Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of corrosion resistant busbar in China. If you're going to buy customized corrosion resistant busbar made in China, welcome to get more information from our factory. For price consultation, contact us.
Corrosion Resistant Busbar
● Product Aliases: Titanium copper busbar, titanium-clad copper conductive busbar, a high-current composite conductive carrier for electrochemical tanks, which simultaneously realizes the two functions of current shunting and conduction and electrode beam load-bearing.
● Composite Structure: inner layer of T2/C11000 high-purity oxygen-free copper core, outer layer of TA2 Gr2 industrial pure titanium, combining the advantages of copper's ultra-high conductivity and titanium's resistance to chloride ion/strong acid corrosion.
● Composite Process: explosive bonding + vacuum hot rolling diffusion integrated molding, atomic-level metallurgical bonding, interfacial shear strength ≥135MPa, no delamination during long-term electrical thermal expansion and contraction, and stable contact resistance without increase.
● Energy Saving And Consumption Reduction: Copper core conductivity ≥99% IACS, compared with pure titanium conductive busbars, the cell voltage is reduced by 18%-32% for the same current carrying capacity, and 24-hour continuous electrolysis significantly reduces electricity and operating costs.
● Fully Sealed Anti-Corrosion Design: The immersion area inside the tank is completely covered by a titanium layer at 360°, with only bare copper conductive wiring sections reserved above the liquid surface, completely isolating the electrolyte, preventing copper ion precipitation and contamination of the tank solution, and not affecting the purity of the electroplated finished product.
● Brand: RHHT i.
● Place Of Origin: Baoji, Shaanxi Province, China's Titanium Valley.
Product Introduction
Titanium copper busbars (titanium-clad copper conductive busbars) are core high-current conductive components in various electrolytic cells and fully automated electroplating production lines, undertaking two core functions: overall current distribution and load-bearing support for the electrode beams. The product is manufactured using a composite molding process combining explosive welding and vacuum hot rolling diffusion metallurgy. It features an internal high-purity T2 oxygen-free copper core and an external full-coverage TA2 industrial pure titanium protective layer. The complete titanium layer in the entire immersion area within the electrolytic cell isolates it from corrosive media such as sulfuric acid, saturated brine, fluoroboric acid, and chlorides, preventing copper core corrosion and impurity precipitation that could contaminate the electrolyte. Compared to the industry pain points of rapid corrosion and wear of traditional pure copper busbars and high resistance and energy consumption of pure titanium busbars, titanium-copper busbars maintain a constant interface resistance under continuous energization conditions, effectively reducing the overall energy consumption of the electrolysis system, significantly extending the busbar replacement cycle, and ensuring uniform and stable current density within the electrolytic cell. It is widely used in the entire electrochemical industry, including ion-exchange membrane chlor-alkali processes, 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".
● Substrate standards: ASTM B265 Gr2 industrial pure titanium, ASTM B152 C11000 copper rolled profiles, ASTM B898 bimetallic composite sheet standards.
● 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: Strict control and compliance with EU RoHS 2.0 directives, including the content of heavy metals lead, cadmium, and mercury.
● Prohibited operating conditions: It cannot be used in high-concentration hydrofluoric acid or high-temperature molten fluoride salt systems.
Standard Materials And Structural Parameters
|
Parameter Categories |
Optional Specifications |
Detailed Description |
|
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 Gr2 Industrial Pure Titanium |
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. |
|
Mainstream cross-sectional shapes |
Flat rack, square rack, irregular shaped bent rack |
Flat titanium copper busbars are a common type for main busbars in electrolytic cells, featuring a large heat dissipation area and higher current carrying capacity. |
|
Size range |
Width 10–300mm, thickness 3–50mm, total length 500–10000mm |
The extra-long tank supports original factory segmented prefabrication and splicing, and is equipped with titanium-sealed transition joints. |
|
Conductive terminal structure |
Milling bare copper at both ends, partially exposing conductive areas, and tin-plated copper contact surfaces. |
Custom-made 60–200mm bare copper sections according to the copper busbar connection dimensions of the rectifier cabinet. |
|
Deep processing options |
Through holes/counterhead holes, right-angle bends, titanium lugs argon arc welding, end face milling |
Integrated precision machining ensures no secondary machining is required from the customer. |
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Surface condition |
Pickling and passivation, machining to matte finish, mirror polishing |
Polished surfaces reduce the oxidation rate of conductive contact surfaces, thus reducing heat loss during contact. |
Product Features and Applications
Product Advantages
High current, low loss conductivity, and significant energy saving in long-term production: 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 operating 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, and its corrosion resistance and service life are more than 10 times that of pure copper busbars. No copper ion leaching occurs throughout the process, avoiding a decrease in the purity of the electrolytic metal, pinhole defects in the PCB board plating, and reducing the frequency of electrolyte replacement.
