15results about "Pot furnaces" patented technology

Methods for producing a glass that contains no bubbles with diameters of more than 0.1 mm and in which the occupied area fraction of bubbles with diameters of 0.1 mm or less is 0.05% or less, the methods including: placing raw material powders for at least one oxide of Si and a di- or higher-valent metal element in a container, mixing the raw material powders together and then melting the mixture by heating under reduced pressure to obtain a melt; pressurizing the melt in a He gas atmosphere, or heating the melt in an inert gas atmosphere other than a He gas atmosphere and then pressurizing the melt in the inert gas atmosphere; and cooling the melt.

The application relates to the technical field of glass processing, and discloses an energy-saving and environment-friendly glass processing furnace, which comprises a three-section article moving mechanism and a rotary material pouring mechanism, is internally provided with a No. 2 rotating shaft which is installed directly above the three-section track and can rotate, a driving wheel which rotates with the No. 2 rotating shaft and can drive the driven wheel to rotate, a driving motor which is fixedly installed on one side of the No. 2 rotating shaft and can drive the No. 2 rotating shaft to rotate, and a friction driving disc which can control the linkage torque between the driving motor and the No. 2 rotating shaft. The energy-saving and environment-friendly glass processing furnace can automatically take out the heating crucible from the inside of the furnace body heat preservation outer cylinder and pour out the glass solution. Since the purpose is achieved by controlling the driving motor throughout the process, the safety hidden danger in the material taking and pouring process is reduced.

This invention provides a glass flake preparation apparatus, comprising, from top to bottom, a dipping module, a blowing module, and a crushing module. The dipping module includes a blowing head, a guide rail, and multiple crucibles. The blowing head has a slider that slides laterally downwards on the guide rail. The slider is fixedly connected to the blowing head via a telescopic rod, driving the blowing head to dip downwards. The multiple crucibles are arranged below the guide rail along its direction. The blowing module includes a funnel-shaped blowing cylinder and a valve. The valve is located at the bottom outlet of the blowing cylinder, and a blowing port is opened at the top of the blowing cylinder. The crushing module includes a receiving cylinder and a crusher. The crusher is located below the inlet of the receiving cylinder. The advantages of this invention are: it achieves a technological breakthrough in the efficient preparation of glass flakes with various compositions on the same device, integrating glass melting, blowing, and crushing processes into one device, and effectively avoiding the problem of glass flake powder flying everywhere during the crushing process.

The invention discloses a method for preparing oxide glass based on an induction melting process and the oxide glass, the preparation method comprises the following steps: using a composite crucible to bear initial glass powder, the composite crucible comprises a first oxide layer, a conductive material layer and a second oxide layer which are arranged from outside to inside, a gap is formed between the second oxide layer and the conductive material layer, the composite crucible further comprises a protective felt, the gap is filled with the protective felt, the protective felt wraps the outer side of the second oxide layer, the protective felt is of a fiber structure, and the melting point of the protective felt is not lower than that of the initial glass powder; the initial glass powder is heated to a molten state through electromagnetic induction, a melt is obtained, the heating power in the first stage is in positive correlation with the heating time, and the heating power in the second stage is in a decreasing trend; and carrying out casting molding on the melt, and cooling to obtain the oxide glass.

The utility model discloses a moving and overturning device for a glass experiment. The moving and overturning device comprises a moving carrier, an overturning platform, a limiting plate and a clamp, the movable carrier is installed on the limiting plate, the overturning platform is rotatably installed on the movable carrier through a rotating shaft, a bottom plate is arranged at the bottom of the overturning platform, a bottom face heat insulation plate is arranged on the bottom plate, a first vertical plate is arranged on one side of the overturning platform, second vertical plates are connected to the two sides of the first vertical plate, and a first vertical face heat insulation plate is arranged on one side of the first vertical plate. A second vertical face heat insulation plate is arranged on one side of the second vertical plate, the first vertical plate and the second vertical plate form a U-shaped frame, and one end of the clamp is supported on the movable carrier. According to the utility model, the platinum crucible and the lining thereof can be quickly moved out of the heating furnace platform through the moving and turning device, and molten materials are quickly poured into a preset sample preparation mold by using the turning platform, so that the success rate of sample preparation of the large-capacity platinum crucible is improved, and the safety risk in the process is reduced.

