48results about How to "Mechanical" patented technology

The invention relates to toothpaste including radix notoginseng and propolis and a preparation method thereof. The toothpaste comprises the following raw materials according to percentage by weight: 0.1-1.5% of radix notoginseng extract, 0.03-3.2% of propolis powder, 25-46% of natural calcium carbonate, 5-15% of silica, 3-20% of glycerol, -4001-10% of polyethylene glycol, 0.2-1.0% of sodium pyrophosphate, 0.2-1.5% of xanthan gum, 0.1-1.5% of carboxymethyl cellulose, 3-25% of sorbic alcohol, 0.1-1% of saccharin sodium salt, 1-5% of lauryl sodium sulphate, 0.05-0.5% of sodium ethyl p-hydroxybenzoate, 0.02-2% of sodium propylparaben, 0.3-3% of essence, 0.01-0.3% of triclosan, 0.05-2% of zinc citrate, and the balance of water. The natural nursing toothpaste including the radix notoginseng extract has obvious curative effects on gingivitis, bleeding gums, dental ulcer and the like. The propolis has the functions of diminishing inflammation, easing pain and stopping bleeding. The radix notoginseng and the propolis are used in the toothpaste at the same time so that the toothpaste has more obvious effects for stopping pain and resisting gingivitis, bleeding gums and pain.

Provided is a porous-film-forming composition containing silicon-oxide-based fine particles and a polysiloxane compound obtained by hydrolysis and condensation reactions, in the presence of an acid catalyst, of a hydrolyzable silane compound containing at least one tetrafunctional alkoxysilane compound represented by the following formula (1):

Si(OR¹)₄  (1)

wherein, R¹s may be the same or different and each independently represents a linear or branched C_1-4 alkyl group and/or at least one alkoxysilane compound represented by the following formula (2):

R²_nSi(OR³)_4-n  (2)

wherein, R²(s) may be the same or different when there are plural R²s and each independently represents a linear or branched C_1-8 alkyl group, R³(s) may be the same or different when there are plural R³s and each independently represents a linear or branched C_1-4 alkyl group, and n is an integer from 1 to 3 in the reaction mixture containing a large excess of water.

The invention consists of an antenna array, for the reception of two frequency bands, comprising two pairs of radiating elements and an network for excitation of these elements for the reception of one of the bands. The radiating elements are positioned so as to free the center of the array to allow colocalized reception of the other band. The excitation network comprises hybrid elements so as to introduce a certain phase shift between the radiating elements allowing a dual circular polarization . This network must comply with two constraints:The phase shift introduced between the hybrids must be equal to the phase shift of the hybrid modulo 2ktt, .k integer, and the length of the line L1 placed between the first hybrid H1 and the first patch PA1 is such that it introduces a phase shift equal to p modulo 2ktt, .k integer.

The present invention discloses one impact mill for crushing ore into fine powder, and the impact mill has one casing, two coaxial nailed discs in opposite rotation directions, and two coaxial cones set separately inside the cavities inside the nailed discs and provided with spiral accelerating slots in opposite directions to form one first crushing area and one second crushing area. Through crushing in these two crushing area, the produced powder may reach the powder size of D97 not greater than 3 micron. The impact mill of the present invention has the functions of both airflow mill and mechanical impact mill. The present invention discloses one powder producing system with the impact mill comprising one crusher, one elevator, one storage hopper, one grader, one cyclonic collector, one bag type collector and one induced draft fan. The powder producing system capable of producing powder of different sizes has low power consumption and high efficiency.

The invention relates to an improvement to a pulling cable used for an under-well mining machine. The invention is characterized in that a chlorosulfonated polyethylene rubber internal-protection layer is directly extruded and coated on the outer part of an intertwisted flexible cable core; a fiber weaved layer which is provided with a 20 to 40 percent weaving density and can resist sulfuration temperature is directly coated without sulfuration process, and a chlorosulfonated polyethylene rubber external-protection layer is directly extruded and coated on the outer part of the weaved layer, and then a one time sulfuration shaping process is carried out. The jointing between the cable core, internal protection layer and the external protection layer are better, and a force is brought not only to the internal and external protection layers together, but also to the cable core; and a cable frequent coiling anti-pulling force is brought to an integrated cable but not the external protection layer alone, thus the integrated tensile capacity of the cable is greatly enhanced and the service life can be prolonged by 10 to 15 times. And a '3 plus 3' structure of the cable core not only can lead the bending radius to be reduced to 6 times of that of a cable diameter, but also can enhance the stability of the cable structure and is good for being against bending and wearing. The cable of the invention has good bending capability and is resistant for frequent moving, collecting and expanding, and the protection layer has high tensile strength.

