Preparation method for self-lubricating antifriction wear-resistant coating of suspension clamp of transmission line

A technology for suspension clips and transmission lines, applied in coating, metal material coating process, melting spray plating, etc., can solve problems such as wire wear, and achieve the effect of improving service life, prolonging service life, and preventing hard abrasion damage.

Active Publication Date: 2016-11-16
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the hard coating has high hardness and high wear resistance, it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

[0036] A self-lubricating composite coating for electric power fittings. The composition mass percentage of the coating is: tin (Sn) 5%, antimony (Sb) 1.5%, silicon (Si) 2.0%, boron (B) 0.8%, carbon (C) ) <0.01%, the total amount of other impurities <1.0%, the balance is copper (Cu).

[0037] Copper-based alloy powder for preparing self-lubricating coating: the selected raw material is commercially available: CuSi 16 Master alloy, CuSb 50 Master alloy, CuSn 16 Master alloy, CuB 3 Master alloy, T1 oxygen-free copper (copper content ≥99.98wt.%). According to the formula ratio, put the raw materials into the crucible of the high-frequency induction vacuum melting equipment. The alloy raw materials are fully melted at 1100℃~1150℃ and held for 10 minutes before being released from the furnace. Then, the powder is atomized in the powder mill in high purity argon. The powder is prepared in a protective atmosphere, sieved, and the powder with a particle size range of 10...

Example Embodiment

[0042] Example 2

[0043] A self-lubricating composite coating for power fittings. The composition mass percentage of the coating is: tin (Sn) 18.0%, antimony (Sb) 8.0%, silicon (Si) 5.0%, boron (B) 1.5%, carbon (C) ) <0.01%, the total amount of other impurities <1.0%, the balance is copper (Cu).

[0044] Copper-based alloy powder for preparing self-lubricating coating: the selected raw material is commercially available: CuSi 16 Master alloy, CuSb 50 Master alloy, CuSn 16 Master alloy, CuB 3 Master alloy, T1 oxygen-free copper (copper content ≥99.98wt.%). According to the formula ratio, put the raw materials into the crucible of the high-frequency induction vacuum melting equipment. The alloy raw materials are fully melted at 1100℃~1150℃ and held for 10 minutes before being released from the furnace. Then, the powder is atomized in the powder mill in high purity argon. The powder is prepared in a protective atmosphere, sieved, and the powder with a particle size range of 10 μm to...

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Abstract

The invention discloses a preparation method for a self-lubricating antifriction wear-resistant coating of a suspension clamp of a transmission line. The preparation method comprises the following steps: by taking copper-based self-melting alloy powder as a coating raw material, spraying a porous coating, the porosity of which is 5-25%, to the surface of a clamp part through surface pre-treatment by adopting flame spraying; then infiltrating a carbon source to the porous coating through a solvent method; and then performing curing and polishing to prepare the self-lubricating antifriction wear-resistant coating, wherein the copper-based self-melting alloy respectively comprises the following components in percentages by mass: 5-25% of stannum (Sn), 0.5-10.0% of stibium (Sb), 0.5-5.0% of silicon (Si), 0.5-2.0% of boron (B), less than 0.01% of carbon (C), less than 1.0% of other impurities in total and the balance of copper (Cu). The coating prepared by the method can alleviate rapid wear of members of the suspension clamp of the transmission line and that among wires to a great extent, so that the service life of the suspension clamp of the transmission line is prolonged, and meanwhile, hard-wear damage to the wires caused by the clamp is prevented.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a method for manufacturing electric fittings and a surface coating. Background technique [0002] The transmission line clamp is one of the main components for connecting, fixing and supporting overhead conductors. Under the action of the environment (wind force, icing, rainfall, temperature changes, etc.), fixed-frequency vibration of towers, wire vibration, etc., the wire clip and the wire are in a permanent relative motion state. Over time, the wire and the wire clip are worn and damaged Deplete both or clamp components to failure. [0003] The clamps used in overhead transmission lines are mostly made of steel materials with surface hot-dip galvanized. The hot-dip galvanized layer on the surface is relatively soft, and it will be transformed into wear between the steel substrate and the aluminum conductor or the steel substrate and the steel substrate after the co...

Claims

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Application Information

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IPC IPC(8): C23C4/06C23C4/129C23C4/18C22C9/02C22C9/00
CPCC22C9/00C22C9/02C23C4/06C23C4/18
Inventor 李辛庚苏建军李勇岳增武张振岳李文静陈素红傅敏
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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