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MS-ECT3000旋转电化学腐蚀摩擦磨损试验仪

来源:  华汇仪器   作者:  管理员   时间:  2020-03-14 16:23  点击:  

MS-ECT3000旋转电化学腐蚀摩擦磨损试验仪针对材料表面及薄膜在不同载荷、不同转速在腐蚀液体中进行旋转运动形式的摩擦性能和耐磨强度进行定量评价。主要模拟海、江湖、河及人体体液中的腐蚀摩擦状态。


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工作原理

MS-ECT3000旋转电化学腐蚀摩擦磨损试验仪运用球-盘之间摩擦原理及微机自控技术,通过砝码或连续加载机构将负荷加至球上,作用于试样表面,同时试样固定在测试平台上,并以一定的速度旋转,使球摩擦涂层表面。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变化曲线。                        

                         μ=F/N

  μ—摩擦系数

  F—摩擦力

  N—正压力(载荷)

样品至于样品槽内,通过工作电极和参比电极可以得到摩擦过程中电化学腐蚀变化。

通过摩擦系数曲线的变化得到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称重法得到材料表面磨损量。


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(试验曲线)


MS-ECT3000 Rotary Electrochemical Corrosion Friction Wear Tester


MS-ECT3000 Rotary Electrochemical Corrosion Friction Wear Tester is designed for evaluating the rotating friction and wear performance of materials and films running in corrosive solutions with variation of load and rotating speed. It is mainly used for the measurement of the friction and wear measurement under corrosive solution, mainly simulating the conditions of sea, river, lake, and body fluid.


Based on the ball-on-disk friction principle and the auto-control technology, the samples are fixed on the MFT-EC4000 Reciprocating Electrochemical Corrosion Friction Wear Tester and the weight or variable loading mechanism was applied on the friction ball. According to the principle of eccentricity, the sample is rotated at a fixed speed. The curve of the friction coefficient will be obtained by processing the data of friction signal transformed via the A/D converter.
                             μ=F/N
                             μ—friction coefficient
                             F—friction force
                             N—normal load
Friction properties and abrasion resistance of the material or film will be obtained through the change of the friction coefficient curve, i.e., 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.

 

Electrochemical workstation test components include the electrochemical workstation and liquid tank. The sample is put into the sample vessel and the electrochemical changes in the friction process will be detected through the working electrode (the underneath counterpart as contact electrode) and the reference electrode.

 

The high-temperature friction and wear test can be conducted by heating the sample (or tank) with a set temperature.

 

The controlled atmosphere components extract gas through vacuum pumps and gasesN2He and etc. are passed in so that samples could be tested in different atmospheres.


The section area of wear scar will be obtained directly by measuring the wear depth using the detection component of the wear loss.
   

Key technical parameters:
1.Loading:100~2000g   balancing weight load

2.Friction measurement range:0~10N

3.Friction measurement accuracy:0.05%F.S

4.Stage rotation speed:1~3000 r/min, accuracy±1r/min

5.Rotation radius:5~10 mm

6.Electrochemical test Rotating speed:1~200 r/min, accuracy±1r/min

7.Stage height variation range:0~20mm

8.Mating materials diameter: Φ3 mm, Φ4 mm, Φ5 mm, Φ6 mm
9.Friction pair materials: GCr15 steel ball, AlO ceramic ball, ZrO ceramic ball, SiN ceramic ball

10.Test operation: keyboard operation, microcomputer control

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

12.Electrochemical workstation test components:
    Hardware specifications:
    The potentiostat controlled range: ± 10V;
    The continuous current controlled range: ± 2.0A;
    Potential control accuracy: 0.1% × full scale reading is ± 1mV;
    The current control accuracy: 0.1% × full scale readings;
    Potential resolution: 10μV (> 100Hz) 3μV (<10Hz);
    The current sensitivity: 10pA;
    Potential rising time:<1μS (<10mA) <10μS (<2A);
    Reference electrode input impedance: 1012Ω | | 20F;
    Current range: 2A ~ 200nA, 8 gears;
    Tank voltage: ± 21V;
    Maximum output current: 2.0A;
    Scanning rate of CV and LSV: 0.01mV ~ 10000V / s;
    Pulse width of CA and CC: 0.0001 ~ 65000s;
    Current scanning increment: 1mA @ 1A/mS;
    Potential incremental of potential scanning: 0.1mV @ 1V/mS;
    SWV frequency: 0.001 ~ 100 KHz;
    Pulse width of DPV and NPV: 0.0001 ~ 1000s;

    AD data acquisition: 16bit @ 1MHz, 20bit @ 1 KHz;
    DA Resolution: 16bit, set-up time: 1μS;
    Minimum potential incremental of CV: 0.075mV;
   IMP frequency: 10μHz ~ 115 KHz(CS350);
   Low-pass filter: 8 segments programmable;
   Current and potential range: Automatic setting;
   Interface communication mode: USB2.0;
   Electrochemical impedance function indicators:
   Signal generator:
    Frequency response: 10 mHz ~ 115 KHz (CS350);
    AC signal amplitude: 0mV ~ 2500mV;
    DC bias: -10 ~ +10 V;
    The DDS output impedance: 50Ω W;
    Waveforms: sine wave, triangle wave, square wave;
    Sine wave distortion:<1%;
    Scanning mode: the log / linear, increase / decrease;
    Maximum load capacitance: 1nF; maximum load inductance: 10μH;

    Signal Analyzer:
    Integration time: Minimum: 10mS or a cycle for a long time;
    Maximum: 106 cycles or 105S;
    Measuring time delay: 0 to 105 seconds;
    DC offset compensation:
    The potential automatic compensation range:-10V ~ +10 V;
    Current compensation range:-1A~ +1 A;
    Bandwidth adjustment (Bandwidth): set automatically or manually, total eight gears adjustable;




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


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