CN113910821A - Preparation method of super-weather-resistant wood grain aluminum profile - Google Patents
Preparation method of super-weather-resistant wood grain aluminum profile Download PDFInfo
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- CN113910821A CN113910821A CN202111120676.0A CN202111120676A CN113910821A CN 113910821 A CN113910821 A CN 113910821A CN 202111120676 A CN202111120676 A CN 202111120676A CN 113910821 A CN113910821 A CN 113910821A
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- Prior art keywords
- aluminum profile
- transfer printing
- wood grain
- film
- weather
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/17—Dry transfer
- B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- 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
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F9/00—Designs imitating natural patterns
- B44F9/02—Designs imitating natural patterns wood grain effects
-
- 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
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
Abstract
The invention discloses a preparation method of an ultra-weather-resistant wood grain aluminum profile, which relates to the technical field of aluminum production and manufacturing and comprises the following specific steps; firstly, casting; secondly, machine pressing and shaping; thirdly, oxidation treatment; fourthly, coating the transfer printing film; fifthly, laminating the transfer printing film; sixthly, thermal transfer printing; seventhly, removing the transfer printing film; eighthly, surface treatment; and ninthly, packaging and warehousing. According to the invention, the aluminum profile is subjected to oxidation treatment and surface treatment before thermal transfer printing, so that on one hand, the anti-oxidation effect of the aluminum profile in long-term use can be ensured, on the other hand, the wood grain transfer printing film can be prevented from influencing the aluminum profile in the thermal transfer printing process, weather-resistant coating is adopted for the surface treatment of the aluminum profile, the aluminum profile and the transferred wood grain can be protected to the greatest extent, and the service life of the aluminum profile in outdoor use is prolonged.
Description
Technical Field
The invention relates to the technical field of aluminum production and manufacturing, in particular to a preparation method of an ultra-weather-resistant wood grain aluminum profile.
Background
The aluminum alloy wood grain section bar product has the advantages of good environmental protection, vivid wood grain appearance, various designs and the like, the trend of application in the fields of buildings and home decoration is increasing, the aluminum alloy wood grain section bar product becomes one of new growth points in the aluminum profile industry, the method for forming the wood grain grains is to form two layers of coatings through a special wood grain pattern die and a spraying technology, the product has the texture decoration effect of the original wood color due to the covering deviation and the color contrast of the two layers of coatings, however, the product formed by the method has inflexible texture design, abundant colors and complex texture die manufacturing process, and the method for forming the wood grain grains adopts a wood grain transfer film, the patterns on the transfer film are directly transferred on the outer surface of the aluminum product, and the wood grain imitation decoration effect can be obtained.
However, the wood grain texture formed by using the thermal life transfer is easy to fade and age after being irradiated by sunlight, has poor weather resistance, and can generate fading and luster loss, cracking, pulverization, mechanical strength loss and physical degradation when being used outdoors, so that the products are not suitable for being used outdoors. Therefore, it is necessary to invent a preparation method of the super weather-resistant wood grain aluminum profile to solve the above problems.
Disclosure of Invention
The invention aims to provide a preparation method of an ultra-weather-resistant wood grain aluminum profile, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the preparation method of the super weather-resistant wood grain aluminum profile comprises the following specific steps:
firstly, casting, namely reasonably proportioning raw material alloys according to production requirements, adding the raw material alloys into a smelting furnace for melting, and cooling and casting the molten aluminum into a round casting rod;
secondly, performing mechanical pressing and shaping, namely selecting an adaptive die according to production specifications and requirements, and extruding and shaping the round cast rod by using an extruder;
thirdly, oxidation treatment, namely performing surface oxidation treatment on the extruded aluminum profile to improve the corrosion resistance, the wear resistance and the surface flatness of the aluminum profile;
coating the transfer printing film, selecting a wood grain transfer printing film with a proper specification according to production requirements, and coating the wood grain transfer printing film on the outer side of the aluminum profile;
fifthly, laminating the transfer printing film, namely heating the transfer printing film by using an air heater, and extruding the transfer printing film after the transfer printing film is softened until the transfer printing film is completely laminated with the surface of the aluminum profile;
sixthly, thermal transfer printing, namely putting the aluminum profile wrapped with the transfer printing film into a heating chamber for heating until the pattern on the transfer printing film is transferred to the surface of the aluminum profile;
seventhly, removing the transfer printing film, namely taking the transfer printed aluminum profile out of the heating chamber for cooling, and then removing the transfer printing film;
eighthly, surface treatment, namely performing weather-resistant coating spraying on the aluminum profile with the transfer printing film removed so as to improve the weather resistance of the aluminum profile;
and ninthly, packaging and warehousing, after the weather-resistant coating is thoroughly dried and cured, washing the aluminum profile, drying, packaging by using non-woven fabric and kraft paper, and cutting into sections and warehousing according to production requirements after packaging is finished.
