CN113102876A - Laser double-color processing technology for aluminum alloy wheel - Google Patents
Laser double-color processing technology for aluminum alloy wheel Download PDFInfo
- Publication number
- CN113102876A CN113102876A CN202110300320.9A CN202110300320A CN113102876A CN 113102876 A CN113102876 A CN 113102876A CN 202110300320 A CN202110300320 A CN 202110300320A CN 113102876 A CN113102876 A CN 113102876A
- Authority
- CN
- China
- Prior art keywords
- spraying
- colored paint
- powder
- paint
- wheel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000012545 processing Methods 0.000 title claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 250
- 239000003973 paint Substances 0.000 claims abstract description 186
- 239000000843 powder Substances 0.000 claims abstract description 131
- 238000000034 method Methods 0.000 claims abstract description 122
- 239000007921 spray Substances 0.000 claims abstract description 62
- 238000004321 preservation Methods 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000005406 washing Methods 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000005238 degreasing Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000000889 atomisation Methods 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000005554 pickling Methods 0.000 claims 1
- 238000010147 laser engraving Methods 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 3
- 239000003086 colorant Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
- B05D5/065—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones
- B05D5/066—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones achieved by multilayers
-
- 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
- B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a laser double-color processing technology of an aluminum alloy wheel, which comprises the following steps: material wheel → pretreatment → bottom powder spraying → first color paint spraying → second color paint spraying → offline → laser engraving → pretreatment → transparent powder spraying → offline finished product, wherein the pretreatment process comprises the steps of hot water washing, pre-degreasing, water washing, acid washing, water washing, pure water washing, zirconizing, pure water washing, sealing, pure water washing, drying and the like. Wherein the temperature of the pretreatment oven is 140-160 ℃, and the heat preservation time is 30-60 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 30KV-60KV, and the powder output is 1.5m3/h‑5.0m3The thickness of the front face base powder is 70-150 mu m, the temperature in the base powder oven is controlled at 200 +/-10 ℃, and the heat preservation time is 15-25 minutes. Thereby, the inventionThe laser double-color processing technology for the aluminum alloy wheel shortens the processing time of turning products, can realize the diversification of colors and patterns, and greatly improves the added value of the products.
Description
Technical Field
The invention relates to the field of aluminum alloy wheels, in particular to a laser two-color processing technology of an aluminum alloy wheel.
Background
In recent years, with rapid development of the automobile industry, wheel technology is mature day by day, and a mainstream processing technology is mature day by day while a surface treatment technology is increased continuously, wherein a surface turning technology becomes a common processing technology of a bicolor wheel, is positioned on a high-end product and a high vehicle model, is optimized continuously, and the wheel turned at present is gradually applied to various vehicle models; the design of the corresponding revolution surface is required to be made on the modeling due to the limitation of the process characteristics; therefore, the development of a high-efficiency high-yield double-color process with various colors and shapes has important significance for realizing the innovative change of the double-color wheel.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a laser two-color processing technology for an aluminum alloy wheel, which shortens the processing time of a product by using turning, can realize the diversification of colors and patterns and greatly improves the added value of the product.
In order to achieve the purpose, the invention provides a laser two-color processing technology of an aluminum alloy wheel, which comprises the following steps: material wheel → pretreatment → bottom powder spraying → first color paint spraying → second color paint spraying → offline → laser engraving → pretreatment → transparent powder spraying → offline finished product, wherein the pretreatment process comprises the steps of hot water washing, pre-degreasing, water washing, acid washing, water washing, pure water washing, zirconizing, pure water washing, sealing, pure water washing, drying and the like. Wherein the temperature of the pretreatment oven is 140-160 ℃, and the heat preservation time is 30-60 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 30KV-60KV, and the powder output is 1.5m3/h-5.0m3The thickness of the front face base powder is 70-150 mu m, the temperature in the base powder oven is controlled to be 200 +/-10 ℃, and the heat preservation time is 15-25 minutes; the first process of spraying the colored paint adopts airSpraying by an air gun, wherein the distance between the air gun and the surface of the wheel is 200-300 mm, the atomization pressure of the air gun is 1.5-3.0 bar, the fan-shaped pressure is 1.5-3.0 bar, the paint spraying amount is 30-60 cc/min, the surface temperature of a workpiece is 20-40 ℃, and the paint spraying thickness is 15-30 mu m; spraying a colored paint by using an air gun in the second working procedure of spraying the colored paint, wherein the colored paint in the second working procedure of spraying the colored paint is any colored paint except the colored paint used in the first working procedure of spraying the colored paint, the distance between the air gun and the surface of the wheel is 200mm-300mm, the atomization pressure of the air gun is 1.5bar-3.0bar, the fan-shaped pressure is 1.5bar-3.0bar, the paint spraying amount is 30cc/min-60cc/min, the surface temperature of the workpiece is 20-40 ℃, the spraying thickness of the colored paint is 15 mu m-30 mu m, the surface temperature of the workpiece in an oven in the second working procedure of spraying the colored paint is controlled to be 160 +/-10 ℃, and the heat preservation time is 10-20 minutes; and the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 30KV-60KV, and the powder output is 1.5m3/h-5.0m3The thickness of the transparent powder on the front surface is 60-120 mu m, the surface temperature of the workpiece in the drying oven in the process of spraying the transparent powder is controlled at 190-210 ℃, and the heat preservation time is 20-30 minutes.
