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73results about How to "Lower core temperature" patented technology

Thin film for vertical form fill and seal packaging of flowable materials

A multi-layer film for vertical form, film and seal systems for liquid, powder, granules and/or other flowables packaging, said multi-layer comprising: an inner layer made of polyethylene, a blend of polyethylenes or ethylene copolymers; a core, comprising one or more than one layer, made from a blend of polypropylene, linear low density polyethylene, a polymer compatibilizer or tie-layer resin, and/or low density polyethylene, said core being applied against the inner layer; and an outer layer (same or different from the inner layer or the core layer) is made of a polyethylene or a blend of polyethylenes with or without ethylene copolymers, said outer layer being applied against the core and opposite the inner layer; said multi-layer film having an overall thickness of lower or equal to 2.5 mil and at least one of the properties listed hereinafter: a stiffness (as measured by 1% secant modulus in the film direction) varying from 79000 psi to 140000 psi; a tensile strength at yield of from 2100 psi to 3300 psi; (measured in film machine direction) and a tensile strength at break of from 4700 to 6700 psi (measured in film machine direction). A method of forming, sealing and filling a pouch with said film, a pouch formed with said film and use of said film to form a pouch.
Owner:LLOYD GEORGE IAN

Thin film for vertical form fill and seal packaging of flowable materials

InactiveUS20070254119A1More sealEnhance heat transfer characteristicSynthetic resin layered productsCeramic shaping apparatusPolypropyleneEngineering
A multi-layer film for vertical form, film and seal systems for liquid, powder, granules and/or other flowables packaging, said multi-layer comprising: an inner layer made of polyethylene, a blend of polyethylenes or ethylene copolymers; a core, comprising one or more than one layer, made from a blend of polypropylene, linear low density polyethylene, a polymer compatibilizer or tie-layer resin, and/or low density polyethylene, said core being applied against the inner layer; and an outer layer (same or different from the inner layer or the core layer) is made of a polyethylene or a blend of polyethylenes with or without ethylene copolymers, said outer layer being applied against the core and opposite the inner layer; said multi-layer film having an overall thickness of lower or equal to 2.5 mil and at least one of the properties listed hereinafter: a stiffness (as measured by 1% secant modulus in the film machine direction) varying from 3500 psi to 150000 psi; a tensile strength at yield of from 1700 psi to 3300 psi; (measured in film machine direction) and a tensile strength at break of from 4300 to 7400 psi (measured in film machine direction). A method of forming, sealing and filling a pouch with said film, a pouch formed with said film and use of said film to form a pouch.
Owner:GLOPAK INC

Preparation method and application of 550 MPa-grade ultra-fine grain high-strength weather-resistant steel

The invention relates to a preparation method and application of 550 MPa-grade ultra-fine grain high-strength weather-resistant steel and belongs to the technical field of metallurgy. The preparation method comprises the steps that continuous casting blanks directly enter an M rack rough rolling unit under the high pulling speed and are subjected to M-pass continuous heavy reduction (50-60%) rough rolling, and austenite grains are greatly refined; after rough rolling, middle blanks are rapidly heated through an induction heating furnace to the temperature needed for a finish rolling inlet, and meanwhile a reverse temperature field is formed; and then sequentially through a finish rolling set, laminar flow cooling and a reeling machine, finally the organization characteristics that the surface and the core part are coarse, and the portion of the 1 / 4 thickness position is fine are formed. In the production process, finish rolling and rough rolling are both full-headless rolling. An ultra-fine grain high-strength weather-resistant hot-rolling steel belt with the weather resistance being equivalent to corten-A is obtained, and the effects that the thin effect replaces the thick effect and the hot effect replaces the cold effect are achieved; while the weight of a car body is small, the service life of a car plate is prolonged, the production efficiency is improved, and the production cost is reduced; and meanwhile energy consumption is reduced, emission is reduced, and resource-saving and environment-friendly production is achieved.
Owner:UNIV OF SCI & TECH BEIJING +1

Boron carbide shielding assembly

The invention discloses a component for shielding neutronic reactor core. The component consists of three parts: a head part, a middle part and a tail part; wherein, the head part is composed of a manipulation head and an upper transitional joint. The manipulation head is inosculated with component handling equipment and is also provided with an outlet hole for sodium; the external side of the upper transitional joint is provided with a locating block to guarantee the radial positioning among components, and the upper transitional joint is welded on the upper surface of a hex wrapper tube. The middle part is composed of a hex wrapper tube and a shield which is arranged in the wrapper tube. The tail part is composed of a lower transitional joint and a pin. The lower transitional joint is welded on the bottom surface of a hex wrapper tube and the pin is provided with an inlet hole for sodium. The invention uses high-density and hot-pressing a boron carbide pellet to guarantee that the boron carbide pellet dose not escape out of a rod after cracking, and at the same time an absorbing rod adopts a ventilation-typed top end plug to extract the helium gas produced in the B-10 (n, Alpha)reaction. The technical proposal of the invention is not only practical but also solves the bearing pressure of a casing on the absorbing rod effectively.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Preparation method and application of 700 MPa grade ultra-fine grain high-strength weathering steel

