Advantages and manufacturing methods of titanium welded pipes in the field of seawater desalination in power plants

Titanium alloy materials have high chemical activity and a very high affinity with oxygen and nitrogen in the air. Titanium begins to absorb oxygen above 600 °C and nitrogen above 700 °C to form corresponding compounds. The result of oxygen and nitrogen contamination of titanium is to increase the strength and hardness of titanium and reduce the plasticity, and nitrogen has a greater influence than oxygen.

1. What are the advantages and uses of Grade 2 Pure Titanium Pipe compared with seamless pipes?

Titanium welded pipe has the following advantages:

(1) Pipe fittings with thinner wall thicknesses can be manufactured. For example, the wall thickness of welded pipes can be 0.3~0.5mm, while the minimum wall thickness of seamless pipes is 1mm;

(2) High utilization rate of raw materials;

(3) High production efficiency and good economic benefits.

Titanium welded pipes are mainly used in condensers of power plants, various heat exchangers in seawater desalination equipment, bicycle frames, motorcycle mufflers, etc.

2. What is the manufacturing method of titanium welded pipe?

Titanium welded pipe is made of cold-rolled sheet coil (titanium coil), and the circumference of the outer diameter of the finished pipe is subtracted from the required width of the weld as the width of the strip. After such a strip is continuously rolled and formed, it is TIG Welding is the finished product. The outer diameter of the production pipe diameter is 10~50mm, and the wall thickness is 0.3~2mm. After welding, there is no need to hammer welding slag and grinding, the surface is very smooth, and secondary processing such as pipe expansion and pipe bending can also be performed, which is almost no different from titanium pipe.