1purpose:
XNR-400AThe melt flow rate tester is an instrument used to characterize the flow properties of thermoplastic polymers in a viscous flow state, and is used to measure the mass flow rate of the melt of thermoplastic resins（MFR）It is suitable for engineering plastics such as polycarbonate, nylon, fluoroplastics, and aramid with high melting temperatures, as well as polyethylene, polypropylene, polystyrene, and polyoxymethylene resinsABSThe testing of plastics with low melting temperatures such as resins is widely used in industries such as petrochemicals, plastic raw materials, plastic production, plastic products, and related testing departments, research institutions, and colleges.
IIfeature：
XNR-400AThe type of melt flow rate tester is based onJB/T 5456Manufactured according to the standard of "Technical Conditions for Melt Flow Rate Meter", in compliance withGB3682、ISO1133Waiting for standard requirements。It has the advantages of simple structure, easy operation, and easy maintenance; It has functions such as temperature digital display, automatic temperature calibration, time control, manual cutting mode, etc.
IIIMain technical parameters：
1The temperature range of the material cylinder is from room temperature to400℃
2、Temperature control error:±0.5℃(Upper end of discharge port)10mm(Here)
3、Temperature display resolution:0.1℃（100℃below0.01℃）
4Standard mouth moldmaterial：For tungsten carbideΦ2.095±0.005mm
5、Standard mouth mold height：8.000±0.020m
6Inner diameter of material cylinder:Φ9.550±0.025mm
7Piston diameter:Φ9.475±0.015mm
8Piston head length:6.350±0.100mm
9、Measurement range:O.1～250g／10min(MFR)
10Negative Load: Level 7 full load
11Cutting method: time controlled, manual
12Power supply power：450W
4calculation formula
1. The quality method refers to the mass flow rate of the melt, which is converted into 10 minutes of extrusion volume based on the average weight of the material segments divided by unit time. The unit is (g/10min), expressed as MFR:
