45 results about "Melting heat" patented technology

The application belongs to the technical field of metal-organic framework material and gas separation membrane preparation, and particularly relates to a preparation method of a halogen-modified high-porosity self-supporting MOF glass membrane, which comprises the following steps: firstly, a high-porosity vitrifiable MOF material with imidazole as a first ligand and a series of halogen benzimidazoles as second ligands is synthesized by a low-temperature solvothermal method; then, halogen MOF powder with high-temperature melting characteristics is pressed into a dense and crack-free disc-shaped precursor by a mechanical cold-pressing method; and finally, the disc-shaped precursor is subjected to high-temperature melting heat treatment under an inert atmosphere, and the heating temperature can ensure that the MOF particles are fully melted and flow, so that the interstitial gaps, defects and grain boundaries among the original particles in the thin sheet are completely eliminated. The application aims to prepare a defect-free, high-selectivity and high-flux MOF glass membrane, and solves the problems of low porosity and limited gas separation performance of the existing MOF glass membrane.

The invention discloses a method for improving metallurgical quality of a nickel-based high-temperature alloy large thin-wall complex-structure casting, which comprises the following steps of: preparing a wax mould of the nickel-based high-temperature alloy large thin-wall complex-structure casting by adopting an additive manufacturing technology, and bonding the wax mould with a pouring gate to form a wax mould module; preparing a ceramic shell of the wax mold module; according to the designed alloy components and process, metal elementary substances are put into corresponding areas in a three-chamber vacuum induction melting heating furnace to be smelted, and nickel-based high-temperature alloy melt is obtained; according to the designed partition preheating control mode of the ceramic shell, the ceramic shell is put into a corresponding area in a three-chamber vacuum induction melting heating furnace to be preheated in a partition mode; and the nickel-based high-temperature alloy melt is poured into the ceramic shell, after pouring is completed, the ceramic shell is pulled downwards according to the designed variable-speed pulling technology, and the nickel-based high-temperature alloy large thin-wall complex-structure casting is obtained. According to the method, a plurality of design details are integrated, and the prepared casting has excellent metallurgical quality.

The invention provides selective laser melting homogeneous powder and a method for preparing a composite material. The selective laser melting homogeneous powder comprises, by weight, 85%-98.5% of aluminum alloy powder, 0.5%-5% of titanium powder and 1%-10% of high-entropy alloy powder. Putting the weighed powder into a ball milling tank, introducing protective gas to exhaust air, and carrying out high-energy mixing by adopting high-efficiency mixing equipment without adding any grinding ball medium; according to the method, a ball-free mixing process and subsequent processes are cooperated, grains are greatly refined through the in-situ nucleation effect of Ti, a pinning grain boundary exists in an HEA phase, the brittleness temperature interval is reduced through preheating at 150 DEG C, stress concentration is scattered through rotation at 67 DEG C, and the thermal gradient and the stress field in the selective laser melting process are effectively managed; through the synergistic effect of multiple mechanisms, the problem of selective laser melting hot cracks of the aluminum-based composite material is solved; the product does not need any subsequent heat treatment, and the tensile strength of a printed part can stably reach 500 MPa in an As-bump state. The preparation process is simple, the period is short, the cost is low, and the yield is high.

The invention relates to an oriented polyester film and a manufacturing method thereof. The oriented polyester film comprises a polyester resin in which a diol component and a dicarboxylic acid component are polymerized. When analyzed by differential scanning calorimetry (DSC) after the first heat treatment and the second heat treatment, the oriented polyester film exhibits a first melting temperature (Tm1) and a second melting temperature (Tm2), and the ratio (H2 / H1) of the second melting heat (H2) at the second melting temperature (Tm2) to the first melting heat (H1) at the first melting temperature (Tm1) is not less than 0.1. The oriented polyester film according to the present invention can be used as a heat shrink film as a label and / or packaging of a plastic container, and particularly has excellent crystallinity, thereby improving the efficiency of a recovery process of a waste plastic container.

