94results about How to "Melted completely" patented technology

Spherical particles of a rare earth (inclusive of yttrium)-containing compound and having a breaking strength of 10-300 MPa and an average particle diameter of 10-80 μm are suitable for plasma spraying.

A method for using substantial quantities of silicon powders as charge and processing it to produce a high quality silicon ingots suitable for photovoltaic use is disclosed. In a fused silica crucible, silicon feedstock containing more than about 5% by weight silicon powder is charged. The crucible with the charged silicon feedstock is placed into a furnace chamber and a vacuum is drawn to remove air. The vacuum is applied slowly. Then, the furnace chamber is backfilled with argon gas and heated to form molten silicon. Afterward, the molten silicon is solidified and annealed to form a multicrystalline silicon ingot.

The invention provides a base plate structure for an outdoor unit of an air conditioner, the outdoor unit of the air conditioner, the air conditioner and a defrosting control method for the air conditioner. The base plate structure for the outdoor unit of the air conditioner comprises an outdoor unit base plate, a base plate electric heating element and a drainage part, wherein a compressor fixing support is arranged on the outdoor unit base plate, and a condenser is installed on the outdoor unit base plate; the base plate electric heating element is arranged at the bottom of the condenser and located above the outdoor unit base plate; and the drainage part is arranged on the outdoor unit base plate and comprises at least one main drainage port, and the main drainage port is located below the base plate electric heating element. By adopting the base plate structure, when the air conditioner is heated for defrosting at a lower outdoor temperature, frost on the condenser and the outdoor unit base plate can be quickly and thoroughly thawed, and the thawed water quickly and smoothly flows out of the main drainage port, so the frost is thawed cleanly and thoroughly, the temperature of an indoor air port is improved, a good heating effect is guaranteed, and the market competitiveness of the product is improved.

A process for forming a coating on a surface of a substrate, so that heating of the coating material is selective and sufficient to cause at least partial melting of the coating material and permit bonding to the substrate without excessively heating the substrate so as not to significantly degrade its properties. The process generally entails forming a brazing paste containing powder particles dispersed in a binder. The particles are formed of a composition that is susceptible to microwave radiation. The brazing paste is then applied to the surface of the substrate and subjected to microwave radiation so that the particles couple with the microwave radiation and are sufficiently heated to burn off the binder and then at least partially melt to form an at least partially molten layer on the substrate. The microwave radiation is then interrupted to allow the at least partially molten layer to cool, solidify, and form the coating.

A process for forming a coating on a surface of a substrate, in which the heating source for the coating process is microwave radiation so that heating of the coating material is selective and sufficient to melt and bond the coating material to the substrate without excessively heating the substrate. The process entails forming a coating material containing powder particles that are sufficiently small to be highly susceptible to microwave radiation. The coating material is applied to a surface of the substrate and subjected to microwave radiation so that the powder particles within the coating material couple with the microwave radiation and sufficiently melt to form a coating on the substrate surface. The microwave radiation is then interrupted to allow the coating to cool, solidify, and mechanically bond to the substrate.

The invention discloses fusing equipment for asphalt processing. The fusing equipment comprises a crushing cavity, a transmission cavity and a fusing cavity. The transmission cavity is formed in the lower end of the crushing cavity, and the crushing cavity and the transmission cavity are separated through a sieve plate. The transmission cavity communicates with the upper end of the fusing cavity through a material guiding pipe, and the outer side of the fusing cavity is wrapped with a heating cavity. A feeding hopper is arranged at the upper end of the crushing cavity, and a rotary motor is arranged on the right side of the feeding hopper. The output end of the rotary motor is fixedly connected with a first rotary shaft, and the first rotary shaft penetrates through the upper end of the crushing cavity to be rotatably connected with the crushing cavity. A cutting knife is fixedly mounted on the position, located on the inner side of the crushing cavity, of the first rotary shaft. The sieve plate is slidably arranged at the lower end of the crushing cavity, and the lower end of the sieve plate is provided with the transmission cavity. According to the fusing equipment, design is novel, operation is easy, through an arranged filter plate, separation discharging of non-fused impurities and an asphalt solution can be achieved, the asphalt fusing effect and quality are improved, theworking efficiency is high, and the automation degree is high.

The invention discloses a method for manufacturing a solar double-glass assembly. The method includes the following steps that (1) a PVB adhesive film, a solar battery string, a PVB adhesive film and surface layer tempered glass are sequentially laid on bottom layer tempered glass, so that the solar double-glass assembly is formed; (2) whether hidden cracking pieces exist in solar battery pieces of the double-glass assembly in the first step is checked, and the hidden cracking pieces are removed; (3) the double-glass assembly is placed in a laminating machine under the -1 barometric pressure, the process is kept for 30-40 minutes, then an upper chamber of the laminating machine is placed at the pressure of -0.5 MPA, a lower chamber is placed at the pressure of -1 MPA, the process is kept for 20-30 minutes, afterwards, the temperature rises to be 140+/-5 DEG C, and at the pressure of -0.5 MPA to -0.6 MPA, the process is kept for 20-30 minutes; (4) whether hidden cracking pieces exist in the solar battery pieces of the laminated double-glass assembly is checked, and the hidden cracking pieces are removed; (5) the double-glass assembly is fixed, the double-glass assembly is placed in an autoclave, and after a dehumidifier is used for dehumidifying, under the conditions of 20-150 DEG C and 0-1.3 MPA, the process is kept for 2-4 hours.

