508results about How to "Increase surface temperature" patented technology

PCT No. PCT/EP97/03818 Sec. 371 Date Mar. 3, 1998 Sec. 102(e) Date Mar. 3, 1998 PCT Filed Jul. 17, 1997 PCT Pub. No. WO98/03440 PCT Pub. Date Jan. 29, 1998In a known process for the production of quartz glass bodies, SiO2 particles are deposited of the mantle surface of a cylindrical carrier rotating about its longitudinal axis, forming an elongated, porous preform, where the SiO2 particles are formed in a plurality of flame hydrolysis burners which are arranged in at least one burner row parallel to the longitudinal axis of the carrier and are moved at a preset translational speed forward and back between turnaround points at which points their direction of movement is reversed, and in which process the preform is sintered. In order to make available on this basis an easily accomplished process that makes it possible to manufacture a preform which is largely free of localized density variations, the invention proposes on the one hand that the base value of the surface temperature of the preform being formed be kept in a range between 1,050 DEG C. and 1,350 DEG C., that the average peripheral velocity of the preform be kept in the range between 8 m/min and 15 m/min and the average translational velocity of the burner row be kept in a range between 300 mm/min and 800 mm/min. On the other hand, the object is also accomplished according to the invention and on the basis of the known process in that in the area of the turnaround points (A, B) the peripheral velocity of the preform being formed is increased and/or the flame temperature is lowered and/or the distance of the burners from the preform surface is changed.

A first heat-treating method involves monitoring at least one thermal efficiency parameter associated with an irradiance system configured to produce an irradiance flash incident on a surface of a workpiece, and automatically updating control information used by the irradiance system to produce the irradiance flash, in response to the monitoring of the thermal efficiency parameter. A second method involves predicting a heating effect of an irradiance flash to be incident upon a surface of a workpiece, in response to a measurement of a heating parameter of the surface, and pre-adjusting the irradiance flash, in response to the predicted heating effect. A third method involves measuring a temperature of a surface of a workpiece during an initial portion of an irradiance flash incident on the surface, and controlling a power of a remaining portion of the irradiance flash, in response to the temperature.

A heat sink includes a fluid channel and a cooling wall in contact with coolant flowing in the fluid channel. The channel is configured to vary the velocity of coolant along the length of the fluid channel to vary the coolant's heat transfer coefficient and thereby compensate for the coolant's temperature rise along the length of the fluid channel. The result is a heat sink that is isothermal along its length.

An internal combustion engine employs fuel injectors positioned to inject fuel directly into combustion chambers of the engine, and an electronic engine controller (EEC) to control operation of the engine. The EEC implements a cold start routine which controls the amount of fuel injected, the time at which the fuel is injected and spark timing to achieve a rapid increase in temperature of the engine and the exhaust system components, thereby decreasing tailpipe hydrocarbon emissions during cold start.

The invention discloses a preparation method of a large-size aluminum alloy ingot, relating to a preparation method of aluminum alloy ingots, and the provided preparation method of a large-size aluminum alloy ingot solves the problem of easy cracking during preparing the large-size aluminum alloy ingots by the traditional aluminum alloy ingot preparation method. The method comprises the following steps of: spreading and scattering a NO. flux at the bottom of a smelting furnace; adding aluminum ingots, electrolytic copper, zinc ingots, aluminum-silicon intermediate alloy, aluminum-iron intermediate alloy, aluminum-manganese intermediate alloy, aluminum-chromium intermediate alloy and aluminum-titanium intermediate alloy into the smelting furnace and spreading and scattering a covering agent; heating to ensure that the materials are smelted, sequentially adding a zirconium composite salt and magnesium ingots as well as smelting and refining to obtain an aluminum alloy melt; filtering the aluminum alloy melt and then pouring into a crystallizer; and finally, obtaining the large-size aluminum alloy ingot through casting. The thickness of the ingot prepared by using the method is 500-600mm, the width is 1,600mm, and the length is 1,500-2,500mm. The ingot has no cracks, good surface quality and uniform internal grains, and the yield is not smaller than 65 percent.

