88results about How to "Flexible thickness adjustment" patented technology

The invention discloses a micro-accelerometer and a preparation method thereof, belonging to the technical field of processing micro inertia devices. The micro-accelerometer is arranged on a package substrate which is formed by stacking an upper surface plate, a lower surface plate and a plurality of middle substrates, wherein a signal detection circuit of the micro-accelerometer is attached on the upper surface plate; a sensitive element of the micro-accelerometer is embedded in the middle substrates, i.e. the middle substrates with cavities form a frame of the sensitive element; a flexible hanger and a sensitive mass block of the sensitive element are arranged in the cavities, and one end of the flexible hanger is connected with the sensitive element, while the other end is fixed on the frame; metal electrodes are respectively sputtered on the sensitive mass block and the surface of the frame corresponding to the sensitive mass block so as to form a flat plate sensitive capacitor, or a metal piezoresistive thick-film pattern is deposited at a connecting part of the flexible hanger and the inner side surface of the frame so as to form a metal piezoresistive strain gauge. The micro-accelerometer has high sensitivity and high-temperature resistance and can be fused into a whole with a system level package substrate, thus the micro-accelerometer has low processing difficulty and cost.

The invention relates to a stainless steel composite corrosion-resisting reinforcement bar and a preparation method thereof. By using the method, the reinforcement bar which has the advantages of good corrosion resistance, low cost, and capability of being produced in batches can be prepared. The diameter of the prepared reinforcement bar is 6 to 40mm, and the reinforcement bar mainly comprises a core metal and a stainless steel alloy layer, wherein the periphery of the core metal is coated with the stainless steel alloy layer along the length direction of the core metal, the core metal and the stainless steel alloy layer are combined in a metallurgical mode, and the thickness of the stainless steel alloy layer is 1 to 10mm.

The present invention discloses a chocolate composition, a coating layer and a preparation method thereof and frozen drink coated with the coating layer. The chocolate composition is prepared by a combined use of oil and an emulsifier at a specific ratio, reduces viscosity, improves fluidity of slurry, finally improves uniformity of coating of the chocolate coating layer, can flexibly adjust thickness of the chocolate coating layer, can prepare the chocolate coating layer of 2 mm or more, and can also prepare the chocolate coating layer with the thickness of 1 mm or less. At the same time, through combined cooperation and synergistic effects of a sweetener, edible oil, an emulsifier and chocolate at a specific ratio, the preparation method also avoids problems of cracking, material discharging and waxing feeling problems caused by too thin thickness of the chocolate coating layer, improves coating effects of the chocolate coating layer, and also improves taste and mouthfeel of the chocolate coating layer.

The invention relates to a method for preparing a titanium-coated stainless steel composite plate by adopting superspeed injection deposition and rolling treatment. According to the method for preparing the titanium-coated stainless steel composite plate, a composite plate good in binding force is obtained by spraying pure titanium powder at a high speed and depositing the pure titanium powder on the surface of an activated base material, a titanium-coated stainless steel plate with a compact coating and with an interface in metallurgical bonding is obtained through hot rolling; and surface activating treatment is performed on the stainless steel base material by adopting a method of high-speed bombardment through spherical Al2O3 particles. According to the preparation method, the singe side or two sides of the surface of the stainless steel plate can be coated with titanium conveniently, and the thickness of a titanium-coated layer can be adjusted flexibly according to actual requirements. The preparation method is simple in process, good in controllability and high in production efficiency; and the prepared metal titanium plate has the advantages of being good in binding force, high in density, good in corrosion resistance and long in service life.

The present invention relates to a large trapezoidal section canal surface concrete lining executive mechanical equipment. It includes large span steel truss with running mechanism, through up-down bogie i.e. material distribution and lining bogie respectively to make canal concrete material distribution, spreading, bumping down and levelling; not only saving feeding equipment and pouring concrete labour bur also in favor of protecting anti-seepage thermal insulation structure layer.

