11results about How to "Guaranteed bonding strength" patented technology

The application provides a microcapsule, a composite fabric, a preparation method of the composite fabric and a summer quilt. The preparation method of the composite fabric comprises the following steps: A1, treating the top surface and the bottom surface of a moisture-permeable layer by using oxygen plasma; A2, adding microcapsules and a crosslinking agent into water to obtain a sticky liquid; coating the sticky liquid on the bottom surface and the top surface of the moisture-permeable layer in a dotted form, bonding the moisture-permeable layer and a moisture-removing and air-permeable layer by taking the top surface of the moisture-permeable layer as a bonding surface, bonding the moisture-permeable layer and a skin-friendly cool layer by taking the bottom surface of the moisture-permeable layer as a bonding surface, drying and hot pressing; the microcapsule comprises a core material and a shell covering the outside of the core material, the core material comprises a glue, and the glue is selected from glue A or glue B or a combination of the two, the glue A is a solvent-free moisture curing reaction type polyurethane hot melt adhesive, and the glue B is an acrylate with an epoxy group and / or a urethane group. The application can guarantee the moisture permeability and air permeability of the composite fabric.

This invention provides a method for manufacturing a diamond wire saw for cutting silicon carbide single-crystal substrates. First, impurities are removed from the diamond micro-powder abrasive. During the abrasive application process, the abrasive density *a* on the steel wire is monitored in real-time via images and videos, and the feeding rate of the diamond micro-powder abrasive in the feeding container is controlled accordingly, achieving a first-step closed-loop control. In the subsequent nickel plating thickening process, the concentricity of the thickened layer on the steel wire and the continuous stability of its thickness are controlled. Before winding, the wire saw diameter *d* is measured using a laser method. Based on the mapping relationship between the wire diameter *d*, abrasive density *a*, and plating thickness *c*, a second closed-loop control is implemented for the entire wire saw production process. The two closed-loop controls operate nested together, ensuring precise control throughout the entire process. The diamond wire saw obtained by this method exhibits high continuous stability in various performance indicators, ensuring good process stability during the cutting of single-crystal silicon carbide substrates, thereby reducing cutting risks.

This invention relates to the field of rubber materials technology. It provides a high-strength, low dynamic ratio EPDM rubber material and its preparation method. The raw materials for the EPDM rubber material, by weight, include: 140-200 parts of EPDM raw rubber, 70-80 parts of filler, 5-40 parts of plasticizer, 2.0-3.0 parts of antioxidant, 1.0-3.0 parts of processing aid, 0.3-0.8 parts of vulcanizing agent, 3.0-4.0 parts of accelerator, 4-6 parts of zinc oxide, and 1.0-2.0 parts of stearic acid. The EPDM raw rubber is oil-extended EPDM rubber, with an oil content of 40-100 parts. This invention provides a high-strength, low dynamic ratio EPDM rubber material with high strength and low dynamic ratio, significantly improving the NVH performance and service life of the product. It can meet the functional requirements of current new energy vehicles for vibration damping rubber products, such as vibration reduction, noise reduction, high load-bearing capacity, and high durability.

The present application relates to a kind of cylindrical electrode paste and its preparation method.A kind of cylindrical electrode paste, by mass parts, including 15-20 parts of anthracite main material, 25-40 parts of residual anode, 3-10 parts of graphite fragment, 25-35 parts of coke, 15-30 parts of organic binder, 6-18 parts of bio-based binder. Among them, organic binder includes medium temperature pitch, anthracene oil, beta resin. Among them, bio-based binder includes carbonized hydrophobic composite modified wood bamboo powder, sodium carboxymethyl cellulose. The carbonized hydrophobic composite modified wood bamboo powder of the present application and sodium carboxymethyl cellulose are compounded to form a bio-based binder, which cooperates with the organic binder to ensure the bonding strength, high temperature resistance and electrical conductivity of the cylindrical electrode paste, while realizing the green and low-carbon utilization of biomass, solving the problems of high temperature failure, moisture absorption and easy caking, and many pores of traditional bio-based binder, reducing the resistivity and production cost, and improving the structural density and use stability.

This invention discloses a hot isostatic pressing densification method for impregnated coating of ball valve cores, belonging to the field of metal surface coating technology. The method specifically includes the following steps: (1) substrate pretreatment and coating preparation; (2) activation of the coating's thermoplastic state; (3) encapsulation-type near-isostatic pressing densification treatment; and (4) unloading, cooling, and finishing. The core of this invention lies in the synergistic effect of "thermoplastic softening" and "uniform pressure application with full spherical encapsulation." By applying a uniform pressure of approximately isostatic pressure to the coating in its thermoplastic state, the internal pores are efficiently closed, improving the coating's density and overall mechanical properties without damaging the coating's integrity or the workpiece's geometric accuracy.

