High Precision Half Etching Stainless Steel PCHE Plates for Fuel Cell Stack

High Precision Half Etching Stainless Steel PCHE Plates for Fuel Cell Stack

The Printed Circuit Heat Exchanger (PCHE) utilizes diffusion-bonded corrosion-resistant plates with microchannel circuits to achieve high thermal efficiency and compactness. Designed for extreme pressures and temperatures, it serves oil/gas, energy, and chemical industries, offering durability and space-saving advantages through its welded, plate-type architecture.

Specifications of Half Etching Printed Circuit Heat Exchanger Plates

Advantages of Etching in PCHE Plates Manufacturing

1. Precision Microchannel Fabrication: Enables ultra-fine, complex flow paths (<0.5mm) for maximized heat transfer efficiency and uniform fluid distribution.
2. Design Flexibility: Supports customizable channel geometries (zigzag, wavy) tailored to thermal/fluid dynamics requirements.
3. Material Integrity Preservation: Stress-free etching avoids mechanical deformation, maintaining plate strength for high-pressure operations (up to 600 bar).
4. Scalability & Consistency: Photochemical processes ensure repeatable, large-scale production of corrosion-resistant plates (e.g., stainless steel, alloys)

The production process of chemically etching PCHE Plates

1) Material selection (stainless steel/titanium);

2) Surface cleaning;

3) Photoresist coating and UV masking to define flow channel patterns;

4) Exposing and Developing;

5) Chemical etching to dissolve exposed areas;

6) Post-processing (resist removal, residue neutralization);

7) Quality inspection.

Precise control of etching parameters (time, temperature, concentration) ensures uniform channel geometry for optimized gas distribution, conductivity, and corrosion resistance while maintaining structural integrity. This method supports scalable, cost-efficient mass production. 

How to etching custom PCHE Plates?

1. Please send us your design.
We accept the following file formats:DWG, DXF, PDF, Step, Gerber, IGES, CorelDraw and AI.

2. Samples making lead time:5-7days

3. Express:By DHL, FedEx, TNT, Air, Sea.