11results about How to "High process feasibility" patented technology

The invention relates to high-strength and high-ductility wear-resistant medium manganese steel and a preparation method thereof, belongs to the technical field of ferrous metallurgy, and aims to solve at least one of the problems that in the prior art, medium manganese steel is low in initial yield strength and difficult to meet the application requirements of high-wear-resistant parts, high plasticity and high wear resistance are difficult to consider, and long-term stable service is difficult to realize in a high-wear environment. The invention relates to wear-resistant medium manganese steel with high product of strength and elongation. The medium manganese steel comprises the following chemical components in percentage by mass: 0.35%-0.45% of C, 0.75%-1.25% of Si, 8.5%-11.5% of Mn and the balance of Fe and inevitable impurities. By optimizing the alloy design of the medium-manganese wear-resistant steel, the limitation of insufficient initial hardness of the traditional medium-manganese steel is overcome, so that the medium-manganese steel can have higher surface hardness in a non-work-hardening stage, thereby showing excellent wear resistance in the initial service stage of a structural part; and the problem of high wear rate caused by insufficient hardness of the traditional high / medium manganese steel at the initial stage of wear is effectively avoided.

The invention discloses meta-aramid fibrid and a preparation method thereof, the meta-aramid fibrid comprises, by dry weight, 90.0-99.5 wt% of meta-aramid resin and 0.5-10.0 wt% of an amphiphilic block copolymer additive, and the additive comprises at least one of p-N-methyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone. A first block having an affinity for N, N-dimethylacetamide; and at least one second block having an affinity for water. The preparation method comprises the following steps: adding an additive into a meta-aramid resin polymerization liquid to form a composite resin polymerization liquid; injecting the composite liquid into a precipitation bath composed of N-methyl pyrrolidone or N, N-dimethylacetamide and water through a dispersing device, and after precipitation, carrying out solid-liquid separation, washing and drying to obtain the fibrid. Through the synergistic effect of a specific additive and a precipitation bath system, the microstructure of the fibers is actively regulated and controlled, and the specific surface area and the surface roughness of the fibers are improved, so that the tensile strength and the internal bonding strength of finished paper are remarkably enhanced, and meanwhile, the inherent high-temperature-resistant, flame-retardant and insulating properties of meta-aramid fibers are kept.

The invention discloses an intestinal barrier repairing agent based on glycyrrhizic acid derivatives and a preparation method thereof, and relates to the field of pharmaceutical preparations, the intestinal barrier repairing agent comprises a repairing unit, a regulating unit and a delivery system for controlled release; the repairing unit comprises 18 beta-glycyrrhetinic acid and glycyrrhizol; the regulating unit comprises probiotics and prebiotics; according to the intestinal barrier repairing agent based on the glycyrrhizic acid derivative and the preparation method of the intestinal barrier repairing agent, through sequential release design of firstly adjusting a microenvironment and then executing repairing, the bottlenecks of disordered component release and insufficient synergy in the prior art are overcome; the colon programmed release logic of probiotic pilot colonization and subsequent repair of licorice active ingredients is established for the first time, and the physiological healing rule of the intestinal barrier is better met; by adopting a physically mixed double-layer heterogeneous pellet structure, not only is the activity of probiotics ensured, but also the efficient delivery of insoluble drugs is realized, and the process feasibility is high.

The invention discloses a thermal trigger separation coating structure, a toy production injection mold and an injection molding technology.The injection mold comprises a mold core internally provided with a cavity, the mold core comprises an upper mold core and a lower mold core, the upper end face of the upper mold core is provided with a plurality of first inflow channels and second inflow channels communicating with the cavity, and the lower end face of the upper mold core is provided with a plurality of second inflow channels communicating with the cavity; the mold cavity comprises a frame part cavity and a plurality of part part cavities, a plurality of first glue injection openings are formed between the part part cavities and the frame part cavity, the sectional area of the first glue injection openings from the frame part cavity to the part part cavities is reduced in a gradient mode, and the area of the contact face of the first glue injection openings and the part part cavities is larger than the area of the first glue injection openings. The first flow inlet channel is communicated into the frame part cavity, the second flow inlet channel is communicated into the part part cavity, and a second glue injection opening is further formed between the second flow inlet channel and the part part cavity; the cross-sectional area of the second glue injection port from the second inflow channel to the part cavity is reduced in a gradient manner, and the area of the contact surface of the second glue injection port and the part cavity is as follows.

The invention discloses anacardol modified polymerized MDI, which is prepared by the following method: carrying out hydrolysis reaction on anacardol glycidyl ether under an acidic condition to generate anacardol derived diol; and then reacting the cardanol-derived diol with the polymerized MDI at the temperature of 75-80 DEG C. The invention further discloses polyurethane floor paint based on cardanol modified polymerized MDI. The polyurethane floor paint is prepared from a component A and a component B, the component A is hydroxyl-containing resin or polyol, and the component B comprises cardanol modified polymerized MDI. The floor paint is prepared by reacting cardanol modified polymerized MDI with a hydroxyl-containing substance, a cardanol side chain introduced by the cardanol modified polymerized MDI plays roles of'molecular diluent 'and'space shielding', and the reaction speed and system viscosity of the floor paint are reduced, so that the floor paint has excellent construction performance and low bubble characteristic. The invention further discloses a preparation method of the polyurethane floor paint based on the cardanol modified polymerized MDI.