Preferably, in the second step, the extrusion speed of the extruder is controlled to be 20m/min-26m/min, the extruded aluminum profile needs to be straightened after being cooled to normal temperature, and the temperature of the straightening treatment is controlled to be 195-205 ℃.
Preferably, in the third step, the oxidation treatment specifically comprises the following steps:
1) surface pretreatment, namely cleaning the surface of the aluminum profile by adopting a chemical treatment or physical processing method until a pure, flat and smooth matrix is exposed on the surface of the aluminum profile;
2) anodizing, namely placing the treated aluminum plate in electrolyte such as sulfuric acid, chromic acid, oxalic acid and the like, and introducing external current for electrolysis to form an oxide film on the surface of the aluminum profile;
3) sealing holes, namely placing the aluminum profile with the oxide film formed on the surface in a high-temperature steam box, and treating the oxide film by high-temperature steam until the oxide film expands in volume to block the pores of the oxide film;
4) and (4) subsequent treatment, namely wiping the surface of the aluminum profile after the aluminum profile is subjected to high-temperature treatment is cooled so as to facilitate subsequent work.
Preferably, in the fifth step, when the hot air blower is used for heating the wood grain transfer film, the hot air blower should be prevented from being fixed in position so as to prevent the wood grain transfer film from being excessively heated and from being transferred in advance, and after the wood grain transfer film is softened, tools such as a rubber shovel should be immediately adopted for pressing until the wood grain transfer film is completely laminated with the aluminum profile.
Preferably, in the sixth step, the temperature of the heating chamber should be controlled to 175-.
Preferably, in the seventh step, when the transfer film is removed, the edge of the transfer film is opened, air is blown into the space between the transfer film and the aluminum profile through the blower, and the transfer film can be torn off after the transfer film is separated from the aluminum profile.
Preferably, in the step eight, a fluorocarbon coating can be adopted as the coating for the weather resistance treatment of the aluminum profile, and the specific operation steps are as follows:
1) aluminum profile pretreatment, namely performing decontamination treatment on the surface of an aluminum profile, sequentially performing alkali washing, acid washing and chromizing, and then performing pure water washing treatment on the aluminum profile;
2) spraying, namely spraying a primer, after the primer is dried and cured, spraying a finish paint and a finishing paint in sequence, and after finishing spraying the finishing paint, baking the aluminum profile at the temperature of 180-250 ℃ until the finishing paint is completely cured;
3) and (4) quality inspection, wherein the quality of the fluorocarbon coating on the surface of the aluminum profile is detected to ensure the weather resistance of the aluminum profile in long-term use.
