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Abrasion test method for determining rational hardness pairing of friction pair

A test method and friction pair technology, applied in the direction of testing wear resistance, etc., can solve the problem of not considering the influence of material hardness on friction and wear, and achieve the effect of feasible and effective method, easy implementation and convenient operation.

Inactive Publication Date: 2010-05-05
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0009] Although this method can be used to compare the wear resistance between different materials, that is, it can be used for the screening of wear-resistant materials, but because the material pairing in the testing process of this method is not the material pairing of parts in actual use, and this method The influence of material hardness pairing friction and wear is also not considered, so this experimental method cannot be directly applied to the determination of a reasonable hardness pairing of friction pairs

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  • Abrasion test method for determining rational hardness pairing of friction pair
  • Abrasion test method for determining rational hardness pairing of friction pair
  • Abrasion test method for determining rational hardness pairing of friction pair

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto. The steel straight-profile toroidal worm pair in the mechanical track adjuster used by tracked vehicles, the worm and worm gear materials are made of alloy steel. When the pair of steel worm gear pairs adjust the tightness of the track, they are in the low-speed and heavy-load rotation condition; when there is no need to adjust the tightness of the track, there is a fretting state on the tooth surface. In actual use, often due to excessive wear on one side of the steel worm gear pair, the entire steel worm gear pair cannot reach the expected service life, so choosing a reasonable hardness pair is one of the methods to prolong the life of the worm gear pair.

[0027] The following are the specific steps of the wear test method for reasonable hardness matching of steel worm gear...

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Abstract

The invention discloses an abrasion test method for determining rational hardness pairing of a friction pair; the abrasion test method comprises: the material A and the material B which form the rational hardness pairing of the friction pair are determined, and then an upper sample A and a lower sample B, and an upper sample B and a lower sample A are respectively tested to obtain abrasion loss, and then the abrasion loss is compared, the relative abrasion performance is calculated, and then the rational hardness pairing of the friction pair is determined. The test method takes the factors of the friction pair such as material pairing, hardness pairing, contact type, motion mode, speed, contact stress, lubrication state, operation environment and the like into account, the disadvantages that the existing method does not take the material pairing and the hardness pairing into account are overcome, and the test method can be directly applied to the research and selection of the rational hardness pairing of the friction pair; the operation is convenient, the calculating method is simple and the method for determining the rational hardness pairing of material is feasible and effective.

Description

technical field [0001] The invention relates to a test method for relative wear resistance, in particular to a wear test method for determining reasonable hardness matching of friction pairs. technical background [0002] Relative wear resistance is used to represent the wear resistance of different materials under the same wear conditions, which is defined as the ratio of the wear amount of the standard material to the wear amount of the measured material, which can be expressed as [0003] [0004] Relative wear resistance is a dimensionless parameter. When using it to evaluate the wear resistance of materials or surfaces, to a certain extent, system errors caused by parameter changes and measurement errors during the wear process can be avoided, and the wear resistance of materials can be evaluated more conveniently and accurately, so this parameter is widely used. application. [0005] Existing relative wear resistance test methods such as figure 1 As shown, to eva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
Inventor 邵明周黎明李助军张大童姚巍
Owner SOUTH CHINA UNIV OF TECH
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