238results about How to "Increase melting rate" patented technology

The invention provides a high-carbon high-chromium high-niobium cast iron self-protection flux-cored wire. The flux-cored wire has a steel belt as an outer skin. The flux core comprises the following components in weight percentage: 10 to 30 percent of ferroniobium, 20 to 30 percent of high carbon ferrochrome, 0.1 to 3 percent of V, 0.2 to 3 percent of W, 0.6 to 0.8 percent of ferromanganese, 0.2 to 0.8 percent of 75 ferrosilicon, 20 to 30 percent of chromium carbide, 5 to 12 percent of graphite, 1 to 10 percent of aluminum-magnesium alloy, 1 to 5 percent of silicon carbide and 1 to 3 percent of ferroboron; and the percentage of a counter weight is between 46 and 54 percent. The high-carbon high-chromium high-niobium cast iron self-protection flux-cored wire has the advantages of high hardness, good wear resistance, good oxidation resistance and strong shock resistance, and is widely applied to grinding rolls and grinding disks of coal grinding machines in thermal power plants and cement plants, material charging equipment in blast furnaces(material charging slots, receiving cones, material storage areas and sieve plates), slag vertical mills, hammer heads and rollers of crushers and sintering equipment workpieces in steel plants.

The present invention relates to a pellet type SBS-asphalt master batch modifier composition comprising styrene-butadiene-styrene (SBS) block copolymer and asphalt, and modified asphalt prepared by melting and mixing the pellet type SBS-asphalt master batch modifier composition with asphalt. The modified asphalt prepared thereof has advantages that deterioration of physical properties and thermal oxidation can be prevented while productivity can be improved due to reduced melting time of modifier.

The invention relates to a green environment-friendly snow-melting liquid and a preparation method thereof. The liquid contains the following components: 40-60 wt% of a soluble acetate; 10-20 wt% of a soluble formate; 2-5 wt% of a soluble carbonate; 1-5 wt% of a polyol; 1-5 wt% of a viscosity modifier; and 20-40 wt% of water. The green environment-friendly snow-melting liquid provided in the invention is free of chloride ions, has a fast snow-melting rate, has no corrosion on metal materials such as steel bars, and has no pollution on soil and water bodies, thus being green and environment-friendly. The snow-melting liquid is convenient for storage and transportation, and has wide application. Compared with most of existing solid snow-melting materials, the snow-melting liquid has the characteristics of fully mechanized spreading way, uniform spreading, labor cost reduction, and spreading time reduction, etc.

Core/shell polymer is provided wherein the core comprises non-melt flowable PTFE and the shell comprises melt-fabricable perfluoropolymer, the core/shell polymer providing a thixotropic melt blend and improved physical properties as compared to the melt-fabricable perfluoropolymer by itself.

The invention provides a method and device for metal powder preparation based on a controllable magnetic levitation melting technology. The method includes the following steps: one end of a metal wire passes through an electromagnetic field at a constant speed; the metal wire is warmed and melted in the electromagnetic field and forms metal droplets continuously; the metal droplets drop into a gas atomization area continuously; and the metal droplets are impacted, scattered and cooled by high-pressure and high-speed inert gas in the gas atomization area to form the metal powder. The device includes a vacuum cavity, a pair of rollers arranged in the vacuum cavity and a quartz glass tube with two open ends. The axial directions of the two rolls are parallel, the rotation directions of the two rollers are opposite, and a gap between rotation surfaces of the two rollers is matched with the diameter of the metal wire. One end of the quartz glass tube is connected with an outlet of the metal wire, and the other end of the quartz glass tube is connected with a gas atomization nozzle and a powder collector successively. A coil is wound around the quartz glass tube. The method and device for metal powder preparation based on the controllable magnetic levitation melting technology can stably control the flow rate of melting metal liquid and can satisfy industrial production requirements.

