Обзор

Melt flow rate testing machine: a specialized equipment for measuring the melt flow rate of thermoplastic under certain conditions, and can indirectly determine the molecular weight of high polymers. The melt flow rate (melt index) of thermoplastic refers to the mass or volume of molten plastic passing through a standard specimen outlet every 10 minutes at a certain temperature and load, expressed as MFR (MI) or MVR value, which can distinguish the viscous flow characteristics of thermoplastic in the molten state. Suitable for testing engineering plastics such as polycarbonate, polyarylsulfone, fluoroplastics, nylon, etc. with high melting temperatures, as well as for testing plastics such as polyethylene (PE), polystyrene (PS), polypropylene (PP), ABS resin, polyoxymethylene (POM), polycarbonate (PC) resin, etc. with low melting temperatures. It is of great significance for ensuring the quality of raw materials and products of thermoplastic plastics and chemical fibers.

Application field

Widely used in factories, product quality inspection institutes, research institutions and other units for the production, inspection, development, research and other fields of plastics.

Стандарты

• GB/T3682-2018 “Determination of Melt Flow Rate and Melt Volume Flow Rate of Thermoplastic Plastics”
• ISO 1133:1997 “Determination of Mass Flow Rate (MFR) and Volume Flow Rate (MVR) of Thermoplastic Melts”
• ASTM D1238 “Standard Test Method for Determining the Melt Flow Rate of Thermoplastic Materials by Extrusion Plastimeter”

Testing method intro

Mass method and volume method: one machine for two purposes, Displayed through a 7-inch touchscreen controller

Mass method interface

Volume method interface

Основные технические характеристики

Temperature control

（1）Range: 100~450℃

The following commonly used temperature points have been set and calibrated at the factory: 125, 150, 190, 200, 220, 230, 250, 265, 275, 280, 300 ℃

（2）Fluctuations:±0.2

（3）4-hour drift: ≤0.5℃

（4）Distribution: ≤0.5℃

（5）Resolution: 0.1℃

（6）Error correction

Recovery time of specimen barrel temperature after feeding: ≤4min

Pacer clock

（1）Range: 0~6000s；

（2）Resolution: 0.1s

Cut-off unit

（1）Automatic timed cutting

（2）Jogging cutting

（3）Manual cutting

Inner diameter of specimen outlet: Φ2.095±0.005mm；

Length of specimen outlet: 8.000±0.025mm

Inner diameter of specimen barrel: Φ9.550±0.020mm

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（1）Accuracy: ≤±0.5%

（2）Standard configuration load: 875g/960g/1200g/1640g

（3）Weight accuracy: ±0.5%

Data output method: Print output through a micro printer

Measurement range: 50-3000cm³/10min

Power supply: AC220V±10%  50HZ

Overall dimension: L×B×H=550×430×700mm³

Total Weight: about 80kg for the entire machine

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