The present invention relates to a method of regulating and controlling surface temperature of concrete or asphalt structure (the structure) and the like, as well as atmospheric or air temperature around the structure by encapsulating and containing temperature (thermal) control materials (TCMs) or/and water in the structure which constructs or constitutes pavements, roofs, parking lots, walls and the like. Volume ratio of water and one or more TCMs encapsulated and contained in the structure are from 0.01% to 99.99%. Based on simulation analysis, on one hand, the present invention, in summertime, can reduce the highest temperature on surface of the structure by up to 56.5% (reduced by about 46° C.), and reduce the highest temperature of air around the structure by up to 54.4% (reduced by about 48° C.), therefore “heat island” effect in urban areas in summer can significantly be reduced, thus saving cooling energy and benefiting human health. On the other hand, in wintertime, by the invention the surface temperature of the structure can be raised by up to 5.6° C., and the temperature of air around the structure can be raised by up to 5° C., accordingly heating energy demand is reduced.

The invention discloses a high flame retardant polyurethane rigid foam outer wall thermal insulation system. From a basic unit wall provided with a keel and connecting pieces, a prime coat thickening layer, a polyurethane rigid foam layer, an interface layer, and soft tiles, light tiles or a reflective coating are arranged in turn. In the system, the prime coat thickening layer has high adhesion and good wet bonding strength for the basic unit wall and the polyurethane rigid foam; and the high flame retardant polyurethane rigid foam outer wall thermal insulation system is foamed by pure water, and is halogen-free, flame retardant, safe and environment-friendly. The vertical face of the wall is successfully foamed on site, and the polyurethane rigid foam can be directly sprayed and foamed on the basic unit wall which is treated by the prime coat thickening layer, can reach high adhesion to the basic unit wall after 24 to 48 hours, and has the coefficient of thermal conductivity of less than 0.03W/(m.K), the vertical burning reaching V-0 level, and the water absorption of less than 2.5 percent.

The invention discloses a preparation method of a large-size aluminum alloy ingot, relating to a preparation method of aluminum alloy ingots and solving the problems of easy cracking and difficult forming during preparing the large-size aluminum alloy ingots by the traditional aluminum alloy ingot preparation method. The method comprises the following steps of: spreading and scattering a NO.1 flux at the bottom of a smelting furnace; adding aluminum ingots, electrolytic copper, zinc ingots, aluminum-silicon intermediate alloy, aluminum-iron intermediate alloy, aluminum-manganese intermediate alloy, aluminum-chromium intermediate alloy and aluminum-titanium intermediate alloy into the smelting furnace and spreading and scattering a covering agent; heating to ensure that the materials in the smelting furnace are smelted; adding magnesium ingots and then smelting; then refining to obtain an aluminum alloy melt; filtering the aluminum alloy melt and then pouring into a crystallizer; and finally, obtaining the large-size aluminum alloy ingot through casting. The thickness of the prepared ingot is 500-600mm, the width is 600mm, and the length is 2,000-3,500mm. The ingot has no cracks, good surface quality and uniform internal grains, and the yield is not smaller than 90.5 percent.

The invention relates to an anti-condensing closed-type display cabinet, which comprises a box body and a glass cabinet door. The glass cabinet door is installed on door frames. The door frames are fixedly connected with the box body. A refrigerating system is installed in the box body. An outer cold air duct and an inner cold air duct are installed in the box body. The first cold air duct outlets of the outer cold air duct are arranged in the box body at positions adjacent to the glass cabinet door, and the first cold air duct outlets and first cold air duct inlets are relatively arranged vertically to form an outer cold air curtain; and the second air duct outlets of the inner cold air duct are arranged in the box body at positions adjacent to the outer cold air curtain, and the second air duct outlets and second air duct inlets are relatively arranged vertically to form an inner cold air curtain. The invention provides the anti-condensing closed-type display cabinet which has a good refrigerating effect and can effectively prevent condensate from occurring on the external surface of the glass cabinet door at the same time.

A system for deicing a wind turbine blade includes an electrically powered active plasma actuator applied to a desired portion of a wind turbine blade. The activated plasma actuator energizes the air in the vicinity of the plasma actuator to increase the surface temperature of the wind turbine blade in the vicinity of the plasma actuator sufficiently to reduce or eliminate the collection of ice on a desired portion of the wind turbine blade.

A refrigerator having a room (3) the temperature in which can be switched, by cooling by a cooling device (17) and by heating by a heater (15), between the low temperature side where an object is stored cooled and the high temperature side where the temperature is maintained in the range of 50 DEG C - 80 DEG C in which food to be heated is kept warm.

An ultrasonic probe suitable for reducing reflected waves returning from a rear surface part to a transducer side, and an ultrasonic diagnostic apparatus. Ultrasonic probe 1 comprises transducer 10 transmitting and receiving ultrasonic waves to and from a subject, a backing material 12 disposed on the rear side of the transducer 10, and heat dissipating block 14 stacked on the backside of the backing material 12.