The invention discloses an electroslag remelting method for high-purity austenite nitrogenous stainless steel for nuclear power. The method comprises the following steps: (1) selecting a cylindrical metal electrode for electroslag; (2) treating the metal electrode by adopting a machining method; (3) carrying out welding treatment and heating treatment on the metal electrode and a stainless-steel false electrode for the electroslag; (4) carrying out slag melting treatment by selecting a slag system which contains 50%-60% (by weight) of CaF2, 15%-25% (by weight) of Al2O3, 10%-20% (by weight) of CaO, 5%-10% (by weight) of MgO and 3%-6% (by weight) of SiO2; (6) carrying out feeding treatment; (7) carrying out die cooling. According to the austenite nitrogenous stainless steel prepared by the method, the forming of a steel ingot surface is good, and the inclusion content is low and can reach that the inclusion content of a coarse series of a class A is not higher than 0.5, the inclusion content of a fine series of the class A is not higher than 0.5, the inclusion content of a coarse series of a class B is not higher than 0.5, the inclusion content of a fine series of the class B is not higher than 0.5, the inclusion content of a coarse series of a class C is not higher than 0.5, the inclusion content of a fine series of the class C is not higher than 0.5, the inclusion content of a coarse series of a class D is not higher than 0.5, and the inclusion content of a fine series of the class D is not higher than 1.0.

The invention relates to a liquid-crystal glass tank furnace fluxing device and a method for solving the difficult problems that liquid-crystal glass is high in melting temperature, high in high temperature viscosity, low in melting rate and high in volatility when melting. A tank bottom between a charging opening and a bubble of a tank furnace is provided with a row of electrodes; the tank bottom in a clarification area close to a liquid flow hole is provided with a row of electrodes as well; and a pure oxygen burner jetting flame into the furnace is arranged on the tank furnace. The device aids in melting through a plurality of fluxing modes, homogenizes the temperature of molten glass, raises the internal temperature of the molten glass, speeds up convection, accelerates glass clarification process, reduces crystallization tendency, and can obtain the glass with higher quality. Therefore, the device is especially applicable to the liquid-crystal glass production harsh in requirement on glass quality.

A process for preparing and storing moist glass-making batch is disclosed, comprising incorporating a surfactant in moist batch so that when the batch is either: a) stored at a temperature below 35° C., it remains free flowing without setting, or b) pre-heated at, or above, 100° C. before supply to a glass melting furnace, it remains free flowing without setting. The moist batch includes from 2% to 10% by weight free water and from 0.0001% to 5% by weight surfactant, which is preferably a soluble soap (for example a carboxylate having from 4 to 22 carbon atoms in its chain) that is incorporated into the batch as it is mixed. The moist batch can be stored for at least 24 hours, and it can be pre-heated to at least 150° C., and remain free flowing without setting.

The invention relates to a method for smelting crude lead in an oxygen-enriched side-blowing smelting furnace, belonging to the technical field of lead smelting. The method comprises the process steps of: 1) crude lead material preparation: proportioning lead-containing materials, quartz stones and limestone flux according to silicate degree being 0.9-1.3 percent, evenly mixing and crushing the lead-containing materials and the flux to grain size being less than or equal to 40mm; 2) crude lead smelting preparation: melting partial crude lead materials to a depth of 300-400mm in the oxygen-enriched side-blowing smelting furnace; and 3) crude lead smelting: continuously feeding the crude lead materials into a hearth and then controlling smelting air-coal ratio, temperature and high-pressure oxygen-enriched air supply, wherein molten lead sinks down and automatically flows into a furnace bed for heat preservation and storage through a siphon port, the molten lead automatically flows into a casting mold to form ingots when the depth of the stored molten lead reaches an overflow port, and the accumulated floating lean slag is discharged and is introduced into the crude lead material preparation process. The method for smelting crude lead in the oxygen-enriched side-blowing smelting furnace has the advantages that the investment is small, the smelting efficiency is high, the energy consumption is low, the arrangement is facilitated, the treatment capacity is high, the method is suitable for mass production, the materials are not required to be granulated, bricked, dried and stored, and the quantity of flue dust is small.

The invention provides a wire feeding type laser material increase manufacturing method and a system applying the same, wherein a welding wire and a laser beam are arranged on the two sides of a normal line of a substrate at a certain angle; the laser beam is acted on the welding wire to generate a deep penetration small hole; the welding wire absorbs laser energy in a deep penetration mode to beheated and melted and is transited onto the surface of the substrate to form a cladding layer; and the laser beam, after penetrating through a wire, irradiates the surface of the substrate to preheatthe surface of the substrate in a thermal conductivity mode. According to the wire feeding type laser material increase manufacturing method, the formation efficiency of wire feeding type laser material increase manufacturing can be improved, and the welding wire melting rate is greatly increased by utilizing the deep penetration mode to heat and melt the welding wire; and a workpiece is heated and melted in the thermal conductivity mode, and the defects of small hole type air holes and the like can be effectively avoided from being generated.

