Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of titanium copper composite flat bar in China. If you're going to buy customized titanium copper composite flat bar made in China, welcome to get more information from our factory. For price consultation, contact us.
Titanium Copper Composite Flat Bar
● Functional Positioning: High-current conductive core busbar for chlor-alkali electrolysis, electrolytic copper foil, PCB electroplating, and wet metallurgical tanks, while also serving the dual functions of lateral conductive current distribution and anode/cathode beam support.
● Composite Structure: inner layer T2/C11000 high-purity oxygen-free copper core + outer layer TA2 industrial pure titanium full coating, combining the dual core advantages of copper's ultra-high conductivity and titanium's resistance to acid, alkali and chloride ion corrosion.
● Composite Process: explosive bonding + vacuum hot rolling diffusion metallurgy integrated forming, atomic-level interface bonding, interface shear strength ≥135MPa, no delamination and no increase in interface resistance during long-term energization.
● Conductivity And Energy Saving Advantages: Copper core conductivity ≥99% IACS, cell voltage is reduced by 18%-32% under the same current carrying capacity, and the annual energy saving effect is significant in continuous electrolysis conditions.
● Fully Sealed Anti-Corrosion Design: The area immersed in the electrolyte is completely covered by a titanium layer at 360°, with only the copper material exposed at the wiring terminals, preventing electrolyte from seeping in and corroding the copper core, and preventing copper ions from precipitating and contaminating the bath solution.
● Brand: RHHT i.
● Place Of Origin: Baoji, Shaanxi Province, China's Titanium Valley.
Product Introduction
Titanium copper composite flat busbars, also known as titanium-clad copper conductive flat busbars, are high-current conductive core busbars specifically designed for ion-exchange membrane chlor-alkali electrolytic cells, electrolytic copper foil production lines, fully automated PCB electroplating equipment, and hydrometallurgical electrowinning cells. They integrate two core functions: lateral current shunt conduction and electrode beam load-bearing support. The product is integrally formed using an explosive welding + vacuum hot rolling diffusion metallurgical composite process. The internal high-purity T2 copper core is fully encapsulated with a TA2 industrial pure titanium protective layer. The complete titanium layer in the immersion area isolates the copper core from corrosive media such as sulfuric acid, saturated brine, fluoroboric acid, and chlorine-containing electrolytes, preventing copper core corrosion and impurity precipitation from contaminating the electrolyte. Compared to the industry pain points of traditional pure copper flat busbars (rapid corrosion and wear) and pure titanium conductive busbars (high resistance and high energy consumption), titanium-copper composite flat busbars maintain a constant interface resistance under 24-hour continuous energization, effectively reducing overall electrolysis energy consumption, significantly extending the busbar replacement cycle, and ensuring uniform and stable current density within the electrolytic cell. It is widely used in electrochemical fields such as ion-exchange membrane chlor-alkali, electrolytic copper foil, PCB vertical continuous electroplating, copper-nickel-cobalt wet electrowinning, and electrolytic wastewater treatment.
Product Parameter
Implement International Standards System
● Product standards: GB/T 12769-2025 "Titanium-Copper Composite Rods", YS/T 1090-2024 "Wet-Layer Electrowinning Conductive Composite Materials".
● Base material standards: ASTM B265 Gr2 industrial pure titanium, ASTM B152 C11000 copper rolled profile standard.
● Testing and acceptance standards: GB/T 5121 Chemical analysis of copper materials, GB/T 4698 Chemical analysis of titanium materials, and fully automated ultrasonic interface flaw detection specifications.
● Environmental compliance standards: Compliant with EU RoHS 2.0 directive, with strict control and compliance of heavy metal content in lead, cadmium, and mercury.
● Prohibited operating conditions: Not suitable for use in high-concentration hydrofluoric acid, high-temperature molten salt, or strong fluoride corrosive systems.
