Extrusion torque rheometer

Extrusion torque rheometer

Extrusion torque rheometer

Torque: 250Nm BML-400 Capillary Rheometer The rheometer is a computer-controlled intelligent constant pressure capillary rheometer that can operate at constant pressure and speed. It can measure the extrusion speed of various specifications of capillaries under different pressure conditions at different heating rates and temperatures using a computer.

Capillary mold: one core for each mold with a length to diameter ratio of 20:130:140:1 and a diameter of φ 127

Extruders can choose different types of screws based on the characteristics of different materials. The compression ratio of screws has a significant impact on the test performance of materials, and screws can be easily interchanged to support rapid testing of different materials

Control software BML system

Material of material cylinder: tungsten carbide

During the experiment, the temperature remains constant and the piston moves at several different rates to determine the relationship between viscosity, shear rate, and shear force.

1- Compression rod; 2- Feeding port; 3- Mixing room; 4- Leakage of materials; 5- Internal mixer; 6- Emergency brake switch;

Torque measurement accuracy: 01FS

L:D：25：1

These data play an important role in studying the rheological properties of polymers.

The mechanical transmission components of this instrument use imported ball screws, which provide more precise and stable transmission efficiency. With the addition of imported servo control systems and servo motors, the instrument can be used for a longer period of time, with higher precision, durability, and greater satisfaction of user needs.

The main interface integrates multiple functions, including the system menu area, indication display panel, experimental process area, and curve display area.

Due to the viscosity of fluids, they are inevitably subjected to forces from the pipe wall that are opposite in direction to the fluid. By deriving the principles of fluid mechanics processes such as equilibrium between viscous resistance and driving force, the relationship between shear stress and shear rate at the pipe wall, pressure, and melt flow rate can be obtained as follows:

Temperature control module, room temperature~350 ℃, 1 set self-produced

Temperature: 400 ℃

Load test accuracy ± 0.5%

Capillary rheometer can measure performance indicators such as softening point, melting point, flow point, viscosity, viscous flow activation energy, and curing temperature of thermosetting materials of polymers.

Graphic display: speed, torque, temperature, pressure

Capacity: 60ml

Screw type: Parallel and opposite direction twin-screw

The luxury interface testing software under Windows XP operating system can achieve constant speed and constant force control mode, which can meet different testing requirements.

Power output speed: 0150rpm

Refining:

Effective length of screw: 276mm

This instrument is equipped with an imported load force sensor, which ensures high force measurement accuracy, high force value accuracy, and stability.

1 HP inkjet printer

Heating method: electric heating

4 15 30 20 optional

Study on the curing properties of cross-linked thermosetting resin

Measurement accuracy of melt pressure: 05FS

The capillary rheometer adopts load loading, with a reasonable design, computer-controlled and continuous load loading, high control accuracy, and good stability performance.

Rotor type: Roller

Dimensions (L/D) 5/0.5, 10/1, 20/1, 40/1mm

7 20 40 20 optional

Heating total power: 2500W

Screw compression ratio: 25:1

High precision torque sensor 300Nm, 1 joint venture

Teaching and Research Applications

7- Manual panel; 8- Drive and torque sensors; 9- Switch; 10- Computer

Note: The upgraded product has an exquisite and atmospheric appearance, with a more fashionable and beautiful appearance. It is delicate and compact, with the original outer dimensions of 680mm in length, 400mm in width, and 1690mm in height; After upgrading the design, the outer dimensions have been changed to 580mm in length, 320mm in width, and 1213mm in height, with a more beautiful color combination.

Diameter of plug head: φ 11.28-0.012mm-0.05mm

Host HZJ-300A 1 unit

And it can greatly meet user requirements and expand the range of force values. Enable users to have a larger testing range and facilitate the selection of instruments that are more suitable for the experiment.

Temperature: 350 ℃

Record extrusion speed, pressure, and heating temperature through a computer. Automatically processed into viscosity number. Draw the curve and print the complete report.