Disclosed is an outer tube of fireworks with bottom, whose characteristics is that its main component are haulm fiber, glass fiber, calcium sulfate, light filler, cement of high level and bond. It is formed by once overall stamp by special machine and natural drying, the product has U-typed bottom, a layer of kraft paper enclosing the outer wall of tube, and its appearance, size and length can be ordered by the size needs of different fireworks products. The invention has the advantages of abundant raw material, advanced technology, excellent chemical and physical stability, stable shape, resistance to humidity, high intension and notable safety, which can be widely used in outer tube of various fireworks products.

The invention belongs to the technical field of organic silicone elastomers and discloses an antibacterial organic silicone elastomer emulsion, a preparation method and an application thereof. The preparation method includes following steps: (1) dissolving a surfactant and an alkaline catalyst in water, adding an aminosilane monomer and a methylsiloxane monomer, and stirring the mixture uniformly to obtain a mixed material, homogenizing the mixed material and carrying out a reaction at 60-80 DEG C for 4-12 h to obtain an amino polysiloxane emulsion; (2) regulating the temperature of the amino polysiloxane emulsion to 45-65 DEG C, adding a reinforcing agent and an epoxy quaternary ammonium salt compound, and carrying out a reaction under mechanical stirring or a microwave condition for 1-6 h to obtain the antibacterial organic silicone elastomer emulsion. The antibacterial organic silicone elastomer emulsion is excellent in antibacterial and mechanical performances and can be used in the fields of antibacterial coatings, waterproof coatings, fabric coatings, adhesives, sealing agents and the like.

The invention relates to a zirconium-modified composite adsorbent and its preparation method and use. The preparation method comprises S1, dissolving chitosan, adding zirconium oxychloride into the chitosan, adjusting pH to 4.0-6.0 and carrying out a stirring reaction process for 30-120min, and S2, adding zeolite into the reaction solution, carrying out stirring for 40-180min, adjusting solution pH to 7.0-8.0, and standing the solution for 60-120min to precipitate the zirconium-modified composite adsorbent. The zirconium-modified composite adsorbent has the characteristics of large adsorption capacity and good mechanical properties, does not produce secondary pollution in water sample treatment and has good effects of static defluorination and dynamic defluorination.

The present invention provides a mechanical seal sliding member with high lubricating characteristics, in which the coefficient of friction and the temperature of sliding surfaces are lowered and stabilized without excessive leakage. In the mechanical seal sliding member of the present invention, on the sliding surface 2, a plurality of grating sections 5 are formed separately in each of which a plurality of linear shape ridge portions parallel to each other are formed in a predetermined region with a predetermined pitch. The linear shape ridge portions of the plurality of grating sections are formed as inclined at a predetermined angle to a sliding direction of the sliding surfaces 2. Such periodic structure can improve the lubricating characteristics for lubrication. By irradiating a linearly polarized femtosecond laser with irradiating energy adjacent to a process threshold level to a material surface, a fine periodic structure with a cycle interval comparable with a laser wavelength and with a ridge depth half or less than the laser wavelength can be formed by a self-structuring manner.

The invention discloses a high-efficiency protective mask based on a full-fiber electret generator and a preparation method thereof. The high-efficiency protective mask based on the full-fiber electret generator comprises a tightening belt, a silicone mold, a full-fiber electret generator arranged in the silicone mold and a breathing valve. The full-fiber electret generator comprises a filtering layer and a sliding fixed pillar arranged on the filtering layer; the filtering layer comprises a silicone film, a conductive fabric, an electret fiber film and a non-woven fabric which are stacked insequence; and the conductive fabric and the electret fiber film have different electronegativities and are driven by spontaneous breathing so as to produce 200- 1000V of electrostatic pressure. According to the invention, the protective mask based on the full-fiber electret generator has a filtering efficiency greater than or equal to 98% for PM2.5, a filtering efficiency greater than or equal to1.0% for PM1.0, and the filtering pressure drop is 20- 50 Pa, and with good flexibility and breathability, simple preparation process, the protective mask has wide application prospect in the field ofpersonal protection.

