108results about How to "The production process is simple and fast" patented technology

The invention provides a method for preparing a perovskite solar cell on the basis of a two-dimensional material graphene-phase carbon nitride. The graphene-phase carbon nitride is doped into a perovskite precursor solution to prepare the perovskite solar cell. The method has the following advantages that (1) the raw material required for synthesis of the material is low in cost, and the product is small in toxicity; (2) solvent volatilization during the annealing process is effectively slowed down, so that a perovskite thin film crystal is more uniform and compact; (3) the grain crystal sizeof a perovskite layer is increased, a crystal boundary easy to combine with charge is effectively reduced, and the filling factor of a device is improved; (4) a surface of the perovskite thin film ispassivated, and the hysteresis phenomenon of the device is effectively improved; and (5) the conductivity of the surface of the perovskite thin film is improved, the contact resistance of the interface is reduced, and the short-circuit current of the device is increased. The preparation process is simple and convenient and is low in preparation difficulty; by doping of the graphene-phase carbon nitride, the smoothness and the uniformity of the perovskite thin film can be effectively improved; and by a series of gradient doping, the device performance is remarkably changed.

The invention provides a pure inorganic perovskite light emitting diode device manufacturing method. The method comprises the following steps: (1) an ITO transparent conductive glass substrate is subjected to standardized cleaning and drying and then pretreatment; (2) the ITO is transferred to a vacuum cavity, and evaporation on a hole injection layer and a transport layer is carried out; (3) a dual source co-evaporation method is adopted, and a pure inorganic CsPbX3 perovskite light emitting layer thin film is formed through evaporation; (4) an infrared thermal radiation device is used to carry out thermal treatment on the CsPbX3 perovskite film; and (5) an electron transport layer, an electron injection layer and a metal cathode are formed through thermal evaporation. The manufacturing process is simple and convenient, the manufacturing difficulty is low, the full vacuum evaporation method is adopted to manufacture the device, the manufacturing is easy, the repeatability is good, and the device performance is stable; and through the dual source co-evaporation manufacturing method, the smoothness and the uniformity of the thin film are improved, replacement of a subject material and an object material is facilitated, the ratio of the two can be changed, and regulation on the position of a light emitting peak is realized.

The invention discloses an impregnated diamond compact strong wear resistance pick and a manufacture process thereof; the pick comprises a steel body pick body, a pick head and a compact pick tip; the compact pick tip is welded at the middle part of the pick tip through brazing; the steel body pick body and the pick tip are sintered as a whole directly through the powder metallurgy method and the hot pressing technology; the raw materials of the pick tip include matrix powder and diamond; the matrix powder contains cobalt powder, nickel powder, iron powder, copper powder, manganese powder, tin powder, chromium powder and carbonized tungsten powder which mixed in proportion, the granularity of diamond is within the range of 0.42-0.074 mm, and the proportion of the volume of diamond to the volume of the pick tip equals to 5-50 percent; and the process comprises the steps of matrix powder compounding, distribution and mixing of working layer materials, hot pressing sintering formation, sand blasting and brazing. The pick provided by the invention has the advantages of high operating efficiency and long service life, and is suitable for equipment for coal cutting, mining, well drilling and the like.

The invention discloses a diamond-impregnated-cemented carbide strong wear-resistant cutting pick and a manufacturing process thereof. The cutting pick consists of a steel body tooth body (3), a tooth head (2) and a cemented carbide tooth top (1); wherein, the steel body tooth body (3), the tooth head (2) and the cemented carbide tooth top (1) are sintered into a whole by the method of powder metallurgy and thermocompression; the raw material of the tooth head (2) comprises matrix powder and diamond; the matrix powder contains cobalt powder, nickel powder, ferrous powder, copper powder, manganese powder, tin powder, chromium powder and tungsten-carbide powder in certain proportions; the granularity of the diamond is 0.42-0.074mm and the volume of the diamond is 5%-50% of the volume of the tooth head; the manufacturing process comprises matrix powder mixing, working lining materials mixing, hot-pressed sintering molding and sand blasting. The cutting pick of the invention has high working efficiency, long service life and simple and fast manufacturing process and is applicable to equipment of coal cutting, mining and well boring, etc.

