It is but natural that during the process, material being coated on substrate will fall off in the vacuum chamber. For example, Aluminum heated and evaporated to be coated on BOPP film (film metallizing) or on some object (object metallizing) will fall off on vacuum chamber and shields. Being in molten state this will weld…
In any vacuum system it is most important to know accurately the level of vacuum on real time basis as even a minor change in vacuum can result in process parameters going haywire and product quality getting adversely affected. In modern day vacuum systems we use sophisticated vacuum gauges to know the vacuum accurately.
In today’s competitive scenario a lot of stress is laid on increasing productivity by using machine time effectively. In case of Vacuum coating, process time is difficult to reduce without compromising on quality (NOT acceptable).
Various industries employ myriad consumables for vacuum operations. These consumables may cost anywhere from a couple of hundreds to lakhs of rupees. This gives rise to the question: Are low cost consumables lesser in importance to high cost ones? Is that the reason why they cost less?
This blog post is about two major issues related to leakage – Detection and Prevention.
Grease is a lubricant in a semi-solid state. It is generally applied to those machinery parts where liquid lubricants would not stay and need to be applied only occasionally.
Vacuum pumps are a small but extremely critical part in a much larger vacuum coating process. Oils meant for these vacuum pumps need to be very reliable since one doesn’t want unnecessary stops in the vacuum cycle. Apart from giving us the desired vacuum level, these oils should protect and preserve the pump interiors and not form oil…
In the present time of cut throat competition, users are under great pressure to reduce the cost of production. To achieve this objective, many times vacuum oils are not changed at specified intervals to get more “life” from them.
Diffusion Pump Oil is one of the costliest consumables required by vacuum users. In the present day scenario of cut throat competition, engineers are under a lot of pressure to reduce costs without compromising on quality.
In the present time of intense competition, it is natural that engineers are trying hard to optimize the use of every resource to reduce costs. In Metalizing, Evaporation Boats undoubtedly contribute most in variable cost. It is therefore important that maximum life is derived from Evaporation Boats without affecting the quality of Metalizing.