Standard Materials And Structural Parameters
|
Parameter Categories |
Optional Specifications |
Illustrate |
|
Inner core conductive substrate |
T2 High Purity Copper / ASTM C11000 Oxygen-Free Copper |
Conductivity ≥99% IACS, low voltage drop and low heat generation during high current transmission. |
|
Outer anti-corrosion coating |
TA2 Industrial Pure Titanium (Gr2) |
General-purpose electrolyte with corrosion resistance; TA1 titanium layer can be customized for ultra-high corrosion conditions. |
|
Titanium coating thickness |
0.6mm – 5.0mm |
For intermittent electroplating, use a thickness of 0.8–1.5 mm; for 24-hour continuous chlor-alkali/copper foil electrolysis, use a thickness of 2–5 mm with an added titanium layer. |
|
Flat bar cross-sectional dimensions |
Width 10–300mm, thickness 3–50mm |
Commonly used sizes are 40×15, 60×20, 80×25, 120×30, and 180×40mm. |
|
Single branch total length range |
500mm – 10000mm |
The extra-long tank supports segmented splicing and is equipped with titanium sealing joints. |
|
Conductive terminal structure |
Milled ends of bare copper, partially exposed copper conductive areas, and tin-plated copper contact surfaces |
Custom-made bare copper sections, 60–200mm in length, according to rectifier busbar connection dimensions. |
|
Deep processing options |
Through hole/counterhead hole machining, right-angle bending, titanium lug argon arc welding, end face milling |
It can be directly connected and used with anode plates, cathode targets, and rectifier cabinets. |
|
Surface condition of the supplied goods |
Pickling and passivation, machining to matte finish, mirror polishing |
Polished surfaces reduce the oxidation rate of conductive contact surfaces, thus reducing heat loss. |
Product Features and Applications
Product Advantages
High current, low loss conductivity, and significant energy saving in long-term operation: High-purity oxygen-free copper core with atomic-level tight composite interface, with no additional contact resistance loss; saves more than 20% of electricity compared to pure titanium busbars, suitable for chlor-alkali and copper foil electrolysis with kiloampere-level ultra-high current conditions, and significantly reduces factory electricity costs in the long term.
Fully encapsulated titanium layer for long-lasting corrosion protection and prevention of bath solution contamination: The immersion area inside the bath is completely sealed with titanium material at 360°. Titanium quickly forms a stable passivation film in acidic and chlorine-containing electrolytes, with corrosion resistance more than 10 times that of pure copper flat bars; no copper ion leaching occurs throughout the process, avoiding a decrease in the purity of electrolyzed products, pinhole defects in the PCB board plating, and reducing the frequency of electrolyte replacement.
The flat cross-section has a stable mechanical structure and is suitable for long-span installation: The rectangular flat cross-section has better bending and creep resistance than round bars and square bars. It is not easy to sag and deform when erected over a long distance at the top of the electrolytic cell, ensuring uniform current density of the entire busbar and avoiding problems such as local overheating and uneven coating thickness of the electrode plates.
Integrated deep processing delivery reduces customer processing costs: The factory has built-in CNC drilling, bending, and titanium argon arc welding processing workshops, which can complete a full set of precision machining such as drilling, bending, welding lugs, and milling bare copper ends according to drawings. Finished products can be directly assembled upon arrival, and customers do not need additional machining equipment and manpower.
Metallurgical composite interface never delaminates, and equipment has a long maintenance cycle: The explosion + hot rolling diffusion composite process achieves atomic fusion bonding of titanium and copper metals, which is different from mechanical sleeve coating; under long-term hot and cold alternation and high current thermal expansion and contraction conditions, there will be no delamination, water seepage, or resistance surge faults, and no need for overall replacement for 5-8 years.
Application Areas
Chlor-alkali chemical industry: main conductive flat busbars for anode and cathode of ion-exchange membrane electrolyzers, and conductive busbars for saturated brine electrolysis.
Electrolytic copper foil manufacturing: foil production machine, surface treatment machine, titanium-copper conductive crossbeam, tank-side high-current conductive busbar.
PCB circuit board electroplating: VCP vertical continuous copper, tin, and nickel plating production line main conductive flat bar and crane conductive connecting beam.
Hydrometallurgy: Conductive support flat bars for the anode and cathode of electrowinning and electrolytic refining cells for copper, nickel, cobalt, and zinc metals.
New energy hydrogen production: Alkaline water electrolyzers, corrosion-resistant high-current conductive busbars for electrolytic oxidation equipment.
Environmental water treatment: Electrolytic catalytic oxidation, heavy metal recovery electrolysis equipment anode conductive components.
Production Details
Composite Interface
Full-length ultrasonic scanning shows an effective bonding area of ≥98%, with no continuous unbonded areas or bubble delamination defects.
01
Conductive Terminals
Copper contact surface roughness Ra≤1.6μm, flatness≤0.1mm, bolt connection without heating or arcing.
02
Welding Process
Pure argon arc welding for sealing, 100% penetrant testing of weld seams to prevent electrolyte from seeping into the copper core channel.
03
Geometric Tolerances
The straightness of the entire flat bar is ≤1.0mm/m, and the bending angle and hole size tolerances strictly conform to the customer's drawings.
04
Surface Protection
The titanium layer is passivated throughout, providing stable resistance to electrolyte corrosion and preventing peeling or flaking even after long-term use.
05
Product Supporting Documents
Authoritative International Qualification Certificates
Original material certificates for titanium and copper, special test reports on the interface strength, conductivity and corrosion resistance of titanium-copper composite, and original material certificates of EN 10204 3.1 for each batch.
ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification.
Third-party SGS sampling inspection report on chemical composition, mechanical properties, and corrosion resistance.
