CN114101010A - Method for marking part, application and part with mark - Google Patents
Method for marking part, application and part with mark Download PDFInfo
- Publication number
- CN114101010A CN114101010A CN202111274719.0A CN202111274719A CN114101010A CN 114101010 A CN114101010 A CN 114101010A CN 202111274719 A CN202111274719 A CN 202111274719A CN 114101010 A CN114101010 A CN 114101010A
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- Prior art keywords
- paint film
- nano composite
- composite ceramic
- ceramic coating
- curing
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000003973 paint Substances 0.000 claims abstract description 73
- 239000002114 nanocomposite Substances 0.000 claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 238000005530 etching Methods 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 238000005524 ceramic coating Methods 0.000 claims description 29
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 16
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 12
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 239000002562 thickening agent Substances 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 159000000000 sodium salts Chemical class 0.000 claims description 7
- 238000010329 laser etching Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical group [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 5
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 4
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 3
- JSYPRLVDJYQMAI-ODZAUARKSA-N (z)-but-2-enedioic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)\C=C/C(O)=O JSYPRLVDJYQMAI-ODZAUARKSA-N 0.000 claims description 3
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 3
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- OHAPIZYOVBUCCX-UHFFFAOYSA-N amino(methoxy)silicon Chemical compound CO[Si]N OHAPIZYOVBUCCX-UHFFFAOYSA-N 0.000 claims description 3
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 3
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 3
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 229920002845 Poly(methacrylic acid) Polymers 0.000 claims description 2
- -1 amine salt Chemical class 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical group [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 8
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 6
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 229910000420 cerium oxide Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 3
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 description 3
- 229910003447 praseodymium oxide Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910000311 lanthanide oxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2203/00—Other substrates
- B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a method for marking parts, application and parts with marks, wherein the method comprises the following steps: 1) spraying nano composite ceramic paint on the surface of the part to be marked, and curing to form a paint film; 2) and etching the paint film according to the target identification pattern. The high-temperature-resistant paint film is adopted, so that the paint film does not fall off in the subsequent processing process; the paint film thickness can be controlled, and the paint film has enough adhesive strength; the paint film is self-dried or dried, and is convenient to use; the laser burned and etched peeled paint film has clear contrast and machine readable performance, is suitable for marking metal parts and parts with deep color, and realizes traceability management.
Description
Technical Field
The invention relates to the technical field of product identification, in particular to a method for identifying a part, application and the part with an identification.
Background
In the processes of receiving, producing and serving, in order to prevent the products of different types and specifications from being used in a mixed or wrong way, ensure that the product quality forming process is traced when needed, and effectively identify and isolate the products, the products need to be identified.
In general, a unique label is provided for a part by directly spraying a bar code or a two-dimensional code on the part, so that the single tracing requirement of the part in the production process is met, but the conditions of clear code spraying and machine readable property are met. However, when a mark is directly sprayed on a metal part and a part with a deep color, such as SiC, due to the reflection phenomenon existing on the surface of the metal and the dark color of the metal after oxidation, the readability of the mark is deteriorated, even the machine cannot recognize the mark, and the traceable management of the part is influenced. Therefore, the method for finding the identification suitable for the metal parts and the parts with deep color has important research significance.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a method and an application for marking a part, and a part with a mark, which are used to solve the problems in the prior art that when a code-spraying mark is used on a metal part or a deep-colored part, the readability of the mark is deteriorated and even the machine cannot recognize the mark due to the reflection phenomenon and the too deep color of the metal surface.
To achieve the above objects and other related objects, the present invention includes the following technical solutions.
The invention provides a method for marking parts, which comprises the following steps:
1) spraying nano composite ceramic paint on the surface of the part to be marked, and drying to form a paint film;
2) and etching the paint film according to the target identification pattern.
Preferably, in the step 1), the spraying speed is 100-150 ml/min, such as 100ml/min, 110ml/min, 120ml/min, 130ml/min, 140ml/min, 150 ml/min. The paint film obtained within the spraying speed range is smooth and uniform, paint splashing is caused by overlarge spraying speed, and paint dripping is caused by overlarge spraying speed.
