40results about How to "No destruction" patented technology

The invention belongs to the technical field of textile fabric finishing agents, and relates to a method for preparing an intermediate fluorine-containing acrylate monomer of a water-proof and oil-proof organic fluorine fabric finishing agent. The method is characterized by comprising the following steps of: (1) in the presence of a reducing agent, preparing polyfluoroalcohol by using a perfluoroalkylacyl compound as a raw material; and (2) slowly dripping (methyl) acryloyl chloride to prepare fluorine-containing acrylate in the presence of a catalyst by using the polyfluoroalcohol prepared in the step (1) and using phenothiazine as a polymerization inhibitor. The number of long-chain perfluoroalkyl carbon atoms in the prepared fluorine-containing acrylate is less than 8, and the fluorine-containing acrylate can be degraded and has no biological accumulation. The fluorine-containing acrylate has no hidden dangers of long-chain perfluoroalkyl to destroy the environment and harm human health. Fluorine-containing acrylate copolymer emulsion prepared by using the prepared fluorine-containing acrylate monomer is used as a water-proof and oil-proof finishing agent for textiles, and the finished textiles have excellent water-proof and oil-proof performance.

The invention provides an inductor manufacturing method. The method includes the following steps that first, an enameled wire coil is wound; second, first ferromagnetic powder is pressed into a magnetic core; third, the magnetic core is installed in a hollow cavity of the coil; fourth, the coil is installed in an injection mold; fifth, second ferromagnetic powder and high-temperature resin are evenly stirred and mixed power can be obtained; sixth, the mixed powder is injected into the injection mold and formed so that an outer magnet can be obtained, and it is guaranteed that the density of the outer magnet is smaller than that of the magnetic core; seventh, cooling and demolding are performed so that an inductor can be obtained. The inductor manufactured according to the scheme has the advantages that the inductor is good in thermal conductivity and long in service life; the density of the magnetic core is different from that of the outer magnet, a totally-sealed magnetic shielding structure is achieved as a whole, and the EMI effect of the inductor is better compared with that of an existing integrally formed inductor; the problem that a coil is damaged by mechanical stress in the original integrally formed inductor is solved, and in other words, the insulating capacity of the original coil is not weakened.

The invention belongs to the technical field of material surface machining quality evaluation and in particular relates to a method for evaluating material sub-surface machining damage layer thickness. By utilizing an indentation test, the sub-surface damage layer thickness is evaluated by virtue of a displacement change rule generated by a pressure head under the actions of different loads; when the increment of the maximum displacement value of the selected load is greater than 50 percent compared with the maximum displacement value of the previous load, the maximum displacement value generated by the selected load is the evaluation value of the sub-surface damage layer thickness; the increment of the selected load can be changed according to the requirements of different processes, so that the accuracy of the evaluation value of the sub-surface damage layer thickness is adjusted; and the evaluation value of the sub-surface damage layer thickness is determined in the shortest time. With the adoption of the method, the value of the sub-surface damage layer thickness is evaluated, although an accurate value of the sub-surface damage layer thickness cannot be obtained and a certain damage of the material surface is generated, indentation in a micrometer scale is generated on the material surface only, the damage degree is obviously smaller than that in a corroding and sectioning method, and destruction of the environment is not caused.

The invention discloses a novel high density integrated electric inductance manufacturing method, which comprises: (1) winding an varnished wire coil into a spiral shape; (2) making first iron magnetic powers into a magnetic core through mechanical pressing; (3) packing the magnetic core into a hollow cavity of the varnished wire coil; (4) packing the varnished wire coil packed with the magnetic core into an injection mold; (5) uniformly mixing and blending resin adhesive, coupling agent and accelerant to obtain high temperature resin adhesive; (6) uniformly mixing and blending the second iron magnetic powers and the high temperature resin adhesive to obtain magnetism composite material; (7) injecting the magnetism composite material into a mold cavity of the injection mold to mold, and solidifying to obtain external magnetic body; and (8) cooling and stripping to obtain molded electric inductance. According to the invention, the volume of the electric inductance manufactured with the method provided herein is small; the density is high; the relative magnetic conductivity is high; the cooling performance is good; the service life is long; the electric inductance is molded as a whole; and the manufacturing method of the electric inductance is simple, thus reducing the production cost.