The invention relates to a method for preparing a perovskite LED device based on surface ligand control, including the following steps: applying an organic solution of a hole injection layer materialto the surface of a conductive substrate, and forming a hole injection layer after annealing; dissolving cesium bromide, lead bromide and phenethylamine bromide in an organic solvent under the effectof a 3-(decyl dimethyl ammonium) propane-1-sulfonic acid inner salt surfactant to obtain a perovskite precursor solution, applying the perovskite precursor solution to the surface of the hole injection layer and obtaining a perovskite film after annealing; treating the surface of the perovskite film with an alkylamine organic solution to form a light-emitting layer; and successively preparing an electron transport layer, an electron injection layer and a metal cathode electrode on the surface of the light-emitting layer. The method of the invention is simple and convenient, has a wide range ofmaterials and good repeatability, and can achieve the device performance. Through surface ligand exchange, the flatness and uniformity of the perovskite film are improved, the formation of defects iseffectively suppressed, and the overall performance of the device is significantly improved.

The invention discloses an abrasion resistant drilling tool plated with a diamond layer and a manufacturing technology thereof, an extremely thin deposit layer containing the diamond is obtained by electroplating on a conductive metal substrate, and the extremely thin deposit layer plated with the diamond is then bonded to a part of the drilling tool where the abrasive resistance needs to be intensified, forming the abrasion resistant drilling tool plated with the diamond layer. The manufacturing technology thereof comprises the steps of: processing the conductive metal substrate prior to the electroplating, plating the thin diamond deposit layer on the substrate by electroplating, peeling off the diamond electroplating deposit layer from the substrate, and bonding the diamond electroplating deposit layer to the surface of the drilling tool with a strong adhesive to form the abrasion resistant drilling tool plated with the diamond layer. The invention provides a method for conveniently and rapidly applying the plating diamond layer to manufacturing a plurality of strong abrasion resistant drilling tool, and the manufacturing technology thereof is quite easy and readily.

The invention provides a preparation method of a perovskite battery with an n-type doped electron transport layer and a TiO2 layer. The method comprises the following steps of: (1) FTO transparent conductive glass substrate cleaning and TiO2 thin film preparation: an upper TiO2 layer is deposited on a treated FTO transparent conductive glass substrate, and the FTO transparent conductive glass substrate with the deposited upper TiO2 layer is arranged in a drying oven for later use; (2) Bis-PCBM and DMC composite film preparation; (3) spin coating treatment on the FTO transparent conductive glass substrate with the deposited upper TiO2 layer; (4) perovskite film preparation; (5) Spiro-OMeTAD thin film preparation: a Spiro-OMeTAD solution is spin coated on the FTO transparent conductive glass substrate in step (4); and (6) MoO3 and Ag electrode preparation: an MoO3 electrode and Ag electrode are formed on a Spiro-OMeTAD thin film through evaporation. With the method of the invention adopted, the electron mobility and conductivity of a thin film can be improved; the photoelectric conversion efficiency of a device can be improved; the surface of the thin film is smoother, so that the thin film can be used as a good substrate for the deposition and growth of a perovskite layer in subsequent processes; and the degradation process of the perovskite layer can be slowed down, and the stability of the device can be improved.

The invention discloses an energy-saving environment-friendly polymer-based composite material matrix of a diamond circular saw blade. The energy-saving environment-friendly polymer-based composite material matrix comprises a matrix and an embedded part, wherein the embedded part is embedded on the outer circumference of the matrix; the matrix is made from a polymer-based composite material; and an exposed part external end face of the embedded part is welded with at least one diamond saw tooth. With adoption of the polymer-based composite material, about 2 / 3 weight is reduced compared with the traditional steel-based body, so that the starting power and self consumption of the motor are greatly reduced, and the manufacturing process is very simple and convenient, thereby the energy-saving and low-carbon effect stands out. In addition, an interface between a large number of resins and reinforced fiber exists in the base body, so that the noise when the stone is sawn is reduced obviously, and the working environment is improved.

