854 results about "Molten glass" patented technology

The invention relates to the technical field of non-electrical variable control, in particular to a digital visual control system and method for a glass bottle production line. The method comprises the following steps: acquiring digital image data of molten glass; molten glass bubble distribution is identified based on the molten glass digital image data, the quality state of the molten glass is evaluated, and micro-defect distribution map data is generated; collecting the internal temperature of the smelting furnace through a temperature sensor array, and constructing a three-dimensional temperature field distribution model of the smelting furnace; and predictively optimizing and adjusting the heating control parameters of the smelting furnace based on the three-dimensional temperature field distribution model of the smelting furnace, and generating a regional heating power distribution strategy. According to the invention, through fusion of a plurality of advanced technologies, accurate sensing and whole-process linkage control of the molten glass state are realized, intelligence, quality uniformity and process visualization level of glass bottle production are significantly improved, and glass manufacturing is promoted to develop towards the intelligent and efficient direction.

The invention discloses a wiredrawing and plastic coating device for glass fiber production and processing, and particularly relates to the technical field of glass fiber production and processing, the wiredrawing and plastic coating device comprises a base, a first longitudinal frame is fixedly mounted on one side of the top end of the base, and a mounting seat is fixedly mounted at the top end of the first longitudinal frame; a wire drawing mechanism is fixedly mounted on the side, away from the first longitudinal frame, of the mounting base, a second longitudinal frame is fixedly mounted on the side, close to the first longitudinal frame, of the top end of the base, a heating crucible used in cooperation with the wire drawing mechanism is fixedly mounted on the top of the second longitudinal frame, and a plastic coating part is fixedly mounted at the bottom of the wire drawing mechanism; according to the glass fiber drawing and plastic coating device, the drawing mechanism is arranged, the plastic coating part and the winding mechanism are used in cooperation, drawing processing and plastic coating processing of glass fibers are carried out, continuous and uniform winding and winding are carried out on the glass fibers, shutdown is not needed, generation of molten glass accumulation is reduced, the production efficiency is improved, and the production cost is reduced. Therefore, the overall wire drawing efficiency of the molten glass is improved.

The invention provides a package substrate and a manufacturing method thereof. The packaging substrate comprises a plurality of conductive columns which are formed on a wiring layer on a plate body of a semiconductor plate and are electrically connected with the wiring layer, molten glass coats the wiring layer and the conductive columns, then the molten glass is solidified to form a glass layer, and a circuit layer which is electrically connected with the plurality of conductive columns is formed on the glass layer. Therefore, the glass layer is formed by the molten glass, so that the material characteristic of the glass layer is closer to that of a plate body of a semiconductor plate, and the bonding force between the plate body and the glass layer can be improved when a layer-adding process is carried out.

The invention belongs to the technical field of zirconium oxide refractory parts, and particularly relates to a densified anti-permeation zirconium oxide refractory part and a manufacturing method thereof. According to the scheme, raw materials with specific components and dosage are selected and subjected to the steps of pretreatment, mixing, filling forming, sintering, aftertreatment and the like. Through gradient structure design, grain boundary regulation and control and surface defect repair, the prepared zirconia refractory part has high volume density (larger than or equal to 5.76 g / cm), low apparent porosity (smaller than or equal to 0.36%), high bending strength (larger than or equal to 535 MPa) and excellent molten glass permeability resistance (the erosion depth is smaller than or equal to 0.2 mm). Wherein the gradient structure reduces the interface stress and inhibits ZrO phase change, the rare earth oxide is added to form a high-viscosity glass phase to block the diffusion path of erosion ions, the molten salt impregnation process improves the compactness and durability of the material, and the requirement of the modern industry for the high-performance refractory material is met.