At least one of the backing material 12 and heat-dissipating block 14 comprises void 16 therein. A sound absorbing material 18 is desirably filled in void 16.

The invention relates to a fouling and slagging resistance and high temperature and corrosion resistance ceramic paint and a preparation and usage method thereof. The ceramic paint comprises, by mass, the components of 20-30% of filler, 23-29% of binders, 0.8-1.2% of addition agents and the balance water. According to the ceramic paint, the formula component and ratio are reasonable, the filler granularity is small, granularity matching among different filler components is reasonable, and the matching compatibility of the filler and a binder system is good. A ceramic coating prepared by spray coating can resist high temperature 1320 DEG C, is thinner, has the functions of resisting fouling and slagging and resisting high temperature and corrosion, and cannot be pulverized and fall off in a long-term high-temperature operating environment; the high emissivity above 0.95 can be still kept at high temperature and is close to the thermal expansion coefficients of metal, and heat transfer can be enhanced; the coating integrates chemical inertness and passivation protection into a body, and therefore a high-temperature corrosion environment is prevented from corroding the metal through the compact ceramic coating; meanwhile, due to the fact that the coating has the self-cleaning effect, the coating can be applied easily and conveniently.

The invention discloses a method for preparing an ultraviolet (UV) curing flame-retardant coating material. The method comprises the following steps of: (1) preparing functional sol which is nano-sol modified by a silane coupling agent or sol generated by hydrolyzing alkoxide or the silane coupling agent; and (2) adding 20 to 70 mass percent of UV curing resin, 20 to 50 mass percent of reactive diluent, 5 to 40 mass percent of functional sol, 0 to 15 mass percent of nano antimony tin oxide slurry, 0 to 5 mass percent of glass microspheres, 3 to 5 mass percent of initiator and 0.1 to 6 mass percent of leveling agent into a dispersing kettle, and dispersing for 0.5 to 3 hours at the rotating speed of 1,000 to 2,000rpm to obtain the UV curing high-hardness wear-resistant flame-retardant coating material. The invention also discloses the UV curing flame-retardant coating material. The UV curing flame-retardant coating material can prevent heat transfer from the source, the surface temperature and internal environment temperature of the coating material are effectively reduced, and the aims of improving the working environment and reducing energy consumption are fulfilled.

An improved fuel processor for fuel cells is provided whereby the startup time of the processor is less than sixty seconds and can be as low as 30 seconds, if not less. A rapid startup time is achieved by either igniting or allowing a small mixture of air and fuel to react over and warm up the catalyst of an autothermal reformer (ATR). The ATR then produces combustible gases to be subsequently oxidized on and simultaneously warm up water-gas shift zone catalysts. After normal operating temperature has been achieved, the proportion of air included with the fuel is greatly diminished.

In a method for injection molding molten materials, especially plastic, in a mold that has a mold surface which comes into contact with the material, at least one coating on the mold surface and a temperature-control means for the mold surface, the mold surface is cooled by the temperature-control means so that the molten material solidifies at the interface with the coating and an injection-molded part can be removed from the form. During this process the molten material is brought into contact with the coating on the mold surface, the thickness of said coating being selected in coordination with the heat penetration coefficient of the coating material such that a specified 60° gloss level and/or color value L is obtained for the injection-molded part.

The invention discloses a novel carbon fiber composite electric heating film which comprises a conductive carbon fiber layer, wherein the conductive carbon fiber layer is of a meshy structure weaved by carbon fibers, two ends of the conductive carbon fiber layer are connected with metal electrodes, and the conductive carbon fiber layer is entirely cladded by an insulated heat conduction plastic film to form a laminated structure. The carbon fiber electric heating film provided by the invention is resistant of high temperature and not easy to oxidize; and the outer-layer heat conduction plastic of the carbon fiber electric heating film is an insulated material and can resist high temperature of 300 DEG C and high voltage; and therefore, the carbon fiber electric heating film provided by the invention has extremely high safety and can be guaranteed to be used for over 50 years. The carbon fibers supply heat to the external environment in an infrared irradiation mode, is free of dust, noise, wastes and waste gases and is basically free of electromagnetic irradiation. The invention has the advantages of concise preparation process, low cost, energy source saving and eco-environmental protection and accords with the environment protection and energy source development directions.