Heating zone: 5 routes

The twin-screw extruder unit is mainly used for filling, blending, modifying and enhancing chlorinated polypropylene and high water absorbing resin for the devolatilization treatment of rubber and engineering resins; Preparation of insulation materials, sheathing materials, low smoke and low halogen flame-retardant PVC cable materials, and various silane crosslinking materials for granulation cables using degradable masterbatch polyamide, condensed polyurethane, and polymerization reaction extruded carbon powder magnetic powder

A torque rheometer is an ideal device for studying the flow and deformation, plasticization, thermal shear stability, dynamic rheological properties, and plasticization behavior of polymer materials, and representing the results in the form of torque time and torque temperature charts. It can be widely used in scientific research and production, and is an important instrument for conducting scientific research and guiding production. Compared with a general instrument for studying material flowability, a viscosity meter provides a more accurate and reliable dynamic measurement method that is closer to actual processing. It can continuously and accurately measure the rheological properties of materials in situations similar to actual processing, such as the dynamic stability of cross-linked cured elastomers in mixed thermosetting resins of multi-component materials, and the influence of screw speed on the processing performance of the system

Δ P - pressure difference of material flowing through capillary tube kg/cm2

1 screwdriver, market purchase

Speed control accuracy: 005FS

Temperature sensor: K-type thermocouple

Material: 304L

Model BML-400

Figure 3 Various rotors

The capillary rheometer can measure the relationship between shear stress and shear rate of plastic melt in the capillary tube, and can also study the elasticity and unstable flow (including melt fracture) of the melt by changing the aspect ratio of the capillary tube under constant stress or based on the diameter and appearance of the extruded material.

8 60 30

The shear stress of the material flowing through the capillary is:

Main Configuration

1 set of data acquisition module from Japan

Structural features and working principle

Capillary rheometer can measure performance indicators such as softening point, melting point, flow point, viscosity, viscous flow activation energy, and curing temperature of thermosetting materials of polymers.

Temperature control accuracy: ± 1 ° C

Load resolution 100000 yards

The scope of application can be used to study the thermal stability, shear stability, flow and plasticization behavior of thermoplastic materials. The characteristics include the ability to continuously, accurately and reliably measure the rheological properties of the system during similar actual processing, as well as to complete the curing characteristics testing of thermosetting materials

L - the length of the capillary tube, for example, selecting a capillary tube with a length to diameter ratio of 30:1, L=38.1mm

High precision reducer 1:20, 1 imported unit

Plug area 1cm2

The capillary rheometer can draw stress-strain curves and plasticization curves of polymer materials, and measure the temperature of softening point, melting point, and flow point.

And it can greatly meet user requirements and expand the range of force values. Enable users to have a larger testing range and facilitate the selection of instruments that are more suitable for the experiment.

Temperature sensor: K-type thermocouple

Temperature sensor: K-type thermocouple

2 381 30

Measurement range of melt pressure: 01100Mpa

Computer Mouse Keyboard Data Interface 1 branded computer

Deformation resolution 0.01mm

τ=R·P/2L

Screw diameter: 42mm

Where Q - extrusion flow rate cm3/s

The test results can be stored in proprietary format data files for output, avoiding the problem of excessive data volume in traditional formats such as Excel

This instrument is equipped with an imported load force sensor, which ensures high force measurement accuracy, high force value accuracy, and stability.

Draw the curve and print the complete report.

The instrument for rheological properties is generally called a rheometer, sometimes also called a viscometer. Among various instruments for measuring and studying the rheological properties of plastic melts, capillary rheometer is a commonly used and suitable testing instrument, which has multiple functions and a wide range of shear rate capacity.