The invention provides a magneto-rheological effect-based elevator braking device with the automatic protection function and an elevator braking method. The device adopts a structure combining a permanent magnet and common magnet exciting coils. On the normal operation condition, the braking torque of a brake is controlled by controlling currents of the magnet exciting coils, on the emergency conditions, the permanent magnet can move towards the direction of magneto-rheological fluid under the pressure of a reset spring by cutting off compressed air entering a permanent magnet-air inlet cylinder, and therefore a magnetic field of the permanent magnet can be exerted on the magneto-rheological fluid, then the braking torque can be generated and the braking effect can be realized. According to the magneto-rheological effect-based traction elevator braking device, an internal cooling liquid flow channel is used for dissipating heat, the magneto-rheological fluid can be maintained within a low temperature range, and good control performance and good stability performance can be obtained. The magneto-rheological effect replaces an original mechanical brake, and therefore control over the braking device is simple and reliable.

The invention relates to a fermented jerusalem artichoke straw for soilless culture, and the fermentative jerusalem artichoke straw is prepared through the following method, wherein the method comprises the steps: 1), carrying out the natural withering of the jerusalem artichoke straw, smashing the jerusalem artichoke straw till the length is from 3 cm to 6 cm, stacking the smashed jerusalem artichoke straws, uniformly adding adjustment liquid with a leavening agent to the jerusalem artichoke straw stack, adjusting the content of water in the jerusalem artichoke straw stack to 50%-60%, and obtaining an to-be-fermented, wherein C/N is 25-35:1; 2), carrying out the fermentation of the to-be-fermented jerusalem artichoke straw stack for 45-50 days under the room temperature, and obtaining the fermented jerusalem artichoke straw. According to the invention, the fermented jerusalem artichoke straw cooperates with turf and vermiculite, thereby obtaining a soilless culture medium with the void ratio being more beneficial for the growth of vegetables, bringing a good root environment for the growth of roots. Moreover, compared with a composite medium which just contains turf and vermiculite, the medium can improve the health of vegetable seedlings, improves the anti-disease capability of the vegetable seedlings, and improving the yield.

The invention relates to the field of fuel cells, in particular to an anion exchange membrane with a strong rigid structure and a preparation method and application thereof. In order to improve the conductivity and the stability of hydroxyl, p-quaterphenyl is polymerized with different aryl monomers and ketone monomers, the main chain of p-quaterphenyl is composed of a high-molecular-weight ether-bond-free, rigid and hydrophobic aryl skeleton, positive ions with high alkali stability are combined, and the high rigidity of p-quaterphenyl is reserved. The obtained anion exchange membrane of the polyarylene piperidine homopolymer or copolymer has relatively high ionic conductivity, relatively good crystallinity, good stability and strong rigidity, can be made ultrathin and has certain stiffness, and the ion exchange membrane has a good application prospect in the field of fuel cells.

The invention discloses a preparation method of a functionalized modified molybdenum disulfide nanosheet. The preparation method comprises the following steps of: firstly, uniformly mixing phosphonitrilic chloride trimer and guanidine hydrochloride with a given amount of molybdenum disulfide powder through a ball milling method to prepare a molybdenum disulfide nanosheet precursor; putting the precursor into a quartz furnace, preparing an element-doped nanosheet through an annealing process; and finally modifying the surface of a molybdenum disulfide nanosheet with a cobalt boride nanosheet inan in-situ growth manner, and obtaining the functionalized modified molybdenum disulfide nanosheet. The functionalized modified molybdenum disulfide nanosheet provided by the invention is simple in preparation method, low in cost and high in surface modifier content. The prepared modified molybdenum disulfide nanosheet has multifunctionality, for example, the modified molybdenum disulfide nanosheet can be used as a novel solid lubricating material or a hybrid flame retardant with a synergistic effect. In addition, the dispersion state and compatibility of the molybdenum disulfide nanosheet ina polymer matrix is improved, so that the improvement of the comprehensive performance of the polymer material can be benefitted.