The invention discloses a smelting method of a chromium-molybdenum-copper-nickel-tin-antimony low-alloy wear-resistant cast iron, which comprises the following steps: raw material weighing: preparing and weighing raw materials and alloys according to the prescribed material specifications and weight proportion; smelting: sequentially adding the materials according to the technical charging sequence, and melting, wherein refractory molybdenum iron, chromium iron and pure nickel are added in the middle of the pig iron batch charging process, and scrap steel is added; component adjustment: adding silicon iron and manganese iron to adjust to acceptable components, heating, and adding a copper block which can be easily damaged by fire; and late inoculation in casting ladle: before tapping and after preheating the casting ladle, adding a tin block (accounting for 0.05% of the raw materials) and an antimony block (accounting for 0.01% of the raw materials) to the bottom of the ladle, and adding late inoculation silicon granules into the molten iron in the ladle in the casting process. The method solves the problem that the high-melting alloy added after all the iron liquid is completely molten is refractory, is capable of shortening the melting time and enhancing the smelting efficiency, promotes the formation of the fine lamellar pearlite, and ensures the element components, mechanical properties and metallurgical structure of the casting to simultaneously satisfy the requirements.

The invention relates to a smelting distributing method utilizing nickel beads as a main raw material for a vacuum induction furnace. The smelting distributing method comprises the following steps: (I) cleaning a smelting crucible of the vacuum induction furnace; (II) starting loading after the crucible is inclined by 10-15 degrees; (III) putting partial nickel beads into the bottom of the crucible until the bottom of the crucible is full; (IV) flatly paving 50%+/-10% of Cr into the crucible; (V) adding the mixture of Ni and residual Cr into the crucible, wherein the area of Cr is 10%-25% of the flat paving area; rotating until the angle of the crucible is vertical to the horizontal direction; adding Ni beads, wherein the amount of the added Ni beads is more than 60% of the total added amount of Ni beads in the smelting process; and adding the residual Ni beads as a feed supplement in batches in the last stage of smelting; (VI)during distributing, tightly distributing materials at the bottom of crucible, and sparsely distributing materials at the middle upper part of the crucible; and (VII) adding easily-burnt elements including Al, Ti, B, Mg and Zr in the last stage of refining and an alloying stage. According to the smelting distributing method, an electric discharge phenomenon which appears on the surfaces of the Ni beads in the presence of induced current during smelting is avoided, and the phenomenon that the adjacent nickel beads are adhered after discharging is avoided.

The invention belongs to the technical field of biodegradable materials, and particularly relates to a PBAT composite modified biodegradable material and a preparation method thereof. The PBAT composite modified biodegradable material is prepared from the following components in parts by weight: 50-70 parts of PBAT, 20-30 parts of wheat straw, 4-10 parts of PLA, 2-6 parts of a filling agent, 0.2-0.6 part of a plasticizer, 2-8 parts of a lubricating agent, 0.1-0.5 part of a chain extender and 0.2-2.0 parts of a heat stabilizer. The PBAT composite modified biodegradable material provided by the invention has better ductility and elongation at break, strong flame retardant property and low cost, and is beneficial to market promotion; and the invention also provides a preparation method thereof.

The invention belongs to the field of polyvinyl chloride resin product recovery equipment, particularly relates to an efficient pelletizer for polyvinyl chloride resin recovery and aims at solving thetechnical problem of providing the efficient pelletizer for polyvinyl chloride resin recovery, capable of performing filtering treatment on wastes in the cooling and shaping process, automatically performing bagging after formation and pelleting of the polyvinyl chloride resin and thoroughly melting the resin. The efficient pelletizer for polyvinyl chloride resin recovery comprises a first bracket, a collection funnel, a pelleting tank, a cooling tank, a melting cylinder, a first motor and a fixed spine; the pelleting tank is fixedly connected to the top of the first bracket; and the collection funnel is fixedly connected to the bottom of the first bracket. The efficient pelletizer for polyvinyl chloride resin recovery achieves the effects that the filtering treatment can be performed onthe wastes in the cooling and shaping process, bagging can be automatically performed after formation and pelleting of the polyvinyl chloride resin, the resin is thoroughly molten, and the pelleting efficiency is high.