The invention relates to a method for preparing a titanium-coated low-carbon steel composite plate by adopting injection deposition and rolling treatment. According to the method for preparing the titanium-coated low-carbon steel composite plate, first a high-speed injection deposition technology is utilized to deposit 304 stainless steel powder on a pre-treated low-carbon steel plate to serve as a transition layer, pure titanium powder is injected at a high speed and deposited on the transition layer, a titanium-coated low-carbon plate with a compact coating and with an interface in metallurgical bonding is obtained finally through hot rolling, and the titanium-coated low-carbon steel composite plate comprising a low-carbon steel plate layer, a transition metal layer and a pure titanium layer. The singe side or two sides of the surface of the low-carbon steel plate can be coated with titanium conveniently by means of the preparation method, the thickness of a titanium-coated layer can be adjusted flexibly according to actual requirements, the thickness of the prepared titanium-coated layer ranges from dozens of microns to several millimeters, the method is simple in process, the thickness of the titanium-coated layer is controllable, and an interface of the prepared titanium-coated low-carbon steel composite plate is in metallurgical bonding and has the characteristic performance of high bonding strength.

The invention discloses a multilayer optical thin film and a manufacturing method of the multilayer optical thin film. The multilayer optical thin film is characterized in that the thin film is formed by compounding one to 10,000 optical thin film units, and the thickness is 0.11 micron to 5,000 microns; each optical thin film unit is formed by compounding a layer of * material thin film and a layer of . material thin film, the thickness speciation of the * material thin films is 0.053 micron to one micron, and the thickness speciation of the . material thin films is 0.053 micron to one micron; the * material thin film and the . material thin film in the same optical thin film unit are different in refractive index. The multilayer optical thin film is manufactured in the mode of carrying out multilayer coextrusion through two extruders and then carrying out unidirectional or bidirectional stretching. The multilayer optical thin film has the functions of totally reflecting visible light and ultraviolet light, filtering 550nm green light and the like, and can be applied to manufacturing of building curtain wall reflecting thin films, automobile glass sticker thin films and reflecting telescopes.

The invention discloses a structure for improving the oblique incidence characteristic of a glass material in a 5G millimeter wave frequency band, and the structure comprises a transparent material film layer and a glass layer; the transparent material film layer comprises a first circuit layer, a transparent dielectric layer and a second circuit layer; the first circuit layer and the second circuit layer are printed on the upper surface and the lower surface of the transparent dielectric layer respectively, and the glass layer is located below the second circuit layer. By adhering the transparent film with the circuit on the surface to the glass, the oblique incidence transmission performance of the glass in the 5G communication millimeter wave communication frequency band can be enhanced, incident electromagnetic waves outside the transmission frequency band can be blocked, and the spatial filtering function is achieved. The structure has the advantages that: the light transmittanceis good, and the film and the circuit are subjected to transparent treatment, so the influence on the light transmittance of the glass is reduced; the use is simple, the designed film is pasted on theglass, and the operation is convenient; the loss is small: generally, the film is made of a low-loss material, so the loss in a medium is reduced.

The invention provides paint for preparing an aluminum phosphate coating on the surface of an aluminum alloy and a use method of the paint. The paint comprises the following raw materials, by weight, 10-70 parts of Al(H2PO4)3, 30-80 parts of pure water, 1.1-1.3 times of the total chemical reaction required amount of pure water and Al(H2PO4)3 of Al2O3 powder. The use method of the paint comprises the following steps: 1) the raw materials are weighed proportionally, and are mixed uniformly and the paint is obtained; 2) an aluminum alloy sample is placed in an alkaline solution for alkaline washing, and then is washed with the pure water, finally the aluminum alloy sample is subjected to natural drying for use; and 3) the surface of the dried aluminum alloy is coated with the paint, then the aluminum alloy is placed in a water vapor environment, and an aluminum alloy casting provided with the aluminum phosphate coating is obtained. The aluminum phosphate coating can be formed on the surface of the aluminum alloy, the corrosion resistance of the aluminum alloy can be improved, the technical treatment temperature is lower than the aging heat treatment temperature usually used for the aluminum alloy, and the use method can act as a final treatment technology to be applied to product production.