The invention relates to the technical field of monocrystalline silicon manufacturing, in particular to a rapid ending method based on continuous Czochralski (CCz) single crystal, which comprises the following steps: when the length of a crystal bar reaches a set target length or a specified residual material weight, triggering a rapid ending program; in the first stage, the blanking speed of granular silicon of a granular silicon blanking device is reduced from a normal value to 50%-60% of an initial value at a constant speed, the melt heat consumption is reduced, and the radial temperature difference of the melt is reduced; synchronous speed increasing: after material dropping is started, the pulling speed of the crystal bar is increased to 1.6-1.8 times in a step manner, the diameter of the crystal bar is shrunk, and a solid-liquid interface is kept in a flat state; in the second stage, the blanking speed of the granular silicon blanking device is secondarily reduced to 20%-30% of the initial value. According to the technical scheme, heat is released through the heat capacity of the melt, spontaneous overall synchronous rising of the temperature is achieved through the melt heat capacity conservation principle, temperature lag from the edge to the center is eliminated, the temperature response rate is increased, radial temperature gradient decline is achieved, the tail subfissure extension length is reduced, and the ending time is shortened.

The application relates to the technical field of temperature regulation, and particularly discloses an ice-energy heat source ice-stab heat-melting heat pump unit. The ice-stab heat-melting heat pump unit comprises an ice-stab evaporator, a gravity liquid separator, a heat pump compressor, a gas storage separator and a flash expansion device. The ice-stab evaporator comprises an ice-water side shell pipe body and a working medium pipeline unit. The ice-stab evaporator is internally provided with a cavity. The side wall of the ice-stab evaporator is provided with a cold water inlet and an ice-water outlet. The working medium pipeline unit comprises an electrolytic layer ice-stab pipe. The outer wall of the electrolytic layer ice-stab pipe is fixedly provided with a plurality of protrusions. The gravity liquid separator is provided with a first air inlet, a first air outlet, a first liquid outlet and a first liquid inlet. The heat pump compressor is provided with an air suction port, an air exhaust port and a compression port. The cooling condenser is provided with a third air inlet, a second liquid outlet, a hot water return port and a hot water outlet. The gas storage separator is provided with a second air inlet, a second air outlet and an oil discharge port. The ice-stab heat-melting heat pump unit can improve the utilization rate of low-temperature energy.

In a preferred embodiment, there is provided a pipe fitting comprising a coupling body having an open end and a fusible sleeve sized to be received at the open end for engagement of a pipe thereto, the coupling body comprising a sidewall defining an internal bore sized for receiving at least a portion of the pipe with the fusible sleeve interposed between the sidewall and the pipe in an engaged position, the fusible sleeve having a tapered outer surface for frictional engagement with an inner surface of the sidewall, wherein the fusible sleeve comprises a thermoplastic material and an electrically conductive material combined with the thermoplastic material, the electrically conductive material being located to heat or melt the thermoplastic material upon induction heating of the electrically conductive material, thereby joining the coupling body and the pipe in the engaged position.

The present invention relates to an oriented polyester film and a method for producing the same. The oriented polyester film comprises a polyester resin in which a diol component and a dicarboxylic acid component are polymerized, and when analyzed by differential scanning calorimetry (DSC) after a first heat treatment and a second heat treatment, the oriented polyester film exhibits a first melting point (Tm1) and a second melting point (Tm2), and the ratio (H2 / H1) of the second heat of fusion (H2) at the second melting point (Tm2) to the first heat of fusion (H1) at the first melting point (Tm1) is 0.1 or higher. The oriented polyester film according to the present invention can be usefully used as a heat-shrinkable film applied as a label and / or packaging for plastic containers, and in particular, because it has extremely excellent crystallinity, it improves the efficiency of the recycling process for waste plastic containers.

A heat-shrinkable polyester film having an improved recyclability and excellent attachment and appearance is provided. The heat-shrinkable polyester film, having a property (A) in which a clumping fraction of a polyester resin or the like is 1.2% or less, a property (B) in which a melting point is 190° C. to 230° C., a property (C) in which a melting heat quantity is 25 to 45 mJ / mg, and properties (D1) to (D4) in which a thermal shrinkage ratio in a main shrinkage direction measured under thermal shrinkage conditions at 60° C., 70° C., and 80° C. for 10 seconds is 0 to 5%, 25 to 50%, 55 to 85%, and a standard deviation of the value of the thermal shrinkage ratio measured at 95° C. to 100° C. for 10 seconds is 1.5% or less.

