CN108516700B - Processing technology of high-strength toughened glass - Google Patents
Processing technology of high-strength toughened glass Download PDFInfo
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- CN108516700B CN108516700B CN201810257771.7A CN201810257771A CN108516700B CN 108516700 B CN108516700 B CN 108516700B CN 201810257771 A CN201810257771 A CN 201810257771A CN 108516700 B CN108516700 B CN 108516700B
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- glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
the invention provides a processing technology of high-strength toughened glass, which comprises the following steps: s1 preparing two pieces of glass; s2, bending the spacing aluminum strip and placing the bent spacing aluminum strip between two pieces of glass; s3, carrying out first sealing operation on the two pieces of glass; s4, evacuating air in the hollow layer; s5, filling nitrogen into the hollow layer until the pressure in the hollow layer is 170 and 200 MPa; s6, carrying out second sealing operation on the two pieces of glass to obtain hollow glass; s7, putting the hollow glass into a preheating furnace and heating to 280-370 ℃; s8, transferring the hollow glass to a salt tank at the temperature of 380-420 ℃ for ion exchange; s9, taking out the hollow glass from the salt tank, transferring the hollow glass to an annealing furnace with the initial temperature of 430-450 ℃ for annealing to normal temperature, and obtaining the high-strength toughened glass. The process is suitable for preparing toughened glass with thickness greater than 6mm, and the prepared glass has high strength and impact resistance raised by over 10 times compared with common glass.
Description
Technical Field
The invention relates to the technical field of glass deep processing, in particular to a processing technology of high-strength toughened glass.
background
the toughened glass has the advantages of high impact strength, excellent temperature shock resistance, good safety and the like, and is widely applied to the fields of automobiles, buildings, industry and the like. The toughened glass is a prestressed glass, and in order to improve the strength of the glass, a chemical or physical method is generally used to form a compressive stress on the surface of the glass, and when the glass bears an external force, the surface stress is firstly counteracted, so that the bearing capacity is improved, and the tensile strength of the glass is improved. The chemical method for preparing the toughened glass changes the surface components of the glass by an ion exchange method, so that a compressive stress layer is formed on the surface of the glass, and the toughened glass prepared by the chemical method generally has high impact strength which is 5-10 times higher than that of common plate glass. The chemical method for preparing the toughened glass is suitable for preparing the glass with thinner thickness because the chemical components of the two surfaces of the common glass are changed, the inner layer is not changed, and the tensile stress is not generated, and the strength of the toughened glass prepared by the chemical method is not high for the toughened glass with the thickness of more than 6 mm.
Disclosure of Invention
aiming at the problems, the invention provides a processing technology of high-strength toughened glass, which is suitable for preparing toughened glass with the thickness of more than 6mm, and the prepared glass has high strength and the impact resistance of the prepared glass is improved by more than 10 times compared with common glass.
in order to achieve the purpose, the invention is solved by the following technical scheme:
a processing technology of high-strength toughened glass comprises the following steps:
S1, cutting and polishing two pieces of glass into glass with the same size, cleaning and drying the glass for later use;
s2, preparing spacing aluminum strips, bending the spacing aluminum strips, and placing the bent spacing aluminum strips between two pieces of glass;
s3, carrying out first sealing operation on the two pieces of glass, and drying to form first sealing glue;
s4, forming a hole a and a hole b on the first sealing glue, and filling nitrogen into the hole a until the air in the hollow layer is emptied;
s5, plugging the hole b with a super glue, continuously filling nitrogen into the hole a until the internal pressure of the hollow layer is 170 and 200MPa, and plugging the hole a with the super glue;
s6, carrying out second sealing operation on the two pieces of glass, and drying to form second sealant to obtain hollow glass;
S7, putting the hollow glass into a preheating furnace and heating to 280-370 ℃;
S8, transferring the hollow glass to a salt tank at the temperature of 380-420 ℃ for ion exchange;
s9, taking out the hollow glass from the salt tank, transferring the hollow glass to an annealing furnace with the initial temperature of 430-450 ℃ for annealing to normal temperature, and obtaining the high-strength toughened glass.
specifically, the thickness of the glass in the step S1 is 2-4 mm.
specifically, the first sealant and the second sealant are both silicone sealants.
Specifically, the super glue is epoxy crystal glue.
specifically, the salt tank contains potassium salt.
Specifically, the ion exchange time in the step S8 is 4-8 h.
Specifically, the thickness of the high-strength tempered glass in the step S9 is 6 to 12 mm.