In one embodiment of the invention, the temperature of the pretreatment water oven is 140-160 ℃, and the heat preservation time is 30-60 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 40KV-60KV, and the powder output is 2.0m3/h-4.5m3The thickness of the front surface base powder is 80-140 mu m, the surface temperature of a workpiece in a base powder oven is controlled to be 195-205 ℃, and the heat preservation time is 10-20 minutes; spraying colored paint by adopting an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 220-280 mm, the atomization pressure of the air gun is 2.0-3.0 bar, the fan-shaped pressure is 2.0-3.0 bar, the paint spraying amount is 35-60 cc/min, the surface temperature of a workpiece is 20-35 ℃, and the spraying thickness of the colored paint is 15-30 mu m; the second process of spraying the colored paint adopts an air gun for spraying, the color of the colored paint in the second process of spraying the colored paint is different from that of the colored paint in the first process of spraying the colored paint, the distance between the air gun and the surface of the wheel is 220mm-280mm, the atomization pressure of the air gun is 2.0bar-3.0bar, the fan-shaped pressure is 2.0bar-3.0bar, the paint spraying amount is 35cc/min-60cc/min, the surface temperature of the workpiece is 20 ℃ to 35 ℃, and the colored paint is sprayedThe coating thickness is 15-30 μm, the surface temperature of the workpiece in the baking oven of the second process of spraying the colored paint is controlled to be 165-170 ℃, and the heat preservation time is 10-20 minutes; the process of spraying transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 40KV-60KV, and the powder output is 2.0m3/h-3.0m3The thickness of the transparent powder on the front surface is 80-140 mu m, the surface temperature of the workpiece in the drying oven in the process of spraying the transparent powder is controlled to be 195-205 ℃, and the heat preservation time is 10-20 minutes.
In one embodiment of the invention, the temperature of the pretreatment water oven is 155 ℃, and the heat preservation time is 40 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 260mm, the voltage is 45KV, and the powder output is 3.5m3The thickness of the front face base powder is 95 mm; controlling the surface temperature of a workpiece in the base powder oven to be 195 ℃ and keeping the temperature for 19 minutes; spraying the colored paint by adopting an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 260mm, the atomization pressure of the air gun is 2.7bar, the fan-shaped pressure is 2.8bar, the paint spraying amount is 45cc/min, the surface temperature of a workpiece is 25 ℃, and the spraying thickness of the colored paint is 15 mu m; spraying a colored paint by using an air gun in the second step of spraying the colored paint, wherein the color of the colored paint in the second step of spraying the colored paint is different from that of the colored paint in the first step of spraying the colored paint, the distance between the air gun and the surface of the wheel is 260mm, the atomization pressure of the air gun is 2.8bar, the fan-shaped pressure is 2.9bar, the paint spraying amount is 45cc/min, the surface temperature of the workpiece is 25 ℃, the spraying thickness of the colored paint is 16 mu m, the surface temperature of the workpiece in an oven in the second step of spraying the colored paint is controlled at 155 ℃, and the heat preservation time is 16 minutes; the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 260mm, the voltage is 45KV, and the powder output is 3.5m3And h, the thickness of the transparent powder on the front surface is 97 mu m, the surface temperature of the workpiece in the oven in the step of spraying the transparent powder is controlled at 197 ℃, and the heat preservation time is 17 minutes.
