Why hard chrome plating is done?
Chrome plating increases the hardness, durability, and corrosion resistance of a surface, while also creating a shiny and smooth surface that is easier to clean. The hardness and durability of a chromium metal surface finish means your parts will last longer even under severe mechanical contact and wear situations.
What is hard chrome plating used on?
When used on moving parts, hard chrome plating reduces friction and heat between equipment components. Lower friction and reduced operating temperatures can prevent parts from seizing and extend the lifespan of essential equipment components like pumps and hydraulic cylinders.
What is the process of chrome plating?
The chrome plating process is a method of applying a thin layer of chromium onto a substrate (metal or alloy) through an electroplating procedure. During the flow of electricity between the two electrodes, chromium atoms are deposited in a layer on the electrode to be plated.
How do you remove chrome plating?
Proceed as below:
- Mix 1/3 part hydrochloric acid to 1 part water in a vat used for chemical mixtures (like a heavy-duty plastic bucket, etc.) to produce a 30% acid solution.
- Submerge the chrome-plated object in the solution until chrome strips off.
- Wash the object thoroughly in soap and water, and rinse before drying.
Can you plate over chrome?
hard chrome plating on zinc substrate is possible with all properties which hard chrome has to offer (brightness, hardness, microcracks etc). You cannot plate silver on chromium. 2. Your parts are coated with nickel and chromium.
What are the pros and cons of chrome plating?
You can wash and polish it without worrying about scratching it up. Plus, as the layer of chrome provides a protective barrier for the underlying nickel, rust and corrosion should not be an issue. Cons: Chrome plating is expensive as hell.
What is the purpose of hard chrome plating?
Hard Chrome Plating FAQ. What is hard chrome plating? Hard chrome plating is a process in which a layer of chromium is applied to a surface to improve corrosion and abrasion resistance, reduce friction, and extend the life of parts used in extreme wear conditions.
How big is the deposit in chrome plating?
The total deposit including the copper and nickel under-layers is typically 0.0005″ thick. The Dura catalysts used in decorative chrome plating promote deposition at higher speeds, greatly increase the throwing power of the deposit and activate the sometimes passive nickel under-layer.
What kind of plating is used on stainless steel?
Chrome plating is an electrolytic process that can be applied to regular steel, stainless steel, aluminum, and other materials. This report details the application of chrome plating to various steel surfaces. 3.0 Types of Chrome Plating There are two basic types of chrome plating: hard chrome plating and thin dense chrome plating.
What should the RMS be for chrome plating?
If a softer surface must be used, it should be plated to Specification SAE-AMS-QQ-C-320, Class 2E. With conventional hard chrome plating, a rough surface from 16 to 31 RMS (from 0.406 to 0.787 µm Ra) is required prior to plating.
What are the advantages of hard chrome plating?
- including the oil industry.
- Reduced Friction Another essential quality of industrial chromium is its low coefficient of friction.
- Versatile Application
What are the best materials for chrome plating?
There are a few base metals that can work for chrome plating projects, including steel, aluminum, cast iron, bronze, and brass .
How does hard chrome plating work?
Hard Chrome Plating is an electrolytic process utilizing a chromic acid based electrolyte. The part is made the cathode and, with the passage of a DC current via lead anodes, chromium metal builds on the component surface.
Is baking required after hard chrome plating?
The chrome plating itself does not require baking, but the substrate may. What happens is that chrome plating releases a great deal of atomic hydrogen, so if the substrate metal is subject to hydrogen embrittlement (that is, if it’s hardened steel), then it requires immediate baking for embrittlement relief.