66results about How to "Corrosion free" patented technology

The invention relates to a building material and a method for preparing the same, in particular to a glass fiber reinforced cement board and a method for preparing the same. The glass fiber reinforced cement board comprises the following components in weight portion: 100 portions of Portland cement, 13.6 to 15 portions of high alumina cement, 3.1 to 3.4 portions of fly ash, 5.7 to 6.3 percent of plaster stone powder, 120 to 132 portions of ceramsite, 6.5 to 7.1 percent of foaming agent, 74.5 to 81.3 percent of dispersing agent, 53 to 58.7 portions of pure water and 3.6 to 4 portions of plastic-coated glass fiber grid cloth. The preparation method sequentially comprises the following steps: mixing weighed-up solid materials, adding weighed-up liquid materials in the previous step, cavity forming, roll extruding, vibration, cutting and curing. The invention has the advantages that: the glass fiber reinforced cement board has advantages of light volume weight, high strength, low dry shrinkage wet swelling coefficient, no after expansion and shrinkage, corrosion resistance, sound insulation, heat insulation, fire resistance and non-combustion; the preparation method has the characteristics of scientific and reasonable method, continuous production, high efficiency and low cost, flat board surface, convenient in-site mounting and the like; the glass fiber reinforced cement board is good in water resistance, and particularly applied to the finishing of internal and external walls and ceilings of various buildings in wet environments; moreover, the glass fiber reinforced cement board and a method for preparing the same have the advantages of ensuring the strength and service life of cement due to the adoption of the plastic-coated anti-alkali glass fiber grid cloth, along with reasonable blending ratio and reduced alkalinity.

The invention discloses kitchen flame-retardant and scrapping-resistant polypropylene materials, and further discloses a preparation method of the kitchen flame-retardant and scrapping-resistant polypropylene materials. The kitchen flame-retardant and scrapping-resistant polypropylene materials are prepared from the following components: by weight, 29-55.5 parts of polypropylene, 5-20 parts of continuous glass fiber, 5-10 parts of compatilizer, 19-27 parts of compound flame retardant and 1.5-3 parts of scrapping-resistant agent. The kitchen flame-retardant and scrapping-resistant polypropylene materials have the advantages of being flame-retardant, scrapping-resistant, environment-friendly, non-poisonous, free of sucking water, mould-proof, anticorrosion, acid-alkali resistant, anti-aging, heat-resisting, recoverable, capable of conducting injection molding, convenient to process, capable of having different color custom-made according to requirements and being made into different styles and patterns in an injection molding mode according to requirements and the like, simple in production flow, continuous in production process, high in production efficiency and stable in production quality, and satisfies requirements for energy conservation, emission reduction, environmental-friendly residence, comfort and beauty, and are ideal kitchen materials.

The invention discloses a technical system and a technical method for converting a sulfur-containing exhaust gas into sulfuric acid. The technical system comprises an exhaust gas preheater, an exhaustgas fan and a sulfuric acid vapor condenser, wherein the exhaust gas preheater is used for preheating the sulfur-containing exhaust gas to above dew point temperature at 15-30 DEG C; a glass tube isserved as a heat exchange tube of the exhaust gas preheater; the exhaust gas fan is used for boosting the preheated acidic process gas, conveying one part into a combustion furnace and conveying the other part into a process gas steam heater; the combustion furnace and the process gas steam heater are connected with each other and then are connected with a combined reactor; the combined reactor isused for catalytically oxidizing SO2 in the acidic process gas into SO3; the sulfuric acid vapor condenser is used for condensing the SO3 generated by the combined reactor into sulfuric acid; a coldend of the sulfuric acid vapor condenser is connected with the exhaust gas preheater and is used for supplying hot air to the exhaust gas preheater. The device provided by the invention is capable ofresisting against the fluctuation of SO2 concentration in raw gas and is capable of achieving considerable economic benefit of the device and reasonable utilization of energy.