The invention discloses a hot galvanizing method for an extra-high voltage transmission tower steel part, which belongs to the field of hot galvanizing and comprises the steps of hanging materials, pickling with hydrochloric acid to remove rust, cleaning with water, assisting in plating with a solvent, drying, purifying zinc liquid, hot-dip galvanizing and cooling, the zinc liquid purification step comprises slag removal pretreatment, zinc liquid temperature regulation and control, purification agent preparation, purification agent caging and liquid feeding, moving reaction for iron removal and scum removal, and the purification agent comprises industrial-grade metal aluminum wires and water-containing gas substances. The purifying agent is prepared from industrial-grade metal aluminum wires and water-containing gas production substances, wrapped by high-temperature-resistant glass wool cloth into a cluster, loaded into a cage frame made of titanium alloy round steel bars and reciprocatingly moved in the length direction of a zinc pot, so that iron-containing impurities in molten zinc fully react with the purifying agent in the cage frame, and a gray vermicular flocculent reaction product is generated; and then the dross is fished out, so that the purification of iron impurities in the zinc liquid is realized, the liquidity of the zinc liquid is improved, and the adhesive force of a zinc coating on a steel substrate is improved.

The utility model relates to the field of coke oven production technology, a kind of coke oven low load production heating flow control device, a kind of coke oven low load production heating flow control device, including flow orifice plate, the inside of flow orifice plate is equipped with first flow-through hole, the surface of flow orifice plate is equipped with first recess, the inside of first recess is provided with gasket, the inside of gasket is equipped with second flow-through hole, the bottom wall of first recess is equipped with glue dropping groove;The utility model is pasted gasket of specific inner diameter on minimum flow orifice plate, effectively reduces the flow area of flow orifice plate, realizes the fine adjustment of heating flow under low load condition, and the actual operation verifies that flow control precision can improve 89.96%, greatly improves the stability and uniformity of coke oven heating, simultaneously with the setting of glue dropping groove, extrusion ring, give way slot, second recess, extrusion protrusion and other structures, further guarantee the bonding strength of adhesive, sealing effect is higher, easy operation.

This invention relates to a board stacking system and curing chamber, comprising a placement rack and a storage rack. The storage rack has multiple layers of slide rails spaced apart from top to bottom, and each slide rail has a storage box. A stacking module is located at the top of the placement rack and is used to retrieve and store the multiple storage boxes on the storage rack. A lifting module is located in the middle of the placement rack and is used to control the altitude of the stacking module. A glue-applying unit is located at the top of the placement rack, away from the storage rack. This system effectively solves the problems of low space utilization, difficulty in controlling curing conditions, and high labor intensity and low efficiency of traditional natural drying methods. It achieves three-dimensional storage of boards, greatly saves production space, and significantly improves space utilization.

This invention provides a method for preparing coated notebook paper, comprising the following steps: S1, preparing base paper; S2, coating the surface of the base paper to form a coating layer, the coating layer comprising pigments and adhesives, wherein the adhesives comprise polyvinyl alcohol and enzyme-converted starch, comprising 100-110 parts by weight of pigment, 3-5 parts by weight of polyvinyl alcohol, and 10-14 parts by weight of enzyme-converted starch; S3, subjecting the base paper treated in step S2 to a second drying, calendering, and winding process to obtain the coated notebook paper. This application also provides coated notebook paper prepared by the above method. The coated notebook paper prepared by the method provided in this application has a fine surface, smooth writing, minimal pen wear, minimal ink bleeding, and rapid drying. It also possesses good coating strength and anti-bleed-through properties, making it particularly suitable as high-grade notebook paper.

The utility model discloses a novel instrument board glove box assembly structure, including storage box outer plate, storage box inner plate, interlayer storage box, interlayer storage box mounting plate, A type buckle, hidden type hook assembly, USB charging port and magnetic attraction connecting structure. Storage box outer plate and storage box inner plate are connected through positioning column and strong magnetic adsorption and are formed the detachable combination, and interlayer storage box is fixed on the inner plate through mounting plate and buckle, and hidden type hook assembly is composed of hook body, rotating shaft, hook mounting plate and limiting structure, and can rotate between the closing and opening position. USB charging port sets up at the lower part of outer plate, adopts the clamping type double interface structure. The glove box structure is half closed half open type layout, and the level is distinct, and is convenient to dismount, and is various in storage, and appearance is simple, is applicable to the installation of multiple vehicle type instrument board area.

The utility model discloses an automatic point gum machine for inductor, including base, Y axis servo lead screw module, bracket, X axis servo lead screw module, Z axis servo lead screw module and gum gun, the bracket front side is equipped with two groups of inductor positioning mechanism, and each inductor positioning mechanism includes two locating rack, and every locating rack is equipped with installing shaft and locating plate, the inside of locating plate is penetrated with negative pressure pipe, and this negative pressure pipe is connected with air pump and gas collecting cap through three -way solenoid valve, the gas collecting cap is equipped with shunt cavity and four branch channels in, the periphery of locating plate all is equipped with hollow limiting board. The utility model discloses when the air pump is communicated negative pressure pipe through three -way solenoid valve, can adsorb and fix inductor skeleton, avoid the damage caused by mechanical clamping, and when the air pump is communicated limiting board through three -way solenoid valve, and the airflow that blows out from limiting board can effectively remove welding slag or dust before gumming, and accelerates glue solidification after gumming.