In one embodiment of the invention, the temperature of the pretreatment water oven is 160 ℃, and the heat preservation time is 35 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 300mm, the voltage is 55KV, and the powder output is 2.4m3H, the thickness of the front surface base powder is 81 mu m, and the surface temperature of the workpiece in the base powder ovenControlling the temperature at 194 ℃ and keeping the temperature for 12 minutes; spraying the colored paint by adopting an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 300mm, the atomization pressure of the air gun is 2.2bar, the fan-shaped pressure is 2.3bar, the paint spraying amount is 36cc/min, the surface temperature of the workpiece is 50 ℃, and the spraying thickness of the colored paint is l6 mu m; spraying the colored paint by using an air gun in the second process of spraying the colored paint, wherein the color of the colored paint in the second process of spraying the colored paint is different from that of the colored paint in the first process of spraying the colored paint, the distance between the air gun and the surface of the wheel is 300mm, the atomization pressure of the air gun is 2.lbar, the sector pressure is 2.2bar, the paint spraying amount is 40cc/min, the surface temperature of the workpiece is 50 ℃, the spraying thickness of the colored paint is l5 mu m, the surface temperature of the workpiece in an oven in the second process of spraying the colored paint is controlled at 165 ℃, and the heat preservation time is 10 minutes; the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 300mm, the voltage is 54KV, and the powder output is 2.5m3And h, the thickness of the transparent powder on the front surface is 84 microns, the surface temperature of a workpiece in an oven in the transparent powder spraying process is controlled to be 193 ℃, and the heat preservation time is 10 minutes. In one embodiment of the invention, the temperature of the pretreatment water oven is 160 ℃, and the heat preservation time is 40 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm, the voltage is 55KV, and the powder output is 3.8m3H, controlling the thickness of the front surface base powder to be 124 mu m, controlling the surface temperature of a workpiece in a base powder oven to be 191 ℃, and keeping the temperature for 16 minutes; spraying the colored paint by adopting an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 200mm, the atomization pressure of the air gun is 3.8bar, the fan-shaped pressure is 3.9bar, the paint spraying amount is 65cc/min, the surface temperature of a workpiece is 25 ℃, and the spraying thickness of the colored paint is 26 mu m; spraying a colored paint by using an air gun in the second working procedure of spraying the colored paint, wherein the color of the colored paint in the second working procedure of spraying the colored paint is different from that of the colored paint in the first working procedure of spraying the colored paint, the distance between the air gun and the surface of the wheel is 200mm, the atomization pressure of the air gun is 4.0bar, the fan-shaped pressure is 3.8bar, the paint spraying amount is 67cc/min, the surface temperature of the workpiece is 25 ℃, the spraying thickness of the colored paint is 25 mu m, and the surface temperature of the workpiece in the oven in the second working procedure of spraying the colored paint is controlled; the heat preservation time is 13 minutes; the process of spraying transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm, the voltage is 58KV, and the powder output is 3.9m3H, front face perspectiveThe thickness of the sodium sulfate is 117 mu m, the surface temperature of a workpiece in an oven in the process of spraying the transparent powder is controlled at 192 ℃, and the heat preservation time is 22 minutes.
Compared with the prior art, according to the laser double-color processing technology for the aluminum alloy wheel, the coating on the surface of the wheel is subjected to laser engraving, so that various pattern styles can be engraved, the modeling characteristics of the wheel are enriched, a double-color effect is achieved, off-line repair is not needed, the labor cost is saved, and the spraying yield of the double-color wheel is improved.
Drawings
Fig. 1 is a schematic flow chart of a laser two-color processing process of an aluminum alloy wheel according to an embodiment of the invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is a schematic flow chart of a laser two-color processing process of an aluminum alloy wheel according to an embodiment of the invention. As shown in fig. 1, a laser two-color processing process for an aluminum alloy wheel according to a preferred embodiment of the present invention comprises the following steps: material wheel → pretreatment → bottom powder spraying → first color paint spraying → second color paint spraying → offline → laser engraving → pretreatment → transparent powder spraying → offline finished product, wherein the pretreatment process comprises the steps of hot water washing, pre-degreasing, water washing, acid washing, water washing, pure water washing, zirconizing, pure water washing, sealing, pure water washing, drying and the like. Wherein the temperature of the pretreatment oven is 140-160 ℃, and the heat preservation time is 30-60 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 30KV-60KV, and the powder output is 1.5m3/h-5.0m3The thickness of the front face base powder is 70-150 mu m, the temperature in the base powder oven is controlled to be 200 +/-10 ℃, and the heat preservation time is15-25 minutes; spraying colored paint by using an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 200-300 mm, the atomization pressure of the air gun is 1.5-3.0 bar, the fan-shaped pressure is 1.5-3.0 bar, the paint spraying amount is 30-60 cc/min, the surface temperature of a workpiece is 20-40 ℃, and the spraying thickness of the colored paint is 15-30 mu m; spraying a colored paint by using an air gun in the second working procedure of spraying the colored paint, wherein the colored paint in the second working procedure of spraying the colored paint is any colored paint except the colored paint used in the first working procedure of spraying the colored paint, the distance between the air gun and the surface of the wheel is 200mm-300mm, the atomization pressure of the air gun is 1.5bar-3.0bar, the fan-shaped pressure is 1.5bar-3.0bar, the paint spraying amount is 30cc/min-60cc/min, the surface temperature of the workpiece is 20-40 ℃, the spraying thickness of the colored paint is 15 mu m-30 mu m, the surface temperature of the workpiece in an oven in the second working procedure of spraying the colored paint is controlled to be 160 +/-10 ℃, and the heat preservation time is 10-20 minutes; and the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 30KV-60KV, and the powder output is 1.5m3/h-5.0m3The thickness of the transparent powder on the front surface is 60-120 mu m, the surface temperature of the workpiece in the drying oven in the process of spraying the transparent powder is controlled at 190-210 ℃, and the heat preservation time is 20-30 minutes.