The invention provides a flame-retardant plant fiber composite material and a preparation method thereof, and the preparation method comprises the following steps: modifying a phosphorus-containing flame retardant by using a biomass phenolic group-containing compound, and compounding with low-temperature molten glass powder and a two-dimensional lamellar nanosheet to construct a flame-retardant system; the composite material fiber reinforced phase is pretreated; and distribution optimization of a flame-retardant system is realized through layering hot press molding. According to the flame-retardant plant fiber composite material designed by the invention, the combustion characteristic of the plant fiber composite material is considered, and the consumption of a flame retardant can be greatly reduced by the distribution optimization design; no toxic solvent is used in the technological process, so that the method has relatively good safety and environmental friendliness; meanwhile, the excellent flame retardant property is realized.

The invention provides high-conductivity main gate electrode silver paste and a preparation method and application thereof, and belongs to the field of solar cells. The main gate electrode silver paste is composed of the following components: 0.5-4 parts of a glass material, 50-70 parts of a silver conductive material, 10-30 parts of a silver alloy conductive material, 1-3 parts of an organic auxiliary agent, 1-3 parts of a conductive polymer, and 10-15 parts of an organic carrier. The glass material is composed of a first glass material and a second glass material; the first glass material is a Bi-B-Zn lead-free low-temperature molten glass material; and the second glass material is a P-V-Zn lead-free low-temperature molten glass material. By reasonably designing the chemical components of the main gate electrode silver paste, the conductivity of the main gate electrode silver paste is improved.

The invention discloses high-strength high-temperature-resistant fireproof industrial glass and a preparation method thereof, and relates to the technical field of glass manufacturing. The industrial glass is prepared from the following raw materials: silicon dioxide, boric oxide, aluminum oxide, sodium oxide, potassium oxide, niobium phosphate, a composite reinforcing component and a clarifying agent, the composite reinforcing component is prepared from hafnium oxide, gadolinium oxide and zinc oxide; the clarifying agent is obtained by mixing cerium dioxide and tin oxide. The preparation method of the industrial glass comprises the following steps: preparing functional components, melting glass, forming a glass substrate, and preparing the industrial glass. The prepared industrial glass is high in strength, good in high-temperature stability and excellent in fireproof performance.

The invention belongs to the field of inorganic non-metallic materials, and particularly relates to a method for improving the strength and modulus of continuous basalt fibers through multi-element mixing of raw materials. Different basalt raw materials for fibers are mixed, the mass percent content of raw material minerals and main oxides, namely the mass percent content of network forming bodies, network intermediates and network changing body oxides, is properly adjusted, and on the premise that the advantages of'nature 'and'environmental protection' of the continuous basalt fibers are not changed, the continuous basalt fibers are obtained. By adding a proper amount of enhanced modulus-increasing oxide which is high in bond strength and free of environmental harm, the integrity of a network structure of the glass is enhanced, a trace amount of atmosphere (oxidation or reduction) regulator is introduced, and the ratio of FeO / (Fe2O3 + FeO) in a mixed material is accurately controlled, so that the homogeneity and the thermal conductivity of molten glass in the fiber drawing production process are greatly improved, and the production efficiency is improved. Therefore, the diathermancy and homogeneity of the molten liquid are more accurately controlled, and the strength and modulus of the continuous basalt fiber precursor are improved on the premise of ensuring continuous and stable industrial production.

The invention relates to the technical field of glass bottle preparation, and discloses an energy-saving glass bottle small opening pressing and blowing device and method.The energy-saving glass bottle small opening pressing and blowing device comprises a mounting bottom plate and further comprises a transverse blowing unit arranged on the mounting bottom plate; the transverse blowing unit comprises a mold rotating part and a blowing rotating part which are arranged on the mounting bottom plate; by arranging the rotatable transverse mold barrel and the transfer barrel, when the transfer barrel injects high-pressure gas into molten glass through the pressing and blowing groove, the molten glass can be driven to continuously rotate at a high speed, and a bottle body of the molten glass is in a uniform state and consistent in thickness in the blowing process through centrifugal force generated by high-speed rotation; and under the action of centrifugal force, internal molten glass can be assisted to move towards the outer side, so that the blowing time is effectively shortened, the production efficiency of glass bottles is improved, and the energy consumption in the production process is reduced.