The invention discloses a method for flowingly corroding complicated slender copper tube cores made of aluminum alloy castings. Slots are formed on embedded copper tube cores in the prior art, and the copper tube cores are corroded by a method for soaking the copper tube cores in corrosive liquid and has shortcomings that the corrosion efficiency is low; the copper tube cores cannot be thoroughly corroded, and the quality of castings which are processed in follow-up procedures such as thermal treatment for the castings is affected; and matrixes of the aluminum alloy castings are corroded. In order to overcome the shortcomings, the method is used for dynamically corroding the complicated slender copper tube cores made of the aluminum alloy castings by means of enabling corrosive liquid to flow. The method has the advantages that the corrosive liquid flows in copper tubes by the aid of corrosion-resistant magnetic valves, and the corrosion efficiency is improved; the flow rate of the corrosive liquid can be adjusted, so that the corrosion speed is controlled; the multiple copper tubes or a plurality of castings can be corroded simultaneously by the aid of a multi-tube joint; the requirement on corroding parts with different apertures can be met by means of replacing different sleeves; and the corrosive liquid is basically prevented from being in contact with matrixes of the castings, and accordingly the matrixes are protected against being corroded.

The invention provides a circuit board which comprises: a substrate, a line layer, a protective layer and a fluorocarbon film. The substrate possesses a first surface. The line layer is formed on the first surface. The line layer comprises: a plurality of conductive lines and a plurality of conductive terminals. The protective layer covers the conductive lines and the first surface of the substrate which is exposed from the line layer. A first protective layer possesses a first protection surface which is close to the substrate and a second protection surface which is opposite to the first protection surface. The first protective layer is provided with a plurality of through holes which pass through the first protection surface and the second protection surface so as to expose the conductive terminals. The fluorocarbon film is deposited on the second protection surface and the surfaces of the conductive terminals. The fluorocarbon film is formed by carbon elements and fluoride elements and a ratio of a fluorine atom quantity to a quantity is 1.2 to 1.5. The circuit board of the invention has a long storage life. The technical scheme also provides a manufacturing method of the circuit board.

The invention provides a lifting-pushing device used for shoulders, and belongs to the field of body building instruments. The device includes a weight adjusting box and a bracket; the inside of the weight adjusting box is vertically provided with two supporting columns, the supporting columns penetrate through a lifting device, the lifting device is provided with two column holes allowing the supporting columns to pass through, the weight adjusting box is internally provided with a lifting steel cable, one end of the lifting steel cable is connected with a lifting device, the bracket is provided with two movable support frames which are bilaterally symmetrical, each movable support frame is provided with a first lifting-pushing handle and a second lifting-pushing handle, each movable support frame is connected with one end of a lifting-pushing steel cable, the middle end of lifting-pushing steel cable is connected with a movable pulley, the movable pulley is connected with one end of a connecting steel cable, the other end of the connecting steel cable passes through the bracket and is connected with the weight adjusting box and the lifting steel cable, the surfaces of the supporting columns are coated with corrosion resistant coatings, and a buffering layer is affixed to the bottom surface of each balance weight. The lifting-pushing device used for shoulders can achieve the silent effect and meanwhile achieve the precision and user friendliness of training.

The ethyl benzene preparing process with catalytic dry gas has the advantages of no corrosion to pipeline, high benzene recovering rate and low power consumption. The apparatus includes water washing tower, alkylation tower, coarse separation tower, absorption tower, benzene tower, toluene eliminating tower, ethyl benzene tower, polyethyl benzene eliminating tower, diethyl benzene tower, heat exchanger, pump and tank. The catalytic dry gas is treated through water washing to eliminate MDEA, alkylation, heat exchange, coarse separation, cooling, serial separation in various towers and other steps to prepare ethyl benzene.