A glass composition which comprises main components consisting of, in % by mass: 50-80% of TeO2; 0-30% of Bi2O3; 0-30% of WO3; 0-30% of ZnO; 0-30% of BaO; 0-30% of GeO2; and 0-30% of Ga2O3, and to which at least one of the following elements to be added is introduced: 1-1000 mg / kg of Si4+; 1-1000 mg / kg of B3+; 1-1000 mg / kg of P5+; 1-1000 mg / kg of Li+; 1-1000 mg / kg of Na+; 1-1000 mg / kg of K+; 1-1000 mg / kg of Mg2+; 1-1000 mg / kg of Ca2+; and 1-1000 mg / kg of Al3+.

The utility model relates to the technical field of 3D (three-dimensional) glass printer accessories, and discloses a quick-release crucible and nozzle device, a glass smelting furnace is fixedly mounted at the top of a glass annealing furnace, a glass crucible is arranged in the glass smelting furnace, a communicating pipe is arranged at the bottom of the glass crucible in a penetrating manner, and a nozzle is arranged in the communicating pipe. A limiting plate is fixedly mounted at the top of the communicating pipe, a locking nut is in threaded connection with the outer side of the communicating pipe, a high-temperature nozzle is detachably mounted at the bottom of the communicating pipe, and a fixing ring is fixedly mounted on the outer side of the high-temperature nozzle. The threaded plug is driven by a tool to retreat in the threaded groove, the pushing force of the spring is reduced, then the locking force between the insertion block and the annular clamping groove is reduced, and then the whole high-temperature nozzle can be disassembled by holding the fixing ring and pulling the fixing ring downwards. And after the communicating pipe is cooled, the locking nut is detached from the communicating pipe, and then the communicating pipe is pushed out of the glass crucible, so that the glass crucible is conveniently detached in the process.

This invention relates to a method for manufacturing X-ray amorphous MAS glass, the X-ray amorphous MAS glass having: a mass ≥3 kg and a surface area-to-volume ratio ≤1.5 cm². ‑1 The method comprises the following steps: a) preparing a powder mixture having 10 to 40 mol% MgO, 5 to 30 mol% Al2O3 and 40 to 70 mol% SiO2 or precursors of these raw materials, and having auxiliary elements and foreign elements, wherein the auxiliary elements are elements of Group I and / or Group II and / or Group IV and / or Fe, wherein the total content of the auxiliary elements and foreign elements is set to at least 10 ppm to 300 ppm, especially at least 30 ppm to 150 ppm, particularly preferably at least 50 ppm to 100 ppm; b) melting the powder mixture prepared in step a); c) cooling the melt prepared in step b) and pulverizing the cooled melt into particles with a diameter ≤10 mm; d) heating and melting the particles obtained in step c); and e) cooling the melt obtained in step d).

The utility model provides a kind of high-precision quartz tube processing's melting device, it is related to quartz tube processing field, the utility model includes heat preservation box, for melting quartz sand's melting component;For crushing quartz sand's crushing component;And install between the anti-blocking component of the crushing component and melting component;The melting component includes: rotation is installed in the graphite crucible of the heat preservation box inside;And rotation is installed in the sealing bushing of the graphite crucible top;The anti-blocking component includes: vibration disc that elastically connects in the graphite crucible inside;Multiple high-temperature resistant springs are fixed in the vibration disc top.The utility model can rely on free falling quartz sand to drive vibration disc to vibrate by the anti-blocking component set between crushing component and melting component, drive inserting rod to move inside feeding port when vibration disc vibrates, quartz sand jammed in feeding port can be shaken and quickly fall down, to avoid feeding port blockage influence quartz sand normal feeding.

