T/SZMES 4-2021 Plastic film molding equipment electromagnetic heating device technical requirements

Scope

Scope: This document specifies the terms and definitions, components, requirements, and test methods for electromagnetic heating devices used in plastic film forming equipment. This document applies to electromagnetic heating devices used in plastic film forming equipment, including cast film, extrusion, and blow molding equipment. Main technical content: 5.1.1 The device shall operate reliably within the design process parameters according to the set program, and all electrical wire connections must be firm and not loose. 5.1.2 When the device has multiple electromagnetic heaters, the heating temperature of each electromagnetic heater shall meet the temperature requirements of the production process. 5.1.3 The allowable deviation between the set heating temperature of each electromagnetic heater and the actual temperature after stabilization shall be ±2°C. 5.1.4 The device shall have a soft start function, ensuring no impact or electric arc during the entire start-up process. 5.1.5 When the device has multiple electromagnetic heaters, there shall be no electromagnetic interference between them that causes sudden increases in operating current or heating temperature. 5.1.6 The specific energy consumption of the device shall not exceed 0.04 kW·h/kg. 5.1.7 The high-temperature resistance limit of the induction coil and connecting wires shall not be less than 500°C. 5.1.8 The high-temperature resistance limit of the insulation and thermal insulation materials used in the electromagnetic heater shall not be less than 800°C.

Development Information

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