CN108305729A - A kind of laminated toughened glass insulator and preparation method - Google Patents
A kind of laminated toughened glass insulator and preparation method Download PDFInfo
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- CN108305729A CN108305729A CN201810280228.9A CN201810280228A CN108305729A CN 108305729 A CN108305729 A CN 108305729A CN 201810280228 A CN201810280228 A CN 201810280228A CN 108305729 A CN108305729 A CN 108305729A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/52—Insulators or insulating bodies characterised by their form having cleaning devices
- H01B17/525—Self-cleaning, e.g. by shape or disposition of screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
Abstract
The invention discloses a kind of laminated toughened glass insulator and preparation method, this insulator includes vitreum, chapeau de fer, cement glue.Vitreum is centered on DC toughened glass, outer wrapping aluminosilicate glass or low Pyrex.DC toughened glass includes following raw material：Quartz, aluminium oxide, iron oxide, calcium oxide, magnesia, potassium oxide, sodium oxide molybdena, lithia, boron oxide, titanium dioxide, titanium dioxide coating film layer on glass external surface；Laminated toughened glass insulator of the present invention has high mechanical properties, and the uniformity of tempering is fine, resistance to external force collision, phenomena such as not easily causing unfilled corner, rupture, does not generate cracking；The resistance to temperature difference can avoid glass insulator and reveal phenomenon, and the hard careful no pore in surface is easily self-cleaning, and intensity is high, and anti-pollution sudden strain of a muscle ability is strong and suitable for direct current, to ensureing that the normal operation of electric system is of great significance.
Description
Technical field
The present invention relates to technical field of electricity, specifically a kind of laminated toughened glass insulator and preparation method.
Background technology
Glass insulator is due to good with resistance to electric arc and anti-vibration performance, the features such as non-aging and self-cleaning is good, extensively
It is general to be applied in transmission line of electricity.With the continuous development of science and technology, there is super-pressure, large capacity, the remote and small spy of line loss
The direct current transportation of point has become the trend of electric power industry development.In high pressure, ultrahigh-voltage alternating-current transmission of electricity, the dish type of existing production is outstanding
Hanging tempered glass steel insulator has been widely used, but this dish type suspension type tempered glass steel insulator cannot be straight
It scoops out and is used in super high voltage direct current electricity transmission, this is because dish type suspension type tempered glass steel insulator is defeated applied to superhigh voltage DC
There is also have following point in electricity：First, DC line electric current is different from AC line current, it is defeated in direct current under DC electric field
One Direction Transfer and the local ion aggregation that ion can occur during electricity operation inside toughened glass insulator, to cause tempering
The aging of glass insulator；Second is that reduce toughened glass insulator by the possibility of air breakdown, effectively improve under heavy pollution
The flashover voltage and breakdown voltage of toughened glass insulator, DC circuit move the volume resistance and ion of toughened glass insulator
Shifting rate requires the volume resistance and ionic mobility of toughened glass insulator than alternating current circuit high；It is tempering in DC circuit again
The steel feet of glass insulator in cement interface is than alternating current circuit steel feet cement interface be easier corrode, make steel feet and
The mechanical strength of toughened glass insulator reduces.And the insulator of on-line operation, in the natural environment by sulfur dioxide, nitrogen
The influence of the atmospheric environments such as oxide and graininess dust gradually deposited one layer of dunghill on its surface.In dry weather
In the case of, insulator of these surfaces with dunghill can work normally, but when encountering the wet weathers such as mist, dew, rain,
Pollution severity of insulators object absorbs moisture, makes electrolyte dissolution in pollution layer, ionization, eventually leads to flashover.
Because the invention it is a kind of can with direct current and seem with the laminated toughened glass insulator of fine antifouling work ability
It is particularly important.
Invention content
The purpose of the present invention is to provide a kind of with available direct current and with the lamination steel of fine antifouling work ability
Change glass insulator.
