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Core Technology

One-Stop Service for Metal BPP Production

One-stop services for Metal BPP production are available, including engineering, materials, forming, cutting, laser welding, coating, and sealing.

Engineering Design
Material
Hydroforming
Cutting and
Laser Welding
Coating
Sealing

Unique Hydroforming Technology for Metal BPP

Static Hydroforming Technology

Research on forming processes compatible with pre-coated and post-coated materials, utilizing high-pressure liquid as the working medium for sheet metal forming—a low residual stress plastic forming method. Through high-precision mold design, it achieves metal plates that meet high-precision requirements such as surface roughness and warpage.

Compared to traditional mechanical stamping and soft mold stamping, hydroforming press offers advantages such as superior forming quality, higher forming limits, shorter mold manufacturing cycles, and lower costs.

In hydroforming, the uniform distribution of force applied by high-pressure liquid on thin sheet substrates enables optimal thickness distribution and reduces stress concentration common in traditional stamping processes. It allows for smaller forming radii, ensuring optimal forming quality and minimal material springback. Importantly, the high-pressure liquid medium also protects the material surface—a critical feature for forming pre-coated sheet substrates (whereas traditional stamping typically requires post-forming surface treatment).

  1. Single-step forming (compact stamping system) with low processing cost
  2. Single forming mold reduces tooling cost
  3. Reduced impact stress on metal substrate and mold extends tool life
  4. Avoids metal-on-metal impact, enabling stamping of pre-coated substrates
  5. Compatible with all metals, supporting a wide range of materials (stainless steel, titanium-based alloys, etc.)
  6. Forms different sections in a single stamping cycle for shorter production time
  7. Capable of creating intricate features unachievable by traditional stamping methods
  8. High repeatability (consistency) with flexible production parameter adjustment
  9. Gentle process suitable for thin sheet materials (50μm-1mm thickness range)

Advanced composite molding technology for Graphite BPP

The self-developed molded composite Graphite BPP utilizes a pre-mixed material of graphite and resin, achieving high-performance, low-cost mass production through a one-step thermosetting molding process. Compared to traditional flexible expanded graphite or machined graphite plates, its core advantages lie in:

Minimalist Craftsmanship

Molded in one step without complex post-processing, significantly improving production efficiency.

Cost Advantage

The high material utilization rate makes it suitable for large-scale manufacturing, significantly reducing the cost of fuel cell stacks.

Mass Production Advantage

Standardized production processes to effortlessly meet the scalable demands of automotive fuel cells and other fields.

Empowering the hydrogen energy industry with innovative materials and processes, we are committed to providing global customers with cost-effective and mass-production-ready bipolar plate solutions.