109results about How to "No erosion" patented technology

The invention is a case expanding anchor shank, composed of case expanding anchoring head, anchor shank body, supporting backing plate, fastening nut, washer, and connecting pipeline, where the anchoring head is composed of inner wedge and two clamp pieces, the clamp pieces are fixed in the open slots on two sides of the inner wedge, the lower part of the inner wedge is connected with the anchor shank body, two sides of the top of the inner wedge have the open slots with inclined wedges in the middle of the top, forming double-face wedge sliding slots; the insides of the clamp pieces have inclines to cooperate with the inclined wedges, respectively. The anchor shank is installed and can rapidly form shoring anchoring force, to control rock mass deformation, both acting as permanent both temporary shoring and can be applied to shoring on most conditions of lithoid surrounding rock.

The integration methods include following integrated parts: method for manufacturing PMOS of epitaxial growth of source and drain poles on silicon germanium by using interval layer of oxide and hard mask of polysilicon as mask; method for manufacturing NMOS of epitaxial growth of source and drain poles on silicon carbon; and removing hard mask safely. The method produces strain source and drain CMOS with interval layer of oxide.

The invention discloses a preparation method of a quick absorption saturation gelation seaweed hemostatic dressing. The method includes the steps of: soaking, rinsing and drying on calcium fiber textile or non-woven products containing alginate, and the carrying out cutting, packaging and sterilizing to obtain the quick absorption saturation gelation hemostatic dressing. The invention also discloses the application of the quick absorption saturation gelation seaweed hemostatic dressing prepared by the above method. The invention is applicable to rapid absorption and removal of a large amount of surgical diffusate in surgical operation process, so as to realize the effects of rapid hemostasis and operation wound clean; the hemostatic dressing is used for burn, scald and other acute and chronic wounds, can cover the wound and prevent moisture loss in body fluids, provide a positive moist environment for wound healing, prevent the wound from effusion and erosion, isolate bacterial infection, and play the effects of stopping bleeding, relieving pain, promoting wound healing, and reducing scar.

The invention discloses a compound probiotic functional food capable of inhibiting helicobacter pylori. The compound probiotic functional food capable of inhibiting helicobacter pylori comprises 20-40parts of prebiotics, 20-30 parts of bacillus bifidus flora, 10-20 parts of bacillus acidophilus, 5-10 parts of lactobacillus casei, 5-10 parts of lactobacillus reuteri, 3-8 parts of lactobacillus paracasei, 3-8 parts of lactobacillus gasseri and 5-10 parts of lactobacillus rhamnosus. A preparation method of the compound probiotic functional food capable of inhibiting helicobacter pylori comprisesthe following steps: performing pretreatment on raw materials, namely putting weighed raw materials into a dry mixer so as to be subjected to uniform mixing; putting the mixed materials into a tabletmachine and performing tablet compression so as to obtain tablets, or directly weighing and bagging the mixed materials; and then, carrying out laboratory testing, and warehousing qualified productsso as to obtain finished products. The compound probiotic functional food capable of inhibiting helicobacter pylori solves the problem of existing functional foods, namely insufficient inhibition on helicobacter pylori production and spread of helicobacter pylori due to lack of variety of bacterial flora and unscientific proportion.

The invention belongs to the technical field of coating and particularly discloses an aqueous antimicrobial coating and a preparation method thereof. The coating is composed of a normal-temperature self-crosslinking multifunctional modified acrylic ester copolymer emulsion, an organic antibacterial and antifungal agent, an inorganic antibacterial and antifungal agent, a wetting dispersant, a PH adjustor, a defoamer, a coalescing agent, a hydrophobic modified nonionic polyether rheology modifier, a swelling anion hydrophobic modified alkali, a dye, a filler and water. By adopting the aqueous antimicrobial coating, the microorganism corrosion can be prevented, particularly the growth of the microorganisms and the algae in the film after forming the film can be inhibited for a long time, various microorganisms and algae of the film can be killed and resisted from external erosion and the film has the function of preventing the erosion of the microorganism and the algae. The aqueous antimicrobial coating is convenient to use, beautiful in film, strong in decorativeness, low in toxin, high in antibacterial rate and good in mildewproof effect. The aqueous antimicrobial coating can be applied to the warm humid building inner wall and outer wall, the ceiling and the ground and also can be applied to the public places with high sanitary requirement such as the hospital, the hotel, the office and the restaurant.

