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693results about How to "Effective temperature control" patented technology

Heat-conducting thermosetting molding composite material and application thereof

The invention discloses a heat-conducting thermosetting molding composite material and application thereof. The heat-conducting thermosetting molding composite material comprises the following basic components in percentage by weight: (1) 15-65% of thermosetting matrix resin; (2) 20-80% of heat-conducting filler with a thermal conductivity greater than 1 W/m.DEG C; and (3) other additives, such as a toughening agent, an enhancer, a stabilizer and the like. The invention also discloses application of the heat-conducting thermosetting molding composite material in manufacturing LED (light emitting diode) lighting heat-radiation components. The molding temperature of the composite material can be controlled to below 220 DEG C that is the general soldering operation temperature, so that the assembly process of an LED lamp and a heat radiator and the molding process of a thermosetting material heat radiator can be integrated, and the substrate surface or heat-conducting metal support of the LED lamp can be directly connected with the heat-conducting material; and the molding die of the composite material and auxiliary systems thereof have the characteristics of effective heat insulation and temperature control and easy cleaning, and can effectively lower the processing and manufacturing cost of the LED lamp and improve the heat radiation capability of the LED heat radiator, thereby reducing the operating temperature of LED devices.
Owner:HEFU NEW MATERIAL TECH WUXI

Mass concrete-based temperature field research method and temperature control method

The invention discloses a mass concrete-based temperature field research method and a mass concrete-based temperature control method. The research method comprises the following steps of: establishinga mass concrete entity research object; measuring temperatures, in a pouring process, of a plurality of measurement points of the entity, and drawing corresponding temperature change curves to obtaintemperature field characteristics and a temperature change law; establishing a finite element analysis model according to the entity research object and automatically calculating temperatures of thecorresponding measurement points; adjusting temperature field calculation parameter of the model through comparing the calculated temperature values of the model with the actually measured temperaturevalues; and finally adjusting influence factors influencing hydration heat in a mass concrete model, carrying out analysis to obtain an influence result and an influence law, and adopting a corresponding temperature control method according to the result and the law. According to the mass concrete-based temperature field research method and the mass concrete-based temperature control method, fissures are prevented from occurring in mass concrete, and the pouring quality of concrete and the total quantity of projects are ensured.
Owner:CHINA RAILWAY 12TH BUREAU GRP +1

Abyssal environment simulation device suitable for testing material corrosion behavior

InactiveCN103196819AEasy to useDissolved oxygen content stable controlWeather/light/corrosion resistanceHydraulic pumpNitrogen gas
The invention provides an abyssal environment simulation device suitable for testing material corrosion behavior. The abyssal environment simulation device comprises a high pressure autoclave, a hydrostatic pressure control system of simulated abyssal environment and a simulated environment monitoring control system. The hydrostatic pressure control system of simulated abyssal environment comprises a nitrogen cylinder, an oxygen cylinder, a water tank, a liquid supply tank and a hydraulic pump, artificial sea water is stored in the water tank, a water pump injects the artificial sea water into the liquid supply tank, the nitrogen cylinder and the oxygen cylinder are connected with the liquid supply tank, and the hydraulic pump is connected between the liquid supply tank and the high pressure autoclave so as to inject the artificial sea water meeting the dissolved oxygen content into the high pressure autoclave; the simulated environment monitoring control system comprises a compound sensor, a working electrode, a reference electrode, a temperature control device, a singlechip signal processor and a computer. The abyssal environment simulation device can simulate the characteristic environment parameters, such as the hydrostatic pressure, the environment temperature, the dissolved oxygen content, the pH value, the flow rate and the salinity, of the corrosive medium for the material in the abyssal environment, and is used for testing the related corrosion electrochemistry behaviors of the material in the simulated abyssal environment.
Owner:三亚哈尔滨工程大学南海创新发展基地

Method for controlling temperature of steelmaking melting pool of converter by blowing CO2 gas

The invention discloses a method for controlling temperature of a steelmaking melting pool of a converter by blowing CO2 gas, which belongs to the filed of convertor steel making and relates to a converter dephosphorization technology. The invention sprays CO2 gas (or mixed gas of CO2-O2) into the melting pool of the converter and realizes the smooth temperature increase of the melting pool by regulating the proportion of V[CO2] / (V[O2]+V[CO2]). The proportion of V[CO2] / (V[O2]+V[CO2]) is controlled at 10%-100% at the early and middle stages of melting (3-5min), the total flow rate of the blowing gas is 100-80000Nm / h, bottom blowing and strong stirring are adopted at this time, and the temperature is controlled between 1300 DEG C and 1400 DEG C. The proportion of V[CO2] / (V[O2]+V[CO2]) is adjusted and controlled at 10%-50% at the middle stage of melting according to desilication and dephosphorization situation and the temperature of the melting pool, and the flow rate of the blowing gas is 100-80000Nm / h. The method is applicable to the converter steel making of 30-300 tons, the dephosphorization rate can achieve 85%-95% by adopting the method, and the rephosphorization rate after slag dumping is lower than 3%.
Owner:UNIV OF SCI & TECH BEIJING

Apparatus for mixing viscous material

ActiveUS20070159919A1Promote heat exchangeConstant thickness and widthLiquid degasificationFlow mixersImpellerEngineering
An apparatus for mixing viscous material includes a chamber having a cylindrical sidewall and a bottom and receiving viscous material to be mixed; a cylindrical draft tube fixed at an inside center of the chamber to be spaced from the bottom and the sidewall and forming a space between the draft tube and the sidewall to allow passage of the viscous material, and including a heat medium passage therein; a carrying impeller installed in the draft tube and driven by a motor to transfer the viscous material above or below the draft tube and suck the viscous material in the space into the draft tube; and a sweeping impeller installed in the space and rotated in a circumferential direction by a motor to apply a pressure to the viscous material so that the viscous material in the space is not adhered to the draft tube and the sidewall.
Owner:LG CHEM LTD

Improved type side-blowing molten pool smelting furnace

The invention provides an improved type side-blowing molten pool smelting furnace. The improved type side-blowing molten pool smelting furnace comprises a long round furnace body, a furnace cylinder, a furnace top, a furnace body frame structure and a plurality of multi-channel spray guns. The multi-channel spray guns are arranged on the two sides of the long round furnace body correspondingly. The long round furnace body is formed by a furnace body protective plate in an enclosed mode. A water sleeve is installed on the lower portion of the inner side of the furnace body protective plate. A first firebrick layer is further inlayed in the inner side of the water sleeve. A second firebrick layer is arranged on the water sleeve and the first firebrick layer and installed on the inner side of the furnace body protective plate. The furnace cylinder is arranged at the bottom of the long round furnace body. The long round furnace body is provided with a metal discharge outlet and a slag outlet. The furnace body frame structure comprises steel vertical pillars, cross beams and pulling rods. The multi-channel spray guns are arranged on the two sides of the middle straight segment of the long round furnace body, and the output ends of the multiple multi-channel spray guns extend into the long round furnace body. By means of the improved type side-blowing molten pool smelting furnace, the problem that in the prior art, the temperature in a molten pool smelting furnace is difficult to control can be solved.
Owner:CHINA ENFI ENGINEERING CORPORATION
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