Preferably, in the step 1), the thickness of the paint film is 50-100 μm, such as 50-60 μm, 60-70 μm, 80-90 μm, and 90-100 μm. Drying is affected by too thick paint film thickness, so that the bonding force between the coating foaming and the substrate is poor; if the thickness is too thin, the next etching and marking process cannot be carried out.
Preferably, in the step 1), the curing temperature is 250-300 ℃, for example, 250 ℃, 280 ℃, 300 ℃, and the curing time is 0.5-1 h.
Preferably, in step 2), the etching is laser etching.
Preferably, in the step 2), the temperature for etching the paint film is 2980-3500 ℃, such as 2980 ℃, 3000 ℃ and 3500 ℃.
More preferably, in the step 1), before spraying, the surface of the part to be marked is cleaned by absolute ethyl alcohol, and then dried by compressed air.
Preferably, the laser wavelength is 1050-1075 nm, such as 1060nm, 1064nm and 1070 nm; the peak power is 50-70 kW, such as 50kW, 60kW and 70 kW; the repetition frequency is 1-30 kHz, such as 1-10 kHz, 10-20 kHz and 20-30 kHz; the diameter of the light spot is less than 70 μm, the moving step length is less than 2 μm, and the marking speed is less than 7000 mm/s.
Preferably, the laser etching is laser scribing etching or laser dot matrix etching.
Preferably, a laser coding machine is adopted for etching, and a target identification pattern is pre-introduced into the laser coding machine before etching.
In the technical scheme of the application, the target identification pattern is pre-introduced into the laser coding machine, the laser emitted by the laser coding machine heats the paint film to raise the surface temperature of the paint film, and when the temperature reaches the melting point of the paint film, the paint film is melted; and when the surface temperature of the paint film material is continuously heated to the gasification temperature, the paint film is gasified. When the paint film burned by the laser beam is gasified, the dark background of the part is exposed, and the required bar code or two-dimensional code is formed.
Preferably, the nano composite ceramic coating is prepared from the following raw material components in percentage by mass based on the total mass of the nano composite ceramic coating: 5-10 wt% of styrene-acrylic emulsion, 4-40 wt% of aluminum oxide, 5-30 wt% of zirconium oxide, 5-35 wt% of rare earth oxide, 5-10 wt% of inorganic binder, 0.1-0.3 wt% of acrylate dispersant, 0.1-0.3 wt% of thickening agent and the balance of water. The sum of all the components is 100 percent.
The paint film formed by the paint with the formula is a high-temperature-resistant paint film and a light-color paint film, and has higher discrimination with the natural color of a part to be marked.
Preferably, the solid content of the styrene-acrylic emulsion is 40-50%, and the viscosity range is 1500-4000 mpa.s (25 ℃).
Preferably, the rare earth oxide is selected from one or more of scandium, yttrium and lanthanide oxides.
Preferably, the inorganic binder is selected from one or a combination of two or more of silica sol, alumina sol, water glass, silicate, phosphate and borate.
More preferably, the solid content of the silica sol is 5-50%, such as 5-15%, 15-25%, 30-40%, 40-50%.
More preferably, the solid content of the aluminum sol is 5-30%, such as 5-10%, 10-15%, 15-20%, 20-30%.
More preferably, the solid content of the water glass is 20-50%, such as 20-30%, 30-40%, 40-50%.
Preferably, the acrylate dispersant is selected from one or more of polyacrylic acid sodium salt, polyacrylic acid amine salt, polymethacrylic acid sodium salt, maleic acid-acrylic acid copolymer sodium salt and polyacrylamide.
Preferably, the thickener is one or two of hydroxymethyl cellulose and hydroxyethyl cellulose.
Preferably, the nano composite ceramic coating is prepared by a method comprising the following steps: firstly, uniformly mixing styrene-acrylic emulsion, alumina, zirconia, rare earth oxide and an inorganic binder; then adding acrylate dispersant and thickener, mixing uniformly, finally adding water, mixing uniformly.
