Due to its excellent corrosion resistance, titanium is widely used as a variety of chemical reaction containers and heat exchange materials. This problem is particularly prominent when used as a structural part. The effective solution is to use titanium steel composite plate. Titanium and ordinary steel composite known as titanium steel composite, both the corrosion resistance of titanium, and the strength of ordinary steel plate as a structure, the important is that the cost has been greatly reduced.
As a new type of composite material, steel-titanium composite plate has excellent comprehensive properties and can meet the requirements of component materials such as aircraft skin. In order to solve the problems of complex production process, high cost of raw materials and poor interfacial properties, a semisolid cast-rolling composite forming method is proposed. Composite through reasonable control parameters, preparation of the interface performance good steel and titanium clad plate, the main research contents and results were as follows: 1. In the preparation of titanium alloy semi-solid slurry by electromagnetic stirring device, the organization was successfully achieved even contain 3 wt. % Ni titanium alloy slurry, the titanium alloy semi-solid slurry of solid and stirring temperature relationship. 2. Finite element software ANSYS and deform-3d were used to conduct numerical simulation research on the steel-titanium semi-solid cast-rolling composite process :1) it was preliminarily determined that the cast-rolling composite process could be carried out smoothly under the selected composite process parameters; 2) predict the position of solidification front of semi-solid slurry and the change trend of temperature field under different process parameters, so as to provide reference for the development of steel-titanium semi-solid casting and rolling composite test.
In the production of titanium steel composite plate, the common quality problems are: composite plate defects and welding defects. The former is mainly due to insufficient bonding rate and local surface cracks of titanium layer and steel layer. The latter mainly have pores, cracks, non - penetration, slag inclusion. The application in the field of equipment mainly refers to the chemical equipment of similar manufacturing equipment of p-phthalic acid and the electric equipment of condenser tubes and plates for power plants. Especially in the power sector, the total number of shipments has reached more than 1000 pieces. This field is the pillar industry of titanium steel composite plate. Recent topics: paper mill bleaching tanks, wastewater treatment plants in the subchlorous acid harsh sodium treatment tank is also using titanium steel composite plate.
