52results about How to "Does not change properties" patented technology

The invention discloses a concrete crack detector with a reinforcing bar as an electrode. A reinforcing bar emission electrode and a reinforcing bar receiving electrode are embedded in concrete, wherein the emission electrode is connected with an emission circuit through an emission cable; a signal transmitted by the emission circuit is sent out from the concrete through the emission electrode; the receiving electrode is connected with a receiving circuit through a receiving cable; and the receiving circuit is used for amplifying and filtering a signal received by the receiving electrode. An output signal of the emission circuit is connected to a control and computation module through an emission communication control interface, and two-way communication control is performed between the control and computation module and the emission circuit. An output signal of the receiving circuit is connected to the control and computation module through a receiving communication control interface, and two-way communication control is performed between the control and computation module and the receiving circuit. As the reinforcing bar is used as the electrode, the original construction features and stress features of the concrete do not change, a construction process and a construction method have no need to change, and the electrode and the concrete structure have the same service life. The concrete crack detector with the reinforcing bar as the electrode has the advantages of simplicity in design, convenience for construction, low cost and long service life.

The present invention discloses a photo-stabilization type lubricating grease, which comprises, by weight, 75-92 parts of a base oil, 5-20 parts of a fatty acid soap thickener, 0.1-2 parts of an antioxidant, 0.01-2 parts of a light stabilizer, and 0.1-2 parts of an anti-rust agent, wherein the components are matched under a certain condition according to the ratio to obtain the photo-stabilization type lubricating grease. According to the present invention, the added functional additive does not affect the product structure, wherein the specific performance is that the consistency (cone penetration) and the strength limit of the product are not changed significantly; and with the addition of the light stabilizer, the photo-stabilization type lubricating grease of the present invention has the light stability, wherein the appearance of the lubricating grease is essentially the same before and after the illumination, and the product meets a variety of lubricating requirements.

The invention provides a single aligned carbon nano tube jet-printing arrangement method. The method comprises the steps that a substrate is modified with octadecyltrichlorosilane (OTS), so that the surface of the substrate has a hydrophobic property; precise control over the thin film position, the aligned density and patterning of aligned carbon nano tubes is achieved on the functional hydrophobic substrate through ink-jet printing, and a carbon nano tube thin film which is uniform in density and consistent in orientation and has different patterns is arranged. By means of the method, the carbon nano tube arrangement area of the size from several micrometers to the wafer level can be effectively controlled; the problems can be solved that in all existing arrangement methods, the arrangement position, the arrangement orientation, the arrangement density and the thin film array patterning of one-dimensional nano materials on the substrate cannot be efficiently and precisely controlled;the method can be widely used for preparing various high-performance photoelectric devices, logic circuits and functional thin films based on the carbon nano tubes, and the method also has a wide application prospect in the field of flexible wearable nano devices.

The invention relates to an organic compound fertilizer suitable for flower planting. The organic compound fertilizer comprises the following constituents in percentages by weight: 20-25% of plant straws, 10-15% of cow dungs, 20-30% of shell powder, 8-12% of powdered rock phosphate, 20-30% of plant shells, 3-6% of humic acid and 3-5% of biological bacteria, wherein the sum of the constituents is 100%. The organic compound fertilizer prepared according to the formula is prepared by the following specific steps: mixing the plant raw materials according to the corresponding proportion, adding humic acid and the biological bacterial strains into the mixed raw materials according to the corresponding proportion, uniformly stirring, retaining the moisture to be 50-55%, performing stacking fermentation for 10 days, then turning over the stacks, feeding the fermented materials into a flap type fermentation tower to be fermented for 12 days, fermenting by an aerobic fermentation method, keeping the water content of the mixed and fermented plant raw materials to be 20%, when the fermented materials are free of stink obviously, discharging the fermented materials from the fermenting tower, uniformly and fully mixing the fermented materials with the powdered rock phosphate, performing over crushing, screening and qualification inspecting, and at last pelletizing or grinding into powder, so as to obtain the finished product of the dedicated fertilizer for the flower.

