CN113916067B - Reinforced glass projectile and production method and application thereof - Google Patents
Reinforced glass projectile and production method and application thereof Download PDFInfo
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- CN113916067B CN113916067B CN202111222303.4A CN202111222303A CN113916067B CN 113916067 B CN113916067 B CN 113916067B CN 202111222303 A CN202111222303 A CN 202111222303A CN 113916067 B CN113916067 B CN 113916067B
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- 239000011521 glass Substances 0.000 title claims abstract description 114
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000008188 pellet Substances 0.000 claims description 47
- 239000002245 particle Substances 0.000 claims description 14
- 238000005496 tempering Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 229910052593 corundum Inorganic materials 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 7
- 239000010431 corundum Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 235000010333 potassium nitrate Nutrition 0.000 claims description 4
- 239000004323 potassium nitrate Substances 0.000 claims description 4
- 238000009966 trimming Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000004031 devitrification Methods 0.000 claims description 2
- 238000001802 infusion Methods 0.000 claims description 2
- 230000002045 lasting effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000013081 microcrystal Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000006060 molten glass Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 1
- 239000005341 toughened glass Substances 0.000 abstract description 13
- 239000005340 laminated glass Substances 0.000 abstract description 10
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000006058 strengthened glass Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000005336 safety glass Substances 0.000 description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- YEAUATLBSVJFOY-UHFFFAOYSA-N tetraantimony hexaoxide Chemical compound O1[Sb](O2)O[Sb]3O[Sb]1O[Sb]2O3 YEAUATLBSVJFOY-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
-
- 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
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0009—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing silica as main constituent
-
- 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
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0018—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Dispersion Chemistry (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses an enhanced glass projectile and a production method and application thereof, belonging to the technical field of emergency rescue; according to the production method of the reinforced glass projectile, the prepared reinforced glass projectile can break through the laminated glass; the injury to site personnel caused by scattering of metal shots can be avoided; aiming at the problem that glass, especially toughened glass, semi-toughened glass, laminated glass, is difficult to break and fold rapidly under the emergency rescue condition of a window and a curtain wall, reinforced glass shots are ejected at high speed by using high-pressure air or high-pressure water or ejector as power to impact and puncture the glass window, the glass curtain wall and the like so as to break and fold rapidly, thereby being convenient and rapid to develop and rescue.
Description
Technical Field
The invention belongs to the technical field of emergency rescue, and particularly relates to a production method and an application method of reinforced glass pellets.
Background
With the development of cities, glass, particularly toughened glass, semi-toughened glass (heat-reinforced glass) and laminated glass are increasingly applied to vehicles such as high-rise buildings or automobiles, but in emergency rescue, the impact strength of the safety glass such as the toughened glass is 3-5 times that of the common glass, the bending strength is 3-5 times that of the common glass, the glass structures are difficult to break rapidly, the timely expansion of rescue actions is seriously influenced, and the difficulty of on-site rescue is increased.
The main method for breaking glass windows and glass curtain walls in emergency at present depends on a specific ejector to launch or manually throw sharp objects, if the sharp objects are thrown by metal shots, the sharp objects are easy to cause injury to field personnel; if thrown, of ordinary inorganic materials, such as stones, glass, ceramics, even if sharp, due to their density generally less than or equal to 2.45g/cm3; the breaking speed and the effect are seriously affected; in particular, it is highlighted that there is no effective way to break the laminated safety glass rapidly.
Studies have shown that the use of glass pellets breaks these glass structures, such as glass windows, glass curtain walls, the penetration force of which is mainly determined by its strength, mass, cross-sectional density, the speed at which it hits the object and the concentration of the hit area; the greater the strength and the greater the mass of the projectile, the greater the density, the higher the energy at the same speed, the higher the penetration force, and the higher the storage speed after flying; the higher the symmetry of the projectile geometry, the lower the ejection resistance and the better the flying speed.
Disclosure of Invention
Object of the Invention
Provides a reinforced glass pellet for rapid breaking of glass, especially toughened glass, semi-toughened glass (heat reinforced glass) and laminated glass and a production method thereof.
