Investment casting processes demand precise temperature and humidity conditions for high quality product integrity and competitive manufacturing output efficiency. While these are critical issues, utility costs are important as well.

Liquid desiccant dehumidification systems deliver a consistent, controlled environment for improved shell quality and greatly reduce running time. Applications including prime coat dip drying, backup dip drying, and final drying frequently benefit from utilizing this technology. Liquid desiccant dehumidifiers also provide clean air by capturing most airborne particulates. Other benefits include:

• Decreased drying cycle time (from several days to one day or even a few hours)
• Aid in forming the investment shell through multiple slurry dips and drying stages
• Uniform results throughout the drying process
• Increased production rate
• Reduced imperfections/reject rate for consistent quality
• Energy efficient operation for reduced utility consumption
• Ability to deliver dehumidification unique to each process area since prime coat dip drying, backup dip drying, and final drying each have their own air condition requirements

This presentation will explore liquid desiccant dehumidification along with its applications and benefits to investment casting in-depth and discuss alternate technologies.