The invention has the technical effects and advantages that:
1. according to the invention, the aluminum profile is subjected to oxidation treatment and surface treatment, the oxidation treatment is carried out before heat transfer printing, on one hand, the anti-oxidation effect of the aluminum profile in long-term use can be ensured, on the other hand, the wood grain transfer printing film can be prevented from influencing the aluminum profile in the heat transfer printing process, weather-resistant coating is adopted for the surface treatment of the aluminum profile, the aluminum profile and the transferred wood grain can be protected to the greatest extent, and the service life of the aluminum profile in outdoor use is prolonged;
2. according to the invention, the wood grain transfer printing film is laminated before heat transfer printing, so that the wood grain transfer printing film can be completely laminated with the surface of the aluminum profile, the transfer printing of wood grain grains can be obtained in the groove on the aluminum profile, and the grains on the surface of the aluminum profile are clearer and more attractive;
3. the invention finishes the spraying of the weather-resistant coating by adopting a three-time spraying mode, thereby ensuring the stability of the weather-resistant coating in long-term use and further ensuring the stability of the aluminum profile in long-term use.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a preparation method of an ultra-weather-resistant wood grain aluminum profile, which comprises the following specific steps of:
firstly, casting, namely reasonably proportioning raw material alloys according to production requirements, adding the raw material alloys into a smelting furnace for melting, and cooling and casting the molten aluminum into a round casting rod;
secondly, machine pressing and shaping, namely selecting an adaptive die according to production specifications and requirements, extruding and shaping the round cast rod by using an extruder, wherein the extrusion speed of the extruder is controlled to be 20-26 m/min, the extruded aluminum profile needs to be straightened after being cooled to normal temperature, and the temperature of straightening treatment is controlled to be 195-205 ℃;
and thirdly, oxidation treatment, namely performing oxidation treatment on the surface of the extruded aluminum profile to increase the corrosion resistance, the wear resistance and the surface flatness of the aluminum profile, wherein the oxidation treatment comprises the following specific steps:
1) surface pretreatment, namely cleaning the surface of the aluminum profile by adopting a chemical treatment or physical processing method until a pure, flat and smooth matrix is exposed on the surface of the aluminum profile;
2) anodizing, namely placing the treated aluminum plate in electrolyte such as sulfuric acid, chromic acid, oxalic acid and the like, and introducing external current for electrolysis to form an oxide film on the surface of the aluminum profile;
3) sealing holes, namely placing the aluminum profile with the oxide film formed on the surface in a high-temperature steam box, and treating the oxide film by high-temperature steam until the oxide film expands in volume to block the pores of the oxide film;
4) after the aluminum profile subjected to high-temperature treatment is cooled, wiping the surface of the aluminum profile so as to facilitate subsequent work;
coating the transfer printing film, selecting a wood grain transfer printing film with a proper specification according to production requirements, and coating the wood grain transfer printing film on the outer side of the aluminum profile;
fifthly, laminating the transfer printing film, namely heating the transfer printing film by using an air heater, extruding the transfer printing film after the transfer printing film is softened until the transfer printing film is completely laminated with the surface of the aluminum profile, wherein when the air heater is used for heating the wood grain transfer printing film, the position of the air heater is prevented from being fixed so as to prevent the situation that the partial heating of the wood grain transfer printing film is excessively transferred in advance, and after the wood grain transfer printing film is softened, pressing by using tools such as a rubber shovel and the like immediately until the wood grain transfer printing film is completely laminated with the aluminum profile;
sixthly, thermal transfer printing, namely heating the aluminum profile wrapped with the transfer printing film in a heating chamber until the pattern on the transfer printing film is transferred to the surface of the aluminum profile, wherein the temperature of the heating chamber is controlled to be 175-195 ℃, the heating time is controlled to be 5-15min, and the specific heating time depends on the specification of the wood grain transfer printing film;
removing the transfer printing film, namely taking the aluminum profile subjected to transfer printing out of the heating chamber for cooling, then removing the transfer printing film, wherein when the transfer printing film is removed, the edge of the transfer printing film is opened firstly, air is blown between the transfer printing film and the aluminum profile through a blower, and the transfer printing film can be torn off after the transfer printing film is separated from the aluminum profile;
eighthly, surface treatment, weather-resistant coating spraying is carried out on the aluminum profile after the transfer printing film is removed, so that the weather resistance of the aluminum profile is improved, fluorocarbon coating can be adopted as the coating for weather-resistant treatment of the aluminum profile, and the specific operation steps are as follows:
1) aluminum profile pretreatment, namely performing decontamination treatment on the surface of an aluminum profile, sequentially performing alkali washing, acid washing and chromizing, and then performing pure water washing treatment on the aluminum profile;
2) spraying, namely spraying a primer, after the primer is dried and cured, spraying a finish paint and a finishing paint in sequence, and after finishing spraying the finishing paint, baking the aluminum profile at the temperature of 180-250 ℃ until the finishing paint is completely cured;
3) quality inspection, wherein the quality of the fluorocarbon coating on the surface of the aluminum profile is detected to ensure the weather resistance of the aluminum profile in long-term use;
and ninthly, packaging and warehousing, after the weather-resistant coating is thoroughly dried and cured, washing the aluminum profile, drying, packaging by using non-woven fabric and kraft paper, and cutting into sections and warehousing according to production requirements after packaging is finished.
