69results about How to "Not easy to break down" patented technology

The invention discloses a medium silicon molybdenum niobium spheroidal graphite cast iron material and a preparation method thereof. The medium silicon molybdenum niobium spheroidal graphite cast iron material is prepared from the following chemical components in percentage by mass: 2.8-3.2% of C, 4.2-4.5% of Si, less than or equal to 0.4% of Mn, less than or equal to 0.04% of P, less than or equal to 0.015% of S, 0.8-0.9% of Mo, 0.6-0.9% of Ni, 0.4-0.7% of Nb, 0.03-0.06% of Mg, 0.15-0.25% of V and the balance of Fe and inevitable other elements. Since C04 high-purity pig iron and waste steel are taken as raw materials, a medium-frequency induction furnace is adopted for smelting, and a carburant, silicon carbide, ferrocolumbium, nickel plates, ferrosilicon and ferrovanadium are added in different time phases of smelting, raw iron chemical components and smelting temperature expected by design can be achieved, and the product disclosed by the invention can be prepared through nodulization and two times of inoculation. By adopting the edium silicon molybdenum niobium spheroidal graphite cast iron material disclosed by the invention, an exhaust manifold of an engine can work under a working condition of about 800 DEG C, the high-temperature use property of the exhaust manifold can be improved, and the service life of the exhaust manifold can be prolonged.

The invention discloses microbalance ecological fertilizer special for yellow peaches. The microbalance ecological fertilizer is prepared from the following components in parts by weight: compost, humic acid, trace element amino acid chelate fertilizer, basic salt, polyglutamic acid, seaweed extract, calcium magnesium phosphate fertilizer, monoammonium phosphate, potassium sulfate, ammonium sulfate, silicon fertilizer and borax. The invention also provides a preparation method of the microbalance ecological fertilizer special for the yellow peaches. The microbalance ecological fertilizer disclosed by the invention has the advantages that according to the soil environment, by combining the growth habit and the environmental factors of yellow peach trees and controlling formula components and compositions proportions thereof, the purposes of increasing the utilization rate of the fertilizer, prolonging the fertilizer efficiency time, activating soil nutrients, adding beneficial microorganisms in soil, promoting nutrient absorption and the like of tree bodies, providing persistent and comprehensive nutrition supplies for growth of the yellow peach trees, increasing the quality of theyellow peaches, increasing the yield and increasing the income can be achieved.

The invention relates to a method for preparing a super-hydrophobic film on an ultra-low carbon steel surface, and belongs to the technical field of surface treatment. The method for preparing the super-hydrophobic film on the ultra-low carbon steel surface comprises the steps of first depositing a phosphate coating on the surface of an ultra-low carbon steel substrate with a chemical deposition method, the surface roughness of the ultra-low carbon steel substrate reaches 1.7-2.6 [mu]m; then performing hydrophobic modification for the ultra-low carbon steel substrate with the phosphate coating deposited on the surface using saturated fatty acid with more than 12 carbon atoms. In the invention, a certain phosphate coating and a hydrophobic surface are formed on the substrate, with self-cleaning and anticorrosion functions; the method provided by the invention is widely applied to automobile industry and electrical equipment industry, such as anticorrosion of automobile sheet surfaces as well as corrosion resistance and non-viscosity of home appliance panels, and especially the corrosion resistant time of the treated substrate can be prolonged effectively without influence on the surface.