Gas metal arc welding (GMAW) is a widely used process for joining metals. Its main advantage over its competition gas tungsten arc welding (GTAW) is its high productivity in depositing metals. However, to melt metal from the wire to deposit into the work-piece, additional heat is consumed and applied to the work-piece with an uncontrolled fixed proportion to the effective heat that melts the wire. Such additional heat is often in excess of the needed heat input for the work-piece. The side-effects include a waste of the energy, an increased distortion, and possible materials property degradation. This invention is to device a method to transfer this part of heat to melt the wire by adding two wires, which form a pair of arc spots, under a tungsten arc. It also devices a method to assure the arc between the two wires be maintained stable such that the transfer be successfully continuous. The successful continuous transfer improves the energy efficiency, eliminates the adverse effects on the distortion and materials property, and decouples the controls on mass input and heat input on the work-piece.

The invention provides a short flow manufacturing technique for the duplex smelting of a blast furnace-intermediate frequency furnace, relating to the blast furnace-intermediate frequency sensing electric stove smelting technique. The short flow manufacturing technique is characterized in that the liquid iron produced by an ironmaking blast furnace is directly added into the intermediate frequency sensing electric stove, the temperature is increased to adjust materials, and a cast piece is poured. In the material adjusting process, a liquid iron nucleating agent is added to accelerate the crystallization. The nucleating agent comprises the compositions in weight percentage: 65 to 70 percent of silicon, 0.5 to 2.5 percent of calcium, 0.0 to 6.0 percent of barium, 0.2 to 2.0 percent of aluminum, 0.05 to 0.2 percent of bismuth, and the balancing being iron. The short flow manufacturing technique has the advantages that the process of melting iron ingot for the second time is saved, the overheating efficiency of the sensing electric stove is high, the adjustment of components and the control of the temperature are convenient, the high temperature liquid iron which has good quality and meets the requirement for the cast piece is obtained; and the technique can be applied to spheroidal graphite casting to produce parts of an automobile, parts of wind power equipment, engineering plant cast pieces and other cast pieces, the product quality is improved, the energy is saved, the production efficiency and the production benefits are improved, and the environmental pollution is reduced.

The invention provides a gas-electric kiln for producing basalt continuous fiber. A cavity in a kiln body comprises a melting region, a clarification homogenizing region and a work region; two long high side walls of the melting region, two long high side walls of the clarification homogenizing region and two long high side walls of the work region are each provided with at least one electrode; all electrodes on the two long high side walls of the kiln body are distributed in a staggered mode in the length direction of the kiln body; combustors are arranged on the two long high side walls of the melting region, the two long high side walls of the clarification homogenizing region and the two long high side walls of the work region; the electrified electrodes are immersed in basalt molten liquid, and a heating mode belongs to internal heating; the combustors conduct heating above the basalt molten liquid, and a heating mode belongs to external radiation heating; the two heating modes are combined to form internal and external integrated heating, so that a thermal field in the kiln is more uniform, the melting rate of basalt stone is increased, the temperature and components of the basalt molten liquid are more uniform, the yield and quality of the basalt continuous fiber produced by the single kiln are improved, and the kiln is more beneficial to achieving large-scale industrialproduction of the basalt continuous fiber.

The invention relates to a method for preparing a medical brown bottle by using broken glass, and belongs to the technical field of production technology of glass. The method is characterized in that the brown bottle consists of the following oxide chemical components by weight percentage: 70 to 73 percent of SiO2, 1.8 to 2.2 percent of Al2O3, 0.2 to 0.4 percent of Fe2O3, 7.8 to 8.1 percent of CaO, 2.0 to 2.5 percent of MgO, 14 to 15 percent of R2O, and 0.25 to 0.33 percent of BaO, wherein R is Na or K; and the raw materials contain the broken glass accounting for 10 to 20 percent of the total weight of the raw materials. Through limiting granularity and mixing evenness of the broken glass, the method solves the problem of homogenization of the raw materials, and improves quality of the glass to facilitate medicine packing.

