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By Aisha A Rahman
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The process of coating objects with metal plating is known as magnetron sputtering. Many businesses in the engineering industry have been performing the process of magnetron sputtering. Magnetron sputtering proves to be a very effective adhesive and gives off good results after the coating/plating process is completed. Magnetron sputtering can be used to coat any kind of object including those made out of alloys, or even solid objects or compounds. Magnetron sputtering isn’t restricted to any one kind of metal and happens to be the most flexible metal coating process that is available .
The process of magnetron sputtering is not like that of vacuum metalizing. A lot of cleaning and sterilizing of the object has to take place before it is places in a stainless steel chamber to be vaporized. The use of air pumps, of an advanced level of technology, is required in the process, to assist with the process and to maintain the stainless steel chamber as well. Magnetrons for coating are additionally needed, along with the rotation machines to ensure that the coating takes place evenly on all surfaces of the object .
The vacuum needs to be carefully designed since the design of the vacuum has a huge impact on the metalizing process that has to take place. Air pumping needs to take place for approximately 30 to 40 minutes to makes sure that the environment inside the vacuum is ideal for metalizing. Pressure needs to be exact; at about ten millionth of pressure is needed for the process to go smoothly. An inert gas, like the likes of argon, is used in order to control the whole process of vacuum creation within the stainless steel chamber. The gas helps control the pressure within the chamber to bring it to the level needed for using magnetrons. Close monitoring of the process needs to take place, especially the levels of pressure. The plus side of magnetron sputtering is that it is safe for the environment, unlike the process of vacuum metalizing which leads to harmful emissions. Besides that, there are no dangerous chemicals used in the process either, which means rat it is relatively safe .
Magnetron application is a difficult process and needs to be done carefully. Magnets are placed behind the plates of the object and the sputtering process takes place. The process of sputtering is a technical one and is difficult to understand. After the sputtering process is complete, the ions need to be cleaned. The environment in which the object is placed has to be of low power in order to allow the most minimum level of atoms ionization of the metal that will be used for the coating process. Once cleaning has taken place, deposition needs to be controlled for the plating process, which varies from object to object .
You can learn more about magnetron sputtering from Vergason. Contact the company through their website for more information .