Vacuum Metalizing Process
This is the process by which metals are evaporated inside a vacuum chamber which later bonds to produce a uniform metalized layer. Vacuum metalizing has a number of uses. They include metallic finishes, shielding and decorative chrome. Thermal evaporation which is also called Physical Vapor Deposition is the process that is utilized to apply metals under a vacuum. Mentioned below are stages of vacuum metalizing process.
The Tooling Process
The very first procedure is the fabrication of tooling fixtures that hold and mask the various parts during the vacuuming and painting process. During this phase, tooling fixtures should offer appropriate efficiency in the amount of components which will bring about the finest possible piece cost.
The Loading Step
The Next step is scrutinizing tooling fixtures and then releasing them to be manufactured. In this process, the client is the boss because anything being done ought to be according to their own preference. They set guidelines that are followed to the core during the processing of the parts. Wearing of gloves is a must when loading the components so that there are no contaminants transferred to the components. After review of the components to ensure that there are no visible flaws, loading may now occur onto the tooling fixtures.
Basecoating is a very crucial process since it helps to ensure that the end product is of top quality. It promotes adhesion and as a result provides smooth surface. This a measure that is only used for reflective finishes . Six-axis robotic paint cells and automatic reciprocating paint cells are examples of the methods that are used to perform the process of coating.
Vacuum Metalizing Process
Before anything is done in this process, the tooling fixtures are placed into Carousels that are pushed into the vacuum chamber. What happens next is that current is delivered to the origin of evaporation. The origin is generally a tungsten filament that’s loaded with aluminum. The filament is then heated to a point that the alloy evaporates and then forms a cloud of vapor that bonds with the parts. After the process of metalizing is done with, the room is taken back into the atmosphere.
The significance of a topcoat are that it enables moisture, chemical resistance and abrasion. There are different topcoats that apply to different applications. The topcoats accountable for the gold, metallic matte finishes and bronze result are dyed and tinted topcoats. For effective results, work should be done in a clean environment and organized manner.
Inspection is the final stage whereby the parts are checked if they are properly done according to the instructions made by the customer. There’s a database which tracks if there were errors during the process and finally tracking tags are set up for tractability purposes.