34results about How to "Meet the shape requirements" patented technology

The invention belongs to the field of inorganic nano material synthesis and particularly relates to a preparation method and use of millimetre-sized mesoporous carbon spheres. The preparation method comprises the following steps of: dissolving resorcinol in ethanol serving as a solvent; adding furfural and ethanol solution of hydrogen chloride, and stirring the mixture at 0 to 15 DEG C for 10 to 120 minutes; adding aqueous solution of hexamethylenetetramine and pore-forming material into the prepared solution to obtain solution of a precursor; adding the prepared solution of the precursor into liquid max containing an emulsifier, and stirring the solution to perform per-polymerization; volatilizing the solvent, filtering the remaining material, and washing and drying the product obtained by filtration; and carbonizing the product to obtain the millimetre-sized mesoporous carbon spheres. The preparation of the millimetre-sized mesoporous carbon spheres of the invention is performed under simple conditions and with easy operation. The millimetre-sized mesoporous carbon spheres prepared by the method have the characteristics of adjustable size, large specific surface area, large porevolume and the like, and can be used as adsorbent for hemoperfusion and the like.

The invention discloses a safe and stable suspension bridge and a construction technology thereof. The construction technology specifically includes the following steps that 1, firstly, the whole suspension bridge is divided into a steel arch foot bearing platform, a steel mixing joint section, a pure steel structure section, a cross beam section and a tower crown decoration section according tothe different structure composition; 2, embedded parts are set in a designated position, and pouring is conducted on the embedded parts to prepare the steel arch foot bearing platform; 3, the steel mixing joint section is constructed on the steel arch foot bearing platform; 4, after the steel mixing joint section is constructed, the pure steel structure section is constructed; 5, the cross beam section is constructed on the pure steel structure section, and fixation is then conducted; 6, finally, the tower crown decoration section is built and fixed on the upper portion of the cross beam section. On the basis that the construction quality is guaranteed, the construction technology of the bridge is optimized, the whole construction process is relatively simple, the whole construction speedis increased and the construction period is shortened.

The invention provides a new non-asbestos composite reinforced fiber of friction material with low cost and a relative production method, wherein the fiber is environment-friendly, degradable and non-pollution, which can improve the impact strength of friction material. When in use at high temperature, the friction factor is stable with low abrasion. The production method is simple, cheap and suitable for producing friction material. The non-asbestos composite reinforced fiber for friction material contains mine rock wool or gravel-shaped wool of 50-80 parts by weight, fibrilia of 2-10 parts by weight, wood fiber of 3-8 parts by weight, mica powder or ceramic powder of 2-20 parts by weight, and coupling agent or compatibilizer of 1-5 parts by weight. The production method comprises preparing the materials, cutting mine rock wool or gravel-shaped wool, washing via centrifugal machine, removing slag to obtain main fiber, controlling the slag content lower than 0.5-1%, adding fibrilia, wood fiber and mica powder or ceramic powder to be mixed at high speed, drying and spraying coupling agent or compatibilizer, while the drying temperature is 105 to 150 DEG C and the drying time is 1-2h, to obtain composite reinforced fiber.

The invention discloses an all-solid-state lithium-sulfur battery, comprising a sulfur positive electrode, a lithium or lithium alloy negative electrode, and a lithiated sulfonic acid polymer solid electrolyte diaphragm; the solid electrolyte diaphragm is located between the sulfur positive electrode and the lithium or lithium alloy negative electrode; the sulfur positive electrode Including sulfur-containing active material, conductive agent and lithiated sulfonic acid polymer; sulfur positive electrode, lithiated sulfonic acid polymer solid electrolyte, lithium or lithium alloy negative electrode are sequentially stacked and assembled to form a battery. The room temperature ionic conductivity of the lithiated sulfonic acid polymer solid electrolyte is >10 ‑5 S / cm, no complex lithium salt is required, the preparation method is simple, and the room temperature ionic conductivity of the lithiated sulfonic acid polymer solid electrolyte is better than that of general inorganic-organic composite solid electrolytes. The polymer emulsion is used to prepare the sulfur positive electrode sheet, and an efficient "sulfur / carbon / solid electrolyte" interface is built inside the electrode to improve the activity of the sulfur electrode and obtain a battery with excellent performance; and the existing electrode sheet coating process and equipment, which is conducive to large-scale production.

The invention discloses a full-balanced powder forage for adult stichopus japonicas. The full-balanced powder forage comprises compounds of protein, starch, grease, composite vitamin, composite mineral, bacteria, algae and Chinese herbal medicine. The ratio of the compounds is designed based on physiological characteristics and nutritional requirements of adult stichopus japonicus; the ratio is scientific and reasonable, and meets growth requirements of stichopus japonicus; the powder forage is developed based on characteristics of greenhouse cultivation of stichopus japonicus; it is confirmed by feeding that absorptivity is high, and digestive efficiency is excellent. The Chinese herbal medicine and the bacteria are added specially, so that the full-balanced powder forage has significant effects on improvement of physical condition of adult stichopus japonicus, and morbidity in cultivation is low. Single-celled algae and macrophytic algae are added into the full-balanced powder forage according to feeding characteristics of stichopus japonicus, so that the full-balanced powder forage is popular with stichopus japonicus, and growth speed of stichopus japonicus fast.

