solid form, and the large plate is prepared by layer-by-layer deposition. Thick plate roller copper coating;
  • the compressed gas is a mixed gas of nitrogen and helium, the working pressure of the compressed gas is 3MPa, and the temperature of the compressed gas is 400°C; the size of the copper particles is 40 ⁇ m, the velocity of the copper particles at the exit of the Laval tube is 800m/s, and the copper ion
  • the temperature of the surface of the impact plate roll is 200°C, the distance from the Laval tube outlet to the surface of the plate roll is 20mm; the thickness of the copper coating of the large-thickness plate roll is 0.55mm.
  • the density of the copper coating of the plate roll prepared in this example was 99.0%, the hardness of the copper coating of the plate roll was 160 HV, and it was not decayed after 6 months of continuous use.
  • a method for preparing a copper coating on a large-thickness plate roller includes the following steps: the copper particles are accelerated by the heating and compressed gas of the Laval tube, and the copper particles impact the surface of the plate roller in a low-temperature, high-speed, and completely solid form, and the large plate is prepared by layer-by-layer deposition. Thick plate roller copper coating;
  • the compressed gas is nitrogen, the working pressure of the compressed gas is 6MPa, and the temperature of the compressed gas is 500°C; the size of the copper particles is 45 ⁇ m, the velocity of the copper particles at the exit of the Laval tube is 850m/s, and the copper ions hit the surface of the plate roll
  • the temperature is 900°C, the distance from the Laval tube outlet to the surface of the plate roll is 20mm; the thickness of the copper coating of the large-thick plate roll is 0.6mm.
  • the density of the copper coating of the plate roll prepared in this example is 99.5%, the hardness of the copper coating of the plate roll is 180HV, and it will not decay after 6 months of continuous use.
  • a method for preparing a copper coating on a large-thickness plate roller includes the following steps: the copper particles are accelerated by the heating and compressed gas of the Laval tube, and the copper particles impact the surface of the plate roller in a low-temperature, high-speed, and completely solid form, and the large plate is prepared by layer-by-layer deposition. Thick plate roller copper coating;
  • the compressed gas is a mixed gas of nitrogen and helium, the working pressure of the compressed gas is 4MPa, and the temperature of the compressed gas is 450°C; the diameter of the copper particles is 25 ⁇ m, the velocity of the copper particles at the exit of the Laval tube is 900m/s, and the copper ion
  • the temperature of the surface of the impact plate roll is 400°C, the distance from the Laval tube outlet to the surface of the plate roll is 20mm; the thickness of the copper coating of the large-thickness plate roll is 0.7mm.
  • the density of the copper coating of the plate roll prepared in this example is 99.4%, and the hardness of the copper coating of the plate roll is 210HV, and it will not fade after 6 months of continuous use.
  • a method for preparing a copper coating on a large-thickness plate roller includes the following steps: the copper particles are accelerated by the heating and compressed gas of the Laval tube, and the copper particles impact the surface of the plate roller in a low-temperature, high-speed, and completely solid form, and the large plate is prepared by layer-by-layer deposition. Thick plate roller copper coating;
  • the compressed gas is nitrogen, the working pressure of the compressed gas is 2MPa, and the temperature of the compressed gas is 200°C; the particle size of the copper particles is 3 ⁇ m, the speed of the copper particles at the exit of the Laval tube is 300m/s, and the copper ions hit the surface of the plate roll
  • the temperature is 600°C, the distance from the Laval tube outlet to the surface of the plate roll is 10mm; the thickness of the copper coating of the large-thick plate roll is 0.6mm.
  • the density of the copper coating of the plate roll prepared in this example is 96.2%, the hardness of the copper coating of the plate roll is 170 HV, and it will not decay after continuous use for 6 months.
  • a method for preparing a copper coating on a large-thickness plate roller includes the following steps: the copper particles are accelerated by the heating and compressed gas of the Laval tube, and the copper particles impact the surface of the plate roller in a low-temperature, high-speed, and completely solid form, and the large plate is prepared by layer-by-layer deposition. Thick plate roller copper coating;
  • the compressed gas is nitrogen, the working pressure of the compressed gas is 25MPa, and the temperature of the compressed gas is 1000°C; the size of the copper particles is 90 ⁇ m, the speed of the copper particles at the exit of the Laval tube is 1300m/s, and the copper ions hit the surface of the plate roll
  • the temperature is 800°C, the distance from the Laval tube outlet to the surface of the plate roll is 70mm; the thickness of the copper coating of the large-thick plate roll is 0.55mm.
  • the density of the copper coating of the plate roll prepared in this embodiment is 99.9%, the hardness of the copper coating of the plate roll is 200HV, and it will not decay after continuous use for 6 months.
  • test groups 1 to 5 and control groups 1 to 2 were set up. In the test groups 1-5 and the control groups 1-2, only the temperature of the compressed gas is different, and the other parameters are the same.
  • the temperature of the compressed gas is shown in Table 1.
  • the performance of the coatings prepared in the test groups 1 to 5 and the control groups 1 to 2 was tested, and the test results are shown in Table 1.
  • the temperature of the test group 1-5 is within the scope of the present invention, and the prepared coating has better density and hardness, and it will not fade after 6 months of continuous use; the temperature of the control group 1-2 is not Within the scope of the present invention, the density, hardness and attenuation resistance of the prepared coating are not as good as those of the present invention.
  • the performance data of test groups 2 to 4 is the best, that is, when the temperature of the compressed gas is 300-600°C, the prepared coating has better density, hardness and anti-attenuation performance.
  • test groups 1 to 5 and control groups 1 to 2 were set up.
  • the experimental groups 1-5 and the control groups 1-2 only the speed of the copper particles at the exit of the Laval tube is different, and the other parameters are the same.
  • the speed of the copper particles at the exit of the Laval tube is shown in Table 2.
  • the performance of the coatings prepared in the test groups 1-5 and the control groups 1-2 were tested, and the test results are shown in Table 2.
  • Test group 2 600 99.1% 190HV More than 6 months Test group 3 1000 99.4% 200HV More than 6 months Test group 4 1300 99.5% 210HV More than 6 months Control group 1 200 94.6% 120HV 3 months
  • test groups 1 to 4 are within the scope of the present invention, and the prepared coatings have better density and hardness, and do not attenuate after 6 months of continuous use; the speed of control group 1 is not in the present invention. Within the range of, the density, hardness and attenuation resistance of the prepared coating are not as good as the present invention.
  • performance data of test groups 2 to 4 are the best, that is, when the velocity of the copper particles at the exit of the Laval tube is 600-1300 m/s, the prepared coating has better density, hardness and anti-attenuation performance .

