YOUKE YK3651 Melt Flow Indexer

YK3651

Melt Flow Indexer

use

Melt flow rate meter is an instrument for determining the flow properties of plastic polymers at high temperature according to the test method of GB3682-2000, which is used in the production and research of polyethylene, polypropylene, polyoxymethylene, ABS resin, polycarbonate and bit.

Structure and working principle

The melt flow rate meter is an extruded plastic meter. It is to use a high-temperature heating furnace to make the analyte reach a molten state under the specified temperature conditions. The analyte in this molten state is extruded through a small hole of a certain diameter under the load gravity of the specified weight. In the plastic production of industrial enterprises and the research of scientific research institutes, the "melt (mass) flow rate" is often used to express the physical properties such as fluidity and viscosity of polymer materials in the molten state. The so-called melt flow index refers to the average weight of each section of the extruded sample converted into 10 minutes of extrusion.

Melt (mass) flow rate meter is expressed in MFR in grams/10 minutes (g/min)

The formula indicates: MFR(θ, mnom) = tref .m/t

where: θ - test temperature

          mnom— Nominal load Kg

          m – the average mass g of the cut

          tref – reference time (10min), S (600s)

          t – the time interval s of cut-off

Standard Test Force (Class 8)

Class 1: 0.325 kg = (piston rod + weight tray + heat shield + weight 1)

=3.187N

Level 2: 1.200 kg = (0.325 + 0.875 weight of 2 gauge) = 11.77 N

Grade 3: 2.160 kg = (0.325 + 1.835 weight of No. 3) = 21.18 N

Grade 4: 3.800 kg = (0.325 + 3.475 weight of No. 4) = 37.26 N

Grade 5: 5.000 kg = (0.325 + 4.675 weight of No. 5) = 49.03 N

Grade 6: 10.000 kg = (0.325 + 4.675 weight of size 5 + weight of 5.000 weight of size 6) = 98.07 N

Grade 7: 12.000 kg = (0.325 + 4.675 weight for No. 5 + 5.000 weight for No. 6 + 2.500 weight for No. 7) = 122.58 N

Grade 8: 21.600 kg = (0.325 + 0.875 weight for No. 2 + No. 1.835 + No. 4 for No. 3.)3.475 + 5 No. 4.675 + 6 No. 5.000 + 7 No. 2.500 + No. 8 2.915 weight) = 211.82 N

The relative error of weight mass ≤ 0.5%.

Precautions

1. The single power socket needs to have a grounding wire hole and be reliably grounded.

2. If there is an abnormal display on the LCD display, it should be turned off first, and then the test temperature should be set again after turning it on, and the work should be started.

3. Under normal operation, if the furnace temperature is greater than 450°C, the software will protect it, interrupt the heating, and send out an alarm.

4. If there is an abnormal phenomenon, such as not being able to control the temperature, not being displayed, etc., it should be shut down and overhauled.

5. When cleaning the piston rod, it cannot be scraped with a hard object

Packing list：Host X1, relay X1, temperature sensor X2, power switch X1, heating sleeve X2, controller X1, mouth mold X1, barrel X1, printer X1

[Note]Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.