Two-Piston Metering For Abrasive Fillers

摘要

A new metering machine for filled PUR is designed with two pistons operating in tandem to feed abrasive fillers,flame retardants,or reinforcing fibers.The Tandem Hybrid machine from Krauss-Maffei Corp.,Florence,Ky.,reportedly overcomes the inconsistent flow rate of single-piston metering.Constant flow is often needed with long shot times or to supply several mixheads.