Ajax TOCCO Magnethermic recently supplied a forestry products manufacturer with a compact remote transformer and low-profile heating inductor to be used for preheating prior to GMAW. These items were sold as a field install kit that is compatible with, and can utilize, the customer’s existing induction heating cables and accessories. The heating inductor floats above the weldment without making contact. The versatility and usability of the 35 kW induction heater were immediately increased.
The customer needed to be able to heat a rotating weldment with limited space between welds. Existing weld preheat inductors that roll on top of the weldment would not fit between the weldments, forcing the customer to rely on combustion heating technology (torches).
Due to the safety issues and inconsistency associated with combustion heating, the customer reached out to experts at Ajax TOCCO for a solution to their challenges.
Ajax TOCCO was able to quickly analyze their process and custom build a compact, non-contact weld preheat inductor that provided pinpoint heating accuracy, rapid heat rates, and repeatable and traceable results. The size of the inductor is orders of magnitude smaller than existing weld preheat inductors currently offered for moving/rotating parts. The compact inductor can be located anywhere the weld torch can be positioned.
The 1-inch thick weldment is easily preheated to 400 degrees Fahrenheit at 18 inches per minute.
Ajax TOCCO air-cooled induction weld preheat systems offer many advantages, including:
Ajax TOCCO Magnethermic, a subsidiary of Park-Ohio Holdings Corp., designs and manufactures world-class induction heating and melting equipment for various industries and applications throughout the world. In addition, the company provides a range of services and offerings including laboratory process development, preventive maintenance, equipment repair and parts, coil repair facilities, and installation services through its locations in North America, South America, Europe, and Asia.
E-mail: info@ajaxtocco.com
Website: www.ajaxtocco.com