Symmetrical Pulse Rectifier Introduction

The 50A 18V symmetrical pulse rectifier is an advanced power supply for pulse reverse electroplating. This symmetrical pulse rectifier delivers precisely controlled positive and negative current pulses. It is specifically designed for depositing alloy coatings, improving deposit properties, and managing internal stress in plated layers.

Product Parameters

Input Power 3-Phase 380VAC, 50/60Hz
DC Output ±18V / 0-50A Adjustable
Pulse Mode Symmetrical Bipolar (PR - Periodic Reverse)
Pulse Frequency 0.1 Hz - 1000 Hz
Cooling Air Cooling
Protections Polarity Reversal Protection, OVP, OCP, OTP

Key Features of the Symmetrical Pulse Rectifier

• True Bipolar Output: This symmetrical pulse rectifier generates both positive (anodic) and negative (cathodic) current pulses with independent control. This enables true periodic reverse (PR) plating cycles.
• Alloy Composition Control: By adjusting the pulse ratio and timing, the composition of alloy deposits (e.g., Zinc-Nickel) can be precisely tuned. Consequently, corrosion resistance and mechanical properties are optimized.
• Internal Stress Management: The periodic anodic pulse dissolves fine crystalline defects. Therefore, it significantly reduces internal stress and hydrogen embrittlement in thick deposits.
• Superior Deposit Quality: Symmetrical pulsing refines grain structure and improves leveling. This results in brighter, smoother, and more uniform coatings.
• Versatile Process Platform: The system supports a wide range of advanced plating processes. Moreover, it stores multiple recipes for different applications.

Applications & Advantages

This 50A 18V symmetrical pulse rectifier is essential for advanced plating technologies. First, it is the standard for high-corrosion-resistant Zinc-Nickel alloy plating for automotive and aerospace fasteners. Second, it produces bright, ductile acid copper deposits for electronics and decorative applications. Third, it is used for high-performance silver and gold plating where low porosity is critical.

The symmetrical pulse rectifier provides transformative process benefits. Primarily, it enables the production of alloy coatings with properties unattainable by DC plating. Additionally, it improves throwing power and deposit uniformity in complex geometries. Furthermore, it reduces waste and rework by minimizing coating defects like burning and nodular growth. Ultimately, it offers a high degree of process control, allowing for the development of next-generation plating solutions.