The flat cross-section has superior mechanical properties and is suitable for long-distance tank top installation: the rectangular flat titanium copper busbar has a much better bending and creep resistance than the round bar. It is not easy to sag and deform when erected on the top of the electrolytic cell with a long span. The current density of the entire busbar is uniform, eliminating the problems of local overheating and uneven coating thickness of the electrode plate.
Integrated factory processing and delivery reduces customers' overall costs: We have our own CNC drilling, bending, and titanium argon arc welding precision machining workshop, which can complete the whole process of drilling, bending, welding lugs, and milling bare copper ends according to customer drawings. The finished products can be directly assembled upon arrival, saving customers the investment in equipment and labor.
Metallurgical composite interface never delaminates, reducing equipment downtime and maintenance: The explosion + vacuum hot rolling diffusion composite process achieves atomic fusion bonding of titanium and copper metals, which is different from ordinary mechanical sleeve coating; under long-term alternating hot and cold conditions 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: Anode and cathode main conductive titanium-copper busbars of ion-exchange membrane electrolyzers, and shunt conductive busbars for saturated brine electrolysis.
Electrolytic copper foil manufacturing: foil production machine, surface treatment equipment, titanium-copper conductive beam, high-current conductive busbar on the tank side.
PCB circuit board electroplating: VCP vertical continuous copper, tin, and nickel plating production line main conductive flat bar and crane conductive connecting beam.
Hydrometallurgy: Electrowinning and electrolytic refining cells for copper, nickel, cobalt, and zinc metals; conductive support titanium-copper strips for anode and cathode.
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
Ultrasonic full-coverage scanning of the entire length, effective bonding area ≥98%, no continuous unbonded 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: What are the main reasons for localized overheating after long-term use of titanium-copper busbars?
A1: There are three main causes of failure: First, loose bolts on the bare copper conductive terminals cause oxidation of the contact surface, increasing contact resistance; second, damage to the titanium layer allows electrolyte to seep in and corrode the copper core, causing localized delamination and a surge in resistance at the interface; third, the titanium-copper busbar has an undersized cross-section, leading to overload. For routine maintenance, it is recommended to tighten the wiring bolts monthly and perform a full-line ultrasonic flaw detection annually to check for titanium layer damage.
Q2: Which electrolyte conditions are suitable for titanium copper busbars and zirconium copper busbars respectively?
A2: For conventional sulfuric acid, sodium chloride, and fluoroboric acid electroplating/electrolysis systems, titanium copper busbars are preferred due to their higher cost-effectiveness. For applications involving high concentrations of fluoride ions and high-temperature, strongly acidic electrolytes, zirconium copper busbars are preferred, as zirconium exhibits superior resistance to fluoride corrosion compared to industrial pure titanium. The two materials should not be mixed, as this will create a potential difference that accelerates metal corrosion and failure.
Q3: How should the thickness of the titanium layer on the titanium-copper busbar be selected in a PCB electroplating production line?
A3: PCB electroplating bath solutions mostly contain fluoroboric acid and chloride ions, with moderate corrosion strength; for intermittent production of 8 hours per day, a 1.0–1.5mm titanium layer is recommended; for 24-hour uninterrupted fully automatic VCP electroplating lines, a 2.0–2.5mm thickened titanium layer is recommended to effectively extend the service life of the busbar and reduce the frequency of production line downtime for maintenance.
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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