To provide glass fiber yarn and a method for manufacturing the same.SOLUTION: A method for manufacturing glass fiber yarn comprises a coating step of coating a molybdenum compound on the surfaces of inorganic particles to form the surface-treated inorganic particles; a sintering step of sintering the surface-treated inorganic particles on a temperature condition of 400 to 1,000°C in a nitrogen gas atmosphere; a mixture step of mixing the surface-treated inorganic particles into a molten glass raw material; and a spinning step of spinning the molten glass raw material including the surface-treated inorganic particles to form glass fiber yarns.SELECTED DRAWING: Figure 1

The invention relates to the technical field of glass, in particular to an alkali-free aluminoborosilicate glass composite clarifying agent and a clarifying method thereof. The alkali-free aluminoborosilicate glass composite clarifying agent is prepared from the following raw materials in percentage by mass on the basis of the total mass of alkali-free aluminoborosilicate glass: 0.4 to 5.5 percent of halogen alkaline earth metal salt, 0.03 to 0.4 percent of lanthanum oxide, 0.01 to 0.4 percent of tin dioxide and 0.01 to 0.3 percent of cerium dioxide. The alkali-free aluminoborosilicate glass composite clarifying agent is applied to alkali-free aluminoborosilicate glass, and the problems that the alkali-free aluminoborosilicate glass is poor in clarifying effect and has many bubble defects are solved; the corrosion of high-temperature molten glass to refractory materials at parts such as a tank furnace and the like is reduced, so that the number of stone defects of the refractory materials in the glass is reduced, and the service life of the refractory materials of the furnace is prolonged.

The utility model relates to a glass kiln neck water drum device which is partially arranged in a kiln in a penetrating mode and comprises a supporting assembly, a water drum assembly and an adjusting assembly. The water bag assembly is connected with the supporting assembly, the water bag assembly comprises at least one group of cooling pipelines, each group of cooling pipelines comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is communicated with the water outlet pipeline, and the height of the water inlet pipeline is lower than that of molten glass. The adjusting assembly comprises a first electromagnetic valve, a second electromagnetic valve, at least one group of thermocouples and a control module, the first electromagnetic valve is arranged on the water inlet pipeline, the second electromagnetic valve is arranged on the water outlet pipeline, at least one group of thermocouples are arranged on the water outlet pipeline, and the first electromagnetic valve, the second electromagnetic valve and the thermocouples are all electrically connected with the control module. According to the technical scheme, the problem that in the prior art, the water temperature adjusting accuracy of the neck water bag is low is effectively solved.

The invention discloses sand grains with a water storage structure and a preparation method and application thereof. The method comprises the steps that S1, sand grains with the grain size ranging from 0.1 mm to 1 mm are selected, the grain size distribution meets the condition that D50 is equal to 0.3 mm, clay impurities are screened out, and the sand grains are placed on a sand grain base plate (1) after being cleaned and dried; s2, nano silicate powder is uniformly sprayed on the surfaces of the sand grains through an electrostatic spraying technology, so that a silicate glass layer (5) is formed on the surfaces of the sand grains; s3, a microarray lens (3) is used for dividing a laser source into multiple laser beams, each laser beam irradiates the silicate glass layer (5) on each sand grain in a one-to-one mode, silicate powder and the surface layers of the sand grains are co-melted, and then an amorphous net-shaped structure is formed; s4, argon is used for spraying the amorphous net-shaped structure so that the amorphous net-shaped structure can be rapidly cooled, and then a porous heterojunction structure is formed on the surface of the sand grains; and S5, scanning the silicate glass layer (5) by using the laser again, so that the part of the silicate glass layer (5) is molten again, silicate is decomposed to generate gas, and cooling and curing are performed after bubbles are formed in the molten glass. According to the invention, the sand grains have a certain water storage characteristic.