Technical proposal
An enhanced glass projectile characterized in that: the glass pellets are microcrystalline glass pellets, and comprise one or more components selected from Mg2+, zn2+, ti4+, V5+, mn2+, F-, S2-, and P5+, so that the glass is easy to phase-separate or crystallize; the density of the reinforced glass pellets is more than or equal to 2.45g/cm < 3 >, the Mohs hardness is more than 5, and the compressive strength is more than 90MPa by selecting a glass system and controlling the oxide components of the reinforced glass pellets in chemical composition, so that the penetration force of the glass pellets is improved.
The glass projectile comprises one or more of silicate glass, aluminosilicate and borosilicate in the oxide composition range, wherein the main oxide composition range (mass percent) is as follows:
SiO2＝7.50％-81％；B2O3＝0％-14.5％；Na2O+K2O+Li2O＝5.0％-15％；Al2O3＝0.5％-20.0％；CaO+MgO＝8％-25.0％；TiO2＝0-36％；MnO+BaO＝0-50％；＝0-15.0％；Cr2O3+Fe2O3＝0-14％；Sb2O3＝0-0.6％；ZrO2＝0-2.8％；P2O5＝0-1.0％；F＝0-3.5％；S＝0-1.5％。
a method for producing reinforced glass pellets, comprising the steps of:
(1) And (3) batching:
weighing a plurality of raw materials according to the oxide composition conversion raw material formula, and uniformly mixing;
(2) Melting:
putting the prepared raw materials into a glass melting furnace, and melting the raw materials into uniform glass liquid without visible bubbles, infusions, separation phases or devitrification at 1350-1600 ℃;
(3) Shaping:
leading out molten glass from a feed channel to form a continuous flow which flows into a die, wherein the die is provided with a single row or a plurality of rows of polyhedral or hemispherical concave pits, and the depth of the pits is 3-30mm; the glass liquid flow is pressed and clung to the concave pit wall of the mould, and a single-sided convex or double-sided convex continuous blank is formed by pressing; the glass liquid is changed into a plastic state from a viscous liquid state, then is changed into a blank sheet with a fixed shape, and is sent into a material collecting box through a mesh belt conveyor to be accumulated and cooled slowly;
(4) Blank sheet edge removal:
the cooled blank sheet is sent to an edge grinding machine for grinding, the blank sheet is crushed into single blank particles and edge residues under the action of mechanical force by utilizing the characteristic that the strength of the blank particles is larger than the gap between the blank particles, and the blank particles and the edge residues are separated by a sieving machine;
(5) Trimming:
feeding the blank particles or a certain amount of grinding agent into a rotating metal cylinder for repeated rotating and rolling, removing residual slag on the blank particles, and trimming the edges of the blank particles;
(6) And (3) fine grinding:
grinding the surface of the trimmed blank by using a grinder to sharpen edges and angles of the blank so as to obtain reinforced glass shots;
(7) Microcrystallization or tempering
In order to further improve the mechanical property of the glass pellets, the glass pellets are subjected to microcrystallization or tempering treatment to obtain microcrystallized reinforced or tempered reinforced glass pellets.
In step (5), the abrasive is a usual inorganic abrasive such as corundum, black corundum, brown corundum, etc. In the step (7), the specific step of microcrystallization is to nucleate the glass pellets for 1-2 hours at 650-900 ℃, crystallize for 1-2 hours at 750-1000 ℃ to separate out microcrystal phases, and then slowly cool to room temperature to obtain microcrystallized reinforced glass pellets.
In the step (7), the tempering treatment comprises chemical tempering and physical tempering, wherein the chemical tempering is to soak the glass pellets in potassium nitrate molten salt for 5-20 hours, then slowly cooling to room temperature, and washing with water to remove the potassium nitrate remained on the surface, thereby obtaining the chemically tempered reinforced glass pellets.
The physical toughening is to keep the temperature of the glass pellets close to the softening point for 6-9 minutes at 620-750 ℃, immediately spray compressed cold air for 2-7 minutes at multiple angles, and rapidly cool the glass pellets to obtain the physical toughening reinforced glass pellets.
