Melt flow rateceremonyIt is an instrument for measuring the melt flow rate of thermoplastic under certain conditions，It refers to plastic that, under certain temperature and load,The molten material extruded through a die of specified length and diameterMelt qualityflow rateMFR or meltVolume flow rateMVRexpressIt can distinguish the viscous flow characteristics of thermoplastic in the molten state；The quality assurance of raw materials and products for thermoplastic and synthetic fibers is of great significance，Especially in terms of quality inspection and warehouse testing.