The invention belongs to the technical field of high-temperature-resistant elastic materials, and relates to a preparation method of a high-temperature-resistant ceramic fiber felt. The preparation method comprises the following steps: preparing a SiC nanowire dispersion liquid and a SiC micron fiber dispersion liquid, mixing the SiC nanowire dispersion liquid and the SiC micron fiber dispersion liquid, and carrying out filter pressing to obtain a SiC multi-scale nano / micron ceramic fiber felt matrix; enabling a silica sol protective agent to pass through the SiC multi-scale nano / micron ceramic fiber felt matrix in a suction filtration manner, cleaning and drying to obtain a high-temperature-resistant ceramic fiber felt precursor; and carrying out heat treatment on the high-temperature-resistant ceramic fiber felt precursor, and cooling to obtain the high-temperature-resistant ceramic fiber felt. When the prepared high-temperature-resistant ceramic fiber felt is in a high-temperature working environment, a molten glass phase formed by amorphous SiO2 at a high temperature cannot flow in the radial direction of the SiC micron fibers, a compact and uniform glass coating is formed on the surfaces of the micron fibers, the oxidation cracking phenomenon caused when the SiC fibers make contact with oxygen at the high temperature is effectively prevented, and the service life of the high-temperature-resistant ceramic fiber felt is prolonged. And the high temperature resistance of the material is improved.

The invention relates to the technical field of special glass manufacturing, in particular to a method for preparing ultrathin aluminosilicate glass, which comprises the following steps: mixing SiO2, Al2O3, MgO, K2O, Na2O and ZrO2 / Li2O in proportion; feeding the mixed raw material into a glass melting furnace for high-temperature melting to form molten glass; pouring the molten glass into a float tank filled with tin liquor, and forming a layer of uniform glass tape on the surface of the tin liquor; standing and cooling the glass tape in the tin bath until the glass tape is solidified to form plate glass; carrying out annealing treatment on the cured plate glass, and carrying out chemical strengthening treatment in the annealing treatment process; judging whether the chemical strengthening treatment meets a preset standard or not according to the strengthening warping value; secondarily judging whether the chemical strengthening treatment meets a preset standard or not according to the strength evaluation value; the plate glass which meets the preset standard through chemical strengthening treatment is cut to obtain the ultra-thin aluminosilicate glass, and the quality of the ultra-thin aluminosilicate glass is improved.

The invention discloses a low-glass-phase fused zirconia corundum brick with a special structure and a preparation method thereof. The fused zirconia corundum brick comprises the following chemical components in percentage by mass: greater than or equal to 32.5% of ZrO2, less than or equal to 15% of SiO2, less than or equal to 1.4% of K2O + Na2O + CaO + MgO, and the balance of Al2O3 and inevitable impurities. In addition, the content of a glass phase of the fused zirconia corundum brick is smaller than or equal to 20%, and the glass phase is divided into discontinuous blocky areas by a corundum phase in a microstructure. By optimizing the raw material ratio and the casting process, a unique microstructure is formed in the fused zirconia corundum brick, the glass phase of the fused zirconia corundum brick is uniformly divided into discontinuous areas by a dendritic corundum phase, coarse baddeleyite grains are accompanied around the discontinuous areas, the viscosity of the glass phase is remarkably improved by the structure, the flow connectivity of the fused zirconia corundum brick is effectively limited, and the fused zirconia corundum brick has good heat resistance. The product has excellent characteristics of high glass phase exudation temperature and low exudation amount, the product is particularly suitable for flame space parts of the glass melting furnace, pollution to molten glass can be avoided due to the low glass phase exudation characteristic of the product, the quality of the glass product can be improved, and the service life of the furnace can be prolonged.

A molten glass transport system includes rails spaced laterally apart from one another and establishing a cup transport path and cup carriages suspended from the rails and movable back and forth along the cup transport path of the rails. A related method and glass manufacturing system are also disclosed.