According to the invention, the aluminum profile is subjected to oxidation treatment and surface treatment, the oxidation treatment is carried out before heat transfer printing, on one hand, the anti-oxidation effect of the aluminum profile in long-term use can be ensured, on the other hand, the wood grain transfer printing film can be prevented from influencing the aluminum profile in the heat transfer printing process, weather-resistant coating is adopted for the surface treatment of the aluminum profile, the aluminum profile and the transferred wood grain can be protected to the greatest extent, and the service life of the aluminum profile in outdoor use is prolonged;
through laminating the processing to the wood grain rendition membrane before the heat-transfer seal to guarantee that the wood grain rendition membrane can laminate completely with the surface of aluminium alloy, so that also can obtain the rendition of wood grain line in the recess on the aluminium alloy, thereby make the line on aluminium alloy surface more clear, pleasing to the eye, accomplish the spraying of resistant coating through the mode that adopts the cubic spraying, thereby guaranteed the stability of resistant coating when using for a long time, and then guaranteed the stability of aluminium alloy when using for a long time.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The preparation method of the super weather-resistant wood grain aluminum profile is characterized by comprising the following specific steps of:
firstly, casting, namely reasonably proportioning raw material alloys according to production requirements, adding the raw material alloys into a smelting furnace for melting, and cooling and casting the molten aluminum into a round casting rod;
secondly, performing mechanical pressing and shaping, namely selecting an adaptive die according to production specifications and requirements, and extruding and shaping the round cast rod by using an extruder;
thirdly, oxidation treatment, namely performing surface oxidation treatment on the extruded aluminum profile to improve the corrosion resistance, the wear resistance and the surface flatness of the aluminum profile;
coating the transfer printing film, selecting a wood grain transfer printing film with a proper specification according to production requirements, and coating the wood grain transfer printing film on the outer side of the aluminum profile;
fifthly, laminating the transfer printing film, namely heating the transfer printing film by using an air heater, and extruding the transfer printing film after the transfer printing film is softened until the transfer printing film is completely laminated with the surface of the aluminum profile;
sixthly, thermal transfer printing, namely putting the aluminum profile wrapped with the transfer printing film into a heating chamber for heating until the pattern on the transfer printing film is transferred to the surface of the aluminum profile;
seventhly, removing the transfer printing film, namely taking the transfer printed aluminum profile out of the heating chamber for cooling, and then removing the transfer printing film;
eighthly, surface treatment, namely performing weather-resistant coating spraying on the aluminum profile with the transfer printing film removed so as to improve the weather resistance of the aluminum profile;
and ninthly, packaging and warehousing, after the weather-resistant coating is thoroughly dried and cured, washing the aluminum profile, drying, packaging by using non-woven fabric and kraft paper, and cutting into sections and warehousing according to production requirements after packaging is finished.
2. The preparation method of the ultra-weather-resistant wood-grain aluminum profile as claimed in claim 1, wherein in the second step, the extrusion speed of the extruder is controlled to be 20m/min-26m/min, the extruded aluminum profile needs to be straightened after being cooled to normal temperature, and the temperature of the straightening treatment is controlled to be 195 ℃ -205 ℃.
3. The preparation method of the super weather-resistant wood grain aluminum profile as claimed in claim 2, wherein in the third step, the oxidation treatment comprises the specific steps of:
1) surface pretreatment, namely cleaning the surface of the aluminum profile by adopting a chemical treatment or physical processing method until a pure, flat and smooth matrix is exposed on the surface of the aluminum profile;
2) anodizing, namely placing the treated aluminum plate in electrolyte such as sulfuric acid, chromic acid, oxalic acid and the like, and introducing external current for electrolysis to form an oxide film on the surface of the aluminum profile;
3) sealing holes, namely placing the aluminum profile with the oxide film formed on the surface in a high-temperature steam box, and treating the oxide film by high-temperature steam until the oxide film expands in volume to block the pores of the oxide film;
4) and (4) subsequent treatment, namely wiping the surface of the aluminum profile after the aluminum profile is subjected to high-temperature treatment is cooled so as to facilitate subsequent work.