The invention discloses a drug composition containing baricitinib and a preparation method and application of the drug composition. The drug composition comprises the baricitinib and an auxiliary material which can be received pharmaceutically, wherein the auxiliary material comprises a filling agent and a disintegrating agent. The preparation method of the drug composition comprises the steps that the filling agent and the disintegrating agent are evenly mixed, so that the mixed auxiliary material is obtained; and then a baricitinib crude drug and the mixed auxiliary material are evenly mixed or pelletizing liquor containing the baricitinib crude drug is evenly mixed with the mixed auxiliary material, and drug-carrying pellets of the solid drug composition containing the baricitinib are obtained through pelletizing. According to the drug composition containing the baricitinib and the preparation method and application of the drug composition, the solid drug composition which can be dissolved out rapidly in vitro and contains the baricitinib is prepared by controlling the particle size of the baricitinib, using microcrystalline cellulose, mannitol and the like in the hydrophilic auxiliary material as the filling agent, and using croscarmellose sodium and the like as the disintegrating agent; and the preparation technique is simple and suitable for industrialization.

The invention discloses a flood prevention baffle and a working method thereof and relates to flood prevention devices. The flood prevention baffle is simple and firm in structure and good in sealing effect. The baffle comprises two or more stop blocks, flexible water bags, a hard water outlet, a pipeline, a water pump, a valve guide device and a water source. The flood prevention baffle has the advantages that in case of flood attack, the baffle can be accurately unfolded to stop flood and be folded and put away after the flood steps back, and other work is not affected; the baffle is constituted by the two or more stop blocks and the flexible water bags, and the structure is simple; the height of the baffle is 50-120 cm, and the baffle is small in size and convenient to transport; the stop blocks are connected through stand water bags, bottom edge water bags are arranged at the bottom edges of the stop blocks, and the total sealing effect is good; the guide device is adopted, and the baffle can be unfolded rapidly; the guide device further plays the function of reinforcing the flood prevention baffle, so that the flood prevention baffle is not prone to being shattered through flushing; the stand water bags and the bottom edge water bags are utilized for sealing spaces between the baffle and a wall and the ground, no additional sealing strip is needed, and the cost is saved.

Provided is a mineral absorption improver which has excellent safety and excellent taste, can be ingested for a long period, and can improve the absorption of minerals. The mineral absorption improver comprises an oligosaccharide and a fermented milk product as active ingredients. The mineral absorption improver can improve the absorption of minerals, particularly zinc, by a synergistic effect ofthe oligosaccharide and the fermented milk product, even though the mineral absorption improver is a composition having a lower oligosaccharide content than those of the conventional mineral absorption improvers. When the mineral absorption improver is prepared using galactooligosaccharide which is a compound hardly decomposed under acidic conditions, as the oligosaccharide, the mineral absorption improver can be added to compositions such as acidic foods and pharmaceutical preparations.

The invention relates to a carbon fiber heating ground mattress which is characterized by comprising an aluminum foil glass fabric layer (1), carbon fiber heating wires (2), an aluminum foil glass fabric adhesive tape layer (3) and two inner conductive wires (4), the aluminum foil glass fabric layer (1), the two inner conductive wires (4) and the aluminum foil glass fabric adhesive tape layer (3) are arranged from top to bottom in sequence, a single carbon fiber heating wire (2) or multiple carbon fiber heating wires (2) connected in parallel are connected between the two inner conductive wires (4), and the outer ends of the inner conductive wires (4) stretch out of the aluminum foil glass fabric layer (1) and the aluminum foil glass fabric adhesive tape layer (3). The carbon fiber heating ground mattress has the advantages of being good in even heating performance, good in radiation protection performance, high-temperature resistant, long in service life, dual-purpose in a dry paving mode and a wet paving mode, and especially convenient to mount and pave.

The invention discloses an environment-friendly rubber tire material. The material is prepared from the following raw materials in parts by weight: 0.5-1.5 parts of sulfur powder, 1-3 parts of polyester fibers, 1-2 parts of an anti-aging agent 2246, 1-2 parts of dimethicone, 10-20 parts of ethylene propylene diene monomer, 10-20 parts of natural rubber, 40-55 parts of butyl rubber, 30-35 parts of CPE resin, 1-1.5 parts of microcrystalline wax, 10-15 parts of carbon black, 2-4 parts of polytetrafluoroethylene, 2-4 parts of zinc stearate, 1-3 parts of fatty acid, 20-30 parts of fluorite powder, 1-2 parts of carnauba wax and 40-50 parts of compound intercalation modifying powder. The stable environment-friendly rubber is stable in chemical property, is not easily decomposed, does not contain lead, nickel and other toxic elements, and is environment-friendly rubber.