The glass pellets are applied to emergency rescue, polyhedral glass pellets with edges and corners are designed and molded through a die, and the sharpness of the edges and corners is further improved through fine grinding of polyhedral blank grains.
Spraying glass shots on an emergency rescue site through high-pressure water or high-pressure air with the working pressure not less than 3-9 kg/square centimeter or a catapult to obtain impact penetration force which is larger than that of the catapult, more continuous and more durable than that of the catapult, and forming scratches, scratches and microcracks on glass windows and glass curtain walls; the microcracks are further expanded by continuous and repeated lasting impact penetration force until the glass windows and glass curtain walls are broken.
The high-speed ejected reinforced glass shots form a more concentrated hit area by a straight barrel nozzle or a venturi nozzle.
Advantageous effects
Compared with the prior art, the production method of the reinforced glass pellet provided by the invention can be used for rapidly breaking through glass, toughened glass, semi-toughened glass and even laminated glass; the injury to site personnel caused by scattering of metal shots can be avoided; aiming at the problem that glass, especially toughened glass, semi-toughened glass, laminated glass, is difficult to break and fold rapidly under the emergency rescue condition of a window and a curtain wall, reinforced glass shots are ejected at high speed by using high-pressure air or high-pressure water or ejector as power to impact and puncture the glass window, the glass curtain wall and the like so as to break and fold rapidly, thereby being convenient and rapid to develop and rescue.
Drawings
FIG. 1 is a diagram of the shape of a reinforced glass pellet;
FIG. 2 is a schematic illustration of a row of blanks;
FIG. 3 is a glass shot breakdown 5mm thick glass of example 1;
FIG. 4 is a glass shot breakdown 6mm thick thermally strengthened glass of example 2;
FIG. 5 is a glass shot of example 3 broken down 6mm thick tempered glass;
fig. 6 is a glass shot breakdown (6t+1pvb+6t) mm laminated glass of example 4.
Fig. 7 is a glass shot breakdown 8mm thick thermally strengthened glass of example 7.
Detailed Description
The invention will be further illustrated with reference to examples.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without creative efforts, based on the described embodiments of the present invention belong to the protection scope of the present invention.
Example 1
The main chemical composition of the glass pellet is as follows:
sio2=61%; na2O = 13.4%; k2o=3.32%; a2o3=17%; cao=0.4%; mgo=3.4%. The density is 2.455g/cm3, the Mohs hardness is 5.8, the tensile strength is 6.9MPa, the compressive strength is 104.5MPa, and the elastic modulus is 11.02.
The glass pellets having a size of about 5mm were ejected by a straight barrel nozzle using compressed air with an operating pressure of 5.3 kg/cm as ejection power to break down glass having a thickness of 5mm (see, for example, fig. 3).
Example 2
The main chemical composition of the glass pellet is as follows:
sio2= 72.241%; na2O = 14.316%; a2o3=0.692; cao= 8.658%; mgo= 3.923%. Its density is 2.482g/cm3, mohs hardness is 6.31, tensile strength is 8.61MPa, compressive strength is 103.3MPa, and elastic modulus is 7.20.
High pressure water with an operating pressure of 8.8 kg/cm was used as the spraying power, and a straight barrel nozzle was used to spray glass pellets with a size of about 10mm, breaking through 6mm thick thermally strengthened glass (see, e.g., fig. 4).
Example 3
The main chemical composition of the glass pellet is as follows:
sio2=81%; b2o3= 11.344%, na2o= 4.494%; a2o3= 2.869%; k2o=0.040; mgo=0.044%. Density 2.30g/cm3, mohs hardness 8.54, tensile strength 8.28MPa, compressive strength 115.34MPa, elastic modulus 6.878.
The glass pellets having a size of about 15mm were ejected by a venturi-shaped nozzle using high-pressure water having an operating pressure of 5 kg/cm as ejection power to break down the tempered glass having a thickness of 6mm (see, for example, fig. 5).