The application relates to a compressor blade and a preparation method thereof and a compressor; the preparation method comprises the following steps: subjecting a GH4068 alloy blank with an average grain size of 1-15 mu m to a structure homogenization treatment at 980-1120 DEG C; extruding a part of the blank after the structure homogenization treatment to obtain a blank with an extrusion deformation part; the extrusion deformation amount is 40-50%; the non-deformed part is die forged into a tenon; the extrusion deformation part is subjected to pre-die forging and final forging treatment to form a blade body with a set thickness, thereby obtaining a compressor blade blank with the blade body and the tenon; and the compressor blade blank is sequentially subjected to heat treatment and finishing, thereby obtaining the compressor blade; in the above steps: the blank needs to be subjected to a 980-1120 DEG C re-melting heat preservation treatment between each deformation pass. The application has simple blade preparation tool requirements, can prepare a GH4068 alloy blade resistant to 750 DEG C on an existing GH4169 alloy blade production line resistant to 650 DEG C, significantly reduces production cost, and is suitable for batch production.

The utility model provides a melt heat preservation furnace which comprises a furnace body, a heating chamber is arranged on the furnace body, a liquid injection nozzle and a combustion nozzle are arranged on the furnace body, the liquid injection nozzle is used for injecting melt into the heating chamber, the combustion nozzle is used for igniting and combusting to heat the melt contained in the heating chamber, the liquid injection nozzle is provided with a liquid inlet port and a liquid guide pipeline connected with the liquid inlet port, and the liquid guide pipeline is communicated with the liquid inlet port. The liquid guide pipeline extends into the heating chamber, and an outlet of the liquid guide pipeline is lower than a nozzle opening of the burner in the heating chamber. According to the utility model, the outlet of the liquid guide pipeline is arranged to be lower than the nozzle opening of the combustion nozzle, so that the outlet of the liquid guide pipeline can be ensured to be immersed below the liquid level in the heating chamber when heat preservation is carried out on the melt, the melt cannot splash to influence flames when the melt is injected into the heating chamber, and heat generated by combustion cannot be dissipated from the liquid injection nozzle.

The utility model relates to a triggering device, a defibrillation electrode and a wearable defibrillator, the triggering device comprises a bottle opening support, a hot melting assembly and a gas storage bottle filled with compressed gas, the bottle opening support is fixedly connected to a bottle opening of the gas storage bottle, a gas outlet channel is arranged in the bottle opening support, and the gas outlet channel is communicated with an inner cavity of the gas storage bottle; the hot melting assembly is fixedly installed on the bottle opening support and used for blocking the air outlet channel. The hot melting assembly comprises a hot melting block and an electric heating piece, the electric heating piece comprises a heating end and a connector end which are connected, and the heating end is embedded in the hot melting block; the joint end extends out of the hot melting block; the defibrillation electrode comprises the trigger device. The wearable defibrillator comprises the defibrillation electrode. According to the triggering mode of the triggering device, the electric heating piece is electrified to melt the hot melting block, then compressed air in the air storage bottle can be released, pressure is provided for gel injection through the compressed air, safety is high, and triggering is stable. The defibrillation electrode and the wearable defibrillator have the same technical effects as those of the trigger device.

The utility model discloses an oxygen reduction type graphite heater, which is characterized in that a heating part comprises first U-shaped heating petals and second U-shaped heating petals, the first U-shaped heating petals and the second U-shaped heating petals are sequentially connected end to end, so that two adjacent groups of the first U-shaped heating petals and the second U-shaped heating petals are electrified and connected in series, and an annular structure is integrally enclosed; the first U-shaped heating valve is integrally positioned above the liquid level of the monocrystalline silicon, and the second U-shaped heating valve is integrally positioned below the liquid level of the monocrystalline silicon; the radial cross section area of the first U-shaped heating section is smaller than that of the second U-shaped heating section; the supporting leg pieces are symmetrically arranged on the lower portion of the heating part and extend downwards. The device can ensure that the high-temperature heating range of the upper part of the melt is reduced as much as possible, sufficient heat is provided, the temperature gradient of a solid-liquid crystallization surface is ensured, the heat productivity of the lower part is less, and the heat is gradually dispersed from top to bottom, so that the heat convection of the melt can be reduced, the scouring of the silicon melt to the wall of the quartz crucible is weakened, and the secondary crystallization of the melt is avoided.

