172results about "Blow machines" patented technology

This invention relates to processes and systems of rapid prototyping and production. Its features includes flexible material deposition along tangential directions of surfaces of a part to be made, thereby eliminating stair-shape surface due to uniform horizontal layer deposition, increasing width of material deposition to increase build up rate, applying the principles of traditional forming/joining processes, such as casting, fusion welding, plastic extrusion and injection molding in the fabrication process so that various industrial materials can be processed, applying comparatively low cost heating sources, such as induction heating and arc-heating. Additional features include varying width and size of material deposition in accordance with geometry to be formed and applying a differential molding means for improved shape formation and surface finishing.

A beam shaper is implemented to seal an OLED. The beam shaper comprises a first and second lens and a beam shaper. Changing the relative position of the first, second lens and beam shaper relative to each other enables the beam shaper to generate laser beams with different shapes and intensity profiles.

In order to solve problems involved in micromolding of a glass, according to the present invention, there can be provided a technology for enabling molding of a glass without applying a large load.

A molding apparatus of a glass material according to the present invention is characterized by containing means for holding a glass material and a molding die in contact with each other, means for heating the glass material and the molding die, and means for applying a voltage across the glass material and the molding die, in which press-molding is performed by electrostatic attraction acting between a surface of the glass material and a surface of the molding die. Further, a molded product of a glass material according to the present invention is characterized by including an alkali metal as a component, in which a concentration of the alkali metal is lowered in vicinity of a surface to be molded as compared with that of a glass base material.

An apparatus and methods for making a glass ribbon includes a forming wedge with a pair of inclined forming surface portions converging along a downstream direction to form a root. The apparatus further includes an edge director intersecting with at least one of the pair of downwardly inclined forming surface portions, and a replaceable heating cartridge configured to direct heat to the edge director and thermally shield the edge director from heat loss. A replaceable heating cartridge is also provided for directing heat to the edge director and thermally shielding the edge director from heat loss.

In a method for molding glass products having a fine structure as of an optical fiber holder with a high size precision, a mold used for the molding has the fine structure in a size such that a size difference occurring when the glass product is cooled down to a room temperature where at the end of molding with a pressure a size of the fine structure of the mold for glass product and a size of a fine structure of the glass product formed by transfer of the fine structure of the mold are the same as one another is so adjusted that a size of the fine structure of the completed glass product falls within a permissive size precision range. The mold may has a size satisfying, as a size of a fine structure at a room temperature, a formula [1+( alpha g- alpha m)x DELTA T+ alpha g'x DELTA T']xSg, wherein Sg denotes a size of a fine structure of thc glass product at the room temperature; alpha g denotes a mean thermal expansion coefficient of the glass to be molded in a temperature range from the room temperature to the glass transition temperature of the glass to be molded; alpha m denotes a mean thermal expansion coefficient of the mold in a temperature range from the room temperature to the glass transition temperature of thc glass to be molded; DELTA T denotes a difference between the room temperature and the glass transition temperature of the glass to be molded; DELTA T' denotes a difference between a temperature at which the mold's pressure exerted to the glass product is released and the glass transition temperature, in a case where the mold's pressure exerted to the glass product is released at a temperature higher than the glass transition temperature after pressing the mold with a high pressure; and alpha g' is a thermal expansion coefficient of the glass to be molded at a mean temperature of summation of the glass sag temperature and the glass transition temperature.

The invention relates to glass tubes for technical applications, especially for electrical or magnetic components, such as reed switches for example.

According to a first embodiment, the glass tube has an inner bore (23) and at least one cross-sectional constriction (X) whereby the relationship applicable between the respective cross-sectional constriction (X) and the diameter (d) of the circumference of inner bore (23) is: x greater than or equal to 0.02*d, more preferably x greater than or equal to 0.1*d. According to a further embodiment, the glass tube has at least one inner bore with at least one inner edge, wherein the radius of curvature of the respective inner edge is less than or equal to 0.1 mm and preferably less than or equal to 0.03 mm. The glass tube is used as a preform for a subsequent redrawing process. The preform is formed by casting a molten glass into a shaft in the interior of which is located a shaping means for defining the inner bore. In this case a gas cushion prevents direct contact of the molten glass with the inner circumferential wall of the shaft and/or the outer circumferential wall of the shaping means.

