Aluminium profile powder coating 3D wood grain effect to achieve the process (1)

Abstract
chinese people like wood, Chongmu, Tibetan wood, wood can be said to be not abandoned. Wood has always been our primary choice for maintaining our home. With the progress of the times, solid wood is becoming scarcer and rarer, and various materials have become the trend of replacing solid wood by

. Home improvement field, the use of aluminum profiles has become mainstream, in recent years more mature imitation wood-print effect of the process of thermal transfer, but its effect to achieve a complex process, the general product outdoor durability performance deviation, visual effect dry is its main shortcomings. Fujian Wan'an Group Industrial Co., Ltd. and Foshan Fine Machinery Manufacturing Co., Ltd., jointly developed a powder coating 3D wood grain effect molding process, through unique equipment using powdering method to achieve the wood grain effect, its advantages are: 1. Although double-coated double roasting, but the coating effect for the process parameters of small sensitivity, adapt to a variety of manufacturers of the coating environment. 2. Coating effect has a certain three-dimensional sense, decorative effect is better than thermal transfer. 3. Powdering method for coating performance is more controllable, outdoor-type products can be xenon lamp 2000 hours of testing, the appearance of no significant changes;
key words: powder coating wood grain weather-resistant
foreword
with the gradual improvement of people's living standards, the appearance of the field of home improvement performance requirements are getting higher and higher. Wood and human affinity, making it the first choice of home improvement materials, but the rarer the solid wood materials, more and more expensive, as well as fire prevention, moisture, anti-corrosion and other performance of the innitable deficiencies, it is not widely used in the low-end consumer market. And now commonly used wood core board, medium density fiberboard, although the price is low, but it has the possibility of continuous formaldehyde release, the overall materialization performance is not good shortcomings, but also widely criticized by consumers. In recent years, the rise of aluminum alloy furniture, very good solution to the above various materials. Aluminum alloy light quality, high strength, moisture, fire protection, corrosion, insulation and other aspects of performance is very excellent, and has excellent mechanical performance and processing performance, can be manufactured into a variety of life required furniture types, the only difficulty is insufficient affinity with people, metal stiff, cold contact led to its home improvement area promotion is limited. Therefore, in recent years, many manufacturers of research and development direction is on how to decorate the aluminum surface to improve its affinity with humans, in order to broaden its application in the field of furniture.
aluminum alloy surface treatment
aluminum in the earth's crust content is second only to oxygen and silicon, is one of the rich metal elements. Aluminum and its alloys, with their excellent characteristics, are widely used in aviation, aerospace, construction, machinery and equipment, bridges, vehicles, ships, household appliances, electronic equipment and other aspects, aluminum and its alloys have become an important role in China's national economy.
the nature of aluminum is more lively, easy to react with other substances, general application products need to cover the surface of a film to achieve the purpose of protection. Commonly used methods are coating technology, conversion film technology, high-energy beam surface reinforcement, laser surface reinforcement, electrophoresis paint, paint spraying, powder spraying and so on. Conventional treatment is generally monochrome, paint and powder coating can only make some simple color, a simple coating can not form a specific pattern effect.
At present, the civil field, more economical and environmentally friendly coating methods non-powder spraying, powder coating production and coating process produced very little VOC, excellent coating performance, has been the major aluminum manufacturers the most important coating means. After years of development, powder coating monochrome coating technology has been very mature, but aluminum applied to home furnishings, furniture field, powder coating effect is too monotonous, so powder coating first layer coating, and then the use of thermal transfer technology in the coating to form a beautiful pattern of the technical solution has been widely used.
Thermal transfer process is in the aluminum alloy substrate powder coating after the completion of the coating, through glue or vacuum on the coating surface covered with a layer of the established texture of the thermal transfer film, through heating up the thermal sublimation ink transfer, penetration into the inside of the coating, thus forming the required appearance effect. Heat transfer pattern because it is formed by heat sublimation ink, the stability of the overall appearance and the characteristics of the ink itself have a direct relationship, the current conventional product weather resistance performance is poor, color difference stability is poor, the application of the color effect can be adjusted low. These three defects directly limit the application range of aluminum alloy materials in the thermal transfer process, although in recent years, many manufacturers at home and abroad have developed weather-resistant thermal transfer film, but the cost is high, the overall technical maturity has yet to be verified.
Powder 3D wood grain effect process
Fujian Wan'an Group Industrial Co., Ltd. and Foshan Fine Machinery Manufacturing Co., Ltd., jointly developed aluminum profile powder coating 3D wood grain effect molding process. The process by powdering, double-coated double roasting way to form a wood-print effect. Powder coating color and performance of the underlying and surface layers can be flexibly adjusted to customer needs, whether it is weather resistance, surface resistance, heat and cold shock resistance can meet the requirements of different applications.
process:
. 1. One coating (spraying base color)
2.one baking (curing base color)
3.2 coating (sprinkling face)
4.2 baking (curing face).
One coating two baking is no different from the traditional process, only two coatings use different equipment to achieve the purpose of forming a specific pattern, all temperature, time, travel speed and other parameters are adjusted with the final appearance effect. Equipment footprint and ancillary equipment requirements are not stringent, conducive to transformation and transformation.
01, powder 3D wood pattern effect two coating process
Figure 1 powder coating equipment illustration sketch
the above picture is a two-coat process signal sketch, powder coating is by free fall to aluminum work pieces, the formation of its texture pattern is dependent on the conductive plate, the rhythmic action of the powder collector, so that the powder in accordance with the established pattern in the aluminum surface formation accumulation. The adjustment of pattern is achieved by adjusting the motion parameters of each working node.
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