Realizing the specific technical solution of the object of the invention is：
A kind of laminated toughened glass insulator, including vitreum, chapeau de fer and steel feet, the vitreum are insulator body,
Its top center is lug boss, and lower end is full skirt；The vitreum is centered on DC toughened glass, outer wrapping aluminosilicate glass
Or low Pyrex layer；Titanium dioxide coating on the glass external surface.The chapeau de fer is set in the protrusion on vitreum top
In portion, the steel feet is arranged in the endoporus of vitreum full skirt centre bottom；Between chapeau de fer and the lug boss of vitreum, Yi Jigang
It is bonded by one layer of cement glue between the endoporus at the full skirt center of foot and vitreum, chapeau de fer and steel feet and vitreum is secured
Ground is combined together.
The middle layer DC toughened glass thickness 6-7mm, coefficient of expansion 72-78；Outer casing aluminosilicate glass is low
Pyrex thickness 0.6-0.8mm, coefficient of expansion 42-48.
It is coated with the metal zinc oxide coating of high temperature process in the outer surface of chapeau de fer and steel feet.
Locking pin is equipped in the centre bore of chapeau de fer.
A kind of preparation method of laminated toughened glass insulator, the preparation process are：
Step 1: preparing vitreum
(1) raw material of DC toughened glass and aluminosilicate glass or low Pyrex is respectively put into the double-deck melting furnace,
Melt DC toughened glass liquid, 1200 DEG C of fusion temperature, 1150 DEG C of material path temperature in melting furnace upper layer；Melting furnace lower layer melting aluminum
Silica glass or low Pyrex liquid, 1400 DEG C of fusion temperature, 1000 DEG C of material path temperature；
(2) the DC toughened glass liquid for having melted step (1) and a kind of glass metal in aluminosilicate glass or low borosilicate
By the outlet of servo feeding machine, through scissor cut, the center that formed is DC toughened glass liquid, outer wrapping aluminosilicate glass or low
The glass material blank of Pyrex liquid.1000 DEG C of glass material blank temperature is lamination green body；
(3) glass material blank that step (2) obtains is placed in shaping mechanism into lamination glass insulator, 500 DEG C of forming temperature；
(4) the laminated glass insulator that step (3) obtains is sent into liquid cooling bath through conveyer and is annealed to 45 DEG C automatically,
The vitreum of room temperature laminated toughened glass insulator is formed through equipment cold wind again.
Step 2: preparing laminated toughened glass insulator
(1) chapeau de fer and steel feet are taken；
(2) installation locking pin in the centre bore of chapeau de fer；
(3) chapeau de fer and steel feet are bonded and fixed on the vitreum of the toughened glass insulator respectively with cement glue.
After step 1 is prepared into the vitreum of toughened glass insulator, in the glass external surface titanium dioxide coating
Layer.
The chapeau de fer and steel feet appearance taken in step 2 is by high temperature process metal zinc oxide coating.
In step 1, the DC toughened glass raw material is made of following parts by weight：It is 70-72 parts quartzy, aluminium oxide
3-5 parts, 0.2-0.3 parts of iron oxide, 13-15 parts of calcium oxide, 3-4 parts of magnesia, 2-4 parts of potassium oxide, 3-5 parts of sodium oxide molybdena, oxidation
0.2-0.4 parts of lithium, 0.2-0.4 parts of boron oxide, 0.3-0.5 parts of titanium dioxide.
The preparation method of cement glue described in step 2 is：
(1) in parts by weight by 60-75 parts of sulphate aluminium cement, 1-5 parts of lignosulfonates, 1-7 parts of fire resisting swelling agent,
2-5 parts of antifoaming agent, 1-2 parts of retarder, 10-17 parts of mixing of water obtain mixture；
(2) mixture that step (1) obtains is stirred, is stirred 10-30 minutes, temperature is controlled at 20 DEG C, then is carried out
Water curing 3d, it is 30 DEG C that water, which supports temperature, obtains cement glue.