In one embodiment of the invention, the temperature of the pretreatment water oven is 140-160 ℃, and the heat preservation time is 30-60 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 40KV-60KV, and the powder output is 2.0m3/h-4.5m3The thickness of the front surface base powder is 80-140 mu m, the surface temperature of a workpiece in a base powder oven is controlled to be 195-205 ℃, and the heat preservation time is 10-20 minutes; spraying colored paint by adopting an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 220-280 mm, the atomization pressure of the air gun is 2.0-3.0 bar, the fan-shaped pressure is 2.0-3.0 bar, the paint spraying amount is 35-60 cc/min, the surface temperature of a workpiece is 20-35 ℃, and the spraying thickness of the colored paint is 15-30 mu m; the second working procedure of spraying the colored paint adopts an air gun for spraying, the color of the colored paint in the second working procedure of spraying the colored paint is different from that of the colored paint in the first working procedure of spraying the colored paint, the distance between the air gun and the surface of the wheel is 220mm-280mm, the atomization pressure of the air gun is 2.0bar-3.0bar, the fan-shaped pressure is 2.0bar-3.0bar, the paint spraying amount is 35cc/min-60cc/min,the surface temperature of the workpiece is 20-35 ℃, the spraying thickness of the colored paint is 15-30 μm, the surface temperature of the workpiece in the oven of the second step of spraying the colored paint is controlled to be 165-170 ℃, and the heat preservation time is 10-20 minutes; the process of spraying transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 40KV-60KV, and the powder output is 2.0m3/h-3.0m3The thickness of the transparent powder on the front surface is 80-140 mu m, the surface temperature of the workpiece in the drying oven in the process of spraying the transparent powder is controlled to be 195-205 ℃, and the heat preservation time is 10-20 minutes.
In one embodiment of the invention, the temperature of the pretreatment water oven is 155 ℃, and the heat preservation time is 40 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 260mm, the voltage is 45KV, and the powder output is 3.5m3The thickness of the front face base powder is 95 mm; controlling the surface temperature of a workpiece in the base powder oven to be 195 ℃ and keeping the temperature for 19 minutes; spraying the colored paint by adopting an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 260mm, the atomization pressure of the air gun is 2.7bar, the fan-shaped pressure is 2.8bar, the paint spraying amount is 45cc/min, the surface temperature of a workpiece is 25 ℃, and the spraying thickness of the colored paint is 15 mu m; spraying a colored paint by using an air gun in the second step of spraying the colored paint, wherein the color of the colored paint in the second step of spraying the colored paint is different from that of the colored paint in the first step of spraying the colored paint, the distance between the air gun and the surface of the wheel is 260mm, the atomization pressure of the air gun is 2.8bar, the fan-shaped pressure is 2.9bar, the paint spraying amount is 45cc/min, the surface temperature of the workpiece is 25 ℃, the spraying thickness of the colored paint is 16 mu m, the surface temperature of the workpiece in an oven in the second step of spraying the colored paint is controlled at 155 ℃, and the heat preservation time is 16 minutes; the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 260mm, the voltage is 45KV, and the powder output is 3.5m3And h, the thickness of the transparent powder on the front surface is 97 mu m, the surface temperature of the workpiece in the oven in the step of spraying the transparent powder is controlled at 197 ℃, and the heat preservation time is 17 minutes.