The invention discloses a wear resisting material. Aluminum nitride, aluminum oxide, molybdenum disilicide and graphite powder particles are uniformly distributed in an aluminum alloy basal body; a composite micro-arc oxidation layer is distributed on the surface of the aluminum alloy basal body; the aluminum nitride, the aluminum oxide and the molybdenum disilicide are high in hardness to prominently improve the hardness and the wear resistance of the material; and through graphite powder, the antifriction can be improved. Through the composite micro-arc oxidation layer on the surface, the alloy surface wear resistance and corrosion resistance can be effectively improved. Strengthening phases of such elements as Sn, Ru, Sr, Lu, Cu, Mn, Mg, Mo and Fe in an alloy are in dispersion strengthening to improve mechanical performances of the material. In a preparation method, through a mode of attaching mixed powder on a pure aluminum metal wire, the mixed powder is positioned in the center of mother alloy liquid during casting, so that the quick dispersion and the homogenization of micropowder particles are facilitated, and the production efficiency is improved; and micro-arc oxidation film forming parameters and conditions are optimized, so that the hardness and the smoothness degree of oxide ceramic films are improved, the film thickness is reduced, and the wear resistance of the material is effectively improved.

The invention discloses an oral care solution and a preparation method thereof. The oral care solution comprises the following components by weight percent: 0.002-2.0% of traditional Chinese medicine volatile oil, 0.4-8.0% of alcohol soluble traditional Chinese medicine, 0.1-5.0% of solubilizer, 1.0-10.0% of cosolvent, 0.1-15.0% of corrigent and 60.0-98.0% of water, and the pH value range is 6.0-8.5; the traditional Chinese medicine volatile oil and the alcohol soluble traditional Chinese medicine are prepared from eupatorium and elsholtzia according to a mass ratio of 1: 1 to 10:1, by using a steam distillation method. The oral care solution disclosed by the invention is applied to oral care and has curative effects of sterilizing, diminishing inflammation and removing bad breath on such oral diseases as oral odor, periodontitis, gingivitis, and the like. The oral care solution disclosed by the invention is simple in raw materials, extract in principle and strong in pertinence, a modern mature process is adopted to well control the product quality, and the oral care solution is suitable for the demand of modern production technology, is conductive to market promotion and truly brings gospel to patients.

The invention discloses a steel belt self-locking type flange pipe connector used for connecting compound pipes and belongs to the technical field of the pipe connector. The steel belt self-locking type flange pipe connector comprises a shrinking sleeve, a flange 4, a sleeve liner, a steel belt and a filling layer, wherein the flange 4 is composed of an upper flange 5 and a lower flange 6; the shrinking sleeve is arranged between the steel belt and the sleeve liner; a ladder-shaped inner hole is formed on one side, which is close to a pipe body, of the lower flange 6; the sleeve liner is positioned in a hollow cavity; the steel belt is tangent with the outer side of the upper flange 5 and an end of the steel belt is matched with the inner wall of the inner hole, thereby forming the hollow cavity; the filling layer is positioned in the hollow cavity which is encircled by the steel belt, the upper flange 5 and the inner wall of the inner hole; the steel belt is positioned between the sleeve liner and the inner hole; an inclined angle of 30 degrees is formed between the slope of the ladder-shaped inner hole and the axial line of the pipe body. The steel belt self-locking type flange pipe connector can be used for reducing 10% of cost. The loading capacity is above dozens of MPa and the tensile yield strength is above 10MPa. The steel belt self-locking type flange pipe connector used for connecting compound pipes is capable of being used for efficiently promoting the tensile yield strength of the pipes and is reliable in connection and long in service life.

The invention discloses a zero emission technology for wastewater. The technology comprises steps as follows: (1), pretreatment: the wastewater passes through a segmented filter, and particulate matter with grain size larger than 100 mu m is removed; (2), FO (forward osmosis): the pretreated wastewater passes through an FO membrane; (3), concentrated wastewater obtained after the pretreated wastewater passes through the FO membrane is subjected to low-temperature evaporative crystallization by a low-temperature evaporative crystallizer; an FO light draw solution obtained after the wastewater passes through the FO membrane is pumped into a high-salt concentration membrane by a high-pressure pump; produced concentrated water is taken as a draw solution to be recovered, and produced fresh water is taken as industrial water. The technical scheme has beneficial effects as follows: 1, pretreatment is simple; 2, the draw solution is recovered with the high-salt concentration membrane technology, the recovery is simple, and no chemical is required to be added; 3, the low-temperature evaporative crystallizer is driven by air in the evaporation process, and required temperature is about 30 DEG C and is the lowest temperature for evaporation in current water treatment industry.

