54results about How to "Guaranteed bonding strength" patented technology

The high-strength composite corrugated board is characterized by comprising an inner paper layer, a flexible composite layer, an adhesive paper layer, a paper core, a buffer foam board, a reinforced composite layer and a surface paper layer which are sequentially arranged from top to bottom, the upward waveform of the paper core is of a parabola-shaped top structure, and the downward waveform of the paper core is of a triangular vertex angle structure. The corrugated board has the beneficial effects that the compression resistance and the strength of the outer side and the stress buffering performance of the inner side are guaranteed, the overall strength and the bending resistance of the corrugated board are enhanced, the bonding strength is guaranteed by providing a new formula of the flame-retardant polyurethane foam and the waterproof polyurethane adhesive and a combined use method, and the service life of the corrugated board is prolonged. The toughness and the buffering effect are enhanced, the toughness and the pressure bearing capacity of the paperboard are enhanced, and meanwhile the excellent waterproof and flame-retardant effects are guaranteed.

The invention provides a pole piece, a roll core and a battery, relates to the technical field of batteries, and is used for solving the technical problem that an active material layer at a knurling bulge is separated from a current collector due to the fact that the knurling bulge is arranged on the pole piece in the prior art. The pole piece comprises the current collector, a first active material layer and a second active material layer; the current collector has a first surface and a second surface opposite to each other, the first active material layer is arranged on the first surface, and the second active material layer is arranged on the second surface; a plurality of first convex parts are arranged on the first active material layer, and a plurality of concave parts corresponding to the first convex parts are arranged on the second active material layer; the current collector is provided with a bent part and a flat part, the bent part is located between the first protruding part and the concave part, the bent part is provided with a plurality of second protruding parts, and the second protruding parts are arranged on the first surface or the second surface in a protruding mode. The second protruding parts can increase the contact area between the active material layer and the current collector, improve the bonding strength between the active material layer and the current collector, and prevent the active material layer from falling off.

The invention relates to the technical field of tool cladding, in particular to a high-speed multi-laser-head synchronous cladding device for tool machining. Comprising a chassis; the controller is mounted at the top of the chassis; the mounting column is connected to the middle of the top of the chassis; the first electric push rod is mounted in the mounting column; the lifting plate is connected to a telescopic rod of the first electric push rod; the first mounting frame is connected to the side surface of the lifting plate; the telescopic storage frame is mounted at the lower part of the first mounting frame; and the second electric push rods are symmetrically mounted at the upper part of the first mounting frame. Through cooperation of the telescopic storage frame, the flow dividing pipe and the fixing pipe, a proper amount of soldering paste can be smeared to the cutting edge of the tool, then a metal powder material is sprayed to the cutting edge of the tool through the metal powder spraying gun, and the metal powder material can be fixed to the cutting edge of the tool under the action of the soldering paste; and then the cutting edge of the cutter is subjected to laser cladding, so that the phenomenon that the metal powder material splashes can be prevented.

The invention discloses electric equipment, which comprises an electric main body, a cover body and a secondary battery, the power utilization main body is provided with a battery compartment. The cover body is detachably arranged on the power utilization main body and covers the battery compartment. And the secondary battery is arranged in the battery compartment and is electrically connected with the power utilization main body. The secondary battery comprises a shell, an electrode assembly and a bonding piece, the electrode assembly is arranged in the shell, and the bonding piece is bonded with the cover body and the shell. The bonding piece comprises a base layer, a first bonding layer and a second bonding layer. In the first direction, the first bonding layer and the second bonding layer are arranged on different sides of the base layer respectively. The viscosity of the first bonding layer can be reduced, and the first bonding layer is bonded with the cover body. The viscosity of the second bonding layer is fixed, and the second bonding layer is bonded with the shell. And the secondary battery and the cover body are detached by reducing the viscosity of the first bonding layer, so that the detaching convenience is improved. And moreover, the secondary battery can be disassembled under the condition that the wrapping film is cancelled, so that the settable space of the secondary battery is favorably improved, and the capacity of the secondary battery is favorably improved.

