Heating Temperature: The infrared filament-type cathode tool and hot plate tool can both reach temperatures of 550-600℃. However, their heating times differ significantly. The infrared welding machine achieves a temperature range of 350℃ to 600℃ (preheating the product) in just 1 second, whereas the hot plate welding machine takes over 45 minutes to heat from 0℃ to 600℃ (preheating the product).
The conventional hot plate, which uses heating tubes, fails to deliver the rapid heating effect required, resulting in a substantial decrease in machine efficiency.
Heating Method: The IR filament selectively heats the welding ribs area, whereas heating tubes heat the entire hot plate. When reaching temperatures higher than 550℃, demanding hot plate materials, heating tubes, and other accessories are essential for a conventional hot plate. Controlling significant deformation of the hot plate under high temperatures becomes a challenging task.
Heating Distance: During the heating process, there is a gap between the IR filament and the product welding ribs. Since the hot plate’s purpose is to heat the surface of the product welding ribs without direct contact, any touch between the hot plate and the welding ribs would result in damage to the welding ribs’ surface before they close together.
Product Welding Ribs Surface Temperature: Both methods maintain temperatures above 200 ℃. To minimize the accumulation of closing dust, the surface of the welding ribs should reach a molten state.
Heat Conduction: The IR filament conducts heat selectively, affecting only a portion. In contrast, the entire hot plate tool conducts heat throughout. The conventional hot plate transfers heat within the hot plate welding machine, leading to elevated internal temperatures and necessitating protection for the machine’s internal components.