The invention provides a low-frequency broadband sound absorption material based on an asymmetric film-type sub-wavelength structure. The material comprises several sound absorption units. Each sound absorption unit comprises a framework, a flexible film and eight mass blocks with different weights. The framework is arranged in a window style. The flexible film is fixed to the framework in a tensioning mode so as to form four equivalent noise elimination units. Each two blocks of the eight mass blocks form one group and the groups of the blocks are fixed to films of the noise elimination units in a one-to-one correspondence mode respectively. The several sound absorption units are expanded towards peripheries in a framework plane and are spliced to form the low-frequency broadband sound absorption material based on the asymmetric film-type sub-wavelength structure. A whole structure is a quadrilateral sound absorption unit material mainly formed by the flexible film and a mass block system. Because of asymmetric distribution of the mass blocks, a dynamic characteristic shows that a plurality of frequency points with zero equivalent mass density are possessed, which means that a plurality of peak values of sound absorption coefficients are possessed. Under an influence of an asymmetric mode, total elastic strain energy of the structure is higher than strain energy of a symmetric mode in a full frequency range.

The invention relates to a rapid cooling and rapid heating burner brick and a preparation method thereof. The raw material components are: 24% to 30% of aluminum powder, 14% to 31% of high alumina bauxite aggregate and bauxite fine powder, and chromium oxide powder 45% to 56%, plus 1% to 2% of sodium fluoride powder and a binder with a ratio of 10g: 0.6 to 1.4ml of raw materials. After mixing the raw materials evenly, make compacts under the pressure of 60-100MPa; dry at 200-300°C for 2 hours; ignite the ignition agent with energized tungsten wire to self-sinter the compacts; Processed into burner bricks. After testing, the compressive strength at room temperature is 30-50MPa, the thermal conductivity is 0.9-1.1W / m·℃, and the refractoriness is 1790-1800℃; under the condition of 800℃ water cooling, the thermal shock stability is more than 50 times, which avoids the sharp change of furnace temperature As for the problem of peeling, no low-melting material is produced during use, and the service life can reach more than half a year, and the preparation process is simple, easy to operate and control.

The invention provides a method of manufacturing a high-efficiency inorganic quantum dot light emitting diode device. The method comprises the following steps: an ITO transparent conductive glass substrate is cleaned and dried; PEIE is diluted by using ethanol to a concentration of 0.05-0.1 wt%, and a PEIE solution is then applied to the substrate to form a thin film around 10 nm; the PEIE is then doped to a ZnO solution, the doping concentration is 0.05-0.1 wt%, and a mixed solution of ZnO:PEIE is applied to the substrate; inorganic quantum dots dissolved in toluene are then applied; and the substrate is finally placed in a vacuum chamber, vacuum evaporation of CBP, CBP:MoO3, MoO3 and Al is carried out sequentially, and a quantum dot light emitting diode device is thus obtained. PEIE / ZnO:PEIE is adopted as an electron injection layer, the injection barrier of electrons is reduced, the electron injection efficiency is improved, and the whole efficiency of the device is greatly improved.

The invention provides a Chinese herbal medicine laying hen feed and a preparation method thereof. The preparation method comprises the following steps: selecting glossy privet fruits, motherwort, astragalus membranaceus, pericarpium citri reticulatae powder, pine needle meal, Radix Puerariae, red date powder and honeysuckle to prepare Chinese herbal medicines; and after stir-frying, mixing the Chinese herbal medicines with corn, bean pulp, pricklyash peel seeds, saccharomyces cerevisiae fermented distiller's grains, Chinese herbal medicines, fruit residues, grease, table salt, amino acids, stone powder, calcium hydrophosphate, probiotics, composite vitamins, composite trace elements, a composite enzyme preparation, choline chloride and baking soda according to a certain proportion, and carrying out crushing and sieving. The laying hen feed can effectively improve the immune function of laying hens, enhance the disease resistance of the laying hens and reduce the infection rate and death and culling rate of the laying hens, so that the laying rate of the laying hens is increased, the egg laying peak time is prolonged, egg laying products are improved, and the raw material is wide in source, low in cost and suitable for large-scale production and application.

