Advantages of titanium coils
1. Excellent corrosion resistance in many media.
2. Smooth surface, no dirt.
3. Low density, high strength and light weight.
10 properties of titanium in titanium coiler:
1. Low density, high specific strength
The density of titanium is 4.51g/cm3, higher than aluminum, lower than steel, copper, nickel.
2. Corrosion resistance
Titanium is a very active metal. Its equilibrium potential is very low, and the tendency of thermal corrosion in the medium is very high. But in fact, titanium is very stable, in oxidation, neutral, weak reduction and other media have corrosion resistance. Because titanium and oxygen have a strong dense and force, in oxygenated air or oxygenated media, titanium surface formation of dense, strong adhesion of the inert oxide film, which can prevent the substrate corrosion. Even mechanical wear and tear can be self-recovering or restored. The results show that titanium is a metal with a strong tendency to passivate, and titanium oxide films at medium temperatures below 315c maintain this property.
In order to improve the corrosion resistance of titanium surface treatment techniques such as oxidation, electroplating, plasma spraying, ion nitriding, ion implantation and laser treatment of titanium were studied. In order to meet the requirements for the use of metal materials such as sulfuric acid, hydrochloric acid, methylamine solution, high temperature wet chlorine and high temperature chlorides, a series of corrosion-resistant titanium alloys such as titanium-molybdenum alloy, titanium-palladium and titanium-molybdenum-nickel alloys have been researched and developed. Titanium castings are made of titanium 32 molybdenum alloy. In the environment where crevice corrosion or pitting corrosion often occurs, Ti-0.3Mo-0.8Ni alloy or Ti-0.2Pd alloy is used locally, and good results have been achieved.
3. Good heat resistance
The new titanium alloy can be used at 600℃ or high temperature for a long time.
4. Good low temperature resistance
Titanium alloy TA7 (Ti-5Al-2.5Sn), TC4 (Ti-6Al-4V) and Ti-2.5Zr-1.5Mo and other low-temperature titanium alloys represented by its strength with the temperature decrease and increase, but the plasticity change is not large. In -196-253 ℃ low temperature to maintain good ductility and toughness, to avoid the cold brittleness of the metal, is the ideal material for low-temperature containers, storage tanks and other equipment.
5. Good anti-damping properties
Compared with steel and copper, titanium has a longer vibration decay time after being subjected to mechanical and electrical vibration. The use of titanium this performance can be used for tuning forks, academic pulverizer vibration components and sound speakers vibration film.
6. Non-magnetic, non-tarnish quality
Titanium is a non-magnetic metal, not magnetized in large magnetic fields. It is non-polluting, compatible with human tissue and blood, and is used by academics.
7. Tensile strength close to its yield strength
This property indicates that the yield strength (tensile strength/yield strength) ratio of titanium metal is very high, indicating that the plastic deformation of titanium metal during the forming process is very poor. Because the ratio of yield strength to elastic modulus of titanium is large, the resilience of titanium in the forming process becomes large.
8. Good heat transfer performance
Although the thermal conductivity of titanium metal is lower than carbon steel and copper, but because of its excellent corrosion resistance, its wall thickness can be greatly reduced, the heat transfer between the surface and the steam is condensed, if the surface is cooled, it can reduce the heat cluster. Because there is no scaling on the surface, the heat transfer performance of titanium can be significantly improved.
9. Low modulus of elasticity
The modulus of elasticity of titanium at room temperature is 106.4GMPa, 57% of steel.
10. Gas-absorbing properties
Titanium is a kind of reaction with many elements and compounds at high temperature. Titanium gas absorption mainly refers to the reaction with carbon, hydrogen, nitrogen, oxygen at high temperature.
