71results about How to "Meet the quality requirements" patented technology

The invention relates to a lead-free environmental silicon brass alloy bar or alloy ingot and the alloy material comprises the following chemical elements by weight percent: 60%-70% of copper, 0.7%-3.0% of silicon, 0.15% or less of aluminium, 0.25% or less of lead, 0.5% or less of iron, 0.3% or less of tin, 0.1% or less of phosphorus, 0.2% or less of nickel, 0.25% or less of antimony and the balance zinc and unavoidable impurities. The lead content of the silicon brass alloy material of the invention is greatly reduced, which corresponds to the demand of environmental protection and health; the alloy material has good casting property and is applicable to casting, in particular to large-scale gravity casting so as to have broad application prospect in health fittings industry.

The invention relates to a lead-free environment-friendly bismuth brass alloy material suitable for gravity casting. The alloy material comprises the following chemical elements: 57 to 63 percent of brass, 0.1 percent or less than 0.1 percent of lead, 0.2 to 0.65 percent of aluminum, 0.5 percent or less than 0.5 percent of iron, 0.1 to 3.0 percent of tin, 0.4 to 3.0 percent of bismuth, 0.5 percent or less than 0.5 percent of nickel, balance zinc and unavoidable impurities. The lead content of the brass alloy material of the invention is greatly reduced and conforms to the environmental protection and health requirements, and meanwhile the lead-free environment-friendly brass alloy material has excellent casing performance, is suitable for casting, in particular for larger-scale gravity casting, and has extensively application prospect in the sanitary-ware industry.

The invention provides a processing method for reducing the astringent taste of red tea. In a process of kneading the red tea, cellulose liquid is uniformly sprayed and applied to kneaded red tea leaves, and other withering, fermenting and drying processes are carried out according to the conventional red tea processing method. The processed red tea has remarkably reduced astringent taste, remarkably increased pure and wild degree, has remarkably improved quality, and accords with the requirement of the consumer for the quality of the red tea.

The invention discloses a method for controlling a dimming signal and a device and a system thereof The method comprises the steps that an MCU acquires brightness data transmitted by a T_con board and PWM signal data transmitted by a mainboard; and the MCU determines adjustment of the current brightness of a display screen according to the PWM signal data, and the adjusted brightness of the display screen is determined according to the brightness signal data and the PWM signal data if the requirement for adjusting the current brightness of the display screen is determined. According to the method, the requirements of LED liquid crystal backlight televisions of different sizes and different lamp areas can be met, the requirements for the frame quality of the televisions having an HDR function can be met, and the problems of trailing, ghosting and water ripple of images can be solved; the contrast and the depth of field of the images can be enhanced, the visual perception of consumers can be enhanced and the development of the liquid crystal televisions can be promoted; and partitioning control of liquid crystal television LED lamps can be realized, power consumption of the televisions can be reduced and thus the method is energy-saving and environment-friendly.

The invention relates to a lead-free environment-friendly bronze alloy material suitable for gravity casting. The alloy material comprises the following chemical elements: 0.1 percent or less than 0.1 percent of lead, 0.005 percent or less than 0.005 percent of aluminums, 0.15 percent or less than 0.15 percent of iron, 6.0 to 8.0 percent of zinc, 4.0 to 6.0 percent of tin, 1.0 to 3.0 percent of bismuth, 1.0 percent or less than 1.0 percent of nickel, 0.05 percent or less than 0.05 percent of phosphorus, 0.01 percent or less than 0.01 percent of silicon, 0.25 percent or less percent of arsenic, balance copper and unavoidable impurities. The lead content of the bronze alloy material is greatly reduced and conforms to the environmental protection and health requirements, and meanwhile the lead-free environment-friendly bronze alloy material has excellent casing performance, is suitable for casting, in particular for larger-scale gravity casting, and has extensively application prospect in the sanitary-ware industry.

