Titanium foil

Titanium foil is titanium plate, strip, coil or sheet with thickness less than or equal to 0.1 mm. Another index to evaluate the thickness of titanium foil is the weight per unit area, such as g / m or oz / fi. The larger the value is, the greater the thickness is. The width of titanium foil is cut according to user's requirement. However, the larger the width, the higher the productivity. The length of roll body determines the maximum width of rolled foil. The wider, thinner and harder the rolled piece is, the more difficult it is to roll. The maximum width of rolled titanium foil is about 600mm. Titanium and alloy foils are mainly used in electronics, aerospace, instrumentation and other departments.

National standards

GB / T 3622-2012

American Standard: ASTM b265-2015

Dimension parameter

Thickness: ≤ 0.1mm

Width: ≤ 600mm

Length: customizable

Single roll weight: 0 ~ 100kg

Product features

Titanium foil is mainly used in aerospace, navigation, nuclear power, electronics, chemical industry, petroleum, precision manufacturing, Medical Pharmacy, etc.

Titanium has six characteristics

1. High strength: the strength / density ratio of titanium is better than other metals. Titanium 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 gears.

2. Corrosion protection: compared with stainless steel, titanium alloy has better corrosion effect in humid air and sea water. Titanium has great resistance to pitting corrosion, acid corrosion and stress corrosion. Titanium is resistant to corrosion of alkali, chloride, chlorinated organic matter, sulfuric acid and nitric acid.

3. High temperature resistance: the application temperature of titanium is higher than that of aluminum alloy. Titanium can work at 450-500 ℃ for a long time. Titanium alloy stil has high strength at 150-500 ℃. The working temperature of titanium can reach 500 ℃.

4. Low temperature resistance: titanium alloy still has its mechanical properties when working at low or ultra-low temperature. Titanium alloy with low temperature resistance and very low gap still has good ductility, so it is a good low temperature structural material.

5. Environmentally friendly metal: the thermal conductivity of titanium is lower than that of 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 drop by drop condensation between titanium and steam. This mode reduces the heat transfer resistance, and there is no scale on the surface of titanium, so that the thermal conductivity of titanium is better.

6. Good thermal conductivity: titanium is a non-magnetic metal, which can not be magnetized in a large magnetic field, and it is non-toxic and compatible with blood, so titanium has been applied in the field of medicine.

Mode of production

Rolling:

Flat roll strip rolling is the most widely used manufacturing method of titanium foil, which has high productivity, large scale and large output. Six high cold rolling mill or 20 high cold rolling mill are used for production.

Heat treatment:

There are two main heat treatment methods for titanium strip foil: vacuum annealing and continuous on-line protective annealing. Vacuum annealing is to place the rolled or flaky titanium foil in the vacuum furnace for heat treatment; continuous on-line protective annealing of titanium strip foil is a new technology in recent years, which has higher production efficiency and higher improvement in product quality compared with vacuum annealing, but the equipment threshold is higher, especially for product quality and Mechanical properties of titanium strip foil Guarantee.