157 results about "Glass strength" patented technology

The invention discloses a tempered glass strength detecting device. The tempered glass strength detecting device comprises a machine frame and a detection component, a spring, an air cylinder, a deformation component, and liquid drainage pipes; the detecting component is arranged on the machine frame and comprises an upper fixing plate; each of the two ends of the lower part of the upper fixing plate is slidingly connected with a subordinate guide rod, the middle part of the upper fixing plate is fixedly connected with a principal guide rod, and the lower part of the principal guide rod is provided with a pressure rod; the principal guide rod and the pressure rod are sleeved with the spring; the air cylinder comprises a piston and a piston rod; the lower end of the piston rod is connected with the principal guide rod; a hydraulic cylinder is arranged between the principal guide rod and each subordinate guide rod; each hydraulic cylinder comprises an upper cylinder, a lower cylinder, a push plate, and a first connecting rod; one end of each first connecting rod is connected with the corresponding push plate; a second connecting rod is connected with the upper part of each push plate; the second connecting rods are fixedly connected with the upper fixing plate; a hydraulic air bag is arranged below a test block; and the hydraulic air bag is connected with the two lower cylinders via the two liquid drainage piles respectively.

The invention discloses a sight glass for shielding radio frequency electromagnetic wave, which consists of a first white glass layer, a first transparent and conductive ITO metallic oxide film layer, a first metal film layer with silver and titanium alloy, a PU doubling layer, a second metal film layer with silver and titanium alloy, a second transparent and conductive ITO metallic oxide film layer and a second white glass layer in sequence. By combining with the glass doubling technology, the sight glass of the invention is prepared by adopting electron beam evaporation to deposit an ITO/Ag-Ti alloy bilayer film in situ. The sight glass for shielding radio frequency electromagnetic wave of the invention has high intensity, low cost and the shielding efficiency of more than 30dB on the radio frequency electromagnetic wave of 30MHz-5GHz. Meanwhile, the sight glass of the invention has good permeability against visible light while the permeability rate is more than 70 percent, solving the technical problem that the transmittance of light and the electromagnetic shielding of the existing ITO coated glass and wire mesh interlayer shielding glass products can not be realized at the same time.

The invention relates to an etching method for OGS (One Glass Solution) glass subjected to secondary chemical enhancement, and the etching method comprises the following steps of: etching an OGS glass sheet in an etching bath for 6-15 minute, wherein an acid-resisting film is respectively adhered to the forward surface and back surface of the OGS glass sheet, the etching bath is filled with etching acid liquor, and the temperature of the etching bath is 30-35 DEG C, the etching acid liquor is prepared by mixing a hydrofluoric acid solution, auxiliary acid liquor and water at a volume ratio of (4-5):(1.5-2.5):(3-4), the auxiliary acid liquor is a mixture of one or more of a salpeter solution, a sulfuric acid solution or a hydrochloric acid solution, the mass concentration of the hydrofluoric acid solution is 40%, the mass concentration of the salpeter solution is 68%, the mass concentration of the sulfuric acid solution is 86%, and the mass concentration of the hydrochloric acid solution is 31%; bubbling the etching acid liquor in an etching process, wherein the bubbling amount is 50-150 l/min. According to the invention, the occurrence of irregular edge and sawteeth phenomena caused by the poor etching of OGS glass can be avoided, the glass strength is improved, and the problem of bad appearance caused by edge BM falling off and corrosion of an ITO circuit is avoided; micro cracks at the edges of glass can be effectively eliminated, so that the mechanical compressive resistance amplitude can be enhanced, and the strength and yield of the OGS glass can be significantly enhanced.