The invention belongs to the technical field of electroplating, and particularly relates to a cyanide-free alkaline copper electroplating solution, a preparation method thereof and application thereofin a flexible printed circuit board. The cyanide-free alkaline copper electroplating solution comprises the following components in concentration: 120-200 g/L of copper salt, 30-50 g/L of main complexing agent, 10-20 g/L of auxiliary complexing agent, 1-10 g/L of brightener, 2-8 g/L of amphoteric surfactant, 5-60 g/L of pH value regulator and the balance of deionized water. The cyanide-free alkaline copper electroplating solution of the invention has good dispersion performance and covering performance, the TP value reaches more than 180 percent, the crystallization of a plating layer can berefined, the binding force between a copper layer and a board surface is improved, the performance of the copper plating layer is optimized, and the quality requirement of the flexible printed circuitboard is met.

The invention discloses a preparation method of a high-strength waterproof color ardealite brick, which comprises the steps of selecting materials by a conventional method and mixing to obtain a mixed raw material of an ardealite brick; adding pigment and stirring; adding water and stirring; making the mixed slurry into a brick blank by a hydraulic vibration forming machine; curing with saturated steam to obtain a finished product. The color ardealite brick prepared by the method disclosed by the invention has the advantages of uniform tone, low cost, high strength, good water resistance and corrosion resistance and good durability and is suitable for wall construction and pavement construction. In the method disclosed by the invention, by improving the raw materials and method, the problems that the utilization rate of the ardealite brick is low in the prior art, the cost of the color brick is high and the color brick is not strong enough and not durable and the raw materials of the ardealite brick are not easily mixed with the pigment and consequently the tone is not uniform and the strength is not high are solved; meanwhile, the problems of unsatisfactory water resistance and durability of the ardealite brick are solved unexpectedly, a new path of ardealite utilization is created, and the problems of high cost and quality defect of color bricks are solved.

The invention discloses a thin type full automatic adhesive tape winding machine head and device and a method therefor and belongs to the field of automation equipment. A full automatic winding devicefor winding adhesive tapes on positions with drops such as corrugated pipes and root parts of wire bodies is designed in the invention to solve problems in technologies of the prior art. The full automatic winding device has a full automatic winding function which enables the device to adhere start points of adhesive tapes, automatically cut off and close up end points of the adhesive tapes, andperform other operation; research is conducted on a full automatic winding technology, full automation of a whole winding process is realized, wire harness quality can be ensured, and automobile wireharness production efficiency is improved markedly. When the thin type full automatic adhesive tape winding machine head and device and the method therefor are applied to high voltage wire harness processing industries for new energy automobiles, stable operation can be maintained on a production site; via a helicoid type wrapping mode, positions with drops on wire harnesses can be wound with adhesive tapes, good tailing close-up effects can be exerted, and quality requirements for wire harness production technologies can be completely met.

The invention relates to corn weak flour and a production method thereof, and belongs to food processing technologies. The production method comprises: screening mature corn grains to remove impurities, performing dry-method decrustation, crushing, acid-fat combined weakening, rolling grinding, high-temperature extrusion, drying, ultrafine grinding and the like to produce corn weak flour possessing good bonding force and plasticity. The corn flour of the invention is suitable for adjusting of plastic dough used to process of wheaten food such as biscuits, cakes, crisp desserts and the like, so that corn is widened in application scope. The production method has mild conditions, no pollution, no generation of waste residues, waste gases and harmful substances; and no chemical reagents are used, so that the product is safe to take.

The invention provides cooking utensils, a rice quality detection method, computer equipment and a computer readable storage medium. The cooking utensils comprise: an inner pot, and a rice box assembly connected to the inner pot. The rice box assembly comprises: a rice box for containing rice; a smell sensor arranged on the rice box, connected to the interior of the rice box, and used for detecting the smell in the rice box. The cooking utensils detect the smell of gas in the rice box in real time by arranging the smell sensor on the rice box, and reminds the user to check whether the rice inthe rice box has been mildewed, and take measures in time when a smell change is detected. On the one hand, countermeasures can be taken in time to avoid waste of food; on the other hand, the rice isfound to be mildewed in time, thereby ensuring the use safety and the health of the user, and improving the user experience.