The invention discloses a copperizing solvent and a preparation method thereof, belonging to the technical field of powder metallurgy. The copperizing solvent comprises the following components in percentage by weight: 0.5-10% of one or a plurality of Fe, Zn, Mn, Sn, P and Cr, and 90-99.5% of Cu The preparation method is as follows: weighting raw materials at ratio, adding ceramic balls or stainless steel balls and diffusion accelerating agent; after mixing, sending powder into a hydrogen reduction furnace for diffusion at the diffusion temperature of 300-1000 DEG C for 0.5-25h; cooling, discharging, breaking, screening and collecting; and adding lubricant for blending. The copperizing solvent prepared with the preparation method has the characteristics of favourable forming property, high infiltration efficiency, no erosion and small residue and obviously improves material density and mechanical property. The method has simple flow, required equipment is easy to operate and the coppering solvent can be produced in batch.

The invention discloses a lightning arrester of an insulator for a power supply line, in particular relates to an outer-gap lightning arrester. The outer-gap lightning arrester is characterized in that an upper metal tool is provided with a pressure adjustment element, a conductive band, a zinc oxide resistance card, an inner discharge electrode, an insulating gasket and an outer discharge gap rod, wherein a thread upper part of an lower end metal tool is provided with an outer discharge gap sheath, and the shape of the outer discharge gap rod is drooping. The outer-gap lightning arrester disclosed by the invention has the advantages: a tiny residual voltage is introduced into the earth and the protection process of electric equipment is finished when the outer discharge gap rod generated by lightning discharges to the outer discharge gap sheath; therefore, the investment cost and the maintenance cost are reduced; the outer-gap lightning arrester is not influenced by the climatic environment, the atmospheric pollution and the geological conditions; the zinc oxide resistance card is not corroded, and the service life is long; the product made of a silicon rubber material has the advantages of lightness, portability, good insulation property, long creepage distance, convenience for construction, reduced labor intensity and safety, stability and reliability for operation. The lightning protection level of the power supply line is improved, and good effects of small investment, large yield, free-maintenance and over 98% of effective protection probability are achieved.

The invention discloses a two-stage organic Rankine cycle power generation system utilizing exhaust heat of a gas turbine. The system comprises a gas compressor (1), the gas turbine (3), a high-temperature steam turbine (11), a low-temperature steam turbine (15) and a power generator (18), wherein the gas compressor (1) is connected with a combustion chamber (2) through a pipeline; the combustion chamber (2) is connected with the gas turbine (3) through a pipeline; the gas turbine (3) is connected with a waste heat boiler (4) through a flue gas pipeline; the waste heat boiler (4) is connected with the high-temperature steam turbine (11) through a high-temperature organic Rankine cycle system (19) and connected with the low-temperature steam turbine (15) through a low-temperature organic Rankine cycle system (20). Through combined use of the high-temperature organic Rankine cycle system and the low-temperature organic Rankine cycle system, gradient utilization of flue gas waste heat of the gas turbine is realized.

A processing method of a cotton and silk interweaving fabrics comprises the following five steps: (1) singeing (2) desizing (3) liquid ammonia (4) sizing (5) preshrinking, and the step(3) comprises cloth inlet-prebaking-air cooling-padding the liquid ammonia-steaming - washing-roller drying-cropping, the cotton and silk fabrics which are processed by the liquid ammonia have the advantages of soft and smooth feeling, no mightiness damage, no ironing and little washing shrinkage. Although the expansion effect of caustic soda is three times higher than the liquid ammonia, the caustic soda is high in viscosity and uneven in permeability, and owing to the good impregnability of the liquid ammonia, the treatment effect of the liquid ammonia and the mercerization of the caustic soda is different; cotton fiber is swelling, the warp direction and the weft direction of which are both very even after the liquid ammonia treatment. Although the liquid ammonia finish has the sense of the mercerizing, the liquid ammonia finish is different from the traditional mercerizing which leads the mightiness, the elasticity, the feeling of the cotton and silk fabrics to increase and improves the steady of the size without any corrosion and non homogeneity to the fiber which are caused by the caustic soda mercerizing.

