4843 results about "Toughened glass" patented technology

A glass composition capable of being chemically strengthened by ion-exchange within 100 hours to provide a glass with a surface compressive stress of greater then 400 MPa and an ion-exchange depth greater then 200 microns comprising: SiO2 58% to 70% (by weight), Al2O3 5% to 15%, Na2O 12% to 18%, K2O 0.1% to 5%, MgO 4% to 10%, CaO 0% to 1% with the provisos that the total of the Al2O3 and MgO is in excess of 13%, the total of the amounts of Al2O3 plus MgO divided by the amount of K2O is at least 3 and that the sum of the amounts of Na2O, K2O and MgO is at least 22%.

A preparatory tempered glass structure for a cutting treatment includes a glass substrate and at least one trench. The glass substrate is given a strengthening treatment to form, from a surface to the inside of the glass substrate, at least one compression stress layer and a tensile stress layer corresponding to the compression stress layer. The trench is formed in the compression stress layer of the glass substrate and overlaps a predetermined cutting path for the cutting treatment.

The invention discloses a method for producing tempered glass with a plurality of surface stress layers and a tempered glass product and particularly relates to a method for producing tempered lithium glass with a plurality of surface stress layers. The method comprises that a mixed salt bath is used for conducting ion exchange in a step, or various mixed salt baths are used for conducting several ion exchange in a plurality of steps. By the aid of the novel chemical tempered lithium aluminosilicate glass and the treatment method of relative glass products, glass with the plurality of surface stress layers and products of the glass are obtained, and the product serves as a high-strength cover plate in electronic devices, household appliances and vehicles. Compared with the prior art, the tempered glass with the plurality of surface stress layers can protect electronic devices, household appliances and vehicles reliably.

A method of making a coated article including a transparent conductive oxide (TCO) film supported by a tempered glass substrate is provided. Initially, an amorphous metal oxide film is sputter-deposited onto a non-tempered glass substrate, either directly or indirectly. The glass substrate with the amorphous film thereon is then thermally tempered using high temperatures. The thermal tempering causes the amorphous film to be transformed into a crystalline transparent conductive oxide (TCO) film. The heat used in the thermal tempering of the glass substrate causes the amorphous film to turn into a crystalline film, causes the visible transmission of the film to increase, and/or causes the film to become electrically conductive.

The objective of the invention is to obtain a glass substrate satisfying ion exchange performance and devitrification resistance of a glass simultaneously and having higher mechanical strength compared to a conventional glass substrate. The tempered glass substrate which has a compression stress layer on a surface thereof, comprises a glass composition including, in terms of mole%, 50-85% of SiO2 , 5- 30% of Al2O3, 0-20% of Li2O, 0-20% of Na2O, 0-20% of K2O, 0.001-10% of TiO2, and 15-35% of Li2O+Na2O+K2O+Al2O3. The tempered glass substrate has a (Li2O+Na2O+K2O)/Al2O3 value of 0.7-3 in terms of mole fraction, and is substantially free of As2O3 and F.3 in terms of mole fraction, and is substantially free of As2O3 and F.

A method for cutting a strengthened glass sheet through laser irradiation. The sheet includes a front surface layer and back surface layer each having a residual compressive stress and an intermediate layer which is formed therebetween and has an internal residual tensile stress CT (MPa). A strain energy U_CT (J/m²) expressed by U_CT={CT²×(t₁−2×DOL)}/(2×Y) is 2.5 J/m² or more. A cutting index K (N/mm) expressed by K=Pe/v×exp(−α×t₂)×(Y×α_L)/(t₂×ρ×c) is 150 N/mm or less.

A system and method is provided for tempering a glass container. The method includes the steps of pre-heating the glass container to a first predetermined temperature. The method also includes the steps of applying radio-frequency energy to the pre-heated glass container to heat the glass container to a second predetermined temperature and, after a predetermined amount of time, simultaneously cooling at least one surface of the heated glass container to a third predetermined temperature to treat the glass container. The method further includes the steps of, after a predetermined amount of time, quenching the treated glass container to a fourth predetermined temperature to produce a tempered glass container.

To provide a method for producing chemically tempered glass, whereby the chemical tempering can be done at a low temperature and in a short time. A method for producing chemically tempered glass, which comprises chemically tempering glass for chemical tempering, comprising, as represented by mole percentage based on the following oxides, from 60 to 75% of SiO₂, from 5 to 15% of Al₂O₃, from 1 to 12% of MgO, from 0 to 3% of CaO, from 0 to 3% of ZrO₂, from 10 to 20% of Li₂O, from 0 to 8% of Na₂O and from 0 to 5% of K₂O, and having a total content R₂O of Li₂O, Na₂O and K₂O of at most 25%, and a ratio Li₂O/R₂O of the Li₂O content to R₂O of from 0.5 to 1.0.