The invention relates to the related technical field of oxford fabric production and processing, in particular to coating equipment for oxford fabric production and a process thereof, the coating equipment comprises an equipment support, an upper compression roller and a lower compression roller, and an upper mounting groove and a lower mounting groove are formed in the equipment support; an upper compression roller and a lower compression roller are each composed of an installation shaft, a compression roller body, a first connecting piece and a second connecting piece in a combined mode, and a coating auxiliary mechanism composed of an installation base, a guide rod, an impact head, a reset spring, a stress head, a stress wheel and a pull wire in a combined mode is arranged on the inner side wall of each compression roller body. The impact head is driven by the acting force of the stress head, the stress seat and the reset spring to form an impact effect on the inner side surface of the compression roller main body, so that the coating layer and the oxford cloth can be synchronously subjected to a certain amplitude of vibration effect when being extruded, and the combination effect of the coating layer and the oxford cloth is effectively improved; therefore, the final service life of the cloth is effectively ensured.

This application relates to the field of silicone rubber composition processing, specifically disclosing a high-adhesion room temperature curing addition-type silicone rubber composition and its preparation method. The high-adhesion room temperature curing addition-type silicone rubber composition comprises: 100 parts of vinyl polysiloxane, 3-15 parts of crosslinking agent, 0.1-2 parts of catalyst, 8-35 parts of tackifier, 0.5-5 parts of tackifier accelerator, 5-30 parts of reinforcing filler, and 0.01-1 parts of inhibitor. The tackifier includes silane coupling agents containing epoxy and alkoxy groups and MQ silicone resin containing vinyl and alkoxy groups. The preparation method involves: mixing the vinyl polysiloxane with the reinforcing filler, dehydrating and cooling to obtain a base rubber; adding crosslinking agent, tackifier, tackifier accelerator, and inhibitor to a portion of the base rubber, mixing and degassing to obtain rubber compound B; adding a platinum catalyst to a portion of the base rubber, mixing and degassing to obtain rubber compound A; mixing rubber compound A and rubber compound B at a ratio of 1:0.8-1.2, degassing, and curing to obtain the finished product; it has the advantage of high bonding strength.

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.

The utility model relates to the technical field of building engineering main body outer wall nano-plastic outer flitch plate engineering construction, in particular to an auxiliary supporting device for nano-plastic outer flitch plate installation, which solves the problem that in the prior art, when an outer flitch plate is installed, supporting is not stable, and comprises an outer flitch plate supporting assembly, and fixing assemblies are arranged at the two ends of the outer flitch plate supporting assembly. The fixing assembly comprises an L-shaped fixing piece, the transverse part of the L-shaped fixing piece is provided with a reinforcing mechanism matched with the inner side of the wall, and the vertical part of the L-shaped fixing piece is connected with the outer flitch supporting assembly. The supporting device has the advantages that the nano-plastic outer flitch plate is stably erected on the bearing steel pipe, it is guaranteed that the inner side adhesive mortar cannot slide relative to the reinforced concrete wall body due to the dead weight of the plate, and therefore the bonding strength between the plate and the wall body is guaranteed, and the cracking and falling risks are avoided; a single person can install the whole plate and punch the anchor bolt without cooperation of others, so that the working efficiency is improved, and the construction progress is accelerated.

The application discloses an intelligent imaging generation system and method, which realizes closed-loop control of spraying quality by real-time linkage adjustment of spraying mechanical arm and imaging equipment parameters through a dynamic parameter adjustment module, and combines a defect prediction and optimization decision module and a multi-modal process knowledge base. The system integrates a high-resolution visual sensor, a capacitive thickness detector and a temperature and humidity sensor, fuses multi-source data by using a Kalman filtering algorithm, and dynamically adjusts the speed of the mechanical arm, the nozzle pressure and the imaging gain coefficient. The defect prediction module simulates coating defect morphology based on a physically constrained generative adversarial network and generates a process optimization instruction set through reinforcement learning. The multi-modal process knowledge base stores an associated model of material characteristics, environmental data and defect patterns, supports incremental learning and historical data decay update. Through dynamic parameter collaborative optimization, defect prediction prepositioning and multi-modal data fusion, the spraying quality detection efficiency and coating consistency are improved, and the rework rate is reduced.

The application discloses a stone curtain wall with an assembling structure and an assembling method thereof, and relates to the technical field of buildings. The stone curtain wall comprises a wall body, a keel assembly, a first stone plate, a second stone plate, an elastic sealing element and a lamp strip assembly. The second stone plate under the action of gravity is hung on the keel assembly by using the cooperation of each hook part and each hanging groove. Then, the elastic sealing element and the first stone plate are used to cooperate with the first hook part under the action of gravity, the tongue block of the second stone plate is clamped in the installation groove in the up-down clamping mode, the second stone plate is firmly installed, and the second inclined keel is effectively prevented from being fixed by manual work or other tools in the curing process of the back adhesive, the hollow space between the second stone plate and the second inclined keel is effectively reduced, the effective area and the bonding strength of the back adhesive are ensured. In addition, the lamp strip assembly is used as the corner assembling element between the stone plates in the stone curtain wall, the lamp strip assembly is organically integrated into the stone curtain wall, the stone curtain wall has the night scene function, and the structural strength of the stone curtain wall is improved.