The invention relates to an automobile cleaning and polishing agent capable of avoiding scratches as well as preparation and application of the automobile cleaning and polishing agent. The automobile cleaning and polishing agent is prepared from components in percentage by mass as follows: 2%-5% of carnauba wax, 3%-7% of silicone oil, 3%-4% of a penetrating agent, 9%-15% of an emulsifier, 7%-12% of alkyl polyglycoside, 2%-6% of a co-emulsifier and 55%-73% of a detergent assistant. The automobile cleaning and polishing agent is prepared from bio-degradable and environment-friendly raw materials, has extremely low surface tension and great permeability and can completely remove traffic films, dust, grease and the like on the surface of the automobile, the automobile does not need to be wiped with sponge in the cleaning process, no scratches are produced, waxing and polishing can be finished in the automobile cleaning process, the secondary waxing process is avoided, the automobile cleaning procedure is greatly simplified, the work efficiency is improved, and the automobile cleaning and polishing agent has the advantages of water saving, energy conservation, time saving and high efficiency.

The invention provides an anti-helicobacter-pylori probiotic composition, which comprises fructo-oligosaccharide, stachyose, orange juice powder, glucose, yam powder, maltodextrin and lactobacillus dry powder. The probiotic composition provided by the invention can inhibit the growth of helicobacter pylori so as to relieve the occurrence of gastric ulcer and stomachache.

The invention discloses a ventilating heat-dissipating support structure used for an ultrahigh geothermal tunnel. The ventilating heat-dissipating support structure comprises an initial-stage supportstructure, a waterproof layer structure, a heat insulating layer structure, a secondary lining structure, a ventilating heat-dissipating structure, a structure temperature measuring system and a transverse connecting tube, wherein the initial-stage support structure comprises an initial spraying structure and a re-spraying structure; the ventilating heat-dissipating structure is positioned in theinitial spraying structure; and the transverse connecting tube is used for connecting the ventilating heat-dissipating structure to a gas exchange system in the tunnel. According to the ventilating heat-dissipating support structure disclosed by the invention, the ventilating heat-dissipating structure is arranged in the initial-stage support structure, sub-grade type circulating ventilation is performed to realize air exchange between high-temperature gas inside the ventilating heat-dissipating structure and normal-temperature gas in the tunnel, good heat-dissipating effect is achieved, adverse effect, on the support structure, of high ground temperature is overcome, and integral durability of the funnel support structure under long-term high-temperature action is improved. The inventionfurther provides a using method of the ventilating heat-dissipating support structure used for the ultrahigh geothermal tunnel.

The invention relates to an inner blowout preventer of a full-port drilling tool. A valve body is internally provided with a passage and a lug boss; a left valve plate and a right valve plate are semi-circle conical; and the upper ends of the left valve plate and the right valve plate are respectively provided with outer flanges which are hung on the upper end surface of the lug boss and are in an open state so that the passage is in a through state. The invention has reasonable and compact structure and convenient use; and the conical valve plates can be fully opened in a positive cycle or static state to smoothen the passage of the drilling tool so as to reduce circulating pressure loss, basically have no erode to a valve core and carry out corresponding drilling operation by various instruments and tools with outside diameters smaller than a certain size. The inner blowout preventer of the full-port drilling tool can be automatically closed under the push of liquid dynamic power soas to take the blowout-preventing effect in case of blowouts in the drilling tool during the drilling operation, thereby not only extremely improving the processing rate during downhole accidents, but also improving the anti-erosion capability of the valve and further measuring the pressure of a vertical pipe.