More preferably, the nanocomposite ceramic coating is prepared by a method comprising the steps of: stirring the styrene-acrylic emulsion, the alumina, the zirconia, the rare earth oxide and the inorganic binder for 1-3 hours by adopting a variable frequency dispersion machine at the rotating speed of 600-9000 revolutions per minute, and uniformly mixing; then adding an acrylate dispersant and a thickening agent, and stirring for 1-2 hours at a rotating speed of 500-11000 r/min by using a variable frequency dispersing machine to uniformly mix; and finally adding water, and stirring for 2-3 hours at a rotating speed of 500-700 revolutions per minute by using a variable frequency dispersion machine to uniformly mix.
Preferably, in the step 1), before spraying, a curing agent is added into the nano composite ceramic coating and uniformly mixed; the curing agent is an aminosilane. The principle of the method is that when the coating is sprayed on the surface of a part to be marked, the aminosilane curing agent is exposed in the air and undergoes hydrolysis reaction with water molecules in the air to generate silanol, and then undergoes crosslinking polycondensation reaction to obtain silica chain links, so that a network crosslinking structure is formed, the rapid formation of the paint film is promoted, and the curing temperature of the paint film is greatly reduced.
Preferably, the aminosilane is selected from one or more of aminopropyltrimethoxysilane, aminomethoxysilane and aminopropyltriethoxysilane.
Preferably, the addition amount of the curing agent is 0.5-1 wt% of the total mass of the nano composite ceramic coating, such as 0.5 wt%, 0.8 wt% and 1 wt%.
Preferably, the curing temperature is 20-30 ℃, such as 20 ℃, 25 ℃, 30 ℃, and the curing time is 2-24 hours, such as 5 hours, 10 hours, 15 hours, 20 hours, and 24 hours.
Preferably, the material of the part to be marked is metal or SiC.
The invention also provides the use of the method as described above for part identification.
Preferably, the material of the part is metal or SiC.
The invention also provides a part with a mark, wherein the part is made of metal or SiC, the surface of the part is provided with the mark, and the mark is a nano composite ceramic paint film with an etched pattern.
As mentioned above, the method for marking parts, the application and the parts with marks of the invention have the following advantages: the high-temperature resistant paint film is adopted, so that the paint film does not fall off in the subsequent processing process; the paint film thickness can be controlled, and the paint film has enough adhesive strength; the paint film is self-dried or dried, and is convenient to use; the laser burned and etched peeled paint film has clear contrast and machine readable performance, is suitable for marking metal parts and parts with deep color, and realizes traceability management.
Drawings
FIG. 1 is a schematic view of the features of the process of identifying parts according to the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Before the present embodiments are further described, it is to be understood that the scope of the invention is not limited to the particular embodiments described below; it is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any value therebetween can be selected unless the invention otherwise indicated. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition to the specific methods, devices, and materials used in the examples, any methods, devices, and materials similar or equivalent to those described in the examples may be used in the practice of the invention in addition to the specific methods, devices, and materials used in the examples, in keeping with the knowledge of one skilled in the art and with the description of the invention.
Example 1
The method for identifying the parts in the embodiment comprises the following steps of:
1) cleaning the surface of the SiC part to be marked (shown in figure 1a) by using absolute ethyl alcohol, and drying;
2) uniformly mixing the nano composite ceramic coating and aminopropyltrimethoxysilane accounting for 0.5 wt% of the total mass of the nano composite ceramic coating, loading the mixture into a spray gun (the caliber of a nozzle is less than 1.0mm), spraying the nano composite ceramic coating on the surface of the part to be marked after the treatment of the step 1) at the spraying speed of 110ml/min, and curing at 30 ℃ for 10 hours to form a paint film with the thickness of 60 mu m (as shown in a figure 1 b);
3) introducing a target identification pattern into a laser coding machine, etching a paint film by using the laser coding machine according to the target identification pattern, gasifying the paint film, wherein the wavelength of laser is 1064nm, the peak power is 50kW, the repetition frequency is 25kHz, the spot diameter is less than 70 mu m, the moving step length is less than 2 mu m, the marking speed is less than 7000mm/s, and the paint film peeling mark is formed by the residual paint film and a paint film peeling area (as shown in figure 1 c).