4. The preparation method of the ultra-weather-resistant wood grain aluminum profile as claimed in claim 3, wherein in the fifth step, when the hot air blower is used for heating the wood grain transfer film, the hot air blower is prevented from being fixed in position so as to avoid the situation that the wood grain transfer film is transferred in advance due to partial over-heating, and after the wood grain transfer film is softened, the wood grain transfer film is immediately pressed by a tool such as a rubber shovel until the wood grain transfer film is completely attached to the aluminum profile.
5. The method for preparing the ultra-weather-resistant wood grain aluminum profile as claimed in claim 4, wherein in the sixth step, the temperature of the heating chamber is controlled to be 175-195 ℃, and the heating time is controlled to be 5-15min, wherein the specific heating time depends on the specification of the wood grain transfer film.
6. The method for preparing the ultra-weather-resistant wood grain aluminum profile as claimed in claim 5, wherein in the seventh step, when the transfer film is removed, the edge of the transfer film is opened, air is blown into the space between the transfer film and the aluminum profile through a blower, and the transfer film can be torn off after the transfer film is separated from the aluminum profile.
7. The preparation method of the super weather-resistant wood grain aluminum profile as claimed in claim 6, wherein in the step eight, fluorocarbon paint can be adopted as the paint for weather-resistant treatment of the aluminum profile, and the specific operation steps are as follows:
1) aluminum profile pretreatment, namely performing decontamination treatment on the surface of an aluminum profile, sequentially performing alkali washing, acid washing and chromizing, and then performing pure water washing treatment on the aluminum profile;
2) spraying, namely spraying a primer, after the primer is dried and cured, spraying a finish paint and a finishing paint in sequence, and after finishing spraying the finishing paint, baking the aluminum profile at the temperature of 180-250 ℃ until the finishing paint is completely cured;
3) and (4) quality inspection, wherein the quality of the fluorocarbon coating on the surface of the aluminum profile is detected to ensure the weather resistance of the aluminum profile in long-term use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111120676.0A CN113910821A (en) | 2021-09-24 | 2021-09-24 | Preparation method of super-weather-resistant wood grain aluminum profile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111120676.0A CN113910821A (en) | 2021-09-24 | 2021-09-24 | Preparation method of super-weather-resistant wood grain aluminum profile |
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| CN113910821A true CN113910821A (en) | 2022-01-11 |
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| CN202111120676.0A Pending CN113910821A (en) | 2021-09-24 | 2021-09-24 | Preparation method of super-weather-resistant wood grain aluminum profile |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6420309B1 (en) * | 1999-12-30 | 2002-07-16 | Mitsubishi Chemical America, Inc. | Method of transfer melt printing of metal substrates, and the decorative surface coated items prepared thereby |
| CN105986135A (en) * | 2015-01-31 | 2016-10-05 | 重庆麦卡瑞机械制造有限公司 | Process flow for production of aluminum product |
| CN110038783A (en) * | 2019-04-16 | 2019-07-23 | 张顺杰 | Aluminium alloy section surface method for waterproofing |
| CN111020662A (en) * | 2019-11-29 | 2020-04-17 | 安徽高德铝业有限公司 | Aluminum profile wood grain production process |
| CN112718425A (en) * | 2020-11-24 | 2021-04-30 | 广东坚美铝型材厂（集团）有限公司 | Preparation method of wood grain aluminum profile and aluminum profile |
-
2021
- 2021-09-24 CN CN202111120676.0A patent/CN113910821A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6420309B1 (en) * | 1999-12-30 | 2002-07-16 | Mitsubishi Chemical America, Inc. | Method of transfer melt printing of metal substrates, and the decorative surface coated items prepared thereby |
| CN105986135A (en) * | 2015-01-31 | 2016-10-05 | 重庆麦卡瑞机械制造有限公司 | Process flow for production of aluminum product |
| CN110038783A (en) * | 2019-04-16 | 2019-07-23 | 张顺杰 | Aluminium alloy section surface method for waterproofing |
| CN111020662A (en) * | 2019-11-29 | 2020-04-17 | 安徽高德铝业有限公司 | Aluminum profile wood grain production process |
| CN112718425A (en) * | 2020-11-24 | 2021-04-30 | 广东坚美铝型材厂（集团）有限公司 | Preparation method of wood grain aluminum profile and aluminum profile |
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Application publication date: 20220111 |