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Lead-containing sealing glass powder with spectrally selective absorption characteristics and its manufacturing method

A technology for sealing glass and absorbing characteristics, applied in the field of lead-containing sealing glass powder and its manufacturing, can solve the problems of slow heating speed, large heating area, and the overall temperature of the object to be sealed, etc. Appropriate expansion coefficient, easy to prepare effect

Active Publication Date: 2016-10-19
CHINA BUILDING MATERIALS ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is used in the light radiation heating sealing process, a series of problems such as slow heating speed, large heating area, and overall temperature rise of the sealed object are prone to occur.

Method used

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  • Lead-containing sealing glass powder with spectrally selective absorption characteristics and its manufacturing method
  • Lead-containing sealing glass powder with spectrally selective absorption characteristics and its manufacturing method
  • Lead-containing sealing glass powder with spectrally selective absorption characteristics and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for manufacturing a lead-containing sealing glass frit with spectrally selective absorption properties:

[0037] Step 101: According to the components corresponding to Example 1 in Table 1, that is, the basic components and the composition of rare earth oxides and transition metal oxides, weigh various oxide raw materials and / or compounds corresponding to the oxides, and mix them thoroughly, Make a mixture; Wherein, boron oxide, calcium oxide, strontium oxide and barium oxide select their corresponding compounds for use, and the parts by weight of the corresponding compounds are the corresponding parts by weight converted according to their oxide content;

[0038] Step 102: melting the mixture obtained in step 101 at 1200°C for 3 hours to obtain a molten liquid of the mixture;

[0039] Step 103: cooling the molten liquid of the mixture obtained in step 102 on an iron plate, crushing and grinding the cooled glass pieces, and passing through a 200-mesh sieve to o...

Embodiment 2

[0051] A method for manufacturing a lead-containing sealing glass frit with spectrally selective absorption properties:

[0052] Step 101: According to the components corresponding to Example 2 in Table 1, that is, the composition of the basic components and rare earth oxides and transition metal oxides, weigh various oxide raw materials and / or compounds corresponding to the oxides, and mix them thoroughly, Make a mixture; make a mixture; wherein, boron oxide, potassium oxide, sodium oxide, lithium oxide and silver oxide are selected from their corresponding compounds, and the weight of the corresponding compounds is the corresponding weight converted according to their oxide content number of copies;

[0053] Step 102: melting the mixture obtained in step 101 at 800°C for 0.5 hour to obtain a molten liquid of the mixture;

[0054] Step 103: cooling the molten liquid of the mixture obtained in step 102 on an iron plate, crushing and grinding the cooled glass pieces, and passi...

Embodiment 3

[0066] A method for manufacturing a lead-containing sealing glass frit with spectrally selective absorption properties:

[0067] Step 101: According to the components corresponding to Example 3 in Table 1, that is, the basic components and the composition of rare earth oxides and transition metal oxides, weigh various oxide raw materials and / or compounds corresponding to the oxides, and mix them thoroughly, Make a mixture; wherein, boron oxide, calcium oxide, strontium oxide, barium oxide and silver oxide select their corresponding compounds for use, and the parts by weight of the corresponding compounds are the corresponding parts by weight converted according to their oxide content;

[0068] Step 102: melting the mixture obtained in step 101 at 1100°C for 2 hours to obtain a molten liquid of the mixture;

[0069] Step 103: cooling the molten liquid of the mixture obtained in step 102 on an iron plate, crushing and grinding the cooled glass pieces, and passing through a 300-m...

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Abstract

The present invention discloses lead-containing sealing glass powder having a selective spectrum absorption characteristic, and a preparation method thereof, wherein a lead-containing low temperature sealing glass system is adopted as a base component, and is added with a rare earth oxide capable of making the sealing glass produce the selective spectrum absorption characteristic and a transition metal oxide, and the weight percentage ratio of the total amount of the base component to the total amount of the rare earth oxide and the transition metal oxide in the lead-containing sealing glass is 100:0.12-10.0. The lead-containing sealing glass powder prepared according to the method has the selective spectrum absorption characteristic, is applicable for the light radiation heating sealing processes adopting ultraviolet light, visible light or infrared light as the heating source, can be used for insulating sealing or air tightness sealing of electrical vacuum devices, electronic components or vacuum insulating glasses, and has advantages of low sealing temperature, good chemical stability, appropriate expansion coefficient, easy preparation, continuous large-scale industrial production and the like.

Description

technical field [0001] The invention relates to the technical field of glass production, in particular to a lead-containing sealing glass powder with spectral selective absorption characteristics and a manufacturing method thereof. Background technique [0002] Electronic components, electric vacuum devices or vacuum components often use lead-containing sealing glass powder to make insulating or airtight sealing. Usually, electric heating elements are used as heat sources, and heat transfer is mainly convection. This method has disadvantages such as long heating time, slow sealing process, high energy consumption, and low production efficiency. In particular, the sealed object needs to be heated to the glass frit sealing temperature to complete the sealing, which makes it subject to limit. For example: OLED displays need to use sealing glass powder to form an airtight seal between two substrates during manufacture, and the sealing temperature is about 400-450°C. However, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/24
Inventor 黄幼榕李要辉王晋珍汪洪
Owner CHINA BUILDING MATERIALS ACAD
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