In one embodiment of the invention, the temperature of the pretreatment water oven is 160 ℃, and the heat preservation time is 35 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 300mm, the voltage is 55KV, and the powder output is 2.4m3H, front face powder thickness of81 mu m, controlling the surface temperature of a workpiece in the bottom powder oven at 194 ℃, and keeping the temperature for 12 minutes; spraying the colored paint by adopting an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 300mm, the atomization pressure of the air gun is 2.2bar, the fan-shaped pressure is 2.3bar, the paint spraying amount is 36cc/min, the surface temperature of the workpiece is 50 ℃, and the spraying thickness of the colored paint is l6 mu m; spraying the colored paint by using an air gun in the second process of spraying the colored paint, wherein the color of the colored paint in the second process of spraying the colored paint is different from that of the colored paint in the first process of spraying the colored paint, the distance between the air gun and the surface of the wheel is 300mm, the atomization pressure of the air gun is 2.lbar, the sector pressure is 2.2bar, the paint spraying amount is 40cc/min, the surface temperature of the workpiece is 50 ℃, the spraying thickness of the colored paint is l5 mu m, the surface temperature of the workpiece in an oven in the second process of spraying the colored paint is controlled at 165 ℃, and the heat preservation time is 10 minutes; the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 300mm, the voltage is 54KV, and the powder output is 2.5m3And h, the thickness of the transparent powder on the front surface is 84 microns, the surface temperature of a workpiece in an oven in the transparent powder spraying process is controlled to be 193 ℃, and the heat preservation time is 10 minutes. In one embodiment of the invention, the temperature of the pretreatment water oven is 160 ℃, and the heat preservation time is 40 minutes; the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm, the voltage is 55KV, and the powder output is 3.8m3H, controlling the thickness of the front surface base powder to be 124 mu m, controlling the surface temperature of a workpiece in a base powder oven to be 191 ℃, and keeping the temperature for 16 minutes; spraying the colored paint by adopting an air gun in the first working procedure, wherein the distance between the air gun and the surface of the wheel is 200mm, the atomization pressure of the air gun is 3.8bar, the fan-shaped pressure is 3.9bar, the paint spraying amount is 65cc/min, the surface temperature of a workpiece is 25 ℃, and the spraying thickness of the colored paint is 26 mu m; spraying a colored paint by using an air gun in the second working procedure of spraying the colored paint, wherein the color of the colored paint in the second working procedure of spraying the colored paint is different from that of the colored paint in the first working procedure of spraying the colored paint, the distance between the air gun and the surface of the wheel is 200mm, the atomization pressure of the air gun is 4.0bar, the fan-shaped pressure is 3.8bar, the paint spraying amount is 67cc/min, the surface temperature of the workpiece is 25 ℃, the spraying thickness of the colored paint is 25 mu m, and the surface temperature of the workpiece in the oven in the second working procedure of spraying the colored paint is controlled; the heat preservation time is 13 minutes; the transparent powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm, and the voltage is 58KV, powder output of 3.9m3And h, the thickness of the transparent powder on the front surface is 117 mu m, the surface temperature of the workpiece in the oven in the transparent powder spraying process is controlled at 192 ℃, and the heat preservation time is 22 minutes.
In a word, the laser double-color processing technology for the aluminum alloy wheel carries out laser engraving on the surface coating of the wheel, can realize engraving of various pattern styles, enriches the modeling characteristics of the wheel, presents a double-color effect, does not need off-line repair, saves the labor cost and improves the spraying yield of the double-color wheel.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (5)
1. A laser double-color processing technology for an aluminum alloy wheel comprises the following processes: material wheel → preliminary treatment → spraying base powder → spraying color paint one → spraying color paint two → rolls off the production line → laser sculpture → preliminary treatment → spraying transparent powder → finished product rolls off the production line, the preliminary treatment process includes hot water washing, pre-degreasing, degrease, washing, pickling, washing, pure water washing, zirconization, pure water washing, seals, pure water washing, processes such as stoving, its characterized in that:
the temperature of the pretreatment oven is 140-160 ℃, and the heat preservation time is 30-60 minutes;
the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 30KV-60KV, and the powder output is 1.5m3/h-5.0m3The thickness of the front face base powder is 70-150 mu m, the temperature in the base powder oven is controlled to be 200 +/-10 ℃, and the heat preservation time is 15-25 minutes;
the first process of spraying the colored paint adopts an air gun for spraying, the distance between the air gun and the surface of the wheel is 200mm-300mm, the atomization pressure of the air gun is 1.5bar-3.0bar, the fan-shaped pressure is 1.5bar-3.0bar, the paint spraying amount is 30cc/min-60cc/min, the surface temperature of the workpiece is 20 ℃ to 40 ℃, and the spraying thickness of the colored paint is 15 mu m-30 mu m;
the second process of spraying the colored paint adopts an air gun for spraying, the colored paint in the second process of spraying the colored paint is any colored paint except the colored paint used in the first process of spraying the colored paint, the distance between the air gun and the surface of the wheel is 200mm-300mm, the atomization pressure of the air gun is 1.5bar-3.0bar, the fan-shaped pressure is 1.5bar-3.0bar, the paint spraying amount is 30cc/min-60cc/min, the surface temperature of the workpiece is 20-40 ℃, the spraying thickness of the colored paint is 15 mu m-30 mu m, the surface temperature of the workpiece in an oven in the second process of spraying the colored paint is controlled at 160 +/-10 ℃, and the heat preservation time is 10-20 minutes; and
the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 30KV-60KV, and the powder output is 1.5m3/h-5.0m3The thickness of the transparent powder on the front surface is 60-120 mu m, the surface temperature of the workpiece in the drying oven in the process of spraying the transparent powder is controlled at 190-210 ℃, and the heat preservation time is 20-30 minutes.