The invention relates to corn strong flour and a production method thereof, and belongs to food processing technologies. The production method comprises: screening mature corn grains to remove impurities, performing dry-method decrustation and degerming, crushing, acid-fat combined weakening, thermal insulation rolling grinding, high-temperature extrusion, drying, ultrafine grinding and the like to produce corn strong flour possessing good bonding force, plasticity and extensibility. The corn flour of the invention is suitable for adjusting of plastic dough used to process of staple food such as breads, steamed breads, noodles and the like, so that corn is widened in application scope. The production method has mild conditions, no pollution, no generation of waste residues, waste gases and harmful substances; and no chemical reagents are used, so that the product is safe to take.

The invention discloses a skin-touch and scratch-resistant film and a preparation method of a skin-touch and scratch-resistant surface film and belongs to the field of functional films. The preparation method is simple in process and high in safety, and is capable of reducing cost and preparing the skin-touch and scratch-resistant film with high ductility. The skin-touch and scratch-resistant filmcomprises a nano coating, a skin-touch and scratch-resistant surface film, a water-based ink layer and a PVC printing bottom film which are successively arranged from top to bottom; the skin-touch and scratch-resistant surface film takes a delustering sheet as a substrate; an adhesion layer, a transparent layer and a skin-touch layer are successively arranged on the surface of the substrate frombottom to top; a coating of the transparent layer is prepared from the following component in percentage by mass: 10-15% of reactive diluent, 40-80% of soft component, 10-30% of hard component, 2-5% of photoinitiator and 0.1-0.5% of flatting agent; a coating of the skin-touch layer is prepared from 3-5% by mass of elastic fluff powder. The preparation method of the skin-touch and scratch-resistantsurface film comprises the following steps: coating a mixed coating on the substrate by using a micro-gravure precise coating method, drying by using a suspended drying box, and finally carrying outoxygen-free ultraviolet curing to obtain the skin-touch and scratch-resistant surface film.

The invention discloses an inductance testing device and method for a wave-absorbing material, and the device comprises an LCR testing instrument, a coil and a test jig. The LCR testing instrument andthe coil are connected by a metal wire. The test jig has upper and lower layers. In other words, the lower table is fixed, the middle part is provided with a groove which enables the coil to be fixedin the groove, and a film is placed on the lower table surface. A lower pressure cylinder drives an upper pressure plate to move up and down and generates a certain pressure, so as to achieve close contact with the upper and lower parts, and then the LCR testing instrument is connected with the coil through the metal wire, so as to measure the inductance value of the wave-absorbing material, anddetermines whether the inductance of the wave-absorbing material is qualified or not through the reference of the "Inductance Value and Thickness Standard Correspondence Table", so as to detect the performance of a product. The device of the invention can achieve the measurement of different points of a single film or measurement of the single film for many times, and achieves 100% quality monitoring on the basis that the wave-absorbing material is not damaged, and enables processed wave-absorbing material to meet the requirements of a customer for the quality.

The invention provides button paint, a button paint mixture, a mirror-like metal button and a preparation technology thereof. The provided button paint comprises 23-26% of polyacrylic resin, 0.32-0.36% of a plasticizer, 2.20-2.40% of amino resin and 62.8-66.5% of a solvent. The provided button paint can enable a button to have excellent wash resistance, dry cleaning resistance and ironing resistance, surface effect accords with quality requirement, and performance meets customer demand. The invention also provides a mirror-like metal button and a preparation technology thereof. The preparation process is simple, and cost is low; diversified products rich in color also can be formed, and market diversification demand is met; and meanwhile, the preparation technology can enable the side surface of the button to reserve blank color, so that new styles are provided, the market diversification demand is met, and limit that practical usability is influenced as a mirror-like metal layer of the side surface can fall off easily also can be avoided.

The invention relates to a production technology for a high-wet modulus cotton pulp, which comprises the following steps: preparing raw materials: taking cotton linters as the raw materials, opening, removing impurities, sending to a cyclone separator by air, fully mixing the raw materials with alkali liquor, and then extruding and dewatering; digesting: feeding slurry soaked with the alkali liquor into a spherical digester for digesting; chloridizing: chloridizing the digested slurry; bleaching: feeding the chloridized slurry into a bleaching tank for bleaching, and concentrating the slurry by using a concentrator before bleaching at the feeding moment; performing acid treatment: performing the acid treatment on the bleached cotton pulp and feeding hydrochloric acid into the bleaching tank in a spraying mode; and obtaining an end product: making by using a paper maker and packing into the end product of the cotton pulp. According to the production technology provided by the invention, a dry impurity-removing machine is firstly utilized to fully separate, scatter and purify the slurry, and then the slurry enters into a spiral sieve drum type extruder, and the cotton fibers are more uniformly soaked in the alkali liquor; the digesting uniformity is increased; the cost of the raw materials is low; the processing process is simple; the operation is convenient; the purchasing scope of the raw materials is wide and is unlimited; the output of modal fiber products is increased; and the development of the modal fiber industry is boosted.

