Characteristics, structure, working environment and operating steps of melt flow rate meter

Melt flow rate meter is also called a melt index meter used to determine the MFR value of the melt flow rate of various plastics and resins in a viscous state. It is suitable for engineering plastics such as polycarbonate, polyaryl sulfone, fluoroplasty, nylon and other high melting temperatures, as well as for plastics with low melting temperatures such as polyethylene (PE), polystyrene (PS), polypropylene (PP), ABS resin, polyformaldehyde (POM), and polycarbonate (PC) resin. The MFI melt flow rate meter is especially suitable for use in colleges and universities, scientific research units, various quality inspection institutions, plastic manufacturers, plastic products and petrochemical industries. It is widely used in plastic production, plastic products, petrochemicals and other industries, as well as related colleges, scientific research institutions and commodity inspection departments. Below, our company will briefly describe the characteristics, structure, working environment and operating steps of the melt flow rate meter:

1. The melt flow rate meter has the following characteristics:

1. The heating speed is fast and the overshoot is extremely small.

2. High constant temperature accuracy.

3. After the filler, the constant temperature can be quickly restored.

4. Manual and automatic testing methods can be used.

5. The test parameters are easy to calibrate and correct.

6. Equipped with a printer.

7. This machine is at the leading level in the country.

2. Melt flow rate meter structure: This instrument consists of a plastic extrusion system, a temperature control system, a temperature measurement system, and an automatic material cutting system.

1) Plastic extrusion system

The plastic extrusion system consists of furnace body, heating cylinder, piston, die, weight, rod and other components.

2) Temperature control system

This system has the effect of heating and constant temperature, and the temperature control range is from room temperature to +300℃, and the accuracy is within ±0.5℃.

3) Temperature measurement system

The temperature value can be measured and displayed in real time.

4) Automatic material cutting system

Automatically cut materials according to the set time interval, and the time unit is seconds.

3. The recommended working environment for melt flow rate meter:

Working environment conditions: ambient temperature 10℃-40℃; relative humidity of the environment is 30%-80%; there is no corrosive medium around, no strong air convection; there is no vibration around, no strong magnetic field interference.

4. Operation steps of melt flow rate meter:

(1) Adjust the instrument to level and clean the instrument, workbench and tools.

(2) Turn on the power supply and the indicator light is on, indicating that the instrument has been powered on.

(3) Correct temperature, melt flow rate test, furnace body temperature setting and control are achieved by rotating the constant value control knob. When there is an indicator current for the heating ammeter, it means that the electric furnace is heating. The temperature control knob is generally designed at 50°C per week, and is not fine-tuned at 50 integer multiples.

It uses a high-temperature heating furnace to make the measured object reach a molten state under specified temperature conditions. The object to be tested in this molten state is subjected to an extrusion test through small holes of a certain diameter under a prescribed load. In plastic production, melt index is commonly used to represent the physical properties of polymer materials such as fluidity and viscosity in the molten state. The so-called melt mass flow rate refers to the extrusion amount converted into 10 minutes by the average weight of each stage of the extruded sample. The above-shared introduction to the characteristics, structure, working environment and operating steps of the melt flow rate meter is hopefully helpful to everyone!