The invention discloses an asphalt melting device for highway engineering, and belongs to the field of highway engineering. The asphalt melting device for highway engineering includes a crushing mechanism, a melting mechanism, a filtering mechanism and an insulation mechanism, a fixing clamping piece is fixedly connected to the side end of the crushing mechanism, and the crushing mechanism is connected to the upper end of the melting mechanism through the fixing clamping piece in a clamped mode; and the outer end of the melting mechanism is fixedly connected with an auxiliary motor unit, the auxiliary motor unit includes two pairs of auxiliary motors, a through hole matched with the auxiliary motor unit is formed in the side end of the melting mechanism, the power output ends of the auxiliary motors penetrate through the through hole and are fixedly connected with rotary heating spike assemblies, the two pairs of rotary heating spike assemblies are arranged in the melting area, and opposite rotation of the two adjacent pairs of rotary heating spike assemblies is used for making asphalt blocks mix evenly. On the one hand, the multiple crushing effect is further achieved, on the other hand, the melting time of the asphalt blocks in melting mechanism can be prolonged, and compared with original melting devices, the melting rate can be increased.

The invention discloses a low resistivity niobium-doped niobium oxide sputtering rotation target material and a preparation method thereof. The target material comprises 97.5-99.5wt% of NbOx, 0.4-2.4wt% of Nb, and the balance of impurities, wherein x is greater than 0.05 and lower than 2.5, and preferably greater than 2 and lower than 2.5. The preparation method comprises the following steps: producing a stainless steel back tube; and mixing powders, drying, carrying out vacuum plasma spraying, and machining. The target material obtained by adopting the above formula and introducing a new production technology has the advantages of low resistivity, high transmittance and greatly improved performances. The transmittance is mainly related with the thickness and the composition structure of a film designed by a downstream film plating manufacturer, and the transmittance of the thickness with same thickness in the film plating process is high if the compactness of the target material is high. The target material can be widely used in fields of touch screens, optical glass plating films, TFT and the like, and greatly promotes the process of the industry.

The invention relates to a formula of a straw-containing wood-plastic outdoor floor and a production method of the straw-containing wood-plastic outdoor floor.The straw-containing wood-plastic outdoor floor comprises, by weight, 100 parts of recycled polypropylene plastics, 150-200 parts of wheat straw wood fiber, 1-3 parts of maleic anhydride grafted polypropylene, 2-5 parts of activated calcium carbonate, 1-3 parts of vinyl amine distearate, 2-8 parts of flake graphite, 1-8 parts of nano-zinc oxide, 10-15 parts of glass fiber, 2-10 parts of ultraviolet absorber UV-327, 5-8 parts of light stabilizer GW-944, 3-12 parts of antioxidant 2,6-tert-butyl-4-methylphenol and 3-6 parts of iron oxide red.The production method includes subjecting wheat straws to airing, impurity removing, pulverizing, screening and drying, subjecting the polypropylene plastics to washing, airing and cutting, drying the auxiliaries, and performing melting, hot pressing and cooling so as to obtain the outdoor floor.The straw-containing wood-plastic outdoor floor is high in durability and ageing resistance and free of natural defects of wood and can be recycled.

A control method for the 3D printing wire forming quality comprises the steps that extrusion materials with high melting point are put into a tray, then the tray is put into a drying box to be heatedand dried, and the dried extrusion materials with high melting point are put into a vacuum box; a wire is extruded out through a parallel double- screw extrusion machine; extrusion process parametersare adjusted, and the stable, controlled and continuous wire is extruded out; and finally, the extruded wire is printed through 3D printing equipment, a printing process is adjusted, and a needed model is printed and finally applied. The control method achieves qualified 3D printing of the materials with high melting point, greatly improves the preparation efficiency and reduces the preparation cost.

The invention discloses a preparation method of a Ni/NiO/C composite material and a supercapacitor. The preparation method of the Ni/NiO/C composite material comprises the following steps: preparing biomass powder from a biomass raw material; immersing the biomass powder into a nickel ion solution to enable the biomass powder to adsorb nickel ions, and then drying the biomass powder which adsorbsthe nickel ions; uniformly mixing the dried biomass powder with inorganic salt to obtain a mixture; heating the mixture to T1 in an N2 atmosphere to melt inorganic salt in the mixture, keeping the temperature for 1-2 hours, then heating to 500-650 DEG C, keeping the temperature for 5-30 minutes, and cooling to room temperature to obtain a product A; washing the product A with water at 60-100 DEG C, and then pickling, washing and drying to obtain the Ni/NiO/C composite material. The Ni/NiO/C composite material prepared by the method is good in conductivity, the Ni/NiO/C composite material is used as an electrode material of the supercapacitor, the problem of stability caused by volume change in the NiO charging and discharging process is relieved, the electrochemical performance of the supercapacitor is improved, the cycling stability is relatively good, and the cycle life is long.