The invention discloses an environmentally-friendly hot-melt pressure sensitive adhesive. The environmentally-friendly hot-melt pressure sensitive adhesive is prepared from, by weight, 25-35 parts ofa thermoplastic elastomer, 28-36 parts of modified petroleum resin, 6-10 parts of natural tackifying resin, 12-20 parts of a plasticizer, 2-3 parts of a modifying filler, 0.2-0.3 part of a coupling agent and 0.2-0.3 part of an antioxidant. The present invention also discloses preparation method of the hot-melt pressure sensitive adhesive. The thermoplastic elastomer is used as a matrix for the hot-melt pressure sensitive adhesive, the modified petroleum resin and the natural tackifying resin are used as tackifying resins, and no organic solvent is needed, so the raw materials are safe and environmentally friendly; the petroleum resin is modified, so the compatibility of the petroleum resin and the thermoplastic elastomer is improved, and the thermal stability of the hot-melt pressure sensitive adhesive is improved; and the reinforcing effect of the modifying filler improves the initial viscosity, the glass strength and the thermal stability of the hot-melt pressure sensitive adhesive are improved, so the environmentally-friendly hot-melt pressure sensitive adhesive with excellent performances is prepared.

A disclosed manufacturing technology for a glass panel of electronic products comprises the following steps: 1) performing patterning transferring, specifically printing an anticorrosive membrane resisting corrosion of hydrofluoric acid on an A surface and pre-drying, printing an anticorrosive membrane on B surface and completely drying; 2) performing chemical etching forming; 3) engraving glass edges and hole interiors; 4) performing secondary strengthening; 5) employing a sodium hydroxide solution to remove the anticorrosion membranes; 6) detecting appearance; and 7) packaging and delivering. The manufacturing technology for the glass panel of the electronic products can help to perform various model manufacturing on glass on the basis without destroy the glass strength and guarantee the precision, and also the production efficiency is effectively improved. The beneficial effects comprise that the technology substantially reduces the production process, substantially improves the production efficiency and the yield, substantially reduces the production cost and improves the processing precision, improves the chemical-strengthening strength and the bending strength of the glass, effectively prevents ITO lines and silkscreen patterns from being damaged.

The invention provides a glass toughening method and toughened glass. The glass toughening method comprises the following steps: placing glass in a strong treating agent for pretreatment; placing theglass treated in step 1 in molten salt at preset temperature and enabling the glass to make contact with the molten salt for preset duration to obtain the toughened glass; placing the toughened glasstreated in step 2 in a fine treating agent for fine treatment to remove microcracks, caused by tempering amplification and/or ion extrusion, of the toughened glass. The invention further provides thetoughened glass prepared with the glass toughening method. According to the glass toughening method and the toughened glass, the microcracks are removed by the strong treating agent and the fine treating agent respectively before and after tempering, so that the microcracks in all areas of the glass can be removed uniformly, shape and dimension of the glass are not limited, the method is simple, easy to operate and high in efficiency, influence on a temper stress layer is small, and glass strength is improved greatly.

The invention relates to intelligent heat-color light-dimming energy-saving glass. The intelligent heat-color light-dimming energy-saving glass is characterized by comprising a first glass layer, a frame and a glass complex which are adhered in sequence, wherein the first glass layer is boned with the glass complex through the frame to form a hollow glass structure. The glass complex is selected from single-layer glass or interlayer glass structures. The glass complex comprises an intelligent heat-color film layer having a phase-change function. The intelligent heat-color light-dimming energy-saving glass achieves heat adjustment with environment temperature change and can be widely applied to the field of building energy-saving door windows and vehicle and ship windows. By the adoption of the structure, impact resistance and other safety properties of the glass can be improved, the service life of a vanadium oxide composite film layer can be prolonged, and the demands for different environmental glass strength can be met by selecting multiple substrate materials.

Disclosed is a sensitive glass film for a pH electrode, which is not deteriorated in its glass strength or pH-measuring function, which is hardly stained, and from which any stain can be removed easily. Also disclosed is a pH electrode having the sensitive glass film. A microparticle comprising rutile-type or brookite-type titanium dioxide or a microparticle comprising amorphous titanium dioxide is adhered directly on the glass film surface of a sensitive glass film for a pH electrode.

