Liyi melt flow index extrusion plastometer applies to both molten high temperature of the PE, gather fang PSF, fluorine plastic, nylon engineering plastic, also suitable for polyethylene, polypropylene polystyrene, ABS resin, pom resins melting temperature lower plastic tests.

New desigh of Liyi melt flow index extrusion plastometer:

How it works:
Melt flow rate meter is in the specified temperature conditions, with high-temperature furnace to melt the state of the measured object. The molten state of the measured object, the required weight load by gravity out of a certain diameter hole in the test. Plastics in industrial enterprises and scientific research units of production, often with "melt (mass) flow rate" to represent the polymer material in the molten state of fluidity, viscosity and other physical properties. Melt flow rate refers to the extrudate, the average quality of the sample paragraphs are translated into 10 minutes of extrusion volume. Melt (mass) flow rate expressed by MFR, unit: g / 10 minutes (g / min)
Formula: MFR (θ, mnom) = tref × m / t = 600 × m / t (g/10min)
Where: θ - test temperature
mnom - Nominal Load Kg
m - the average quality of cut g
tref - reference time (10min): 600
t - cut off time interval unit: seconds.

Example:
A set of plastic samples, a cut every 30 seconds, the quality of the results section: 0.081 g, 0.086 g, 0.081 grams, 0.089 grams, 0.082 grams.
Cut the average quality m = (0.081 +0.086 +0.081 +0.089 +0.082) ÷ 5 = 0.0838 ≈ 0.084 (g)
Into the formula: MFR = 600 × 0.084/30 = 1.680 (g / 10 min)

Technical parameters:
1. Squeeze out some material
Discharge port diameter Φ2.095±0.005mm
Discharge port length 8.000±0.025mm
Loaded barrel diameter Φ9.550±0.025mm
Loaded barrel length 152±0.1mm
Piston head diameter 9.475±0.015mm
Piston head length 6.350±0.100mm
2.Standard test load (eight grades)
1grade 0.325kg=(rod + weight + thermal units +1 No. tray body weight)
2grade 1.200 kg=(0.325+2 0.875 eight)
3grade 2.160 kg=(0.325+3 1.835 eight)
4grade 3.800 kg=(0.325+4 3.475 weight)
5grade 5.000 kg=(0.325+5 4.675 weight)
6grade 10.000 kg=(0.325+5 4.675 weight+6 5.000 weight)
7grade 12.500 kg=(0.325+5 4.675 weight+6 5.000+7 2.500 weight)
8grade 21.600 kg=(0.325+2 0.875+3 1.8