Titanium Spring
The Processing Process Of Titanium Springs
1. Material Selection And Pretreatment
Material Selection: High-strength β titanium alloys (such as TB3, TB6, TB9) are usually selected, which have good processing properties after solution treatment. For example, TB3 and TB6 are suitable for hot coiling processes for large diameter springs (12-45mm).
Blanking: Cutting with a band saw, controlling the length deviation and grinding the cutting surface to ensure the accuracy of subsequent molding.
2. Heating And Molding
Roll Heating: The heating temperature is adjusted according to different materials, such as TB6 needs 800-830 °C, and the heat preservation is 30-60 minutes; TB3 is 750-780°C, keep warm for 60-90 minutes, and clean the furnace to prevent oxidation before heating.
Roll Forming: Use a spring coiling machine with a mandrel to form at one time, and the diameter of the mandrel matches the design parameters of the spring (such as diameter 195mm for TB6 spring).
3. Heat Treatment And Post-Treatment
Quenching And Aging: The quenching medium is usually water, the aging temperature range is wide (450-650 °C), and the time is adjusted according to the alloy type (such as 8-10 hours for TB6 and 10-16 hours for TB3) to improve the tensile strength to 1300-1350MPa.
Surface Treatment: Shot peening strengthened (such as 0.15-0.25mm steel shot covering 100%) to enhance fatigue resistance and reduce stress relaxation.
Finishing: CNC spring grinding machine fine grinding end face, control free height (±2mm), flatness (≤0.5mm) and perpendicularity (≤0.5mm).
4. Quality Inspection
Performance tests include load tests, fatigue tests (e.g. more than 25,000 dynamic cycles), and ultrasonic flaw detection to ensure that there are no internal defects.
Specific Application Areas Of Titanium Springs
With its performance advantages, titanium springs are widely used in the following fields
1. Aerospace
Application Scenarios: Aircraft landing gear shock absorption system, engine valve spring, door mechanism.
Advantages: Light weight (30-40% lighter than steel springs), fatigue resistance (withstand millions of cyclic loads), such as Boeing 787 titanium springs up to 15%.
2. Automobile Industry
Application Scenarios: High-performance racing suspension systems, valve springs.
Benefits: Reduced weight (e.g. 12kg weight reduction by four support springs), improved fuel efficiency and handling, Timetal LCB titanium springs have been used in Ford racing cars.
3. Marine Engineering
Application Scenarios: Pressure-resistant shells of deep-sea submersibles, offshore platform equipment.
Advantages: Resistant to seawater corrosion, such as the manned capsule of the "Jiaolong" deep submersible is made of titanium alloy.
4. Medical Devices
Application Scenarios: Heart valve springs, orthopedic implant fixations.
Advantages: High biocompatibility, no surface treatment, avoid human rejection.
5. Precision Instruments And High-End Equipment
Application Scenarios: High-end watch hairsprings, precision measuring equipment springs.
Advantages: Low modulus of elasticity reduces magnetic field interference, ensuring accuracy and durability.
Certificate:Certificate:SGS,BV,MTC,ISO9001-2016
Place of Origin:Shaanxi Baoji China
Payment Terms：T/T，L/C
Brand:ZLDC
Product Number:ZLTI-Ring
