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1745results about How to "Strong" patented technology

High-performance sand-soil consolidation material, as well as preparation method and using method thereof

The invention relates to a high-performance sand-soil consolidation material, as well as a preparation method and a using method thereof. The high-performance sand-soil consolidation material belongs to a mortar composition and is characterized by comprising the following raw materials in parts by weight: 5-40 parts of cement clinker, 3-6 parts of gypsum, 4-10 parts of alkali additive, 0.5-6 parts of compound activating agent, 1-4 parts of early strength agent, 2-10 parts of mineral activating agent, 3-8 parts of expansion agent and 22-77 parts of micro-powder formed by fine grinding of blast furnace water-quenched slag. The invention provides the high-performance sand-soil consolidation material which has the advantages of simple operation, convenient construction, good water resistance, fast consolidation, high early strength, stable improvement of post-strength, resistance to erosion of underground inorganic salt water, excellent anti-seepage performance and low production cost, as well as the preparation method and the using method thereof. The high-performance sand-soil consolidation material is suitable for consolidating mine tailings, natural weathered sand, fly ash, gravel, stone chips, stone powder, soil, sludge, construction waste, coal gangue and phosphorus slag into a solid material, and can be used for laying a subgrade, constructing a wall body and constructing a site foundation.
Owner:淄博乾耀固结材料有限公司

Asphalt base composite material for pavement crack repair

The invention discloses an asphalt base composite material for pavement crack repair. The asphalt base composite material for pavement crack repair is prepared from a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 120-150 parts of anionic emulsified asphalt, 1-3 parts of water reducing agent, 1-3 parts of defoaming agent, 3-8 parts of binder and 0-10 parts of water, and the component B comprises the following raw materials in parts by weight: 100 parts of cement, 70-110 parts of sand and 0.01-0.06 part of expanding agent. The asphalt base composite material for pavement crack repair has the flexibility of asphalt, the rigidity of cement and certain strength, is used for crack pouring and can bear and transfer loading force; the binder is added to the material so as to play a role of reinforcing the binding force between the material and crack walls, so that the service life of a pavement is prolonged, and the re-cracking phenomenon is difficult to occur. The asphalt base composite material for pavement crack repair has the advantages of low cost price, simple construction, low requirements on constructors, low energy consumption, low cost, strong binding power and long useful life and can be widely applied to the pavement crack repair.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Soft soil foundation treated by chemical-solution-combined injection electroosmosis method and construction method of soft soil foundation

The invention provides a soft soil foundation treated by chemical solution-combined injection electroosmosis method and a construction method of the soft soil foundation, and belongs to the technical field of processing of the soft soil foundation. A metal electrode is inserted into the soft soil foundation; different chemical solutions are injected into a positive electrode and a negative electrode respectively, and a direct current is fed; under a direct current field, water and a cation solution which have positive charges flow towards the negative electrode, and an ion solution with negative charges flows towards the positive electrode so as to form electroosmosis chemical reaction; at the same time, the water is pumped and discharged from the top of the negative electrode so as to reduce the water ratio in the soil, accelerate concretion and compaction of the soil, and enhance the strength of the soil; and precipitates produced by the chemical reaction can cement the soil particles. Compared with other soft soil foundation treatment methods, the construction method has the advantages of more environment friendliness, lower energy consumption and saved treatment cost, and large-size mechanical equipment and building materials such as cements, sand, stones and the like are not required. By the method, the construction process is simple, the operability is high, the quality is convenient to control and detect, and the intensity of the soil is enhanced obviously.
Owner:HOHAI UNIV

System and method for carrying out CARS (Coherent anti-Stokes Raman Scattering) imaging by using four-wave mixing signals generated by optical fiber