The invention relates to a film bonding technology for a heat dissipation plate of a special-shaped structure and a printed board. The film bonding technology comprises the steps of S1 film bonding technology formulation, S2 bonding tool design, S3 tool production, S4 film carving data processing, S5 film carving, S6 film poking, S7 cold bonding, S8 tool positioning, S9 preheating, S10 hot pressing, S11 cooling, S12 tool dismounting and S13 processing. According to the invention, through a parameter formulating technology, formulated process parameters need to be combined with the force applied to the cold plate stress area of the special-shaped structure and the area in contact with the printed board during hot pressing, so that the force can meet the film adhesion pressure requirement, the adhesion assembly cannot be damaged in the hot pressing link, the heat dissipation board and the printed board are adhered together, and the adhesion peeling strength requirement is met.

The utility model belongs to prefabricated building technical field provides a kind of precast wall with embedded connecting piece, the precast wall with embedded connecting piece includes mounting plate, several screw sleeves and several hooking ribs, mounting plate is equipped with several mounting holes, one side is joint surface, joint surface is used to be combined with wallboard;Several screw sleeves are one-to-one corresponding with mounting hole, screw sleeve protrudes joint surface and mounting plate fixed connection through mounting hole;Several hooking ribs are spaced apart in the side of the joint surface of mounting plate, one end is fixedly connected with joint surface, and the other end is provided with a hook.The precast wall with embedded connecting piece provided by the utility model, the hook of hooking rib and concrete form mechanical engagement, avoid the integral displacement of connecting piece along screw sleeve axis direction;After screw sleeve and mounting plate fixed connection, the bolt tightening force borne by screw sleeve, wallboard splicing stress can be transmitted to hooking rib by mounting plate, then by hooking rib disperses to wallboard concrete, greatly improves the combination strength of screw sleeve and wallboard.

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.

The invention discloses a ceramic coating marine cable connector, which comprises a connector shell, a conductive pin and an end cover, a composite protective coating system is arranged on the outer surface of the connector shell and the matching surface of the end cover, and a metal protective coating is arranged on the contact surface of the conductive pin. According to the ceramic coating marine cable connector and the preparation method thereof, the problem of galvanic corrosion of dissimilar metal is effectively solved through micro-arc oxidation / electronickelling differentiation bottom layer treatment, physical barrier and intelligent response cooperative protection is achieved through the graphene composite middle layer, a complete protection system is formed in combination with the super-hydrophobic top layer, and the corrosion resistance of the connector is improved. And finally, while the bonding strength of the coating is ensured, the corrosion-resistant life and maintainability of the connector in a marine environment are remarkably improved.

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.

The utility model discloses a high-light-transmission plastic packaging film which has excellent gloss and light transmission, high weather resistance and good wear-resistant and scratch-resistant effects. Comprising a base material, a first diffusion layer, an anti-reflection layer, an anti-ultraviolet layer, an anti-oxidation layer, a damp-proof layer, a wear-resistant layer and a scratch-resistant layer are sequentially arranged on the upper surface of the base material, a second diffusion layer and a transparent adhesive layer are sequentially arranged on the lower surface of the base material, and the base material is made of a high-transparency PET sheet.

The present application relates to plate processing equipment technical field, specifically to a kind of self-adapting type plate linear edge banding system, including the edge banding machine main body being provided with defoaming unit, defoaming unit is used to prevent edge banding tape to fall off, defoaming unit includes cavity, cylinder, clamping plate, motor and connecting rubber membrane, cylinder is installed on edge banding machine main body can drive cavity to move, cavity is opened with the air pipe being connected with vacuumizing equipment on, clamping plate is respectively arranged in the upper and lower sides of cavity, clamping plate is used to clamp plate and clamping plate and cavity constitute the moving pair in vertical direction, motor is set in the rear side of cavity and is driven clamping plate by swing arm with roller, connecting rubber membrane is connected with the rear side of clamping plate located in the different sides of cavity, one end of air pipe is communicated with connecting rubber membrane, it can be self-adapting different thickness plate without frequently replacing adapter, while eliminating air bubble can make hot melt adhesive form invasive interface in plate edge, help to improve the bonding strength of edge banding tape and plate and avoid peeling.