The invention discloses a method for improving the mechanical property of Li2O-SiO2-P2O5-ZrO2-K2O glass ceramic by two-step heat treatment crystallization, which comprises the following steps: 1, respectively weighing Li2CO3, SiO2, (NH4) 2HPO4, nano ZrO2 and K2CO3, uniformly wet-mixing, and drying to obtain a mixed material; 2, the mixed material is heated and subjected to heat preservation to form molten glass, and then the molten glass is cast to obtain Li2O-SiO2-P2O5-ZrO2-K2O original glass; and 3, carrying out two-step heat treatment crystallization on the Li2O-SiO2-P2O5-ZrO2-K2O raw glass, and carrying out two-step heat treatment crystallization on the raw glass. According to the invention, the Li2O-SiO2-P2O5-ZrO2-K2O glass ceramic obtains a good microstructure and good mechanical properties by regulating and controlling the temperature and time of two-step heat treatment crystallization, and has a wide application prospect in the field of dental restoration.

The invention discloses a low-swing high-efficiency homogenizing stirring structure and a stirring method, and fully considers that single-side glass flows into a stirring tank, nonuniform acting force is generated on a stirrer, long-term stable operation of the stirrer is influenced, and single-side flowing-in glass liquid is easy to form a viscosity-temperature segregation phenomenon at a near end; and the influence on the homogenization effect is weakened. The acting force transition of fluid before the fluid enters the stirring tank body is realized by adding the special-shaped buffer pool, and molten glass is continuously injected into the stirring tank in a 360-degree overflow manner, so that the rotation stability of the whole stirrer is remarkably improved, and full guarantee is provided for long-life reliability and high-flow efficient homogenization of equipment. According to the stirrer, uniform stress of molten glass on the stirrer in the circumferential direction can be realized, the problem of abnormal swinging of the stirrer in the operation process is remarkably improved, high-flow molten glass is efficiently homogenized, and an equipment guarantee is provided for manufacturing of high-flow substrate glass.

Apparatuses and methods for detecting anomalies during production of glass sheets are described herein. In some examples, a glass forming apparatus pulls down molten glass to produce a glass sheet. In addition, a plurality of cameras capture images of an interior of a housing assembly of the glass forming apparatus and at least a portion of the glass sheet. In addition, the computing device receives the image from the camera and applies a machine vision process to the image. Based on applying the machine vision process to the images, the computing device determines a location of an object in each of the images. The computing device further determines an anomaly based on the location of the object in each of the images. The computing device then generates anomaly detection data based on the anomaly, and stores the anomaly detection data in a database.

The invention discloses a one-kiln two-line production process for energy-saving glass, and relates to the technical field of energy-saving glass plate production. A shunting pressure stabilizing chamber, a central partition wall and an electromagnetic-platinum combined stirring device are arranged at the tail end of a melting furnace, and are matched with prolonging of clarification residence time and a microbubble bubbling device, so that a highly uniform temperature field and component distribution can be obtained before molten glass enters a feeding channel, and bubbles and inclusions are fully eliminated. By means of the collaborative measure, the melt cleanliness is remarkably improved, optical defects such as stripes, stones and white points in the subsequent forming process are greatly reduced, and the appearance and the physical strength of a finished product are more reliable. By means of the Y-shaped double feeding channels and the independent temperature control tin bath, ultra-thin glass and medium-thickness glass can be produced at the same time in the same melting furnace and do not interfere with each other. The main line focuses on the flatness and the optical quality of the energy-saving glass of the building curtain wall, and the branch line focuses on the thickness control and the surface smoothness of the ultrathin energy-saving glass.