Advantageous effect of the present invention：
(1) vitreum central core is different from surrounding layer material in insulator of the present invention, and the coefficient of expansion is also different, cooling
When, surrounding layer is first shunk, and will form pressure to central core naturally, it is made to generate prestressing force, to achieve the purpose that tempering,
Effect is better than common air hardening steel effect, and the uniformity of tempering is fine, can avoid glass insulator and reveals phenomenon.General tempering
Glass insulator compression is in 100~140MPa, and the compression of glass insulator of the present invention is up to 250~350MPa, more resistant to outer
Power is hit, and phenomena such as not easily causing unfilled corner, rupture, does not generate cracking；The resistance to temperature difference is more than 150 DEG C, and permanent open air use is still bright
Bright as new, the hard careful no pore in surface is easily self-cleaning, and intensity is high, to ensureing that the normal operation of electric system has important meaning
Justice.
(2) vitreum has included boron oxide and aluminium oxide in insulator of the present invention, and titanium dioxide coating on outer surface makes this
Invention insulator dodges ability with very high mechanical strength and with good anti-pollution.
(3) the sterilizing ability cooperation lithia of titanium dioxide inhibits sodium ion, oxidation in vitreum in insulator of the present invention
The One Direction Transfer and localized clusters that potassium and sodium oxide molybdena occur under DC electric field long term improve volume resistivity, delay glass
The aging and failure of glass body can simultaneously use in direct current.
(4) insulator cap of the present invention and steel feet outer surface are coated with the metal zinc oxide coating of high temperature process, improve
Chapeau de fer and steel feet anti-electrocorrosion extend the service life of chapeau de fer and steel feet.
Description of the drawings
Fig. 1 is laminated toughened glass insulator overall structure diagram of the present invention,
Fig. 2 is the structural schematic diagram of the vitreum of laminated toughened glass insulator.
It is marked in figure：1, vitreum, 1.1, DC toughened glass, 1.2, aluminosilicate glass or low Pyrex layer, 2, iron
Cap, 3, steel feet, 4, locking pin, 5, cement glue.
Specific implementation mode
Below in conjunction with Fig. 1-embodiments shown in Fig. 2, the present invention is further elaborated.
A kind of laminated toughened glass insulator, including vitreum 1, chapeau de fer 2 and steel feet 3, the vitreum 1 are insulator master
Body, top center are lug boss, and lower end is full skirt.The vitreum 1 is centered on DC toughened glass 1.1, outer wrapping
Aluminosilicate glass or low Pyrex layer 1.2.1.1 thickness 6-7mm of middle layer DC toughened glass, coefficient of expansion 72-78；Outsourcing
1.2 thickness 0.6-0.8mm of covering layer aluminosilicate glass or low Pyrex, coefficient of expansion 42-48.The vitreum applies on 1 outer surface
Cover titanium dioxide.The chapeau de fer 2 is set on the lug boss on 1 top of vitreum, and the steel feet 3 is arranged in 1 full skirt of vitreum
In the endoporus of heart bottom.The endoporus between chapeau de fer 2 and the lug boss of the vitreum 1 and full skirt center of steel feet 3 and vitreum 1
Between bonded by one layer of cement glue 5, chapeau de fer 2 and steel feet 3 are firmly combined together with vitreum 1.In chapeau de fer 2
It is equipped with locking pin 4 in centre bore, is used for and the steel feet 3 of a upper insulator is connected and fixed.In the outer surface of chapeau de fer 2 and steel feet 3
It is coated with the metal zinc oxide coating of high temperature process.
Embodiment 1
A kind of laminated toughened glass insulator, the vitreum cross section structure are：Outer casing aluminosilicate glass thickness
0.6mm, the coefficient of expansion 42；Middle layer DC toughened glass thickness 6mm, the coefficient of expansion 72；It is applied on the glass external surface
Cover titanium dioxide；DC toughened glass component by weight includes following raw material：65 parts of quartz, 2 parts of aluminium oxide, iron oxide
0.1 part, 10 parts of calcium oxide, 1 part of magnesia, 1 part of potassium oxide, 1 part of sodium oxide molybdena, 0.1 part of lithia, 0.1 part of boron oxide, titanium dioxide
0.3 part of titanium.
