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HL-R7000重载往复摩擦磨损试验仪

来源:  华汇仪器   作者:  管理员   时间:  2020-04-01 08:46  点击:  


HL-R7000重载往复摩擦磨损试验仪针对材料表面及薄膜在不同条件下的摩擦性能和耐磨强度进行定量的评价。

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HL-R7000重载往复摩擦磨损试验仪,将试样置于重载环境下实现栓—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,通过自动加载机构将负荷加至试样上,作用于测试表面,同时试样固定旋转轴上,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高速条件下摩擦学特性。

μ=F/N

μ—摩擦系数

F—摩擦力

N—正压力(载荷)

通过摩擦系数曲线的变化和温度设定曲线得到在重载环境下材料或薄膜的摩擦性能和耐磨强度,即在特定载荷下,经过多长时间(多长距离)摩擦系数会发生变化,此时薄膜被磨损并通过轮廓仪或称重法得到材料表面磨损量。




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(试验曲线)



HL-R7000 High Load Reciprocating Friction Wear Tester


HL-R7000 High Load Reciprocating Friction Wear Tester is designed for the evaluation of the friction and wear performance of a material under high load.

 

This tester is used to test the friction between the bolt-on-disk under heavy load, and to detect the change of friction coefficient of materials.And uses the ball-on-disk friction principle, the technology of program temperature control system and Vacuum pumping system technology.At the same time, the sample is fixed on the test platform under the high temperature environment and rotates at a certain speed to make the surface of the ball friction coating.The friction coefficient curve and temperature setting curve can be obtained by calculating the friction signal obtained from the sensor, amplified and processed by the input computer through A / D conversion.

μ=F/N
μ—friction coefficient
F—friction force
N—normal load

Through the change of friction coefficient curve and temperature setting curve, the friction performance and wear resistance of materials or thin molds in high temperature and high load are obtained. under a specific load, after a certain time (certain distance), the friction coefficient will be changed, in that moment, the film is worn out and the wear volume will be obtained by the weighing method. 

 

Key technical parameters

1. Load: 0~1800 N, error ±1% F.S 

2. Line speed: 0.5~10m/min, error ±5%F.S

3. Test temperature: room temperature~300 ℃, error ±2 ℃   multi-step heating stage

4. Maximum reciprocating frequency: 25Hz

5. Maximum reciprocating distance: 18 mm

6. Maximum shaft sample:Φ50 mm

7. Sample size:(70-75)×(40-60)×(5-15)mm

8. axis movement range:0~80mm

9. 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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