供应

高分子材料毛细管流变仪  采用负荷加载，设计合理，计算机控制并实现负荷连续加载，控制精度高，稳定性能好。毛细管流变仪可绘制高分子材料的应力应变曲线、塑化曲线，测定软化点、熔融点、流动点的温度。并绘制曲线，打印完整报告单。

高分子材料毛细管流变仪  主要技术参数：    　

①　最大试验容量　5kN10kN 

②　测试速度　0.005-20 mm/min

③　负荷测试精度    ?0.5%

④　负荷分辨率100000码

⑤　位移精度    ?0.5%

⑥　变形精度    ?0.5%

⑦　变形分辨率    0.01mm

⑧　动态速度比　1:40,000

⑨　最高测试温度　400?C   

⑩　温度控制　PID控制，解析度0.1?C，误差度<?O.5?C

?　升温速率1-10℃/min，连续可调，并可快速升温

?　控温精度显示<?0.5℃  

?　温度分辨率0.1℃

?　料筒直径　11.28 mm：15mm：9.5  择一

?　加热料筒长度　200 mm

?　料筒材质    碳化钨

?　测试膛　电子加热测试膛，抽换式料筒

?　压力传感器　容量择一　1000bar700 bar1400bar  

?　精度　< 0.25%

?　材质　不锈钢、可抗腐蚀、耐高温

21　毛细管 口膜材质　碳化钨

22　尺寸（L/D）　5/0.5、10/1、20/1、40/1mm  

23　塞头直径φ11.28 -0.012mm-0.05mm

24　塞头面积1cm2

25　测试模式　恒速、恒压、等模式

26　控制软体　BML系统

27　电源　220V，50/60Hz，8A　

28　重量　180 kg

The capillary rheometer adopts load loading, with reasonable design, computer control and continuous load loading, high control accuracy, and good stability performance. 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. Draw the curve and print the complete report.

Main technical parameters:

①Maximum test capacity 5kN 10kN

②Test speed 0.005-20 mm/min

③Load test accuracy?0.5%

④Load resolution 100000 yards

⑤Displacement accuracy?0.5%

⑥Deformation accuracy?0.5%

⑦Deformation resolution 0.01mm

⑧Dynamic speed ratio 1:40000

⑨Maximum test temperature 400?C

⑩Temperature control PID control, resolution 0.1?C, error<?0.5?C

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

?Temperature control accuracy display<?0.5℃

?Temperature resolution 0.1℃

?Material cylinder diameter 11.28 mm: 15mm: 9.5, choose one

?Heating cylinder length 200 mm

?Material of material cylinder: tungsten carbide

?Test chamber electronic heating test chamber, replaceable material cylinder

?Select a pressure sensor capacity of 1000bar, 700 bar, and 1400bar

?Precision<0.25%

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

21 Capillary Mouth Membrane Material Tungsten Carbide

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

23. Plug diameter: diameter of 11.28-0.012mm-0.05mm

24 plug area 1cm2

25 testing modes: constant speed, constant voltage, etc

26 Control Software BML System

27 power supply 220V, 50/60Hz, 8A

28 Weight 180 kg

配置名称

1．试验主机 一套

2．高精度控温表 一块

3．进口伺服控制系统 一套

4．进口伺服电机 一台

5．数据采集系统 一套

6．数据处理系统 一套

7．高精度传感器 一只

8．专用出料模口

9．5/1、10/1、20/1、40/1mm（标配）各一件

10．专用口膜托件 一只

11．品牌计算机一套

12．彩色喷墨打印机 一台

13．专用试验软件 一套

14．专用工具 一套

15．说明书 一份

16．保修卡 一份

17．合格证书 一份

试验原理

       毛细管流变仪测试的基本原理是：设定一个无限长的圆形毛细管中，塑料熔体在管中的流动为一种不可压缩的粘性流体的稳定层流流动；由于流体具有粘性，它必然受到来自管壁与流体方向相反的作用力。通过粘滞阻力应与推动力相平衡等流体力学过程原理的推导，可得到管壁处的剪切应力和剪切速率与压力、熔体流速的关系如下：

材料流经毛细管时的剪切应力为： 

               τ=R?⊿P/2L                                    

 （1）其中  R—毛细管的内半径，这里   R=0.635 mm          

          ⊿P—材料流经毛细管的压力差kg/cm2          

          L—毛细管的长度，例如选择长径比为30：1的毛细管，L=38.1mm

剪切速率为： =4Q/πR3                      

(2)其中 Q—挤出流量cm3/s

由此，在温度和毛细管长径比（L/2R）一定的条件下，测定不同的压力下塑料熔体通过毛细管的流动速率Q，由流动速率和毛细管两端的压力差⊿P，可计算出相应的剪切应力和剪切速率，将一组对应的τ和在对数座标纸上绘制流动曲线，即可求得非牛顿指数（n）和熔体的表观粘度（ηa）；改变温度或改变毛细管长径比，则可得到代表粘度对温度依赖性的粘流活化能；以及离模膨胀比等表征流变特性的物理参数。