Based on the total mass of the nano composite ceramic coating, the nano composite ceramic coating in the embodiment comprises the following raw material components in percentage by mass: 7 wt% of styrene-acrylic emulsion (solid content 45%), 20 wt% of aluminum oxide, 25 wt% of zirconium oxide, 20 wt% of rare earth oxide, 7 wt% of silica sol (solid content 30%), 0.15 wt% of ammonium polyacrylate salt, 0.2 wt% of hydroxyethyl cellulose and the balance of deionized water, wherein the sum of the components is 100%; wherein the rare earth oxide is a mixture of lanthanum oxide, cerium oxide and praseodymium oxide according to a mass ratio of 5:15: 3.
The nano composite ceramic coating in the embodiment is prepared by the method comprising the following steps of: according to the proportion, the styrene-acrylic emulsion, the alumina, the zirconia, the rare earth oxide and the inorganic binder are stirred and uniformly mixed for 2 hours by a variable frequency dispersion machine at the rotating speed of 5000 r/min; then adding a dispersant and a thickening agent, and stirring for 1.5h by adopting a variable frequency dispersion machine at the rotating speed of 8000 rpm to mix uniformly; finally, water is added, and the mixture is stirred for 2.5 hours and uniformly mixed by a variable frequency dispersion machine at the rotating speed of 600 revolutions per minute.
Example 2
The method for identifying the parts in the embodiment comprises the following steps of:
1) cleaning the surface of a metal part to be marked (figure 1a) by using absolute ethyl alcohol, and drying by using compressed air;
2) uniformly mixing the nano composite ceramic coating with amino methoxy silane accounting for 0.8 wt% of the total mass of the nano composite ceramic coating and amino propyl triethoxy silane accounting for 0.2 wt% of the total mass of the nano composite ceramic coating, loading the mixture into a spray gun (the caliber of a spray nozzle is less than 1.0mm), spraying the nano composite ceramic coating on the surface of the part to be identified after the treatment of the step 1) at a spraying speed of 120ml/min, and curing at 25 ℃ for 12 hours to form a paint film with the thickness of 70 mu m (shown in a picture 1 b);
3) introducing a target identification pattern into a laser coding machine, etching a paint film by using the laser coding machine according to the target identification pattern, gasifying the paint film, wherein the wavelength of laser is 1050nm, the peak power is 60kW, the repetition frequency is 30kHz, the spot diameter is less than 70 mu m, the moving step length is less than 2 mu m, the marking speed is less than 7000mm/s, and the paint film peeling mark is formed by the residual paint film and a paint film peeling area (figure 1 c).
Based on the total mass of the nano composite ceramic coating, the nano composite ceramic coating in the embodiment comprises the following raw material components in percentage by mass: 10 wt% of styrene-acrylic emulsion (solid content 40%), 40 wt% of alumina, 5 wt% of zirconia, 5 wt% of rare earth oxide, 10 wt% of aluminum sol (solid content 19.5%), 0.3 wt% of sodium polymethacrylate, 0.1 wt% of hydroxymethyl cellulose and the balance of deionized water, wherein the sum of the components is 100%. Wherein the rare earth oxide is a mixture of lanthanum oxide, cerium oxide and praseodymium oxide according to a mass ratio of 5:15: 3.
The nano composite ceramic coating in the embodiment is prepared by the method comprising the following steps of: according to the proportion, the styrene-acrylic emulsion, the alumina, the zirconia, the rare earth oxide and the inorganic binder are stirred and mixed uniformly for 1 hour by a variable frequency dispersion machine at the rotating speed of 9000 r/min; then adding a dispersing agent and a thickening agent, and stirring for 12 hours by adopting a variable frequency dispersion machine at the rotating speed of 11000 r/min to uniformly mix; finally, water is added, and a variable frequency dispersion machine is adopted to stir at the rotating speed of 500 r/min for 3h and mix evenly.