The invention has the beneficial effects that:
Firstly, preparing hollow glass, filling compressed nitrogen into a hollow layer, generating tensile stress on the inner layer of the glass, then carrying out ion exchange on two surfaces of the hollow glass by an ion exchange method, converting Na + into K +, and generating compressive stress on two sides of the glass, wherein the glass is similar to the principle of toughened glass prepared by a physical method, and firstly offsetting surface stress when bearing external force, so that the bearing capacity is improved, and the wind pressure resistance, the cold and summer heat resistance, the impact resistance and the like of the glass are enhanced;
secondly, the toughened glass prepared by the invention has a hollow layer, and can improve the sound insulation performance and the heat insulation performance of the glass.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to provide a further understanding of the nature and technical means of the invention, as well as the specific objects and functions attained by the invention.
example 1:
A processing technology of high-strength toughened glass comprises the following steps:
S1, cutting and polishing two pieces of glass with the thickness of 2mm into glass with the same size, cleaning and drying the glass for later use;
S2, preparing spacing aluminum strips with the height of 2mm, bending the spacing aluminum strips, and placing the bent spacing aluminum strips between two pieces of glass;
s3, carrying out first sealing operation on the two pieces of glass, and drying to form first sealing glue;
S4, forming a hole a and a hole b on the first sealing glue, and filling nitrogen into the hole a until the air in the hollow layer is emptied;
S5, plugging the hole b with a super glue, continuously filling nitrogen into the hole a until the internal pressure of the hollow layer is 170 and 200MPa, and plugging the hole a with the super glue;
s6, carrying out second sealing operation on the two pieces of glass, and drying to form second sealant to obtain hollow glass;
s7, putting the hollow glass into a preheating furnace and heating to 280-370 ℃;
S8, transferring the hollow glass to a salt tank at the temperature of 380-420 ℃ for ion exchange, wherein the ion exchange time is 4 h;
s9, taking out the hollow glass from the salt tank, transferring the hollow glass to an annealing furnace with the initial temperature of 430-450 ℃ for annealing to normal temperature, and obtaining the high-strength toughened glass with the thickness of 6 mm.
Preferably, the first sealant and the second sealant are both silicone sealants.
Preferably, the super glue is epoxy crystal glue.
preferably, the salt tank contains potassium salt, and the potassium salt is one of potassium nitrate and potassium chloride.
Example 2:
A processing technology of high-strength toughened glass comprises the following steps:
s1, cutting and polishing two pieces of glass with the thickness of 3mm into glass with the same size, cleaning and drying the glass for later use;
S2, preparing spacing aluminum strips with the height of 2mm, bending the spacing aluminum strips, and placing the bent spacing aluminum strips between two pieces of glass;
S3, carrying out first sealing operation on the two pieces of glass, and drying to form first sealing glue;
S4, forming a hole a and a hole b on the first sealing glue, and filling nitrogen into the hole a until the air in the hollow layer is emptied;
S5, plugging the hole b with a super glue, continuously filling nitrogen into the hole a until the internal pressure of the hollow layer is 170 and 200MPa, and plugging the hole a with the super glue;
S6, carrying out second sealing operation on the two pieces of glass, and drying to form second sealant to obtain hollow glass;
S7, putting the hollow glass into a preheating furnace and heating to 280-370 ℃;
s8, transferring the hollow glass to a salt tank at the temperature of 380-420 ℃ for ion exchange, wherein the ion exchange time is 6 h;
S9, taking out the hollow glass from the salt tank, transferring the hollow glass to an annealing furnace with the initial temperature of 430-450 ℃ for annealing to normal temperature, and obtaining the high-strength toughened glass with the thickness of 8 mm.
preferably, the first sealant and the second sealant are both silicone sealants.
Preferably, the super glue is epoxy crystal glue.
preferably, the salt tank contains potassium salt, and the potassium salt is one of potassium nitrate and potassium chloride.
Comparative example 1:
A1, placing ordinary glass with the thickness of 6mm into a preheating furnace to be heated to 280-370 ℃;
a2 transferring the common glass to a salt tank at 380-420 ℃ for ion exchange, wherein the ion exchange time is 4 h;
A3 taking out the ordinary glass from the salt tank, transferring the ordinary glass to an annealing furnace with the initial temperature of 430-450 ℃ for annealing to normal temperature, and obtaining the ordinary toughened glass with the thickness of 6 mm.
preferably, the salt tank contains potassium salt, and the potassium salt is one of potassium nitrate and potassium chloride.