Example 4
A glass pellet has the main chemical composition of
Sio2= 56.321%; na2O = 4.567%; k2o= 3.435%; a2o3=11.068%; cao= 9.404%; ti2=0.063; mno=0.046%; zno=0.007%; mgo= 8.632%; bao=0.814%; fe2o3=1.011%; zro2=0.333%; p2o5= 2.393; density 2.463g/cm3, mohs hardness 4.38, tensile strength 8.01MPa, compressive strength 98.49MPa, elastic modulus 7.29; the density is 2.488g/cm3 after microcrystallization treatment, and the tensile strength is 80MPa; the compressive strength is 300MPa, and the impact toughness is 1.8-2.2KJ/m < 2 >.
Glass pellets with a size of about 15mm were ejected with a straight cylindrical nozzle using high pressure water with an operating pressure of 5 kg/cm as ejection power to break down (6t+1PVB+6t) mm laminated glass (see, e.g., FIG. 6).
Example 5
A glass pellet has the main chemical composition of
Sio2= 7.211%; na2O = 0.326%; a2o3= 3.514%; cao= 0.25.0%; ti2= 35.445%; znO = 0.070; bao=48.07%; zro2=0.116%; other = 5.0%. Density 4.65g/cm3, mohs hardness 5.38,6.9, tensile strength 8.00MPa, compressive strength 90.49MPa, elastic modulus 10.51.
High-pressure water with working pressure of 5 kg/square centimeter is used as spraying power, and a straight cylindrical nozzle is used for spraying glass shots with the size of about 15mm to hit (6t+1PVB+6t) mm laminated glass. The high-pressure water with the working pressure of 4 kg/square centimeter is used as the spraying power, and the glass shot with the size of about 15mm is sprayed out by a straight cylindrical nozzle to hit (8t+1PVB+8t) mm laminated glass.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A production method of reinforced glass pellets is characterized in that: the method comprises the following steps:
(1) And (3) batching:
the glass shot is microcrystalline glass shot, and the main chemical composition is as follows: siO (SiO) 2 ＝72.241％；Na 2 O＝14.316％；Al 2 O 3 =0.692; cao= 8.658%; mgo= 3.923%; a density of 2.482g/cm3, a Mohs hardness of 6.31, a tensile strength of 8.61MPa, a compressive strength of 103.3MPa and an elastic modulus of 7.20; weighing a plurality of raw materials according to the raw material formula converted by oxide composition, and uniformly mixing;
(2) Melting:
putting the prepared raw materials into a glass melting furnace, and melting the raw materials into uniform glass liquid without visible bubbles, infusions, separation phases or devitrification at 1350-1600 ℃;
(3) Shaping:
leading out molten glass from a feed channel to form a continuous flow which flows into a die, wherein the die is provided with a single row or a plurality of rows of polyhedral or hemispherical concave pits, and the depth of the pits is 3-30mm; the glass liquid flow is pressed and clung to the concave pit wall of the mould, and a single-sided convex or double-sided convex continuous blank is formed by pressing;
the glass liquid is changed into a plastic state from a viscous liquid state, then is changed into a blank sheet with a fixed shape, and is sent into a material collecting box through a mesh belt conveyor to be accumulated and cooled slowly;
(4) Blank sheet edge removal:
the cooled blank sheet is sent to an edge grinding machine for grinding, the blank sheet is crushed into single blank particles and edge residues under the action of mechanical force by utilizing the characteristic that the strength of the blank particles is larger than the gap between the blank particles, and the blank particles and the edge residues are separated by a sieving machine;
(5) Trimming:
feeding the blank particles or a certain amount of grinding agent into a rotating metal cylinder for repeated rotating and rolling, removing residual slag on the blank particles, and trimming the edges of the blank particles;
(6) And (3) fine grinding:
grinding the surface of the trimmed blank by using a grinder to sharpen edges and angles of the blank so as to obtain reinforced glass shots;
(7) Microcrystallization or tempering
In order to further improve the mechanical property of the glass pellets, carrying out microcrystallization or tempering treatment on the glass pellets to obtain microcrystallized reinforced or tempered reinforced glass pellets;
when the glass shot is used, the glass shot is applied to emergency rescue, the polyhedral glass shot with the edges and corners is designed and molded through a die, and the sharpness of the edges and corners is further improved through fine grinding of polyhedral blank grains; spraying glass shots on an emergency rescue site through high-pressure water or high-pressure air with the working pressure not less than 3-9 kg/square centimeter or a catapult to obtain impact penetration force which is larger than that of the catapult, more continuous and more durable than that of the catapult, and forming scratches, scratches and microcracks on glass windows and glass curtain walls; the microcracks are further expanded under continuous and repeated lasting impact penetration force until the glass window and the glass curtain wall are broken; the high-speed ejected reinforced glass shots form a more concentrated hit area by a straight barrel nozzle or a venturi nozzle.
