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140results about How to "Solve many problems" patented technology

Method for controlling non-metallic inclusions in steel

The invention discloses a method for controlling non-metallic inclusions in steel, and belongs to the field of steelmaking and refining control. Two-section calcium treatment and soft blow are adopted during the refining, and the calcium treatment and the soft blow are performed at the end of LF refining and RH vacuum treatment respectively, so that the non-metallic inclusions in a casting blank are classified into two types: 70 to 90 percent of non-metallic inclusions with CaS as main components, and 10 to 30 percent of oxide type non-metallic inclusions, wherein all the non-metallic inclusions in the casting blank are spherical; the particle diameters of all the non-metallic inclusions in the casting blank are controlled within a range of 0 to 5 microns; and the number of the non-metallic inclusions with the diameter of greater than 3 microns in the casting blank is controlled within the range of 0 to 5/cm<2>. Thus, the problem that the calcium aluminate type non-metallic inclusion produced after the calcium treatment cannot be discharged out of molten steel due to insufficient time, so the content of calcium aluminate type non-metallic inclusions in the casting blank is high is solved. The rejection rate caused by super-standard non-metallic inclusion of the low alloy structural steel is reduced.
Owner:SHOUGANG CORPORATION

Novel environment-friendly energy-saving curtain wall

The invention relates to a novel environment-friendly energy-saving curtain wall, which comprises a double-layer curtain wall system and a vertical greening system. The double-layer curtain wall system comprises curtain walls which are independently arranged as an inner layer and an outer layer, wherein each curtain wall is respectively composed of an aluminum alloy frame and glass, and the two layers of curtain walls connected with the aluminum alloy frame are provided with an air cavity in the middle; the vertical greening system is positioned in the air cavity between the two layers of curtain walls; a slotted aluminum plate is arranged at the bottom of the air cavity and is connected with the aluminum alloy frames in a sealing manner; and a layer of plant fiber which prevents moisture from losing is arranged at the bottom in a slot of the slotted aluminum plate, and soil filled with fertilizers covers the plant fiber and is used for plant growth. According to the novel environment-friendly energy-saving curtain wall, the vertical greening system is smartly introduced into the double-layer curtain wall system, moisture in the air cavity is increased by utilizing the transpiration effect of plants in summer, a small greenhouse is formed in the air cavity by using the photosynthesis of the plants to resist cold air in winter, oxygen released by the plants and filtered fresh air are conveyed into rooms all the year around, and therefore multiple problems existing in the curtain wall system are solved.
Owner:BEIJING NORMAL UNIVERSITY

Double-insertion type antitheft door

The invention discloses a double-insertion type antitheft door and relates to the field of antitheft safety doors. The double-insertion type antitheft door is mainly characterized in that an insertion lug is arranged at the position, corresponding to each doorframe insertion hole, of a doorframe buckled edge, an insertion lug gap is formed between each insertion lug and a doorframe, a double-insertion plate is arranged at the position, closely neighboring a door leaf side edge, inside the door leaf, the double-insertion plate is provided with liner plates in the mode that each liner plate corresponds to the corresponding insertion hole in the doorframe, a narrow-slit type insertion hole is formed between each liner plate and the double-insertion plate, the side edge of a panel inside the door leaf is provided with rectangular insertion holes in the mode that each rectangular insertion hole corresponds to the corresponding narrow-slit type insertion hole, the insertion lugs, the door leaf side edge, the double-insertion plate and the liner plates are each provided with an insertion hole in the mode of corresponding to the doorframe insertion holes, the five insertion holes which are correspondingly formed constitute a group, after the door leaf is closed, the insertion lugs are inserted into the rectangular insertion holes and the narrow-slit type insertion holes, the double-insertion plate is also inserted into the insertion lug gaps, the five insertion holes are all coaxial, lock tongues are inserted into the five concentric insertion holes correspondingly and used for locking the antitheft door, and the double-insertion type antitheft door is resistant to unclenching and damage.
Owner:BEIHUA UNIV