The invention provides vacuum glass and a manufacture method thereof, characterized in that micro-salient-point supporting objects melted together with an original glass sheet are used to substitute for a traditional stainless steel supporting object distributing process, a low-temperature metal braze-welding technology without causing the anneal of the original toughened glass sheet is used for sealing edges, and a traditional vacuum-layer vacuumizing process and an edge-sealing process are simplified and integrated into an integrated vacuumizing and edge-sealing process. Compared with traditional vacuum glass and the manufacture method thereof, the vacuum glass and the manufacture method thereof, which are provided by the invention, have simple process, high yield, low equipment investment and production cost, better heat and sound insulation, better appearance and light transmittance, high safety reaching the use standard of high-rise buildings, and the like.

A method for cutting a strengthened glass sheet according to a first embodiment of the present invention includes: a step of collecting and scanning laser light in an intermediate layer, thereby forming a first reformed region along a first cutting-scheduled line; and a step of applying an external force to propagate a crack from the first reformed region as a start point in a thickness direction of the strengthened glass sheet, thereby dividing the strengthened glass sheet. In the step of forming the first reformed region, a width d1 (mm) of the first reformed region in the thickness direction is set to d1<2×10³×K_c²/{π×(CT)²} based on a fracture toughness K_c (MPa·√m) of the strengthened glass sheet and the tensile stress CT (MPa) remaining in the intermediate layer.

A cutting method and cutting stage of toughened glass with which a piece of toughened glass is divided into unit pieces of toughened glass. The cutting method cuts a piece of toughened glass which is strengthened by forming a compressive stress in the surface of a raw glass plate. The method includes the steps of reducing the central tension inside a cutting portion of the piece of toughened glass that is to be cut by concavely bending the cutting portion; and cutting the piece of toughened glass by forming a median crack in the cutting portion.

A method of cutting a piece of tempered glass in which the piece of tempered glass is cut after a thin film having a tensile stress is formed a method of fabricating a touchscreen using the same. The method includes a step of forming a thin film layer having a tensile stress on the piece of tempered glass and a step of cutting the piece of tempered glass.

A touch panel using tempered glass includes a first conductive unit and a second conductive unit. The first conductive unit includes a conductive film, a first indium-tin oxide (ITO) coating layer coated on a lower surface of the conductive film, and a first electrode printed on an edge of a lower surface of the first ITO coating layer. The second conductive unit includes a tempered glass substrate formed of tempered glass by an etching process, a second ITO coating layer coated on an upper surface of the tempered glass substrate, and a second electrode printed on an edge of an upper surface of the second ITO coating layer. The touch panel using tempered glass not only exhibits substantially improved strength and rigidity, but also has a variety of designs.

There are provided a vacuum glass panel manufacturing method which makes it possible to join a pair of glass plates opposed to each other via spacers while suppressing deformation of the pair of glass plates and suppressing degradation of the strength of the pair of glass plates, and a vacuum glass panel manufactured by the manufacturing method. In a joining process for joining thermally tempered glass plate assemblies 13 and 17, the thermally tempered glass plate assemblies 13 and 17 superposed one upon the other are placed on a panel support 58, and the thermally tempered glass plate assemblies 13 and 17 are heated in their entirety to a predetermined temperature, e.g. to 150° C. or higher, and preferably to 200 to 300° C. Then, the outer peripheral edges of the thermally tempered glass plate assemblies 13 and 17 are locally heated by an irradiation device 59 for irradiation of high-frequency wave to thereby selectively heat and remelt a linear protrusion 16. Further, during the local heating, compressed air is blown by nozzles 60 against the outer peripheral edges of thermally tempered glass plates 14 and 18 to cool the same.

The invention discloses a solar cell assembly for increasing the light energy utilization ratio. The solar cell assembly comprises ultra-white low-iron toughened glass (1), a first EVA (Ethylene-Vinyl Acetate) layer (21), interconnected solar cells (3), a second EVA layer (22) and a back plate (4) arranged in sequence from top to bottom and encapsulated integrally, and is characterized in that: texturing treatment is performed on the surface of a welding band (5) for connecting the solar cells (3); gaps among the solar cells (3) are provided with cell gap reflecting layers (6); and texturing treatment is performed on the surfaces of the cell gap reflecting layers (6). Compared with the prior art, the solar cell assembly has the advantages that: the light utilization ratio of the assembly can be increased greatly, light rays which cannot be utilized by the assembly originally are reflected onto the solar cells and absorbed by the solar cells, photo-generated current is indirectly increased, and the output power and conversion efficiency of the assembly are increased.

A glass dry-erase board. The glass dry-erase board has a smooth transparent glass writing surface. One embodiment utilizes tempered glass sheet, which provides the writing surface and has a non-specular and light blocking rear surface treatment and attached white plastic sheet on the back side of the glass sheet. The glass dry-erase board may include additional features such as wall mounts or one or more utensil trays.

