Surface treatment production line

to deposit a layer of organic coating film on the surface of the anodized film of aluminum profiles under the action of an electric field , and then solidify it at high temperature. The surface of the electrophoretic coating profile is highly smooth, the color is soft and elegant, and the texture of the metal is highlighted. The layer of paint film covering the surface is crystal clear, which can not only resist the erosion of water, mud, mortar and acid rain, but also has a good coating effect on special-shaped profiles, which is incomparable to other treatment methods. Nanshan electrophoretic oxidation workshop has 13 production lines including Japan Aluminum Max vertical oxidation coloring electrophoretic coating, horizontal oxidation and chemical polishing coloring, which can produce a variety of electrophoretic products such as flat, sanded, and colored. The production capacity reaches 220,000 tons.

Fluorocarbon spraying process for aluminum profiles is a process that uses a gas pressure spray gun to evenly spray fluorocarbon coating on the surface of the profile, creating a solid fluorocarbon paint film layer for the aluminum profile. This coating is based on fluorocarbon paint (polyvinylidene fluoride resin) and is matched with metallic aluminum powder to form a high-grade spray material. Unlike powder spraying, fluorocarbon spraying sprays atomized fluorocarbon resin paint, and usually requires two to three layers of paint. Its production process includes key steps such as pre-treatment, primer spraying, topcoat, varnish and curing. The film layer exhibits excellent resistance to fading and frosting, and can effectively resist the erosion of atmospheric pollution (such as acid rain, etc.). Its UV resistance and crack resistance are excellent, and it can adapt to harsh weather environments.

Due to the stable chemical properties of the material and excellent adhesion effect, fluorocarbon spraying has become the mainstream technology for processing high-end aluminum alloy door and window profiles. Although its price is relatively high, it is widely used in aircraft, ships, building curtain walls, and high-end system doors and windows . Nanshan Aluminum's fully automatic powder spraying and fluorocarbon spraying production lines have 18 production lines, including Italian Davidson Cometto vertical, Japanese Lanshi fully automatic fluorocarbon spraying, and horizontal powder spraying. The maximum cutting length that can be sprayed is 13 meters. The production capacity reaches 500,000 tons.

wood grain transfer process for aluminum profiles is to transfer the wood grain pattern to the surface of aluminum alloy through a thermal transfer film or paper. This process does not require the use of any glue, but rather the pattern is firmly fixed to the aluminum through heat treatment. Before transfer, the profile usually needs to be pickled to enhance the adhesion of the base color. Then, the wood grain base powder is sprayed on the profile, and the air is extracted when the film is applied, and finally baked in an oven at 190°-200°. In this way, the ink will be thermally sublimated onto the coating to form a realistic wood grain effect. Nanshan Aluminum's wood grain transfer equipment has an Italian David Xincomato vertical wood grain spraying production line.

In 2020 , the 2020 Enterprise Standards "Leader" Annual Conference was held in Beijing, hosted by the China National Institute of Standards, the Enterprise Standards "Leader" Alliance, China Standardization Magazine, and Xinhuanet Client. This evaluation involves the aluminum alloy building profile industry, covering five major areas: anodized profiles, electrophoretic paint profiles, powder coating profiles, spray paint profiles, and thermal insulation profiles . Nanshan Aluminum was shortlisted for three enterprise standards, leading the industry with strong strength. In the list of 2020 enterprise standard "leaders" released at the 2020 Enterprise Standard "Leaders" Annual Conference, three standards of Nanshan Aluminum, Q/370681NSLY006-2020 "Aluminum Alloy Building Profiles Painted Profiles", Q/370681NSLY 008-2020 "Aluminum Alloy Building Profiles Anodized Profiles (Curtain Wall-NS1201)", and Q/370681NSLY 009-2020 "Aluminum Alloy Building Profiles Electrophoretic Painted Profiles (n1634a)", are on the list, becoming the backbone of quality upgrades. The formulation of special standards in various fields is aimed at promoting product technology upgrades and quality improvements. The transformation of standards tests the comprehensive strength of enterprises in resources, technology, research and development, and other aspects. As an industry leader, Nanshan Aluminum is working hard to bring the surface treatment process level of aluminum profiles to the forefront of the world.

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