Configuration Name

1. One set of test host

2. A high-precision temperature control meter

3. One set of imported servo control system

4. One imported servo motor

5. A set of data collection system

6. A set of data processing system

7. One high-precision sensor

8. Special discharge mold port

9.5/1, 10/1, 20/1, and 40/1mm (standard) each, one piece

10. One specialized mouth film holder

11. A set of branded computers

12. One color inkjet printer

13. One set of specialized testing software

14. One set of special tools

15. One instruction manual

16. One warranty card

17. One certificate of conformity

Experimental principle

The basic principle of capillary rheometer testing is to set an infinitely long circular capillary tube, where the flow of plastic melt in the tube is a stable laminar flow of incompressible viscous fluid; Due to the viscosity of the fluid, it is inevitably subjected to forces from the pipe wall in the opposite direction of the fluid. By deducing the principles of fluid mechanics processes such as the balance 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:

The shear stress when the material flows through a capillary tube is:

τ=R?⊿P/2L                                    

(1) Where R - the inner radius of the capillary, here R=0.635 mm          

ΔP - Pressure difference of material flowing through capillary tube, kg/cm2

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

The shear rate is:=4Q/πR3

(2) Where Q - extrusion flow rate cm3/s

Therefore, under certain conditions of temperature and capillary length to diameter ratio (L/2R), the flow rate Q of plastic melt passing through the capillary under different pressures can be measured. Based on the flow rate and the pressure differenceΔP at both ends of the capillary, the corresponding shear stress and shear rate can be calculated. A set of correspondingτand flow curves can be plotted on logarithmic coordinate paper to obtain the non Newtonian index (n) and the apparent viscosity of the melt (ηa); By changing the temperature or the length to diameter 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 expansion ratio of the mold.

1、启动操作应用软件。

2、输入实验报告信息。

3、添加数据文件及输入实验参数,进行试验操作。

4、筛选数据。查看筛选的数据，检查数据的有效性和合理性。

5、显示曲线，显示数据。

6、试验结束，打印保存数据及曲线。

7、关闭系统。

Data processing

1. Start the operating application software.

2. Enter experimental report information.

3. Add data files and input experimental parameters for experimental operations.

4. Filter data. View the filtered data and check its validity and reasonableness.

5. Display curves and data.

6. After the experiment is completed, print and save the data and curves.

7. Turn off the system.

Features and advantages:

1、The maximum load of the equipment can be selected as 5 kN or 10 kN test forces, providing a larger range of test force space to meet more test requirements; And provide 8 types of experimental discharge port films for selection, and provide more complete accessories for various material research. High control accuracy (constant temperature, constant force, constant speed), minimizing control errors and providing customers with accurate testing data.

2、The real-time acquisition system uses imported chips from the United States for more efficient data collection, with a large amount of data transmission per unit time, ensuring delicate and accurate curves.

3、This instrument uses imported sensors from the United States to achieve more precise force value accuracy and more accurate measurement results.

4、The instrument is a desktop computer; The exquisite appearance, the use of imported servo motors, servo systems, and imported ball screws make the transmission noise minimal, and the displacement accuracy more precise and efficient. It can be comparable to imported machines from abroad.

5、The proprietary format file storage is superior to traditional methods of storing data with a smaller amount. The interface design is friendly, and the layout of each functional area is clear, making it convenient for users to operate.

6、Users can edit suitable test methods based on specific samples, making it very convenient to complete the testing function

7、Multiple combinations of curves can be used to achieve "displacement" versus "viscosity" curves for different polymer materials at the same temperature. Users can communicate and customize the control software

8、Equipped with overload protection and limit protection, providing safety guarantee for smooth operation of equipment.

特点和优势：

一、该设备最大负荷可选5 kN、10kN试验力，更大范围的提供试验力空间，满足更多的试验要求；并提供可供选择试验出料口膜8种，针对材料的各种研究提供配件更齐全。控制精度高（恒温，恒力，恒速），最大程度减少控制误差，为客户提供精准的测试数据。

二、实时采集系统采用美国原装进口蕊片采集比更高效，单位时间内数据传输量大，保证曲线细腻准确。

三、该仪器采用进口美国世铨传感器使得力值精度更加的精确，使测得结果更准确。

四、该仪器为台式机；精美的外观、采用进口伺服电机、伺服系统、进口滚珠丝杠使得传动燥音极小，位移精度更精确，高效。可以与国外进口机器相媲美。

五、专有格式文件存储，优于传统方式存储数据量过小。界面设计亲和，各功能区布局清晰，方便用户操作。

六、用户可以根据具体试样自行的编辑适合的试验方法，可以非常方便地完成试验功能

七、曲线多种组合方式、可实现同温度下，不同高分子材料的“位移”对“粘度”曲线、控制软件用户可沟通定制

八、设有过载保护、限位保护，为设备流畅运行提供安全保障。