CN105271756B - A kind of intermediate sealing glass - Google Patents
A kind of intermediate sealing glass Download PDFInfo
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- CN105271756B CN105271756B CN201510650694.8A CN201510650694A CN105271756B CN 105271756 B CN105271756 B CN 105271756B CN 201510650694 A CN201510650694 A CN 201510650694A CN 105271756 B CN105271756 B CN 105271756B
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Abstract
The present invention relates to glass material field, more particularly to a kind of intermediate sealing glass, raw material components form as Al by mass percentage2O34 6%, MgO 0.001 0.004%, B2O313 17%, CaO 1 3%, K2O 0.005 0.008%, Na2O 2 5%, SiO270 75%, Fe2O30.04 0.06%.The glass of this formula has the advantages that the thermal coefficient of expansion close to metal, excellent heat endurance and mechanical strength, is being easy to shaping, moreover it is possible to effectively suppresses the formation of micro-crack during use, so as to extend the service life of product.
Description
Technical field
The present invention relates to glass material field, more particularly to a kind of intermediate sealing glass.
Background technology
Transition sealing technology is widely used in the sealing-in between metal and glass.Due to the difference of metal and thermal expansion coefficient of glass
Not excessive, the thermal coefficient of expansion of glass is much smaller than the thermal coefficient of expansion of metal, at high temperature with the inside glass meeting of metal sealing
Very big thermal stress is produced, causes glass can not direct sealing-in with metal material.Transition sealing technology is mainly in metal and glass
The more similar transitional glass material of thermal coefficient of expansion is added between glass to realize the matched seal between material.But transitional glass
The thermal coefficient of expansion of material is bigger, and its stability and thermal shock resistance can all reduce, so a kind of good transitional glass needs to have
With metal similar in thermal coefficient of expansion, while to ensure excellent stability and intensity.The composition of transitional glass directly affects
Hot expansibility, operability, stability and the mechanical strength of itself, it is close with metal material sealing-in also to influence it
Property.Especially under high temperature difference and the environment of hyperbar difference, transitional glass subjects very big stress, and bad sealing-in can even draw
The failure for playing material is burst, so the composition of transitional glass is most important.Chinese patent CN102452794A discloses a kind of knot
Crystal formation low-melting point sealing glass and preparation method thereof, this kind of crystalline low-melting-point sealing glass form as SiO by weight percentage2
It is 10~30%, B for 50~70%, ZnO2O3It is 1~8%, Na for 1~10%, CaO2O is 1~10%, Li2O is 10%,
Sb2O3For 0.1~1%, in the sealing glass composition, Sb2O3With toxicity, long-term use of this kind of seal glass can be to people
Health produces harmful effect；Chinese patent CN10326398A discloses a kind of crystallization type lead-free low-temperature seal glass and its preparation
With application method, in that patent, B is employed2O3、Al2O3、SiO2, MO it is (one or more of in MgO, CaO, SrO, BaO
Mixture), Bi2O3Combination, still, because Bi elements have faint radioactivity, it still can influence the health of people, therefore
It is necessary to study a kind of new seal glass to have close to the thermal coefficient of expansion of metal material, heat endurance is good, mechanical strength
Height, the seal glass for being easy to shaping, while radioactive element is not contained also, the element such as heavy metal, poisonous and harmful.
The content of the invention
To achieve the above object, the present invention have developed a kind of intermediate sealing glass, adopt the following technical scheme that：
A kind of intermediate sealing glass, raw material components form by mass percentage is：Al2O34-6%, MgO 0.001-
0.004%, B2O313-17%, CaO 1-3%, K2O 0.005-0.008%, Na2O 2-5%, SiO270-75%, Fe2O3
0.04-0.06%.
The high temperature resistant intermediate sealing glass of the present invention, the material with toxicity is not both included in raw material components, is not included yet
Radioactive substance, while glass has close to the thermal coefficient of expansion of metal, excellent heat endurance and mechanical strength, is easy to be molded
The advantages that, moreover it is possible to effectively suppress the formation of micro-crack during use, so as to extend the service life of product.
In the glass ingredient of the present invention, Al2O3With a variety of advantages, the crystallization tendency of glass can be reduced, improves glass
Chemical stability, heat endurance, mechanical strength, hardness, and the viscosity of glass can be improved etc., less MgO can make glass
Setting rate is slack-off, improves the forming property of glass.MgO can also reduce the crystallization tendency and crystallization rate of glass, increase simultaneously
The high-temperature viscosity of glass, improve the chemical stability and mechanical strength of glass.B2O3The thermal coefficient of expansion of glass can be reduced, it is higher
The B of content2O3The heat endurance and chemical stability of glass can be effectively improved, improves the gloss of glass, and improves the machinery of glass
Performance, add B2O3Forming temperature wider range of glass can also be made.CaO is stabilizer, and the purpose is to increase the chemistry of glass
Stability and mechanical strength.Na2O can provide free oxygen so as to reduce the viscosity of glass, be the cosolvent of glass.K2O viscosity ratio sodium
Glass is big, and the tendency towards devitrification of glass can be reduced by introducing the potash glass of minimum ratio, increase the transparency and gloss of glass.
Preferably, the raw material components preferred mass percentage is Al2O34-5%, MgO 0.002-0.003%, B2O3
15-17%, CaO 1-2%, K2O 0.005-0.007%, Na2O2-3%, SiO272-75%, Fe2O30.04-0.05%.
Because excessive content can increase the crystallization tendency of glass, and easily make glass embrittlement, its content can narrow down to smaller CaO
Content.And larger Na2O can increase the thermal coefficient of expansion of glass, reduce the heat endurance, chemical stability and machinery of glass
Intensity, therefore keep its less content.