Power battery comprising high-voltage protector

The invention discloses a power battery comprising a high-voltage protector. The power battery comprises a high voltage power distribution system, a battery management system and a battery pack system, wherein a power input of the high voltage power distribution system is connected with a power output of the battery pack system through a connector, and a power output of the high voltage power distribution system is connected with a plurality of loads through a plurality of connectors. A power control terminal of the high voltage power distribution system is connected with a power control terminal of the battery management system through a connector, and a control input of the high voltage power distribution system is connected with a control output of a superior controller through a connector. The power battery system not only comprises the battery management system and the battery pack system, but also comprises the high voltage power distribution system, so that the problem of multiple wire harnesses is effectively solved, the integration level of the power battery is improved, and the size of the power battery can be smaller. The power battery has the functions of loop protection, pre-charge, and overcurrent protection. The power battery also has a real-time maintenance switch, so that the safety of workers can be ensured during the battery maintenance.
Owner:成都易默生汽车技术有限公司

Process for smelting common silicomanganese alloy by smelting electric furnace to quickly convert high-silicon silicon-manganese alloy

InactiveCN112430755AImprovement of quality delivery rateSolve many problemsSmelting processManganese
The invention discloses a process for smelting common silicomanganese alloy by a smelting electric furnace to quickly convert high-silicon silicomanganese alloy, which belongs to the technical field of ferroalloy production, and particularly relates to a process for smelting different varieties of silicomanganese alloys to solve the problems of a long transition period and more transition productsof the common silicomanganese smelting high-silicon silicomanganese alloy. The process comprises the following steps of: (1) proportioning; (2) preparing before transition smelting; (3) adjusting thecoke type; (4) ensuring that the high-silicon silicon-manganese material can enter the smelting electric furnace at the same time one day before transition smelting; (5) making the basicity of the slag in the transition period of transition smelting to be 1.1 times of the basicity in the conventional transition smelting process; (6) enabling tapping time to be not shorter than 40 min; and (7) dephosphorizing outside the smelting electric furnace, adding lime powder or fluorite powder when the liquid level of slag iron in the ladle reaches 1 / 3, and stopping adding until the P component in thehigh-silicon silicomanganese alloy reaches the standard. The transition period of transition smelting is shortened to be within one day, the alloy quality cashing rate is increased by 20% or above, the recovery rate is increased by about 2%, transition products are few, and various consumptions are greatly reduced.
Owner:嘉峪关宏电铁合金有限责任公司

Wet-type sintering desulfurization flue gas deep purification device

Belonging to flue gas purification devices, the invention especially discloses a wet-type sintering desulfurization flue gas deep purification device, i.e. a device using the wet-type sintering desulfurization flue gas purification technology. The purification device includes a shell that is installed at the upper part of a desulfurization tower and is a part of the desulfurization tower body. The device is characterized in that: the inside of the shell is equipped with vertically mounted precipitation anode tube bundles and corona electrodes. The precipitating electrode tube bundles are supported by tube bundles inside the tower and fixed in the shell. The upper and lower ends of the corona electrodes are respectively connected to corona electrode small beams at the upper side and lower side of a corona electrode large beam, two ends of which are hung on a hanging rod in a side tube. A flushing instrument and an upper gas chamber are disposed over the precipitation electrode, the lower part of the shell is equipped with a gas distribution instrument, and a lower gas chamber is disposed between the precipitation electrode and the gas distribution instrument. A tower body platform outside the shell is provided with insulation boxes and transformers. The device can effectively remove micro-fine dust, acidic fog drops, nitrogen oxides, heavy metals, sulfates and other harmful substances from flue gas, and the removal rate can reach over 90%.
Owner:SHANDONG GUOSHUN CONSTR GRP

Manufacturing technology of japonica rice wine

The invention relates to a manufacturing technology of a japonica rice wine. The manufacturing technology of the japonica rice wine comprises the following steps: (1) soaking rice; (2) cooking rice, and cooling the rice; (3) dosing materials for the first time for fermentation; (4) dosing materials for the second time for fermentation; (5) implementing post-fermentation; (6) squeezing, boiling wine, and filling the wine in jars. In the manufacturing technology of the japonica rice wine, the rancidity of the fermented mash is prevented effectively by utilizing an active dry yeast and a twice-dosing method. A quick brewing yeast is replaced by the active dry yeast for the fermentation, thereby avoiding bacteria contaminations caused by the brewing yeast. The twice-dosing method is employed; all the yeasts are added during the first dosing, thus the inoculum size is increased by comparing to a once-dosing method. The inoculum size is up to 1.4-1.6%o. Accordingly, the yeasts are superior in numbers. The yeasts are provided with new nutrition during the second dosing, thereby expanding the cultivation effect, generating more new yeast cells, preventing the yeasts from aging, and keeping a strong fermenting ability of the yeasts. Accordingly, the growth of infectious microbes can be inhibited effectively.
Owner:绍兴国家黄酒工程技术研究中心有限公司

