Case appreciation of anodized aluminum --- Louvre Langs Branch
Kazuyo Sejima and Ryue Nishizawa have won Pritzker Architecture Prize 2010 together. Her products make people feel the affect from her teacher Toyo Ito. Kazuyo Sejima has inherited the light and elegant from Toyo Ito, but further increased the floating feeling, exquisite, delicacy into the products which is full of feminine.
If you careful attention to Kazuyo Sejima’s products, you will see aluminum plate is one of the very common material she used.
Take her 2012’s products, Louvre langs branch as example, it is located on an abandoned mine field in the city of Lens in Northern France. That once thriving city because of mine in the 19th and 20th century, the government has a strategy plan to activate this area with culture. They hope it can be same as Bilbao at John museum to change the destiny of hard-living post-industrical city.
Five freely scattered boxes spread out flatly in the forest. From afar, whether it’s transparent or reflective, the surrounding landscape which is shined hazily is integrated with environment by the aluminum plate with unusually calm and weak reflection. If you look carefully, you can find that it is not a regular aluminum plate.
Indeed, the facade of museum has adopted special and polished Austria AMAG aluminum oxide plate in 2mm thickness.
Ryue Nishizawa said: because of the material and its soft reflection, the artwork, people and scenery are integrated together.
So you can see the unique reflection.
As well, this leads to an important concept - aluminum oxide plate.
Anodized oxidation is an electrolytic oxidation process. The aluminum plate is taken as the positive pole to put into electrolyte solution, the process to form alumina film in its surface by electrolysis is called anodized oxidation treatment of aluminum. The negative pole in this device is the material with high chemical stability in electrolytic solution, such as plumbum, stainless steel, aluminum and others. The principle of anodizing aluminum is essentially the principle of electrolysis. The aluminium in the positive pole oxidized by the exhaled oxygen, and forms anhydrous alumina film. The generated oxygen is not all interacted with aluminium, a part comes out as a gaseous state.
What’s the magic of aluminium plate after anodized oxidation treatment?
In short:
(1)Good fabricability: strong decoration of positive aluminium oxide plate, the hardness is moderate and it can be easily to bend forming. It can has continuous high-speed stamping, and convenient for processing into products directly. There’s no need for complex surface treatment, which can greatly reduce the production cycle and reduce the cost.
(2)Good weathering resistance: anodized aluminum plate of oxide film with standard thickness(3μm) is non-discoloring, non-corroding, non-oxidizing and restless for long time. The anodized aluminium plate with thickened oxide film (10μm) can be used outside, and it is non-discoloring after long-term exposure under the sun.
(3)Strong metal feeling, the hardness of aluminium plate surface is high after anodizing, it can reach the grade of gem and has good scratch resistance. The surface is not covered with paint, it keeps the metal color of aluminium plate and shows the modern metallic sense, which can improve the product level and additional value.
(4)High fireproofing: pure metal products, no paint and any chemical substances on its surface. It does not burn under 600 degree high temperature. There’s no toxic gas which can meet the fire protection requirements.
(5)Strong pollution resistance: no fingerprints and no stain marks. It is easy to clean and no corrosion spots.
(6)Good applicability: it is widely used in aluminum metal ceiling, curtain wall plate, aluminum-plastic panel, fire-proof plate, aluminum honeycomb board, aluminium panel, electrical panel, cabinet panel and furniture panel.
For designers, the most important of aluminium plate is strong metal texture and good appearance.
The anodized oxidation treatment is relatively mature on abroad, the technical architecture is also widely used.
Only the domestic technology of anodized oxidation treatment is not mature, the process stability needs to be improved.
The placode of good anodized oxidation aluminium plate also mainly relies on imported products, so the price is relatively high.
Take the aluminium plate in 3mm thickness for example, the price is above thousands Yuan per square meters. But the effect must be dramatic.
Finally we will have a recent project from Kazuyo Sejima.
Motian Beizhai Art Museum
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