41results about How to "Extended melting time" patented technology

An amorphous silicon layer and at least a heat-retaining layer are formed on a substrate in turn. Wherein, the heat-retaining layer is controlled to have an anti-reflective thickness for reducing the threshold laser energy to effect the melting of the amorphous silicon layer. Then, a laser irradiation process is performed to transform the amorphous silicon layer into a polycrystalline silicon layer. During the laser irratiation process, a portion of the laser energy transmits the heat-retaining layer to effect the melting of the amorphous silicon layer, and another portion of the laser energy is absorbed by the heat-retaining layer.

The invention relates to a pure purification smelting method of an alloy, in particular to a pure purification smelting method for a nickel-based high-temperature alloy master alloy, and belongs to the technical field of metal smelting. According to the method, pure purification smelting of a master alloy is completed through material distributing and alloy melting, primary refining, alloying andsecondary refining, microalloying controlling and casting. The method has the advantages that the purity of vacuum melting can be effectively improved, the element segregation can be improved, and a nickel-based high-temperature alloy prepared by the method has the advantages that the purity is high, the segregation is low, the quality is remarkably higher than that of an alloy prepared through the existing technology and method, the quality of the nickel-based high-temperature alloy is improved, and the application field is expanded; nickel-based high-temperature alloys with different gradesand marks smelted by adopting the method has good effects; vacuum induction furnaces with the furnace types of 250 kg-grade and 1.5 ton-grade are adopted; and compared with an alloy before smelting and prepared through other technologies and methods, the alloy is remarkably improved in purity and uniformity.

A process for preparing the electrocast zirconium corundum No.33, 36 and 41 includes such steps as pretreating the leftover of cast zirconium corundum, zirconium oxide and corundum, proportional mixing, smelting by blowing oxygen from furnace bottom for removing impurities, casting and holding the temp for a certain time.

The invention discloses an automatic screw rod cleaning device, which comprises a cleaning frame, a heating ring and a rotating support frame, wherein the cleaning frame is used for installing and clamping a screw rod, and the heating ring is arranged on the cleaning frame through a rotating mechanism, when the screw rod is clamped and installed onto the cleaning frame, the heating ring is penetrated by the screw rod, and in addition, the heating ring covers the screw thread part of the whole screw rod. The heating ring in the automatic screw rod cleaning device covers the screw thread part of the whole screw rod, the circumference surface of the whole screw rod can be heated, the occurrence of a hardness reduction condition caused by local heating of the screw rod can be avoided, meanwhile, the surface of the screw rod can be fast heated, the melting time of attachment is shortened, and the work efficiency is greatly improved.

The invention belongs to the field of casting, and relates to pure oxygen gas burners, in particular to a pure oxygen gas burner for a rotary iron-melting furnace. The front end of the burner is provided with a plurality of gas spray orifices and oxygen spray orifices which are small in equivalent diameter. Meanwhile, line clusters formed by the center lines of the gas spray orifices and line clusters formed by the center lines of the oxygen spray orifices are made to intersect in space in front of the burner. By reducing the flame length, the power density of the pure oxygen gas rotary iron-melting furnace is increased, the melting efficiency of the rotary iron-melting furnace is improved, the melting time of the rotary iron-melting furnace is shortened, fuel is saved, and the production cost is reduced. A water inlet spiral flow channel blade is arranged in a water inlet cavity and a spiral flow channel is formed in a cooling water flow channel of the burner, so that the flow speed of cooling water is greatly increased, the convection heat exchange efficiency between the cooling water and the burner is improved, cooling of the cooling water to the burner is enhanced, and thermal damage to the burner caused by high-temperature flames after the flames of the burner are shortened is prevented.

The invention provides pug of firewood-fired Nixing pottery and a process for manufacturing the Nixing pottery from the pug. The pug is prepared from, by weight, 5.5-6.8 parts of eastern mud, 1.3-2.0 parts of western mud, 1-1.5 parts of wood ash and 2-2.5 parts of kaolin. The process of for manufacturing the Nixing pottery from the pug comprises the steps of blank preparation, blank body forming, blank body drying and blank body firing; according to blank preparation, the eastern mud, the western mud, the wood ash and the kaolin with the formula amount are prepared into a blank through a conventional process; according to blank body burning, the blank body is fed into a wood-fired kiln, woody plants are adopted as fuel, the firing temperature ranges from 1,160 DEG C tot 1,180 DEG C, and after firing is completed, cooling and drawing are carried out. The kaolin and the wood ash are added into conventional Nixing pottery pug, so that the firing temperature range of the Nixing pottery is greatly widened; the melting temperature of ash of fuel wood can be reduced, the melting time of the ash can be shortened, and the fuel wood cost is greatly reduced.