The invention belongs to the technical field of stainless steel board chemical grinding and polishing materials, and particularly relates to a method for processing an 8K mirror board. The method includes the several steps of pretreatment, chemical polishing and aftertreatment. Compared with the prior art, the method for processing the 8K mirror board has the following advantages that a polishing solution is used according to the method, particles in the polishing solution are dispersed stably, and the lubricating property is good; the surface of a stainless steel board base material is made clean and smooth under the mechanical action and the chemical action, the surface quality and degree of finish are improved, a stone slab can reach the degree of finish of a 8K mirror surface, and the preservative effect is good; and abrasion to a polishing abrasive tool is reduced, the service life of the abrasive tool is prolonged, the quantity of residues is reduced, and polishing efficiency is improved.

The invention discloses surface glass used for preparing an optical fiber faceplate, relates to the field of optical fibers, and overcomes a problem that sealing between an optical fiber faceplate and other parts is bad. Raw materials of the surface glass comprise 45-75% by mass of silica, 1-15% by mass of calcium oxide, 1-18% by mass of boric oxide, 0.1-2% by mass of magnesium fluoride, 1-14% by mass of aluminum oxide, 0.1-2% by mass of bismuth oxide and 0.1-4% by mass of barium oxide. The optical fiber faceplate prepared from the surface glass is high in cathode sensitivity, compatible with photocathode materials and capable of resisting thermal shock and mechanical vibration, and is advantageous in that sealing between the optical fiber faceplate and other parts is good.

Disclosed are a tubular traction pressurization connecting rod control device and an outer-bone fixing device. The device is composed of a traction pressurization connecting rod, steel needle fixing clamps and steel needles. The traction pressurization connecting rod is composed of a full-thread connecting rod body, at least one sleeve pipe and nuts, wherein the full-thread connecting rod body is sleeved with the at least one sleeve pipe and the nuts are fixed at the positions, at the two ends of the sleeve pipe, of the full-thread connecting rod body. The steel needle fixing clamps are connected to the traction pressurization connecting rod, and the steel needle fixing clamps are composed of steel needle pressing pads, screwed hole gaskets, bases, screws, upper nuts and lower nuts. The screws sequentially penetrate through holes in the centers of the steel needle pressing pads, holes in the centers of the screwed hole gaskets and holes in the centers of the bases, the upper nuts are located on the steel needle pressing pads and connected with the screws through threads, and the lower nuts are located under the bases and connected with the screws through threads. The tubular traction pressurization connecting rod control device and the outer-bone fixing device are flexible to combine and convenient to operate, have the functions of static fixation, mechanical traction and pressurization, have very good fixing, anti-shearing and anti-rotating capacities, are applicable to spiral fractures, oblique fractures and intertrochanteric unstable fractures of shinbones and thighbones, and are especially applicable to outer fixation of comminuted fracture.

The invention relates to the technical field of lock bodies and discloses an intelligent door lock mechanical and electrical separation device. The intelligent door lock mechanical and electrical separation device comprises a first driving part, a first transmission part, a second driving part, a second transmission part and a motor module, by means of the design of a mechanical and electrical separation design, automatic unlocking can be performed and manual mechanical unlocking can also be performed, when electric unlocking is performed, the first driving part is firstly driven to rotate through the motor module, the first transmission part is sequentially driven to rotate by the first driving part and drives the second transmission part to rotate, and then stretching and contracting ofa main lock tongue are controlled; when the manual mechanical unlocking is performed, a lock cylinder drives the second driving part to rotate, the second driving part sequentially drives the second transmission part to rotate, the contracting of the main lock tongue is controlled, therefore, the intelligent door lock mechanical and electrical separation device has the functions of the manual mechanical unlocking and the motor automatic unlocking, and the functions of the manual mechanical unlocking and the motor automatic unlocking do not affect each other at the same time; and the intelligent door lock mechanical and electrical separation device is simple in structure and easy to machine, too much position space inside the lock body is not occupied, and the intelligent door lock mechanical and electrical separation device can be reasonably arranged with other components.

