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Titanium foil product characteristics
Titanium foil is mainly used in aerospace, navigation, nuclear power, electronics, chemical, petroleum, precision manufacturing, medical pharmaceutical and other aspects.
Titanium has six major characteristics:
1. High strength: The strength/density ratio of titanium is better than other metals, and it can be used to make components with high strength, good rigidity and light weight. Titanium is used in aircraft engines, frames, skins, fasteners and landing gear.
2 anticorrosion: compared with stainless steel, titanium alloy in humid air, seawater corrosion effect is better, titanium has a great resistance to point corrosion, acid corrosion and stress corrosion ability. Titanium resists alkali, chloride, chlorinated organics, sulfuric acid, nitric acid.
3. High temperature resistance: the application temperature of titanium is higher than aluminum alloy. Titanium can work at 450-500℃ for a long time. Titanium alloy stil has very high strength at the operating temperature of 150-500℃. The operating temperature of titanium can reach 500℃.
4. Low temperature resistance: When working at low temperature or ultra-low temperature, titanium alloy still has its mechanical properties. Titanium alloy with low temperature resistance and very low clearance still has good ductility. Therefore, titanium alloy is a good low temperature structural material.
5. Environmental metal: titanium has a lower thermal conductivity than carbon steel or copper, but titanium has very good corrosion resistance, so the thickness of titanium can be greatly reduced, and the heat exchange mode is drip by drip condensation between titanium and steam. This mode reduces heat transfer resistance, and there is no scaling on the titanium surface, resulting in better thermal conductivity of the titanium.
6. Good thermal conductivity: titanium is a non-magnetic metal and cannot be magnetized in a large magnetic field. Moreover, titanium is non-toxic and compatible with blood, so it has been applied in the medical field.

Titanium foil production method
Rolling:
Flat roll strip rolling is the most widely used method for producing titanium foil. It has high productivity, large scale and large output. The basic use of six high cold rolling mill or 20 high cold rolling mill for production.
Heat treatment:
There are two main ways to heat treat titanium strip foil: vacuum annealing and continuous on - line protection annealing. Vacuum annealing is to place coil or sheet titanium foil in a vacuum furnace for heat treatment. Continuous on-line protective annealing of titanium strip foil is a new technology introduced in recent years. Compared with vacuum annealing, it has a higher production efficiency and a higher quality of product foil, but the equipment threshold is higher, especially for product quality and mechanical performance indicators of titanium strip foil.
Titanium foil is a titanium plate, strip, roll or sheet with a thickness of 0.1mm or less. Another measure of the thickness of titanium foil is the weight per unit area. The greater the value, the greater the thickness. The width of titanium foil is cut according to user's requirements. However, the wider the width, the higher the productivity. The length of the roll determines the maximum width to roll the foil. The wider, thinner and harder the foil, the harder it is to roll. The maximum width of rolled titanium foil is about 600mm. Titanium and alloy foil are mainly used in electronics, aerospace, instrumentation and other sectors