The invention provides a refractory castable for a molten iron tank. The refractory castable comprises the following components in percentage by weight: 50-65 percent of high-alumina particles, 10-30 parts of high-alumina powder, 1-10 percent of quartz sand, 1-20 percent of diaspore clay fine powder, 3-7 percent of calcium aluminate cement, 1-7 percent of silicon fine powder, 0-4 percent of alumina fine powder, 1-3 percent of zirconium silicate powder, 0.2-2 percent of heat-resistant steel fiber, 0.05-0.3 percent of metal aluminum powder and 0-0.3 percent of sodium tripolyphosphate. The refractory castable for a molten iron tank has the advantages of long service life, high slag resistance and low production cost, is suitable for a molten iron tank for receiving acid slag with high viscosity, is prevented from being eroded, and contributes to reducing adhesive slag.

The invention provides a traditional Chinese medicine for treating chronic gastritis. The traditional Chinese medicine for treating chronic gastritis is prepared from the following medicines by weight: 10g of astragalus membranaceus, 8g of codonopsis pilosula, 8g of caulis bambusae in taeniam, 10g of fructus aurantii, 6g of radix ophiopogonis, 8g of radix paeoniae alba, 7g of cuttlebones, 8g of gorgon fruits, 6g of rhizoma bletillae, 10g of radix curcumae, 15g of cassia twig, 10g of sea-buckthorn, 10g of endothelium corneum gigeriae galli, 10g of elecampane and 6g of rhizoma zingiberis. The traditional Chinese medicine for treating chronic gastritis provided by the invention has a remarkable curative effect for treating chronic gastritis.

The method for preparing semisolid slurry for magnesium alloy ultralow temp. casting includes the processes and steps of melting magnesium, adding compound fire-resisting elements, adding alloy elements, heat-insulating and standing still and semicontinuous casing. Said invention utilizes the addition of compound fire-resisting elements to implement magnesium alloy smelting free from covering agent, and utilizes the pouring process which is made under the condition of the temperature of liquid phase line or the temperature below liquid phase link at a certain cooling rate after properly standing still to implement that its interior has no dirt inclusion or porosity.

The invention provides a water-based working solution for wire electrical discharge machining. The water-based working solution for wire electrical discharge machining comprises the following components in parts by mass: 10-15 parts of triethanolamine, 2-3 parts of sodium borate, 1-2 parts of petroleum sodium sulfonate, 5-10 parts of acrylamide, 5-8 parts of sodium stearate, 2-3 parts of polyvinyl alcohol, 1-2 parts of polyacrylamide, 1-2 parts of fatty acid polyoxyethylene ether methyl ester, 0.5-0.8 part of glycerin, 8-10 parts of ethanol and 40-45 parts of distilled water. The invention also provides a preparation method of the working solution. The water-based working solution for wire electrical discharge machining has the beneficial effects that the service life of the working solution is 12-15 days; the working solution has good processing properties; the surface finish of machined workpieces is improved; the working solution is low in environmental pollution, can not produce oil mist, does not corrode machine tools or machine elements and can not cause bad contact of equipment or mildew and rot damages.

The invention discloses firing resistant conveyer belt cover plastic and a preparation method thereof. The firing resistant conveyer belt cover plastic comprises the following components in parts by weight: 100 parts of vulcanizing silicone rubber, 20-70 parts of reinforcing filler, 0.5-5 parts of vulcanizing agent, 8-20 parts of vulcanizing activator, 10-35 parts of plasticizer, 3-6 parts of antiager and 15-45 parts of fire retardant. The preparation method comprises the following steps: first segment mixing, primary cooling, second segment mixing and secondary cooling. The firing resistant conveyer belt cover plastic disclosed by the invention can be used for a long time under an environment of 250-400 DEG C and can be instantly used at 600 DEG C for a short time, and can be used for preventing the phenomenon that a high temperature material cannot be normally transported induced by surface cracking, corrosion or carbonization of the cover plastic due to over high temperature and greatly prolonging the service life of the conveying belt at a high temperature to achieve a good economic benefit. The preparation method disclosed by the invention has the characteristics of simple steps and easiness in operation, and the like.

