73results about How to "Improve melting ability" patented technology

The invention discloses a glass fiber tank furnace structure and a glass smelting method. The glass fiber tank furnace structure comprises a smelting part and a passage. The smelting part comprises a feeding tank for feeding a glass raw material, and a smelting pool for receiving the supplied materials and forming a glass liquid. A glass liquid separation device of the smelting pool and the passage is a throat or a baffle brick structure. The upper part of the smelting pool is provided with a crown, two side breast walls, a front wall, a back wall and a smoke flue. The smelting pool is divided into a zone A as a raw material zone, a zone B as a foam zone and a zone C as a clarification zone C along a glass melt flowing direction. The smelting pool is provided with at least one combustor, the combustor is installed on the crown or the breast walls, the combustor sprays flame to glass batch and the sprayed flame forms an included angle of 0-80 degrees with the two side breast walls and forms an included angle of 0 degree with the front wall or the back wall. The glass smelting method adopting the glass fiber tank furnace structure comprises that above the smelting pool of the glass fiber tank furnace structure, the at least one combustor is arranged on the crown or the breast walls; a gaseous oxidant and a gaseous, liquid or solid fuel fluid are supplied to the combustor; and the combustor sprays flame to the glass batch. The glass fiber tank furnace structure has the advantage of high heat transfer efficiency, small corrosion on a refractory material, long tank furnace service life, and energy saving.

The present invention relates to a cement-free alkali activated binder in which alkaline inorganic materials are appropriately added to an industrial waste such as blast furnace slag, fly ash, meta kaolin and the like, a method for producing mortar using the same and a method for producing cement-free alkali activated reinforcement mortar. Specifically, the present invention relates to a cement-free alkali activated binder that is not only environmentally friendly as being capable of dramatically reducing the carbon dioxide emission, which has been remained as a problem for producing Portlandcement, but also has an excellent property, a method for producing mortar using the same and a method for producing cement-free alkali activated reinforcement mortar.

A submount with an electrode layer having excellent wettability in soldering and method of manufacturing the same are disclosed. A submount (1) for having a semiconductor device mounted thereon comprises a submount substrate (2), a substrate protective layer (3) formed on a surface of the submount substrate (2), an electrode layer (4) formed on the substrate protective layer (3) and a solder layer (5) formed on the electrode layer (3) wherein the electrode layer (4) is made having an average surface roughness of less than 1 [mu]m. The reduced average surface roughness of the electrode layer (4) improves wettability of the solder layer (5), allowing the solder layer (5) and a semiconductor device to be firmly bonded together without any flux therebetween. A submount (1) is thus obtained which with the semiconductor device mounted thereon is reduced in heat resistance, reducing its temperature rise and improving its performance and service life.

The invention provides a flux for electroslag overlay welding. The flux is advantageous in that, in electroslag overlay welding for which band steel formed by a Ni-based alloy is used, even under the condition of small heat input amount in welding, stability of welding is excellent, and good welding bead shape and welding bead appearance can be obtained. The flux (1) is used for the electroslag overlay welding for which the band steel formed by the Ni-based alloy is used. The flux (1) is a sintered flux obtained by mixing and sintering, in total mass percent of the flux, 3-10 mass% of a molten flux as a part of raw materials for the sintered flux, wherein the molten flux comprises CaF2: 5-20 mass%, Al2O3: 10-20 mass%, SiO2: 40-60 mass%, and CaO: 15-30 mass%. In addition, whole composition of the flux is optimized.

The invention relates to a single-screw extruder comprising a cylinder (1), which comprises a transition zone (14), and a homogenizing zone (12) that is connected to the transition zone (14), and a screw (2) which is rotatably supported in the cylinder (1) and which has at least two consecutive displacement parts (6, 8) in the homogenizing zone (12), the second displacement part of which in the conveying direction is designed as a shearing part. The aim of the invention is to provide a single-screw extruder which enables an improved melting effect along with an increased throughput, a lowered melt temperature, and an improved pressurization capability. According to the invention, it was recognized that this aim can be achieved in that at least one groove (4) running in the longitudinal direction in the inner cylinder wall is provided in the homogenization zone (12) of the single-screw extruder, and said groove ends in the area between a first displacement part and the subsequent shearing part (8) as viewed in the conveying direction.

