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According to this technical article from Heraeus Noblelight, the application of heat is an important part of plastics processing. Heat is used to allow the softening and forming of plastics and is also applied in associated processes such as sterilising, heat sealing, laminating and gluing. Historically, heating techniques have tended to rely on two prime mechanisms of heat transfer: conduction and convection. Conduction techniques are mainly those which involve the use of hot plattens, so that the heat is transferred directly into the plastic. This can be energy-inefficient, messy and environmentally unfriendly. Convection techniques make use of hot air ovens, which require large areas of valuable factory space, can suffer from intrinsic inefficiency and pose particular problems when there is a need for selective heating of specific parts of plastic components.

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Technical article: infrared applications in plastics processing

According to this technical article from Heraeus Noblelight, the application of heat is an important part of plastics processing. Heat is used to allow the softening and forming of plastics and is also applied in associated processes such as sterilising, heat sealing, laminating and gluing. Historically, heating techniques have tended to rely on two prime mechanisms of heat transfer: conduction and convection. Conduction techniques are mainly those which involve the use of hot plattens, so that the heat is transferred directly into the plastic. This can be energy-inefficient, messy and environmentally unfriendly. Convection techniques make use of hot air ovens, which require large areas of valuable factory space, can suffer from intrinsic inefficiency and pose particular problems when there is a need for selective heating of specific parts of plastic components.

Click on the link above to download this technical article.

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