The preparation method of the vitreum is：
(1) glass raw material is put into the double-deck melting furnace, DC toughened glass liquid, fusion temperature are melted in melting furnace upper layer
1200 DEG C, 1150 DEG C of material path temperature；Aluminosilicate glass glass metal, 1400 DEG C of fusion temperature, material path temperature are melted in melting furnace lower layer
1000℃；
(2) the DC toughened glass liquid for having melted step (1) and a kind of glass metal in aluminosilicate glass or low borosilicate
By the outlet of servo feeding machine, through scissor cut, the center that formed is DC toughened glass liquid, outer wrapping aluminosilicate glass or low
The glass material blank of Pyrex liquid.1000 DEG C of glass material blank temperature is lamination green body.
(3) glass material blank that step (2) obtains is placed in shaping mechanism into lamination glass insulator, 500 DEG C of forming temperature.
(4) the laminated glass insulator that step (3) obtains is sent into liquid cooling bath through conveyer and is annealed to 45 DEG C automatically,
Again room temperature laminated toughened glass insulator is formed through equipment cold wind.
A kind of method preparing the laminated toughened glass insulator is further comprising the steps of：(1) chapeau de fer and steel feet are led to
It crosses cement glue to be bonded and fixed on vitreum, vitreum is set to another glass insulation by (2) by the inner hole sleeve of chapeau de fer
Son steel feet and by the locking pin locked, obtain laminated toughened glass insulator.
The preparation method of the cement glue is：(1) in parts by weight by 60 parts of sulphate aluminium cement, lignin sulfonic acid
1 part of salt, 1 part of fire resisting swelling agent, 2 parts of antifoaming agent, 2 parts of retarder, 17 parts of mixing of water obtain mixture；(2) step (1) is obtained
To mixture be stirred, stir 30 minutes, temperature is controlled at 20 DEG C, then carries out water curing 3d, and it is 30 DEG C that water, which supports temperature, is obtained
To cement glue.
Embodiment 2
Vitreum cross section structure is described in a kind of laminated toughened glass insulator：The low Pyrex thickness of outer casing
0.8mm, the coefficient of expansion 48；Middle layer DC toughened glass thickness 7mm, the coefficient of expansion 78；It is applied on the glass external surface
Cover titanium dioxide；DC toughened glass component by weight includes following raw material：75 parts of quartz, 5 parts of aluminium oxide, iron oxide
0.4 part, 15 parts of calcium oxide, 5 parts of magnesia, 5 parts of potassium oxide, 8 parts of sodium oxide molybdena, 0.5 part of lithia, 0.5 part of boron oxide, titanium dioxide
1 part of titanium.
The preparation method of the vitreum, the preparation method of laminated toughened glass insulator are same as Example 1.
The preparation method of the cement glue is：(1) in parts by weight by 75 parts of sulphate aluminium cement, lignin sulfonic acid
5 parts of salt, 7 parts of fire resisting swelling agent, 2 parts of antifoaming agent, 2 parts of retarder, 10 parts of mixing of water obtain mixture；(2) step (1) is obtained
To mixture be stirred, stir 30 minutes, temperature is controlled at 20 DEG C, then carries out water curing 3d, and it is 30 DEG C that water, which supports temperature, is obtained
To cement glue.
Embodiment 3
A kind of laminated toughened glass insulator, the vitreum cross section structure are：Outer casing aluminosilicate glass thickness of glass
0.7mm, the coefficient of expansion 45；Middle layer DC toughened glass thickness 6mm, the coefficient of expansion 75；It is applied on the glass external surface
Cover titanium dioxide；DC toughened glass component by weight includes following raw material：70 parts of quartz, 3 parts of aluminium oxide, iron oxide
0.2 part, 13 parts of calcium oxide, 3 parts of magnesia, 2 parts of potassium oxide, 3 parts of sodium oxide molybdena, 0.2 part of lithia, 0.2 part of boron oxide, titanium dioxide
0.3 part of titanium.
The preparation method of the vitreum, the preparation method of laminated toughened glass insulator are same as Example 1.
