The determinationof the melt mass flow rate is essential to evaluate the flow properties of the molten plastics or resins. The rate of flow of molten resins is measured in a jet of a specific length and diameter. The test is performed to determine the melt flow volume and flow rate of thermoplastic materials. All the standard terms of temperature and pressure are provided as per the ASTM standards. The MFI calculation is based on the formula. The MFI of resins, granules and thermoplastics are calculated as the rate of flow of plastics in gram per ten minutes flowing out from a jet of appropriate length and diameter.
The test is performed under some standard conditions of load and temperature. The mass flow is expressed in gram per 10 minutes. The volume of flow is expressed in centimeter cube per 10 min that is multiplied by the density of the material in the melted form.
Melt Flow Index (in Grams) is equal to Weight of Melted Specimen in Ten Minutes
The testing equipment is used for different industries such as flexible packaging, injection molding, blow molding, plastic barrel, rigid plastics, stretch blown, pipes, plastic rope, compound (resin), food & beverages, and for woven sack and raffia tapes.
An Efficient Formula for determination of the melt mass-flow rate
The premium quality of testing equipment is used to measure the flow rate of plastic resins for determination of the melt mass-flow rate. The instrument has a microprocessor based PID controller for setting the range of temperature easily from ambient to 400 Degree Celsius. The device has an accuracy of ± 0.1°C with a resolution of 0.1°C. The buzzer is provided that sounds when the task completes. The automatic sample cutter aids in error-free operation. The other accessories supplied with the tool are an orifice, spoon, piston, plumb line, spanner, material changer, tweezers, mirror, sample cutter, orifice cleaner, accessory stand and many more.
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