The mixing process mainly consists of imported servo motors, high-precision dynamic torque sensors, gearboxes, mixing chamber temperature modules, measurement modules, computer measurement and control software, and other components. The principle is shown in Figure 2:

Test chamber electronic heating test chamber, interchangeable material cylinder

Capillary membrane material: tungsten carbide

The price for selecting parallel and opposite twin-screw extruders is negotiable

Temperature range: Room temperature 350 ℃

Test modes include constant speed, constant voltage, and other modes

Motor speed: 3000rpm

Heating total power: 4200W

3 508 40

Deformation accuracy ± 0.5%

Development and Processing Performance Research of Thermoplastic Materials

Dynamic speed ratio 1:40000

1 set of twin-screw L/D40/1 self-produced

Plastic single screw extruder material 38CrMOALA optional price to be discussed separately

Test speed 0.005-20 mm/min

Effective length of screw tube: 276mm

1 127 254 20 standard configuration

1 Japanese Panasonic 30kW servo motor and driver

Heating total power: 1700W

This instrument is controlled by a computer to draw experimental curves, displaying the changes in the curves during testing, and obtaining equation data such as agen poiseuille, Rabinowitz, melt flow rute, etc.

Weight 180 kg

This equipment is equipped with screws of different parameters. At the other end of the rotating cylinder with a certain temperature, there is a feeding hopper. When the raw material is sent to 2/3 of the cylinder, it gradually plasticizes and enters the remaining part of the cylinder, where it is homogenized. When all particles are melted, it can be used as a mother material using a capillary extrusion mold or injected into a mold for forming. At the same time, the equipment also completes the measurement of the relationship between the viscosity, shear rate, and shear stress of the material

Thus, its processing behavior can be measured as a basis for selecting composite formulations, seeking optimal molding process conditions, and controlling product quality; Or provide basic data for auxiliary molding molds and plastic machinery design.

Temperature control accuracy: ± 05FS

Machine volume length x width x height: 1600 x 450 x 1300mm

Z large test capacity 5kN10kN

The mixer platform can perform various experiments such as multi-component thermoplastic material thermal fusion testing, thermosetting material curing performance testing, thermal stability testing, shear sensitivity testing, and material mixing

Accuracy<0.25%

Heater: Heating tube

HAAKE Polylab OS

During the processing and molding of rubber and plastic materials, their flowability is almost always involved. For example, in processes such as extrusion, injection molding, blown film, and rolling, the flowability of the material is very important. The flowability of the material not only affects the processing behavior but also affects the mechanical properties of the final product. For example, molecular orientation has a significant impact on the mechanical properties of the molded product film and fiber, and the type and degree of molecular orientation are mainly determined by the characteristics of the flow field and the flow behavior of the material during the processing

One self-produced 60mL internal mixer

The performance of the temperature control system and control method is conducive to measuring the changes and related properties of polymer materials at different temperatures.

The experimental process area includes motor movement control (up, down, stop), speed display, temperature on/off, constant force value setting, constant temperature setting, and heating rate setting

Power supply 220V, 50/60Hz, 8A　

Material: stainless steel, corrosion-resistant, high temperature resistant

Data zeroing function: It can reset the actual measurement separately.

specific description

1 adjustable wrench, market purchase

Torque measurement range: 0250Nm

The optional prices for other specifications such as 1 and 2 will be discussed separately

Therefore, under the condition of constant temperature and capillary length to diameter ratio (L/2R), the flow rate Q of plastic melt through the capillary tube under different pressures can be measured. By calculating the corresponding shear stress and shear rate from the flow rate and the pressure difference Δ P at both ends of the capillary tube, a set of corresponding τ and can be plotted on logarithmic coordinate paper to obtain the non Newtonian index (n) and the apparent viscosity of the melt (η a); By changing the temperature or altering the aspect ratio of the capillary, the viscous flow activation energy representing the temperature dependence of viscosity can be obtained; And physical parameters that characterize rheological properties, such as the modulus expansion ratio.