Disclosed is a no-freewheeling arc lightning protection gap protecting device, comprising a grounding-side arc extinguishing device, and a grounding-side fitting and a conducting wire-side fitting installed at two ends of a circuit insulator string via fixing devices. The grounding-side arc extinguishing device comprises a thunder and lightning pulse acquisition device, an insulating sealing shell, a gas generating device and an arc extinguishing chamber. The other end of the grounding-side fitting is equipped with a connecting fine pipe. The grounding-side arc extinguishing device also comprises a tubular earth electrode made of a nonmetal conductive material and an L-shaped earth electrode. One end of the L-shaped earth electrode is inlaid in and connected with the connecting fine pipe on the grounding-side fitting via a Z-shaped connecting fitting, and the other end of the L-shaped earth electrode penetrates the thunder and lightning pulse acquisition device and is connected with the tubular earth electrode. One end of the nonmetal conductive material tubular earth electrode is internally inlaid in the arc extinguishing chamber, and the other end is connected with the insulating sealing shell. The device improves the electric power system stability and prolongs the service life of the electric power equipment such as transformer and breaker, and has low production and maintenance cost.

The invention relates to a water-based cutting fluid, comprising water, water-solubility polyether, high-level fatty alcohol, surfactant, extreme pressure additive, anti-corrosion agent, antiseptic. Compared with the prior art, the invention has better technical performance, longer service life, contains no sodium nitrous acid and unsulfated matter, has no stimulation and toxicity corresponding to the request of environment protection, can be used in cycling, has no oil frog produced, has no corrosion to machine tool and machinery, has strong separation ability, produces no oil contamination and has capacity of anti-rust.

The invention discloses a melting and infiltration combination method for powder metallurgy. The melting and infiltration combination method comprises the steps of raw material mixing, compression moulding, sintering, copper infiltration and the like. The raw materials comprise, by weight part, 90-100 parts of iron powder, 1.0-1.5 parts of graphene, 0.05-0.1 part of lanthanum oxide, 1.0-1.5 partsof vanadium powder, 0.5-1.0 part of cobalt powder, 1.0-1.5 parts of chromium powder, 1.0-1.5 parts of zinc powder, 1.5-2.0 parts of calcium oxide, 2.0-3.0 parts of magnesium powder, 0.1-0.2 part of titanium carbide, 0.05-0.1 part of aluminum nitride and 0.5-0.6 part of a lubricating agent. A copper infiltration agent is prepared from, by weight part, 90-100 parts of copper powder, 2.0-3.0 parts ofiron powder, 0.5-1.0 part of nickel powder, 0.5-1.0 part of manganese powder, 0.5-1.0 part of molybdenum powder, 0.5-1.0 part of aluminum powder, 0.5-1.0 part of tin powder and 0.5-0.6 part of zinc stearate powder. The method is reasonable in raw material formula, simple in process and high in production efficiency, and produced and prepared parts have the beneficial effects of being excellent instrength, hardness, wear resisting performance and impact resisting performance.

The invention provides a method for cultivating the asparagus. Compared with the prior art, ammonium bicarbonate, magnesium sulfate, boric acid, titanium sulfate, potassium chloride, cobalt nitrate, adenine and indolebutyric acid are used as a nutrient solution, fresh water, triacontanol and the nutrient solution are used for treating asparagus in order, on the one hand, insect diseases can be inhibited, on the other hand, growth of asparagus seedlings are promoted, and the asparagus is good in quality and high in yield without erosion caused by miscellaneous algaes. The method for cultivating the asparagus can improve the environment of sea areas, other bionts can multiply, so the method has a great economic value.

The invention provides a well cementation material suitable for a low-temperature environment and a production method of the well cementation material. The well cementation material is prepared by mainly mixing 75-89% of portland cement clinker, 1-8% of sulphoaluminate cement clinker, 1-8% of high-alumina cement clinker, 2-4% of dihydrate gypsum, 0.5-1.2% of a dispersing agent and 1-4% of a retarder by weight. The well cementation material has the advantages that selected raw materials of raw meal cooperate with one another, on the basis of meeting the early strength, the later strength is ensured, the hydration rate is also slowed down to a certain extent, the setting time is prolonged, time guarantee is provided for radial grouting, and the risk ratio of blockage caused by the generationof cement plugs during grouting is reduced.

