A kind of multi-layer structure tinicrnb-based self-lubricating pin material and preparation method thereof

A multi-layer structure and pin shaft technology, which is applied in the field of fasteners, can solve problems affecting the use accuracy and normal operation of mechanical parts, affecting the normal disassembly and assembly of mechanical parts, and pitting on the friction contact surface, etc., to achieve the preparation structure Good stability, good tribological properties in wide temperature range, and enhanced bonding performance

Active Publication Date: 2021-10-19
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual rotation process such as vibration and shock, especially the service conditions such as high temperature, high speed and heavy load, the lubricating grease is easy to wear, which makes the friction coefficient increase sharply and generates a lot of friction heat, resulting in pitting on the friction contact surface , Bonding and lubrication failure and other issues
This not only affects the normal disassembly and assembly of mechanical parts, but also affects the accuracy and normal operation of mechanical parts.

Method used

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  • A kind of multi-layer structure tinicrnb-based self-lubricating pin material and preparation method thereof
  • A kind of multi-layer structure tinicrnb-based self-lubricating pin material and preparation method thereof
  • A kind of multi-layer structure tinicrnb-based self-lubricating pin material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033]A multi-layer composite structure TiNiCrNb-based pin shaft material is made of TiNiCrNb-based alloy, friction reducer, anti-wear agent, and reinforcing agent. The structure is divided into friction film, load-bearing transition layer, and matrix load-bearing layer. The total thickness is 10mm. The thickness ratio is 4:17:49.

[0034] Such as figure 1 Shown, a kind of multilayer composite structure TiNiCrNb base pin material and preparation method thereof, it comprises the following steps:

[0035] 1) The friction film includes TiNiCrNb-based alloy, friction reducer, antiwear agent and reinforcing agent, and its mass fractions are 8wt.%, 26wt.%, 47wt.% and 19wt.%. The friction reducer is composed of 65wt.% PbSnCuInPt, 15wt.% cerium oxide and 20wt.% multilayer plate crystal MoBNbCrO; the mass ratio of each element of PbSnCuInPt is 18:16:14:12:10. The anti-wear agent is composed of 43wt.% nanometer TaC particles, 39wt.% silicon disulfide and 18wt.% tungsten disulfide. Th...

Embodiment 2

[0045] A multi-layer composite structure TiNiCrNb-based pin shaft material is made of TiNiCrNb-based alloy, friction reducer, anti-wear agent, and reinforcing agent. The structure is divided into friction film, load-bearing transition layer, and matrix load-bearing layer. The total thickness is 10mm. The thickness ratio is 6:23:65.

[0046] Such as figure 1 Shown, a kind of multilayer composite structure TiNiCrNb base pin material and preparation method thereof, it comprises the following steps:

[0047] 1) The contents of TiNiCrNb, friction reducer, antiwear agent and reinforcing agent in the friction film are 13wt.%, 39wt.%, 32wt.% and 16wt.%, respectively. The contents of TiNiCrNb, friction reducer, antiwear agent and reinforcing agent in the bearing transition layer are 40wt.%, 7wt.%, 17wt.% and 36wt.%, respectively. The friction film friction reducer is composed of 60wt.% soft alloy PbSnCuInPt, 30wt.% cerium oxide and 10wt.% multilayer plate crystal MoBNbCrO. The mass ...

Embodiment 3

[0057] A multi-layer composite structure TiNiCrNb-based pin shaft material uses TiNiCrNb-based alloys, friction reducers, anti-wear agents, and reinforcing agents as raw materials. The structure is divided into friction film, bearing transition layer, and matrix bearing layer. The total thickness is 10mm. The ratio is 8:41:72.

[0058] Such as figure 1 Shown, a kind of multilayer composite structure TiNiCrNb base pin material and preparation method thereof, it mainly comprises the following steps:

[0059] The friction film includes TiNiCrNb-based alloy, friction reducer, antiwear agent and reinforcing agent, the mass fractions of which are 13wt.%, 39wt.%, 31wt.% and 17wt.%. The friction reducer is composed of 45wt.% PbSnCuInPt, 31wt.% cerium oxide and 24wt.% multilayer plate crystal MoBNbCrO; the mass ratio of each element of PbSnCuInPt is 29:24:25:23:18. The anti-wear agent is composed of 56wt.% nanometer TaC particles, 21wt.% silicon disulfide and 23wt.% tungsten disulfid...

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Abstract

The invention relates to a multilayer structure TiNiCrNb-based self-lubricating pin shaft material design and a preparation method thereof. The self-lubricating pin shaft is based on TiNiCrNb, and the multi-component composite regulator is composed of friction reducer, antiwear agent and antiwear agent. First of all, it is prepared for multi-layer plate crystals, and then after the design and calculation of each layer of materials, vibration mixing, hot pressing molding, sample processing and hot pressing sintering, a multi-layer structure TiNiCrNb-based self-lubricating pin is obtained; due to multi-layer composite control The proportion of the agent in each layer is different, which can effectively exert the wear-reducing and wear-resistant properties of the soft metal PbSnCuInPt and the plate crystal, so that the multi-layer structure TiNiCrNb-based self-lubricating pin material can meet the high wear resistance of the connecting pin under special working conditions It can meet the requirements of high performance, improve the bearing capacity of the pin shaft, reduce the friction coefficient and wear rate of the material during the torsion process, and achieve a lubricating effect far exceeding that of oil and grease in actual working conditions.

Description

technical field [0001] The invention belongs to the technical field of design and preparation of anti-friction and wear-resistant materials such as pin shafts and shaft sleeves, relates to a pin shaft multilayer composite material with TiNiCrNb as a matrix and a preparation method thereof, and belongs to the technical field of fasteners. Background technique [0002] The mechanical system is often accompanied by friction and wear of materials during the transmission process. At present, the pin shaft is mainly used for hinge connection, cotter pin locking and hook transmission. The patent applicant Ningbo Chujin Co., Ltd., a pin shaft device, CN201820424433.3, and the patent applicant Yuhuan Zhongya Petroleum Machinery Co., Ltd., a pin shaft device Shaft device, CN201821224277.2. However, at present, the pin shafts used for equipment are prone to problems such as poor lubrication during the maintenance process, resulting in difficulty in removal, or even failure. In order ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F3/10B22F3/105B22F7/02C22C14/00C22C30/02C22C30/04B32B15/01B32B7/08B32B33/00B32B37/06B32B38/00
CPCB22F1/0003B22F3/1007B22F3/105B22F7/02B32B7/08B32B15/01B32B33/00B32B37/06B32B38/0008B32B2307/50B32B2307/554B32B2307/70B32B2307/752C22C14/00C22C30/02C22C30/04
Inventor 杨慷王秋菊殷雪赵卫兵马洪儒朱艳芳张飞志宁飞扬曹帅涛李爱虎王连富曹增志卞会涛
Owner ANYANG INST OF TECH
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