The preparation method of the cement glue is：(1) in parts by weight by 60 parts of sulphate aluminium cement, lignin sulfonic acid
5 parts of salt, 7 parts of fire resisting swelling agent, 2 parts of antifoaming agent, 2 parts of retarder, 10 parts of mixing of water obtain mixture；(2) step (1) is obtained
To mixture be stirred, stir 30 minutes, temperature is controlled at 20 DEG C, then carries out water curing 3d, and it is 30 DEG C that water, which supports temperature, is obtained
To cement glue.
Embodiment 4
A kind of laminated toughened glass insulator, the vitreum cross section structure are：The low Pyrex thickness of outer casing
0.6mm, the coefficient of expansion 42；Middle layer DC toughened glass thickness 7mm, the coefficient of expansion 78；It is applied on the glass external surface
Cover titanium dioxide；DC toughened glass component by weight includes following raw material：72 parts of quartz, 3 parts of aluminium oxide, iron oxide
0.3 part, 15 parts of calcium oxide, 4 parts of magnesia, 4 parts of potassium oxide, 5 parts of sodium oxide molybdena, 0.4 part of lithia, 0.4 part of boron oxide, titanium dioxide
0.5 part of titanium.
The preparation method of the vitreum, the preparation method of laminated toughened glass insulator are same as Example 1.
The preparation method of the cement glue is：(1) in parts by weight by 60 parts of sulphate aluminium cement, lignin sulfonic acid
1 part of salt, 1 part of fire resisting swelling agent, 5 parts of antifoaming agent, 2 parts of retarder, 17 parts of mixing of water obtain mixture；(2) step (1) is obtained
To mixture be stirred, stir 10 minutes, temperature is controlled at 20 DEG C, then carries out water curing 3d, and it is 30 DEG C that water, which supports temperature, is obtained
To cement glue.
Embodiment 5
A kind of laminated toughened glass insulator, the vitreum cross section structure are：Outer casing aluminosilicate glass thickness of glass
0.7mm, the coefficient of expansion 45；Middle layer DC toughened glass thickness 6mm, the coefficient of expansion 75；It is applied on the glass external surface
Cover titanium dioxide；DC toughened glass component by weight includes following raw material：71 parts of quartz, 4 parts of aluminium oxide, iron oxide
0.3 part, 14 parts of calcium oxide, 3 parts of magnesia, 3 parts of potassium oxide, 4 parts of sodium oxide molybdena, 0.2 part of lithia, 0.2 part of boron oxide, titanium dioxide
0.3 part of titanium.
The preparation method of the vitreum, the preparation method of laminated toughened glass insulator are same as Example 1.
The preparation method of the cement glue is：
(1) in parts by weight by 75 parts of sulphate aluminium cement, 5 parts of lignosulfonates, 7 parts of fire resisting swelling agent, antifoaming agent 5
Part, 1 part of retarder, 17 parts of mixing of water obtain mixture；(2) mixture that step (1) obtains is stirred, stirs 10 points
Clock, temperature is controlled at 20 DEG C, then carries out water curing 3d, and it is 30 DEG C that water, which supports temperature, obtains cement glue.
Comparative example 1：Difference with embodiment 1 is that boron oxide is not added in vitreum, other preparation conditions and method and reality
It is identical to apply example 1.
Comparative example 2：Difference with embodiment 1 is that lithia is not added in vitreum, other preparation conditions and method and reality
It is identical to apply example 1.
Comparative example 3：Difference with embodiment 1 is that potassium oxide is not added in vitreum, other preparation conditions and method and reality
It is identical to apply example 1.
Comparative example 4：Difference with embodiment 1 is vitreum not in outer surface titanium dioxide coating, other preparation conditions and
Method is same as Example 1.
Comparative example 5 is commercially available laminated toughened glass insulator.
Now by embodiment 1-5 insulators and 5 insulator trial operation of comparative example the salt lake breeze area electricity high in western salt alkali content
Gasify on railway, is detected within nearly 2 years time, data see the table below 1
Table 1
There is not electric discharge and pollution flashover phenomenon by 1 visible embodiment 1-5 of table, surface filth total weight is far below comparative example 5
138g, embodiment 1-5 tensile strength is far above the 4.5KN of comparative example 5, illustrates that there is the present invention fine anti-pollution to dodge ability and very
High mechanical strength；Wherein 5 surface filth weight of embodiment is that 120g is less than other embodiment and comparative example, and mechanical strength is
5.6KN is higher than other embodiment and comparative example, it is seen that embodiment 5 is optimal case.