The invention relates to a preparation method and application of 700 MPa grade ultra-fine grain high-strength weathering steel. The preparation method includes the steps that a continuous casting blank directly enters an M rack rough rolling unit at a high pulling speed and is subject to M-gate continuous high reduction (50%-60%) rough rolling, austenite grains are greatly refined, after rough rolling is carried out, an intermediate billet is quickly heated by an induction heating furnace to the temperature needed by a finish rolling inlet, and meanwhile a reverse temperature field is formed; and then the blank sequentially passes through a finish rolling unit, a laminar cooling part and a reeling machine, and the microstructure characteristics that the surfaces and core parts are thick and 1/4 thickness parts are thin are finally formed. In the production process, finish rolling and rough rolling are both full-endless rolling. By means of the preparation method, an ultra-fine grain high-strength weathering steel strip with the weather fastness equal to that of corten-A can be obtained, the effects of replacing thick parts with thin parts and replacing cold with heat are achieved, and the automotive body weight is small; and meanwhile, the service life of an automotive sheet is prolonged, the production efficiency is improved, the production cost is reduced, energy consumption is reduced, emission is reduced, and resource-saving and environment-friendly production is achieved. The preparation method and application belong to the technical field of metallurgy.
Owner:UNIV OF SCI & TECH BEIJING +1

UO2-metal fuel pellet and production method thereof

The invention discloses a UO2-metal fuel pellet and a production method thereof. The production method comprises the following steps: S1, weighing the following raw materials in mass percent: 0-2% ofCr2O3, 0-2% of MoO2, 0-2% of ZrO2 and the balance of UO2; S2, ball-milling and uniformly mixing the raw materials to form mixed powder; S3, pressing the mixed powder to form a billet, and performing high-temperature pre-sintering to obtain a solid solution; S4, crushing the solid solution, and performing sieving and ball milling to form granular mixture; S5, doping metal powder into the granular mixture, and performing mixing to ensure that the surface of each granule in the granular mixture is coated with the metal powder; and S6, performing compression molding on the granular mixture doped with the metal powder, and performing densification sintering to obtain the UO2-metal fuel pellet. The UO2-metal fuel pellet disclosed by the invention has the advantages that the thermal conductivityof the pellet is increased by 50% or above due to addition of the metal, the grain size of the pellet is increased, the core temperature of the pellet fuel in service is obviously reduced, the temperature gradient is reduced, the release of fission products of the pellet fuel is inhibited, and the performance of a fuel rod is enhanced.
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +3

Preparation method and application of camellia flower extracting solution

The invention provides a preparation method and an application of a camellia flower extracting solution. The method comprises steps as follows: A, selecting fresh camellia flowers without damage and diseases, and drying the camellia flowers with a refraction window drying technology to obtain a dried camellia flower product; B, performing airflow superfine crushing and sieving on the dried camellia flower product, and adding a quaternary system deep-eutectic solvent for ultrasonic extraction to obtain an extracted mixture; C, mixing the extracted mixture and deionized water, regulating pH, andadding enzyme for enzymolysis; D, leaving a product to stand for a certain time after enzymolysis, and filtering the product to obtain the camellia flower extracting solution. According to the method, drying is performed with the refraction window drying technology, superfine crushing is performed, the non-toxic deep-eutectic solvent is taken as an extracting agent, and the production process issimple, efficient, safe and green; the defects that a large quantity of toxic organic solvents and complicated column separation processes are required for production of conventional epicatechin are overcome. The obtained extracting solution has the skin repairing efficacy, the bacteriostasis function and high antioxidation capability and is safe and non-irritant.
Owner:SHANGHAI FOREST CABIN BIOLOGICAL TECH +1

Heat uniform distribution and dissipation structure and heat uniform distribution and dissipation process for portable electronic equipment

The invention provides a heat uniform distribution and dissipation structure and a heat uniform distribution and dissipation process for portable electronic equipment. The heat uniform distribution and dissipation structure comprises a front shell and a rear shell. The rear shell is fastened at the rear of the front shell, a display screen and a touch screen are arranged at the front of the front shell, and electronic components are arranged inside a shell comprising the front shell and the rear shell. The heat uniform distribution and dissipation structure is characterized by further comprising heat uniform distribution layers and heat dissipation layers, the heat uniform distribution layers are arranged at the front of the portable electronic equipment, the heat dissipation layers are arranged at the rear of the portable electronic equipment, and a composite membrane is arranged on each electronic component. The heat uniform distribution and dissipation structure and the heat uniform distribution and dissipation process have the advantages that heat diffused by heat sources of the handheld equipment can be uniformly dispersed in integral cavities (by the heat uniform distribution layers), heat exchange can be carried out on the external (and the heat dissipation layers), accordingly, core temperatures can be definitely reduced, the problem of heating of machine bodies or breakdown can be solved, the performance of the electronic equipment can be relatively sufficiently played, and consumers can have excellent man-machine experience.
Owner:M VICTORY SPECIFIC MATERIAL

