Heat Exchanger
Processing Technology Of Titanium Heat Exchanger
Traditional Manufacturing Process
1. Material Treatment And Molding: The manufacturing of titanium alloy heat exchangers usually starts with cutting and edge processing of titanium plates or titanium foils, and surface impurities need to be removed through ultrasonic cleaning and drying. The molding process includes stamping or machining to form a microchannel structure, such as machining a boss on a titanium foil to construct a fluid channel.
2. Welding Technology
Diffusion Welding: Through vacuum diffusion welding technology, the TiZrCuNi intermediate layer film is coated on the surface of the titanium alloy microchannel foil, and then stacked and welded after step-by-step cooling and stress removal to form a high-precision microchannel core.
Explosion Welding: Used for titanium/steel composite pipe plates, combining the corrosion resistance of titanium and the strength of steel, and is suitable for large equipment such as nuclear reactor pipe plates.
Pressurized Forming: The titanium strips are injected into and expanded through compressed fluid, and combined with mold molding, which is suitable for lightweight scenarios such as fuel cells.
3.Emerging Technology Innovation
1. Microchannel Processing: Use vacuum coating and diffusion welding to avoid microchannel blockage caused by traditional brazing and improve heat exchange efficiency.
2. Full welding design: Seamless connection is achieved through laser or electron beam welding, improving sealing and pressure resistance, and reducing leakage risks.
Comparison Of Titanium Heat Exchanger With Other Materials
Titanium Heat Exchanger
1. Corrosion Resistance: Extremely strong, can resist corrosion of strong acids, strong alkalis, seawater, etc., and has strong self-healing ability of the oxide film.
2. Heat Conductivity: High (thermal conductivity is about 21.9 W/m·K), but lower than aluminum (237 W/m·K).
3. Weight And Strength: Lightweight (density 4.5 g/cm³), high strength, suitable for lightweight needs.
4. Applicable Scenarios: Chemical industry, nuclear power, seawater desalination, aerospace, medical and other fields.
Stainless Steel Heat Exchanger
1. Corrosion Resistance: Generally, 316L stainless steel has good resistant to chloride ion corrosion, but it may still rust after long-term exposure.
2. Heat Conductivity: Low (stainless steel about 16 W/m·K), low heat transfer efficiency.
3. Weight And Strength: Weight (density 7.9 g/cm³), medium strength.
4. Applicable Scenarios: Non-extreme environments such as conventional industrial heat exchange and food processing.
Fluoroplastic Heat Exchanger:
1. Corrosion Resistance: Excellent, suitable for extreme environments such as strong acids and electroplating solutions.
2. Heat Conductivity: Low (fluoroplastics about 0.25 W/m·K), mainly used in corrosion resistance scenarios.
3. Weight And Strength: Light but low in strength, susceptible to mechanical damage.
4. Applicable Scenarios: Electroplating, electrochemical plating, medicine and other strong corrosion environments.
Aluminum Alloy Heat Exchanger:
1. Corrosion Resistance: Poor,susceptible to acid and alkali corrosion.
2. Heat Conductivity: High (aluminum 237 W/m·K), best heat transfer efficiency.
3. Weight And Strength: Light (2.7 g/cm³), low strength.
4. Applicable Scenarios: Conventional heat exchange scenarios such as automobile heat dissipation and electronic equipment.
The Core Advantages And Limitations Of Titanium Heat Exchangers
Extreme Environmental Adaptability: Corrosion resistance, high temperature resistance (can be above 260℃), suitable for harsh scenarios such as nuclear reactors and deep-sea equipment.
Long Life And Low Maintenance: The self-healing characteristics of oxide films extend service life and reduce replacement frequency.
Lightweight Design: Significantly reduces equipment weight and improves energy efficiency in the aerospace field.
Inadequate Thermal Conductivity: Compared with aluminum, titanium has lower thermal conductivity efficiency, which may lead to local temperature unevenness.
High Processing Costs: Vacuum diffusion welding, microchannel precision machining and other processes push up manufacturing costs.
Low Hardness: Pure titanium products are prone to scratches and need to be alloyed (such as Ti-6Al-4V).
Certificate:Certificate:SGS,BV,MTC,ISO9001-2016
Place of Origin:Shaanxi Baoji China
Payment Terms：T/T，L/C
Brand:ZLDC