The invention relates to the technical field of fireproof glass, in particular to a nano composite material coating and a preparation method for applying the nano composite material coating to a surface film layer of an initial substrate for single-piece non-heat-insulation fireproof glass. The nano composite material coating is prepared from the following raw materials in parts by weight: 50-80 parts of nano composite oxide, 10-15 parts of a toughening material, 15-30 parts of molten glass and 1-5 parts of a fluxing agent; the preparation method comprises the following steps: S1, by taking a fluxing agent as a medium, mixing a nano composite oxide and a toughening material, grinding for 1-2 hours, adding a glass melt into the mixture, continuously grinding for 2-3 hours, heating to 180-220 DEG C, carrying out heat treatment, and removing the fluxing agent, so as to obtain a nano composite material; and S2, depositing on the surface of the glass substrate by adopting a physical vapor deposition method or a chemical vapor deposition method to form the nano composite material coating. According to the nano composite material coating prepared by the method, the toughness and the impact strength of the glass are improved, the fire-resistant integrity time of the glass is prolonged, and meanwhile, the light transmittance and the ultraviolet radiation resistance of the glass are better.

According to the sealed full-automatic photovoltaic glass calendaring forming method and equipment, molten glass liquid is calendaring through a calendaring conveying system and then conveyed into a closed space, the glass liquid passes through all heat preservation areas, and under the combined action of all the heat preservation areas and a cooling system, the temperature of the glass liquid is gradually reduced to form a glass belt with a certain thickness; in this way, the ambient temperature around the calendering equipment can be effectively reduced, and then the service life of electronic components on the calendering equipment is effectively prolonged; each driving system on the rolling equipment is controlled to move through the console, and the detection assembly collects motion data and feeds back the motion data to the console, so that initial parameters of glass can be quickly optimized, a process parameter database is established, and debugging and calibration of the equipment are quickly completed. According to the invention, the difficulty and the cost of glass early-stage debugging can be greatly reduced, the production efficiency and the control precision are effectively improved, and the production quality of photovoltaic glass is ensured.

The invention discloses an overflow brick, device and method for stably producing substrate glass, and belongs to the technical field of liquid crystal substrate glass manufacturing. According to the overflow brick provided by the invention, a split type arched overflow brick structure is adopted, so that the influence of the gravity of the overflow brick on the production stability is weakened; meanwhile, a supporting and clamping device of an L-shaped structure is introduced, and negative effects caused by creep deformation are counteracted by applying horizontal clamping acting force. The fixed connecting surface of the first brick body and the second brick body is designed to be the arched curved surface, and the clamping acting force provided by the supporting and clamping device is combined, so that the overall structural stability of the overflow brick is enhanced, and the overflow brick can work stably in a high-temperature and long-time working environment; the creep phenomenon possibly occurring in the production process of advanced-generation substrate glass can be inhibited, and deformation is effectively resisted; and the molten glass is ensured to overflow and pull down in a stable and uniform state, so that the thickness uniformity of the overflow glass is improved, and the production quality of the substrate glass is improved.

A hybrid glass manufacturing furnace for supplying a unit for floating the glass on a molten metal bath, includes, from upstream to downstream: an electric melting zone with a cold-top including electrodes for melting a vitrifiable mixture in order to obtain a bath of glass; a refining and homogenizing zone with a hot-top, including a first convection loop and a second convection loop; and a zone for cooling the glass formed by a conditioning tank which, being passed through by the second convection loop, is connected to at least one flow channel, wherein the hybrid furnace includes at least one tank neck that includes a floor and connects the electric melting zone to the refining and homogenizing zone of the glass and the hybrid furnace includes a non-return separation device to prevent the molten glass in the refining and homogenizing zone from returning to the melting zone.

The invention discloses a TGV through hole processing method and a glass substrate, and the TGV through hole processing method comprises the following steps: matching a mold according to the size data of a TGV through hole, the mold comprising a metal wire matrix matched with the TGV through hole; injecting the molten glass into a mold, and controlling the temperature of the molten glass to be not lower than a first preset temperature; melting points of metal wires in the metal wire matrix are higher than a first preset temperature; carrying out annealing treatment on the glass melt in the mold; carrying out cooling treatment on the glass melt subjected to annealing treatment; the cooled glass is cut, and the cutting direction is perpendicular to the tensioning direction of the metal wire matrix; and placing the cut glass in an etchant solution, wherein the etchant solution is used for corroding the metal wire matrix. The glass through hole obtained through the TGV through hole machining method is better in side wall perpendicularity and smoothness effect.

