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Powder sintering phosphorescence particle indication composite coating

A luminescent particle, phosphorescent technology, applied in the field of wear and corrosion self-sensitive luminescence detection, can solve the problems of not meeting the requirements of industrial coating applications, quenching luminescence performance, weak binding force and so on

Inactive Publication Date: 2015-05-13
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Industrial large-scale mechanical parts are mostly prepared with supersonic, plasma and other surface engineering technologies to achieve surface wear and corrosion protection of parts, but ordinary supersonic, plasma and flame spraying heat sources will affect the luminescence of fluorescent (phosphor) particles The key factor of performance quenching, while the binding force of a single inorganic salt fluorescent (phosphor) particle coating on the metal substrate is quite weak, which cannot meet the requirements of industrial coating applications

Method used

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  • Powder sintering phosphorescence particle indication composite coating
  • Powder sintering phosphorescence particle indication composite coating
  • Powder sintering phosphorescence particle indication composite coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation of copper-based powder sintered functional indicator coatings incorporated with phosphorescent luminescent particles:

[0022] Aluminum bronze base powder, its chemical composition (mass fraction) is: Cu is 78.00%, Al is 13.00%, Mn is 1.80%, Fe is 4.00%, Co is 1.50%, Ni is 1.50%, Ce is 0.20%. The particle size distribution is (-160~+260) mesh.

[0023] Phosphorescent particles are selected from SrAl 2 o 4 :Eu 2+ , Dy 3+ Phosphor powder (europium, dysprosium activated strontium aluminate), particle size is 180 mesh.

[0024] The aluminum bronze-based powder is quantitatively taken by volume, the phosphorescent particles are dosed according to 25.0% of the total volume fraction of the aluminum bronze-based powder, and liquid paraffin with a total volume fraction of 1.0% of the ingredients is added as a molding agent, and the three-dimensional vortex mixer (TD-2) Mix in medium for 30 minutes, fill the material according to the thickness of the coating, put...

Embodiment 2

[0026] Preparation of symbiotic composite sintered coatings in which phosphorescent particles are incorporated into the coating as an indicator layer under the wear-resistant and corrosion-resistant functional layer:

[0027]Functional layer aluminum bronze base powder, its chemical composition (mass fraction) is: Cu is 78.00%, Al is 13.00%, Mn is 1.80%, Fe is 4.00%, Co is 1.50%, Ni is 1.50%, Ce is 0.20% . The particle size distribution is (-160~+260) mesh.

[0028] The metal powder of the indicator layer is Ni65G nickel-based alloy powder, and the particle size distribution is (-160~+260) mesh.

[0029] Phosphorescent particles are selected from SrAl 2 o 4 :Eu 2+ , Dy 3+ Phosphor powder (europium, dysprosium activated strontium aluminate), particle size is 150 mesh.

[0030] Quantitatively take the indicator layer Ni65G nickel-based alloy powder by volume, the phosphorescent particles are formulated according to 25.0% of the overall volume fraction of the Ni65G nickel-b...

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Abstract

The invention discloses a method for preparing a wear-proof and anti-corrosion concomitant composite sintering coating on a powder sintering function indication coating incorporated with phosphorescence incandescent particles and an indication coating prepared through incorporating phosphorescence incandescent particles. By means of the composite sintering coating, the wear resistance of part surfaces, the wear resistance of a corrosion-resistance coating, and the corrosion self-sensitive luminescence detection or the anti-counterfeiting of equipment assembly parts are achieved.

Description

technical field [0001] The invention relates to wear and corrosion self-sensitive luminescent detection technology, in particular to a powder sintered copper-based phosphorescent particle composite coating and a preparation method thereof. Background technique [0002] Wear and corrosion are the main forms of mechanical failure. When using acoustic emission, photothermal radiation, ultrasonic vibration and ferrography to detect wear and corrosion, advanced sensors, rich production data experience or models are required, which are expensive and time-consuming . [0003] It is very important to develop an on-line monitoring method of wear or corrosion state using fluorescent (phosphor) luminescent coating, and to adopt a simpler and more effective method for on-line monitoring of wear and corrosion surfaces. The fluorescent (phosphor) light-emitting particles are incorporated or used as a composite indicator layer under the wear-resistant and corrosion-resistant functional la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F7/02
Inventor 李文生杨效田何玲冯力安国升
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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