The invention discloses a forme wetting water applying method based on combination of electric wetting and ultrasonic atomization and a system and application of the forme wetting water applying method. The method comprises the following steps that an ultrasonic atomization device is arranged below a water roll, forme wetting water is added into the ultrasonic atomization device, and electrodes are arranged at atomization nozzles of the ultrasonic atomization device; 2, the water roll comprises a metal roll and a dielectric layer arranged on the outer surface of the metal roll in a covering manner, the ultrasonic atomization device is started, and the forme wetting water is sprayed to the water roll through ultrasonic atomization under ultrasound; and 3, the electrodes at the atomization nozzles and the metal roll are powered on at the same time, and the water roll is started, so that the forme wetting water is transferred from the water roll to a forme in the form of a continuous anduniform water film. According to the method, the principle of combining electric wetting with ultrasonic atomization is creatively adopted for applying the forme wetting water, the surface tension ofthe forme wetting water can be greatly reduced, and the water film stably and uniformly adheres to the surface of the water roll; by means of the method, the consumption of surface active substances including alcohol in the forme wetting water can be remarkably lowered; high-quality printing can be achieved without any added surface active substance; and high efficiency and environmental protection are achieved.

The invention relates to a tower top anchoring device for connecting double main cables of a suspension cable pipeline bridge, which comprises two anchoring units arranged in bilateral symmetry, wherein each anchoring unit comprises a bottom plate foundation arranged at the bottom of the anchoring unit; a cover plate is arranged at the top of the anchoring unit; anchoring ends are symmetrically arranged at the front end and the rear end of the bottom plate foundation in the longitudinal direction; construction plates are vertically arranged on the two sides and the middle portion of each anchoring end; baffles are arranged along the front end and the tail end of each construction plate; the baffles are fixedly connected with the bottom plate foundation and the construction plates and are perpendicular to the construction plates; two open holes are formed in the corresponding position of each baffle in a bilateral symmetry mode; a main cable penetrates through the open holes and is anchored between the baffles; and the baffles at each anchoring end are connected and reinforced through a plurality of connecting plates. Compared with the mature mode that a single main cable on one side is anchored through a cable saddle, the device can effectively solve the current industrial situation that double main cables on one side are not provided with anchoring devices.

The invention discloses an embossing machine with a heating function. The embossing machine comprises a base plate, two installing columns are symmetrically and fixedly connected to the upper end of the base plate, a driving roller is arranged between the two installing columns, a driving motor is fixedly connected to the side wall of one installing column and is in transmission connection with the driving roller, a U-shaped support with a downward opening is jointly arranged above the two installing columns, installing grooves are formed in the upper ends of the two installing columns, distance adjusting mechanisms are arranged in the two installing grooves, the two distance adjusting mechanisms are both connected to the lower end of the U-shaped support, and a hot pressing roller is arranged on the inner side of the U-shaped support. The embossing machine is provided with a heat absorbing mechanism and a heat releasing mechanism, heat emitted by the hot pressing roller during heatingcan be absorbed and can be released through the heat releasing mechanism, a material to be subjected to embossing can be preheated, the hot pressing effect is improved, heat can be sufficiently used,heat losses are reduced, and energy consumption can be further reduced.

A polysilicon gate formation method comprises the steps as follows: forming a sacrifice layer on a substrate; forming a groove in the sacrifice layer and exposing the substrate by the groove; forming a stratum layer covering the sacrifice layer as well as the side wall and the bottom wall of the groove; forming a polysilicon layer covering the stratum layer and filling the groove; executing planarization operation and removing the stratum layer covering the sacrifice layer; and removing the sacrifice layer. The invention also provides a polysilicon gate, so that the root defects of the formed polysilicon gate can be improved. The invention further provides a semiconductor device formation method and a semiconductor device, thus having fewer polysilicon gate root defects after being formed.

