Based on Ambrell, a cap to container seal is manufactured with the aid of a laminated disc made from a wax layer, aluminum layer along with a polyethylene (PE) layer. The aluminum layer acts as a susceptor, induction heating system to around 125 to 150 degrees C inside the electromagnetic field created by the induction coil. It then heats up the wax and PE layer sufficiently to generate a hermetic seal between the cap and container. Heating time is less than a second with this high-speed, low energy consuming automated process.
Sealing caps on food containers and medications are basically overlooked, but imagine the health and safety dangers, along with the nasty molds, consumers could be at the mercy of if these caps weren’t properly sealed. By far the most extended induction application with this market is the top-speed hermetic sealing in tamperproof packages, cap sealing and aseptic packaging. This technique guarantees the integrity of your seal, plus the preservation of your product for prolonged periods of time.
One of the leading benefits associated with induction heating is its energy efficiency. “Reduced energy usage inside the manufacturing process can be a win-win for making a competitive advantage,” says Mark Davis, Inside Sales Manager of Eldec Induction LLC. “Being enviromentally friendly in manufacturing is over a philosophy, a method, or even a responsibility. It just makes good ‘cents’ to lessen and conserve. Induction hardening or heating releases less internal residual stresses because of the lowest possible energy input – measured in kilowatt seconds – and, therefore, merely a small fraction compared to the total mass that needs to be quenched in the final heat treatment. The cheapest possible energy input and resulting reduced energy consumption translates directly into improved environmental benefits.”
Induction heating is an eco-friendly substitute for induction aluminum melting furnace, including blowtorches, oil baths, ovens and hot plates. These expensive methods produce smoke, fumes and oil waste, and therefore are hazardous to personal safety and working environments.
But you can find dangers associated with the induction approach to heating. Fortunately, the 2014 edition from the National Fire Protection Association’s NFPA 70: National Electric Code addresses these concerns with specific guidelines for warning labels, signs and equipment marking.
Warning labels or signs that read, “Danger – High Voltage – Keep Out” will probably be connected to the equipment and also be plainly visible where persons might come in touch with energized parts when doors are opened or closed, or when panels are removed from compartments containing 150 volts, AC or DC.
Furthermore, a nameplate has to be affixed to the heating equipment, offering the manufacturer’s name, model identification and the following input data: line volts, frequency, amount of phases, maximum current, full load kilovolt-amperes (kVAs) and full load power factor. Additional info is permitted.
Incorporating best safety practices involving induction heating can be achieved with advice from suppliers who uses induction heating procedures for new product development, process dexjpky33 and troubleshooting. Consultants work primarily with operators and line forepersons who are accountable for day-to day-equipment operations. Best practices include using lockout devices when servicing equipment.
Signs and labels must be used in facilities to warn workers in regards to the hazards of working with induction heating on power supplies and coils that utilize high voltage. Another recommendation is the use of personal protective equipment (PPE) linked to utilizing induction brazing copper. All equipment should utilize light guards or similar protective devices to avoid both exposure to the coil and moving mechanical assemblies that could harm the operator during automatic operations.