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Metal plastic composite bearing pad and manufacturing method thereof

A composite bearing bush, metal-plastic technology, applied in the direction of bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of large thickness of the surface plastic layer, limited application range, and high cost of composite bearing bushes, reducing thickness and expanding the scope of application. , to ensure the effect of brazing quality

Inactive Publication Date: 2013-03-20
DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a metal-plastic composite bearing and a manufacturing method thereof, to at least solve the problems in the prior art that the plastic layer on the surface of the metal-plastic composite bearing material is relatively thick, resulting in high cost of the composite bearing and limited application range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Select a copper-clad steel wire with a diameter of 0.3mm to wind a coil spring with an outer diameter of 3.0mm, and then cut it into a coil spring segment with a length of 30mm; the processed coil spring segment has a surface density of 1.25g / cm 2 Weigh first, then disperse evenly and disorderly into the mold, pressurize in a limited position, and make a metal wire mat blank with a porosity of 20%.

[0037] According to the ratio of 78wt% polytetrafluoroethylene, 20wt% polyphenylene resin, and 2wt% aramid fiber, the mixture is mixed to prepare filled polytetrafluoroethylene resin powder. The prepared filled polytetrafluoroethylene resin powder is 0.64g / cm by surface density 2 Weigh it first, then evenly place it on the metal wire mat blank, pressurize it to 50MPa, keep it under this pressure for 2 minutes, and get the tile surface blank.

[0038] Put the pressed tile surface rough into the furnace for sintering, the sintering temperature is 380°C, keep at this temperat...

Embodiment 2

[0040] Select a copper-clad steel wire with a diameter of 0.2mm to wind a coil spring with an outer diameter of 3.0mm, and then cut it into a coil spring section with a length of 40mm; the surface density of the processed coil spring section is 1.75g / cm 2 Weigh first, then disperse evenly and disorderly into the mold, pressurize in a limited position, and make a metal wire mat blank with a porosity of 20%.

[0041] According to the ratio of polytetrafluoroethylene 68wt%, polyphenylene resin 24wt%, and aramid fiber 8wt%, the mixture was mixed to prepare filled polytetrafluoroethylene resin powder. The prepared filled polytetrafluoroethylene resin powder is 0.55g / cm by surface density 2 Weigh it first, then evenly place it on the metal wire mat blank, pressurize it to 40MPa, keep it under this pressure for 2 minutes, and get the tile surface blank.

[0042] Put the pressed tile surface blank into a furnace for sintering, the sintering temperature is 395°C, keep at this temperat...

Embodiment 3

[0044] Select a copper-clad steel wire with a diameter of 0.25mm to wind a coil spring with an outer diameter of 2.0mm, and then cut it into a coil spring section with a length of 10mm; the surface density of the processed coil spring section is 0.88g / cm 2 Weigh first, then disperse evenly and disorderly into the mold, pressurize in a limited position, and make a metal wire mat blank with a porosity of 20%.

[0045] According to the ratio of polytetrafluoroethylene 69wt%, polyphenylene resin 30wt%, and aramid fiber 1wt%, the mixture was mixed to prepare filled polytetrafluoroethylene resin powder. The prepared filled polytetrafluoroethylene resin powder is 0.46g / cm by surface density 2 Weigh it first, then evenly place it on the metal wire mat blank, pressurize it to 30MPa, keep it under this pressure for 2 minutes, and get the tile surface blank.

[0046] Put the pressed tile surface blank into the furnace for sintering, the sintering temperature is 370°C, keep at this tempe...

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Abstract

The invention relates to a composite material bearing pad and a manufacturing method thereof. The metal plastic composite bearing pad comprises a tile surface and a tile base, wherein the thickness of the tile surface is 3-6mm, the metal plastic composite bearing pad comprises a metal wire cushion layer and a polytetrafluoroethylene plastic surface layer, the thickness of the metal wire cushion layer is 2.5-5 mm, the metal wire cushion layer is made of a metal wire the diameter of which is 0.2-0.3mm, and the thickness of the polytetrafluoroethylene plastic surface layer is 0.5-1.5 mm. According to the composite material bearing pad provided by the invention, the metal wire cushion layer is manufactured through adopting the metal wire the diameter of which is 0.2-0.3 mm, the thickness of the metal wire cushion layer is notably reduced, and meanwhile, the void content of the metal wire cushion layer is notably reduced, so that the thin-reducing tile surface and the metal plastic composite bearing pad comprising the same are obtained, thereby achieving the technical effects that the material cost is saved, the applied range of the composite bearing pad is expanded, the brazing quality is guaranteed and the surface uniformity is improved.

Description

technical field [0001] The invention relates to the field of composite material sliding bearings, in particular to a metal-plastic composite bearing bush and a manufacturing method thereof. Background technique [0002] Using metal-plastic composite materials to manufacture bearing pads of sliding bearings can obtain better mechanical properties. There are many manufacturing methods of metal-plastic composite bearing pad materials in the prior art. [0003] Chinese invention patent ZL 98114436.5 discloses a "method for manufacturing elastic metal-plastic thrust bearings", the steps of which include: (1) coiling a metal wire with a diameter of 0.35-0.45mm to form a coil spring with an outer diameter of 2.6-3.3mm, Then cut into coil spring segments with a length of 25-45mm; (2) Randomly scatter the processed coil spring segments into the mold evenly and randomly, and pressurize them in a limited position to make a metal wire mat blank; (3) Place a layer of modified polytetraf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/20C08L27/18C08L67/00C08L77/10
Inventor 魏柏林李云龙范晶昌陈丽娟
Owner DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV
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