The invention discloses a semimetal brake pad and a preparation method thereof. The semimetal brake pad comprises a stainless steel back plate and a friction block, wherein the friction block is prepared from raw materials as follows: iron powder, metal fiber, jute fiber, ferrous chromite, epoxy resin, rubber powder, silicon dioxide aerogel, silicon carbide, nanometer titania, a compatilizer and graphene. The preparation method comprises steps as follows: the raw materials of the friction block are blended in percentage by mass and put in a high-speed mixer to be mixed, and a mixed material is obtained; the mixed material is injected into a forming mold and subjected to hot-press forming, and a hot-press formed semi-finished product is obtained; the hot-press formed semi-finished product is placed in a drying oven and dried, and the friction block is obtained; the friction block is bonded on the stainless steel back plate for constant hot-pressure processing, and the semimetal brake pad is obtained. The semimetal brake pad prepared with the method has the advantages of moderate strength, good wear resistance and low noise.

The invention discloses a method for reducing the methanol content in liquor, and belongs to the technical field of vintage. The method uses ultrasound to assist accumulation of raw materials, a 4A molecular sieve and activated carbon in the fermentation stage are used as additives for reducing the methanol content in the fermentation, ultrasonic waves have mechanical, heat and cavitation effects,destroy cell walls of raw materials, and accelerate the rate of decomposition of raw material pectin substances into methanol, thereby removing the methanol to achieve the purpose of reducing the methanol content, the ultrasonic waves also have the function of promoting dissolution, during the dipping process, the efficiency of removing impurities such as soluble pectin substances, tannin, cyanide and the like is improved, the raw materials after ultrasonic treatment are more likely to swell during the dipping process, favorable conditions for both saccharification and fermentation are created, the methanol content is fundamentally reduced during the vintage process, and traditional material accumulation time is shortened; the method has the advantages of being hygienic, healthy, environmentally friendly and non-polluting, and the added activated carbon has the effect of aging the liquor.

The invention discloses a full-thread degradable pure-magnesium bolt, and relates to the field of medical implants. The full-thread degradable pure-magnesium bolt comprises a body and a nut, wherein threads are formed in the body; a profile counter bore is formed in the nut. The full-thread degradable pure-magnesium bolt is characterized in that the ratio of the length of the threads to the length of the body is 1:1; the nut is a tension nut; and the inclination angle between the side, connected with the body, of the tension nut and the center line of the body is 22 degrees to 30 degrees. The full-thread degradable pure-magnesium bolt can be degraded automatically, is low in cost, has higher histocompatibility and higher biomechanical property, can induce the generation of bone tissues, and can meet the requirements of patients.

The invention belongs to the field of semiconductor manufacturing, and provides a lead wire frame and a lead wire frame row, for solving the problem about how to miniaturize a package structure. The lead wire frame comprises a chip carrier and multiple lead wires distributed at one side of the chip carrier. The multiple lead wires comprise chip lead wires and pin lead wires. The chip lead wires are connected with the chip carrier. The pin lead wires are broken from the chip carrier. The multiple lead wires are sheet-shaped and are disposed at the same plane. The chip carrier is sheet-shaped and is parallel with yet not coplaner with a plane where the lead wires are located. According to the invention, a lead wire plane and a chip carrier plane are not coplanar, such that a chip can be placed on one surface, which is closer to the lead wire plane, of the chip carrier. The thickness of the chip does not additionally increase the thickness of the chip after overall packaging, and the miniaturization of a chip package structure is facilitated.

The invention relates to a double-core optical cable. The double-core optical cable comprises a sheath, two optical fibers are arranged in the sheath, and a gap is formed between the two optical fibers. Due to the fact that the gap is formed between the two optical fibers, both the optical fibers are respectively coated by the sheath, after the two optical fibers are separated, both the optical fibers are still coated by the sheath and not exposed outside, and both the optical fibers can be effectively protected. The problem that after an existing double-core optical cable is torn open, optical fibers can not be effectively protected is solved.