The invention discloses a converter blowing source synergistic carbon capture system and method, and belongs to the technical field of metallurgical processes. According to the synergistic carbon capture method for the converter blowing source, the energy-saving and consumption-reducing effects are remarkable, the silicon content of molten iron is controlled to be 0.25%-0.50%, the adding amount of lime is reduced by 12%-18%, and the slagging heat consumption is reduced by 10%-15%, so that the production cost and the energy consumption are effectively reduced; the coal gas recovery rate is greatly improved, the coal gas recovery time at the early stage of blowing is advanced by 130-160 seconds, the coal gas recovery rate per single furnace is increased by 130-150 Nm < 3 >, and the annual recovery rate is increased by 8 million Nm < 3 >, which is equivalent to that about 9600 tons of standard coal is saved; carbon emission is remarkably reduced: by efficiently recovering early-stage coal gas, the annual emission reduction of CO2 is about 0.940 thousand tons, the environmental protection benefit is remarkable, and the national green low-carbon development policy requirements are met; and the smelting process is stable and reliable, and the'drying 'phenomenon in the smelting process of the low-silicon molten iron is effectively prevented by adding the oxide scale and optimizing the oxygen supply system.

The utility model discloses a molar module capable of realizing phase change cooling and temperature equalization. The tooth grinding module comprises a tooth grinding wheel, a solid-liquid phase change part and a rotating shaft, the tooth grinding wheel comprises a cylindrical wheel body and an annular grinding body, the grinding body is integrally formed on the peripheral wall of the wheel body, and a central shaft hole of the wheel body fixedly sleeves the outer end of the rotating shaft; the inner walls of the two circular ring cavities at the left end and the right end in the grinding body are communicated through a plurality of transverse uniform-temperature connecting holes in a circumferential array; the solid-liquid phase change part is any one of an inorganic phase change material, an organic phase change material and a composite phase change material, the annular cavity is filled with the solid-liquid phase change part, and through melting heat absorption and solidification heat dissipation of the solid-liquid phase change part, the temperature of the tooth grinding wheel is maintained at a proper working temperature for stable and efficient grinding. The LED lamp has the advantages of being simple in structure, good in heat dissipation effect and high in machining efficiency.

The invention discloses a temperature self-adaptive thermoplastic elastomer and a preparation method and application thereof, and the temperature self-adaptive thermoplastic elastomer comprises the following components by weight: 22-38 parts of a styrene-butadiene hydrogenated copolymer; 22-38 parts of a phase change material; and 18-38 parts of a maleic anhydride grafted polyolefin elastomer. According to the temperature self-adaptive TPE disclosed by the invention, the maleic anhydride grafted polyolefin elastomer is introduced, so that the bonding performance between the TPE and the PA is remarkably improved. Meanwhile, the phase-change material such as paraffin is introduced, and dynamic temperature balance is achieved by means of the melting heat absorption and crystallization heat release characteristics of the phase-change material. By means of the innovative design, the overheating problem of the electric tool in long-time use is effectively solved, and the interface stress failure risk caused by temperature fluctuation is remarkably reduced.

The utility model discloses a lower portion heating non-ferrous metal melting heat preservation electric furnace, and relates to the technical field of melting heat preservation electric furnaces, in particular to a lower portion heating non-ferrous metal melting heat preservation electric furnace which comprises a base, a first electric telescopic rod is fixedly installed in the base, and a lifting frame is fixedly installed at the extending end of the first electric telescopic rod. The interior of the lifting frame is slidably connected to the top of the base, a support is fixedly installed on one side of the base, a heating base is fixedly installed at one end of the support, and a supporting base is fixedly installed at the top of the lifting frame. According to the heat preservation electric furnace for melting the non-ferrous metal with the heated lower part, through the arrangement of the rotating seat, the heat preservation electric furnace for melting the non-ferrous metal with the heated lower part has the effects that a solution in the electric furnace can be conveniently taken out, the solution does not need to be taken out manually, and people are prevented from being scalded, so that the effect of preventing the people from being scalded is achieved; the purpose of convenient use is achieved.

