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Vacuum Web Coating

Blogmaster: Dr. Charles A. Bishop


Pumping

09
We have a Varian make diffusion pump nhs-35. the pumping speed is 50000 ltr/sec. in which we supply the water of 22 deg celcius in the cold cap of diffusion. If go for down temp. in minus side there is any effect in pumping speed of pump.     The purpose of the cold cap is to help preve...

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Posted in: Pumping
18
As there are a number of moving parts inside any roll to roll vacuum coater it is important that bearings are lubricated. Similarly of you are using rotary vane and diffusion pumps an essential part of the pumping system is the oil.  However from the standpoint of adhesion of any coating oil is...

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Blogmaster

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Dr. Charles A. Bishop

Charles is a toolmaker by trade after completing a mechanical engineering apprenticeship. He then entered University and obtained a Bachelors degree in materials engineering with a Diploma in Industrial Studies. During his final year he first started work on vacuum based research, helping develop a process for manufacturing titanium based bone implants for tendon location. He went on to obtain a Masters degree and Doctorate following further research into vacuum deposition processes. During this time and as a postgraduate he also worked as a consultant.

Charles next spent time in industry working for various divisions of ICI including polyesters, nylon, Imagedata, Flex Products Inc., and explosives as well as contributing to other projects. In 1998 he took the opportunity to return to consultancy work and set up his own company.

Charles has more than 30 years experience in vacuum deposition mainly onto flexible webs. He has regularly contributed papers to conferences and recently has edited this blog on behalf of AIMCAL as well as being one of their presenters for various webinars and the more formal Converting School courses.

Charles has also published 2 books, Vacuum deposition onto webs, films and foils and Roll-to-roll vacuum deposition of barrier coatings.