316results about How to "Reduce heating effect" patented technology

The invention relates to an electric car heat management system, in particular to a low-power-consumption heat management system of an electric car. The low-power-consumption heat management system comprises an electric compressor, a condenser, a refrigerant solenoid valve, a thermostatic expansion valve, an HVAC assembly, an electronic expansion valve, a cooler, a first expansion kettle, a thirdelectronic water pump, a fourth three-way valve and a third three-way valve. After the components are combined, a passenger compartment refrigerating cycle loop, a battery forced cooling cycle loop, abattery low-temperature heat radiation cycle loop, a passenger compartment heating cycle loop, a battery forced heating cycle loop, a battery waste heat utilization cycle loop, a battery temperatureequalization cycle loop and a motor cooling cycle loop are formed. According to the low-power-consumption heat management system, the situation that a PTC and the electric compressor are utilized forheating and cooling a battery can be effectively reduced, and therefore the whole car power consumption is reduced, and the driving mileage is increased.

The invention discloses a method for preparing a hollow steel ingot for a protection ring of a large power generator by adopting electroslag remelting. The method comprises the following steps: (1) preparing consumable electrode groups; (2) melting slag into liquid molten slag; (3) inserting the consumable electrode groups into an electroslag remelting hollow ingot crystallizer; (4) starting two transformers; (5) injecting the liquid molten slag into the electroslag remelting hollow ingot crystallizer; (6) when the consumable electrode groups are in contact with the liquid molten slag, forming an electrifying loop among fake electrodes, the consumable electrode groups and a bottom water tank; (7) when the liquid molten slag is in contact with an upper section, forming a loop among the upper section, the bottom water tank and the transformers connected with the bottom water tank; (8) adjusting the output currents and voltages of the two transformers; (9) when a metal melt is in contact with a molten steel liquid level detection device, starting an ingot stripping device for ingot stripping; (10) exchanging the consumable electrode groups; and (11) inserting subsequent consumable electrode groups into the liquid molten slag, and repeating the steps (8 to 10) until the ingot stripping is finished.

The invention discloses a magnesium alloy sheet with low Gd content and high ductility and malleability, and a hot rolling technology thereof, belonging to the technical field of metal materials. The magnesium alloy sheet comprises chemical compositions in percentage by weight: 0.9-2.1% of zinc, 0.2-0.8% of rare earth Gd, 0-0.9% of manganese, and the balance of magnesium. The rare earth Gd element is added in the magnesium alloy sheet, so that the cost of the alloy can be lowered, the magnesium alloy has excellent rolling property, and continuous multi-pass large-deformation rolling can be realized; the rolled sheet can be ensured to have non-basal plane texture and high room-temperature elongation, the room-temperature elongation can achieve 35-50%, wherein the elongation delta along the rolling direction is more than or equal to 35%, and the elongation in horizontal direction is more than or equal to 45%.

The present invention relates to method of extracting rosemary natural antioxidant from rosemary plant. The extraction process incldues distilling fresh rosemary plant to obtain resemary oil and material containing resemary antioxidant; crushing the material and adding food level organic solvent in a diffuser to extract rosemary leaching liquid; concentrating the resemary leaching liquid, supercritical extracting and high pressure separation to obtain extractive liquid; recovering solvent; spray or freeze drying to obtain yellowish antioxidant product. The said process obtains rosemary oil and antioxidant separately and has high yield and quality of antioxidant product.

The invention discloses a combined process method for producing clean diesel oil with a low condensation point. The method comprises the following steps: mixing a diesel oil raw material with hydrogen, orderly passing through at least two hydrogenation reaction zones connected in series, wherein in the material flowing direction, each hydrogenation reaction zone orderly comprises a hydro-upgrading catalyst bed layer, and a hydrodewaxing catalyst composite bed layer filled with a mixture of a hydrodewaxing catalyst and a hydro-refining catalyst; performing separation and fractionation of the reaction effluent from the last hydrogenation reaction zone to obtain the clean diesel oil product with a low condensation point, and a few light naphtha and liquefied gas products. The method of the invention reasonably combines and utilizes the temperature decrease of the hydrodewaxing process with the temperature increase of the hydro-refining and hydro-upgrading process, improves the diesel oil yield while producing diesel oil with a low condensation point and low sulfur, reduces the hot-spot temperature of the device, prolongs the running period, also reduces the cold hydrogen consumption or the combustion gas loss of a heating furnace, and saves operation cost.

