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FCT-4000超低温(超导)摩擦磨损试验仪

来源:  华汇仪器   作者:  管理员   时间:  2020-03-14 15:45  点击:  

FCT-4000超低温(超导)摩擦磨损试验仪主要模拟在航天、航空等特殊环境下,材料超低温条件下的摩擦磨损状况。用于金属合金及陶瓷材料和复合材料在超低温环境及不同气氛下的摩擦学性能的评价。其工作方式栓(球)—盘的干摩擦及在有固体润滑时的摩擦。

(仪器主机)

工作原理

        超低温(超导)摩擦磨损试验仪是用真空泵将真空环境试验室抽真空,抽去不必要的气体及水分,再利用液氮将真空试验室的温度降到-180℃以下 , 在低温下通过磁传动技术,实现栓(球)—盘之间摩擦实验,检测材料摩擦系数的变化。实验温度可以从100℃到-180℃,真空度常压-10-4Pa,试验方式为球-盘式。运用计算机控制技术,通过砝码加载机构将负荷加至栓(球)上,作用于试样表面,同时试样固定在测试平台上,并以设定的速度旋转,通过传感器获取摩擦时的摩擦力信号,经放大处理,输入计算机经A/D转换将摩擦力信号通过运算得到摩擦系数曲线。通过摩擦系数曲线的变化,从而得到各种材料在低温条件下摩擦学特性。


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                   (试验曲线)                              (操作面板)                  (接触形式)      

 

      


FCT-4000 Ultra-low Temperature (superconducting) Friction Wear Tester


FCT-4000 Ultra-low Temperature (superconducting) Friction Wear Tester is designed for the evaluation of the friction and wear performance of a material under the simulated environments of aerospace, aviation and ultralow temperature. Particularly, it can be used for evaluating the friction and wear behaviors of metal alloys and ceramic composites under different gas ambient with temperature variation from -180 to 100 ℃.This tester can work in (ball)-disc mode under dry friction as well as with or without solid lubrication conditions.

The tester uses a vacuum pump to vacuum the vacuum environment laboratory, remove unnecessary gases and moisture, and then uses liquid nitrogen to reduce the temperature of the vacuum laboratory to below - 180 ℃. At low temperature, through the magnetic transmission technology, the friction experiment between bolts (balls) - disks is realized, and the change of friction coefficient of materials is detected. By using the computer control technology, the load is added to the bolt (bead) through the weight loading mechanism, which acts on the surface of the sample. At the same time, the sample is fixed on the test platform, and rotates at the set speed. The friction signal is obtained through the sensor. After amplification, the input computer obtains the friction coefficient curve through the calculation of the friction signal through the A / D conversion. Through the change of friction coefficient curve, the tribological characteristics of various materials at low temperature are obtained.

 

Key technical parameters

1. Size of Chamber: Φ400mm × 400mm

2. Test temperature: -180℃~100  

3. Work pressure: < 10-4Pa (different gases)

4. Load: 1500~5000g with resolution of 10g

5. Rotating speed: 10~3000 r/min

6. Rotation radius: 3~20 mm 

7. Accuracy for dynamic friction coefficient: 1%F.S

8. Stage size: 70 mm

9. Stage height variation range: 0 ~ 25 mm

10. Mating materials diameter: Φ3 mm, Φ4 mm, Φ5 mm, Φ6 mm

11. Data processing: the Access, Excel database file, Word experiment report and Jpeg picture can be generated





兰州华汇仪器科技有限公司
Lanzhou Huahui Instrument Technology Co.,LTD. 


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