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Static Gets Worse at Higher Line Speeds: Keys Toward Maintaining Good Static Control

(Surface Prep)

May 12, 2024, ...  3886(89)90005-3). Bunching up of charges is proportional to (line-speed) * (resistivity). So, if the line speed increases by 20 percent, the web resistivity must decrease by 20 percent to have the ...

LaserSpeed Pro Enables Converters to Accurately, Reliably Control Web Tension and Realize Value

(News | New Products)

May 09, 2021, ... a rate proportional to the speed. The pulse output is sent to a control system to indicate length and trigger process actions. An ultra-fast processing engine reportedly enables length and speed measurements ...

Static Control for Labels

(News | New Products)

September 27, 2020, ... stack have no static. Yet, the balanced charges cause the voltage VStack to increase as the stack builds. The voltage VStack is proportional to the static charge density sLabel and the stack height HStack; ...

Web Tension Control Fundamentals

(News | New Products)

January 24, 2019, ... purpose of measuring the tension in a web, transforming the tension force into a proportional electrical signal.  The electrical signal is amplified and used for display and or feedback in the tension ...

Advanced Motion Controls Announces Analog Servo Drives

(Drives/Motors)

June 08, 2013, ... loop proportional gain settings, 8 velocity loop integrator gain settings, and 4 tachometer scaling settings. In addition, selectable inhibit logic, fault logic, and linear ramping are reported to make ...

Pollution Control: 10 Tips To Cut CO2

(Coating/Laminating)

August 31, 2010, ... low VOC airstreams prior to the oxidizer | If a significant portion of the air entering your oxidizer is at or near ambient temperature with low levels of VOC loading, a concentrator may be applicable ...

Motion Control: Drives

(Controls)

August 23, 2010, ... the unique Siemens Converting Toolbox, a suite of product specifications and application software that allows an engineer the flexibility to customize portions of a machine build, then recall and reuse ...

Tension Control

(Tension)

November 30, 2008, ... tension on/off, and E-stop; and a 0-1mADC meter output proportional to measured tension. The Spyder is a cost effective, easy-to-use control capable of delivering advanced features such as adjustable taper ...

Mechanics of Tension Control, Part II

(Archive)

November 29, 2004, ... rewind roll diameter. These controls are extremely useful for controlling the tension off an unwind and onto a rewind. However, because they control tension by proportionally decreasing (unwind) or increasing ...

Controlling Coater Gap Uniformity

(Magazine)

October 31, 2002, ...  When positioned parallel to an earth-grounded or conductive target, the sensor/guard combination measures a capacitance proportional to the air gap. When the signal is input to a specialized signal ...

Control of Adhesion and Removal of Heat Sealable Tops on Polymer Containers

(Magazine)

December 31, 2001, ... process. This explains why the peel strength depends on the thickness of film. The tensile strength is proportional to the thickness of the film. Conclusion Cohesive and interlaminar failure are preferable ...

Controlling Your Web from Beginning to End

(Magazine)

November 30, 2000, ... require two other rigidly mounted rolls to define a stable thread path around the sensing roll. And both provide feedback signals that are proportional to the force applied to the sensing roll and input ...

Pollution Control Innovation for Silicone-Based Coatings

(Magazine)

July 31, 2000, ... a portion of the heat exchanger. Furthermore, because the tubes are in a horizontal position and the hot oxidizer gas flows over the tubes in a vertical direction, the heat exchanger is cleaner for a longer ...

Label converter controls quality from the inside out

(Magazine)

August 31, 1996, ...  In addition to runs for individual customers, Walle prints "combination work" and "club runs," where multiple customers' labels share a sheet that is printed in standardized colors, proportionately sharing ...

New measurement technology improves web control.

(Magazine)

January 31, 1996, ... is diminished, the electromagnetic field becomes distorted, starts to overlap with the second coil, and produces an electrical signal directly proportional to the mechanical force, as shown in Figure 1b. ...

Measuring the Coating Window: Simplify the Concept with Mapping

(Coating/Laminating)

June 23, 2024, ... is that by keeping pump speed proportional to line speed, the coating weight is kept constant. Step 2: Start Inside the Coating Window How do we do that without knowing the window? Trial and error. ...

Sustainability: A Journey Through Coating and Lamination Technology

(Coating/Laminating)

June 19, 2024, ... contribution. Oven air recirculation is also a contributor to efficiency. Forcing a portion of the exhausted air to circulate back to the oven under controlled percentages allows for significant energy ...

Flexible Packaging — In a Constant Cycle of Evolution

(Flexpack)

June 16, 2024, ... and global pressures continue to dictate the future of packaging formats. A common driver behind flexible packaging films is the proportions of recycled content. Both consumers and brand owners are influencing ...

Surface Tension and Wettability

(Surface Prep)

May 01, 2024, ... rates, leading to disproportionate changes in concentration levels over time and, consequently, alterations in the measured dyne level. Exposure to environmental factors or utilization beyond the stated ...

Tension: The First Thing We Must Get Right

(Converting Expert)

April 08, 2024, ... to “trim” the velocity of the driven roller using feedback from the load cell or the dancer position (Figure 4). The amount of trim is typically 5-10 percent.  Figure  4  PID Loop “Proportional ...