2. The laser bicolor processing process of the aluminum alloy wheel as claimed in claim 1, wherein the laser bicolor processing process comprises the following steps:
the temperature of the pretreatment water oven is 140-160 ℃, and the heat preservation time is 30-60 minutes;
the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 40KV-60KV, and the powder output is 2.0m3/h-4.5m3The thickness of the front surface base powder is 80-140 mu m, the surface temperature of a workpiece in a base powder oven is controlled to be 195-205 ℃, and the heat preservation time is 10-20 minutes;
the first process of spraying the colored paint adopts an air gun for spraying, the distance between the air gun and the surface of the wheel is 220mm-280mm, the atomization pressure of the air gun is 2.0bar-3.0bar, the fan-shaped pressure is 2.0bar-3.0bar, the paint spraying amount is 35cc/min-60cc/min, the surface temperature of the workpiece is 20 ℃ -35 ℃, and the spraying thickness of the colored paint is 15μm-30μm;
the color paint spraying step is characterized in that an air gun is adopted for spraying the color paint in the color paint spraying step two, the color of the color paint in the color paint spraying step two is different from that of the color paint used in the color paint spraying step one, the distance between the air gun and the surface of the wheel is 220-280 mm, the atomization pressure of the air gun is 2.0-3.0 bar, the sector pressure is 2.0-3.0 bar, the paint spraying amount is 35-60 cc/min, the surface temperature of the workpiece is 20-35 ℃, the color paint spraying thickness is 15-30 mu m, the surface temperature of the workpiece in an oven in the color paint spraying step two is controlled to be 165-170 ℃, and the heat preservation time is 10-20 minutes;
the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm-300mm, the voltage is 40KV-60KV, and the powder output is 2.0m3/h-3.0m3The thickness of the transparent powder on the front surface is 80-140 mu m, the surface temperature of the workpiece in the drying oven in the process of spraying the transparent powder is controlled to be 195-205 ℃, and the heat preservation time is 10-20 minutes.
3. The laser bicolor processing process of the aluminum alloy wheel as claimed in claim 1, wherein the laser bicolor processing process comprises the following steps:
the temperature of the pretreatment water oven is 155 ℃, and the heat preservation time is 40 minutes;
the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 260mm, the voltage is 45KV, and the powder output is 3.5m3The thickness of the front face base powder is 95 mm; controlling the surface temperature of a workpiece in the base powder oven to be 195 ℃ and keeping the temperature for 19 minutes;
the first step of spraying the colored paint is spraying by adopting an air gun, the distance between the air gun and the surface of the wheel is 260mm, the atomization pressure of the air gun is 2.7bar, the fan-shaped pressure is 2.8bar, the paint spraying amount is 45cc/min, the surface temperature of the workpiece is 25 ℃, and the spraying thickness of the colored paint is 15 mu m;
the second process of spraying the colored paint adopts an air gun for spraying, the color of the colored paint in the second process of spraying the colored paint is different from that of the colored paint used in the first process of spraying the colored paint, the distance between the air gun and the surface of the wheel is 260mm, the atomization pressure of the air gun is 2.8bar, the sector pressure is 2.9bar, the paint spraying amount is 45cc/min, the surface temperature of the workpiece is 25 ℃, the spraying thickness of the colored paint is 16 mu m, the surface temperature of the workpiece in the oven in the second process of spraying the colored paint is controlled at 155 ℃, and the heat preservation time is 16 minutes;
the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 260mm, the voltage is 45KV, and the powder output is 3.5m3And h, the thickness of the transparent powder on the front surface is 97 mu m, the surface temperature of the workpiece in the drying oven in the transparent powder spraying process is controlled to be 197 ℃, and the heat preservation time is 17 minutes.