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 present invention relates to a triangular control arm for a shock-absorbing automobile suspension system and a production process thereof, comprising an arm body, wherein an upper connecting part, a left connecting part and a right connecting part are arranged at one end of the arm body, the upper connecting part is provided with a ball pin linkage device, the left connecting part and the right connecting part have the same structure and are both provided with a rod pin linkage device, the rod pin linkage device comprises an outer tube body, characterized in that: the arm body comprises a cover plate and a bottom plate, a receiving cavity is arranged between the cover plate and the bottom plate, the receiving cavity is provided with a buffer mechanism, the buffer mechanism comprises a first mounting seat, a buffer spring and a buffer component, the buffer component is linked with the cover plate relative to one end of the buffer spring, and the beneficial effects of the present invention are as follows: a triangular control arm for a shock-absorbing automobile suspension system is provided, which delays deformation of the arm body and prolongs its service life.

The invention discloses a manufacturing method of a rotor type compressor slip sheet without a compound layer. The manufacturing method comprises the following steps: 1) selecting a proper metal material to mechanically process a compressor slip sheet substrate; (2) the compressor slip sheet substrate is subjected to surface strengthening through a compound-layer-free technology, and the compressor slip sheet substrate with the strengthened surface is obtained; and (3) the surface of the compressor slip sheet substrate obtained in the step (2) is coated with a wear-resistant coating through the vapor deposition technology, the wear-resistant coating meeting the requirement of an air conditioner compressor is prepared, and the qualified compressor slip sheet is obtained.

The utility model relates to the technical field of desert control equipment, in particular to a sapling transplanting device suitable for sand land, which comprises a shell, the shell comprises a shell body, a planting box is mounted in the shell body in a threaded manner, the planting box comprises a hollow double-layer box body, and a protective cover is mounted at the top of the double-layer box body in a sliding manner. According to the utility model, the shell, the double-layer box body and the protective cover are made of degradable materials and do not need to be disassembled after being used; the groove is formed in the bottom end of the shell, so that holes are formed in the groove of the shell and matched with the air holes in the bottom of the inner cylinder to guide root systems of saplings to extend downwards, and the survival rate of the saplings is guaranteed; by arranging the sand stabilization layer and the fixing pieces, the bonding strength of the shell and sandy soil is guaranteed, and wind erosion is prevented; a water retention layer is arranged and water is stored between the bottom of the planting box and the shell, so that water supply to saplings is guaranteed; by arranging the multiple circles of pre-cutting grooves, saplings of different ages can be adapted, and meanwhile the growth requirements of the saplings are met.

The utility model relates to a cold-proof device for nursery stock planting, which comprises a cold-proof frame and a cold-proof cover sleeved outside the cold-proof frame, the cold-proof frame comprises a top frame and a bottom frame which are oppositely arranged and a support upright post positioned between the top frame and the bottom frame, and the lower end of the support upright post is detachably connected with the bottom frame. The upper ends of the supporting stand columns are detachably connected with the top frame, the bottom frame is arranged on the ground and fixed to the ground through a plurality of ground anchors, the cold-proof frame is sleeved with the cold-proof cover, and the bottom edge of the cold-proof cover falls on the ground and is continuously buried and covered with soil in the circumferential direction. According to the cold-proof device, prefabrication is achieved when the cold-proof device leaves a factory, on-site construction and operation are convenient, the efficiency of cold-proof construction of nursery stocks can be remarkably improved, and the cold-proof device has high application and popularization value.

The invention belongs to the technical field of extrusion coatings, and particularly relates to a tubular low-density polyethylene composition for an extrusion coating and a preparation method of the tubular low-density polyethylene composition. The low-density polyethylene composition is prepared from the following raw materials in parts by weight: 90 to 95 parts of low-density polyethylene, 5 to 10 parts of ethylene-vinyl acetate copolymer, 0.05 to 0.10 part of grafting agent, 0.005 to 0.010 part of initiator and 0.05 to 0.10 part of antioxidant, and the sum of the parts by weight of the low-density polyethylene and the ethylene-vinyl acetate copolymer is 100. The low-density polyethylene composition disclosed by the invention has good tensile and adhesive properties, can be processed at a high speed, is relatively small in shrinkage, and overcomes the defects of poor adhesion and large shrinkage of LDPE (Low-Density Polyethylene) of an original tubular method.