The invention relates to a comprehensive utilization method of dust and mud in steelmaking process, which is specifically a spheroiditic slagging agent production process. The invention comprises the following steps: drying dust and mud in the open, adding 2-6% burnt lime and 0.5-1% adhensive to the mud to produce mixture, sending the mixture to agitator to intimate mixing, sending the mixture to roller to be pulverized fully, sending it to pelletizer to produce green-ball of phi20-phi30mm size by roll-type briquetting process in presure of 40-60KN, processing green-ball in jigging screen to get green-ball end product on sifter and sliver as return material under sifter and sending green-ball to tower furnace via charging system to be adglutinate and get end product.

A glass flake (10) having improved heat resistance and chemical resistance is formed from a glass base material satisfying, in mass %, 60≦SiO₂≦75, 5<Al₂O₃≦15, 3≦CaO≦20, 6≦Na₂O≦20 and 9≦(Li₂O+Na₂O+K₂O)≦13. When 9≦(Li₂O+Na₂O+K₂O)≦13 is satisfied in mass %, the CaO content and the Na₂O content are preferably set within the ranges of 5≦CaO≦20 and 6≦Na₂O≦13, respectively. When 13≦(Li₂O+Na₂P+K₂O)≦20 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 3≦CaO≦15 and 9≦Na₂O≦20, respectively. The working temperature of the glass base material is preferably 1180° C.-1300° C. The temperature difference ΔT obtained by taking the devitrification temperature of the glass base material from the working temperature of the glass base material is preferably 0° C.-200° C. The glass transition temperature of the glass base material is preferably 550° C.-700° C. The acid resistance index ΔW of the glass base material is preferably 0.05-1.5 mass %.

The invention relates to the field of glass and particularly relates to alkali-free silicate glass and a preparation method and application thereof. The alkali-free silicate glass comprises, by mole, 65-75 mol% of SiO2, 11-17 mol% of Al2O3, Ga2O3 and GeO2, 0-8 mol% of B2O3, 0-15 mol% of MgO, 2-10 mol% of CaO, 0.5-14 mol% of SrO and BaO, 0-10 mol% of TiO2, 0.01-2 mol% of Ta2O5 and 0.01-0.5 mol% of Tl2O3. The alkali-free silicate glass has high thermal stability and dimensional stability, a high strain point, a high specific modulus, a low melting temperature, a low liquidus temperature and low density and is suitable for large-scale industrial production.

The invention relates to a glass tank for melting high-boron low-alkali or alkali-free glass and manufacturing a TFT-LED glass substrate. The glass tank comprises a heating system matched with the glass tank and is characterized in that: the internal structure of the glass tank comprises a pre-melting tank with a feed inlet, a cross flame melting tank connected with the pre-melting tank, a cross flame clarification tank communicated with the cross flame melting tank through a lower passage of a flow-limiting diaphragm wall, and a cross flame work pool communicated with the cross flame clarification tank through a pipeline; and a forming passage for delivering molten glass is formed on the cross flame work pool. The glass tank reasonably utilizes energy; and the generated molten glass has the advantages of quick temperature rise, uniformity and high defoaming efficiency.

The invention provides high-refractive-index and low-dispersion optical glass. The optical glass consists of the following raw materials in percentage by weight: 5-32 percent of SiO2 and B2O3, 45-65 percent of La2O3, Gd2O3 and Y2O3, 0.5-10 percent of ZnO, 1-20 percent of TiO2 and Nb2O5, 0-15 percent of ZrO2, 0-2 percent of WO3, 0-10 percent of Li2O, Na2O and K2O, 0-10 percent of MgO, CaO, SrO and BaO, 0-12 percent of Ta2O5 and 0-1 percent of Sb2O3. Compared with the prior art, the high-refractive-index and low-dispersion optical glass has the beneficial effects of higher internal color penetration degree, small specific weight, low smelting process temperature, smaller adding amounts of Ta2O5 and Gd2O3 and lowered cost.

The invention discloses a non-ferrous metal isothermal smelting furnace. The isothermal smelting furnace comprises a base, wherein a furnace body is arranged on the upper surface of one side of the base, a purification mechanism is fixedly connected to the upper surface of one side of the furnace body, a waste heat utilization mechanism is arranged on the upper surface of the other side of the base, a stirring mechanism is embedded in the middle of the upper surface of the furnace body, and a door handle is fixedly connected to a door of the furnace body. The invention relates to the technicalfield of smelting furnaces. According to the non-ferrous metal isothermal smelting furnace, by arranging the purification mechanism, when non-ferrous metal is machined, a filter screen and an activated carbon adsorption net in a purification box can play a role in purifying smoke, in the purification process, a rotating motor is powered on to drive discs on a second rotating shaft to rotate, circular racks on the discs can drive gear discs to rotate, then under the elasticity of springs, adjusting rods on the gear discs can enable the filter screen and the activated carbon adsorption net to shake off continuously so as to shake off the dust adhering to the surface of the filter screen and the surface of the activated carbon adsorption net.