The invention discloses anti-sticking wet dressing for promoting the healing of a burn wound and a preparation method of the anti-sticking wet dressing. The wet dressing is prepared from a polypropylene non-woven fabric and compound hydrogel stuck on the polypropylene non-woven fabric, wherein the compound hydrogel can be used for self-adjusting a wet environment of the burn wound and is prepared from a colloidal solution of sodium carboxymethyl cellulose, sodium alginate, chitosan and propylene glycol. The wet dressing is prepared from four substances including the propylene glycol, the sodium carboxymethyl cellulose, the sodium alginate and the chitosan, wherein the sodium carboxymethyl cellulose and the sodium alginate are water-soluble high polymers and a mixed reaction system of the sodium carboxymethyl cellulose and the sodium alginate is used as a water-soluble matrix; when medicines are replaced, the water-soluble matrix can be dissolved by liquid; the chitosan is used as an anti-sticking component, is dissolved into the water-soluble matrix of the sodium carboxymethyl cellulose and the sodium alginate through high-strength mechanical stirring and plays a role in sticking resistance in a process of sticking the wet dressing on the wound.

The invention discloses an exudate self-adjusting composite dressing and a preparation method thereof. The dressing consists of a contact layer composed of a porous super-hydrophobic modified polyurethane film and a porous antibacterial super-hydrophilic composite film, water absorption foam serving as a middle layer, and a breathable adhesive tape serving as an outer layer. The preparation methodcomprises the following steps: superposing and combining a polyurethane film subjected to graft modification to realize super-hydrophobicity and an antibacterial super-hydrophilic film taking polyvinyl alcohol as a base material so as to form the contact layer, and performing punching, wherein the pore diameter is 50-300 microns; and bonding the contact layer with the medical water absorption foam, and bonding and covering a breathable film on an obtained product. According to the exudate self-adjusting composite dressing, through the design of the super-hydrophobic film / antibacterial super-hydrophilic contact layer and the coordination effect of the four layers, the exudate self-adjusting function is achieved, wound exudate can be absorbed, the surface of a wound is kept moist, wound healing is promoted, impregnation can be prevented, bacteria are resisted, infection is prevented, and surrounding skin is protected.

The invention relates to one kind of food and a preparation method thereof, particularly to anti-alcoholism vinegar and a preparation method thereof. 50 to 60 parts of plum vinegar, 40 to 50 parts of rice vinegar and 10 to 20 parts of haw vinegar are mixed and blended; and fermentation after mixing and blending is carried out for one to three months and then anti-alcoholism vinegar is prepared, wherein the acetic acid degree of the prepared anti-alcoholism vinegar is 4.5 to 5.5 degrees. According to the anti-alcoholism vinegar and the preparation method provided by the invention, the rice vinegar originating from ancient times and the fruit vinegar invented in modern times are combined, so that the anti-alcoholism curative effect is improved greatly and the alcohol effect dispelling time is shortened, so that the drunk person can become sober quickly. Moreover, the toxicant elimination capability of the liver can be enhanced and thus the liver burden is reduced.

The invention relates to an electrostrictive spiral artificial muscle and preparation and application thereof, the electrostrictive spiral artificial muscle is composed of a sheath core structure, a sheath layer is composed of a carbon nanotube film, and a core material is a nylon wire. When the spiral artificial muscle is actually used, the spiral artificial muscle can be designed into differentlengths according to requirements. Voltages of different magnitudes can be output through the control circuit, so that the contraction rate and the output stress of the spiral artificial muscle are controlled. Electric energy is converted into mechanical energy in a flexible mode, and the artificial muscle is easy to control, safe and environmentally friendly.

