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Know the winder danger zones and related safety equipment
Working in the winder area involves risk to operators and maintenance personnel. Although guards and warning lights and horns help to improve safety, workers must always be aware of the risks involved in each section of the winder.
Insights ● Article
Valmet Field Services strive to earn your trust every day
Valmet's Field Service professionals are on a mission to earn your trust. Assisting you in moving your performance and reliability forward on a shared journey requires expertise, safety consciousness and trust.
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Coater pivot frame hysteresis analysis can solve binding problems
Most blade coater beams are fastened to pivot frames which move the head into position when the coater is loaded. In the case of rigid support profile bar coaters, if the pivot frame binds, coat weight control suffers. A hysteresis test may be needed.
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Speed increase creates suction roll bearing vibration, case study
Analysis of unusually high vibration levels from a suction roll back internal bearing pointed to a recent speed increase. Lubricant and a transducer helped.
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Mill finds good housekeeping can reduce vibration, case study
PM5 was producing waves of vibration that speed limited the machine, reducing production by 10%. Vibration analysis pointed to the gearbox pinion shafts.
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10 tips: Resist headbox corrosion in maintenance & operation
Corrosion can be minimized by adhering to these maintenance and operating procedures.
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An introduction to troubleshooting with vibration signatures
The moment an asset is placed in service it is headed towards failure. It is the vibration analyst with tools and techniques, who helps prevent costly downtime.
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Understanding coating viscosity, rheograms and rheology problems
Coating rheology is measured with low shear and high shear viscosity instruments. In coating rheology, viscosity is the measure of the resistance of a coating formulation to an imposed flow.
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Press fabric monitoring explains machine operating performance
Good press felt monitoring and conditioning methods help avoid runnability and quality problems. There is no single approach - but some of the best practices are described in this article.
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Winding principles part 3 - drum torque control methods, summary
When web tension and drum nip pressure are constant, drum torque will assure uniform or diminishing roll hardness from the core toward the outside of the rolls.
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