Crystal distribution pretreatment method for preparing diamond coating on hard alloy surface
The invention relates to a crystal distribution pretreatment method for preparing a diamond coating on the surface of hard alloy, which adopts tungsten cobalt hard alloy subjected to acid-base pretreatment as a coating substrate material and applies an electrophoresis-assisted electrostatic self-assembly crystal distribution method. And coating a layer of dense and uniform diamond seed crystals on the surface of the substrate material: firstly preparing a nano-diamond suspension containing a stabilizer and having a specific pH value, then putting the substrate into an electrophoresis device containing the suspension for crystal planting, and then washing and drying. According to the method, an electrophoresis-assisted electrostatic self-assembly crystal distribution technology is adopted as one of pretreatment technological processes for growth of the chemical vapor deposition diamond coating, high-density uniform crystal distribution can be achieved on the surface of a substrate material in any complex shape, and the subsequent diamond nucleation time is shortened; the diamond coating which is uniform in deposition thickness and quality and excellent in adhesive force is achieved, the service life of an original coating tool is greatly prolonged, and great significance is achieved for guaranteeing efficient use of the coating tool and improving the product quality..
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Patent| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Europäisches Patentamt - (2024) vom: 09. Jan. Zur Gesamtaufnahme - year:2024 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
WANG XINCHANG [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| Anmerkungen: |
Source: www.epo.org (no modifications made), First posted: 2024-01-09, Last update posted on www.tib.eu: 2024-03-25, Last updated: 2024-03-29 |
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| Patentnummer: |
CN117364051 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
EPA001065793 |
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| 245 | 1 | 0 | |a Crystal distribution pretreatment method for preparing diamond coating on hard alloy surface |
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| 520 | |a The invention relates to a crystal distribution pretreatment method for preparing a diamond coating on the surface of hard alloy, which adopts tungsten cobalt hard alloy subjected to acid-base pretreatment as a coating substrate material and applies an electrophoresis-assisted electrostatic self-assembly crystal distribution method. And coating a layer of dense and uniform diamond seed crystals on the surface of the substrate material: firstly preparing a nano-diamond suspension containing a stabilizer and having a specific pH value, then putting the substrate into an electrophoresis device containing the suspension for crystal planting, and then washing and drying. According to the method, an electrophoresis-assisted electrostatic self-assembly crystal distribution technology is adopted as one of pretreatment technological processes for growth of the chemical vapor deposition diamond coating, high-density uniform crystal distribution can be achieved on the surface of a substrate material in any complex shape, and the subsequent diamond nucleation time is shortened; the diamond coating which is uniform in deposition thickness and quality and excellent in adhesive force is achieved, the service life of an original coating tool is greatly prolonged, and great significance is achieved for guaranteeing efficient use of the coating tool and improving the product quality. | ||
| 650 | 4 | |a mas | |
| 650 | 4 | |a phy | |
| 650 | 4 | |a 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 (making metal-coated products by extrusion b21c0023220000;covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. b21d0039000000, b23k;metallising of glass c03c;metallising mortars, concrete, artificial stone, ceramics or natural stone c04b0041000000;enamelling of, or applying a vitreous layer to, metals c23d;treating metal surfaces or coating of metals by electrolysis or electrophoresis c25d;single-crystal film growth c30b;by metallising textiles d06m0011830000;decorating textiles by locally metallising d06q0001040000) | |
| 650 | 4 | |a C23G: Cleaning or de-greasing of metallic material by chemical methods other than electrolysis (polishing compositions c09g;detergents in general c11d) | |
| 650 | 4 | |a che | |
| 650 | 4 | |a B82Y: Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures | |
| 650 | 4 | |a C23F: Non-mechanical removal of metallic material from surfaces (working of metal by electro-erosion b23h;desurfacing by applying flames b23k0007000000;working metal by laser beam b23k0026000000); inhibiting corrosion of metallic material; inhibiting incrustation in general (treating metal surfaces or coating of metals by electrolysis or electrophoresis c25d, c25f); multi-step processes for surface treatment of metallic material involving at least one process provided for in class c23 and at least one process covered by subclass c21d or c22f or class c25 | |
| 650 | 4 | |a C25D: Processes for the electrolytic or electrophoretic production of coatings; electroforming (manufacturing printed circuits by metal deposition h05k0003180000); joining workpieces by electrolysis; apparatus therefor (anodic or cathodic protection c23f0013000000;single-crystal growth c30b) | |
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