The invention discloses non-quenched and tempered steel applicable to a piston rod of an oil cylinder of a bulldozer. The non-quenched and tempered steel is characterized by comprising the following components by weight percentage: 0.33 percent of carbon, 0.36 percent of silicon, 1.17 percent of manganese, 0.1 percent of alumen, 0.027 percent of sulfur, not more than 0.0165 percent of phosphor, not more than 0.011 percent of molybdenum, and the balance of iron and a few inevitable impurities. According to the invention, the adopted non-quenched and tempered steel is the material which conforms to the mechanical performance and the welding, medium-frequency hardening and electroplating requirements of the piston rod of the oil cylinder of the bulldozer by utilizing the hardening item generated by microelements in the medium carbon steel without thermal refining according to the specific requirements of the piston rod of the oil cylinder of the bulldozer, and is the new energy-saving material applicable to the piston rod of the oil cylinder of the bulldozer.

The invention discloses a direct-current power and control composite cable for rail transit, and relates to the field of cables. The composite cable comprises a power cable core and at least one control cable core, and the control cable cores are arrayed outside the power cable core in a surrounding mode; the power cable core comprises a first conductor formed by multiple stranded copper wires, wherein the first conductor is wrapped by a first insulating layer; each control cable core comprises two control core wires stranded in pairs, and each control core wire comprises a second conductor formed by stranding multiple copper wires, wherein the second conductor is wrapped by a second insulating layer. The power cable and the control cables are effectively combined, laying investment and material production cost are reduced, and laying space is reduced; the power cable and the control cables do not disturb each other, and safety of system operation is ensured; the composite cable has the advantages of being fireproof, large in carrying capacity, resistant to impact voltage and mechanical damage, free of halogen or toxicity, anti-explosion, waterproof, resistant to corrosion, long in service life, safe, structurally flexible and resistant to mechanical vibration, overloads and high temperature.

The invention provides an automatic door locking mechanism and an unlocking method. The automatic door locking mechanism comprises a motor component, a locking pull rod component, a gear component, afirst locking component and a second locking component, wherein the motor component and the locking pull rod component are in mechanical connection with the first locking component, and the first locking component and the second locking component are in mechanical connection with the gear component. According to the automatic door locking mechanism and the unlocking method, the mechanical lockingand unlocking functions and electronic locking and unlocking functions are achieved at the same time, and the service life is long.

The invention relates to a jacket structure of a flame-retardant cable, comprising an inner jacket and an outer jacket; wherein, the outer jacket is sleeved on the outer surface of the inner jacket; the jacket structure has the advantages that the outer jacket can be connected with the outer surface of the inner jacket in a sliding manner, the outer jacket and the inner jacket are flame-retardant chlorinated polyethylene rubber jacket, flame-retardant chloroprene rubber jacket or flame-retardant chlorosulfonated polyethylene rubber jacket, and the flame-retardant chlorinated polyethylene rubber jacket adopts the flame-retardant chlorinated polyethylene rubber jacket with a oxygen index more than 35; the jacket structure of the flame-retardant cable has ingenious design and simple structure, effectively prevents that when using cables, too many mechanical damages are generated on cables so that cables are damaged completely, avoids the frequent happening of underground accidents and is applicable to the jacket structure of mine cables.

The present invention discloses a method for improving taste of brown rice. The method uses the brown rice as a raw material. The method successively comprises the following steps: brown rice is washed and disinfected; after the disinfection treatment, sterile water is added into the brown rice for soaking; the soaked brown rice is drained, the drained brown rice is put still in a film coating solution, the coated brown rice is taken out to be air-dried, and the air-dried brown rice is loaded in dishes; the brown rice in the dishes are subjected to cycle freezing-thawing; and the obtained brown rice is dried to moisture content of 11-12.2%, the dried brown rice is soaked in the soybean protein film coating solution for second soaking and coating, the coated brown rice is air-dried, and theair-dried brown rice is vacuum-packaged. The method of soaking, film coating, repeated freezing-thawing and second film coating is used to improve the taste of the brown rice and increases shelf life.

An atrianatriuretic peptide gene transfected cell microcapsule is disclosed, which can be transplanted in human body to durably release human atria natriuretic peptide for treating hypertension, heat failure and renal insuficiency. It features that the human atria natriuretic peptide gene transfected immortal cells (CHO cell, COS cell, etc) is encapsulated by polycaprolactone or polyurethane microcapsule.