1. Hot rolled titanium plate

Titanium thick plate is made of raw rolled or forged slabs. It is heated, rolled, hot-corrected, heat-treated, interrupted, orthopedic, descaled, and pickled. According to the requirements of the surface, if it needs to be polished, it is polished with abrasive cloth belt.

2. Hot rolled titanium strip coil

Hot-rolled titanium strip coils use the same titanium slab as the thick plate as the raw material. Due to the oxygen diffusion layer generated when the titanium slab is heated, it will cause defects in the sheet during cold rolling, which needs to be removed before cold rolling; therefore, the yield, surface In terms of quality, the thinner the thickness of the diffusion layer, the better.

For this reason, the heating temperature of hot rolled titanium strip coils should be set as low as possible in the case of ensuring stable rolling and coiling.

The technological progress of hot-rolled titanium strip coils mainly discusses the most suitable heating conditions (temperature, time, air ratio, etc.) to reduce the oxygen diffusion layer; the modification of fixed components (rails, etc.) to prevent titanium strips and fixed parts (Rails, etc.). In the future, the transformation of special equipment for hot rolling of titanium should be carried out to further suppress the growth of the oxygen diffusion layer, prevent scratches more effectively, and improve the strip quality.

3 Cold rolled titanium plate

Cold-rolled titanium plate is made of hot-rolled titanium strip coil (thickness: 3mm ~ 6mm, width: 600mm ~ 1600mm, single coil quality: 10t or less).

The general production process is atmospheric annealing, dephosphorization, removal of surface defects, cold rolling, cleaning, vacuum annealing, flat rolling, orthopedic, finishing (striping, plate shearing, etc.). Alternatively, the atmospheric vacuum dephosphorization can be used instead of the above vacuum vacuum annealing process.

In recent years, the technological progress of cold-rolled titanium plate is mainly manifested in 4 aspects;

Descaling; cold rolling process; annealing process; flat rolling and finishing technology.

At present, there are three ways of annealing cold-rolled sheet: (1) Vacuum annealing. (2) Atmospheric annealing. (3) Continuous annealing in a vacuum atmosphere.