The invention discloses an automatic film coating device comprising a machine body, a support frame, a substrate, a rotation device and a turnover device; wherein, the rotation device comprises a first driving device and a first transmission shaft connected with the first driving device; the turnover device comprises a second driving device and a second transmission shaft connected with the second driving device; the first driving device and the second driving device are adjacently fixed on the top of the machine body, and the first transmission shaft and the second transmission shaft are mutually parallel; one end of the support frame is rotatablely connected to the machine body, and the substrate is rotatablely connected to the support frame; the first driving device drives the first transmission shaft so as to drive the support frame to rotate horizontally, and the second driving device drives the second transmission shaft so as to drive the substrate to rotate vertically. The automatic film coating device of the invention can ensure that when one surface of a base wafer to be coated on the substrate finishes coating films, the other surface can perform film coating after automatic turnover without lowering temperature and breaking vacuum.

The invention relating to a vacuum plating device, which contains a vacuum chamber, a rotation supporting assembly, a substrate support lying in vacuum chamber and containing a few substrates and also connected to rotation supporting assembly, and a deposition source lying in the vacuum chamber and opposite the substrate support, further contains a turning device lying in the vacuum chamber and connected to substrate support, and a turning control device out of the vacuum chamber, with the turning device and turning control device, several substrates rotating horizontally in the vacuum chamber. With the invented plating device, no need of cooling and breaking vacuum after one surface of the substrate is coated, the heat-up and pump-down times decrease.

The invention discloses a protective film for chip cutting. The protective film sequentially comprises a releasing layer, a substrate layer and an adhesive layer, wherein the substrate layer is made of modified PO (propylene epoxide) material; the modified PO material is prepared by copolymerizing PP (polypropylene) and PE (polyethylene); the modified PO material is prepared from the following components in parts by weight: 50 to 70 parts of PP, 20 to 40 parts of PE, and 5 to 10 parts of talcum powder. The protective film has the characteristics that the substrate layer adopts the modified POmaterial, so that the mechanical strength is high, the halogen is avoided, and the environment-friendly requirement is met; the heat-resistant property is better, and the certain high-temperature operation requirement is met; the plasticizer is not contained, so that the risk of micromolecule segregation is avoided for the material; the material strength is high, the ductility is good, the uniformshrinkage rate in each direction is maintained under the condition of 140% of elongation rate, and the uniform strength in each direction is realized at the premises of certain elongation rate; the adhesive layer uses pressure-sensitive adhesive to replace the photo-sensitive adhesive and thermo-sensitive adhesive, the transparency degree is high, the weather-resistant property is high, TG is about -20 DEG C, and the procedures are simple (no UV (ultraviolet) furnace passing or reheating procedure); by performing simple laminating and separating, the product application requirement can be met, the change of viscosity duration is small and is less than 20%, and the residual adhesive is avoided.

The invention relates to a preparation method of a silane-modified polyether sealant, comprising the following steps: drying a filler, a thixotropic agent and a 3A molecular sieve respectively while the process conditions include: drying temperature 50-60 DEG C and drying time 40-60h; mixing the filler, the thixotropic agent and the 3A molecular sieve, and then adding silane-modified polyether resin, a plasticizer, a ultraviolet absorber, a light stabilizer and an antioxidant in sequence, uniformly mixing at a temperature of 50-60 DEG C, carrying out vacuum dehydration for 0.3-0.8 h and at thevacuum degree of 0.08-0.2 MPa; removing the vacuum, adding neutral alumina to obtain a mixed system, heating the mixed system to 70-75 DEG C, continuing vacuum stirring for 1-2h and at the vacuum degree of -0.08 to -0.2 MPa until the water content of the mixed system is reduced to 0.4%-1%; cooling the mixed system treated in the Step 3) to below 50 DEG C, adding a catalyst, a moisture scavenger and an adhesion promoter, uniformly mixing, and carrying out vacuum defoamation. The above preparation method can help prolong the shelf life of the silane-modified polyether sealant.