When high-temperature products immediately after extrusion were exposed to strong cold air, rapid surface shrinkage occurred, leading to quality defects such as warping and shriveling.
The area around the extruder was constantly exposed to high radiant heat, but because of concerns about process defects, it was difficult to apply strong cooling, leaving workers in a continuously heat-exposed environment.
Standard metal ducts or fans made it difficult to precisely control airflow speed and direction, negatively impacting the process while failing to efficiently deliver necessary cooling to the operator zone.
We applied diffused discharge rather than direct airflow in the die section, ensuring the final wind speed reaching the product is maintained at 0.8m/s or less.
By separating the airflow between the critical process zone where the product passes and the area where operators are stationed, we ensured effective cooling for workers without compromising process quality.
We applied directional discharge to the operator line, ensuring that cooling air is concentrated around the workers even in areas with high radiant heat.
We optimized static pressure and discharge patterns to reduce heat buildup in the upper areas of the factory, effectively stabilizing the overall thermal environment.
We stabilized the airflow reaching the core process section at 0.5m/s, effectively mitigating the risk of surface shrinkage and deformation caused by cold, high-velocity air.
By precisely controlling the airflow directed at the die area, we achieved a zero-defect rate related to wind speed, ensuring consistent process quality.
While protecting the process area, we effectively supplied cool air to worker zones, improving the high-temperature environment caused by radiant heat from extruders and stabilizing the perceived working conditions.
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