Automatic-door threaded rod and anti-friction coating thereof as well as spraying method of anti-friction coating

An anti-friction coating and automatic door technology, applied in coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of high maintenance costs, difficult maintenance, and short maintenance cycles, and achieve low production costs and self-lubricating Excellent performance and wear resistance, simple production process

Active Publication Date: 2013-07-24
SHANGHAI YILIN LUBRICATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of difficult maintenance, short maintenance cycle and high maintenance cost of the existing lubricating system of the automatic door screw of rail vehicles, a screw anti-friction coating with excellent performance for automatic doors of rail vehicles is provided:

Method used

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  • Automatic-door threaded rod and anti-friction coating thereof as well as spraying method of anti-friction coating
  • Automatic-door threaded rod and anti-friction coating thereof as well as spraying method of anti-friction coating
  • Automatic-door threaded rod and anti-friction coating thereof as well as spraying method of anti-friction coating

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Embodiment

[0020] Anti-friction coating The automatic door screw of rail vehicles is composed of a metal substrate and an anti-friction coating, and the surface of the metal substrate is coated with an anti-friction coating, which constitutes the working layer of the screw; anti-friction coating The composition of the layer includes main material composite polymer material, composite solid lubricant, composite solid anti-wear agent and additives.

[0021] The formulation of the anti-friction coating is as follows:

[0022] Solid lubricant: 5% molybdenum disulfide, 12% graphite, 2% graphite fluoride, 6% tungsten disulfide, 2% molybdenum diselenide;

[0023] The wear-resistant agent is: 1% nano-diamond, 3% silicon nitride, 6% aluminum oxide, 3% silicon dioxide, 2% antimony trioxide, 11% silicon carbide, 1% carbon nanotubes;

[0024] Additive: powder surface treatment agent 8%;

[0025] Adhesive: 15% polyester resin, 10% epoxy resin, 13% acrylic resin;

[0026] After mixing, the specifi...

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Abstract

The invention relates to an automatic-door threaded rod of a railway vehicle and an anti-friction coating thereof as well as a spraying method of the anti-friction coating. The dry film thickness of the anti-friction coating is 15-25 micrometers, the flashing point of the coating is 110 DEG C, and the specific gravity of the coating is 1200+/-60g/L; and the coating comprises the following components in percentage by weight: 1-6% of molybdenum disulfide, 10-28% of graphite, 1-3% of graphite fluoride, 2-8% of tungsten disulfide, 0-3% of molybdenum diselenide, 1-3% of nanometer diamond, 1-5% of silicon nitride, 2-8% of aluminium oxide, 0-3% of silica, 0-2% of antimony trioxide, 3-15% of silicon carbide, 0-1.5% of carbon nanotube, 10-16% of polyester resin, 15-30% of epoxy resin, 6-20% of acrylic resin and 0-8% of powder surface treating agent. The automatic-door threaded rod of the railway vehicle, which adopts the anti-friction coating, has good self-lubrication and abrasion performance; the production process is simple; and the production cost is low.

Description

[technical field] [0001] The present invention relates to rail vehicle automatic door screws, antifriction coatings and methods thereof. [Background technique] [0002] The rail vehicle automatic door system is an important part of the urban rail transit vehicle. The structure of the single-wing sliding door and the double-wing side-by-side door are the two most representative structures of the automatic door system. It is used in overhead manipulators of single-wing sliding doors and double-wing side-by-side doors. Screw transmission is the transmission mode of the door. The main components of screw transmission are screw and nut assembly. The screw is generally made of metal, and the nut assembly is made of metal or composite non-metallic material. There are two lubrication methods: self-lubricating and artificial lubrication. The screw drive system needs to be cleaned and lubricated every few months, and the whole system must be fully inspected or even replaced every 5 y...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/00C09D133/00C09D7/12B05D5/08
Inventor 张碧波
Owner SHANGHAI YILIN LUBRICATING MATERIAL
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