The invention discloses a high-nutrition dietary fiber brown rice roll and a preparation method thereof, and belongs to the technical field of health food. The high-nutrition dietary fiber brown rice roll is prepared from the following raw materials in parts by weight: 70-75 parts of brown rice powder, 57-65 parts of walnut kernels, 55-59 parts of whole wheat flour, 115-122 parts of butter, 19-23 parts of hazelnut kernels, 14-17 parts of peanut kernels, 49-53 parts of dried cranberry, 22-26 parts of black and white sesames, 19-24 parts of dried grapes, 34-37 parts of red sugar, 28-32 parts of syrup, 42-45 parts of eggs, 4-8 parts of apricot kernels, 10-12 parts of corns, 4-6 parts of liquorice, 25-28 parts of mung beans, 11-14 parts of cashew nuts, 4-8 parts of olive oil and 2-7 parts of edible salt. The high-nutrition dietary fiber brown rice roll and the preparation method thereof have the beneficial effects that the material use is accurate, and the high-nutrition dietary fiber brown rice roll tastes delicious, does not contain an additive or a preservative and is enriched by trace elements such as proteins, vitamins and amino acid; the defect that a high-nutrition dietary fiber product in the market is single is overcome, and the high-nutrition dietary fiber brown rice roll has the effects of tonirying the kidney, warming the lung, strengthening the spleen and stomach, nourishing qi-blood and relaxing the bowl.

The invention discloses an acid corrosion resistance thin-film solar battery component which comprises a front panel, a battery layer, an encapsulation film and a back panel, wherein the front panel, the battery layer, the encapsulation film and the back panel are arranged in sequence along the incidence direction of sunlight, and at least one acid corrosion resistance layer is arranged between a back side of the battery layer and the encapsulation film. The at least one acid corrosion resistance is made of colorless, white and/or close-to-white acid corrosion resistance materials which are good in acid resistance and insulation. According to the acid corrosion resistance thin-film solar battery component, the acid corrosion resistance layer is manufactured between the back side of the battery layer and the encapsulation film, can prevent acidic material produced by aging of the encapsulation film from being directly contacted with the battery layer, and protects a battery from corrosion. In addition, the acid corrosion resistance layer is a good insulation protective layer and a first protective layer to protect the battery from corrosion of the outer side, the battery is protected by two layers including the acid corrosion resistance layer and the encapsulation film, and safe and reliable performance is high.

The invention provides a protecting film for the aero-generator air tank including the steel plate, metal titanium. The steel plate is put into the vacuum furnace and connected the cathode. The titanium ion is produced by the titanium voltaic arc and bomb the steel plate, so a layer of metal titanium is filtered into the steel plate surface. Compared to the present technology, the titanium is the protecting layer of the steel plate to prevent the steel from corrosion.

The invention provides equipment for evaporation recovery of yellow phosphorus from phosphorus mud. The equipment comprises a spiral conveying evaporator. The inner side of the spiral conveying evaporator is provided with a conveying chamber, which is internally equipped with a conveying blade running through the conveying chamber from head to tail. An upper wall of the spiral conveying evaporator is provided with a projecting chamber, which is an evaporation chamber, and an upper wall of the evaporation chamber is provided an exhaust port. Phosphorus mud with a neutralizer added is conveyed to a phosphorus mud storage container through rotation; the phosphorus mud enters the phosphorus mud evaporation equipment from an inlet of the phosphorus mud storage container and is conveyed to the evaporation chamber through the conveying blade inside the spiral conveying evaporator; yellow phosphorus is recovered in the evaporator through high-temperature evaporation; and evaporation waste residue can be treated through direct burial. Through the equipment, elementary phosphorus can be totally recovered from phosphorus mud. The equipment is well sealed during the whole process and produces no obvious smoke. The phosphorus recovery rate is high, and the residue after yellow phosphorus recovery is harmless.