Heat-curable epoxy resin compositions and the use thereof, for example, in motor vehicle construction and sandwich panel construction, are disclosed. Exemplary heat-curable epoxy resin compositions include, in addition to epoxy resin components A1, optionally A2, a hardener component B, a carboxylic acid C and a hydroxyalkylamide or hydroxyalkylurea H, an accelerator E for activation of the conversion of components A1, A2 and B. The compositions and the structural foams produced therefrom are notable for high mechanical strength, high glass strength and good adhesion capacity on metallic and nonmetallic substrates, and it is possible at the same time to dispense with the use of toxic or inflammable blowing agents.

The invention discloses lithium disilicate microcrystalline glass and a preparation method thereof, belonging to the technical field of microcrystalline glass preparation processes. According to the preparation method, transparent hard glass with a lithium disilicate component is used as a glass matrix, and a microstructure in which multiple scales of lithium disilicate grains with different sizescoexist is obtained through three-step heat treatment. In the first step of heat treatment, common lithium disilicate crystals with fine and uniform crystal grains are obtained; in the second step ofheat treatment, coarse crystal grains playing a toughening role are obtained through crystal remelting and secondary recrystallization; and in the third step of heat treatment, small lithium disilicate crystals are separated out again, a length-diameter ratio is larger, and glass strength is improved. With the three-step heat treatment, fine and uniform lithium disilicate crystals are differentiated into two crystals with obvious size and form difference, so homogeneous toughening effect is achieved, the fracture toughness of the lithium disilicate microcrystalline glass is effectively improved, a heterogeneous phase is not introduced, the transparency and appearance of a material are not influenced, and the use stability and reliability of the material are guaranteed.

The invention belongs to the technical field of laser microprocessing, and particularly provides a laser processing method for sand covering of the surface of a glass material. A drawing document of aspecific pre-processing disordered dot matrix bitmap is drawn and guided into a laser controller, the laser controller controls laser beams to carry out scanning and ablation along the drawing document according to the path of the disordered dot matrix bitmap, random dot irradiation of the beams onto the disordered dot matrix bitmap is achieved by adjusting the focusing positions of the light beams and processing parameters of a laser device, and therefore the sand covering effect is achieved on the surface of a to-be-processed workpiece. Specific laser device parameters are combined with a software bitmap disordered dotting mode, laser grain generated on the surface of the glass workpiece after processing can be effectively controlled, and meanwhile roughness and transmittance of the sample surface are guaranteed by laser spots under a certain overlapping rate; and in addition, the laser processing manner is adopted, the influence on glass strength is small, and the environment cannot be polluted.

The invention discloses safety energy-saving hollow glass, which comprises an internal layer of glass and an external layer of glass between which a cavity is kept; a coating film with the function of heat insulation and preservation is arranged outside the external layer glass; coating films with the functions of enhancing glass strength are arranged inside the external layer of glass and outside the internal layer of glass, insulating sound wave and filtering ultraviolet rays; and a coating film with the functions of absorbing, purifying and decomposing indoor radioactive and poisonous gases is arranged inside the internal layer of glass. The structure of the invention has the functions of obviously improving heat insulation and preservation property, increasing anti-seismic and anti-impact intensity, purifying indoor air, and absorbing, purifying, and decomposing radioactive gas radon, volatilizing gases of methyl aldehyde, benzene and methylbenzene, and bacterial viruses in building decoration materials.

