187results about How to "Uniform surface temperature" patented technology

A chemical vapor deposition apparatus has a showerhead, and temperature control apparatus including a heater and a heat dissipation plate for regulating the temperature of the showerhead. The showerhead includes a bottom plate having gas spray openings, and an upper plate. The heater is disposed on an upper plate of the showerhead. The heat dissipation plate contacts an upper portion of the upper plate of the showerhead above the heater so that heat dissipates from the showerhead through the plate. The temperature control apparatus also includes a coolant system by which coolant is fed into a space defined between the heater and the heat dissipation plate. The temperature of the showerhead is precisely controlled using the heater, the heat dissipation plate and the coolant system.

A Lithium Ion battery cooling system for use in a hybrid vehicle comprises a plurality of self-contained liquid cooling modules, each cooling module including a closed and sealed container having an interior space. Each cooling module includes a battery assembly disposed within the interior space of the container and a plurality of battery cells having at least one fluid channel formed therebetween for receiving a fluid therein. A dielectric fluid is disposed within the at least one fluid channel. The dielectric fluid substantially immerses and is in contact with the battery assembly to heat and cool the battery assembly. A heating element is disposed within the interior space and heats the dielectric fluid. A cooling element is disposed within the interior space and cools the dielectric fluid.

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.

A method is provided for producing a bag with a mouth member by liquidtightly melt-bonding a mouth member comprising a thermoplastic resin and a bag unit comprising a relatively soft flexible film, in which uniform surface temperature of the mouth member is realized, generation of an A-shaped gap is prevented, and a bag with a mouth member excellent in the liquidtightness of the melt-bonded part between the mouth member and the bag unit is produced; and also a production apparatus therefor is provided. The method comprises a preheating step of heating a tubular mouth member while rotating it around the cylinder axis thereof, and a melt-bonding step of inserting the heated mouth member into the opening part of a bag unit and pressing, and thereby melt-bonding the mouth member to the opening part of the bag unit.

This invention discloses a common use device for electricity and heat of a solar cell including a liquid container with heat collection working fluid, in which, hot tubes are set on the side walls of the container and set with phase change heat- carry working fluid, a solar cell is connected with the tubes in the container fixedly, an inlet is set at the bottom of the container and an outlet is set at the top of the container, the bottom face is transmissive, heat preservation materials are set at outside of the top and outside of the side wall of the container. This invention can carry away solar heat not changed to electricity quickly by dipping a solar cell in a heat-collection working fluid and connecting to the hot tubes.

A thermodilution catheter having a heating filament which is fabricated so as to be thin and flexible enough to avoid contact with the patient's blood. The heating filament is either inserted in a preformed catheter lumen, incorporated into a wall of the catheter body itself, or wrapped around the catheter body wall and surrounded by an external sheath. Generally, the covering of the heating filament is minimally thin so as to allow the heat from the heating filament to be transferred to the surrounding blood and to minimally increase the overall cross-sectional area. Since the heating filament does not directly touch the patient's blood, the outer surface may be made smooth so as to prevent inducement of blood clots. In addition, the heating filament may be maintained at a safe temperature by forming the heating element of a flexible material having a high temperature coefficient of resistance, low thermal capacitance and high thermal conductivity. Preferably, the temperature coefficient of resistance of the material forming the heater filament is greater than 0.001 Ω/Ω-° C. and the resistance of the heating filament is proportional or inversely proportional to its temperature. By monitoring this resistance, the application of power to the heating filament may be regulated to prevent overheating of the heating filament. Calibration techniques are also disclosed whereby a memory containing encoded calibration information is disposed within or connected to a connector of the catheter. This memory may also include a program segment used by a cardiac output computer having a cardiac output calculation program, whereby the portion of code stored in the memory must be input into the cardiac output computer before the determination of the cardiac output can be performed. As a result of these improvements, the invention enables the thermodilution cardiac output calculation to be performed quite safely and accurately in a clinical setting.

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.

A cryopump is disclosed. The cryopump includes a cryopump main body connected to a vacuum chamber via an inlet. The cryopump main body includes a vacuum container. A shielding section, a two-stage type cryogenic cooler, a baffle, and first cryopanel and second cryopanels are provided in the vacuum container. A top surface of the first cryopanel is disposed at a position nearest to a surface of the baffle. The top surface of the first cryopanel is disposed almost parallel to the surface of the baffle.