Landscapes

  • 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

Il est prévu un procédé de préparation d'un revêtement de cuivre épais pour un rouleau de plaque, se rapportant au domaine technique de la fabrication de pièces de machine d'impression. Le procédé de préparation du revêtement de cuivre épais pour le rouleau de plaque consiste à : accélérer des particules de cuivre par chauffage et compression d'un gaz en utilisant une tuyère de Laval, les particules de cuivre frappant la surface du rouleau de plaque à basse température, à vitesse élevée et sous une forme entièrement solide, et à produire le revêtement de cuivre épais au moyen d'un dépôt couche par couche. La présente invention présente les avantages suivants : elle est écologique et n'émet pas de substances toxiques ou nocives ; la structure de revêtement est dense et peu poreuse ; le revêtement est stable et n'est pas sujet à la perte de dureté ; l'épaisseur du revêtement et la taille du rouleau ne sont pas limitées ; et l'efficacité de dépôt est élevée, ce qui permet d'atteindre une capacité de production d'au moins 20 kg/h.
PCT/CN2020/083491 2019-12-04 2020-04-07 Procédé de préparation d'un revêtement de cuivre épais pour rouleau de plaque WO2021109383A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911229002.7A CN110952083B (zh) 2019-12-04 2019-12-04 一种大厚度版辊铜涂层的制备方法
CN201911229002.7 2019-12-04

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WO2021109383A1 true WO2021109383A1 (fr) 2021-06-10

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WO (1) WO2021109383A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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CN110952083B (zh) * 2019-12-04 2021-03-05 广东省新材料研究所 一种大厚度版辊铜涂层的制备方法

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US20090301328A1 (en) * 2005-12-23 2009-12-10 Commonwealth Scientific And Industrial Research Organinsation Manufacture of printing cylinders
US8936830B2 (en) * 2010-12-14 2015-01-20 Femvix Corp. Apparatus and method for continuous powder coating
CN105862034A (zh) * 2016-06-14 2016-08-17 浙江工业大学 一种超音速激光沉积同轴送粉装置
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CN110952083B (zh) 2021-03-05

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