Characteristics of titanium alloys for construction

Titanium alloys are widely used in various fields because of their high strength, good corrosion resistance, and high heat resistance. Many countries in the world have recognized the importance of titanium alloy materials, have carried out research and development on them one after another, and have been practically applied by titanium alloy manufacturers.

Grade 5 Ti-6Al-4V Titanium Sheet is also a building material. It is mainly used in the exterior wall decoration of buildings, roof surface decoration, waterproofing, etc. It is also used in building column decoration, monuments, signs, house numbers, railings, pipes, corrosion protection, etc. covered, etc. For example, in 1997, the Guggenheim Museum in Bilbao, Spain used titanium metal panels as the exterior decoration of building.

Titanium alloy material is an alloy composed of titanium and other elements. It was developed in the 1950s and was mainly used in the aviation field. It has the characteristics of high strength, good corrosion resistance, and high heat resistance. Use at a temperature of 600°C.

ASTM F136 6Al-4V ELI Titanium Bar has a satisfactory natural luster, sparkle, different colors after surface oxidation, and excellent corrosion resistance. Because of these characteristics, they were later used as building materials in buildings. However, the price is relatively expensive, and it is generally used in public buildings with relatively high requirements.

Performance characteristics of titanium flanges for chemical ships and aviation

Titanium flange is a non-ferrous or titanium alloy connecting pipe structure. The titanium flange has holes, and the two flanges are closely connected. The flanges are sealed with gaskets. Flanged pipe parts refer to pipe fittings with flanges (joints or joints).

Threaded or welded joints are available. The flange joint consists of a pair of flanges, a gasket, and several bolts and nuts. The gasket is placed between the two flanged glands. After tightening the nut, when the specific pressure of the gasket surface reaches a certain value, the sealing surface is filled unevenly and the connection is tight.

According to the structure, it can be divided into titanium flange, butt welding titanium flange, threaded titanium flange, blind titanium alloy flange, etc.

Product Specifications: Various specifications are produced according to flange standards, or non-standard flanges can be produced according to the drawings provided by customers.

Manufacturing method: free forging, die forging, precision forging, welding.

Inspection method: radiographic inspection, dyeing, flaw detection, hydrostatic test, etc. can be carried out according to customer needs.

The cladding rolling process will bring changes to the production of titanium alloy sheets

The production of domestic titanium alloy sheets is still mostly rolled by the single-piece method. Due to the poor low-temperature plasticity of titanium alloys and large cold deformation work hardening, it is extremely difficult to produce thin plates by the single-piece method. In order to make the rolling process go smoothly and reduce the temperature drop of the metal during the forging process, especially to reduce the chill on the surface of the billet, the die for forging titanium alloy needs to be preheated. Otherwise, the metal temperature drop and surface chill will make the metal not fill the mold groove well and may cause many cracks. Die preheating systems for titanium alloy forging are usually detachable, but sometimes a heating device mounted on the press is also used. Detachable die heating systems are usually gas heaters that slowly heat the die to the desired temperature range before the modules are assembled into the forging equipment. The heating device solidified on the press usually adopts induction heating or resistance heating. With the expansion of the market, the new technology of superplastic forming-diffusion joining of titanium alloy sheet has been widely used.

According to statistics, in the production of TC4 titanium plate, the invisible loss caused by alkaline pickling and grinding is as high as about 30%, the comprehensive yield is only about 35%, and the production cycle is long and the performance is unstable. The deformation rate of the cold rolling degree is not more than 25%, and it requires multiple cold rolling, intermediate annealing, and alkali pickling, and process defects such as cracks, edge cracks, slag removal, and cratering are prone to occur during rolling. Production process of titanium alloy plate (below 1.0mm), titanium alloy cross rolling and beta thermal process, self-developed stack rolling and clad rolling process, titanium and titanium alloy warm rolling technology, self-developed atmosphere protection controllable Cooling gravity creep correction technology and other key technologies for a series of flow rectification processes. In the test of the new production process of TC4 sheet, TC4 sheet with thickness of 0.6mm has been produced by cladding and rolling process, and it has been put into mass production.