The invention discloses a wall building robot which comprises a frame body, a first driving mechanism, a mortar throwing mechanism, a mortar conveying pipe and a mortar plastering mechanism. The first driving mechanism is mounted on the frame body; the mortar throwing mechanism is connected with a first output part of the first driving mechanism, so that the mortar throwing mechanism attaches mortar to a wall surface in a patting manner; the mortar conveying pipe is mounted on the mortar throwing mechanism so as to move along with the mortar throwing mechanism, and the mortar conveying pipe is used for conveying mortar to the mortar throwing mechanism; and the plastering mechanism is connected with the second output part of the first driving mechanism, so that the plastering mechanism flatly paves mortar attached to the wall surface on the wall surface along the mortar throwing path of the mortar throwing mechanism. The plastering device can replace workers to conduct plastering operation, and the working time sequence of mortar throwing and plastering is shortened.

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 invention discloses a method for preparing a road-use hydrophobic polyurethane urea binder based on double hydrophobic modification, and relates to the technical field of polyurethane pavement materials. The invention uses polyurethane, polyurea, hydroxy polydimethylsiloxane, nano silicon dioxide, chain extender and organic solvent as raw materials to prepare a polyurethane urea binder having excellent hydrophobicity, mechanical properties, interface bonding properties, hydrolysis resistance and wear resistance. The material is used as a binder for polyurethane mixture for pavement, which can improve the hydrophobicity of polyurethane pavement, overcome the problem of poor hydrolysis resistance of existing polyurethane binders, and ensure the excellent use performance of polyurethane pavement.

The application discloses an impact-resistant and wear-resistant epoxy resin modified mortar and a preparation method thereof, and relates to the technical field of mortar.The application comprises the following raw materials in mass parts: deionized water 170-190 parts, modified boron nitride synergist 13.13-14.38 parts, water reducing agent 0.8-1.2 parts, tributyl phosphate 0.6-0.8 parts, composite modified porous polysiloxane microspheres 26.25-28.75 parts, water-based epoxy resin 21-23 parts, Portland cement 420-460 parts, sulphoaluminate cement 105-115 parts, concrete expansive agent 15.75-17.25 parts, river sand 1050-1150 parts, water-based epoxy curing agent 27.3-29.9 parts.The introduction of the modified boron nitride synergist and other raw materials in the application simultaneously improves the compressive strength, the bending strength, the impact strength, the wear resistance, the anti-cavitation ability, the aging resistance and the alkali corrosion resistance.

The utility model discloses a separation type facial mask bag which comprises a bag body, a liquid cavity and a facial mask cavity are arranged in the bag body, a first easy-to-uncover strip and a second easy-to-uncover strip are arranged on the two sides of the interior of the bag body between the liquid cavity and the facial mask cavity respectively, and the first easy-to-uncover strip and the second easy-to-uncover strip are attached in a separable mode through hot melt adhesive. The first easy-to-tear strip and the second easy-to-tear strip are provided with transverse embossments, and vertical embossments are arranged at the two ends of the transverse embossments and form locking edges. A clamping block is arranged on the top face of the first easy-to-tear strip, and a connecting groove matched with the clamping block is formed in the top face of the second easy-to-tear strip.

The invention provides a manufacturing method of a multi-layer double-opening high-strength carton, and relates to the technical field of carton production. The manufacturing method of the multi-layer double-opening high-strength carton comprises the following steps: carrying out paperboard bonding by using a special adhesive with a low solidification temperature characteristic in a low-temperature environment; based on optimal arrangement of paper fiber directional consistency, the cracking resistance of all layers of the carton on a high-speed production line is ensured; a moisture-proof treatment process is adopted in a humid environment, the surface of the carton is subjected to coating treatment, and the moisture resistance and the mechanical strength of the carton are enhanced; and the edges and key stress parts of the carton are reinforced, so that the stability and the bearing capacity of the whole structure of the carton are improved. By optimizing the directions of the paper fibers, the paper fibers are kept consistent on all layers of the carton, the stability of the carton on a high-speed production line can be ensured, the cracking phenomenon caused by inconsistent directions of the paper fibers is reduced, and therefore the overall strength and durability of the carton are improved.