The invention discloses a method for adjusting the size of a liquid crystal panel. The liquid crystal panel comprises a color film substrate, an array substrate and liquid crystals filled between the color film substrate and the array substrate. The method for adjusting the size of the liquid crystal panel comprises the following steps: cutting the liquid crystal panel to form a fracture at the cutting position; coating the fracture with an adhesive; letting the adhesive partially or all penetrate into the color film substrate and the array substrate; and curing the adhesive. According to the method, the liquid crystal substrate is not squeezed, so that the risk of damage to the liquid crystal substrate is avoided. The adhesive coating mode is simple, easy to operate, high in coating success rate and high in production efficiency.

The invention belongs to the techncial field of preparation methods for synthetic sapphire crystals, and especially realtes to a preparation method for an alpha-aluminium oxide monocrystal, aiming to solve the technical problems on providing the preparation method for the alpha-aluminium oxide monocrystal with the characteristics of environment protection and stable product quality. The preparation method of the alpha-Al2O3 monocrystal comprises the steps of adding raw materials; inserting a seed crystal; sintering the crystal; crystallizing the chemical materials; expanding the center and the crystal; and carrying out isodiametric growth and the like, wherein the raw materials are delta-Al2O3 and the crystal for inserting is a seed crystal with the crystal orientation of 75-degree axis A. The invention can ensure that the qualification rate of the alpha-Al2O3 monocrystal is enhanced; the rejection rate is reduced; and the production cost is saved.

The invention relates to a transverse earth borrowing method applied to a roadbed by a Luoyang shovel, belonging to the technical field of roadway maintenance. The method solves the problems of existing earth borrowing devices and methods applied to the roadbed that the social work function and service life of the road are affected, personal security of workers is hard to ensure, and the earth borrowing efficiency is low. The method specifically comprises the following steps: ensuring that the roadbed at an earth borrowing opening is 1m higher than the highest earth borrowing opening; cleaning weed and surface capping mass away from a side slope by a shovel, and the distributing points; digging a platform at each earth borrowing opening, pouring a cement concrete horizontal table which is 50cm long, 15cm wide and 5cm high outside each earth borrowing opening, measuring by adopting a leveling instrument, and burying a snap joint at each of the front and rear ends of the horizontal table; preserving the poured concrete horizontal table for at least 7 days; starting borrowing earth when the Luoyang shovel reaches a specified earth borrowing opening; and filling earth blocks in a prepared aluminum box from at the middle part of the head of the Luoyang shovel and finally sealing the aluminum box. The method provided by the invention is used for transversely borrowing earth for the roadbed.

The invention provides a manufacturing method of an integrally molded inductor, and belongs to the technical field of inductance elements. The method comprises the steps of winding a copper wire into a coil and electrically connecting the coil and an electrode pin; mixing a magnetic-conducting material with liquid silicone gel evenly at the mass ratio of 100:(2-15) to form a filler and carrying out heat preservation on the filler under the condition that the temperature is 70-80 DEG C for 0.2-1 hour; and putting the coil connected with the electrode pin into a mold, filling the mold with the filler and carrying out integral stamping to form the integrally molded inductor. The manufacturing method is simple; and the technological process is saved. Furthermore, the invention further provides the integrally molded inductor manufactured by the manufacturing method. The current resistance of the integrally molded inductor is significantly improved; the inductor is stable in structure; the magnetic loss can be reduced; and the noise at work can be reduced.

The invention relates to a preparation method of a high-hydrophobicity leather coating agent. The acrylate leather coating agent has excellent film-forming property, light stability, weather resistance and binding property, but has some defects, such as poor water resistance, poor solvent resistance, lack of functionality and the like, due to the linear structure of the acrylate resin. In order to overcome the defects above, the invention provides a semicontinuous seed emulsion polymerization method for preparing the core-shell acrylate resin: the shell is properly cross-linked, so that the acrylate resin is converted into a reticular structure from the linear structure, thereby enhancing the water resistance and solvent resistance of the acrylate resin; and besides, organic fluorine is introduced into the shell, so that the acrylate resin has high hydrophobicity. After the high-hydrophobicity leather coating agent forms a film, the contact angle with water is up to 124 degrees, and the film feels smooth and not sticky; the 24-hour water absorptivity is less than 10%; and after being soaked in methylbenzene for 48 hours, the film only swells, but is not dissolved.

