Induction Heating Primer
Cap sealing is a common application for induction heating. This process involves the bonding of a laminated aluminum foil seal to a plastic receptacle. Typical examples include: medicine bottle caps, toothpaste tubes, and ointment and cream containers. Induction heating provides a ring of localized heating that creates a hermetic seal between the laminated aluminum and the plastic container. The seal produced increases the shelf-life of the product and reduces spoilage. This edge-effect heating is localized and quick to ensure that only the intended location on the product will be heated, preventing leakage and ensuring a tamper-proof seal. Induction heating also makes for an efficient, clean and environmentally safe assembly line production.