As outlined by Ambrell, a cap to container seal is produced with the aid of a laminated disc comprised of a wax layer, aluminum layer along with a polyethylene (PE) layer. The aluminum layer acts as a susceptor, induction heating equipment to around 125 to 150 degrees C in the electromagnetic field produced by the induction coil. It then gets hotter the wax and PE layer sufficiently to produce a hermetic seal between your cap and container. Heating time is under a second in this high-speed, low energy consuming automated process.
Sealing caps on food containers and medicines are virtually overlooked, but picture the safety and health dangers, as well as the nasty molds, consumers would be susceptible to if these caps weren’t properly sealed. By far the most extended induction application in this particular industry is the high-speed hermetic sealing in tamperproof packages, cap sealing and aseptic packaging. This system guarantees the integrity in the seal, along with the preservation in the product for longer periods of time.
One of the leading advantages of induction heating is its energy efficiency. “Reduced energy usage in the manufacturing process is actually a win-win for creating 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 possibly a responsibility. It really 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, just a small fraction when compared to total mass that needs to be quenched during the final heat treatment. The lowest possible energy input and resulting reduced energy consumption translates directly into improved environmental benefits.”
Induction heating is an environmentally friendly option to induction aluminum melting furnace, including blowtorches, oil baths, ovens and hot plates. These expensive methods produce smoke, fumes and oil waste, and so are hazardous to personal safety and working environments.
But you can find dangers related to the induction means of heating. Fortunately, the 2014 edition of 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” shall be linked to the equipment and become plainly visible where persons might come in contact 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 must be affixed for the heating equipment, providing the manufacturer’s name, model identification and also the following input data: line volts, frequency, variety 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 carried out with advice from suppliers who uses induction heating methods for new product development, process dexjpky33 and troubleshooting. Consultants work primarily with operators and line forepersons who are responsible for day-to day-equipment operations. Best practices include using lockout devices when servicing equipment.
Signs and labels needs to be found in facilities to warn workers regarding the hazards of working together with induction heating on power supplies and coils that utilize high voltage. Another recommendation is the application of personal protective equipment (PPE) connected with working with induction brazing system. All equipment should utilize light guards or similar protective devices to avoid both connection with the coil and moving mechanical assemblies that might harm the operator during automatic operations.