Description
Sharada Electro Chem. Undertakes subcontract Electro polishing of almost any stainless steel component. We have several units for subcontract Electro polishing, the largest containing 5,000 litres of electrolyte, which means that we have capacity for very large item.
Electro polishing, also referred to as electrochemical polishing, is an electrochemical process that removes material from a metallic work piece. It is used to polish, passivate, and deburr metal parts. It is often described as the reverse of electroplating. It differs from anodizing in that the purpose of anodizing is to grow a thick, protective oxide layer on the surface of a material (usually aluminium) rather than polish. Also known as electrolytic polishing in metallography, it may be used in lieu of abrasive fine polishing in micro-structural preparation
Electro polishing has many applications in the metal finishing industry because of its simplicity and it can be applied to objects of complex shape. Typical examples are electro-polished stainless-steel drums of washing machines and stainless-steel surgical devices. Electro polishing is also commonly applied to the preparation of thin metal samples for transmission electron microscopy because electro polishing does not cause mechanical deformation of surface layers usually observed when mechanical polishing is used. Anodic dissolution under electro polishing conditions deburrs metal objects due to increased current density on corners and burrs. Ultra-high vacuum (UHV) components are typically electro-polished in order to have a smoother surface for improved vacuum pressures, outgassing rates, and pumping speed.
