Fluorescent material coating method

A fluorescent material and coating method technology, applied in the field of fluorescent materials, can solve problems such as uneven coating, achieve uniform and dense coating, avoid local deposition, and improve product qualification rate

Pending Publication Date: 2021-06-25
黄石
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fluorescent material coating method, which solves the problem of uneven coating when coating the fluorescent material inside the LED lamp tube assembly

Method used

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  • Fluorescent material coating method
  • Fluorescent material coating method

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Experimental program
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Effect test

Embodiment 1

[0026] Example 1: BaMg 2 al 16 o 27 :Eu and MgAl 11 o 19 : (Ce, Tb) Fluorescent material combined at a volume ratio of 1:1; cylindrical LED lamp tube with a radius of 5cm and a length of 40cm

[0027] Such as figure 1 Shown, a kind of fluorescent material coating method, the step comprises:

[0028] Step 1: Process the inner surface of the LED lamp tube 100 by etching to form a gradient slope 200 with an inner diameter, and the inclination angle is 0.5° (the angle with the vertical surface, the same below);

[0029] Step 2: Dispersing the fluorescent material in ethanol to form a fluorescent material solution, the volume ratio of the fluorescent material to the solvent in the fluorescent material solution is 1:0.8;

[0030] Step 3: Place the LED tube vertically with the larger end of the LED tube facing up, inject the fluorescent material solution into the LED tube, and apply a rotating force to the LED tube to make the LED tube rotate at a constant speed. Rotate horizo...

Embodiment 2

[0032] Embodiment 2: (BaSi 2 o 3 ): Pb fluorescent material; a cylindrical LED tube with a radius of 5cm and a length of 40cm

[0033] A method for coating a fluorescent material, the steps comprising:

[0034] Step 1: Treat the inner surface of the LED lamp tube by etching to form a gradient slope with an inner diameter of 1°;

[0035] Step 2: Dispersing the fluorescent material in deionized water to form a fluorescent material solution, the volume ratio of the fluorescent material to the solvent in the fluorescent material solution is 1:1.5;

[0036] Step 3: Place the LED tube vertically with the larger end of the LED tube facing up, inject the fluorescent material solution into the LED tube, and apply a rotating force to the LED tube to make the LED tube rotate at a constant speed. Rotate horizontally at a speed of 1012r / min;

[0037] Step 4: During the horizontal rotation of the LED lamp tube, vacuum drying at a temperature of 100° C. is used to cure the fluorescent ma...

Embodiment 3

[0038] Example 3: Y(PV)O 4 : Eu fluorescent material; cylindrical LED tube with a radius of 5cm and a length of 40cm

[0039] A method for coating a fluorescent material, the steps comprising:

[0040] Step 1: Treat the inner surface of the LED lamp tube by grinding to form a gradient slope with an inner diameter of 1.5°;

[0041] Step 2: Dispersing the fluorescent material in oxalic acid to form a fluorescent material solution, the volume ratio of the fluorescent material to the solvent in the fluorescent material solution is 1:2.5;

[0042] Step 3: Place the LED tube vertically with the larger end of the LED tube facing up, inject the fluorescent material solution into the LED tube, and apply a rotating force to the LED tube to make the LED tube rotate at a constant speed. Rotate horizontally at a speed of 826r / min;

[0043] Step 4: During the horizontal rotation of the LED lamp tube, vacuum drying at a temperature of 150° C. is used to cure the fluorescent material solut...

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Abstract

The invention discloses a fluorescent material coating method. The method is used for achieving coating in a cylindrical LED lamp tube and comprises the steps that firstly, the inner surface of the LED lamp tube is treated to form an inclined surface with the inner diameter gradually changed; secondly, a fluorescent material is dispersed in a solvent to form a fluorescent material solution; thirdly, the LED lamp tube is vertically placed, the end, with the large inner diameter, of the LED lamp tube faces upwards, the fluorescent material solution is injected into the LED lamp tube, and rotating acting force is applied to the LED lamp tube, so that the LED lamp tube horizontally rotates at a constant rotating speed; and fourthly, in the horizontal rotation process of the LED lamp tube, the fluorescent material solution in the LED lamp tube is cured, and coating is completed. According to the method, the coating mode of the fluorescent material in the cylindrical LED lamp tube is improved, so that coating of the fluorescent material is achieved uniformly and compactly, the local deposition phenomenon is avoided, the problems of inaccurate color temperature and non-uniform light mixing are solved, and the product percent of pass is improved; and the method also has the advantages of being simple in operation, high in production efficiency, low in cost and the like.

Description

technical field [0001] The invention relates to the technical field of fluorescent materials, in particular to a fluorescent material coating method. Background technique [0002] Fluorescent material is calcined by metal (zinc, chromium) sulfide or rare earth oxide and trace active agent. Colorless or light white, under the irradiation of ultraviolet light (200-400nm), according to the different types and contents of metals and activators in the pigment, it presents various colors of visible light (400-800nm). With the advancement of science and technology, more and more researches have been done on fluorescent materials, and the application range of fluorescent materials has become wider and wider. In addition to being used as dyes, fluorescent substances are also widely used in organic pigments, optical brighteners, photooxidants, coatings, chemical and biochemical analysis, solar collectors, anti-counterfeiting marks, drug tracers and lasers. [0003] In recent years, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/22B05D3/04
CPCB05D7/222B05D3/0493
Inventor 黄石
Owner 黄石
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