A provided latex sheet material is mainly prepared from the following compositions in parts by weight: a latex solution, a negative oxygen ion powder and nanometer silver, the negative oxygen ion powder accounts for 3%-6% by mass of the latex solution, and nanometer silver accounts for 0.3%-0.5% by mass of the latex solution. The invention also provides a preparation method for the latex sheet material. The method can help to add the negative oxygen ion powder and nanometersilver into the latex mattress without an extra processing step and without changing a conventional latex mattress production line, thereby substantially reducing production cost, and the method possesses wide application prospect. Also, the invention provides the latex mattress prepared by employing the above latex sheet material. When a person lies flat on the mattress, the person can contact with far infrared ray and negative oxygen ion in a large area, and the provided mattress gives play to health-care effect without adding any equipment and without consuming extra time.

The invention relates to a cryogenic stamping, shearing and forming device with a terrace die for micro workpieces and a forming method using the cryogenic stamping, shearing and forming device, and belongs to the field of mechanical engineering. The cryogenic stamping, shearing and forming device comprises the terrace die, a hollowing block, an ejector rod, a low-temperature solution, a blank holder, a heat insulating material and a terrace die supporting base, wherein the side wall of the terrace die is locally provided with a through hole; a hydraulic cylinder drives the terrace die to move in the blank holder; the hollowing block is fixed in a hollowing block supporting base; the hydraulic cylinder drives the ejector rod to move in the hollowing block; a storage slot capable of accommodating the low-temperature solution is formed in the blank holder; the top of the storage slot is provided with a floating type piston; and the inner side wall of the blank holder is provided with a side wall hole capable of allowing the low-temperature solution to flow. The forming method based on the device comprises the five steps of clamping plates, cooling, stamping and shearing, drawing the plates out of the die and carrying out shape inspection. According to the cryogenic stamping, shearing and forming device with the terrace die for micro workpieces and the forming method using the cryogenic stamping, shearing and forming device, the advantages are that precision processing for micro workpieces is realized, deckle edges and burrs are reduced in a facilitated mode, section is flattened, section forming precision and forming precision for forming the workpieces are improved, and batched production is realized.

The invention relates to a sensor for monitoring temperature/strain signals of bearings. The sensor is formed by preparing a strain sensitive layer (2) and a temperature sensitive layer (3) on an outer-ring end face (1) of a bearing. One end of the strain sensitive layer (2) and one end of the temperature sensitive layer (3) are overlapped with each other. The strain sensitive layer (2), the temperature sensitive layer (3) and the overlap surface of the strain sensitive layer (2) and the temperature sensitive layer (3) are insulated from the outer-ring end face (1) of the bearing. The resistance value of the strain sensitive layer (2) can change with strain so as to form a strain sensor. The voltage value of the overlap surface of the strain sensitive layer (2) and the temperature sensitive layer (3) can change with temperature so as to form a thermocouple temperature sensor. Signals are led out by leads (4) at the other end of the strain sensitive layer (2) and at the other end of thetemperature sensitive layer (3). A thin film sensor of a composite structure is realized, which can simultaneously detect the temperature and strain parameters of bearings.

The invention discloses a method for repairing a ship cylinder end through TIG welding. The method comprises the following steps that (1) a welding material is manufactured according to one of following methods, specifically, a body piston ring corresponding to a welded workpiece is selected and cut into small pieces as required to be used as the welding material after being degreased through a metal cleaning agent, or a casting iron welding rod CHC408 is selected, a coating is removed, and a flux core is used as the welding material; (2) the surface of the welded workpiece is treated, specifically, a to-be-repaired welded workpiece is detected, a welding repair position is determined, the welded workpiece is subjected to ultrasonic cleaning, the to-be-welded position is cleaned through grinding, new parent metal is exposed, and welding repair is instantly conducted after drying; and (3) welding repair is conducted, specifically, a TIG direct current welding method is selected, argon shielded welding parallel welding is adopted, and leftward welding is conducted. Through the method, welding is easy, the welding yield is high, fusion degree is high, the reuse rate of the cylinder end can be increased, and capital and time for recast are reduced.