The mechanical strength that embodiment 1-5 and comparative example 1-5 are detected using mechanical strength detector, as a result see the table below 2
Table 2
| Mechanical strength/KN | |
| Embodiment 1 | 5.4 |
| Embodiment 2 | 5.5 |
| Embodiment 3 | 5.3 |
| Embodiment 4 | 5.2 |
| Embodiment 5 | 5.6 |
| Comparative example 1 | 4.5 |
| Comparative example 2 | 4.3 |
| Comparative example 3 | 4.4 |
| Comparative example 4 | 4.2 |
| Comparative example 5 | 4.5 |
Comparative example 1-5 is far above by the mechanical strength of 2 visible embodiment 1-5 of table, it is fine to illustrate that insulator of the present invention has
Mechanical strength；It is compared by comparative example 1-3 and embodiment 1 as it can be seen that when boron oxide, oxygen are not added in insulator glass body of the present invention
When changing lithium or potassium oxide, the mechanical strength of insulator does not improve, and is compared by comparative example 4 and embodiment 1 visible not in vitreum
The mechanical strength of insulator does not improve when the coating silicon dioxide film layer of outer surface, illustrates that oxygen is added in vitreum in the present invention
Change boron, lithia and oxidation clock and reaches raising insulator mechanical strength in the cooperation of glass external surface coating silicon dioxide film layer
Effect.
Pressure is answered using tension gauge detection embodiment 1-5 and comparative example 1-5, as a result see the table below 3
Table 3
| Answer pressure/KPa | |
| Embodiment 1 | 280 |
| Embodiment 2 | 296 |
| Embodiment 3 | 339 |
| Embodiment 4 | 297 |
| Embodiment 5 | 353 |
| Comparative example 1 | 251 |
| Comparative example 2 | 228 |
| Comparative example 3 | 236 |
| Comparative example 4 | 223 |
| Comparative example 5 | 135 |
Pressure is answered to be far above comparative example 1-5 by 2 visible embodiment 1-5 of table, it can by comparative example 1-3 and the comparison of embodiment 1
See, when boron oxide, lithia or potassium oxide are not added in insulator glass body of the present invention, insulator answers pressure not carry
Height answers pressure by what comparative example 4 and embodiment 1 compared the visible insulator not in glass external surface coating silicon dioxide film layer
It does not improve, illustrate that boron oxide, lithia and potassium oxide are added in vitreum in the present invention and is coated in glass external surface
Silica coating cooperation achievees the effect that improving insulator answers pressure.
Above example only illustrates embodiment of the present invention, and there is no have limitation in any form to the present invention；Appoint
What is engaged in professional and technical personnel, all has the ability to make some changes or modification using the technology contents disclosed, becomes equivalent
The equivalent embodiment of variation carries out simple modification, equivalent change and modification to the present invention, belongs to according to the technology of the present invention essence
In the range of technical solution of the present invention.
Claims (10)
1. a kind of laminated toughened glass insulator, including vitreum (1), chapeau de fer (2) and steel feet (3), the vitreum (1) is exhausted
Edge main body, top center are lug boss, and lower end is full skirt；It is characterized in that：The vitreum (1) is with once-through type tempering glass
Centered on glass (1.1), outer wrapping aluminosilicate glass or low Pyrex layer (1.2)；The chapeau de fer (2) is set in vitreum (1) top
On the lug boss at end, the steel feet (3) is arranged in the endoporus of vitreum (1) full skirt centre bottom；Chapeau de fer (2) and vitreum
(1) by one layer of cement glue between the endoporus between the lug boss and full skirt center of steel feet (3) and vitreum (1)
(5) it bonds, chapeau de fer (2) and steel feet (3) is firmly combined together with vitreum (1).