The invention provides rapid permeable compressive concrete and a preparation method thereof. The permeable concrete is prepared into two layers, more stones with small particle sizes are contained in the permeable concrete on the surface layer, more stones with large particle sizes are contained in the permeable concrete on the bottom layer, and rainwater can be filtered and permeated through the special structure. A binder is added to increase the cohesiveness between the framework to improve the compressive strength, meanwhile, the concrete has the effect of a water reducing agent, and sodium nitrate, ammonium nitrite, ethylene glycol and other components have the effect of reducing the freezing point, so that the anti-freezing capacity of the concrete is improved. Modified steel fibers are added to support the concrete, so that the compressive strength of the concrete is improved. A water repellent agent is added into the permeable concrete, so that the contact time and area with water are reduced, water is quickly drained, water in the concrete is reduced, and the compressive strength and water permeability of the concrete are protected.

The invention relates to an anti-corrosion wind power generation blade. The anti-corrosion wind power generation blade comprises a blade body. The blade body comprises a blade inner surface, a blade outer surface and a blade tip part. Each of the blade inner surface, the blade outer surface and the blade tip part is provided with an inflaming retarding coating. Each of the blade outer surface and the blade tip part is provided with an anti-corrosion coating.

The invention relates to a comprehensive ferment health care nutriment capable of delaying aging and improving human immunity and a preparation method thereof. The nutriment is prepared from the following raw materials in parts by weight: 0.2 to 0.5 part of poria cocos, 0.2 to 0.5 part of Chinese angelica, 0.5 to 1.5 parts of Chinese yam, 1 to 5 parts of wolfberry, 1 to 4 parts of fleece flower root, 0.5 to 2 parts of licorice, 10 to 30 parts of cherokee rose fruit, 10 to 20 parts of pollen, 0.5 to 2 parts of cortex moutan, 1 to 3 parts of dried radix rehmanniae, 0.5 to 1 part of tea, 0.1 to 0.2 part of black fungus, 1 to 3 parts of pig blood, 2 to 8 parts of dorado, 1 to 3 parts of turtle, 5 to 15 parts of orange, 2 to 6 parts of peach, 30 to 50 parts of honey, 5 to 10 parts of brown sugar, and 5 to 20 parts of yeast. The nutriment has the functions of invigorating the spleen, boosting the stomach, dissipating dampness, eliminating rheumatism, enhancing immunity and endurance, preventing virus, relieving fatigue, and strengthening muscles, can effectively improve the micro-circulations of human body, and improves the human immunity.

The invention relates to the technical field of refractory materials, in particular to a gunning mix and a preparation method thereof. The gunning mix comprises the following components in parts by mass: 60-65 parts of brown fused alumina, 13-16 parts of silicon carbide, 13-15 parts of a binding agent, 5-6 parts of an antioxidant, 0.05-0.1 parts of fibers and 0.05-0.15 parts of a water reducing agent. The gunning mix developed by the invention is used under the condition of an iron runner and a hot runner, is free of baking, cracking and stripping, and is resistant to erosion of molten iron and iron slag. The gunning mix is short in construction time, low in labor intensity of workers, free of dust and peculiar smell during construction and significant to environmental protection, synergyand the like in the steel industry.

The invention provides a diethylstilbestrol, diethylstilbestrol and hexestrol standard sample in rabbit meat, a preparation method and application, and belongs to the technical field of analytical chemistry. A rabbit is fed with feedstuff containing diethylstilbestrol, diethylstilbestrol and hexestrol, so that tissues in the body of the rabbit contains the diethylstilbestrol, the diethylstilbestrol and the hexestrol, after administration is finished, the rabbit is killed, and muscles of the rabbit are taken, are homogenized and homogenized, are processed into meat paste, are freeze-dried under vacuum, and are sieved, bottled and packed to obtain a rabbit meat standard sample containing the diethylstilbestrol, the diethylstilbestrol and the hexestrol. By the method, the problems that a target object and matrix combination situation is not completely consistent to a real detecting sample, so that treatment results of extracting, purifying and the like are quite different from daily analysis samples are solved. The standard sample is a material standard sample, is uniform and stable, does not contain a preservative or an antioxidant, is easy to store, and is used for proficiency testing of a non-steroidal anabolic hormones drug residue testing item, verification of a detecting method, calibration of a testing instrument, and quality control and assessment of a testing result.