RoHS environmental compliance test report, meeting the environmental control standards of the chemical, electronic electroplating, and new energy industries.
thoughtful service
Packaging Standards (For Export By Sea)
Each flat strip is fully wrapped in a PE protective film, and the exposed copper conductive ends are fitted with hard plastic protective sleeves. Drilled and bent corners are isolated with pearl cotton to prevent bumps and scratches.
The batches are packed into fumigated solid wood export crates, with multiple points of internal wooden support to prevent bending, shifting, and collisions during long and flat transport.
The wooden crates are clearly labeled with product specifications, quantity, gross weight, moisture-proof, hoisting, and pressure-proof markings, making them suitable for sea, land, and China-Europe freight train transportation.
Professional Consultation Q&A
Q1: How to differentiate between titanium-copper composite flat bars and round titanium-clad copper bars when selecting models?
A1: Flat bars are suitable for horizontal main busbars at the top of electrolytic cells and high current shunt scenarios. The flat cross-section has a larger heat dissipation area, higher current carrying capacity, and is less prone to deformation due to its long span. Round bars are mostly used for single anode/cathode suspension support, supporting single-point plates, and have low shunt requirements. The two cannot be substituted for each other.
Q2: Will the exposed copper ends of the flat strip corrode when exposed to salt water?
A2: FNo. The bare copper conductive terminals are designed to be above the electrolyte surface in the electrolytic cell, and are only connected to the copper busbar of the rectifier cabinet by bolts. They are not immersed in the electrolyte throughout the process; all immersion parts inside the cell are completely sealed with a titanium layer to completely isolate them from corrosive media.
Q3: What causes localized heating after long-term use of flat slats, and how can it be resolved?
A3: There are three main categories: 1. Loose bare copper terminal bolts, leading to oxidation of the contact surface; 2. Damaged titanium layer with electrolyte seepage, causing localized delamination and a surge in resistance at the interface; 3. Undersized cross-section of the flat connector, resulting in overload. Regularly tighten the wiring bolts and conduct a comprehensive visual inspection annually to check for titanium layer damage.
Latest company news
The dedicated explosive composite production line for titanium-copper composite rods has completed its iterative upgrade, significantly improving its large-scale customized delivery capabilities.
Leveraging the industrial resources of Baoji's "China Titanium Valley," the company has completed the transformation and upgrading of its dedicated explosive welding and vacuum hot rolling integrated production line for titanium-copper composite rods. It has added high-precision round bar precision rolling and CNC deep processing equipment, enabling mass production of TA2 titanium-clad T2 copper composite round and square rods with diameters ranging from 10 to 200 mm. The entire line utilizes digital interface flaw detection equipment, achieving 100% self-inspection of the interface bonding strength for each titanium-copper composite rod. Strictly adhering to GB/T 12769-2025 and ASTM B898 international composite metal standards, the line effectively solves industry pain points such as interface delamination and uneven titanium layer thickness in traditional composite rods. Standard order delivery cycles have been shortened by 30%, ensuring a stable supply of large-volume conductive substrate orders for the electrolytic copper foil, PCB electroplating, and hydrometallurgical industries.
Integrated deep processing service for titanium-copper composite rods has been launched, providing a one-stop solution for customized electrolytic conductive components.
To meet the precision machining needs of domestic and international customers for titanium-copper composite rods, the company has established a complete deep-processing workshop for titanium-copper rods, capable of independently completing a full range of processes including end milling of bare copper, precision drilling, bending, titanium argon arc sealing welding, and internal and external thread machining. Leveraging the high conductivity and chloride ion corrosion resistance of titanium-copper composite rods, the company has developed finished rods specifically for cathode suspension rods, anode conductive rods, and conductive targets, which can be directly assembled into electrolytic cells without secondary machining by customers. For highly corrosive conditions such as 24-hour continuous electrolysis and high-temperature saturated brine, customized titanium coating thickness solutions ranging from 0.6 to 5.0 mm can be provided, offering integrated material and precision machining solutions for chlor-alkali, metal electrowinning, and circuit board electroplating companies.
A well-established global supply chain for titanium-copper composite rods, with diversified logistics and standardized quality inspection ensuring the delivery of overseas orders.
The company has fully secured its own import and export qualifications, and its titanium-copper composite rods have obtained ISO9001 and RoHS environmental certifications. Each batch of products comes with an original EN 10204 3.1 material quality certificate and supports third-party sampling inspections by SGS and BV. A global distribution network covering Southeast Asia, Europe, the Middle East, and North America has been established, offering various logistics solutions including sea freight, air freight, and China-Europe freight train. Exported products are packaged in fumigated wooden crates with pearl cotton for protection, preventing damage to the titanium coating during long-distance transportation. Professional materials engineers provide 24/7 online technical support, offering free titanium-copper composite rod specification selection and energy consumption optimization solutions based on customer electrolysis conditions, continuously establishing itself as a stable supplier of corrosion-resistant and conductive composite materials in the global electrochemical industry.
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