4. The laser bicolor processing process of the aluminum alloy wheel as claimed in claim 1, wherein the laser bicolor processing process comprises the following steps:
the temperature of the pretreatment water oven is 160 ℃, and the heat preservation time is 35 minutes;
the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 300mm, the voltage is 55KV, and the powder output is 2.4m3H, controlling the thickness of the front surface base powder to be 81 microns, controlling the surface temperature of a workpiece in a base powder oven to be 194 ℃, and keeping the temperature for 12 minutes;
the first step of spraying the colored paint is spraying by adopting an air gun, the distance between the air gun and the surface of the wheel is 300mm, the atomization pressure of the air gun is 2.2bar, the fan-shaped pressure is 2.3bar, the paint spraying amount is 36cc/min, the surface temperature of the workpiece is 50 ℃, and the spraying thickness of the colored paint is l6 mu m;
the second process of spraying the colored paint adopts an air gun for spraying, the color of the colored paint in the second process of spraying the colored paint is different from that of the colored paint used in the first process of spraying the colored paint, the distance between the air gun and the surface of the wheel is 300mm, the atomization pressure of the air gun is 2.lbar, the sector pressure is 2.2bar, the paint spraying amount is 40cc/min, the surface temperature of the workpiece is 50 ℃, the spraying thickness of the colored paint is l5 mu m, the surface temperature of the workpiece in the oven in the second process of spraying the colored paint is controlled at 165 ℃, and the heat preservation time is 10 minutes;
the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 300mm, the voltage is 54KV, and the powder output is 2.5m3And h, the thickness of the transparent powder on the front surface is 84 microns, the surface temperature of the workpiece in the drying oven in the transparent powder spraying process is controlled at 193 ℃, and the heat preservation time is 10 minutes.
5. The laser bicolor processing process of the aluminum alloy wheel as claimed in claim 1, wherein the laser bicolor processing process comprises the following steps:
the temperature of the pretreatment water oven is 160 ℃, and the heat preservation time is 40 minutes;
the bottom powder spraying process adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm, the voltage is 55KV, and the powder output is 3.8m3H, controlling the thickness of the front surface base powder to be 124 mu m, controlling the surface temperature of a workpiece in a base powder oven to be 191 ℃, and keeping the temperature for 16 minutes;
the first step of spraying the colored paint is spraying by adopting an air gun, the distance between the air gun and the surface of the wheel is 200mm, the atomization pressure of the air gun is 3.8bar, the fan-shaped pressure is 3.9bar, the paint spraying amount is 65cc/min, the surface temperature of the workpiece is 25 ℃, and the spraying thickness of the colored paint is 26 mu m;
the second process of spraying the colored paint adopts an air gun for spraying, the color of the colored paint in the second process of spraying the colored paint is different from that of the colored paint used in the first process of spraying the colored paint, the distance between the air gun and the surface of the wheel is 200mm, the atomization pressure of the air gun is 4.0bar, the fan-shaped pressure is 3.8bar, the paint spraying amount is 67cc/min, the surface temperature of the workpiece is 25 ℃, the spraying thickness of the colored paint is 25 mu m, and the surface temperature of the workpiece in the oven in the second process of spraying the colored paint is controlled at 168 ℃; the heat preservation time is 13 minutes;
the process of spraying the transparent powder adopts an electrostatic spray gun for spraying, the distance between the electrostatic spray gun and the surface of the wheel is 200mm, the voltage is 58KV, and the powder output is 3.9m3And h, the thickness of the transparent powder on the front surface is 117 mu m, the surface temperature of the workpiece in the drying oven in the transparent powder spraying procedure is controlled at 192 ℃, and the heat preservation time is 22 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110300320.9A CN113102876A (en) | 2021-03-22 | 2021-03-22 | Laser double-color processing technology for aluminum alloy wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110300320.9A CN113102876A (en) | 2021-03-22 | 2021-03-22 | Laser double-color processing technology for aluminum alloy wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113102876A true CN113102876A (en) | 2021-07-13 |