A molten glass delivery system is modified to match it with the overflow downdraw process. A substantial number of defects not removed by the finer are diverted to the unusable inlet and distal edges of the sheet. In one embodiment, the stirring device is relocated from the outlet to the inlet of the finer. In another embodiment, the basic shape of the finer is preferably changed from a cylindrical shape to a Double Apex (or Gull Wing) shaped cross-section, whereby the apexes of the finer contain the glass that will form the unusable inlet end of the glass sheet. The finer vent or vents are preferably located at these apexes such that any homogeneity defects caused by the vents are diverted to the unusable inlet end of the glass sheet. The finer cross-section has a high aspect ratio for increased fining efficiency as compared to a cylindrical finer.

The invention relates to optical glasses intended for the application fields of imaging, sensors, microscopy, medical technology, digital projection, photolithography, laser technology, wafer/chip technology, and for telecommunication, optical communication engineering and optics/lighting in the automotive sector, having a refractive index of 1.60≦n_d≦1.80 and/or an Abbe number of 30≦ν_d≦40 with a pronounced short flint character, good chemical stability, excellent crystallization stability, good solarization stability and the following composition (in wt. % based on oxide):

A vibration damping mechanism includes a frame, cushioning members, a heat sink, and fastening members. The frame has a base plate and supporting arms disposed on the base plate. Each cushioning member is disposed on a respective one of the supporting arms, and has a through hole. The heat sink supports a hard disk thereon such that the hard disk lies flat against and is secured on the heat sink, and has a plurality of fastening holes. Each fastening member extends through the respective through hole and threadedly engages the respective fastening hole such that the heat sink is suspended on the supporting arms and abuts against the cushioning members. Thus, the area of contact between the heat sink and the hard disk is increased to enhance the heat transfer efficiency, and the cushioning members provide the heat sink and the hard disk with a cushioning effect.

A device and process for forming hollow glassware comprising producing solid glass blanks in a manufacturing line, storing the blanks, feeding the blanks to a manufacturing line for forming hollow glassware, preheating the blanks during the feeding step, supplying the preheated blanks to a heating stage, heating to form solid plastically deformable glass globs, transferring the glass gobs to a blow molding stage and blow molding the glass gobs supported by a bottom lifter in a blow mold.

An invert mechanism for moving parisons between a pre-forming station and a finishing forming station of a glass forming machine is disclosed. The mechanism is disposed above a cover plate of a frame of the glass forming machine. An electric motor is disposed with its horizontal longitudinal axis above the cover plate. A driven shaft of the electric motor is connected to a horizontal invert shaft by means of a transmission. Between the driven shaft of the electric motor and the transmission a planetary gear is connected.

An apparatus for manufacturing 3D glass, the apparatus including: a molding part for molding a glass substrate; an assembling and disassembling part for carrying-out the molded glass substrate and replacing the molded glass substrate with an other glass substrate; and a loading part for loading the molded glass substrate is disclosed. A method for manufacturing 3D glass including: carrying-in a mold including a glass substrate into a chamber of a molding part; preheating the carried-in mold; molding the glass substrate by pressing the heated mold; cooling the molded glass substrate; and carrying-out the molded glass substrate and carrying-in an other glass substrate into the mold is also disclosed.

A method and a machine for the production of hollow glassware articles, by the blow-and-blow, press-and-blow, press-and-blow paste mold and direct-press processes in a glassware forming machine including single or multiple machine sections each having single or multiple-cavity, comprising: forming a parison in an inverted orientation, into a blank mold and a first transferable and open-able neck ring mold held by an inverting apparatus having a first and a second diametrically opposed arms, each arm holding a transferable and open-able neck ring mold; inverting the parison held by the first transferable and open-able neck ring mold, by rotating the first arm 180° to an upright orientation at an intermediate station, while the second arm with a second transferable and open-able neck ring mold is simultaneously placed at the parison forming station; transferring the first transferable and open-able neck ring mold holding the parison in an upright orientation, from the intermediate station, to a blow mold station, by a transference apparatus; releasing the first parison into a blow mold, and turning back the first transferable and open-able neck ring mold empty to the first arm of the inverting apparatus, at the intermediate station to be placed again at the parison forming station by rotating the first arm additional 180°, completing a 360° turn, while the second arm reaches to the intermediate station; blowing the parison into a blow mold to form a finished article; and transferring the finished article in an upright orientation, once the blow mold is opened, by a take out apparatus, to place it at a dead plate or at a carrying conveyor.

A mold for press-molding glass elements is disclosed, which comprises a substrate and a protective film; wherein the protective film, being arranged on the substrate, is made of molybdenum-ruthenium (Mo—Ru) alloy instead of those precious metal alloys such as platinum-iridium (Pt—Ir) alloy, iridium-rhenium (Ir—Re) alloy and iridium- ruthenium (Ir—Ru) alloy, etc., being used as the protective film of prior-art molds. According, the mold of the invention can be manufactured at a comparatively lower cost while is capable of being used for press-molding glass elements of high precision and high softening point.