The invention provides a royal jelly and beeswax lozenge and a preparation method thereof, and relates to health care food. The problems of acor mouthfeel, easy melting and poor health care effect of the existing royal jelly lozenge are solved. The royal jelly and beeswax lozenge is prepared from the following ingredients including 81.7 to 87.3 percent of royal jelly freeze dry powder, 5.9 to 8.7 percent of beeswax powder, 3 to 6 percent of bee pollen, 2 to 4 percent of fruit powder, 0.5 to 1.3 percent of xylitol and 0.1 to 0.3 percent of citric acid. The preparation method comprises the preparation steps of (1) fast freezing royal jelly; performing crushing to obtain the royal jelly freeze dry powder; freezing the beeswax; performing crushing to obtain the beeswax powder; (2) uniformly mixing the royal jelly freeze dry powder, the beeswax powder, the bee pollen and the fruit powder; adding the xylitol and the citric acid; uniformly stirring the mixture by absolute ethyl alcohol to obtain a whole particle; (3) pressing the whole particle into a tablet; performing polishing to obtain a finished product. The royal jelly freeze dry powder is contained in the ingredients; the bee pollen and the fruit powder are also added; meanwhile, the beeswax is added, so that the acor mouthfeel of the royal jelly is improved; the melting time in the mouth is prolonged; the absorption by a human body is easy; the nutrition and health care effects are improved.

The invention discloses lemon 18K gold and a manufacturing method thereof. The lemon 18K gold contains 75% of gold in mass percentage and 25% of repaired mouth in mass percentage; the repaired mouth comprises silver, copper, zinc and iridium powder; the ratio of the silver and the zinc to the copper in mass percentage is 1.2-1.3; the mass percentage of the zinc is 2.5-3.5%; and the mass percentage of the iridium powder is 0.004-0.012%. The manufacturing method comprises the steps of burdening, melting, refining and casting; in the refining process, mechanical disturbance is added; and a mouldis cast after being heated to 400-600DEG C. Through the invention, the problem that the traditional lemon 18K gold is bad in comprehensive mechanical property is solved.

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.

A method of manufacturing a polysilicon layer is provided. Firstly, a substrate is provided. Next, an amorphous silicon having a first region and a second region is formed on the substrate. After that, the amorphous silicon layer in the first region is completely melted and the amorphous silicon layer in the second region is preheated. The completely melted amorphous silicon layer in the first region is crystallized to form a first polysilicon layer. Next, the preheated amorphous silicon layer in the second region is completely melted. The completely melted amorphous silicon layer in the second region is crystallized to form a second polysilicon layer.

The method includes following steps: firstly in base board, amorphous silicon has first amorphous silicon area and second amorphous silicon area; next a photomask is provided, the photomask consists of partly photo zone and photo zone; the partly photo zone and photo zone each relates to second amorphous silicon area and first amorphous silicon area. Laser is used to illuminate the photomask so that the first amorphous silicon area is entirely melted and the second amorphous is preheated; the melted first amorphous silicon area and the second preheated amorphous silicon are crystallized to form first polycrystalline silicon layer; the photomask and base board are moved to make the photo zone to correspond to the preheated second amorphous silicon area; laser is used to illuminate the photomask for making the preheated second amorphous silicon area to entirely melt so that the melted second amorphous silicon area will crystallize second polycrystalline silicon layer.

The invention belongs to the technical field of photovoltaic glass processing, particularly relates to a photovoltaic glass production process, and aims to solve the problems of poor continuity during mixing, melting and calendaring treatment of photovoltaic glass during processing and poor thickness uniformity during calendaring treatment of an original sheet, and the following scheme is provided: the photovoltaic glass production process comprises the following steps: S1, feeding; s2, mixing and crushing; s3, melting is conducted; s4, float forming; s5, calendaring and annealing; s6, coating and tempering; s7, film pasting and packaging; according to the invention, intermittent feeding of raw materials is formed through the intermittent feeding mechanism, crushing treatment is carried out on the raw materials in cooperation with the crushing roller, and a melt subjected to melting treatment is carried out by the carrying plate, conveyed by the conveying roller, guided and calendered by the guide plate and calendered and conveyed by the calendering roller, so that the forming effect of the melt in the metal bath box is effectively improved; and the thickness of the melt during forming is greatly reduced, so that the calender can conveniently carry out uniform calendering treatment on the formed melt, and the calendering uniformity of the melt is greatly improved.