The invention discloses a dyeing process of tencel / flax blended yarn for light and thin denim fabric. The dyeing process comprises the steps of warp preparation and warp beam dyeing. Sequentially carrying out pre-wetting, multi-stage indigo dyeing, mild oxidation and alternate washing, post-treatment and drying; the warp beam dyeing is specifically as follows: warp yarns sequentially pass through a pre-wetting tank, at least four dyeing tanks, an oxidation zone, a rinsing tank and a post-treatment tank. By controlling the dyeing liquid to be alkalescent, low-temperature and low-tension technologies, chemical damage and physical stretching to tencel fibers are reduced, and fuzzing and broken ends are reduced. The pre-treated activated fiber and the gradient decreasing dye liquor concentration are matched with sufficient oxidation, the dye is promoted to diffuse into the fiber, the good dye penetration effect is achieved, the colored light is pure, and the color uniformity is guaranteed. And the weaving property of the yarn is improved through the post-treatment softening procedure. Due to hydrophilic softness and anti-wrinkle finishing, the yarn is soft and full in hand feeling and perfectly meets the comfort requirement of light and thin denim.

The application discloses cilostazol dextrophan sublingual tablets and a preparation method thereof. The application effectively solves the technical bottleneck that cilostazol cannot be quickly dissolved due to poor solubility by optimizing the types and proportions of excipients; and by creatively adding sodium bicarbonate and citric acid, the dual technical targets of 'fast dissolution + high hardness' are unexpectedly achieved, the bioavailability of cilostazol is significantly improved, and the drug effect of cilostazol can be quickly exerted within the golden treatment period of acute cerebral stroke. Meanwhile, the drug composition process is good in feasibility, the prepared sublingual tablets are excellent in disintegration performance, can adapt to the drug administration needs of patients with dysphagia, completely meet the clinical application and pharmaceutical quality standards, and have significant clinical value and industrialization potential.

The application relates to the technical field of curtain wall and special-shaped section processing, and particularly discloses a double-curved stretch bending processing technology, which comprises the following steps: performing stretch bending evaluation through three-dimensional modeling and a BIM system; performing section optimization on a mold drawing and storing the mold drawing; designing a processing mold according to model parameters; manufacturing a filling strip according to a negative tolerance and installing a chuck mold; performing stretch bending forming and automatic springback compensation through numerical control equipment; comparing and correcting through three-dimensional scanning; performing profiling detection and correction on a special jig; performing aging treatment to improve material performance; performing surface treatment and protection; and uploading full-process data to a cloud platform to realize traceable management. Through the integration of digitalization and intelligentization technology, the application realizes high-precision and batch manufacturing of double-curved and special-shaped sections, and effectively solves the problems of difficult precision control and unstable quality in traditional processes.

The invention provides a process for manufacturing a high-density fine-line flexible circuit board by etching and then plating copper, which comprises the following steps of: selecting a non-adhesive flexible copper-clad plate of which the copper foil thickness is 6 microns, 9 microns, 12 microns or 18 microns, and processing a positioning hole, an element hole, a via hole and a blind hole through numerical control drilling or laser drilling; a dry film double-sided laminated copper-clad plate with the thickness of 20 [mu] m or 25 [mu] m is adopted, exposure is carried out through a laser direct imaging technology and an automatic alignment laser direct writing device, then developing, etching and film stripping procedures are sequentially completed through a vacuumizing etching machine, a semi-finished product with thin lines on the two sides is obtained, and the line width distance of the thin lines can reach 0.0125 mm or above. By adopting a reverse process of etching first and then plating copper, and by utilizing the characteristic that the original thin copper foil (6-18 microns) is easy to etch, the thin circuit with the line width distance of 0.05 mm or below and even 0.0125 mm or above can be accurately manufactured, and the problem that the thick copper foil is difficult to etch the superfine circuit in the traditional process is solved.

This invention provides a plant-based meat product and its preparation method, comprising the following raw materials: 30 parts by weight of textured soy protein, 10-40 parts by weight of pre-cooked emulsion A, and 30-55 parts by weight of emulsion B, wherein the shear strength of the soy protein fibers is 1500-1800 g, preferably 1700-1800 g; emulsion A includes soy protein concentrate and food polysaccharides; emulsion B includes egg white protein and plant protein, wherein the plant protein is selected from one or more of soy protein isolate, pea protein, peanut protein, and wheat protein, preferably soy protein isolate and / or pea protein. The plant-based meat product obtained in this way can achieve a texture very similar to commercially available sausages. This invention does not require the use of transglutaminase, requires no special processing technology, only requires the classification and processing of different raw material components, is simple to operate, has high process feasibility, and low production cost.