The invention discloses a complexation-system ionic liquid catalyst-HF solution, a preparation method and application thereof. The solution comprises an ionic liquid catalyst and anhydrous fluorinated hydrocarbon which are in a molar ratio of 1:5-50. The invention also discloses the application of the complexation-system solution in the fluorination of hydrochloric ether. The method comprises: adding hydrochloric ether and the complexation-system ionic liquid catalyst-HF solution to a high-pressure reactor; raise temperature to between 30 and 100 DEG C within one hour; performing reaction for 3 to 20 hours under the pressure between 1 and 2 MPa; and obtaining fluorine chlorine alkane by separating and purifying products after the reaction is over. The method has the advantages of mild conditions, low system pressure, easy separation and purification of fluorination products, easy control over convenient process operation and suitability for industrial production. Through appropriate treatment, the complexation-system solution can be regenerated and repeatedly used but still has good catalytic activity.

The invention discloses an improver of soil physicochemical characters and a preparation method of the improver of the soil physicochemical characters, and belongs to the improver for treatment of saline alkali soil. The improver comprises the following components in a mass ratio: 30 to 60 parts of straw, 10 to 20 parts of polyacrylamide, 30 to 50 parts of humus and 5 to 10 parts of inorganic salts; the inorganic salts containing elements which are necessary for crop growth such as calcium, magnesium, iron, zinc, boron and nitrogen are added in the improver, so that losses of a large number of the inorganic salts in soil due to salt leaching can be supplemented to meet the demands of the crop growth for the inorganic salts. The preparation method and the application method of the improver are simple, the use amount of the improver is small, the improver takes effect quickly, durable in effect and suitable for large-area popularization; after the improver is applied for 1 to 2 times, the soil structure can be obviously improved, and the amount of soil aggregates is increased, and salt ions in the soil can be further promoted to be leached; a plurality of substances such as polyacrylamide can enhance the permeability and permeability of the soil and reduce soil corrosion resistance, and further have good water retention, soil conservation and fertilizer slow-release performances.

The invention discloses a method for improving stability of glutamine in a stem cell culture medium. The method has the advantages that before the culture medium containing the glutamine is prepared, the glutamine and a nanometer material are prepared into composite nanometer gel particles, and then the composite nanometer gel particles are added into the culture medium to prepare; the chemical stability of the glutamine is effectively improved, and the easiness in decomposing is avoided; the hydrophilic solubility with distilled water is improved, the additional heating for dissolving is not needed in the preparation process of the culture medium, the dissolving speed is effectively improved, the problem of instability of chemical property of the glutamine is solved, the culture and accuracy of subsequent test result are effectively guaranteed, the error is reduced, and the culture survival rate of the stem cell culture medium and the accuracy of application study are improved; in addition, the external heating operation is avoided, the destroy to chemical property of other nutrient components is avoided, and the application range is widened.

A drawer assembly includes: drawers, arranged in a storage compartment of the refrigerator in a way of being capable of being pushed and pulled forward and rearward between a front extreme position and a rear extreme position; and two support assemblies in left-right parallel arrangement. Each of the support assemblies includes a support frame. The support frame is fixed to an inner wall of the storage compartment, is provided on an inner side with a first slideway extending forward and rearward, and is provided on a rear portion of the inner side with an elastic tongue. A left sidewall and a right sidewall of the drawer are respectively mounted on the first sideway of the support frame of one of the support assemblies in a forward and rearward slidable way.

