Why do profile hot extrusion use straight-insert extrusion barrel (ingot barrel) electric heating tubes?

The extrusion barrel (ingot holder) is an essential component in the current hot extrusion process for copper and aluminum profiles. As the extrusion process becomes increasingly precise, the heating system also determines the quality and yield of extruded alloy profiles. Currently, the more common extrusion barrel heating methods include: a. Annular Harvard-type heating elements; b. Induction copper rod heating; and c. New in-line internal heating tubes.

The new in-line heating tubes for ingot holders offer the following advantages:

1. Energy saving and consumption reduction: The copper and aluminum extrusion industry is energy-intensive, making energy conservation a top priority for businesses. Because the new in-line heating tubes for ingot holders are internal, the heat dissipation area is also the heating area, reducing energy loss. With external, enveloping heating, heat dissipated into the air is wasted. For the same size extrusion barrel (ingot holder), in-line heating tubes can reduce power consumption by 20% from the outset, achieving faster heating times and better results.

2. Extended Lifespan: It's well known that heater tubes have a specific lifespan. Given the same material and power, a higher specific heat output correlates to a shorter lifespan. Because the new direct-insert barrel heater tubes have a very large tube diameter (typically 21-38mm), their specific heat output is relatively low, resulting in a longer lifespan. However, any problems with the heating system will inevitably lead to a halt in extrusion production. The lifespan of heater tubes is crucial for profile extrusion companies, as reduced maintenance and failure rates translate into cost savings.

3. Easy Installation: The new direct-insert barrel heater tubes are installed in perforated areas within the barrel housing, ensuring uniform placement and a stable heating area. Installation relies primarily on a conductive alloy bar secured to an insulating mica fixture, eliminating the need to remove the inner and outer bushings of the extruder barrel. Welded connections prevent vibration that could cause malfunctions in the heater tube's conductive system. External connections utilize hardened stainless steel connectors, which can be designed to suit specific operating conditions.

4. Safety Performance: The plug-in electric heater barrel features stable insulation performance. The resistance wire is securely fastened to the barrel by filler. Before shipment, each product undergoes a series of safety tests, including insulation level testing, high-voltage resistance testing, leakage current testing, and life testing, ensuring reliability and durability.

As mentioned above, heater barrels are crucial components of aluminum alloy profile extruder barrels. Therefore, it is crucial for hot extrusion profile manufacturers to source high-quality, durable, and qualified electric heater barrel suppliers.