43results about How to "Unified appearance" patented technology

The invention relates to a forming method of a self-aligned double pattern. The provided forming method comprises the following steps that: a to-be-etched layer is provided, wherein first sacrificial layers are arranged at the surface of the to-be-etched layer and the width of one first sacrificial layer is identical with the distance between the two adjacent first sacrificial layers; first mask side walls are formed at the surface of the to-be-etched layer at the two sides of the first sacrificial layers; second sacrificial layers covering the surfaces of the first mask side walls are formed at the surface of the to-be-etched layer, wherein the surfaces of the second sacrificial layers are flush with the surfaces of the first sacrificial layer; after the forming of the second sacrificial layers, the first sacrificial layers are removed and the surface of the to-be-etched layer is exposed; after removing of the first sacrificial layers, second mask side walls are formed at the second sacrificial layers and the etched layer surface at the two sides of the first mask side walls, wherein the profile shapes of the second mask side walls are symmetrical with those of the first mask side walls; and after the forming of the second mask side walls, the second sacrificial layers are removed. According to the invention, the pattern that is formed by using the formed double pattern as the mask for etching has the unified dimension and morphology.

The invention discloses a preparing method for controllably synthesizing monodisperse active metal nanoparticles through lasers. The method comprises the steps that pure-metal target materials serve as raw materials, the processed target materials are placed into a laser radiating device, the laser radiating device is inflated with argon, cyclohexane and oleic acid are added into the laser radiating device, and then the volume solubility of the oleic acid is larger than 0.05 percent but smaller than 0.12 percent; the target materials are ablated through a nanosecond focus pulse laser to prepare a pure-metal nanometer colloid solution; the colloid solution is transferred to the other laser radiating device, and the volume concentration of the oleic acid in the cyclohexane is adjusted to range from 0.14 percent to 0.17 percent; a nanosecond parallel pulse laser is utilized for irradiating the metal nanometer colloid solution to prepare the monodisperse active metal nanoparticles with the diameter ranging from 5 nm to 20 nm. According to the preparing method, the active metal nanoparticles uniformed in appearance under the normal-temperature and normal-pressure liquid phase condition are controllably synthesized, and the size distribution of the active nanometer particles is smaller than 10 percent. The method is simple in technology, convenient to operate, free of by-products and impurities and suitable for synthesizing most active metal nanometer particles, and is an environmental-friendly synthesizing technology.

The invention relates to a preparation method capable of regulating and controlling uniform size and ordered arrangement of a hydroxyapatite nano grain, belonging to the field of biological materials. The preparation method comprises the steps of: adding a calcium source, a phosphorus source and a fat-free protein colloid into a mixed solvent of an organic solvent and water, regulating pH of a solution to be 10-14 by using a pH regulating agent, carrying out water bath constant-temperature reaction to obtain a mixes solution; and then transferring to a sealed stainless steel agitated reactor internally lined with polytetrafluoroethylene to obtain an intermediate product through a hydro-thermal reaction, and finally, washing with water, freezing and drying to obtain a final product. The method can be used for preparing a hydroxyapatite nano rod structure with the characteristics of uniform size and appearance and a certain parallel arrangement. The hydroxyapatite nano grain can be widely applied to biological materials such as a dental material, a bone substitution material, a biological agent and the like.

The invention relates to a preparation method of nanometer nickel sulfide. The method comprises steps as follows: evenly mixing nickel acetate and sodium thiosulfate according to certain proportion, dissolving in deionized water, obtaining mixed solution; adding the mixed solution in an autoclave, reacting for certain period of time at certain temperature; cooling, carrying out centrifugal washing, drying, obtaining black solid matter, namely nanometer banding NiS with hexagonal phase, wherein the particle diameter is 10-500 nanometers. The invention has advantages that the preparation material is low in cost and price and is green and environment protective, the preparation method is simple and easy in operation, the prepared product is nanometer material, is even in appearance and particle and has good electrochemical activity, when being taken as the cathode material of the aluminium ion battery, the battery specific capacity of the product reaches 100 mAh/g, and the product can circulate stably.

The invention discloses a method for preparing magnesium hydrate through ammonia spray method. The method comprises the following steps: by using caustic calcined magnesite and ammonium salt as raw materials, carrying out ammonia stilling reaction to obtain an ammonium and magnesium salt solution, wherein the ammonium and magnesium salt are contacted in a spray type reactor and magnesium hydrate precipitation reaction is performed, aging product mother liquor for a proper time, filtering, returning filtrate containing ammonium salt to an ammonia stilling system, washing and drying filter cake to obtain magnesium hydrate product with uniform particle shape and good dispersion state. The process disclosed by the invention is used for preparing magnesium hydrate through one-step reaction, is simple in operation step, mild in reaction condition, uniform in product particle shape, and the particle shape can be regulated by changing the reaction condition. The ammonium slat is circulated with the ammonia in the reaction process, the production cost is low, the pollution is less, and the scale production is realized, the product can be used as production raw material of high-pure magnesium oxide and inflaming retarding additive of polymer material.