The invention discloses a water-based fluorinated acrylate copolymer and a hybrid membrane, and preparation methods and application thereof. According to the water-based fluorinated acrylate copolymerdisclosed by the invention, an alkyl acrylate monomer is polymerized to form a core; an alkyl acrylate monomer, a fluorinated acrylate monomer and a hydroxyethyl acrylate monomer are copolymerized toform a shell; the mass of the alkyl acrylate monomer accounts for 78.13%-92.70% of the mass of the total monomers; the mass of the fluorinated acrylate monomer accounts for 6.21-20.94% of the mass ofthe total monomers; the mass of the hydroxyethyl acrylate monomer accounts for 0.91-1.09% of the mass of the total monomers; and the number of fluorocarbon atoms is less than or equal to 6. The hybrid membrane prepared from the water-based fluorinated acrylate copolymer emulsion has good effects in water repellency, dirt repellency, uniform membrane formation and corrosion resistance, can be usedfor oil-water separation, uses water as a solvent, is friendly to environment, low in cost, simple and efficient, and has good market application prospects.

Disclosed is a method for reducing the sterol, for example cholesterol, content of sterol-containing substances such as fats and oils. The method provides an efficient and cost effective process based on the phospholipid bilayers. Phospholipid aggregates are contacted with, for example, a sterol-containing fat or oil in an aqueous environment and then mixed. Following adequate mixing, the sterol-reduced fat or oil is separated from the aqueous separation mixture as shown in the figure. Alternatively, the corresponding sterol-enriched phospholipid also may be isolated from the aqueous separation mixture.

The invention provides a method for preparing a space environment damage prevention protective coating. The method comprises the following steps: preparing polysilazane from organochlorosilane and an ammonia gas through reaction, enabling polysilazane and aluminum isopropoxide to react to prepare a polyaluminum chloride silazane polymer, coating the polyaluminum chloride silazane polymer on the surface of a space material, and curing, thereby obtaining the coating resistant to elemental oxygen corrosion. The protective coating prepared by using the method is applicable to an external material which is sensitive to near-earth orbit elemental oxygen corrosion on space aircrafts. By adopting the method for preparing the space environment damage prevention protective coating, the corrosion resistance of the protective coating to the near-earth orbit elemental oxygen corrosion is improved, and meanwhile the tendency that an organic silicon coating has cracks in the ceramic conversion process can be inhibited.

The invention relates to material for suppressing secondary electron emission. The material comprises a graphite wall and carbon fibers. The carbon fibers are vertically and evenly distributed on the surface of the graphite wall. Electrons are applied to bombard the graphite wall to generate secondary electrons, the secondary electrons are emitted at different angles from the surface of the graphite wall, very few of the secondary electrons return to vacuum after multiple emission and absorption of the carbon fibers, emission coefficient of the secondary electrons is less than 1 and close to zero, secondary electron emission is suppressed, wall potential is significantly increased since the secondary electron emission is decreased, heat flux of the electrons from plasma to the graphite wall is decreased, wall heating, wall evaporation and plasma cooling are suppressed, and features of the graphite wall and properties of the plasma are unchanged.

The invention relates to a compound ion fluorinated alkyl sodium sulfate polymer degradation agent and a preparation method and application. The compound ion fluorinated alkyl sodium sulfate polymer degradation agent comprises the following components in percentage by weight: 0.3-0.5% of perfluorophosphate, 1-1.5% of alkyl benzene sulfonic acid, 20-25% of critic acid, 5-10% of ethylene glycol, 15-20% of ferrous sulfate and the balance of water. The compound ion fluorinated alkyl sodium sulfate polymer degradation agent provided by the invention is suitable for reducing viscosity and assisting filtration of a polymer-containing produced liquid in oil field production, and is wide in applicable temperature range, and the crude oil and the polymer-containing produced liquid are successfully separated at a temperature over the freezing point of the crude oil of the produced liquid. Through multiple experiences, the oil content in filtered water is less than 0.02% which reaches the national standard, and the compound ion fluorinated alkyl sodium sulfate polymer degradation agent is energy-saving and environmental-friendly, the pollution is reduced, and the ecological environment is extremely improved.

The invention relates to the technical field of metal smelting, in particular to a production method of a stainless steel wire rod material. The production method comprises the following steps: raw material selection and pretreatment; welding into a long strip; hole pattern extrusion; flying shear treatment; and taking up the wire. The production method does not involve steel smelting and steel rolling procedures, and is low in energy consumption, small in pollutant discharge amount and environmentally friendly; the used raw material is stainless steel waste, the raw material cost is low, and good economic benefits are achieved.