The invention relates to a method for smoking a textile fiber material, which comprises the following steps: (1) selecting a container with a structure of an upper layer and a lower layer and a flue pipe, wherein a clapboard between the upper layer and the lower layer of the container is provided with air holes; (2) hanging or spreading an object to be smoked on a support object on the upper layer of the container; (3) placing a recovered natural waste object on the lower layer of the container, burning the object in blind fire, completing that the smoke is permeated from the lower layer of the container to the upper layer of the container through the clapboard with holes, passes through the object to be smoked and is discharged from the flue pipe, and setting a chemical or physical color change time generated under the smoking and heating actions on the surface layer of a yarn or a textile; and (4) after the smoking time is out, taking out the object to be smoked, and soaking the object in a tap water tank to wash floating craps on the object to be smoked for dehydration. The method does not need adding any chemical pigment for treatment, reduces side effect of chemicals on a human body and wastewater processing, is more environment-friendly, has simple and quick manufacturing process, and is practical in various fiber art designs.

The invention discloses a preparation method of continuous adhesion hydrogel, the hydrogel obtained by the preparation method and application of the hydrogel. According to the method, chemical-physical double-network cross-linked hydrogel is prepared from a blended solution with acrylic acid, chitosan and tannic acid as main components. The polymer with positive charges is bridged by using specific carboxyl on the surface of the tissue, and a hydrogel-tissue interface which is continuously adhered in a physiological environment is constructed on the surface of the hydrogel matrix through multiple bonding by using an amide synthesis principle. The preparation process is simple and convenient, easy to control and suitable for large-scale industrial production, the used raw materials are easy to obtain and low in price, and the hydrogel has the application potential of a medical adhesive due to high tissue bonding efficiency and long-term stable wet adhesive strength.

The invention discloses a preparation method of high-strength double-network adhesive gel for seawater. According to the preparation method, monomer-dopamine hydrochloride containing a catechol groupis auto-polymerized and then mutually and physically wound with an acrylamide monomer, and a first network structure is constructed through a typical preparation method of polyacrylamide hydrogel; andsodium alginate serves as a natural polymer extracted from an ocean, and a second network structure is further formed under chelating action of calcium ions in the seawater. All raw materials adoptedin the preparation process are easy to obtain and low in cost, a preparation technique is simple and convenient, and operation, control and large-scale industrial production are easy. Through the prepared adhesive gel, in the seawater environment, the process that the glued face is infiltrated by an adhesive and the process that water is dispersed towards the adhesive and bonded can be synchronously completed, and under the premise of maintaining mechanical strength of the gel, stable adhering of the adhesive and stable releasing of active factors in the interface dynamic process are ensuredwhile durable adhesive power is provided for an interface.

The invention provides a manufacturing technology of a color ball with a shrunk printed film. The manufacturing technology comprises the following steps: (1) providing a ball body; (2) preparing different films according to patterns to which different colors correspond; (3) manufacturing corresponding and different screen printing plates according to the different films; (4) providing a transparent film and needed sticky pigments with different colors, and printing the transparent film by using the sticky pigment of each color through the corresponding screen printing plates step by step; (5) manufacturing a transparent film winding ring, namely rolling up the printed transparent film, and bonding the printed transparent film end to end so as to form the hollow cylindrical transparent film winding ring, wherein one surface of the transparent film winding ring with the sticky pigments is outward; (6) sleeving the transparent film winding ring in the middle of the ball body; (7) heating, shrinking and molding, namely heating to enable the transparent film winding ring to be shrunk and adhered on the ball body. The invention also provides the color ball manufactured by the manufacturing technology of the color ball with the shrunk printed film.

The invention discloses an endoscope handle part with an angle control function. The endoscope handle part comprises an endoscope handle composed of a handle upper cover and the handle lower cover, and the handle upper cover and the handle lower cover form a handle cavity which is internally provided with a bending control rotating wheel; a steel wire rope is wound around the bending control rotating wheel, and the two ends of the steel wire rope penetrate through two spring pipes respectively; the bending control rotating wheel is connected with a bending control pusher; the bending control pusher is pushed and can drive the bending control rotating wheel to rotate by an angle, one end of the steel wire rope wound around the bending control rotating wheel is pulled, the steel wire rope of the end pulls the spring pipe connected with the steel wire rope, and then an endoscope tip bending part rotates by an angle. Accordingly, the bending angle of the endoscope tip bending part can be adjusted freely, the endoscope tip bending part is adjusted to the needed angle, surgical operation of a doctor is convenient, and the success rate of surgery is greatly increased.