2. insulator according to claim 1, it is characterised in that：Middle layer DC toughened glass (1.1) thickness
6-7mm, coefficient of expansion 72-78；Outer casing aluminosilicate glass or low Pyrex (1.2) thickness 0.6-0.8mm, the coefficient of expansion
42-48。
3. insulator according to claim 1, it is characterised in that：Titanium dioxide coating on vitreum (1) outer surface.
4. insulator according to claim 1, it is characterised in that：It is coated in the outer surface of chapeau de fer (2) and steel feet (3)
The metal zinc oxide coating of high temperature process.
5. insulator according to claim 1, it is characterised in that：Locking pin (4) is equipped in the centre bore of chapeau de fer (2).
6. a kind of preparation method of laminated toughened glass insulator, which is characterized in that the preparation process is：
Step 1: preparing vitreum
(1) raw material of DC toughened glass and aluminosilicate glass or low Pyrex is respectively put into the double-deck melting furnace, is melted
Melt DC toughened glass liquid, 1200 DEG C of fusion temperature, 1150 DEG C of material path temperature in stove upper layer；Melting furnace lower layer melting aluminum silicon glass
Glass or low Pyrex liquid, 1400 DEG C of fusion temperature, 1000 DEG C of material path temperature；
(2) the DC toughened glass liquid that step (1) has melted is passed through with a kind of glass metal in aluminosilicate glass or low borosilicate
The outlet of servo feeding machine, through scissor cut, the center that formed is DC toughened glass liquid, outer wrapping aluminosilicate glass or low borosilicate
The glass material blank of glass metal.1000 DEG C of glass material blank temperature is lamination green body；
(3) glass material blank that step (2) obtains is placed in shaping mechanism into lamination glass insulator, 500 DEG C of forming temperature；
(4) the laminated glass insulator that step (3) obtains is sent into liquid cooling bath through conveyer and is annealed to 45 DEG C automatically, then passed through
Equipment cold wind forms the vitreum of room temperature laminated toughened glass insulator.
Step 2: preparing laminated toughened glass insulator
(1) chapeau de fer and steel feet are taken；
(2) installation locking pin in the centre bore of chapeau de fer；
(3) chapeau de fer and steel feet are bonded and fixed on the vitreum of the toughened glass insulator respectively with cement glue.
7. the preparation method of laminated toughened glass insulator according to claim 6, which is characterized in that prepared in step 1
After the vitreum of toughened glass insulator, in the glass external surface titanium dioxide coating layer.
8. the preparation method of laminated toughened glass insulator according to claim 6, which is characterized in that the institute in step 2
The chapeau de fer and steel feet appearance taken is by high temperature process metal zinc oxide coating.
9. the preparation method of laminated toughened glass insulator according to claim 6, which is characterized in that in step 1,
The DC toughened glass raw material is made of following parts by weight：It is 70-72 parts quartzy, 3-5 parts of aluminium oxide, iron oxide 0.2-0.3
Part, 13-15 parts of calcium oxide, 3-4 parts of magnesia, 2-4 parts of potassium oxide, 3-5 parts of sodium oxide molybdena, 0.2-0.4 parts of lithia, boron oxide
0.2-0.4 parts, 0.3-0.5 parts of titanium dioxide.
10. the preparation method of laminated toughened glass insulator according to claim 6, which is characterized in that it is characterized in that,
The preparation method of cement glue described in step 2 is：
(1) in parts by weight by 60-75 parts of sulphate aluminium cement, 1-5 parts of lignosulfonates, 1-7 parts of fire resisting swelling agent, defoaming
2-5 parts of agent, 1-2 parts of retarder, 10-17 parts of mixing of water obtain mixture；
(2) mixture that step (1) obtains is stirred, is stirred 10-30 minutes, temperature is controlled at 20 DEG C, then is carried out water and supported
3d is protected, it is 30 DEG C that water, which supports temperature, obtains cement glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111724953A (en) * | 2020-06-28 | 2020-09-29 | 三瑞科技(江西)有限公司 | Forming and toughening production of toughened glass insulator |
| CN111724951A (en) * | 2020-06-28 | 2020-09-29 | 三瑞科技(江西)有限公司 | Production process of toughened glass insulator |
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