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Helpful coating tips: jet angle, gap, critical factors, etc.

Helpful coating tips: jet angle, gap, critical factors, etc.

Factors that increase coat weight: decrease of blade load, decrease tip angle, increased viscosity/solids, increase speeds & increase in sheet roughness.

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Conversion projects open the door to new opportunities

Conversion projects open the door to new opportunities

Rather than permanently idling a paper machine, why not move into a growing market such as packaging?

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Reeling terminology and how to achieve proper roll structure

Reeling terminology and how to achieve proper roll structure

Proper roll structure requires carefully controlled winding, to enable the resulting parent reel to be stored and unwound in downstream processes in a trouble-free manner. This article presents a glossary of terms and description of roll structure.

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Stainless steel care, cleaning, surface prep and passivating

Stainless steel care, cleaning, surface prep and passivating

Stainless steel is corrosion resistant and maintains a film of chrome oxide over its surface. Under normal conditions this film is self-healing.

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Safety, operation and maintenance of water jet tail cutter

Safety, operation and maintenance of water jet tail cutter

Beloit's original Water Jet Tail Clip was a hardworking tail cutter and its operation, maintenance and safety considerations are reviewed in this article.

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Reducing coater variability with a coater beam replacement

Reducing coater variability with a coater beam replacement

Many existing coating station blade beams experience MD and CD coat weight variability due to a variety of factors. Replacing the blade beam with a Valmet OptiCoat beam reduces variability and improves end product quality.

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Niploading of SymSizers - problems, corrections and maintenance

Niploading of SymSizers - problems, corrections and maintenance

Nip loading varies based on the type of size / coating applied, the roll crowns and the incoming sheet. Wrinkles, skewing and e-nip profiles are important.

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Achieving boiler MACT (Maximum Achievable Control Technology)

Achieving boiler MACT (Maximum Achievable Control Technology)

The primary goal of a boiler tune-up is to improve efficiency with respect to combustion operations by re-establishing the air-fuel mixture for the operating range of the boiler and balance oxygen and unburned fuel.

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Coater backing roll showers - purpose, layout and setup

Coater backing roll showers - purpose, layout and setup

Showers on the coater backing roll lubricate, cool and prevent coating buildup. This extends roll lifetime and can reduce coater-related sheet breaks.

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Five checks at shutdown when inspecting rubber covered rolls

Five checks at shutdown when inspecting rubber covered rolls

At a shutdown, to determine if the cover should be taken out of service for either regrind or recover, inspect the cover for these five issues.

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