Gradient type concrete water pipe control system and control method

The invention relates to the field of civil engineering, in particular to a gradient type concrete water pipe control system and control method. According to the gradient type concrete water pipe control system and control method, in the temperature rising period of concrete, the center temperature of the concrete can be reduced as quick as possible with the highest efficiency, the temperature can be reduced by 20-25 DEG C at maximum, adiabatic temperature rising of the concrete is equivalently reduced, and the cracking risk is reduced; in the temperature decreasing period of the concrete, the temperature decreasing speed of the concrete can be reduced by adjusting the water temperatures of water pipes in different positions of the concrete, the temperature decreasing speed of the concrete is smaller than or equal to 3.0 DEG/day, impact of contraction deformation is reduced, and the cracking risk is reduced; and meanwhile the concrete water pipe control system can automatically read the temperatures of temperature measuring points inside the concrete and adjust the water inlet temperatures of the water pipes according to the actual temperatures of the parts inside the concrete, the temperature gradient among the interior, middle and exterior of the concrete and air is reduced to the maximum extent, and the cracking risk is reduced.
Owner:CCCC WUHAN HARBOR ENG DESIGN & RES

Method and apparatus for heating glass melting furnaces with fossil fuels

During the heating of glass melting furnaces having a combustion chamber with regenerators for preheating oxidation gases, with port necks that open into the combustion chamber, with primary burners and with secondary burners that are installed in a cascade arrangement relative to the primary burners, the secondary burners are operated as cascade burners with a relatively low proportion of the fuel, the secondary fuel. Flames are thereby created in over- and sub-stoichiometric conditions and the flame gases formed are mixed with one another so that the complete combustion process in the combustion chamber is more or less stoichiometric. The secondary fuel is supplied by the secondary burners to a step, installed in the port neck. In order to prevent or reduce soot and graphite deposits in the step without increasing the nitrogen oxide content in the furnace waste gases, a secondary oxidation gas is blown into step during the firing phase of each port neck in addition to the primary oxidation gas preheated in the regenerators that flows over the step. If significant deposits of carbon material and/or temperature problems occur, then in a similar way an oxidation gas can be blown in during the exhaust phase for the furnace waste gases of each port neck when the secondary burner is switched off.
Owner:BETEILIGUNGEN SORG

Low-melting-point optical glass forming device

The invention provides a low-melting-point optical glass forming device, and belongs to the technical field of optical glass forming. The problem that stripes are formed on the surface of a low-melting-point optical glass strip is mainly solved. According to the main scheme, the device is characterized in that a striker plate and a striker plate fixing frame are additionally arranged on a mold rear baffle; a leaking groove with a triangular section is formed by the striker plate and the mold rear baffle; under the action of the leaking groove, molten glass flowing out of a material pipe is changed into a strip shape from a columnar shape, the superficial area of the molten glass is increased, the cooling efficiency of a mold on the molten glass is improved, meanwhile, the temperature difference between the center and the edge of the molten glass is reduced, the viscosity difference is reduced, and convection stripes caused by large viscosity difference between the center and the edge during columnar molten glass forming can be prevented; and meanwhile, the arc-shaped structure of the working surface of the rear baffle is formed, so that the molten glass directly flows onto the rearbaffle to be cooled, the stroke and retention time of the molten glass on the mold are prolonged, the molten glass is cooled in a shaping area range on the rear baffle, and convection stripes causedby high molding temperature and low viscosity are prevented.
Owner:HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD

Device and method for partitioned loading of high-temperature gas cooled reactor core

The invention discloses a device and a method for partitioned loading of high-temperature gas cooled reactor cores. The device comprises a reactor pressure vessel, a burnup measuring system, a spent fuel system, a fuel loading and unloading system, a new fuel system and a three-way valve group; and a high-temperature gas cooled reactor fuel ball is loaded in the reactor pressure vessel, an outletin the bottom of the reactor pressure vessel is communicated with an inlet of the burnup measuring system, an outlet of the burnup measuring system is communicated with an inlet of the spent fuel system and an inlet of the fuel loading and unloading system, an outlet of the new fuel system is communicated with an inlet of the fuel loading and unloading system, an outlet of the fuel loading and unloading system is communicated with N feeding ports in the top of the reactor pressure vessel through the three-way valve group, a reactor core loading subarea in the reactor pressure vessel is dividedinto N loading subareas, one loading subarea corresponds to one feeding port, and each feeding port is communicated with the corresponding loading subarea. The device and the method can effectively solve the problems of non-uniform burnup and higher power peak factor of the reactor cores.
Owner:XIAN THERMAL POWER RES INST CO LTD
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