Thermoforming Lesson 3: Pre-Heating and Heating the Plastic

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Lesson 3: Pre-Heating and Heating the Plastic
In the thermoforming process, the plastic is heated twice - once in the extruder and once in the thermoforming machine. This lesson covers the 3 main heating methods used in the thermoforming machine - conduction, convection and infrared. Control of the heating in the thermoformer is a key to good part quality. Explains how plastic absorbs heat and how that affects the thermoforming process. Expands on the infrared heating of the plastic sheet including emissivity, view factor, wavelength and absorption.
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Thermoforming is one of the most common processes for making a wide variety of consumer and industrial plastic parts. It is one of the fastest growing of the plastics manufacturing processes. The thermoforming industry employs thousands of personnel. While simple in concept, thermoforming is a complex process requiring knowledgeable and skilled personnel at all levels in the plant.
This is a 6 lesson (10 hour) training program. Your personnel will learn the fundamentals of the thermoforming process and how to quickly solve problems. They will develop advanced troubleshooting skills. You’ll receive complete training on all aspects of day-to-day thermoforming production
Some of the topics covered in Paulson Training's Thin Gauge Thermoforming interactive training course include:
• Each step in the thermoforming process is explained using actual in-plant footage and High Definition 3D animation.
• The behavior of the molten plastic and its effects on part properties is explained and also shown using detailed graphics.
• How each step in the thermoforming process - heating, forming, and trimming - effect the thermoformed parts.
• Since the thermoforming process starts with sheet extrusion, the course also covers extrusion and sheet extrusion fundamentals
• How to optimize control settings, safety around the thermoforming machinery and thermoforming for maximum efficiency and profit.
This training program is recommended for: Operators, Setup Personnel, Process Technicians, Maintenance Technicians, Process Engineers, Project Engineers