nadcap certified COATING SOLUTIONS FOR VARIOUS INDUSTRIES
LEADER IN AEROSPACE
HARD CHROME PLATING
Hard chrome plating, also known as industrial chrome plating or engineered chrome plating, is a process used in aerospace and other industries to enhance the surface properties of metal parts. Overview of Hard Chrome application in the Aerospace Sector:
Hard Chrome Plating: A technique involving the electroplating of a layer of chromium onto a metal object. The layer is typically thick and designed to improve wear resistance, reduce friction, and prevent corrosion.
Process Steps:
Surface Preparation: The metal surface is cleaned and prepared to ensure proper adhesion of the chrome layer.
Electroplating: The part is submerged in a chromic acid solution, and an electric current is applied, causing chromium to deposit onto the surface.
Finishing: The plated part is polished to achieve the desired surface finish.
AEROSPACE PLATING APPLICATIONS:
Engine Parts: Components like pistons, cylinders, and turbine blades are plated to improve performance and longevity.
Actuators and Hydraulic Systems: Chrome plating helps in reducing friction and wear in moving parts, thereby increasing reliability.
Landing Gear Components: Hard Chrome Plating is used on Landing Gear to Enhance Durability and Resistance to Wear and Corrosion
Benefits:
Wear Resistance: Hard chrome provides excellent resistance to abrasion and wear, which is crucial for parts subjected to high stress and friction.
Corrosion Protection: It offers good protection against corrosion, extending the lifespan of aerospace components.
Reduced Friction: The plating reduces friction, improving the efficiency and performance of moving parts.
Enhanced Hardness: The surface hardness of the plated parts is significantly increased, contributing to better durability.
Electro-less
Nickel Plating Solutions
Electroless nickel plating does not require an electric current. Instead, it uses a chemical reduction process to deposit nickel onto the substrate.
Preparation:
Cleaning: Similar to electroplating, the substrate is thoroughly cleaned to remove contaminants.
Activation:
Sensitizing and Activating: The substrate may undergo sensitizing (with a solution like stannous chloride) and activating (with a solution like palladium chloride) steps to promote the deposition of nickel.
Plating:
Plating Bath: The substrate is immersed in a plating bath containing nickel salts (such as nickel sulfate or nickel chloride), a reducing agent (like sodium hypophosphite), and other additives to control pH and deposition rate.
Chemical Reduction: The reducing agent chemically reduces the nickel ions to metallic nickel, which deposits onto the substrate without the need for an electric current.
Rinsing:
The substrate is rinsed to remove any residual plating solution.
Grinding and polishing services
GRINDING
Purpose: Grinding is a machining process that uses an abrasive wheel as the cutting tool to remove material from a workpiece. It is used to achieve high precision, smooth surfaces, and specific shapes.
Polishing
Purpose: Polishing is the process of refining the surface of a workpiece to achieve a smooth, shiny, and sometimes mirror-like finish. It is often used to enhance the appearance and performance of the material.
