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SFT-4000超高真空摩擦磨损试验仪

来源:  华汇仪器   作者:  管理员   时间:  2020-03-23 15:09  点击:  

SFT-4000超高真空摩擦磨损试验仪主要模拟航天、航空等特殊环境下,材料在高真空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高真空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。       
工作原理
   超高真空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,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。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超高真空条件下摩擦学特性。

(仪器主机)

         

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             (控制柜)                    (试验曲线)                                    (分析曲线)


SFT-4000 Ultra-high Vacuum Friction Wear Tester


SFT-4000 Ultra-high Vacuum Friction Wear Tester is mainly used to simulate the friction and wear of materials under the special environment of aerospace and aviation. It is used to evaluate the tribological properties of metal alloys, ceramics and composites in high vacuum and different atmospheres. Its working mode is dry friction of bolt (ball) - disc and friction in case of solid lubrication.

 

This tester uses a vacuum pump to vacuum the vacuum environment laboratory and remove unnecessary gas and moisture. Through the magnetic transmission technology, the friction experiment between the bolt (ball) - disk is realized and the change of friction coefficient of materials is detected. By using the computer control technology, the load is applied to the bolt (ball) through the weight loading mechanism to act on the surface of the sample. At the same time, the sample is fixed on the test platform and rotated 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 under ultra-high vacuum are obtained.

 

Key technical parameters

1. Chamber size: Φ400mm × 600mm

2. Ultimate vacuum:5.0×10-7Pa  Different atmosphere can be introduced

3. Load: 10001500g

4. Shaft rotation speed: 101500 r/min

5. Friction coefficient accuracy:1%F.S

6. Friction balls size: Φ36 mm

7. Stage size: Φ70 mm

8. Rotation radius: 320 mm

9. Stage height variation range: 025 mm

10. 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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