Example 3
The method for identifying the parts in the embodiment comprises the following steps of:
1) cleaning the surface of a metal part to be marked (figure 1a) by using absolute ethyl alcohol, and drying by using compressed air;
2) loading the nano composite ceramic coating into a spray gun (the caliber of the nozzle is less than 1.0mm), spraying the nano composite ceramic coating on the surface of the part to be identified, which is treated in the step 1), at a spraying speed of 140ml/min, and curing at 300 ℃ for 0.5h to form a paint film with the thickness of 90 mu m (figure 1 b);
3) introducing a target identification pattern into a laser coding machine 5, etching the paint film 4 by using the laser coding machine 5 according to the target identification pattern, gasifying the paint film 4, wherein the wavelength of laser is 1075nm, the peak power is 70kW, the repetition frequency is 10kHz, the spot diameter is less than 70 mu m, the moving step length is less than 2 mu m, the marking speed is less than 7000mm/s, and the paint film peeling mark is formed by the residual paint film and the area where the paint film peels off (figure 1 c).
Based on the total mass of the nano composite ceramic coating, the nano composite ceramic coating in the embodiment comprises the following raw material components in percentage by mass: 5% of styrene-acrylic emulsion, 4% of aluminum oxide, 30% of zirconium oxide, 35% of rare earth oxide, 5% of water glass (with the solid content of 40%), 0.1% of maleic acid-acrylic acid copolymer sodium salt and 0.3% of hydroxyethyl cellulose; the balance of deionized water, and the sum of the components is 100%; the rare earth oxide is a mixture of scandium oxide, lanthanum oxide, cerium oxide, praseodymium oxide and neodymium oxide according to a mass ratio of 4:5:5:5: 5.
The nano composite ceramic coating in the embodiment is prepared by the method comprising the following steps of: according to the proportion, the styrene-acrylic emulsion, the alumina, the zirconia, the rare earth oxide and the inorganic binder are stirred for 3 hours by a variable frequency dispersion machine at the rotating speed of 600 revolutions per minute and are uniformly mixed; then adding a dispersing agent and a thickening agent, and stirring for 2 hours at the rotating speed of 500 revolutions per minute by using a variable frequency dispersing machine to uniformly mix; finally, adding water, and stirring for 2 hours at the rotating speed of 700 r/min by using a variable frequency dispersion machine to uniformly mix.
The parts identified using the methods of examples 1-3 were each subjected to a thermal shock test:
1) setting a high-temperature furnace of a thermal cycle test furnace at 880 ℃ and a low-temperature furnace at room temperature;
2) when the temperature of the high-temperature furnace of the thermal cycle test furnace rises to 840 ℃, placing the marked part at a high-temperature furnace mouth, and starting timing at the same time for 3 minutes; controlling the temperature to be lower than 950 ℃ in the test process; after 3 minutes, taking out the part from the high-temperature furnace, immediately placing the part into a normal-temperature furnace mouth, and cooling to below 40 ℃ to perform the next cycle; testing the surface temperature of the part by a temperature measuring gun;
3) repeating the step 2) for ten cycles, then taking off the marked part, and testing the adhesion strength of the paint film and the identification capability of the mark, wherein the results are shown in table 1.
Adhesion strength: the test is carried out by a grid test instrument by adopting a grid test method, and the reference standard is GB/T9286-1998 scratch test of paint films of colored paint and varnish.
And (3) testing the recognition capability: and scanning and identifying the prepared mark by using a mark scanning gun.
TABLE 1 test results
In conclusion, the temperature range of the high temperature resistance of the paint film of the marked part obtained by the method is 840-950 ℃, the temperature range of the paint film melted by the laser is 2980-3500 ℃, and the paint film does not fall off in the subsequent processing (baking, contacting) and other processes; the paint film thickness can be controlled, and the paint film has enough adhesive strength; the paint film is self-dried or dried, and is convenient to use; in particular, the data of examples 1-2 and 3 show that the adhesion strength of the stoving-type paint film is higher than that of the self-drying paint film. The laser is peeled off, the contrast is clear, the machine is readable, and the method is suitable for marking metal parts and parts with deep colors, and traceability management is realized. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A method of marking a part, comprising the steps of:
1) spraying nano composite ceramic paint on the surface of the part to be marked, and curing to form a paint film;
2) and etching the paint film according to the target identification pattern.
