Automotive Industry

Resin Parts Remaining in Mold

Molded parts sometimes stick to and remain in the mold due to the electrostatic charge generated by friction with the mold. Due to miniaturization and thinner designs, molded parts are lighter and stick more easily. As the shape becomes more complicated, the friction surface with the mold increases and the parts become charged more easily. Furthermore, high-speed molding machines cause friction at higher speeds, resulting in larger electrostatic charges and greater risk of parts remaining in molds.

Resin Parts Remaining in Mold

Conventional countermeasures

Handled by workers

  • Disposal cost of defective products
  • Cost increase due to increased labor cost

Countermeasures with static eliminators (ionizers)

Costs can be reduced.

Countermeasures with static eliminators (ionizers)

Improvements and Effects
Words from the worksite

Reduced disposal cost and labor cost required for disposal

Disposal cost of parts remaining in molds: $1,000/month x 12 months = $12,000/year

Labor cost per line: $200/month x 12 months = $2,400/year