The invention discloses a composite packaging adhesive film for a solar packaging material. The composite packaging adhesive film is composed of an ethylene vinyl acetate (EVA) adhesive film layer anda polyolefin elastomer (POE) adhesive film layer, and the EVA adhesive film layer is prepared from the following raw materials in parts by weight: 100 parts of EVA resin, 0.5-1.6 parts of a compositecross-linking agent, 0.5-1 part of a co-crosslinking agent, 0.05-0.2 part of an ultraviolet absorbent, 0.03-0.1 part of an antioxidant and 0.1-0.5 part of a tackifier, wherein the composite cross-linking agent comprises a peroxide and an crosslinking control agent. The invention further discloses a preparation method of the composite packaging adhesive film for the solar packaging material, and the preparation method comprises the following steps: melt extrusion of POE resin, melt extrusion of EVA resin and co-extrusion. According to the composite packaging adhesive film disclosed by the invention, the problems of bubbles and too low gel content of a cured film are solved, and meanwhile, the composite packaging adhesive film has the characteristics of good light transmittance and high glass strength. The preparation method can meet the requirements of process stability, laminating process stability and cross-linking curing efficiency during film preparation by casting at a same time.

The invention relates to a molten salt impurity removal method suitable for chemical tempering production and a method for improving glass strength. The molten salt impurity removal method suitable for chemical tempering production comprises the following steps: adjusting the pH value of molten salt to 9-14; adding a precipitant into the molten salt, performing mixing treatment to enable the precipitant to react with impurity ions in the molten salt to generate precipitate, and adjusting the pH value of the molten salt to 6.8-7.2; and adding an adsorbent, and standing to clarify the molten salt. The molten salt impurity removal method for chemical tempering production is simple to operate, and experiments prove that the effect of removing impurities from molten salt by adopting the methodis obviously better than that of a traditional molten salt impurity removal method.

The invention relates to a method for reducing machining stress concentration of a glass hole. The method comprises the following steps: assembling a chamfer bit, enabling the end with external diameter smaller than the aperture of the glass hole to get close to a drill bit working ring; arranging a chamfer ring at the rear side of the drill bit working ring and assembling the chamfer ring on a drill bit basal body; carrying out drilling-down machining, wherein the drill bit drills through a transitional slot at the lower end face of the glass, and the drill slot depth at the external diameter of the drill bit working ring is smaller than the set chamfer depth of the lower end face of the glass; carrying out drilling-up machining, wherein the drill bit carries out hole drilling and outer chamfer drilling at the upper end face of the glass, corresponding to the transitional slot, and drills at the external diameter part of the end face of the drill bit working ring until reaching the bottom of the transitional slot or running through the bottom of the transitional slot; carrying out secondary drilling-down machining, wherein the drill bit carries out inner chamfer drilling at the transitional slot of the glass, and thus completing machining of the glass hole. The method can realize little edge breakage of the end face and the inner chamfer, can avoid forming of junction gaps, can form a uniform and smooth hole wall, and can ensure that the inner chamfer is an obtuse angle, thus solving or relieving the problem of stress concentration in machining of the glass hole, and ensuring the strength of the glass.

The invention discloses a method for testing strength of ultra-thin glass. The method comprises the following steps: obtaining elasticity modulus of an object; fixing the object with to-be-tested ultra-thin glass together, and forming a combined object sample; measuring the corresponding force value of the combined object sample at glass breakage moment through an existing glass strength testing method, substituting the force value into a given calculation formula, thereby obtaining the bending strength of the ultra-thin glass, wherein the object refers to a standard beam or a block. The experimental method disclosed by the invention is simple, easy in sample preparation, accurate in test data and high in operability. With the adoption of a test sample prepared by the method, the strength test can be directly finished according to the existing glass strength testing method and instrument.

The present invention relates to a protector high-speed particle impact tester detection device. It includes transmitting tube and high-speed particles transmitted from transmitting tube. It is characterized by that the inlet end and outlet end of said transmitting tube are respectively equipped an optical fibre sensor, the output ends of two optical fibre sensors are respectively connected with a signal processing circuit and a microcontroller input end by means of two photoelectric couplers, their output ends are connected with input end of a liquid crystal display by means of a liquid crystal drive module, and the display screen of the liquid crystal display can be used for displaying elapsed time and speed of high-speed particles between two optical fibre sensors.