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|Product Name:||Melt Flow Index Tester||Temperature Range:||100-450℃|
|Standard Weight:||875, 960, 1200, 1640||Model:||MFI452|
Melt Flow Index Tester ISO1133 melt mass-flow rate (MFR) and melt volume-flow rate (MVR)
This type of melt flow indexer is a high precise melt testing instrument for the measurement of melt flow rate (MFR)/(MI) or melt volume rate (MVR) in quality control and research applications. The testing result can distinguish the viscous flow performance of thermoplastic material by the model MFI452 showing its advantage in the following industries: factories, products quality testing station, scientific and research institutes, and concerned industries.
ISO1133, ASTM D1238, ASTM D3364, BS2782, DIN53735, JIS K7210
ISO1133 - Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics
This part of ISO 1133 specifies two procedures for the determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastic materials under specified conditions of temperature and load. Procedure A is a mass-measurement method. Procedure B is a displacement-measurement method.
Normally, the test conditions for measurement of melt flow rate are specified in the material standard with a reference to this part of ISO 1133. The test conditions normally used for thermoplastics are listed in Annex A.
The MVR is particularly useful when comparing materials of different filler content and when comparing filled with unfilled thermoplastics. The MFR can be determined from MVR measurements, or vice versa, provided the melt density at the test temperature is known.
This part of ISO 1133 is also possibly applicable to thermoplastics for which the rheological behaviour is affected during the measurement by phenomena such as hydrolysis (chain scission), condensation and crosslinking, but only if the effect is limited in extent and only if the repeatability and reproducibility are within an acceptable range. For materials which show significantly affected rheological behaviour during testing, this part of ISO 1133 is not appropriate. In such cases, ISO 1133-2 applies.
Two digital display control panels with membrane covered buttons, comfortable touching, intuitive operating and real-time data displaying.
Test method (MFR/MVR) can be pre-selected by the control panel, and test can be conducted automatically as preset program. And there is a friendly prompt by hum to alarm the coming end of each test step in the whole test process.
The OMRON E5AZ temperature control system is configured with two groups of platinum resistor temperature transducers and one group of the two is used as spare part which makes a high reliability. And the PID algorithm is used to adjust the temperature and compensate the influence of temperature caused by the environment or undulation of power to ensure a good stability.
Automatic cut-off device, driven by motor, small size, good flexibility. It can carry out the automatic timing cut-off, jog cut-off and manual cut-off as the need of the customers.
Built-in micro-printer. When the Test is completed, the results will be printed on scrip clearly only by pressing on the “Print” button.
The displacement of the piston rod is exactly measured by the infrared sensor.
The piston rod and the filling canister are all made of nitriding steel with high rigidity and strong corrosion resistance.
A set of elaborately designed accessories to provide a convenient operation and maintenance.
|Temperature variation in 4 hours||℃||≤0.5|
Temperature variation with distance at between
10 mm and 50 mm above the die surface
|Interval of temperature recovering after changing testing samples||minute||≤4|
|Resolution of timing||second||0.1~1|
|Inner diameter of die||mm||Φ2.095±0.005|
|Inner diameter of filling canister||mm||Φ9.550±0.025|
|Possible Combination of the Standard Weights||g||325, 1200, 2160, 3800, 5000|
|Power Supply||220V±10%, AC, 50HZ, 3A|
|Cut-off device||Automatic/Jog/Manual cut-off|
|Load (g)||Combination of dead weight (g)|
|325||T-shape weight tray and the weight of piston|