Titanium Copper Fusion Plate

III.  Product Construction and Basic Specifications

1. Structure and Materials: Typically features a dual-layer structure of titanium cladding over a copper substrate. Certain applications may utilize a triple-layer structure of titanium/copper/titanium. Common material combinations are well-defined: the titanium layer typically employs TA1 or TA2 industrial pure titanium, or TA10 for chloride corrosion resistance; the copper layer primarily uses T2 red copper with conductivity exceeding 99.9% or TUP deoxidized copper for hydrogen embrittlement resistance.

2. Product Specifications: Compliant with domestic and international standards such as GB13238-91 and ASTM B898. Thickness ranges: Titanium layer typically 1–10 mm, copper layer 2–50 mm. Dimensions: Maximum width 2000 mm, length 4000 mm, with custom sizing available for specific operational requirements.

IV.  Core Performance Advantages

1. Combined Corrosion Resistance and Unbiofouling: The titanium coating exhibits a corrosion rate below 0.01 mm/year in highly corrosive environments like seawater and wet chlorine gas, offering a service life 5–10 times longer than copper. Copper ions released from the copper layer effectively inhibit marine organism attachment, reducing fouling by 90% compared to pure titanium plates in practical applications—making it particularly suited for marine environments.

2. Balanced electrical and thermal conductivity: Its overall electrical conductivity reaches 60–80% of pure copper, far exceeding the mere 2% IACS of titanium alloys. Thermal conductivity can attain 54 W/m·K—three times that of titanium-steel composite plates—effortlessly meeting demands in high-heat-load scenarios like electrolytic cells and condensers.

3. High Strength with Lightweight Design: Interface shear bond strength exceeds 85 MPa, far surpassing the national standard requirement of 40 MPa, ensuring resilience under complex operating conditions. With a density only 60% that of pure copper and 40% lighter weight, it significantly reduces transportation and installation challenges and costs.

4. Outstanding Cost-Effectiveness: Initial procurement costs are reduced by 40-60% compared to pure titanium plates.

5. Extended Service Life: For example, titanium-copper composite electrodes used in chlor-alkali plants achieve a lifespan of up to 15 years, reducing annual maintenance costs by 60% and delivering clear long-term economic advantages.

V. Main Production Processes:

1. Its binding mechanism is atomic-level binding: The two metals, titanium and copper, undergo atomic diffusion or fusion bonding under high temperature and pressure, forming a transition layer with no distinct interface (metallurgical bonding). This emphasizes the bonding effect of “atomic-level fusion,” rather than structural or categorical integration.

2. Rolling Composite Method: Through hot rolling (at 800–900°C) or cold rolling (with 60–70% deformation rate), the surfaces of titanium and copper plates undergo plastic deformation, exposing fresh metal surfaces that bond together. This process is suitable for producing thin plates with total thickness ≤10mm. Cold rolling additionally prevents metal phase transformations, ensuring stable product performance.

3. Explosion-Rolling Composite: First creates a composite slab via explosion technology, then processes it to target thickness through hot or cold rolling as required. This method combines the high bonding strength of explosion bonding with the high dimensional accuracy of rolling, accommodating diverse specification demands.

VI. Typical Application Scenarios:

Because of titanium copper fusion plates have titanium's exceptional corrosion resistance with copper's superior electrical and thermal conductivity, while also offering lightweight properties and cost-effectiveness. These plates find extensive applications across multiple high-end industrial sectors.

1. Marine Engineering and Shipbuilding:

For example, commonly used for seawater cooling pipes, propeller shaft sleeves, and corrosion-resistant components in offshore platforms.

2. Power and New Energy:

For example, It is used for making bus-bars in coastal substations and submarine cable joints.

3. Chemical and Electrolytic Industries:

Such as Titanium-copper composite anodes in chlor-alkali production.

4. Precision Electronics Manufacturing:

For example, used for dissipation substrates for 5G base station RF chips.