A glassware forming machine baffle arm assembly that includes a quick-connect/disconnect arrangement mounting a baffle manifold on a baffle arm. The arrangement includes a baffle arm having an aperture, and a baffle manifold having a segment extending through said aperture and permitting rotation of said baffle manifold with respect to said baffle arm. The arrangement also includes a threadless nut, and a bayonet connection between said threadless nut and said baffle manifold segment.

A process for manufacturing a hollow glass body by means of an individual section (IS) machine in a press and blow, narrow-neck press and blow, or blow and blow process, with a driving means that moves a plunger axially, to produce selected geometrical contours in a glass gob. The process steps include:

• • aligning and attaching a positioning ring directly, or via intermediate elements, on the IS machine, on which positioning ring a positioning device is provided,
  • aligning a guide tube, on an outer jacket surface on which a guide device is disposed and interacts with the positioning device of the positioning ring in the assembled condition,
  • aligning a plunger with a non-rotationally symmetrical plunger head with a guide device disposed thereon , which interacts with a positioning device provided in the assembled condition on, or in, the inner jacket surface of the guide tube such that the non-rotationally symmetrical outer contour of the plunger head passes through an aperture tool allocated to the IS machine during the press or blow procedure, and the contours of the plunger head and of the aperture tool generate the profile of the inner, or outer, wall of the hollow glass body.

The invention relates to the technical field of glass bottles, in particular to a preparation method of a high-performance glass bottle. The method can effectively remove internal stress of the glassbottle, so that the glass bottle has good strength and impact resistance and is not easy to break. The method includes the steps of S1, raw material preparation; S2, raw material crushing; S3, drying,wherein crushed raw materials are dried, the moisture content is reduced, the drying temperature is 100-120 DEG C, the drying time is 2-3 hours, and the raw materials need to be continuously stirredin the drying process; S4, raw material mixing and stirring, wherein all the raw materials are added into a mixing device for stirring and mixing, so that the raw materials are uniformly mixed and stirred, the stirring rotation speed is 250-260 r/min; S5, melting, wherein the mixed raw materials are conveyed into a smelting furnace for heating, the heating temperature is 1550-1600 DEG C, and heating time is 9-11 hours; S6, molding of the glass bottle; S7, cooling; S8, annealing, wherein the annealing temperature is 380-600 DEG C, and the annealing time is 180-220 minutes; S9, cooling; S10, inspecting and packaging.

An I.S. machine has a blankmold which is open at the top and includes inner and outer annular top sealing surfaces. Associated with the blankmold is a baffle including a body having a cup shaped portion closed with a vertical cylindrical bore open at the bottom, an annular bottom sealing surface for sealingly engaging the blankmold outer annular top sealing surface, and a top having a hole. A tubular sleeve communicates with the hole and extends vertically upwardly from the top of the body. A piston has a cylindrical head including a top surface, a cylindrical sealing surface and an annular bottom sealing surface having a plurality of radial notch means across the bottom thereof. A tubular rod extends vertically upwardly from the top surface for slidable displacement in the tubular sleeve, and a collar is secured to the top of the rod. A spring located between the collar and the cup shaped portion urges the cylindrical head vertically upwardly to a position whereat the cylindrical head top surface engages the top of the cup shaped portion. The collar is pneumatically displaced vertically downwardly at a high pressure to bring the cup shaped portion annular surface into sealing engagement with the blankmold outer annular sealing surface. The pressure is then reduced so that a predetermined distance separates the cylindrical head annular bottom sealing surface and the blankmold inner annular sealing surface so that settle air can be introduced into the mold, and then the pressure is again raised to the high pressure for parison formation.

A molding die for molding glass and renewal method thereof. The molding die includes a substrate, a nickel-phosphorous alloy layer, with phosphorous content 30 wt % or less, overlying the substrate, an intermediate layer overlying the nickel-phosphorous alloy layer, and a passivation film overlying the intermediate layer.

The invention relates to the technical field of glass processing and particularly relates to a manufacturing method for a bottle. The method comprises the following steps: (1) preparing materials; (2) melting; (3) forming, namely heating the compressed air and then introducing into an initial forming mold, introducing the molten glass into the initial forming mold, blowing the heated compressed air into the initial forming mold, thereby acquiring an initially formed bottle, and then transferring the initially formed bottle into a forming mold and blowing into the compressed air, thereby acquiring a formed bottle; (4) post-processing, namely annealing, spraying and packaging, thereby acquiring an end product of a glass bottle. According to the technical scheme, the waist breaking can be effectively prevented and the production quality of the glass bottle can be improved.