The invention discloses a latex turbidimetry freeze-drying reagent and a preparation method thereof. The method comprises the following steps: coupling latex particles and monoclonal antibodies, and then adding a protective agent, so as to obtain a latex antibody reagent, and ensuring that the protective agent comprises bovine serum albumin, vitamin C and glycine; performing low-temperature vacuum freeze drying on the latex antibody reagent, so as to obtain a lyophilized product, and ensuring that low-temperature vacuum freeze drying is realized through repeated freezing and thawing; sealing the lyophilized product in an inert gas atmosphere, so as to obtain the latex turbidimetry freeze-drying reagent. The latex turbidimetry freeze-drying reagent prepared through the method is good in stability, fast to redissolve and good in uniformity, without suspended solids; after the latex turbidimetry freeze-drying reagent is redissolved, the performance of the latex turbidimetry freeze-drying reagent is not affected, the latex turbidimetry freeze-drying reagent is rapid in reaction with a whole blood sample, a result can be reported within 1 minute, the repeatability is very good, and the result is accurate and reliable.

The invention relates to an engineering glue spraying curing device based on a vortex tube. The engineering glue spraying curing device comprises a horizontally-placed cylindrical annular heating curing device, the annular heating and curing device comprises an outer ring and an inner ring which are coaxially mounted on the same axis, a closed airflow channel is formed between the outer ring and the inner ring, and a plurality of pores are formed in the inner ring; an arc-shaped divergent gas outlet is formed in the lower part of the annular heating curing device; the arc-shaped divergent airoutlet is sequentially connected with a hot-air-flow air inlet pipeline, a hot-end elbow universal joint and a vortex tube hot end; the cold end of the vortex tube is connected with the universal joint of a cold end elbow, a cylindrical roller is arranged in a glue spraying cavity, the end part of the cylindrical roller is connected with a rocker, the rocker is connected with a rocker handle, anda cavity movable rotating plate is arranged at one end of the glue spraying cavity; the other end of a main body is connected with a compressed air inlet pipeline through a first valve; and the otherend of the main body is connected with a compressed air inlet pipeline and a vortex tube main body section through a first valve. The device integrates the functions of removing dust, removing dirt, spraying glue and heating and curing.

A method for improving the sensitivity of a magnetic field sensor probe belongs to the application field of sensor sensitive probes. The method is to place the sensor probe in a bias magnetic field, that is, the easy magnetization direction of the sensor probe is perpendicular to the easy magnetization direction of the bias magnetic field, and the two ends of the sensor probe are connected to a power supply. The present invention adopts the soft magnetic material itself to excite the bias magnetic field, and there is no extra power consumption, which saves energy; the non-fixed connection is adopted between the bias magnetic field and the object to be tested, the adjustment process is simple, the disassembly is convenient, and the operation is easy; the bias magnetic field is used Improve the GMI sensitivity of magnetic materials, without damage or damage to raw materials, and save materials.

The invention discloses a microbial inoculum carrier matrix prepared from cassava residues and a preparation method and application thereof. The invention provides a microbial inoculum carrier matrix. The invention provides application of cassava residues in preparation of a microbial inoculum carrier or microbial inoculums. The cassava residues are cassava starch residues and / or cassava alcohol residues. The microbial inoculum carrier matrix provided by the invention consists of cassava residues and a nutrition material, wherein the nutrition material is made from either corn flour or soybean residues. Proved by experiments, a novel microbial inoculum carrier matrix is prepared from the cassava residues by using the method and has the advantages of sufficient raw materials, low price, simple preparation process, good bacterium carrying effect, environment friendliness and energy saving in raw materials and production processes, convenience in product use, free pollution and the like.