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Modified test method for wear life model parameters of rubber O-ring seals

A technology of O-ring sealing and wear life, which is applied in the direction of testing wear resistance, etc., can solve the problem of no reliable reference basis and standards for selection and correction, and achieve the effect of true and reliable ambient temperature, effective prediction, and avoidance of damage and failure

Active Publication Date: 2021-05-07
CHINA AERO POLYTECH ESTAB
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  • Description
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Problems solved by technology

[0003] Traditionally, Archard is usually used as the wear model, but under the conditions of different materials, loads and relative motion speeds, there is no reliable reference basis and standard for the selection and correction of parameter K

Method used

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  • Modified test method for wear life model parameters of rubber O-ring seals
  • Modified test method for wear life model parameters of rubber O-ring seals
  • Modified test method for wear life model parameters of rubber O-ring seals

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Embodiment Construction

[0049] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] According to the correction test method of rubber O-type sealing ring wear life model parameters of the present invention, it comprehensively considers the influence of material level factors, and carries out parameter correction to O-type seal ring wear life model, such as Figure 1 to Figure 3 As shown, the specific steps are as follows:

[0051] Step 1: Carry out the material characteristic test of the sealing member, respectively carry out the hardness test, the swelling test and the friction coefficient test;

[0052] Step 2: Carry out a test to determine the life of the sealing ring to obtain the number of cycles when the sealing ring fails;

[0053] Step 3: Carry out the life model parameter correction test of the sealing ring, carry out the wear life test according to the load spectrum, and obtain the change law of the wear amount of the sealing ring ...

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Abstract

A kind of correction test method of wear life model parameter of rubber O-type sealing ring, its concrete steps are as follows: step 1, carry out the material characteristic test of seal, material characteristic test comprises hardness test, swelling test and friction coefficient test; Step 2, Carry out the seal ring life determination test, obtain the number of cycles when the seal ring fails, and determine the wear amount of the failed seal ring; Step 3, carry out the seal ring life model parameter correction test, based on the dynamic seal wear life test, get the wear amount of the seal ring with the The change law of time is based on the number of failure cycles to determine the detection step cycle of the parameter correction test. Under different materials, the speed and load are explored respectively, so as to realize the correction of the parameter K.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment reliability and life prediction, in particular to a test method for modifying wear life model parameters of rubber O-shaped sealing rings. Background technique [0002] Rubber O-rings are a typical application of sealing rings, and friction and wear are the main factors leading to the failure of rubber sealing rings. The linear reciprocating sealing ring is always in the friction process of sliding relative to the metal surface. Rubber and other materials will wear during the mutual friction process. It is under different friction conditions that different types of wear occur. The size of the friction coefficient not only determines the type of wear with different severity, but also the intensity of each kind of wear is directly related to the friction coefficient. At the same time, the material hardness and relative movement speed of the seal will also indirectly affect the life of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56
CPCG01N3/56
Inventor 刘浩阔边智孟理华孙胜刘漪纹杨俊斌黄爽
Owner CHINA AERO POLYTECH ESTAB
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