The invention belongs to the technical field of high polymer materials, and particularly relates to a crystallization regulation and control method of star-shaped polycaprolactone, a polycaprolactone film and application of the polycaprolactone film. The crystallization regulation and control method comprises the following steps: dissolving star-shaped polycaprolactone in toluene to obtain a film forming solution; carrying out melting heat treatment on the film-forming liquid after film formation, and then transferring to a crystallization temperature environment for isothermal crystallization; wherein the formation and growth rate of the polycaprolactone girdle spherocrystals is regulated and controlled by changing the arm number, crystallization temperature and formed film thickness of the star-shaped polycaprolactone. According to the invention, polycaprolactone with a star-shaped topological structure is used, the formation of the annulus spherocrystal, the bandwidth of the annulus spherocrystal and the growth rate of the annulus spherocrystal can be regulated and controlled by changing the arm number, the crystallization temperature and the film thickness, the method is simple, other substances do not need to be added, the preparation conditions are mild and controllable, the operation is convenient, and the method is suitable for industrial production. Pure polycaprolactone materials with different annulus spherocrystal bandwidths and growth rates can be obtained, and application of the pure polycaprolactone materials as special optical materials becomes possible.

This invention discloses a ferrophosphate-based high-entropy glass-ceramic containing a high-entropy monazite phase and its preparation method, used for simultaneously solidifying multiple (minor)actinide nuclides in high-level radioactive waste (HLW). This invention uses five or more simulated (minor) actinide nuclides in equal amounts. Ln ( Ln =La, Ce, Nd, Sm, Eu, Gd, Dy, Ho, Er) simultaneously dissolve into the ceramic crystalline phase, forming a high-entropy monazite phase ( Ln 1 / n )PO4(5≤ n ≤7). The chemical formula of the solidified body is (100- x ()( y Fe2O3-(90- y (P₂O₅-10B₂O₃)-0.5 x P2O5−( x / 2 n ()( Ln 2O3)(mol%), x =0~30mol% y =15~35mol%. The raw materials are mixed according to the formula and then subjected to a one-step melt heat treatment method (melting, nucleation, crystallization) to obtain a solidified iron phosphate-based high-entropy glass-ceramic.

The application discloses a die-casting die temperature control method for metal casting, relates to the field of metal processing, and solves the problem of low die-casting success rate. The method comprises the following steps: obtaining a material type corresponding to pre-input die-casting raw materials and a raw material weight, calculating estimated melting heat of the die-casting raw materials according to the material type and the raw material weight, setting a melting temperature and a melting time length of the die-casting raw materials according to the estimated melting heat, melting and refining based on the melting temperature and the melting time length, obtaining slag-removed molten die-casting raw materials, spraying a release agent to an inner surface of a die-casting cavity, then injecting the slag-removed molten die-casting raw materials into the die-casting cavity, and monitoring the die-casting cavity in real time, correcting and regulating the temperature of the die-casting cavity according to positive and negative temperature abnormal deviation values of a plurality of temperature monitoring sub-regions of the die-casting cavity, taking out die-casting devices in the die-casting cavity after the die-casting cavity is cooled, and improving the die-casting success rate.

The invention discloses an ultrasonic wave-electric heating coupling defrosting method for a cold storage air cooler, which is characterized in that different action mechanisms that ultrasonic wave defrosting can quickly break a frost layer structure and reduce the subsequent melting heat requirement in the initial defrosting stage and electric heating defrosting provides stable and controllable melting heat to ensure that a frost layer is completely removed are subjected to advantage complementation and coupling; and precise on-demand control is applied, that is, the state of a frost layer is precisely sensed through information fusion of multiple sensors, the time sequence and power distribution of ultrasonic waves and electric heating are dynamically coordinated, and finally refined defrosting control with minimum energy consumption and minimum warehouse temperature interference as targets is achieved, so that frost layer growth can be effectively inhibited, and the defrosting efficiency is improved. The defrosting period is prolonged, the defrosting energy consumption is reduced, the reservoir temperature fluctuation peak value in the defrosting process is obviously reduced, meanwhile, residual water on the surfaces of fins is obviously reduced, and the defrosting completeness is improved.

