EcoShot™ Spray System

Improved External Cooling

With competing continuous spray systems that use water-based lubricants, die casters often experience poor external cooling effects and subpar lubricant adhesion. Water evaporates upon contact with the high-temperature die, forming a gas that acts as a barrier between die lubricant and the mold. This barrier of evaporated water prevents lubricant adhesion and is known as the Leidenfrost effect. The surface temperature of the mold must gradually converge with the Leidenfrost point 193 °C (379 °F) before lubricant can finally adhere. Such drastic heating and cooling takes time, and can cause damage to the die over repeated cycles. Significant quantities of water-based lubricant are used to cool the die before finally forming lubricant film, resulting in a large quantity of waste. 

With EcoShot's rapid pulse spray, external cooling effects are improved through mitigation of the Leidenfrost effect. Though rapid pulsing of lubricant spray, water is allowed to fully evaporate before applying additional lubricant, which prevents a gaseous barrier from forming. As the barrier is not able to form, EcoShot's pulse spray improves lubricant adhesion, even at higher die temperatures. With this rapidly repeated process of spraying and evaporation, external die cooling becomes faster and requires less die lubricant. Cycle time decreases due to the unprecedented 0.01 second pulsations and lubricant quantity is drastically reduced.