The invention discloses a sport ball and a sport ball manufacturing method. The sport ball comprises four layers of a rubber liner, a wrapping yarn layer, a gluing layer and a leather layer, wherein the wrapping yarn layer is arranged on the surface of the rubber liner, the exterior of the wrapping yarn layer is covered by the gluing layer, the raw material of the gluing layer is raw rubber sheets, and the gluing layer is vulcanized and glued to the outer leather layer for integration. According to the invention, the sport ball is divided into four layers, the wrapping yarn layer is arranged on the rubber liner, the exterior of the wrapping yarn layer is covered by the gluing layer, the gluing layer is vulcanized and glued to the outer leather layer, and the leather layer is composed of aplurality of leather sheets forming the surface of the sport ball. The gluing layer and the leather sheets are subjected to low-temperature rapid vulcanization treatment to be integrated into a whole,no glue adhesive is used, thus the environment friendliness and firmness of the product are improved to a greatest extent on the aspects of production and use; and no sewing line is used, and productmanufacturing is automatically finished through a mold, thus labor costs are saved and working efficiency is improved.

The invention discloses a manufacturing method of a cast-in-place LOFT floor slab; secondary design and construction are carried out after the civil engineering of a main project is completed; the manufacturing method has the following process steps that steel sheet meshes are welded on I-shaped steel and channel steel; galvanized steel wire meshes are bound with the steel sheet meshes; then dinitrofluorobenzene (DFB) light aggregate is cast; polystyrene boards are buried in the DFB light aggregate in parallel; glass fiber grid cloth is respectively paved in the middle of the DFB light aggregate above and below the polystyrene boards; after being cast, the DFB light aggregate is leveled, compacted and cured; and then the cover surface of an anti-crack layer is plastered with mortar aggregate. According to the manufacturing method, no formwork is needed, the construction efficiency is improved, the weight is light, the strength is high, and the strength requirements can be fully met. The manufacturing processes of the method are easy to operate, so that energy is saved and environment is protected. The manufactured LOFT is light, has high strength and good integral fire-proofing performance, and the manufacturing method is a complete process technology which is easy to promote.

The invention relates to a feed for laying hens and a processing method of the feed, and belongs to the technical fields of feeds and a processing method thereof. The feed for the laying hens is prepared from the following raw materials in parts by weight: 35-45 parts of corn flour, 15-20 parts of wheat bran, 12-20 parts of soybean meal, 10-15 parts of mung beans, 8-12 parts of bone meal, 6-10 parts of conch meal, 8-12 parts of sorghum, 10-15 parts of oat, 8-10 parts of dried marine algae powder, 3-5 parts of egg shell meal, 5-8 parts of heartleaf houttuynia herbs, 6-10 parts of dried orange peel, 5-8 parts of semen strychni, 3-8 parts of atractylodes rhizomes, 4-10 parts of gastrodia tubers, 1-3 parts of salt, and 3-5 parts of beer yeast. The processing method comprises the following steps of (1) weighing various raw materials in parts by weight; (2) performing crushing so that the particle size is 60-80 mesh; (3) performing mixing so as to obtain a mixture; (4) heating the mixture obtained through mixing through a quality modifying device, and then performing curing; (5) performing pelletization; and (6) performing drying. The feed disclosed by the invention is scientific in formula, the making technology is simple and direct, and Chinese herbal medicines are added to the produced feed for the laying hens, so that when the laying hens are fed with the feed, the immunity and the disease resistance of the laying hens are improved, not only can the health and quick growth of the laying hens be promoted, the laying rate is increased, but also the egg quality can be improved. Hormone and antibiotics are not added to the formula, so that the eggs are favorable for human health.

