Performance Evaluation of Meter-mix Dispensing Machine under Varying Environmental Conditions

摘要

This paper deals with the analysis of the performance characteristic of a newly developed meter-mix dispensing (MMD) unit, used for pre-conditioning and metering of two liquid chemicals, namely resin and hardener and injecting the same mixture to a well designed gate to prevent turbulence or air entrapment, under varying influence of pressure, temperature and relative humidity of the environment. Generalised equations for hardener to resin ratio and the total quantity dispensed with have been formulated using statistical design of experiments. Criticality of the parameters has been evaluated, through sensitivity analysis of errors. Reliability assessment of the meter-mix dispensing unit is carried out through accelerated test by using Kstatistics.