The invention discloses a preparation method of a cathode with a composite metal layer for rare earth electrolysis. The preparation method comprises the following steps: (1) forming a groove structure of which the cross section is an isosceles trapezoid in a set area by using a tungsten rod matrix; (2) preparing a model layer, and obtaining a tungsten rod matrix containing the model layer, wherein the model layer is made of a high-molecular polymer foam material; (3) coating the surface of the model layer with paint, and obtaining the tungsten rod matrix containing the model layer after being coated with the paint; (4) putting the tungsten rod matrix which is coated with the paint and contains the model layer and obtained in the step (3) in a pouring system, and pouring molten metal liquid; and (5) annealing to obtain the cathode with the composite metal layer for rare earth electrolysis. The cathode prepared by the preparation method is long in service life.

The invention belongs to the field of surface treatment of materials, and particularly relates to a device and method for realizing nitrogen increment on the surface of steel through nitrogen arc and nitride in-situ metallurgy. Nitride alloy powder and iron powder are mixed evenly through a two-way coaxial spiral air powder cover, heated through a nitrogen arc and then conveyed onto the surface of a steel base material to be treated. Meanwhile, the nitride alloy powder, the iron powder and part of the base material are heated and smelted through the nitrogen arc; a molten pool is stirred through electromagnetic stirring with an electric arc and swinging of a welding gun so that alloy elements in the molten pool and the molten base material are fully smelted and mixed. A high-nitrogen steel layer is formed on the surface of the steel after the molten pool is cooled and solidified. The nitrogen content of the high-nitrogen steel layer obtained after treatment is high and is far lager than the maximum nitrogen content obtained through a common surface nitrogen increment treatment method. Through real-time adjustment of the nitrogen increment process, high-nitrogen steel layers with different components and properties can be obtained.

The invention relates to the technical field of fabric structures, in particular to a double-layer hybrid sandwich weft knitting fabric. The contrast ratio of a jacquard weaving fabric and other areasof a surface weft layer is achieved by the aid of material differences of yarns of a middle weft layer and the surface weft layer, production processes can be effectively shortened, cost is saved, the thickness of the jacquard weaving fabric can be flexibly adjusted, and breathability, heat retention properties and protective properties of the sandwich weft knitting fabric are achieved. As the hybrid jacquard weaving fabric and the sandwich weft knitting fabric can be woven once, respectively weaving is omitted, any staggered structure of the hybrid jacquard weaving fabric and the sandwich weft knitting fabric can be formed on the same fabric once, and any jacquard weaving shape can be effectively processed.

The invention discloses a hole sealing method for a micro-arc oxidation film layer. The hole sealing method for the micro-arc oxidation film layer comprises the following steps of 1) cleaning and drying magnesium/magnesium alloy with the micro-arc oxidation film layer; 2) preparing a polycaprolactone solution; 3) dipping the magnesium/magnesium alloy with the micro-arc oxidation film layer in thepolycaprolactone solution; 4) performing vacuum drying on the dipped magnesium/magnesium alloy with the micro-arc oxidation film layer; 5) repeating the steps 3) and 4) for multiple times; and 6) putting the magnesium/magnesium alloy with the micro-arc oxidation film layer treated in the step 5) into a closed container, heating until the temperature in the closed container exceeds a melting pointof polycaprolactone, pressurizing and holding, cooling to the room temperature, and reducing the pressure. According to the hole sealing method for the micro-arc oxidation film layer provided by the invention, the micro-arc oxidation film layer is subjected to hole sealing through a dipping-dip coating-curing method, so that the macroscopic surface of the material can be smooth, and hole sealing is firm; and then micropores are sealed through heating, pressurizing, cooling and pressure reducing operation, so that the corrosion resistance of the magnesium/magnesium alloy is greatly improved onthe basis of the micro-arc oxidation film layer.