This application provides a method for preparing homogeneous powder and composite materials through selective laser melting, comprising the following weight components: 85%–98.5% aluminum alloy powder, 0.5%–5% titanium powder, and 1–10% high-entropy alloy powder. The weighed powder is loaded into a ball mill jar, and a protective gas is introduced to purge air. High-efficiency mixing equipment is used, without adding any grinding media, for high-energy mixing. This invention utilizes a "ballless" mixing process, and subsequent processes work synergistically. The in-situ nucleation of Ti greatly refines the grains, the presence of the HEA phase pins grain boundaries, preheating at 150°C reduces the brittle temperature range, and rotation at 67°C disperses stress concentration, effectively managing the thermal gradient and stress field during selective laser melting. Multiple mechanisms work synergistically to solve the problem of hot cracking in aluminum-based composite materials during selective laser melting. The product requires no subsequent heat treatment, and the printed part can stably achieve a tensile strength of 500 MPa in the as-built state. This application features a simple preparation process, short cycle time, low cost, and high yield.

The utility model discloses an assembly structure of a mobile phone shell and a support, which well solves the technical problem that the fitting degree between the mobile phone shell and the support is reduced due to the fact that a buckle type assembly structure and a bonding type assembly structure are likely to loosen after being used for a long time, and comprises a hot melting heat conduction main body and a mobile phone shell main body, a circular opening is formed in one side of the mobile phone shell body, an annular groove is formed in one side of the mobile phone shell body, the annular groove is communicated with the interior of the circular opening, a support assembly is arranged in the circular opening, one side of the hot melting heat conduction body is fixedly connected with the support assembly, and a plurality of evenly-distributed welding heads are installed on one side of the hot melting heat conduction body. According to the mobile phone shell, the welding head can heat the mobile phone shell hot melting column on the mobile phone shell main body, and the heated mobile phone shell hot melting column can completely fill the bracket hot melting groove, so that the effect of tight connection can be effectively achieved, and the phenomenon of easy loosening can be effectively solved.

An ethylene-based resin composition having the following requirements (1) to (4) as a material such as packaging material, a film having strength for the protection and rigidity (e.g., easy opening and self-standability on packaging contents) in an excellent balance: (1) A melt flow rate (190° C., 2.16 kg load) is 0.1 g / 10 min or more and 1.0 g / 10 min or less, (2) a density is 915 kg / m3 or more and 935 kg / m3 or less, (3) a melt index (I21: 190° C., 21.6 kg load) is 45 or less, and (4) a ratio of the amount of heat of fusion at 120° C. or higher (Hh / Ht), which is the ratio of the amount of heat of fusion (Hh) determined from a DSC curve at 120° C. or higher to the total amount of heat of fusion (Ht) determined from a DSC curve of DSC measurement, is 10% or more and 55% or less.

The present invention addresses the problem of providing: a laminate which is capable of suppressing the occurrence of ghosts when used in a goggle-type display device; a composite lens; a goggle-type display device; and a method for producing a laminate. A laminate according to the present invention has a curved surface part, and comprises a light absorption anisotropic film and a light reflection anisotropic film. The light absorption anisotropic film satisfies formula (3) and at least one of formulae (1) and (2).　Formula (1): Tm(peak top) ≥ 205°C; Formula (2): ∆Hm ≥ 100 mJ / mg; Formula (3): Sa ≤ 20 nm. In the formulae, Tm(peak top) represents the peak top temperature of the endothermic peak of the DSC curve obtained when the temperature is raised from 25°C to 300°C at a rate of 10°C / minute in differential scanning calorimetry. ∆Hm represents the melting heat quantity of the endothermic peak of the DSC curve obtained when the temperature is raised from 25°C to 300°C at a rate of 10°C / minute in differential scanning calorimetry. Sa represents an arithmetic mean height.

The invention discloses a garbage bag foldable heat-sealing packaging mechanism and an intelligent garbage can, and belongs to the technical field of garbage storage devices. The garbage bag foldable heat-sealing packaging mechanism comprises a heating base, a packaging pressing rod, a folding mechanism and a driving mechanism; the driving mechanism is in transmission connection with the packaging pressing rod and drives the packaging pressing rod to do reciprocating motion relative to the heating base. A heating seat is arranged on the packaging pressing rod, a heating mechanism is arranged on the heating seat, a heat insulation pad is arranged on the packaging pressing rod, the heating mechanism and the heat insulation pad are arranged in parallel, and the heating mechanism is located at the orthographic projection position of the heat insulation pad on the heating seat; one end of the folding mechanism is rotationally connected with the heating base, and the other end of the folding mechanism is rotationally connected with the packaging pressing rod. According to the heat-sealing packaging mechanism with the foldable garbage bag, at most four layers of folds with the uniform thickness can be formed at the closing-up position of the garbage bag, effective melting heat sealing can be achieved even for the thick garbage bag, and therefore the sealing effect is good, and the sealing strength is high.

