Multifunctional micro-tribology test machine and method for evaluating friction or adhesiveness of materials by using same

Abstract

The invention provides a multifunctional micro-tribology test machine with a novel structure. A frictional or adhesive dual sample loading device comprises a high-precision small stepping motor, a lead screw, a lifting sliding block and a cantilever beam and further comprises a fine-adjustment bracket; the lifting sliding block is provided with a screw hole; the cantilever beam is provided with a frictional or adhesive dual sample; and the fine-adjustment bracket is arranged over the cantilever beam and provided with laser and a four-quadrant light spot position detector. Due to the cooperation of the laser and the four-quadrant light spot position detector, the frictional or adhesive force acted between the frictional or adhesive dual sample and the sample surface can be converted into the micro shifting of the light spot emitted into four-quadrant light spot position detector on the four quadrant so that the friction or adhesiveness of the sample can be tested through the light intensity difference of the four quadrant. Compared with the prior art, the multifunctional micro-tribology test machine has a simple and compact structure and can be used for testing the micro friction or adhesiveness in the load range of milli-newton or micro-newton through the cantilever beam with low force constant.

Description

technical field [0001] The invention relates to the technical field of material surface friction and adhesion performance, in particular to a multi-functional micro-tribology testing machine capable of testing material surface friction and adhesion performance in the range of millinew and micro-newton loads, and using the testing machine to evaluate material surface friction , Adhesive performance method. Background technique [0002] There are many domestic and foreign products of testing machines for evaluating the friction and wear properties of materials within a large load range (cow level), such as UMT in the United States, MS-R4000 of Lanzhou Institute of Chemical Physics, etc. Most of these traditional friction and wear testing machines consist of horizontal reciprocating or Rotary mechanical moving parts (control the movement of the sample stage), vertical up and down mechanical moving parts (control the movement of the cantilever beam), strain-sensitive cantilever ...

AI Technical Summary

Problems solved by technology

[0004] The technical purpose of the present invention is to provide a multifunctional testing machine capable of testing material surface adhesion, friction and durability in the range of millinew and micronew loads in view of the technical status of the above-mentioned friction testing machine, so as to solve the problem of the existing traditional friction testing machine. Inability to perform experimental measurements of friction and adhesion under small loads, and the vulnerability of expensive strain-sensing cantilever beams

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