The invention relates to a press plate for glass testing, and especially relates to a natural rubber press plate with four edges capable of being adjusted to one plane through skewed slots. The press plate is composed of a clamping part and a sliding part. The improvements of the press plate are as follows: the sliding part is arranged on one end of the clamping part and is overlapped on the upper surface of the clamping part; the lower surface of the sliding part is taken as the sliding lower plane, the sliding lower plane is provided with a trapezoidal emboss, the upper surface of the clamping part is the clamping upper plane, and the clamping upper plane is provided with a trapezoidal groove. The sliding lower plane and the clamping upper plane are in the same height. The inner side of the clamping part is provided with a clamping slope, and a rubber press sheet is adhered on the clamping slope. The angle between clamping slope (15) and the clamping upper plane (16) is 51 to 53 degrees. A layer of rubber press sheet (51) is adhered on the clamping slope (15), and the thickness of the rubber press sheet (51) is 2.1 to 2.3 millimeters. When the width is adjusted to limit a tempered glass sheet (100) in the horizontal direction, and a downward force can be generated at the same time, so the tempered glass sheet (100) can be pressed against the flat plate (50) of a test platform so as to avoid the explosion of the tempered glass sheet (100) due to the uneven stress on the tempered glass sheet (100).

The invention provides glass ceramics and a substrate thereof. The glass ceramics have high heat conductivity and bent resistance. The glass ceramics comprise the following components in percentages by weight: 60-80% of SiO2, 4-20% of Al2O3, 0-15% of Li2O, greater than 0 but less than or equal to 12% of Na2O, greater than 0 but less than or equal to 5% of ZrO2, 0-5% of P2O5, 0-6% of TiO2 and greater than 0 but less than 0.35 of ZrO2/Li2O. The heat conductivity of the glass ceramics at the room temperature is 2 w/m.k or above, the Vickers hardness of the toughened glass ceramics is 600 kgf/mm<2> or above, and the three-point bent strength is 450 Mpa or above. The glass ceramics or the substrate is suitable for protecting components of portable electronic equipment and optical equipment, andcan further be used for other decorations such as outer frame components of portable electronic equipment with the proper appearance of a glass material.

The invention discloses a method and a device for detecting the impurities and defects of a tempered glass curtain wall, which relate to the field of material detection. The method comprises the following steps: through a transmissive photo-elastic principle, forming a light intensity difference without energy consumption by utilizing natural light and a camera bellows analyzer so as to acquire astress fringe pattern of the glass of the curtain wall; performing image processing and analyzing on stress fringes to find out singularities or catastrophe points including stress concentration points in the stress fringes; and further performing amplification and analysis on the areas to determine the types, sizes and positions of the impurities or the defects. The device comprises a transmissive photo-elastic instrument system used for scanning and acquiring an image, an image transmission system and a stress analysis system, and is used for detecting the types, positions and sizes of the impurities and the defects of the glass curtain wall. The method and the device solve the problem of detecting the impurities and defects of the serving tempered glass curtain wall, and are significantfor ensuring the safety and reliability of the glass curtain wall; and an invented test device has a vast application prospect.

A glass faceplate is cemented to a plastic carrier which can be removably connected to the adapter plate of a wall box dimmer. The glass plate is a flat tempered glass which may be suitably colored or clear and has a thickness less than three millimeters. Two elastic tethers are connected at one end to the carrier plate and at the other end to the adapter plate to serve as a pivotal connection at the bottoms of the two plates and prevent the accidental fall and breakage of the glass faceplate.

The invention discloses a preparation method of a chemical toughened glass product with a wearing-resisting film. The preparation method comprises the following steps of: (1), plating an oxide film on the surface of the clean glass product so as to obtain the glass product with a wearing-resisting coating; and (2), putting the glass product (obtained in the first step) with the wearing-resisting coating into molten salt, carrying out ion exchange to be strengthened for 8-18 hours at 400-500 DEG C, and subsequently cooling to the room temperature and washing so as to obtain the chemical toughened glass product. According to the method, the particularly prepared molten salt is adopted for ion exchange and tempering, the wearing-resisting coating with high hardness is combined with the surface of the glass product more tightly, and a part of surface crack can also be healed, so that the surface hardness and the anti-bending strength of the product are improved, and the application field of the chemical toughened glass product is expanded.

The invention relates to a production process for flat tempered glass, and belongs to the technical field of building materials. The production process comprises the following steps: cutting, edging and cleaning glass; placing the cleaned glass on a roller bed, and conveying the glass into a convection tempering furnace for heating treatment by virtue of the roller bed, wherein heating temperature in a first interval is 450 to 500 DEG C, heating time in the first interval is 100 to 250 seconds, heating temperature in a second interval is 680 to 700 DEG C, and heating time in the second interval is 200 to 300 seconds; discharging the heated glass out of the furnace, feeding the glass into a flat air grid, quenching the glass for 80 to 120 seconds under the air pressure of 0.1 to 4.8KPa by virtue of upper and lower air grids in the flat air grid until the temperature of the surface of the glass is 240 to 260 DEG C, and then quenching the glass to normal temperature to obtain a flat tempered glass finished product. The production process for the flat tempered glass is simple, easy, time-saving and energy-saving, the safety of the tempered glass is remarkably improved, and the bending strength and impact strength of the tempered glass are also remarkably strengthened.