The utility model relates to the technical field of tilting type aluminum melting furnaces, in particular to an intelligent melting and heat preservation integrated tilting type aluminum melting furnace. Comprising a supporting bracket, a spherical containing groove, a spherical aluminum melting furnace, a translation toothed plate, a feeding port, an exhaust window, a discharging port, a material guiding bracket, a mounting block, a mounting shaft, a mounting gear, a fixed rack, a material guiding channel, a translation assembly, a sliding assembly and a transmission assembly, the transmission assembly is meshed with the translation toothed plate, and the feeding port is formed in the upper portion of the spherical aluminum melting furnace; a discharging opening is formed in one side of the spherical aluminum melting furnace, a material guiding support is arranged outside the discharging opening, a mounting shaft is arranged in the mounting block, the material guiding support is rotationally connected with the mounting block through the mounting shaft, a material guiding channel is formed in the bottom wall of the supporting support, and a fixed rack is arranged at the upper end of the material guiding channel. By means of a series of precise mechanical linkage design, intelligent melting and efficient pouring of the aluminum melting furnace are achieved, and production efficiency is remarkably improved.

The invention relates to the technical field of extruded sheet production, in particular to a high-strength and high-bonding-strength XPS extruded sheet and a preparation method thereof.The high-strength and high-bonding-strength XPS extruded sheet is prepared from, by weight, 70-100 parts of polystyrene plastic particles, 0.2-2 parts of nucleating agent, 0.5-3 parts of chlorinated polyethylene, 0.2-1 part of color master batch particles and 1-10 parts of foaming agent. Compared with the prior art, the high-strength and high-bonding-strength XPS extruded sheet provided by the invention is added with chlorinated polyethylene (CPE), and the material has the characteristics that the chlorine content accounts for 33-37%, the melting heat value J / g is less than or equal to 1.5, the water content is less than 0.11%, the shore hardness is less than or equal to 60%, the elongation at break is more than or equal to 650, and the melting temperature is 170-200 DEG C and is almost the same as that of GPPS polystyrene particles; due to the good physical property, the tensile elongation and the compressive strength of the product can be improved, and therefore the strength of the finished product is improved.

The invention relates to the field of photovoltaic glass production, and discloses a high-transmittance ultrathin photovoltaic glass generation process energy intelligent management and control method, which comprises the following steps: acquiring melting parameters and light transmittance in a photovoltaic glass melting process in real time; according to a preset melting heat calculation model and melting parameters, the melting heat demand of the photovoltaic glass is calculated; inputting the melting parameter and the melting heat demand into a preset neural network, wherein a hidden layer of the neural network is used for calculating a nonlinear residual term; correcting the melting heat demand based on a nonlinear residual term; detecting controllable current process parameters in a photovoltaic glass melting process; calculating the minimum melting heat demand and corresponding target process parameters when the photovoltaic glass meets the target light transmittance requirement; and executing a photovoltaic glass melting process. According to the invention, a set of energy intelligent management and control system with accurate perception, intelligent diagnosis and collaborative optimization is constructed, and the problems of low energy efficiency and difficult quality control in the production of the high-transmittance ultrathin photovoltaic glass are effectively solved.

The application belongs to the field of metal material casting, and discloses a method for improving the hot crack resistance of heat treatment-free aluminum alloy and high hot crack resistance heat treatment-free aluminum alloy. The method comprises the following steps: melting heat treatment-free aluminum alloy to obtain a melt; adding Zr, and optionally Sc and / or Er, to the melt, stirring, degassing, cooling and standing to obtain an alloy melt; carrying out high-temperature melt ultrasonic treatment on the alloy melt to obtain a high-temperature melt, pouring into a mold and carrying out casting to obtain high hot crack resistance heat treatment-free aluminum alloy. The application can effectively control the microstructure and hot crack resistance of the aluminum alloy, and obtain high-quality heat treatment-free aluminum alloy castings with refined solidification structure and eliminated casting hot cracks.