Family
ID=76712154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110300320.9A Pending CN113102876A (en) | 2021-03-22 | 2021-03-22 | Laser double-color processing technology for aluminum alloy wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113102876A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733551A (en) * | 2016-12-05 | 2017-05-31 | 中信戴卡股份有限公司 | Improved double-colored smart car wheel coating process |
| CN108838053A (en) * | 2018-07-18 | 2018-11-20 | 天津立中集团股份有限公司 | A method of by automatically stripping paint production chromatography wheel |
| CN110252622A (en) * | 2019-06-25 | 2019-09-20 | 中信戴卡股份有限公司 | A kind of spraying method of aluminium alloy covered, aluminium alloy wheel hub and aluminium alloy wheel hub |
| CN209465247U (en) * | 2018-12-29 | 2019-10-08 | 吉林万丰奥威汽轮有限公司 | A kind of clear powder device for aluminium alloy wheel hub spraying process |
| EP3763475A1 (en) * | 2019-07-11 | 2021-01-13 | Jian Sin Industrial Co., Ltd. | Method for laser carving an area of paint from an outer surface of a wheel |
-
2021
- 2021-03-22 CN CN202110300320.9A patent/CN113102876A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733551A (en) * | 2016-12-05 | 2017-05-31 | 中信戴卡股份有限公司 | Improved double-colored smart car wheel coating process |
| CN108838053A (en) * | 2018-07-18 | 2018-11-20 | 天津立中集团股份有限公司 | A method of by automatically stripping paint production chromatography wheel |
| CN209465247U (en) * | 2018-12-29 | 2019-10-08 | 吉林万丰奥威汽轮有限公司 | A kind of clear powder device for aluminium alloy wheel hub spraying process |
| CN110252622A (en) * | 2019-06-25 | 2019-09-20 | 中信戴卡股份有限公司 | A kind of spraying method of aluminium alloy covered, aluminium alloy wheel hub and aluminium alloy wheel hub |
| US20200406295A1 (en) * | 2019-06-25 | 2020-12-31 | Citic Dicastal Co., Ltd. | Aluminum alloy coating, aluminum alloy wheel hub and spraying method of aluminum alloy wheel hub |
| EP3763475A1 (en) * | 2019-07-11 | 2021-01-13 | Jian Sin Industrial Co., Ltd. | Method for laser carving an area of paint from an outer surface of a wheel |
| US20210008667A1 (en) * | 2019-07-11 | 2021-01-14 | Jian Sin Industrial Co., Ltd. | Method for laser carving of paint on an outer surface of a vehicle wheel |
Non-Patent Citations (1)
| Title |
|---|
| "涂漆工艺", 《涂料文摘》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101733885B (en) | Manufacturing method of vinyl toy | |
| CN105289957B (en) | Three color aluminium alloy wheel hubs of one kind and its production technology | |
| CN106622918A (en) | Improved double-color aluminum alloy wheel coating process | |
| CN106622907A (en) | Processing method and special tool for multicolor aluminum alloy hub | |
| CN110681551A (en) | Color register coating process method for automobile multi-color automobile body | |
| CN108068533A (en) | A kind of curved metal surface detail manufacture craft | |
| CN101311324B (en) | Processing technology for divisionally plating and coating hub and special protective tool | |
| CN107138378A (en) | A kind of colored transparent paint wheel hub coating process | |
| CN113102876A (en) | Laser double-color processing technology for aluminum alloy wheel | |
| CN106733567B (en) | Production process of colorful aluminum alloy hub | |
| CN110154606A (en) | Form the method for pattern and the workpiece with predetermined pattern | |
| CN113232448A (en) | Crystal ball head manufacturing method and crystal ball head | |
| CN111112029B (en) | Multi-color workpiece and method for producing the same | |
| CN205361894U (en) | Three -colour aluminum alloy wheel hub | |
| CN101502827A (en) | Paint spraying method for car lamp polycarbonate matched mirror | |
| CN204472710U (en) | A kind of coating structure of automobile metal exterior trimming parts | |
| CN113584556A (en) | Automobile hub double-color electrophoresis coating process | |
| EP3456421B1 (en) | Method for color-register spraying of hub | |
| KR102163809B1 (en) | Surface treatment method for injection mould and injection mould thereof | |
| CN111036525A (en) | Spraying process of gradient-color glass bottle | |
| JP6417131B2 (en) | Vehicle wheel decoration method | |
| CN109576748A (en) | Wet process electroplated metal layer lacquer spraying technique | |
| CN104477106A (en) | Production method of highlight D post decorative sheet | |
| CN117600039A (en) | Surface coating method capable of realizing partial colored light transmission for automobile interior and exterior trim | |
| CN113083639A (en) | Painting process for bright wheel window of painting vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210713 |
|
| RJ01 | Rejection of invention patent application after publication |