The invention discloses a sub-2nm ruthenium (Ru) nanowire network and a synthesis method thereof. The method is characterized by comprising the following steps: (1) a surface active agent and a reducing agent are added in water for stirring for 3-5 minutes at room temperature; the mass ratio of the surface active agent to the reducing agent is 1: 2-2: 1; and the quantity of the added water needs to meet the condition that the added water can totally dissolve the surface active agent and the reducing agent; (2) metal ruthenium salt precursor solution is added in the obtained mixed solution in the step (1) for stirring for 1-3 minutes at room temperature; the ratio of the added water to the ruthenium precursor solution is 5: 1-10: 1; and the concentration of the ruthenium metal precursor is 0.05-0.5 mol/L; (3) the mixed solution obtained in the step (2) is transferred into a high-pressure reaction kettle for reacting for 12-30 hours; and the temperature is controlled within 150-200 DEG C; and (4) the product obtained in the step (3) is cooled for washing, and is centrifugally separated to obtain the sub-2nm Ru nanowire network.

The invention discloses a steamed hard-breadroll forming machine and a steamed hard-breadroll forming process. The steamed hard-breadroll forming machine is characterized by comprising a dough feeding conveying device for processing dough materials into strips in sequential connection, wherein the dough feeding conveying device is sequentially connected with a pre-pressing forming device, a shaping device and a disc ranging device; the pre-pressing forming device is used for cutting dough materials and pre-pressing the dough materials into a cap shape with the hemispherical recessed bottom; the shaping device is used for performing shaping processing on the shaped steamed hard-breadroll; the disc ranging device is used for collecting the shaped steamed hard-breadroll; the dough is kneaded and pressed to be made into plane-shaped strips; the strips are flatly pressed by the dough feeding conveying device; strip-shaped dough materials capable of being conveniently cut are formed; through the pre-pressing forming device, the dough materials are sheathed and connected onto a mold to obtain a steamed hard-breadroll mold primarily in a cap shape; then, the shaping device is used for performing shaping smoothening processing to obtain the final steamed hard-breadroll appearance; collection is performed through the disc ranging device; the goal of automatically making the dough materials into the formed steamed hard-breadroll is achieved; the production efficiency is improved; the labor and the materials are effectively saved; the automatic mass production effect is realized.

The invention discloses an articulated type dump truck fuel tank. The articulated type dump truck fuel tank comprises a fuel tank body. The fuel tank body is composed of a front plate, a left side plate, a right side plate and a rear plate, a rapid refueling assembly is arranged on the front side surface of the front plate, a breather, a lock cover, a cleaning opening cover and a liquid level sensor are installed on the top surface of the front plate, and a magnetic fuel dumping screw plug is installed on the bottom surface of the front plate; and a plurality of dampers are installed on the rear plate, the whole tank body of the inner portion of the fuel tank body is divided into four cavities through a transverse baffle and a longitudinal baffle, and through-flow holes are formed in the transverse baffle and the longitudinal baffle correspondingly. According to the articulated type dump truck fuel tank, the problems that the occupied installation space of a traditional fuel tank is large, and the extroversion tendency in the steering process is caused are solved, and the articulated type dump truck fuel tank can effectively reduce the displacement of the fuel tank in the left-right direction and the vibration of the fuel tank in the front-back direction.

The invention discloses a rotary steamed corn bread processing and molding apparatus. The rotary steamed corn bread processing and molding apparatus comprises a shell, foot cups, big foot wheels, steamed corn bread moulds, a mould unloading assembly, a mould loading assembly, and a work box; a transmission device and the mould loading assembly are arranged in the shell, wherein the transmission device is composed of a motor, a coupling, a first reducer, a drive wheel, a conveyor belt, a first rotating shaft, a second reducer, a third reducer, a joint bearing, a cylinder, a tensioning device, atransmission frame, a first bevel gear, a second bevel gear, a slide rail, a slider, a connecting rod, a first connecting block, a cam assembly and a second rotating shaft; and a rotating device andthe mould unloading assembly are arranged on a surface of the shell. By adopting combined usage of the transmission device and the tensioning device, the rotary steamed corn bread processing and molding apparatus has improved production efficiency , so that, manpower and material resources can be effectively saved. The prepared steamed corn bread is uniform in appearance, and small in size difference; moreover, manual operation is avoided, so that, the steamed corn bread is green and pollution-free. And thus, safe and sanitary production of foods is further ensured, and the effect of automaticmass production is realized.

