Comprehensive analysis of titanium forging rings!

1. Definition and characteristics

Titanium forging rings are ring-shaped parts made of titanium or titanium alloys through forging technology. Its core features include:

1. High strength and light weight: Titanium alloys have high specific strength, and forging rings can significantly reduce the weight of the structure while bearing high loads.

2. Corrosion resistance: The oxide film on the surface of titanium gives it excellent corrosion resistance to seawater, acidic media, chloride ions, etc.

3. High temperature resistance: Some titanium alloys can work stably for a long time below 400°C.

4. Process adaptability: The forging process can refine the grains, improve the density and mechanical properties of the material, and is suitable for complex working conditions.

2. Manufacturing process

1. Main process routes:

Free forging: Suitable for small batches or special-shaped forging rings, with high flexibility, but low material utilization. ASTM B381 Titanium Forged Ring / titanium u bolt / Gr3 Pure Titanium Sheet

Ring rolling: Seamless rings are formed by radial rolling, with high efficiency and good dimensional accuracy, suitable for mass production.

Die forging: Forging rings with high precision or complex structures, the mold cost is relatively high.

2. Key technical links:

Heating control: Titanium alloy forging needs to be strictly controlled below the β phase transformation point to avoid grain coarsening.

Deformation rate: It is necessary to balance plastic deformation and crack risk, and multi-fire forging is usually used.

Heat treatment: Solid solution + aging treatment can optimize the comprehensive mechanical properties.

3. Quality control indicators:

Chemical composition, microstructure, ultrasonic flaw detection of internal defects, dimensional tolerance.

III. Application fields

1. Aerospace: Engine compressor rings, rocket fuel tank flanges, etc., using their high temperature resistance and lightweight characteristics.

2. Chemical and energy: Reactor flanges, pipeline connection rings, resistant to strong acids, strong alkalis and high temperature and high pressure media.

3. Marine engineering: Deep-sea equipment structural parts, ship power system sealing rings, anti-seawater corrosion and scouring.

IV. Selection and use recommendations

Material selection:

General corrosion-resistant scenarios: industrial pure titanium.

High-strength and heat-resistant scenarios: TC4 or TC11.

Process matching: Ring rolling is preferred for high precision requirements, and die forging + machining is used for complex structures.

Surface treatment: Pickling and passivation improve corrosion resistance, and sandblasting or polishing meets special surface roughness requirements.