An alkali-resistant heat-resistant glass fiber is provided. The glass fiber is characterized by comprising, by mass, 48-65 parts of SiO2, 22-30 parts of Al2O3, 23-35 parts of CaO, 3.5-6 parts of CaF2, 2.5-6.8 parts of CaWO4, 0.5-3.5 parts of TiO2, 0.2-1.7 parts of MgO, and 1-5.5 parts of FeCr2O4. The glass fiber has a flat and smooth appearance, even color and high mechanical strength. A preparing process is simple. The glass fiber prepared by a corporation has good alkali resistance, and can be widely applied in the fields of precision meter thermal protection member manufacturing, ablative material manufacturing, heat insulation material manufacturing, and the like.

Provided is a laser welded body which can be manufactured without undergoing complicated steps and maintain the characteristics of a resin contained in a resin member, which exhibits high welding strength even when scanned with a laser beam at a high speed, and which can be manufactured at high production efficiency.

The laser welded body 10 comprises a first resin member 1 which is a laser-irradiated subject which contains a thermoplastic resin and nigrosine sulfate and has an absorbance a₁ of 0.09 to 0.9; and a second resin member 2 which contains a thermoplastic resin as the same kind as or different kind from the thermoplastic resin and a laser beam absorbent, and has an absorbance a₂ of 3.0 to 15, wherein the first resin member 1 and the second resin member 2 are laser-welded at a part at which the both resin members are overlapped and/or butted.

The invention relates to a platinum device for optical glass feed preparation and belongs to the technical field of a feed preparation furnace for continuous smelting in a tank furnace. The platinum device mainly solves the problems that a conventional single crucible generates optical property fluctuation, influences uniformity and has limited smelting capacity. The platinum device is mainly characterized in that the crucible is a boot-shaped crucible; a left division plate and a right division plate are arranged at the inner bottom of the crucible at intervals and are used for dividing the inner bottom of the crucible into a material melting chamber, a homogenization chamber and a discharging chamber which are communicated; a discharging pipe is arranged at the bottom of the discharging chamber; a feeding pipe is arranged on the upper port of the material melting chamber of the crucible, and the port of the feeding pipe is higher than the upper flat surface of the crucible; and a breather pipe, a middle division plate and an air-bleed hole are arranged on the crucible above the homogenization chamber. The platinum device has the characteristics that the continuous smelting process can be realized, the glass smelting capacity and efficiency under the same volume can be effectively improved, the product is uniform, and the yield is high; and the platinum device is used for a continuous platinum smelting device for optical glass feed preparation.

The invention discloses plastic material melting equipment. The plastic material melting equipment comprises a worktable, a mounting port, a heating box, a material box, a frame, a stirring shaft, stirring blades, a mounting groove, an electric heating wire, a fire spraying gun, a discharge pipe, a motor, a driving gear, a driven gear, a belt wheel, a belt groove and support legs; the mounting port is formed in the worktable; the heating box is fixedly arranged in the mounting port; the material box is rotationally arranged in the heating box through a bearing; the frame is fixedly arranged atthe upper art of the worktable; the stirring shaft is vertically arranged in the material box; the upper end of the stirring shaft is rotationally connected with the frame through a bearing; the stirring blades are integrally arranged at the external of the part, positioned in the material box, of the stirring shaft; the mounting groove is axially formed in the top of the stirring shaft; and theelectric heating wire is arranged in the mounting groove. Compared with the prior art, the plastic material melting equipment can efficiently and quickly melt plastic materials, improves the melting efficiency and effect, and achieves more convenience for plastic processing.

A snow and ice melting device has a frame that uses a trailer hitch to connect to a propane truck. The frame also holds a plurality of flame nozzles that directs heat down towards a snow and/or ice covered surface. In one embodiment, at least one propane tank is provided that allows the device to be hooked up to any vehicle rather than a propane truck such as a pickup truck, or small tractor. In one embodiment, a front mounted snow and ice melting device is also attached to the front of the vehicle to further enhance the snow and melting effect. In another embodiment, the snow and ice melting device has a frame that holds a propane tank. The frame has a handle and wheels to allow the user to maneuver the device to melt ice and snow. A riding embodiment is also shown.