2. The method of producing reinforced glass pellets according to claim 1, wherein: in the step (5), the grinding agent is an inorganic grinding agent, and comprises corundum, black corundum and brown corundum.
3. The method of producing reinforced glass pellets according to claim 1, wherein: in the step (7), the specific step of microcrystallization is to nucleate the glass pellets for 1-2 hours at 650-900 ℃, crystallize for 1-2 hours at 750-1000 ℃ to separate out microcrystal phases, and then slowly cool to room temperature to obtain microcrystallized reinforced glass pellets.
4. The method of producing reinforced glass pellets according to claim 1, wherein: in the step (7), the tempering treatment comprises chemical tempering and physical tempering, wherein the chemical tempering is to soak the glass pellets in potassium nitrate molten salt for 5-20 hours, then slowly cooling to room temperature, and washing with water to remove the potassium nitrate remained on the surface, thereby obtaining the chemically tempered reinforced glass pellets.
5. The method for producing a reinforced glass pellet as defined in claim 4, wherein: the physical toughening is to keep the temperature of the glass pellets close to the softening point for 6-9 minutes at 620-750 ℃, immediately spray compressed cold air for 2-7 minutes at multiple angles, and rapidly cool the glass pellets to obtain the physical toughening reinforced glass pellets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111222303.4A CN113916067B (en) | 2021-10-20 | 2021-10-20 | Reinforced glass projectile and production method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111222303.4A CN113916067B (en) | 2021-10-20 | 2021-10-20 | Reinforced glass projectile and production method and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113916067A CN113916067A (en) | 2022-01-11 |
| CN113916067B true CN113916067B (en) | 2023-12-12 |
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| CN1394821A (en) * | 2001-06-26 | 2003-02-05 | 舱壁玻璃公司 | Method for producing glass ball |
| CN101566450A (en) * | 2009-04-24 | 2009-10-28 | 陈俊珂 | Manufacturing method of novel toy bullet and product thereof |
| CN102589365A (en) * | 2012-03-06 | 2012-07-18 | 中北大学 | High-safety nonmetal training cartridge and manufacturing method thereof |
| CN110360902A (en) * | 2019-08-01 | 2019-10-22 | 北京理工大学 | A kind of preparation method for the micro- bullet of active metal being mounted with high explosive |
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| WO2017136953A1 (en) * | 2016-02-10 | 2017-08-17 | Genics Inc. | Dissolvable projectiles |
| AR107151A1 (en) * | 2016-12-20 | 2018-03-28 | Leguizamon Armando Francisco | ANTIREBOTE ORGANIC BULLET AND PROCESS TO MANUFACTURE IT |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394821A (en) * | 2001-06-26 | 2003-02-05 | 舱壁玻璃公司 | Method for producing glass ball |
| CN101566450A (en) * | 2009-04-24 | 2009-10-28 | 陈俊珂 | Manufacturing method of novel toy bullet and product thereof |
| CN102589365A (en) * | 2012-03-06 | 2012-07-18 | 中北大学 | High-safety nonmetal training cartridge and manufacturing method thereof |
| CN110360902A (en) * | 2019-08-01 | 2019-10-22 | 北京理工大学 | A kind of preparation method for the micro- bullet of active metal being mounted with high explosive |
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