The difference between ASTMB 265 titanium tube production line and stainless steel tube production line is mainly due to the special characteristics of this material, titanium metal.
The main difference between titanium metal:
1, material properties
(1) high specific strength, general industrial titanium tube specific strength (strength to weight ratio) in the metal structure material is very high, strength and iron plate is comparable, but the weight is only 57% of the iron pipe;.
(2) Heat and low temperature resistance performance, in the 500 ℃ atmosphere will maintain good strength and stability. And has good low temperature resistance, even at -250 ℃ under the ultra-low temperature, it has a high impact strength, can be resistant to high pressure and vibration; (2) heat resistance and low temperature performance, in the 500 ℃ atmosphere will maintain good strength and stability.
(3)Low chlorine precipitation potential and small over-potential, the chlorine discharge potential is not more than 1.12V under 2000A/m2 current density, and the over-potential is less than 20mv.
(4)Polarization rate is less than 30mv/10 units of current density.
(5)Long life time 0.5NH2SO4, 1A/cm2 current density, life time is more than 1500 minutes.
(6) another significant feature is strong corrosion resistance, because of its affinity for oxygen is very large, can generate a dense layer of oxide film on its surface, can protect titanium from medium corrosion, has a very good stability than the existing stainless steel and other non-ferrous metal corrosion resistance are good.
2, the field of application
The scope of application and the field is very wide, at present the industrial titanium tube not only in the aerospace, aviation industry has a very important application, and has been in the chemical industry, petroleum, light industry, power generation and many other industrial sectors are widely used. Along with the continuous progress of China's equipment manufacturing technology, titanium equipment and materials will continue to broaden the field of application.
3, price
Titanium tube price is at least 15 times more than the price of stainless steel tube.
4, quality requirements
Titanium tube must be bright solution treatment, and the precision requirements of the pipe and weld quality requirements are higher than the stainless steel pipe.
Comprehensive titanium tube of these special characteristics, so the difference between titanium tube production line and stainless steel tube production line:
1, the production line layout is different, processing precision requirements;
2, titanium pipe mold design principle and stainless steel pipe mold is completely different, the material used in the mold is also different;
3, titanium steel quality is special, so the welding characteristics with stainless steel is different, must use special welding methods to weld the quality of the seam;
4, high degree of automation of titanium tube production line, titanium tube production of finished products to reduce the rate of human error;
5, titanium tube production line needs online detection system and fault alarm system.
