About the things of Custom Medal plating
Published on Nov. 23, 2019
A good Custom Medals is not only related to medal design, mold, die casting, but also a factor that cannot be ignored. It is electroplating. There is an old saying in China that people rely on clothing and beauty. This sentence is not only applied to our human beings, but also on many items.
The Race Medal, marathon medals, etc. that we usually see are all wrapped in different appearance colors so that the enthusiasm of the cold metal color changes, and we also love it. How did the gold, silver, and bronze of the medal face be done? Take you to understand the things about the medal plating!
Medal gold plated:
Gold is the most familiar to us. It has the characteristics of soft texture, good ductility and good stability. When electroplating gold is used as an alloy, various colors such as red gold, gold, green gold, and platinum may be plated as the composition changes. Among the gold compounds, gold trichloride is yellow, sodium phosphate is yellow, and gold sulfide is black. It is mainly used in various cyanide gold plating processes, but it is also useful for certain cyanide-free or low cyanide plating solutions such as sulfurous acid. Salt gold plating, citrate gold plating, etc.
Medal silver plated:
Silver is easy to polish, has a beautiful silvery-white color, and is chemically stable, but its surface is very easy to change color by reacting with sulfides, chlorides, etc. in the atmosphere. The main process of silver plating is silver cyanide plating. Since the potential of silver is very positive, the bonding force between the plating layer and the substrate is affected by the occurrence of the replacement layer in the simple salt plating solution. However, cyanide is limited due to its highly toxic nature, and the process of cyanide-free silver plating is still of great significance, such as various cyanide-free plating such as sulfosalicylic acid silver plating.
Medal copper plating:
Copper is a fuchsia-glossy metal that is ductile, easy to process and alloyed. Copper plating is mainly divided into two categories: alkaline copper plating and acid copper plating. Alkaline copper plating is generally cyanide-free copper plating, mainly consisting of pyrophosphate copper plating, citrate copper plating, HEDP (hydroxyethylidene diphosphate) copper plating, etc., these alkaline plating copper, weak alkaline copper plating, dispersion ability No cyanide copper plating is good, but when there is a good brightener, a fine and bright coating can be obtained. Acidic copper plating is mainly sulfate copper plating. Commercial brighteners are now widely used to obtain high-brightness coatings, which are widely used in decorative plating and electroplating.
Medal nickel plating:
Nickel has high hardness, good plasticity, and can be attracted by magnets. Nickel has high chemical stability, is not easily oxidized in the air, and is resistant to strong alkali. In addition to nickel, alloys, stainless steel, coinage, electrodes and catalysts, a very important use is electroplating.
The current nickel plating process is based on a sulfate nickel plating a solution called Watt Nickel.
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Published on Nov. 27, 2019
Published on Nov. 23, 2019