The invention relates to a control method of potato field weed. The method comprises the following steps: S1, before potato planting: S11, deep ploughing to turn up the soil and S12, applying fertilizer; S2, during potato planting: S21, carrying out sealing treatment on the soil; S22, mulching with a film, and S3, after potato planting: S31, carrying out stem and leave treatment after seedling emergence; S32, carrying out cultivation and earthing up; S33, artificial weeding, and S34, carrying out cultivation and earthing up, and S4, carrying crop rotation. The control method of potato field weed has the advantages of high weed control rate, high potato quality, non-pollution and high safety.

The invention relates to a manufacturing method of a furniture decorative material retaining a natural material color. The method comprises the following steps: a, collecting specimens: collecting thespecimens as needed; b, cleaning the specimens: comprising cleaning animal specimens, plant specimens and insect specimens, and cleaning artware thoroughly, too; c, modeling the specimens: placing and fixing the specimens purposeful; and d, packaging the specimens: firstly, placing a packaging material in a mold, placing the modeled specimens in a mold when the surface of the packaging material can bear the weight of the specimens, and then placing pulled cores of preburied connectors or connecting holes around the mold; then, injecting the same packaging material again; and covering the specimens and meanwhile, covering the pulled cores of the preburied connectors or connecting holes; e, curing the specimens: naturally curing the specimens or adding a curing agent and a coagulator to cure; and f, demolding: demolding the specimens which are cured to finally form a furniture decorative material product.

The invention discloses a minitype proton exchange membrane fuel cell combined cooling heating and power supplying system which comprises a proton exchange membrane fuel cell, an inverter, a heat exchanger, a hot water tank, an absorption type refrigerating system and an air inlet processing system, wherein the proton exchange membrane fuel cell is a proton exchange membrane fuel cell stack; the absorption type refrigerating system is a single-effect lithium bromide refrigerator; the circulating cooling water system of the proton exchange membrane fuel cell stack has heat exchange with the heat exchanger; the hot water of the heat exchanger is distributed via the hot water tank; one part of the hot water is fed in the air inlet processing system; one part of the hot water is fed in the single-effect lithium bromide refrigerator; and one part of the hot water is used for domestic hot water. The minitype proton exchange membrane fuel cell combined cooling heating and power supplying system is suitable for being used as the minitype combined cooling heating and power supplying system of small and mini type application occasions similar to apartments, households and the like and further improves the electricity output efficiency of the combined supply system while meeting the demand of multiple functions of a user.

A tunnel type wood veneer drying production line comprises a hot blast stove, a tunnel type drying room body and a chain conveying device, the hot blast stove provides hot air, the chain conveying device conveys wood veneers, the chain conveying device comprises a machine frame, and a first driven shaft and a second driven shaft are installed at the two ends of the machine frame respectively. A first driven chain wheel and a second driven chain wheel are installed at the two ends of the first driven shaft and the two ends of the second driven shaft respectively, a driving shaft with small driving chain wheels at the two ends is installed on the upper portion or the lower portion in front of the first driven shaft, and the small driving chain wheels, the first driven chain wheels and the second driven chain wheels at the corresponding ends are connected in a closed-loop mode through plate type conveying chains. And an automatic clamp for clamping a wood veneer is arranged between chain plates corresponding to each section of chain of the two plate type conveying chains. According to the drying production line, the wood veneers can be vertically conveyed into the tunnel drying room to be dried, the plate type conveying chain circularly rotates in the tunnel drying room, discharging is conducted when the plate type conveying chain rotates to the inlet end, and continuous flow drying operation is achieved.