The invention discloses a fruit fly catching device with an attractant having a rapid attracting function, pertaining to the field of pest control. The fruit fly catching device comprises a cup body used for containing attractant having the rapid attracting function, a cup lid, a sun protection cover, a connecting structure and a catching container arranged between the cup body and the cup lid and used for trapping. The cup body comprises a main cup body and an end opening at the upper portion of the main cup body. A first short column and a second short column, used for fixing the catching container and the cup lid, are symmetrically arranged along the end opening. The cup lid comprises a channel arranged on the cup lid and used for ingress of fruit flies, a first fixing part arranged at the center of the upper portion, a first clamping structure and a second clamping structure. The first clamping structure and the second clamping structure are arranged on the periphery of the cup lid and used for clamping the first short column and the second short column. The attractant comprises: (1) fruit and vegetable food, drinks, yeast, edible vinegar, sweeteners, insecticides and water; or (2) drinks, edible vinegar, sweeteners and insecticides. The fruit fly catching device with the attractant having the rapid attracting function is easily assembled and is capable of rapidly trapping fruit flies and is low in manufacturing cost.

The invention discloses a decorative plate and application of the decorative plate. The decorative plate comprises two metal sheets each of which has the thickness being 0.06-0.12mm, an insulating layer I arranged above one metal sheet, an insulating layer II arranged between the two metal sheets, an insulating layer III arranged below the other metal sheet, white board paper bonded on the surface of the insulating layer I and waterproof paper bonded on the surface of the insulating layer III; a metal lead is arranged on each metal sheet, wherein one metal lead is connected with the anode of a power supply, and the other metal lead is connected with a cathode of the power supply. The decorative plate disclosed by the invention can be used for manufacturing advertising boards, propaganda columns, calligraphy and painting mounting frames and ceilings and also can be used as a manufacturing board of electronic science popularization products for infants and children, has the advantages of simple structure, simple and convenient manufacturing process, easy large-scale promotion, wide application scope, convenience in use and the like, can provide attractive and various decoration effects, and can be popularized and applied widely.

The invention discloses a light-steel structure wallboard. The light-steel structure wallboard comprises a light-steel frame, detachable steel fabrics and concrete layers. First hooking and hanging assemblies are arranged on the inner side of the frame, second hooking and hanging assemblies matched with the first hooking and hanging assemblies are arranged on the peripheries of the detachable steel fabrics, the frame is flatly paved with the detachable steel fabrics through the second hooking and hanging assemblies and the first hooking and hanging assemblies, the interiors of gaps of the frame are filled with the concrete layers, and the detachable steel fabrics are wrapped by the concrete layers. According to the light-steel structure wallboard, the reliability is high, machining is convenient, and the installation period is short.

The invention relates to a production method of stone artware, belonging to the technical field of artware. According to the production method of the stone artware, stones are used as a main raw material, the required raw materials are derived from a wealth of sources, the production process is simple and rapid, the technological conditions can be controlled easily, the stone artware produced by the method can be in diversified forms, has stable quality and can meet the requirements of people for the artware.

The invention provides a production process of a copper-aluminum transition wiring terminal with limiting constraint conditions. The process comprises the following steps: step 1, rolling the copper-aluminum composite casting blank into round bars of various specifications; step 2, completing the bright annealing of the round bars through the protection gas added with argon; step 3, fixing a rulerand sawing according to the blanking size, and removing burrs on the surface; step 4, firmly welding the aluminum core of the copper-aluminum composite round bar and the aluminum rod of the transition wiring terminal through friction welding; step 5, making the welded copper-aluminum transition wiring terminal be in a specified thickness within a limit constraint mold; step 6, punching a center hole, cutting edges, and shaping; and step 7, performing oscillation cleaning, drying, packaging, and discharging in the oscillator with grinding balls. The acid-base cleaning process is abandoned andis changed into flowing water flow oscillation cleaning, and the material is forced to flow along the longitudinal direction by adding the limiting constraints, the phenomenon that the bulging is cracked during the flattening process is avoided, the rejection rate is reduced, and the production efficiency is greatly improved.