The invention provides a copper infiltration agent for powder metallurgy. The copper infiltration agent comprises, by weight, 93.6 to 94.4 parts of copper, 2.1 to 3.5 parts of iron, 1.4 to 2.7 parts of carbon, 0.7 to 1.8 parts of manganese, 0.4 to 1.5 parts of chromium, 0.2 to 0.9 part of silicon, 0.3 to 1.2 parts of molybdenum, 0.1 to 0.8 part of phosphorus, 0.2 to 0.9 part of cobalt and 0.5 to 1.9 parts of bismuth. The copper infiltration agent for the powder metallurgy has the advantages of being good in forming property, high in infiltration efficiency, free of erosion, low in residual solvent and capable of obviously improving material density and mechanical property.

An apparatus including a bond head, a supplemental support, a reduction module, and a transducer is provided. The bond head holds a first substrate that contains a first set of metal pads. The supplemental support holds a second substrate that contains a second set of metal pads. The aligner forms an aligned set of metal pads by aligning the first substrate to the second substrate. The reduction module contains the aligned substrates and a reduction gas flows into the reduction module. The transducer provides repeated relative motion to the aligned set of metal pads.

The invention discloses hydraulic structure disjoint filling silicone adhesive, which is prepared from a component A and a component B according to a weight proportion, wherein the component A comprises 100 portions of alpha, omega-dihydroxydimethylpolysiloxane and 15 to 45 portions of calcium carbonate filler; and the component B comprises 3 to 10 portions of calcium carbonate filler, 6 to 15 portions of methyl vinyl disilane, and 3 to 10 portions of linear amino polysiloxane cross linker. After stirring and mixing according to the weight proportion, the components are separately sealed and stored; and during use, the component A and the component B are mixed according to the weight proportion and vulcanized at room temperature to form the hydraulic structure disjoint filling silicone adhesive. The hydraulic structure disjoint filling silicone adhesive has the characteristics of room temperature vulcanization, double components, self leveling, adjustable curing speed, low modulus, high elasticity, high durability, free from pollution, free from erosion and the like, belongs to an environment-friendly material, and is mainly used for pouring, filling, sealing and repairing hydraulic structure disjoints of water turbine volutes, water delivery steel pipes and the like.

The invention discloses a dressing for a chronic wound. The dressing consists of the following components in percentage by weight: 1-5% of sodium tetraborate, 1-5% of bioactive glass, 5-10% of hyaluronic acid, 1-5% of propylene glycol, 5-10% of glycerin and 65-87% of purified water. The dressing disclosed by the invention is used by the following steps: simply cleaning the wound with normal saline; and smearing the wound with about 0.5mm-thick dressing. The dressing is applied to chronic hard-healing wounds and is convenient to use by a patient and cheap and easy to prepare. The invention also discloses a preparation method of the dressing.

The invention relates to an environment-friendly snow melting agent which comprises the following ingredients by mass percentage: 13-16% of potassium acetate, 9-11% of sodium formate, 19-21% of absolute ethyl alcohol and 52-59% of water. The environment-friendly snow melting agent is in a liquid state. The environment-friendly snow melting agent causes no pollution or erosion to highway bridges, pavements, roads, crops and plants.

The invention discloses a dual-structure core tube valve. The valve is one of conventional core tube valve plate blocks in the original core tube valve main series. A valve core tube is a fixed part and coaxially penetrates through a sleeve I of a valve body, a valve body inner cavity and a sleeve II of the valve body, an axial interlayer is arranged in the middle of the valve core tube, two axialadjacent sides of the interlayer are each provided with at least one radial circulation hole of an input segment and an output segment, a hollow-out inverted-L-shaped hole way is arranged on the halfsolid part of the valve body inner cavity, and a radial hole opening corresponds to and is matched with the radial circulation hole of the paired input segment, an annular valve element surrounding the interlayer and an annular valve base on the throat of the sleeve II form a seal pair, the difference of the outer diameters of the input segment and the output segment is larger than or equal to 0,the input segment and the sleeve I are in shaft hole type fit, the output segment and the sleeve II are in shaft hole type fit, and a seal is arranged on at least one combination part. A driving element and an elastic element for enabling the valve body to axially move in a reciprocating manner are arranged on the outer end of the valve body. The structure is simple, reliability is high, the valve adapts to high-pressure and strict conditions, medium erosion is prevented, and flexible characteristics are achieved.