2. The method of claim 1, wherein: the spraying speed is 100-150 ml/min;
and/or the thickness of the paint film is 50-100 mu m;
and/or the curing temperature is 250-300 ℃, and the curing time is 0.5-1 h;
and/or, the etching is laser etching;
and/or the temperature for etching the paint film is 2980-3500 ℃.
3. The method of claim 2, wherein: the wavelength of the laser is 1050-1075 nm, the peak power is 50-70 kW, the repetition frequency is 1-30 kHz, the diameter of a light spot is less than 70 mu m, the moving step length is less than 2 mu m, and the marking speed is less than 7000 mm/s; and/or: the laser etching is laser etching in a scribing mode or a dot matrix mode.
4. The method of claim 1, wherein: based on the total mass of the nano composite ceramic coating, the nano composite ceramic coating comprises the following raw material components in percentage by mass: 5-10 wt% of styrene-acrylic emulsion, 4-40 wt% of aluminum oxide, 5-30 wt% of zirconium oxide, 5-35 wt% of rare earth oxide, 5-10 wt% of inorganic binder, 0.1-0.3 wt% of acrylate dispersant, 0.1-0.3 wt% of thickening agent and the balance of water.
5. The method of claim 4, wherein: the rare earth oxide is selected from one or more of scandium, yttrium and lanthanum group element oxides;
and/or the inorganic binder is selected from one or the combination of more than two of silica sol, aluminum sol, water glass, silicate, phosphate and borate;
and/or the acrylate dispersant is selected from one or more of polyacrylic acid sodium salt, polyacrylic acid amine salt, polymethacrylic acid sodium salt, maleic acid-acrylic acid copolymer sodium salt and polyacrylamide;
and/or the thickening agent is one or two of hydroxymethyl cellulose and hydroxyethyl cellulose.
6. The method according to claim 4 or 5, characterized in that: the nano composite ceramic coating is prepared by the method comprising the following steps: the styrene-acrylic emulsion, the alumina, the zirconia, the rare earth oxide and the inorganic binder are uniformly mixed, then the acrylate dispersant and the thickening agent are added and uniformly mixed, and finally the water is added and uniformly mixed.
7. The method of claim 1, wherein: in the step 1), before spraying, adding a curing agent into the nano composite ceramic coating and uniformly mixing; the curing agent is aminosilane;
and/or the aminosilane is selected from one or more of aminopropyltrimethoxysilane, aminomethoxysilane and aminopropyltriethoxysilane;
and/or the addition amount of the curing agent is 0.5-1 wt% of the total mass of the nano composite ceramic coating;
and/or the curing temperature is 20-30 ℃, and the curing time is 2-24 h.
8. Use of the method according to any one of claims 1 to 7 for part marking.
9. Use according to claim 8, characterized in that the material of the part is metal or SiC.
10. The part with the mark is characterized in that the part is made of metal or SiC, the mark is formed on the surface of the part, and the mark is a nano composite ceramic paint film with an etched pattern.
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| CN105110766A (en) * | 2015-08-28 | 2015-12-02 | 兆山科技（北京）有限公司 | Ceramic paint and application thereof |
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| US6007929A (en) * | 1997-02-20 | 1999-12-28 | Infosight Corporation | Dual paint coat laser-marking labeling system, method and product |
| CN105110766A (en) * | 2015-08-28 | 2015-12-02 | 兆山科技（北京）有限公司 | Ceramic paint and application thereof |
| CN106042695A (en) * | 2016-06-28 | 2016-10-26 | 广州市铭钰标识科技有限公司 | Marking method for handle of zip-top can cover |
| CN107731316A (en) * | 2017-11-21 | 2018-02-23 | 清华大学天津高端装备研究院 | A kind of ceramic nano coating cladding nuclear fuels |
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