Hydraulic Headboxes – Stock Jet Geometry for Roll Type Gap Formers

Describes the critical features of the stock jet geometry for a hydraulic headbox installed on a twin-wire paper machine. Discusses the importance of sheet formation and describes the stock jet geometries that affect formation and other sheet properties. Covers some common headbox adjustments and other settings that can affect the stock jet geometry.

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Course Details

Learning Objectives

• Describe the purpose of the headbox in the papermaking process • Define the terms “jet length,” “jet angle,” and “jet impingement” • Identify the jet length, jet angle, and jet impingement in a stock jet diagram • Describe the impact of stock jet geometry and sheet formation on the appearance and strength properties of the sheet • Describe the effects of the slice opening and fan pump speed on stock jet geometry

Specs

Course Level Intermediate
Languages English
Compatibility Audio, Video

Author

Vector Solutions

With over two decades of experience designing advanced 3D animated courseware and developing our proprietary learning management software, we pride ourselves by having developed over 1,000 safety and operations training modules, which have helped train over 250,000 workers worldwide. Our highly experienced team provides the industry with a simple and high-quality means of training their workforce. Whether your team consists of 25 people or an enterprise with thousands, we’re here to help.

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