The invention relates to a system and method for carrying out CARS (Coherent anti-Stokes Raman Scattering) imaging by using four-wave mixing signals generated by optical fiber. The system comprises a laser source, multiple reflecting mirrors, an optical parametric oscillator, a precise displacement platform, two long-wave-pass dichroscopes, a coupling objective lens, optical fiber, a two-dimensional scanner, a focusing lens, a supporting sleeve, a sample, a band-pass filter, an imaging lens, a detector and a computer. A light beam which is output after the laser source sends a frequency-doubling light beam for pumping the optical parametric oscillator, and a base-frequency light beam sent by the laser source are respectively pumping light and Stokes light for CARS imaging, and the four-wave mixing signals which are excited after the pumping light and the Stokes light are overlapped on time and space and then transmitted in the optical fiber are probe light for CARS imaging. CARS signal light which is generated after the pumping light and the Stokes light are focused on a sample are not overlapped with the frequency of the pumping light and the frequency of the Stokes light and can be separated by the long-wave-pass dichroscopes. Relative to the standard CARS system, the system disclosed by the invention is not newly provided with any device, has no special requirement on the used devices and is simplified in system and saved in cost.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Ring forging and rolling processing method of bearing ring parts used for large-scale wind turbine unit

The invention discloses a ring forging and rolling processing method of bearing ring parts used for a large-scale wind turbine unit. The technical scheme of the invention is that the processing method comprises the following steps: (1) blanking; (2) heating by a first heating number; (3) forging and making a blank forming; (4) heating by a second heating number; (5) chambering and reforming; (6) heating by a third heating number; (7) carrying out diameter expansion and ring rolling; (8) cutting two connected bearing ring part workblanks which are obtained in the step (7) to obtain a single workblank; and (9) thermally treating: normalizing, quenching and tempering. The processing method disclosed by the invention has the following beneficial effects: compared with the prior art, four heating numbers are decreased to three heating numbers; two ring parts can be obtained by one-time rolling and expanding processing through the improvement of a mold, so that the production efficiency is improved, the cost is lowered, and good combination property of a flange is ensured; and the bearing ring parts processed by the processing method of the invention have high strength, good hardenability, strong toughness, small deformation in the quenching, and stronger creep strength and persistent strength at the high temperature, and are applied to a large-scale wind turbine unit in a severe environment.
Owner:SHANDONG IRAETA HEAVY IND

Pearlite thermal-insulating fireproof board for exterior wall of building

The invention relates to a pearlite thermal-insulating fireproof board for the exterior wall of a building, which has the advantages that the fireproof performance is improved, the heat conducting coefficient is reduced and the flexibility and the strength are enhanced; and the requirements on the thermal-insulating performance of the exterior wall of the building are well satisfied, the energy is saved by 65 percent and the A-degree fireproof requirement is satisfied. The pearlite thermal-insulating fireproof board is made of the following raw materials by volume weight per cubic meter of products: 80-120kg of light modified expanded pearlite with volume weight per cubic meter being 65kg, 3-5kg of modified hollow beads with volume weight per cubic meter being 110kg, 2-6kg of 200-mesh sodium bentonite, 0.3-1.5kg of silica aerogel particles, 0.5-2kg of reinforced polypropylene (PP) fibers, 1-3kg of ceramic fibers, 0.3-1.5kg of asbestos wool, 20-30kg of inorganic modified water glass adhesive, 3-5kg of polyvinyl acetate adhesive, 0.5-3kg of modifier, 1-3kg of water repellent and 0.5-2kg of silicon aluminum powder, wherein the total percent of the volume weight per cubic meter of products is 100 percent. The pearlite thermal-insulating fireproof board is made through agitating, pressing, demolding, forming and drying processes. The coefficient of heat conductivity is as low as 0.045W / m.K.
Owner:LUOYANG SENHAO IND & TRADE

Manufacturing method of carbon fiber composite material rectangular hollow pipe for mechanical arm

ActiveCN103587124APrecise porosity controlReduce porosityTubular articlesFiberThermal expansion
The invention provides a manufacturing method of a carbon fiber composite material rectangular hollow pipe for a mechanical arm, and the obtained rectangular hollow pipe. A carbon fiber composite material serves as a raw material and is carbon fiber prepreg; the prepreg comprises one-way and fabric prepregs and the rectangular hollow pipe is manufactured by a mould pressing inflation forming method. According to the manufacturing method of the carbon fiber composite material rectangular hollow pipe, a rectangular thin-walled hollow pipe is manufactured by performing mould pressing inflation combined forming on the carbon fiber prepreg serving as the raw material. Compared with the prior art, the invention has the advantages that the carbon fiber composite material rectangular hollow pipe has high bearing capacity, high rigidity and light weight; during operation, the arm is more stable in action and moves and stops more quickly; the arm can be quickly positioned by the vibration damping characteristic of the carbon fiber composite material; the carbon fiber composite material is applicable to precision equipment due to the zero thermal expansion coefficient; equipment investment is small; a mould is simple to manufacture; production energy consumption is low; production period is short; automatic production is realized.
Owner:HENGSHEN

