Titanium wheel bolts are high-performance wheel bolts made from lightweight yet super strong titanium material. Titanium alloy material has many advantages, such as high strength, lightweight, corrosion resistance, and so on. Advantages of titanium wheel alloy bolts include:
- Reduce vehicle weight, improve vehicle performance and fuel efficiency
- Improve the strength and rigidity of the hub, reduce the vibration and wear of the hub
- Anti-corrosion and high-temperature resistance, with a long service life
Titanium wheel screws are widely used in high-performance, racing, and luxury vehicles to enhance the overall quality and performance of the vehicle.
1. Physical properties of titanium wheel bolts
- Density: 4.51g/cm³, about 60% lighter than steel.
- Strength: high strength, high toughness, high corrosion resistance.
- Melting point: about 1668°C.
- Coefficient of thermal expansion: The coefficient of linear expansion is 8.6×10^-6/K.
- Thermal conductivity: 0.219W/(m·K).
- Conductivity: 17.0×10^6/(Ω·m).
- Magnetic permeability: 1.00005.
- Corrosion resistance: corrosion resistance to various acid and alkali media such as seawater, hydrochloric acid, and nitric acid.
2. Chemical properties of titanium wheel screws
- Very active, it is easy to react with oxygen, nitrogen, water vapor, carbon dioxide, etc. in the air to form oxides such as titanium oxide.
- It can react chemically with chlorine, sulfur, carbon, fluorine, and other elements.
- It can be dissolved in concentrated acid and sodium hydroxide solution, but not in hydrochloric acid and hydrofluoric acid.
- Oxidation reactions are prone to occur under high temperatures and anoxic conditions, producing toxic titanium dioxide vapors.
|
Grade |
Gr1 |
Gr2 |
Gr3 |
Gr4 |
Gr5 |
Gr7 |
Gr9 |
Gr12 |
|
N |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
|
C |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
|
H |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
|
Fe |
0.2 |
0.3 |
0.3 |
0.5 |
0.4 |
0.3 |
0.25 |
0.3 |
|
O |
0.18 |
0.25 |
0.35 |
0.4 |
0.2 |
0.25 |
0.15 |
0.25 |
|
Al |
|
|
|
|
5.5~6.75 |
|
2.5~3.5 |
|
|
V |
|
|
|
|
3.5~4.5 |
|
2.0~3.0 |
|
|
Pa |
|
|
|
|
|
0.12~0.25 |
|
|
|
Mo |
|
|
|
|
|
|
|
0.2~0.4 |
|
Ni |
|
|
|
|
|
|
|
0.6~0.9 |
|
Ti |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
In general, titanium wheel alloy bolts has excellent physical and chemical properties and is a very good material.
3. Production Process
The specific steps of the processing process of titanium wheel bolts are as follows:
1) Material preparation: select high-quality titanium alloy materials to ensure that they meet the technical requirements;
2) Manufacturing process: According to design drawings and technical requirements, select appropriate machine tools, fixtures, and tools, etc., and process materials such as cutting and drilling;
3) Heat treatment: Heat the finished titanium alloy rim bolts to make them have sufficient hardness and strength;
4) Surface treatment: According to customer requirements, use chemical or mechanical methods to treat the surface to achieve beautiful, corrosion-resistant, wear-resistant effects;
5) Inspection and packaging: Appearance inspection, size inspection, material composition inspection, etc. are carried out on the processed titanium wheel alloy screws, and packaging is carried out after passing the inspection.
In general, the processing process of titanium wheel screws requires multiple complex processes, skilled operators, and sophisticated equipment to ensure processing accuracy and quality.
Titanium wheel bolts are widely used for wheel mounting in high-performance racing and sports vehicles to enhance performance. Unlike traditional steel wheel bolts, titanium alloy bolts can reduce the overall weight of the wheel and improve the suspension effect and handling of the vehicle. This bolt is also commonly used in the aviation industry and military fields.
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