The present invention discloses a lithium ion battery module thermal management system based on a phase change material- fin composite structure, pertaining to the field of lithium ion battery thermalmanagement systems. The system comprises an aluminum battery box, and a plurality of square ferric phosphate lithium battery modules and heat-dissipation structures are fixed in the aluminum batterybox, wherein the square ferric phosphate lithium battery modules and heat-dissipation structures are alternately arranged. The upper surface of each ferric phosphate lithium battery module is fixed with ferric phosphate lithium battery tabs. Each heat-dissipation structure consists of a pair of substrates and a plurality of heat-dissipation fins, wherein the heat-dissipation fins are arranged between a pair of substrates, and each two adjacent heat-dissipation fins are filled with a phase change material. According to the thermal management system, the disadvantages of the conventional thermalmanagement system, such as small heat transfer area, low phase change material thermal conductivity and low heat transfer efficiency between the phase change materials and the batteries, are overcome; and the heat conduction and the thermal convection of the phase change materials are improved via the fin structures, so that the battery heating rate is lowered, the battery module temperature gradient is reduced, and the safety, the working performance and the durability of the batteries are improved.

The invention discloses a preparation method of an anti-freezing asphalt material. The preparation method comprises the following steps of: heating 20-50 parts by weight of raw material asphalt in a temperature control furnace till the raw material asphalt is molten, then, adding 5-50 parts by weight of an anti-freezing filler and 5-50 parts by weight of quartz powder into the molten asphalt, and uniformly stirring; and pouring a sticky mixture into a pre-heated aluminium-made mould to naturally level while the sticky mixture is hot, cooling to room temperature, and polishing the surface of a sample by using metallographical abrasive paper with certain meshes so as to obtain the anti-freezing asphalt material. The preparation method of the anti-freezing asphalt material disclosed by the invention is simple; the use amount of sodium chloride in the traditional salt deicing method can be greatly reduced; the anti-freezing asphalt material has the anti-freezing effect on water droplets with super-cooled surfaces in the range of 0-8 DEG C; even frozen at a lower temperature (such as -15 DEG C), the ice melting rate is rapider than that of the common surface; the asphalt material disclosed by the invention can be used for paving highway pavement and is capable of preventing the highway pavement from freezing in the range of 0-8 DEG C; and therefore, traffic accidents are reduced.

The invention relates to a porcelain white glass and a production technique thereof. The production technique comprises the following steps: (1) preparation of mixture; (2) melting: melting the mixture and glass cullet in a kiln; (3) forming: forming in a glass forming device; and (4) annealing: annealing in an annealing kiln. The porcelain white glass is prepared from the following raw materials in percentage by weight: 60-90% of mixture and 10-40% of glass cullet. The mixture comprises the following components in parts by weight: 50-60 parts of quartz sand, 13.5-16 parts of soda ash, 10-12 parts of aluminum hydroxide, 9-11 parts of sodium fluosilicate, 5-7 parts of fluorite, 0-1.5 parts of barium sulfate, 0.5-2 parts of sodium nitrate, 0-3 parts of calcite and 0.3-0.7 part of composite clarifier. The porcelain white glass with high-whiteness porcelain appearance effect can be obtained by finely regulating and controlling the raw material formula and technological parameters.

The invention belongs to the technical field of welding and provides a novel twin-wire bypass coupled arc efficient metal-inert gas (MIG) welding system. By the adoption of the twin-wire bypass coupled arc efficient MIG welding system, the problems that an existing twin-wire bypass coupled arc efficient MIG welding system is complex in structure and high in cost are solved. The twin-wire bypass coupled arc efficient MIG welding system comprises a welding power source and a dynamic voltage adjusting device. The dynamic voltage adjusting device comprises an invert unit, a filtering unit, a voltage transformation unit and a direct-current output unit. The invert unit is used for inverting direct currents output by the positive electrode of the welding power source into alternating currents. The filtering unit is used for filtering current higher harmonics output by the invert unit in the inverting process. The voltage transformation unit is used for converting the output voltage of the invert unit into the voltage equivalent to the compensation amount of the bypass voltage. The direct-current output unit is used for rectifying the alternating currents output by the voltage transformation unit into the direct currents and outputting the direct currents. Due to the fact that the welding system comprises the welding power source, the system structure is simplified, and the welding cost is reduced.