Coating, metallizing, thermal spraying, vacuum metallizing, vacuum deposition, and metalation are various process involved in metallization process. Coating is where the surface of an object is covered to help in enhancing appearance, adhesion, reducing corrosion and scratches and wear. Treatment, coating and combination of an object with a metal are among the processes involved in metallizing. In thermal metallization, heat is involved to melt a substance that is then sprayed on the surface of another object. Metalation involves reacting two substances where one is a metal that has carbon in it forming an organometallic compound with another organic compound. Placing very thin layers of a substance on an object in a vacuum is referred to as thermal deposition process. In the process of vacuum metalizing, a coating of an object’s surface using a metal is usually done in a vacuum chamber.
Vacuum metalizing involves the process of heating the metal in a vacuum chamber to be used in coating to its boiling point. After vaporization, condensation follows and the metal particles settle on the surface of the object forming a metal coating. Heating and vaporization of the metal uses heat generated in various processes including resistance heating and electron beam. Electric currents are passed through the metal where they encounter resistance hence heating the metal in resistance heating. Electron beam uses cathode rays which emit negative cathodes in a vacuum tube producing heat. Vacuum metallization of objects is used to decorate the objects, protect the object from wear and tear and also to enhance the functions of that object such as increasing the conductivity of poor electrical conductor materials.
Vacuum metalizing has various benefits to the users of the metal. Vacuum metalizing always results into a uniform polish on the object with minimal effects on the health of the user. This is because there some compound and metals that are highly toxic to living organism hence users are protected from coming into contact with them. Vacuum metalizing helps in producing highly durable metals that are not likely to contact water as well as air which triggers rusting in metals. Vacuum metalizing is also an environmentally friendly process reducing the amount of carbon released into the atmosphere.
Measures to prevent any damage on the object should be adopted to ensure that the market value of the object is maintained. Some damages likely to be encountered on the objects during the vacuum metalizing process include the objects having burned parts which lack the shiny color, the coating may be too thin making the object have distinct colors like green appearing and the objects might also be showing rainbow colors. It is always important to ensure that the final product from vacuum metalizing is of high quality.