A rail car lighting device comprises a plurality of short lamps. The short lamps are spliced into a long lamp matched with a special-shaped interior in shape. Sectional bars are arranged in the short lamps. Light sources are arranged on the sectional bars. The irradiation angles of the included angle between all sections of light sources and the horizontal plane are consistent through sectional bar twisting. The short lamps are spliced into the long lamp matched with the special-shaped interior in shape, and accordingly the requirement for the shape of the lamp is met. The twisted sectional bars are arranged inside, the light source irradiation angles of points of the long lamp are consistent, the requirement for the lighting effect in a carriage of the special-shaped interior is met, and the carriage beautifying degree is further improved.

The invention discloses an electronic device comprising a framework, M electronic elements, and an elastic cover body with veins, wherein the M is a positive integer. The M electronic elements are fixed to the framework supporting the elastic cover body. The framework and the elastic cover body define a space in which the electronic elements are received. The first electronic element of the M electronic elements is provided with an interface for being connected with another electronic device. The elastic cover body is provided with an opening portion disposed at a position, corresponding to the interface, on the elastic cover body. The vein visual effect of the opening portion matches that of the elastic cover body. When the electronic device is used, the elastic cover body can be switched among various deformation states in order to open and close the opening portion and further to expose and conceal the interface, thereby satisfying usage and achieving a complete profile structure. The invention also provides another electronic device. The fixed portion of the another electronic device can be also concealed and exposed by switching the deformation states of the elastic cover body so as to satisfy usage and achieve a complete profile structure.

A micro-stress supporting structure of a space-borne space mirror provided by the present invention includes a primary mirror, a primary mirror seat, and a primary mirror core shaft. The primary mirror is fixedly connected with the primary mirror mandrel, the primary mirror mandrel passes through the primary mirror central hole, and the small end of the primary mirror is close to the primary mirror positioning plate of the primary mirror mandrel. A mechanical limit boss is designed on the main mirror mandrel, and a main mirror rubber pad, a main mirror metal pad, a first pressure ring and a second pressure ring are sequentially installed on the main mirror mandrel. The first pressure ring has a boss. After the installation is completed, the rubber pad of the primary mirror is pressed against the fixed end surface of the large end of the primary mirror, the boss of the first pressure ring is pressed against the metal pad of the primary mirror, the non-convex surface of the first pressure ring is pressed against the mechanical limit boss, and the second The pressure ring tightly presses the first pressure ring. The support structure provided by the present invention can mechanically and quantitatively control the pressing force of the primary mirror pressure ring on the primary mirror, which can not only improve the fixing and fastening degree of the primary mirror, but also meet the surface shape requirements of the primary mirror after clamping .

A novel lighting device comprises a lamp tube part and a lamp body part. The lamp tube part comprises lamp tube sectional bars, and the shape of the lamp tube sectional bars subjected to stretching shaping is matched with the shape of a special-shaped interior. A light source is arranged on the lamp tube sectional bars. By means of twisting and shaping of the lamp tube sectional bars, the irradiation angles of the included angles between all sections of light source and the horizontal plane are consistent. A lamp the same as the special-shaped interior in shape is formed through stretching and twisting of the lamp tube sectional bars, the requirement for the shape of the lamp is met, and heat dissipation of the lamp is facilitated. By means of twisting and shaping of the lamp tube sectional bars, the light source irradiation angles of points of the lamp are consistent, the requirement for the lighting effect in a carriage of the special-shaped interior is met, and the carriage beautifying degree is further improved.

The invention discloses a plastic electrode and its preparation method, as well as a water-based sodium ion battery and its preparation method. The preparation method of the plastic electrode includes: mixing electrolyte salt and deionized water into an electrolyte solution; adding a surfactant and a moisturizing agent into the electrolyte solution , mix into a uniform solvent matrix; add the conductive material into the solvent matrix, and disperse the conductive material evenly in the solvent matrix; add positive / negative active materials and binders; A water-based sodium-ion battery plastic electrode paste with a three-dimensional network structure formed by cross-linking of the binder. The plastic electrode of the present invention is a stable mixture of active material and electrolyte, the electrolyte is locked in the plastic electrode, the ion diffusion path is reduced when the battery is charged and discharged, the ionic impedance and electronic impedance are greatly reduced, and it is beneficial to large-scale output; the preparation and operation of the electrode of the present invention The battery assembly is completed synchronously, and the liquid injection process is omitted, which simplifies the battery preparation process.