Environment-friendly and decorative nail-free glue and preparation method thereof

The invention belongs to environment-friendly and decorative glue, particularly relates to environment-friendly and decorative nail-free glue and a preparation method thereof. The environment-friendly and decorative nail-free glue comprises the following components: 5.0 to 20.0 percent of rubber elastomers, 10.0 to 30.0 percent of tackifying resin, 15.0 to 35.0 percent of reinforcing fillers, 2.0 to 8.0 percent of a thixotropic agent, 10.0 to 40.0 percent of a solvent and 0.1 to 1.0 percent of anti-oxidant; the preparation method of the environment-friendly and decorative nail-free glue comprises the following steps: putting the solvent into a high-speed stirrer, sequentially adding the rubber elastomers and the tackifying resin after a stirrer is started, stirring for 2 to 8 hours until all materials are dissolved to be a uniform liquid, then slowly adding the enhancing fillers and stirring uniformly so as to prepare a flowable slurry mixture, then adding the thixotropic agent and the anti-oxidant, and stirring uniformly so as to prepare the environment-friendly and decorative nail-free glue. The environment-friendly and decorative glue provided by the invention is environmental-friendly, is convenient to use, has high product bonding intensity and is excellent in durability.
Owner:GLEIHOW NEW MATERIALS CO LTD

Bipolar plate structure of proton exchange membrane fuel cell, fuel cell stack and control method thereof

PendingCN107546393ASimple and novel structureReduce process complexity and stack manufacturing costFuel cell heat exchangeCell electrodesCorrosionMembrane configuration
The invention relates to a bipolar plate structure of a proton exchange membrane fuel cell, a fuel cell stack and a control method thereof, and belongs to the technical field of proton exchange membrane fuel cells. By use of an air cooling and liquid cooling integration bipolar plate, an auxiliary cooling system is simplified, and the uniformity of temperature distribution in the stack is improved; meanwhile, quick cold starting under a low temperature condition is easy to realize; by introduction of graphene into a bipolar plate material, the conductivity of the bipolar plate can be improved;a runner of a cathode plate flow field adopts a periodical gradual-change section, so that oxygen partial pressure on the surface of a three-phase reaction region can be increased; a porous gas diffusion layer has the gradient dewatering capacity in the gas flowing direction, so that the stability of the fuel cell stack is improved; a cathode reinforcing layer of a porous meshed structure is relatively high in intensity, relatively high in conductivity and excellent in corrosion resistance; the power and the stability of the stack are improved, and the service life of the stack is prolonged.
Owner:南京攀峰赛奥能源科技有限公司

Method for producing Chinese herbal medicine health-care dark eggs

The invention relates to a method for producing Chinese herbal medicine health-care dark eggs. The method comprises the following steps: (1) taking bear gall powder, western safflower and the like to form a Chinese herbal medicine composition; (2) adding the above Chinese herbal medicine composition into a feed, mixing evenly and forming a mixed feed, wherein, the addition quantity is the weight ratio of 5-20:100 of the Chinese herbal medicine composition to the feed; and (3) feeding laying Taihe chicken with the mixed feed and laying eggs after feeding for 7 days, namely, the Chinese herbal medicine health-care dark eggs. The produced dark eggs contain abundant proteins, amino acids, vitamins, selenium, DHA and various famous and precious Chinese herbal medicine components, have abundant nutrition, strong medicine potency and obvious curative effect, have the effects of strengthening the spleen and the kidney, tonifying the liver, nourishing the stomach, supplementing qi, tonifying the blood, nourishing yin, reducing fever, smoothing collaterals, promoting blood circulation and the like, and have a favorable food therapy effect for preventing and treating diabetes, hypertension, hemiplegia, apoplexy sequelae, cardiovascular and cerebrovascular diseases and all classes of cancers.
Owner:郭伟光
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