Temperature resolution 0.1 ℃

Software package testing software adapted to 2 sets of Win710

The core part of an extrusion capillary rheometer is a set of delicate capillaries with different aspect ratios, usually L/D10/120/130/140/1, etc. Different pressure values are obtained through comparative experiments of different aspect ratios of the mouth mold, while other conditions such as temperature remain unchanged. The viscosity of the material is calculated

The basic principle of capillary rheometer testing is to set an infinitely long circular capillary tube, and the flow of plastic melt in the tube is a stable laminar flow of an incompressible viscous fluid;

Displacement accuracy ± 0.5%

One set of manual cleaning tools for attachments

Heating rate 1-10 ℃/min, continuously adjustable, and capable of rapid heating

Voltage: AC380V75kw

Screw diameter: 20mm

Temperature control: 5 temperature measurement channels, including 4 temperature control channels

Rotor treatment: After high-precision polishing, the surface is chrome plated

Heating cylinder length 200 mm

Among them, R - the inner radius of the capillary tube, where R=0.635 mm

Extrusion capillary rheometer: The extrusion capillary rheometer is mainly composed of an imported servo motor reducer, extrusion screw die measurement and control module, temperature module, pressure sensor, electronic computer, and measurement and control software. Its principle is to measure the shear rate and shear pressure of the material extruded through the die by the rotation of the screw. The computer calculates the viscosity of the material at a specified temperature. At the same time, the extrusion capillary rheometer can also be used as an instrument for production process testing by replacing different types of dies with small amounts of material for actual production and processing. In this process, the production process is verified by controlling extrusion speed, melt temperature, formula ratio, and other means

1 set of hexagonal wrench, market procurement

Reducer: 1:20 imported

Shear rate:=4Q/π R3

Research on Processing Performance and Material Development of UPVC in Application Fields

High precision melt pressure sensor 0-100MPa, 1 unit, Shanghai

The main technical characteristics and configurations can be used to study the thermal stability, shear stability, flow and plasticization behavior of thermoplastic materials. Its feature is that it can continuously, accurately and reliably measure the rheological properties of the system in a similar actual processing process, and can also complete the curing characteristic testing of thermosetting materials

Software: Measurement and control software, polymer melt viscosity measurement data processing software, extruder data processing software, mixer data processing software

The capillary rheometer is used to measure the flowability and curing rate of polymer materials. Measuring the viscosity and viscous flow activation of polymer material melts can also be used to study the process conditions of melt spinning.

Serial number, model, quantity, manufacturer

Material cylinder diameter 11.28 mm: 15mm: 9.5 Choose one

During the testing process, the viscosity displacement curve can be displayed in real-time, and any actual measurement curve can be customized according to customer needs.

A closed mixer is equivalent to a small internal mixer consisting of an ∞ - shaped detachable mixing chamber and a pair of rotors rotating in opposite directions at different speeds. The rotors rotate in opposite directions in the mixing chamber, applying shear to the material and forcing it to mix in the mixing chamber; The speed difference between the two rotors causes dispersion mixing in their gap. The overall appearance of the machine is beautiful, and the main body sheet metal adopts a color scheme of milky white and blue. The stainless steel part can also be processed according to the user's color requirements, and SUS304 stainless steel is used

Feature Overview

Modular design of sample data editor with one-time input and permanent nine call: providing users with the freedom to set the required application sample data.

Capillary specifications:

Overview of BZJ-500 Torque Rheometer Product Features

Motor power: Panasonic 30kw servo motor from Japan

Temperature control accuracy display<± 0.5 ℃

Heating zone: 3 routes

If you are looking for a precise melt index analyzer, you may consider using a capillary rheometer.

Choose a pressure sensor capacity of 1000 bar, 700 bar, or 1400 bar

A typical melt index meter only measures a point on the shear rate/viscosity curve and can only evaluate the flowability or average molecular weight of materials, while a capillary rheometer can measure the changes in material viscosity with temperature and pressure.

Heating method: electric heating

2 sets of self-produced cleaning tools

Speed ratio: 3:2

Cylindrical die options: Inner diameter: 5, Outer diameter: 10