| Customization: | Available |
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| After-sales Service: | Online-Service |
| Warranty: | 1 Year |
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JW-50F Touch screen controlled voltage breakdown tester
,Scope of application
Torque rheometer is an ideal equipment to study the flow and deformation, plasticization, thermal shear stability, dynamic rheological properties and plasticization behavior of polymer materials and show the results in the form of torque-time and torque-temperature,and the mixing of multi-component materials, the cross-linking curing of thermosetting resins, the vulcanization of elastomers, the dynamic stability of materials and the influence of screw rotating speed on the processing performance of the system, etc. It can be widely used in scientific research and production, laboratory simulation in the mixing, extrusion process, a series of data to guide the reality of formula research and production, can be similar to the actual processing, continuous, accurate, reliable to determine the rheological properties of the material.
,Product function
It has modular design and ready-to-use function: the host is the control center, which has the function of driving and controlling the measuring unit; the controlled auxiliary units (such as mixing units and extrusion units) are intelligent measuring units for specific applications, which can transmit the measurement data to the host through the bus system. It can be equipped with various auxiliary units to complete laboratory simulation experiments for different purposes.
,Instruction of Building Block Parallel Twin Screw Extruder
Building Block Twin Screw:It is composed of screw elements with different numbers and functions, which are installed on a keyed or hexagonal mandrel according to certain requirements and sequence. According to the processed materials and different process requirements, different quantities and different types of screw components and their best combinations can be selected for extrusion processing. In this way, limited screw elements can be used to meet different requirements through different combinations, thus solving the contradiction between the versatility of processing needs and the specificity of the machine.
(1) Screw combination
The screw of twin-screw extruder generally adopts building blocks or combined types in mechanical structure.This makes the screw configuration, barrel structure, length-diameter ratio, the position and number of the feeding port and vacuum exhaust port of the twin-screw extruder need to be adjusted according to the changes in the material system and process requirements, in order to achieve the unity of universality and specificity.
Twin-screw extrusion process: feeding, solid conveying, melting, mixing, exhaust, conveying and other functional segments.
Different functional sections require different local screw configurations to adapt to them and achieve different functions. The design of screw combination configuration is an important and difficult issue, because it is related to many factors, such as the properties of the processed materials and the formulation design, the operating conditions and the performance of the screw elements. This combination is also a special technology and know-how. There is no formula to follow. Generally, it is necessary to understand the performance of various screw elements and material properties, and design through a combination of experience, theory and experiment.
(2)Screw elements
If the material conveying process in a twin-screw extruder is divided into solid conveying zone, melting zone and melt conveying zone like the conveying process in a single-screw extruder, then corresponding to the phase change of the material during the extrusion process, a whole screw can be decomposed into different functional segments, and different functional segments use the same geometric structure to complete their functions. The screw segments that can achieve different functions are called screw elements. According to the different functions achieved, screw elements can be divided into conveying elements (composed of forward thread elements, with different numbers of screw heads and leads), pressure building elements (mainly reverse thread elements), shearing elements (kneading disks and their combinations), mixing elements (mainly toothed disk elements), etc.
Building block threaded element
,Performance parameter
4.1,Measurement and control host
| .Manufacturing and inspection standards of products 1,GB/T1408.1-2006Electrical strength of insulating materials -Test methods - Part 1:Tests at power frequencies 2,GB/T1408.2-2016Insulating materials -Test methods for electric strength -Part 2:Additional requirements for tests using direct voltage 3,JJG 795-2016 Withstanding Voltage Testers .Applicable test method standards 1,GB/T1695-2005 Rubber, vulcanized - Determination of electrical breakdown strength and voltage resistant at commercial power frequency 2,GB/T3333-1999Cable paper-Determination of electrical strength at power frequence 3,GB/T12913-2008Capacitor tissue paper 4,ASTM D149Test method for dielectric breakdown voltage and dielectric strength of solid electrical insulating materials at commercial power frequencies . Scope of application It is mainly applicable to the test of breakdown strength and withstand voltage time of solid insulating materials such as wire sleeve, resin and adhesive, impregnated fiber products, mica and its products, plastics, film composite products, ceramics and glass under power frequency voltage or DC voltage; The instrument is controlled by computer, which can quickly and accurately collect and process various data in the test process, and can access, display and print. .Main technical indicators 1.Input voltage :AC220V 50Hz 2.Output voltage :AC:0~50kV; DC:0~50kV 3.Output power :3kVA 4.Measuring range :AC:0~50kV; DC:0~50Kv 5.Measuring error :≤ 1%F.S 6.Boosting rate :0.02kV/s~10kV/s 7.Withstand voltage time :0~4h (No load withstand voltage) 8.Leakage current :1~30 mA (Can be freely set by touch screen) 9.Power Supply :Single phase AC voltage of 220V ± 10% and frequency of 50Hz ± 1% 10.Test environment :Temperature:15 ~ 30 ºC; relative humidity: 30% ~ 65%, which can operate stably 11.Equipment dimension(L*W*H):925*530*1380mm Packed dimension:1200*940*1380mm 12.Equipment weight :107kg Packed weight:167kg 13.Grounding requirement :The instrument needs to be grounded separately.The grounding must comply with national standards: the metal rod should be buried at least 1.5m underground. |
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Measurement and control software:
4.1.14,Data acquisition rate:50/S More subtle changes in torque, temperature and speed can be recorded
4.1.15,High speed acquisition.The temperature torque data curve can be amplified to observe the real-time transition change.
4.1.16,Polymer melt viscosity measurement data processing software
4.1.17,Extruder data processing software
4.1.18,Mixer data processing software
4.1.19,Equipment dimension:(L*W*H)900*440*1130mm Packed dimension:1060*770*1590mm
4.1.20,Equipment weight:105kg Packed weight:135kg
4.2,Mobile mixer(60ml)
4.2.3,Mixer capacity: 60ml
4.2.4,Material: 4Cr13
4.2.5,Rotor type: Roller,Standard (Matching of Banbury,Cam,Delta,Sigma)
4.2.6,Rotating speed ratio: 3:2
4.2.7,Max temperature: 350ºC
4.2.8,Max torque: 200Nm
4.2.9,Heating method: Electric heating
4.2.10,Temperature sensor: K-type thermocouple
4.2.11,Heating zone: 3way(4 way temperature measurement)
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