Preferably, in the raw material components, n(Na2O)：n(Al2O3)For 1~1.36.As the Na in glass2O and Al2O3Rub
When you compare the scope more than 1, then form aluminum-oxygen tetrahedron and form continuous Structure Network, stability_intensity with silicon-oxy tetrahedron
It is high.
Preferably, in the raw material components, n(Na2O+K2O)：n(Al2O3)For 1~1.36.K2O effects in glass and Na2O
It is similar, as n in glass(Na2O+K2O)：n(Al2O3)In 1~1.36 scope, aluminum-oxygen tetrahedron and and silicon-oxy tetrahedron can be also formed
Form continuous Structure Network.
The thermal coefficient of expansion for crossing seal glass of the present invention is about 32 to 35x10-7K-1, it is suitable for the mistakes of the metals such as tungsten
Cross sealing-in.This formula glass with the thermal coefficient of expansion close to metal, excellent heat endurance and mechanical strength, be easy into
The advantages that type, moreover it is possible to effectively suppress the formation of micro-crack during use, so as to extend the service life of product.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to limit only to explain the present invention
The fixed present invention.
Preferably go out the formula of embodiment 1~6, method of testing in above-mentioned glass constitutive material preferred mass percentage range
For, thermalexpansioncoefficientα is tested in high-temperature horizontal dilatometer, test result in being shown in Table 1 each raw material components formula be made
Glass coefficient of thermal expansion α.
The high temperature resistant intermediate sealing glass example raw material components formula of 6 embodiments of the present invention of table 1. and its is different hot swollen
Swollen coefficient test result
From table 1 it follows that in embodiment 1~6, the heat of glass made of the glass components of different weight percentage
The coefficient of expansion is satisfied by the requirement of glass-to-metal seal, and such as embodiment 1~4, works as n(Na2O)：n(Al2O3)Or n(Na2O+K2O)：
n(Al2O3)In this scope of 1-1.36, the thermal coefficient of expansion of glass is 32~35 × 10-7K-1Between, and the thermal expansion system of glass
Number is 32~35 × 10-7K-1Between when, now the heat endurance of glass and mechanical strength are preferable, and glass properties is optimal.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (3)
- A kind of 1. intermediate sealing glass, it is characterised in that：Raw material components form as Al by mass percentage2O34~6%, MgO0.001~0.004%, B2O313~17%, CaO1~3%, K2O0.005~0.008%, Na2O2~5%, SiO270~ 75%, Fe2O30.04~0.06%；In the raw material components, by the gauge of material, n(Na2O)：n(Al2O3)For 1~1.36；In the raw material components, by the gauge of material, n(Na2O+K2O)：n(Al2O3)For 1~1.36.
- A kind of 2. intermediate sealing glass according to claim 1, it is characterised in that：The raw material components preferred mass percentage Than for Al2O34~5%, MgO0.001~0.002%, B2O315~17%, CaO1~3%, K2O0.006~0.008%, Na2O2~4%, SiO273~75%, Fe2O30.04~0.05%.
- 3. according to a kind of any described intermediate sealing glass of claim 1 or 2, it is characterised in that：The raw material components are preferred Mass percent is Al2O34.312%, MgO0.002%, B2O316.345%, CaO2.865%, K2O0.006%, Na2O2.767%, SiO273.672%, Fe2O30.04%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650694.8A CN105271756B (en) | 2015-09-30 | 2015-09-30 | A kind of intermediate sealing glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650694.8A CN105271756B (en) | 2015-09-30 | 2015-09-30 | A kind of intermediate sealing glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105271756A CN105271756A (en) | 2016-01-27 |
| CN105271756B true CN105271756B (en) | 2018-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510650694.8A Active CN105271756B (en) | 2015-09-30 | 2015-09-30 | A kind of intermediate sealing glass |
Country Status (1)
| Country | Link |
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| CN (1) | CN105271756B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107759091B (en) * | 2017-10-11 | 2020-08-11 | 福州大学 | Iron oxide-cobaltous oxide externally-doped sealing glass and preparation and use methods thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60033799T2 (en) * | 1999-11-29 | 2007-06-28 | Nippon Electric Glass Co., Ltd., Otsu | WOLFRAM SEAL GLASS |
| DE10035801B4 (en) * | 2000-07-22 | 2008-04-03 | Schott Ag | Borosilicate glass of high chemical resistance and its uses |
| CN1241855C (en) * | 2003-09-08 | 2006-02-15 | 郭柏驿 | Glass for sealing with metal or alloy |
| JP5354445B2 (en) * | 2008-06-25 | 2013-11-27 | 日本電気硝子株式会社 | Glass for metal coating and semiconductor sealing material |
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2015
- 2015-09-30 CN CN201510650694.8A patent/CN105271756B/en active Active
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| CN105271756A (en) | 2016-01-27 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Xiaolin Inventor after: Cai Zhiguo Inventor before: Cai Zhiguo Inventor before: Huang Xiaolin |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191118 Address after: 432900 Industrial Park, Xiaochang Economic Development Zone, Xiaogan, Hubei, China Patentee after: HUBEI KAICHANG PHOTOELECTRIC TECHNOLOGY CO., LTD. Address before: 518000, Shenzhen, Guangdong, Baoan District province Xixiang Industrial Road, No. 3012, West building, veterans building, two floor Patentee before: CAIZ OPTRONICS CORP. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210819 Address after: 514000 Huanshi North Road, Wuliting, Chengbei, Meizhou City, Guangdong Province Patentee after: CAIZ TOPSHINE Ltd. Address before: 432900 Chengnan Industrial Park, Xiaochang Economic Development Zone, Xiaogan City, Hubei Province Patentee before: HUBEI KAICHANG PHOTOELECTRIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |