News

The Application of Titanium and Titanium Alloy in New Buildings

Metal materials are used in buildings, especially roofs, first using copper, followed by the development of surface treated steel plates, aluminum, stainless steel, and titanium. With the continuous development of the national economy and the continuous improvement of people's living standards, people's requirements for urban buildings, especially the aesthetics of buildings, are becoming increasingly high. With the continuous innovation and development of the building materials industry, architects have been pursuing the use of new building materials that are more advanced than traditional materials in recent years. Titanium metal has many excellent properties, fully meeting many special performance requirements for building materials, and is therefore highly favored by architects and the construction industry.

1、 Titanium metal is very suitable for use in construction

Pure titanium has moderate strength and excellent welding performance, making it the most suitable for roofs and walls of buildings. Ti-15-3 alloy has high strength and is used for various supports and beams in buildings. The recently emerging methods and technologies for processing stainless steel labels are all used for cutting, forming machine processing, and titanium connections. Titanium material can be connected between components using a universal TIG welding process, and the self-healing oxide film of titanium material can prevent welding damage. In addition, secondary processing technology is adopted and the surface of titanium materials is processed according to customer needs, such as etching, embossing, spinning, sandblasting, shot peening, electroplating, and punching. As a building material, titanium not only has a natural luster, but also can present different colors after oxidation,

In addition, its excellent corrosion resistance does not require a layer of anti-corrosion film. Due to the low reflectivity of titanium material and its light silver gray color, its natural color is satisfactory. After annealing and acid washing, the surface of titanium material shines brightly. We adopt the method of anodizing the metal and adjusting the surface natural gloss before oxidation to change the color tone to meet the customer's color requirements. The oxide film of titanium is formed by the reaction between the surface of titanium metal and air/water. Compared to the surfaces of stainless steel and aluminum,

The outstanding corrosion resistance of titanium material is precisely this layer of oxide film. The different colors on the surface of titanium material depend on the different thicknesses of the oxide film (<10nm, silver; 12nm, gold; 20nm, brown; 35nm, blue). By adjusting the thickness of the oxide film and the surface glossiness of titanium material, the surface of titanium material for construction can present a colorful appearance. The surface structure of titanium materials used in construction is diverse, ranging from soft and rough to silver shiny surfaces. After anodizing treatment, its color and luster will not fade away, and the oxide film will thicken. In this way, color is generated due to the interference rainbow principle of light. When light passes through this layer of oxide film, part of it will be reflected, part will be refracted, and part will be absorbed. The phase of the reflected light is different, and the interfering surface will appear in different colors. In order to maintain the stability of the color of titanium materials when used in construction, surface gloss control technology should be considered in actual production. That is, the adjustment of annealing and acid washing conditions can be fed back from the gloss monitoring device for detection

Adjust the conditions of annealing (temperature, time) and pickling (temperature, time, acid ratio) according to the results.

2、 The application of titanium metal in construction in Japan is the first country to apply titanium to buildings, and also the country with the most titanium application in buildings, mainly used on the roof of buildings, followed by building curtain walls, harbor facilities, bridges, underwater tunnels, outer walls, decorations, small accessories, column decorations, exteriors, monuments, signs, door signs, railings, pipelines, anti-corrosion coatings, etc. There are examples of buildings using titanium metal for roofs and curtain walls in the UK, France, the United States, Spain, the Netherlands, Canada, Belgium, and Switzerland. Countries such as Sweden, Singapore, and Egypt have started using titanium metal in some new buildings. In 1997, the Guggenheim Museum in Bilbao, Spain was constructed using titanium plates to create curved architectural shapes. Abu Dhabi Airport also uses titanium, with a usage of nearly a hundred tons, making it the first airport in the world to use titanium as a building structural material.

The first building in China to propose the use of titanium metal was the National Grand Theatre, and the first to be used was the Hangzhou Grand Theatre. There are also buildings that use titanium metal, such as the entrance hall of China Nonferrous Engineering Design and Research Institute, the first pavilion of Donglai in Linping, Hangzhou, the roof of Shanghai Circus and Acrobatic Theatre, and Dalian Shengya Polar World. There are titanium sculptures used for urban sculpture, such as "Dolphin and Man" in the Riverside Park of Baoji City, Shaanxi Province, "Qiankunqiu" in the central square of Xingtai City, Hebei Province, and "Rooster Dawn" in the pedestrian street of Baoji City, Shaanxi Province.

3、 The economic analysis of the application of titanium metal in construction has only a 30 year history. There are still many topics that need to be studied around the production, surface treatment process, and design use of titanium building materials, especially the research and development of low-cost production and surface treatment processes. The comprehensive balance between the primary investment cost and long-term maintenance cost of construction should also be included in people's vision. The production technology of titanium metal in our country is basically mature, and the production design scale is large. However, the sales market is not large, and the economic benefits are not ideal. The main reason is the lack of products with good technical and economic performance that meet customer satisfaction. The current situation of titanium used in construction in China is as follows:

1. Single product. As a structural material, there are not enough varieties for users to choose from. As a surface decorative material, China has not yet formed a large scale of titanium alloy surface treatment, and it is still in the stage of manual workshop production, which is not conducive to the large-scale use of titanium as a decorative material.

2. Low grade. There are no high-quality products, let alone a large supply of titanium composite materials. We can only produce some models, city sculptures, handicrafts, etc., without high-grade surface decoration materials and their production methods.

3. The price is high. Due to the lack of stable and high-quality products, it is impossible to have widespread application on a large scale, resulting in small usage, high prices, and even less conducive to promotion and use.

4. Designer factors. There is no similar vocational training system in our country, and after the invention of new materials, they are not stored in the thinking of architectural designers, resulting in very few titanium metal designs being included in original architectural designs, and their uses are obviously limited.

[ 上一页 ] Reliable Titanium ...[ 下一页 ] The application of...