The invention relates to the technical field of glass bottle production, in particular to a three-dimensional simulation design method and system for a light-weight glass bottle production digital mold. The method comprises the following steps: constructing a digital mold geometric model for a glass bottle mold; a bubble escape priority path is identified according to the digital mold geometric model, and a glass bottle digital simulation model is constructed; executing molten glass flow-heat transfer-bubble evolution coupling simulation based on the glass bottle digital simulation model to extract a potential bubble nucleation and aggregation area; calculating a bubble defect tendency value of the potential bubble nucleation and aggregation area, and performing glass bottle production defect space mapping to generate a glass bottle production defect risk area; differentiated defect risk optimization is carried out on the glass bottle production defect risk area, so that the production design requirement of the light-weight glass bottle is met. According to the invention, through bubble escape path identification and three-dimensional coupling simulation, accurate positioning and differential optimization of the bubble defect risk of the glass bottle are realized.

A molten glass transporter includes a carriage frame including upper and lower sides, and a transport cup carried by the carriage frame and including a conduit including an inlet disposed at the upper side of the carriage frame, and an endcap disposed at the lower side of the carriage frame below an outlet end of the conduit. A related method is also disclosed.

A glass melting furnace for preparing glass bottles relates to the technical field of glass melting furnaces and comprises a melting furnace and a heat recoverer. The smelting furnace is provided with an opening, and the heat recoverer is connected with the opening in a sealed mode. A feeding area, a heating area, a homogenizing area and a cooling area are sequentially arranged in the smelting furnace in the direction of an assembly line, the depth of molten glass in the feeding area, the depth of molten glass in the heating area and the depth of molten glass in the cooling area are the same and are all lower than the depth of molten glass in the homogenizing area, and a feeding port is formed in the side wall of the feeding area of the smelting furnace. A material receiving platform is arranged in the feeding area and matched with the feeding port, and raw materials enter the smelting furnace from the feeding port, are melted on the material receiving platform and then flow into the bottom of the feeding area in the smelting furnace. The material receiving platform is arranged for buffering the added glass raw materials, and the glass raw materials are melted on the material receiving platform and then enter the molten glass in the melting furnace in the form of high-temperature molten glass, so that the condition of convection in the furnace is avoided, and the homogenizing and clarifying temperature of the molten glass in the melting tank is increased.

The invention discloses tellurium-lead-lithium oxide glass powder for BC battery N-region conductive paste and a preparation method of the tellurium-lead-lithium oxide glass powder, and belongs to the field of photovoltaic silver paste. The glass powder is prepared from components with high contents of Pb, Te and Li as follows: aTeO2-bPbO-cLi2O-dBi2O3-eWO3-fZnO-gSiO2-hNa2O, and the glass powder is prepared from components with high contents of Pb, Te and Li; wherein a + b + c + d + e + f + g + h = 1, 0.2 lt; a < lt >; 0.1 1t, 0.4, 0.1 1t; blt; 0.1 1t, 0.4, 0.1 1t; clt; ct; 0.25, 0 lt; dlt; 0.1, 0 lt; lt, lt; 0.1, 0 lt; flt; 0.1, 0 lt; glt; 0.1, 0 lt; hlt; 0.05, a + b > 0.5, and the ratio of c to h is (3-10): 1. Through specific Pb, Te and Li content control and a specific Li / Na ratio, a strong corrosion effect on a poly layer of a battery piece is achieved, more silver ions dissolved in molten glass can be recrystallized on the surface of a silicon wafer, and thus good ohmic contact is achieved.