In a mobile terminal device, at least one heat conduction layer formed of a member, such as copper, aluminum or carbon, being excellent in heat conductivity is provided inside a circuit board on which electronic components are mounted. The heat generated in the electronic components is promptly dispersed in the direction of the face of the circuit board by the heat conduction layer, and transferred from the whole face of the circuit board to the operation member, such as keys, and the housing, and then radiated to the outside. With this structure, the local temperature rise at the operation member and the housing can be suppressed, and the temperature on the surface of the mobile terminal device can be made uniform, without significantly increasing the cost and the thickness of the mobile terminal device. In addition, high-performance electronic components can be used by adopting this structure. Furthermore, the rigidity of the circuit board can be raised, and the reliability of the mobile terminal device can be improved.

The invention discloses a household wall-mounted flat solar heat-pump water heater and a control method thereof. The household wall-mounted flat solar heat-pump water heater comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises a tube-wing heat collecting evaporator, a solar heat-pump compressor, a thermal expansion valve, a liquid storage device, a dry filter and an electromagnetic valve, wherein the tube-wing heat collecting evaporator is formed through integrating a heat collecting plate core of a flat solar heat collecting panel and an evaporator of a heat pump; the indoor unit comprises a controller, a heat-storage water tank and a coil tube type condenser which is arranged inside the heat-storage water tank; the operation of the flat solar heat-pump water heater is realized through controlling the compressor, the thermal expansion valve and the electromagnetic valve by the controller. Through the manner, the household wall-mounted flat solar heat-pump water heater has the advantages that various complicated, changeable and harsh working conditions of a solar heat collecting evaporator are overcome successfully, heat pump technologies can be applied to solar heat utilization, the efficiency is increased greatly compared with that of a solar water heater and that of an air source heat-pump water heater, and meanwhile, the problems that the flat solar water heater needs to be protected from frostbite in winter and the air source heat-pump water heater needs to be defrosted in winter are solved.

The stirring efficiency of a heating liquid which is supplied to the balloon of a balloon-equipped ablation catheter is increased to quickly uniformize the surface temperature of the balloon, and air is prevented from remaining in the balloon-equipped ablation catheter to enhance the safety of treatment which uses the balloon-equipped ablation catheter. A shaft for a balloon-equipped ablation catheter, consisting of a single pipe, wherein the shaft has two lumens which communicate from the distal end to the proximal end of the shaft, a first lumen being a guide wire passage lumen which is provided in order to allow a guide wire to pass therethrough, the second lumen being a liquid supply lumen which is provided in order to supply liquid to the inside of the balloon of the balloon-equipped ablation catheter.

The invention relates to a device and method capable of measuring liquid-liquid diffusion coefficient at different temperatures. In the invention, solution in different concentrations is injected into a micro fluid control chip 2 by inject pumps 1 and 5, concentration distribution of mixing runner in the micro fluid control chip 2 is measured by a Raman spectroscopy, and further liquid-liquid diffusion coefficient is inverted. The micro fluid control chip is placed on a soaking block 4, and the soaking block is connected with a metering pump 7 and a thermostatic waterbath 8, so as to realize measurement at different temperatures. The micro fluid control chip 2 realizes high-accuracy measurement by design of winding micro runner structure before mixing, mixing runner section designed as a rectangle with high crown proportion and aluminizing at the bottom of runner. The device and method of the invention can realize continuous measurement of liquid-liquid diffusion coefficient at different temperatures and has the advantages of less sample usage, low cost, non contact, high sensibility, high repeatability, high efficiency, small error, safety and reliability and easy operation.

The invention relates to a high-strength aluminum alloy section bar for a battery tray of a novel energy vehicle and a preparation method for the high-strength aluminum alloy section bar. Ingredient components are improved, and a gradient heating process is adopted for gradually reducing the temperature of a heated aluminum bar before extrusion from front to rear in the axial direction, so that temperature gradient is formed, and equal-temperature extrusion is realized; and the heated and processed product is uniform in core surface temperature, is bright in surface color and luster, and is small in mechanical performance deviation. The aluminum alloy section bar prepared by the preparation method has tensile strength of 310 MPa or higher, has yield strength of 270 MPa or higher, has elongation of 11% or higher, and greatly improves the product quality, so that the integral quality of the novel energy vehicle is improved.

A thermal processing roller includes a heat transfer medium flowing path therein and heats a member to be processed abutting against a surface of the roller or absorbs heat therefrom by heat transfer fluid flowing through the heat transfer medium flowing path, wherein a sealed chamber extending in a longitudinal direction of the roller and in which heat transfer medium of vapor-liquid two phases is sealed is formed within a thick portion of the roller.

