Preparation method of porous oil-containing lubrication material using UHMWPE as matrix

A technology of lubricating materials and solid lubricants, applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems of equipment environmental pollution, lubricating grease viscosity reduction, poor matrix bonding force, etc., and achieve simple preparation process and excellent lubrication Performance, the effect of improving wear resistance

Active Publication Date: 2016-06-22
LUOYANG MOTIPU LUBRICATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two lubrication methods are commonly used, but there are also big problems: first, it is cumbersome to add lubricating grease regularly, and it will increase the maintenance cost of the equipment; second, it is difficult to directly add lubricating grease to some special parts Lubricating grease; third, when the amount of oil is too much, it is easy to absorb dust, or dripping occurs, which affects the service life of the equipment and pollutes the products in production; fourth, during the operation of mechanical equipment, the increase in temperature will reduce the viscosity of lubricating grease, resulting in Lubricating grease leaks, causing pollution to the equipment environment and products in progress; fifth, designing the oil supply system will greatly increase the design difficulty and production cost; sixth, under harsh conditions such as high environmental requirements for mechanical equipment, due to the If the amount of filling is small, it is difficult to achieve the requirement of long life; Seventh, for precision equipment with high requirements on the use environment, the dripping caused by the commonly used lubricating grease during u

Method used

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  • Preparation method of porous oil-containing lubrication material using UHMWPE as matrix
  • Preparation method of porous oil-containing lubrication material using UHMWPE as matrix
  • Preparation method of porous oil-containing lubrication material using UHMWPE as matrix

Examples

Experimental program
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Effect test

Example Embodiment

[0035] The preparation method of porous oil-containing lubricating material using ultra-high molecular weight polyethylene (UHMWPE) as the matrix includes the following steps:

[0036] a formula: according to parts by weight, take 70-90 parts of thermoplastic ultra-high molecular weight polyethylene, 1-20 parts of polytetrafluoroethylene (PTFE) and 1-10 parts of solid lubricant, and then fully stir to obtain composite powder;

[0037] The solid lubricant here is at least one of molybdenum disulfide or graphite;

[0038] Add 0.1-1 part of additives to the composite powder according to actual needs. The additives here can be antioxidants, light and heat stabilizers, impact modifiers or antiwear agents;

[0039] b Molding: Put the composite powder into the mold, then put the assembled mold on a small press and pre-press it under a pressure of 2Mpa. After the pressure is maintained for 1 min, the pressure is relieved, and then it is pressed and molded under a pressure of 1-15Mpa. The mold...

Example Embodiment

[0047] Example 1

[0048] The preparation method of porous oil-containing lubricating material with UHMWPE as the matrix includes the following steps: take 70 parts of thermoplastic ultra-high molecular weight polyethylene, 20 parts of polytetrafluoroethylene (PTFE), and 10 parts of molybdenum disulfide in parts by weight. After that, the composite powder is obtained; the composite powder is put into the mold, and then the assembled mold is placed on a small press for pre-compression at a pressure of 2Mpa. After the pressure is maintained for 1 min, the pressure is relieved, and then the composite powder is molded under a pressure of 1Mpa. The molded object (including the mold) is placed in a sintering furnace, heated at 10°C / min to 120°C, then heated at 5°C / min to 230°C, kept for 150 minutes, then taken out, naturally cooled, and demolded to obtain a porous material. The porous material is placed in a vacuum drying box with a vacuum degree of 0.1Mpa, and the temperature is rais...

Example Embodiment

[0049] Example 2

[0050] The preparation method of the porous oil-containing lubricating material with UHMWPE as the matrix includes the following steps: take 90 parts of thermoplastic ultra-high molecular weight polyethylene, 5 parts of polytetrafluoroethylene (PTFE), and 5 parts of graphite in parts by weight. After fully stirring, The composite powder is obtained; the composite powder is put into the mold, and then the assembled mold is placed on a small press for pre-compression at a pressure of 2Mpa. After the pressure is maintained for 1 min, the pressure is relieved, and then pressed under a pressure of 10Mpa. (Including mold) placed in a sintering furnace, heated to 130°C at 5°C / min, then heated to 250°C at 10°C / min, kept for 100 minutes, then taken out, cooled naturally, and demolded to obtain a porous material. The porous material is placed in a vacuum drying box with a vacuum degree of 0.05Mpa, and the temperature is raised to 60°C for vacuum impregnation of lubricat...

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Abstract

A preparation method of a porous oil-containing lubrication material using UHMWPE as a matrix comprises the steps that 70-90 parts of the UHMWPE, 1-20 parts of polytetrafluoroethylene and 1-10 parts of a solid lubricant are stirred and mixed; then, the mixed powder is subjected to press forming and sintering treatment; the sintered and formed material is subjected to vacuum oiled immersion.The prepared thermoplastic polyethylene porous oil-containing material having ultra-high molecular weight internally has a rich porous structure, can continuously and stably provide lubricating oil in a working state and has abrasion resistance, impact resistance, chemical corrosion resistance, low temperature resistance and other excellent performances.Oil can be continuously supplied to a mechanical friction pair, and a practical effect is good.

Description

technical field [0001] The invention relates to the technical field of lubricating materials, in particular to a preparation method and application of a porous oil-containing lubricating material with thermoplastic UHMWPE as a matrix. Background technique [0002] With the continuous development of society, people's requirements for the quality of social products are getting higher and higher, which also puts forward higher standards for the production of industry and daily necessities. As a result, the industrial revolution was set off, and the industrial revolution also drove the development of equipment. Technology upgrade. The problem of wear and tear of production equipment also follows, and the effect of lubrication determines the service life of equipment. [0003] Friction pairs are widely used in mechanical equipment, and the lubrication effect of friction pairs is an important factor affecting the service life of equipment. Textile machinery, robots, aerospace, p...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06
CPCC10M125/02C10M125/22C10M147/02C10M169/04C10N2030/06
Inventor 魏佳平郑志武赵联春
Owner LUOYANG MOTIPU LUBRICATION MATERIAL CO LTD
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