Production process of polished round-grained rice red wine fermented in great tank

The invention relates to a production process of polished round-grained rice red wine fermented in a great tank, belonging to the technical field of yellow rice wine brewing. The production process comprises the following steps: soaking rice; steaming rice and cooling; dropping the rice into a tank; pre-fermenting, namely starting harrowing for the first time 8-10 hours after dropping the rice into the tank, adding 100000 U saccharifying enzyme and 50000U acid protease in a certain proportion while harrowing for the first time, then starting harrowing once every two hours, controlling the highest product temperature to be no more than 33 DEG C, introducing chilled water to cool fermenting mash; after the primary fermentation is ended, gradually lowering the product temperature to 15-17 DEG C, feeding the product into a post-fermenting tank to ferment after fermenting for 4 days in the pre-fermenting tank; performing post-fermenting; squeezing, carrying out sterilization and filling the wine into jars. According to the production process disclosed by the invention, the rice is soaked for a short time, various enzyme preparations and activators are added, and high-temperature saccharifying yeast wine is used for fermenting, so that the problems that the fermented mash is pasted and has many bubbles.
Owner:绍兴国家黄酒工程技术研究中心有限公司

Sisal hemp fiber and polypropylene fiber mixture interior ornament material of vehicle

The invention provides a sisal hemp fiber and polypropylene fiber mixture interior ornament material of a vehicle. First, Sisal hemp is cut into sisal hemp fiber with 5 to 7 cm; second, the sisal hemp fiber is put into a stainless steel container and is mixed with sodium hydroxide solution to soak and stir for 1 hour; third, the sisal hemp fiber is cleaned with clear water for removing sodium hydroxide and then the sisal hemp fiber is put into hot water with 30 to 60 temperature so as to removing residual sodium hydroxide with constant temperature bath; fourth, the sisal hemp fiber is dried by a dryer; fifth, mixed liquid of methyl methacrylate of 0.5 to 1 percent blended with clear water every 100kg and nitric acid ene ammonium of 0.5 to 0.1 percent is used to soak for reaction; sixth, the sisal hemp fiber is dried after being cleaned with clear water; seventh, the sisal hemp fiber and polypropylene fiber are put on a wool comber for opening mixture; the sisal hemp fiber is within the range of 60 to 70 percent and the polypropylene fiber is within the range of 30 to 40 percent; eighth, the sisal hemp fiber and the polypropylene fiber mixture is carded to be a net by a carding machine; ninth, the sisal hemp fiber and the polypropylene fiber mixture is spread to be mixture material with 1500 g per square meter by a parallel net-spread machine; and tenth, the mixture material is molded into an interior ornament type part by a mould-pressing molding machine.
Owner:湖北南泽汽车复合材料有限公司

Substrate material capable of adjusting moisture and manufacturing method of substrate material

The invention discloses a substrate material capable of adjusting moisture and a manufacturing method thereof, and discloses a substrate material for painting indoor walls of buildings. The substrate material contains sintered and non-sintered diatomite ingredients and auxiliary materials, such as gypsum, limestone, wood fiber, carclazyte, anti-mildew algicide, hydroxypropyl methylcellulose and powdered resin, and the like. The method is simple and easy to implement. Since having reasonable material proportion, the substrate material has strong crack resistance, adhesion, abrasion resistance, moisture absorption and moisture releasability; the root cause is as follows: the diatomite is used as the main raw material; since the diatomite is porous and has big specific surface area, the diatomite can store moisture and has excellent moisture retention; the moisture can be released in dry condition. Since having wood fiber and powdered resin, and the like, the crack resistance and abrasion resistance are strengthened; the fastness of the substrate material to a wall surface is improved. Moist and mildew can be effectively avoided by adding the anti-mildew algicide, and thus indoor environment is more environment friendly. The substrate material capable of adjusting moisture is ideal, and solves the problems of the existing substrate material.
Owner:营口盼盼硅藻材料集团有限公司
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