Chromating

 

Aluminum alloy chrome plating can have a very good appearance and is a surface treatment method to increase the hardness of aluminum alloy castings. It can prevent corrosion, anti-wear, and improve the mechanical strength of aluminum alloy casting, especially beautiful and attractive appearance. The appearance of the aluminum alloy or zinc alloy can be chrome-plated, which make castings have a very good surface.

Chrome plating is often used in bright decorative parts on home appliances, electronics and other products, bathroom accessories, other decorative casting aluminum alloy parts, etc.

Bathroom Hardware Accessory in Die-Casting with Chrome aluminum alloy oil box cover  aluminum alloy low pressure casting furniture part

 

The chrome plating not only serves as a decorative effect, but also has a bright outer appearance and can increase the hardness and wear resistance of metal parts. Chrome plating is often used in bright decorative parts, tools, faucets, etc. on home appliances, electronics and other products.There are two kinds of chrome, one is decorative chrome and the other is hard chrome.Chrome plating is a better method to increase the surface hardness. It has many advantages, good surface finish, no rust, small deformation of the original parts during chrome plating, chrome plating thickness is generally a few filaments, and the surface is beautiful. Chrome is widely used in automobiles, bicycles, household appliances, household hardware, instrumentation and other industries. The polished chrome layer has a high reflection coefficient and can be used to make mirrors.

 

Chrome plating (also called chromium plating), often referred to simply as chrome, is a technique of electroplating a thin layer of chromium onto a metal object;

 

The chromed layer can be decorative, provide corrosion resistance, ease cleaning procedures, or increase surface hardness;

 

The functional advantages of trivalent chromium plating are higher cathode efficiency and better throwing power. Better throwing power means better production rates. Less energy is required because of the lower current densities required. The process is more robust than hexavalent chromium because it can withstand current interruptions;

Chrome plating a component typically includes these stages:

Degreasing to remove heavy soiling;

Manual cleaning to remove all residual traces of dirt and surface impurities;

Various pretreatments depending on the substrate;

Placement into the chrome plating vat, where it is allowed to warm to solution temperature;

Application of plating current for the required time to attain the desired thickness.

 

 

Besides, chromating, some other surface coating is also common and welcomed, like casting-self- color, blasting, power coating,anodizing, oxidation, etc.

aluminum alloy lighting part with self-blasting  aluminum alloy anodizing aluminum alloy casting with electroplating

The chrome-plated aluminum alloy castings are very beautiful and smooth in appearance. This requires some attention during packaging. Generally, we will pack chrome-plated cast aluminum alloy parts with separate bubble bag for each part then into carton box or wooden box, and do a reinforced outer packaging.