The invention provides a circle-to-square gradual-change tube of a turbulence generator. The circle-to-square gradual-change tube comprises a circular tube section, a transitional tube section and a polygonal tube section; the transitional tube section is connected with the circular tube section and polygonal tube sections which are respectively located at two sides; the section of the circular tube section is a circle, the section of the polygonal tube section is a polygon, and the section of the transitional tube section gradually varies from a polygon to a circle in a direction from the polygonal tube section to the circular tube section; the circular tube section, the transitional tube section and the polygonal tube section are of an integrally connected structure, wherein the polygonal tube section comprises, but is not limited to, a quadrangle, a pentagon and a hexagon. The circle-to-square gradual-change tube is prepared by using a hydraulic pipe contracting machine and at leasttwo sets of rolling pressing wheels. The size and the appearance of the circular-variable square tube are controlled by equipment, the size is uniform, simplicity and groups of rollers, and the sizeand appearance of the circular-variable square tube is controlled by equipment. The size is uniform, convenience and high efficiency are achieved, and the appearance is attractive. The diameter changing place is connected through the transitional section in a gradual-change mode, so that generation of vortex of a slurry flow is reduced, the uniformity degree of the slurry flow is improved, and theservice life is prolonged. The equipment has a simple structure, manufacturing is convenient, mass production can be realized, and cost is saved.

A side column type laundry dryer comprises a base, an upright, a cloth cover positioned on one side of the upright, a drying frame part fixing portion positioned at the upper end of the upright, and an air outgoing disc fixing portion positioned at the lower end of the upright. The side column type laundry dryer is characterized in that an elongated cover piece longitudinally extending, the upper section of the cover piece covers the drying frame part fixing portion, the middle section of the cover piece covers the part of the upright, between the drying frame part fixing portion and the air outgoing disc fixing portion, the lower section of the cover piece covers the air outgoing disc fixing portion, and two lateral edges in the longitudinal direction of part of the cover piece are connected on the bonding sides of the cloth cover and the upright respectively. The cover piece is arranged on the outer side of the upright, so that the side column type laundry dryer is uniform in overall appearance posture, good in visual effect and higher in strength while attractiveness and compactness in appearance is guaranteed.

The invention discloses a plastic product as well as a preparation method and a piece of refrigeration equipment thereof. The preparation method for the plastic product comprises the following steps that a plastic base stock and a surface layer base stock are molded in a co-extrusion way, so that the plastic base stock forms a body, and the surface layer base stock forms a surface layer, wherein the surfer layer is formed in at least a part of surface of the body. The plastic product is prepared by the method for preparing the plastic product, common formation of the body and the surface layer can be effectively realized, so that the technical problems of inconsistent product appearance, large color difference, low product percent of pass, low surface strength and easiness in scratches in the current preparation technology are solved successfully; and in addition, the preparation process is simple, the production cycle is short and the environment cannot be polluted.

The invention discloses an opening window without a window frame and relates to technical field of architectural engineering. The opening window without the window frame comprises vertical columns, a cross beam and a glass auxiliary frame, wherein bosses are arranged on the front surfaces of the vertical columns and the cross beam; lock seats are arranged on the side surfaces of the bosses; lock catches corresponding to the lock seats are arranged on the side surfaces of the glass auxiliary frame; the edge part of the glass auxiliary frame is positioned in front the vertical columns or the cross beam justly; and the width of the edge part of the glass auxiliary frame is smaller than the width of the vertical columns and the cross beam. For the opening window without the window frame, a window frame structure is eliminated, the opening window is directly connected with the glass auxiliary frame through bosses on the front surfaces of the cross beam and the vertical columns, and the orthographic projection of the edge of the glass auxiliary frame is overlapped with the vertical columns and the cross beam, so that an appearance effect of a curtain wall is uniform; in addition, since the window frame structure is eliminated, the construction period of the curtain wall is shortened and the cost is reduced.

The invention relates to low-temperature nitriding-based vanadium nitride powder and a preparation method thereof. The preparation method is characerized in that the low-temperature nitriding-based vanadium nitride powder is prepared from aluminum powder, vanadium pentoxide powder and inorganic salt in a mass ratio of 1:(0.2-0.4):(0.7-0.9). The preparation method comprises the following steps: mixing the aluminum powder, the vanadium pentoxide powder and the inorganic salt to obtain a mixed powder; carrying out heat preservation on the mixed powder at a temperature of 700-900 DEG C for 1 to 3hours in a nitrogen atmosphere, and naturally cooling, so as to obtain a calcined product; and adding the calcined product to a hydrochloric acid solution, soaking for 1 to 2 hours, washing with distilled water for 3 to 5 times, and drying at 90-110 DEG C for 8 to 12 hours, so as to obtain the low-temperature nitriding-based vanadium nitride powder. The preparation method has the characteristics of simple process, short production cycle, low cost and low synthesis temperature. The low-temperature nitriding-based vanadium nitride powder has the advantages of high purity, high strength, good electrical conductivity and good corrosion resistance and mechanical properties.

The invention provides an aluminum hydroxide and a preparation method thereof, belong to the field of material chemical industry. The preparation method of the aluminum hydroxide comprises the following steps: mixing sodium alkoxide, water and an aluminum material to obtain a second solution, and carrying out aluminum-water reaction at the temperature of 40-100 DEG C to obtain the aluminum hydroxide. The preparation method can be used for preparing the aluminum hydroxide which is relatively uniform in morphology and has a crystal form of gibbsite.