The invention relates to the field of waste gas treatment equipment, and in particular, relates to a wet-process tower for deacidification by a wet process. The wet-process tower comprises a flue gasinlet, a tower body, a flue gas cooling part and a flue gas dehumidifying part; the flue gas cooling part comprises a cooling part spraying device, a primary demisting layer made of PP and a cooling liquid circulating system arranged outside the tower, and the cooling part spraying device comprises a silicon carbide cooling part nozzle; the flue gas dehumidifying part is sequentially provided witha condensate collecting layer, a packing layer, a dehumidifying part spraying device, a secondary demisting layer, an anti-scattering net and a dehumidifying liquid circulating system which are arranged from bottom to top, and the dehumidifying liquid circulating system is arranged outside the tower body; the condensate collecting layer comprises a chimney cap, and the chimney cap is made of glass fiber reinforced plastics; the dehumidifying part spraying device comprises a dehumidifying part nozzle made of silicon carbide, the packing layer and the secondary demisting layer are PP packing layers, and the anti-scattering net is made of PP. The interior of the tower body is made of a certain material, so that the deacidification and dewhitening effects are improved, and higher pollutant discharge requirements are met.

The invention discloses a process for preparing prepared rehmannia root traditional Chinese medicinal decoction pieces, relates to the technical field of traditional Chinese medicinal decoction pieceprocessing, and solves the problem of medicinal property reduction of medicinal materials since massive sugar in the medicinal materials is lost in the preparation process. The preparation process comprises the following steps: soaking a rehmannia root raw material in deionized water after washing, adding a proper amount of lignin and cellulose into the deionized water, and treating for 1-3 hoursat 60-80 DEG C under a condition that the pressure intensity is 0.1-0.5MPa. By adopting the method, sugar in the rehmannia root raw material is prevented from massively losing in the processing process, so that the prepared rehmannia root traditional Chinese medicinal decoction pieces have better medicinal property, and an excellent medicinal efficacy is achieved in the using process.

The invention discloses a high-strength stainless steel road guardrail, and belongs to the technical field of traffic facilities. The high-strength stainless steel road guardrail comprises stand columns and guardrail plates, more than two anti-blocking pieces are fixed on each stand column, and the anti-blocking pieces are fixedly connected with the guardrail plates through guardrail connecting reinforcing plates; each anti-blocking piece comprises two buffer sleeves which are sequentially connected between the corresponding stand column and a guardrail connecting reinforcing plate, and the two buffer sleeves are fixedly connected in the radial direction. An impact contact plane is arranged at the outermost end of the side, facing the road, of each guardrail plate, and the two ends of theimpact contact plane extend to the two ends of the guardrail plate respectively. Guardrail reinforcing ribs are arranged on the sides, deviating from the road, of the guardrail plates, and the guardrail reinforcing ribs, the stand columns, the guardrail plates, the anti-blocking pieces and the guardrail connecting reinforcing plates are all made of high-strength stainless steel materials. The high-strength stainless steel road guardrail solves the problems that an existing road guardrail is not high in strength and corrosion resistance, unstable in structure and poor in buffering performance,cannot provide good protection for drivers and passengers of various vehicle types and is insufficient in safety protection performance.

A stable antirust primer is prepared from the following raw materials in parts by weight: 20-30 parts of a paint, 5-9 parts of antimony oxide, 4-8 parts of a zeolite powder, 4-6 parts of a film-forming auxiliary agent, 8-11 parts of ethylene glycol butyl ether, 5-9 parts of aluminum tripolyphosphate, 2-6 parts of nitro cellulose, 2-7 parts of a coupling agent, 3-5 parts of a levelling agent, 8-14 parts of polymethyl methacrylate acrylic resin, 2-4 parts of a pigment, 3-9 parts of butylated amino resin, 1-5 parts of a matting powder, and 3-6 parts of a dryer. The stable antirust primer has the beneficial effects that the stable antirust primer is stable in chemical properties, not easy to decompose, and good in use effect, besides, has quite good adhesiveness, and can be used for a long time.