Maintenance Data improves performance & reliability - webinar
Developing maintenance data in your Computerized Maintenance Management System (CMMS) can improve your machinery and personnel performance and reliability.
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Web holder design, principle of operation and maintenance
Web holders maintain tension in a threaded sheet during a splicing or set change sequence. Typically located next to a guide roll or under a rear drum.
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Understanding coater blade angle vs. loading tube pressure
For a given blade tip bevel, when load tube pressure is increased, the blade angle will decrease, resulting in the blade running on its heel for a while. This, along with the additional bending pressure at the blade tip, will reduce coat weight. It is important to understand the interaction between blade angle, blade tip angle and loading tube pressure.
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Brief introduction to Lean 6 Sigma - the DMAIC concept
Many mills use this process improvement tool. For those who are not acquainted with it, here's a brief summary of the 5 steps of Lean 6-Sigma (DMAIC for short).
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Common fluids valves explained: Pressure reducing valve
Pressure reducing valves are used to create and hold a pressure setpoint in a downstream hydraulic branch. Valmet uses sandwich style valves because they are easy to fit in a stacked hydraulic valve block circuit.
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Smooth extended nip press (ENP) change-out, a case study
Valmet supervised the change-out of an ENP module. This included a preliminary NipScan and audit of the press and hydraulic units to spot potential problems.
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Measuring applied and residual coat weight on applicator rolls
Starch and coating is applied to the applicator roll using a rotating rod. The amount of coating applied to the roll is the most important variable for good coat weight control. This article describes a method of measuring the wet film on the fly across the size press, using a simple measurement tool.
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Vibration monitoring and analysis in tri-nip press, case study
A paper machine experienced vibration in its tri-nip press on the tending side only. Valmet condition monitoring and vibration analysis used synchronous time averaging (STA) to assist in solving the problem.
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Valmet Superheater FuelDiet KCl Corrosion Management solution
Valmet Superheater KCl Corrosion Management can reduce fuel costs by using low-priced fuels without increasing the risk of superheater corrosion.
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Valve design leads to higher polymerization efficiency
If you’re looking for tips on choosing the right valves for efficient plastic production, this blog is for you.
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