Comparative example 2:
a1, putting ordinary glass with the thickness of 8mm into a preheating furnace and heating to 280-370 ℃;
a2 transferring the common glass to a salt tank at 380-420 ℃ for ion exchange, wherein the ion exchange time is 6 h;
A3 taking out the ordinary glass from the salt tank, transferring the ordinary glass to an annealing furnace with the initial temperature of 430-450 ℃ for annealing to normal temperature, and obtaining the ordinary toughened glass with the thickness of 8 mm.
preferably, the salt tank contains potassium salt, and the potassium salt is one of potassium nitrate and potassium chloride.
The tempered glass obtained in the above examples 1 to 2 and comparative examples 1 to 2 was subjected to mechanical property tests, and the results of the properties are shown in the following table 1.
TABLE 1 test results
| Example 1 | comparative example 1 | example 2 | Comparative example 2 | |
| Impact strength (MPa) | 952 | 722 | 1141 | 927 |
| flexural strength (MPa) | 743 | 610 | 967 | 811 |
Observing the test results in table 1, the impact strength and bending strength of the tempered glass prepared by the processing method of the invention are improved under the same thickness in comparative example 1 and comparative example 1, and in example 2 and comparative example 2.
The above examples only show two embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. The processing technology of the high-strength toughened glass is characterized by comprising the following steps of:
S1, cutting and polishing two pieces of glass into glass with the same size, cleaning and drying the glass for later use;
s2, preparing spacing aluminum strips, bending the spacing aluminum strips, and placing the bent spacing aluminum strips between two pieces of glass;
S3, carrying out first sealing operation on the two pieces of glass, and drying to form first sealing glue;
S4, forming a hole a and a hole b on the first sealing glue, and filling nitrogen into the hole a until the air in the hollow layer is emptied;
S5, plugging the hole b with a super glue, continuously filling nitrogen into the hole a until the internal pressure of the hollow layer is 170 and 200MPa, and plugging the hole a with the super glue;
s6, carrying out second sealing operation on the two pieces of glass, and drying to form second sealant to obtain hollow glass;
S7, putting the hollow glass into a preheating furnace and heating to 280-370 ℃;
S8, transferring the hollow glass to a salt tank at the temperature of 380-420 ℃ for ion exchange;
S9, taking out the hollow glass from the salt tank, transferring the hollow glass to an annealing furnace with the initial temperature of 430-450 ℃ for annealing to normal temperature, and obtaining the high-strength toughened glass.
2. the process of claim 1, wherein the glass in the step S1 has a thickness of 2-4 mm.
3. the process of claim 1, wherein the first sealant and the second sealant are silicone sealants.
4. The process according to claim 1, wherein the super glue is epoxy crystal glue.
5. The process according to claim 1, wherein the salt bath contains a potassium salt.
6. The process of claim 1, wherein the ion exchange time in step S8 is 4-8 h.
7. the process of claim 1, wherein the thickness of the high strength tempered glass in the step S9 is 6-12 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810257771.7A CN108516700B (en) | 2018-03-27 | 2018-03-27 | Processing technology of high-strength toughened glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810257771.7A CN108516700B (en) | 2018-03-27 | 2018-03-27 | Processing technology of high-strength toughened glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108516700A CN108516700A (en) | 2018-09-11 |
| CN108516700B true CN108516700B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810257771.7A Expired - Fee Related CN108516700B (en) | 2018-03-27 | 2018-03-27 | Processing technology of high-strength toughened glass |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351432Y (en) * | 1997-09-18 | 1999-12-01 | 上海华鹰技术玻璃有限公司 | High heat insulation and sound-proofing hollow glass |
| CN2634076Y (en) * | 2003-07-18 | 2004-08-18 | 何斌 | Low heat transfer hollow coposite fog-proof glass |
| WO2014163158A1 (en) * | 2013-04-03 | 2014-10-09 | 旭硝子株式会社 | Double glazing for building window |
| CN104291691B (en) * | 2014-09-03 | 2016-12-07 | 宁波市合鑫玻璃科技有限公司 | A kind of processing technique of bending aluminum strip double-silver LOW-E double glazing |
| CN104291690A (en) * | 2014-09-03 | 2015-01-21 | 宁波市合鑫玻璃科技有限公司 | Processing technique for bent aluminum strip hollow glass |
| CN109715579A (en) * | 2016-03-14 | 2019-05-03 | 康宁股份有限公司 | Pre-stamped glassware |
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- 2018-03-27 CN CN201810257771.7A patent/CN108516700B/en not_active Expired - Fee Related
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Granted publication date: 20191210 |