Titanium screws have the characteristics of low density, high specific strength, good corrosion resistance, low thermal conductivity, non-toxic and non-magnetic, weldable, good biocompatibility, and strong surface decoration. It is a kind of light weight, high strength and corrosion resistance. Structural materials are widely used in high-precision fields such as aerospace, medical equipment, sporting goods, and precision products.

　　 1. Medical

　　Titanium material is widely used in the manufacture of medical equipment, artificial hip joints, knee joints, shoulder joints, hip joints, cranial bones, active heart valves, and bone fixation clips.

Before the use of titanium, medical orthopedics usually used stainless steel as a bone material. However, the use of stainless steel has a disadvantage, that is, it will rust. This means that the stainless steel sheet must be removed after the bone is healed. However, this is for the patient. It is a very painful thing. After the use of titanium "artificial bone", the orthopedics technology is completely changed, and the stainless steel sheet is abandoned. You only need to use titanium sheets and titanium screws where the bones are damaged. After a few months, the bones will re-grow in the holes and screws of the titanium sheets. The new muscle fibers are wrapped in the titanium sheets, and the titanium bones It is connected to flesh and blood just like real bones, and plays a role of support and reinforcement.

At present, the patella claw commonly used in orthopedics in hospitals is made of titanium. It can be bent into any shape at low temperature in the refrigerator. During the operation, the claws are broken apart and placed on the fractured patella of the patient. When the temperature rises, it will grip the patella tightly and turn into a preset shape

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2. Sports goods field

　　 The two advantages of high strength and low density also make titanium widely used in the field of sporting goods. For example, high-quality bicycle frames and golf clubs are usually made of titanium, which is not only strong and durable, but also light in weight.

　　 2. Titanium applications in the aerospace and military fields

Titanium has good durability, so in aircraft engines, bulletproof parts, strengthening parts, reinforcement parts, combustion chambers, turbine shafts, turbine disks, nozzles, etc., most of them are made of titanium alloy materials. It can be seen that the titanium metal element is Good material for the production of airplanes.

　　 With the development and utilization of titanium metal, people have discovered that titanium is not only an ideal material for aviation equipment, but also the preferred material for building ships and submarines. When a submarine sails in the sea, the lower it sails, the greater the pressure it will withstand. Titanium has a strong pressure resistance. The nuclear submarine made of titanium alloy is more than twice that of ordinary submarines.

Titanium material has the ability to resist acid and alkali corrosion. It can be immersed in seawater for 5 years without rusting. Generally, steel will corrode and deteriorate in seawater. However, if the shell of a ship is made of titanium alloy, seawater cannot corrode it. Titanium material can not only resist deep sea pressure, It can resist seawater corrosion and is a good material for shipbuilding.

It can be seen that as a lightweight, high-strength, corrosion-resistant material, titanium is widely used in aerospace, military weapons, medical equipment, sporting goods, and high-end products. More and more civilian fields have begun to use this metal. In a sense, the use of titanium has become synonymous with high-end.