The invention brings forward a pallet, which comprises: a pallet body; a plurality of mounting grooves which are arranged along the circumference of the pallet body; and a plurality of small pallets, each small pallet correspondingly being arranged in one mounting groove, werein the pallet body is composed of an insulating material and the plurality of small pallets are composed of a heat conduction and electrically conductive material. The invention also brings forward chemical vapor deposition equipment with the above pallet. According to the chemical vapor deposition equipment provided by the invention, as the turning radius of induced-current is becoming smaller, the surface temperature of the pallet is more uniform, thus raising temperature homogeneity of a substrate processed by the chemical vapor deposition equipment. In addition, the pallet is simply designed and is easy to realize.

An ink-jet printer device equalizes a surface temperature of a print medium on the platen. In an ink-jet printer device which includes a platen having heater blocks, and a carriage having non-contact type temperature sensors each measure a surface temperature of each of a plurality of portions of the print medium on the platen. A CPU calculates an output value of each of the heater blocks for making the surface temperature of each of the plurality of portions of the print medium uniform based on the measured surface temperature, and a heater drive PWM circuit controls an output of each of the heater blocks based on the calculated output value.

The invention relates to a substrate heating device and a substrate heating method. The device comprises a heating layer used for conducting heat, a transmission tube used for transmitting gas to a diffusion layer, the diffusion layer arranged on the heating layer and used for enabling the gas to be uniformly distributed between a lead-out layer and the heating layer, and the lead-out layer arranged on the diffusion layer and internally and uniformly provided with a plurality of through holes, wherein the through holes are used for leading out the gas in the diffusion layer to a lower side of a to-be-heated substrate, thereby enabling the to-be-heated substrate to be uniformly heated. Through the technical scheme of the invention, the to-be-heated substrate can be uniformly and comprehensively heated, so that the temperature of an upper surface of the to-be-heated substrate is more uniform and processes such as etching, depositing and/or sputtering performed on the to-be-heated substrate are enabled to achieve better effects.

A roll cover particularly suitable for a fuser roll has an intermediate layer on the roll body and an outer surface layer including heat transfer bodies therein. The intermediate layer is a graphite sheet having legs extending along the axial extent of the roll body. The outer layer has graphite fibers embedded therein, the graphite fibers extending axially with respect to the roll.

The invention discloses a thin steel wire atomizing cooling treatment method and a thin steel wire atomizing cooling treatment device. Steel wires of different steel numbers and diameters can be cooled simply by changing the ratio of cooling water to compressed air and the cooling capacity of a system instead of changing the cooling medium. Meanwhile, a two-stage segmental cooling method is adopted to ensure the temperatures of the core parts and surfaces of the cooled steel wires are more uniform, so the heat treatment performance of the steel wires is improved and the quality of the steel wires subjected to heat treatment is more stable. Therefore, when the method and the device are used, the process is simple, pollution is avoided, and cooling water can be utilized circularly; and the method can replace a high-temperature lead patenting process effectively.

The invention relates to the field of steel manufacturing, in particular to a banded structure control method, gear steel and a formula thereof. The banded structure control method comprises the stepsthat molten steel forms a casting blank through continuous casting by a crystallizer at constant pull speed; diffusion heating is conducted on the casting blank at the temperature of 1225-1255 DEG Ctill surface temperature and core temperature of the casting blank are even; and rolling of the down-pressing rate of 20%-30% is conducted on the casting blank obtained after diffusion heating at thetemperature of 1085-1205 DEG C. The continuous casting process, the diffusion heating process and the rolling process are controlled, austenite of the gear steel is fully deformed and homogenized fromthe surface to the core, and fine and even austenite particles are formed. Even-structure ferrite can be formed at the core and surface of the gear steel, and the banded structure is smaller than orequal to 2.0 grade.

The invention relates to an electrically heating shaft kiln and a production process for light-burned magnesia based thereon. The electrically heating shaft kiln comprises a shaft kiln, wherein the shaft kiln is divided into a preheating zone, a calcining zone and a cooling zone from top to bottom; electric heating elements are uniformly arranged in the kiln wall of the calcining zone along a circumferential direction and a height direction; the electric heating elements on a same cross section are connected in series to form a group of heating unit; electric heating elements in adjacent heating units in the height direction are staggerly arranged; electric heating elements in each group of heating unit are isolated by firebrick partition walls; the kiln wall located at the inner sides ofthe electric heating elements is provided with a silicon carbide plate; and a refractory material layer is arranged between the kiln wall located at the outer sides of the electric heating elements and a kiln shell. The electrically heating shaft kiln provided by the invention can produce both light-burned magnesia products with high purity and no pollution and CO2 by-products with high purity, and thoroughly overcomes the general problem of pollution caused by SO2, CO and NOx in the flue gas produced by traditional kilns while utilizing magnesite resources.