The invention discloses a core-spun yarn product for conducting bulk material wire feeding treatment on molten steel and a processing method of the core-spun yarn, and belongs to the technical field of metallurgy. According to the core-spun yarn product and the processing method thereof, when the product is processed, a tubular container steel shell which is subjected to loading and sealing of bulk inner core materials is locally and continuously extruded in the axial direction, and the sunken steel shell cross section formed in the extruded part is subjected to diameter reducing rounding, so that the cross section of the product is reduced due to the fact that the product is provided with a local notch, the internal material filling compactness is high, the contact density with the shell is large, and the internal gas content is low. By adopting the technical scheme of the core-spun yarn product, the sealing time of the shell can be prolonged, rapid evaporation of gas is effectively inhibited, and evaporation and oxidation loss of magnesium or/and calcium are reduced, so that the yield of alloying or inclusion modification treatment elements in steel when a wire feeding process is adopted is improved and stabilized, meanwhile, the pollution to the molten steel and the harm to the field environment during wire feeding (especially magnesium or/and calcium treatment) are reduced.

The invention relates to the technical field of printing, and particularly discloses a printing material cementing device. The printing material cementing device comprises a cementing box, wherein a feeding hopper is arranged at the top of the cementing box, a heating plate is arranged in the middle of the cementing box, a plurality of first heating holes are formed in the heating plate, the firstheating holes communicate with the side wall of the cementing box, a discharging unit is arranged in the cementing box, the discharging unit comprises a glue discharging cylinder, a spiral shaft is rotationally connected to the cementing box, one end of the spiral shaft penetrates through the cementing box and is connected with a driving unit, a middle tube is arranged on the heating plate, a screen cylinder is rotationally connected in a glue discharging cylinder, a plurality of screen holes are formed in the screen cylinder, the sizes of the apertures of the screen holes are different, thescreen holes with different apertures are distributed on the screen cylinder in a staggered mode, soft brushes are uniformly distributed on the inner wall of the glue discharging cylinder, a transmission unit is arranged on the spiral shaft, and a guide pipe communicating with the glue discharging cylinder is arranged on the cementing box. By the adoption of the technical scheme, the problem thatafter hot melt adhesive remained in a conveyor is solidified in the prior art, cannot be fully melted, and is fed to a conduit, the conduit is blocked is solved.

The invention discloses an anti-freezing device and method for an air energy water heater, and relates to the technical field of water heater freezing prevention. The anti-freezing device and method aim at solving the problem that the anti-freezing effect is poor. The anti-freezing device specifically comprises an evaporation coil pipe, wherein an installing plate is fixed to the outer wall of oneside of the evaporation coil pipe through bolts, and a temperature sensor is fixed to the outer wall of one side of the installing plate through threads; the inner walls of the top and the bottom ofthe evaporation coil pipe are connected with the same flow guiding pipe through threads, and two symmetric anti-seepage gaskets are fixed to the circumferential outer walls of the two ends of the flowguiding pipe through sealants; the outer walls of one sides of the two anti-seepage gaskets on the same side are connected with flow dividing pipes through threads; and the outer wall of one side ofthe flow guiding pipe is connected with a flow collecting pipe through threads, the circumferential outer wall of the flow collecting pipe is sleeved with an installing sleeve, and an adjusting mechanism is arranged in the flow collecting pipe. According to the anti-freezing device and method, heat losses are effectively accelerated, the temperature of surrounding air is rapidly increased, accordingly, the frost melting time is shortened, and the defrosting and unfreezing efficiency is improved.

The invention aims to provide an oxygen-enriched strengthening smelting method for a horizontal reduction furnace. The method is characterized in that lead-antimony-copper-containing slag and anthracite are uniformly compounded, two feeding funnels are adopted for feeding in two batches, the addition of the two batches of materials and the spraying-in of matched oxygen-enriched air are correspondingly controlled, the materials are gradually heated to the smelting temperature, smelting is conducted, and soda ash is added after smelting is completed for slagging; due to the fact that a 10-degreedip angle is formed between the oxygen-enriched smelting furnace and the ground, firstly, alkali slag is removed from a lead opening of the oxygen-enriched strengthening reduction furnace, and then oxygen-enriched reinforced reduction furnace slag is removed; and finally, an lead-antimony alloy is made into a casting ingot by a lead pump, matte copper on the surface of the lead-antimony alloy isremoved, and separate piling is conducted, so that the smelting time can be shortened, and the energy consumption can be reduced.

The invention provides preservation ice used for sliced salmon sushi, and a preparation method for the preservation ice. The preservation ice comprises the following preparation raw materials: inulin,rosemarinus officinalis extracts, natamycin, potassium sorbate, sodium chloride, Arabic gum and water, wherein the water is optimally lemon-ginger juice prepared from lemon and fresh ginger. Under asituation that a cold refrigeration agent is not used, the preservation ice is completely prepared from edible and nontoxic ingredients, ice melting time is effectively prolonged, the periphery of thesliced salmon sushi guarantees to be continuously kept at a low temperature state, an oxidization rate of the sliced salmon sushi is alleviated, and the problem that salmons are likely to rot in a preservation process is solved.