The utility model relates to the technical field of glass melting monitoring, in particular to a glass melting visualization device which comprises a heating furnace. A supporting table is arranged in the heating furnace; the heating furnace comprises a top plate; an observation hole is formed in the top plate; a camera shooting assembly is arranged on the side, away from the supporting table, of the top plate; the camera shooting assembly comprises a heat insulation lens and a purging assembly. The heat insulation lens is arranged at the top of the observation hole; the purging assembly is arranged on one side of the heat insulation lens; a crucible is arranged on the supporting table; a glass raw material is arranged in the crucible; the observation hole is formed above the supporting table; the internal condition of the crucible is overlooked and observed through the camera component, and the observation range is wide, so that the glass melting state is comprehensively observed; the observation hole is a fan-shaped through hole, so that the area of the heat insulation lens polluted by volatile matters of glass raw materials is reduced while the observation angle is ensured; the purging assembly performs argon purging on the heat insulation lens, and pollution and corrosion of volatile matter to the heat insulation lens are improved.

The utility model discloses a melting device for quartz crucible production, which belongs to the technical field of quartz crucible melting and comprises a melting box, a sliding chute is arranged at the bottom in the melting box, a threaded rod is arranged in the sliding chute, a sliding block is in threaded connection with the outer side of the threaded rod, a convex block is fixedly connected with the top of the sliding block, and a base is fixedly connected with the top of the convex block. A limiting groove is formed in the top of the base, and a driving motor is fixedly connected into the limiting groove. According to the melting device for quartz crucible production, firstly, a box door is opened along a hinge by holding a handle, then a quartz crucible is placed in a clamping device, a rotating disc is rotated by holding a rocker, a threaded rod is driven by the rotating disc to rotate, the threaded rod drives a sliding block to move, the sliding block drives a convex block to move, and the convex block drives a base to move; the base drives the clamping device to move, the clamping device drives the quartz crucible to move, and then the quartz crucible can be placed into the melting box, so that workers are prevented from being injured.

The utility model discloses a system for producing colored microcrystalline glass, which comprises the following devices: a microcrystalline glass melting device, a colored pigment melting device, a mixture melting device, a working platform, a forming machine and a communicating pipeline, the mixture founding device and the forming machine are located below the working platform, and the glass ceramic founding device and the colored pigment founding device convey a glass ceramic solution and a colored pigment solution to the mixture founding device through a first communicating pipeline and the mixture founding device; and the mixed material melt is conveyed to the forming machine through the second communicating pipeline.

The utility model discloses a crucible and melting equipment relates to glass processing technical field, crucible includes inner main part and jacket, the inner main part encloses and forms the melting chamber, the melting chamber is set to place the molten glass, the jacket covers the inner main part's side back to the melting chamber, the jacket and inner main part detachable connection. The utility model aims to improve the overall strength of the crucible, so that the deformation of the crucible at high temperature is reduced, and the safety is improved.

The utility model discloses a crucible kiln for a glass manufacturing test, which is characterized in that a heating flange, closest to the bottom of the crucible kiln, on a platinum discharge pipe in the existing crucible kiln is detached, an insulating sleeve is used for wrapping the part on the platinum discharge pipe, and a heating wire is arranged on the insulating sleeve to heat and preserve heat of the platinum discharge pipe. The current of the electric heating wire cannot act on the platinum discharge pipe, even if the distance between the electric heating wire and the platinum stirring rod is close, a loop cannot be formed in the molten glass due to potential difference, the number of bubbles in the molten glass can be reduced, and the problem that the molten glass in an existing crucible kiln is prone to generating bubbles due to potential difference can be effectively solved. The quality of the glass obtained by the test is closer to that of the actual production, and the test reliability is improved.

This glass composition contains, as main components: 50-80 mass% of TeO2; 0-30 mass% of Bi2O3; 0-30 mass% of WO3; 0-30 mass% of ZnO; 0-30 mass% of BaO; 0-30 mass% of GeO2; and 0-30 mass% of Ga2O3, wherein at least one among the following to-be-added elements, such as 1-1,500 mg / kg of Si4+, 1-1,500 mg / kg of B3+, 1-1,500 mg / kg of P5+, 1-1,500 mg / kg of Li+, 1-1,500 mg / kg of Na+, 1-1,500 mg / kg of K+, 1-1,500 mg / kg of Mg2+, 1-1,500 mg / kg of Ca2+, 1-1,500 mg / kg of Al3+, and 1-1,500 mg / kg of Sr2+, are introduced into the glass composition.