19results about How to "Filled tightly" patented technology

This invention relates to the field of polymer materials technology, specifically to a method for preparing and applying a rigid polyimide foam reinforced with aluminum honeycomb. The method for preparing the rigid polyimide foam reinforced with aluminum honeycomb provided by this invention includes steps such as surface pretreatment of the aluminum honeycomb core material and fixing the pretreated aluminum honeycomb core material into a molding die. The rigid polyimide foam material reinforced with aluminum honeycomb obtained by this invention not only possesses high specific strength and high specific stiffness, but also inherits the excellent properties of polyimide foam such as high temperature resistance, flame retardancy, low smoke, and thermal insulation. The introduction of the aluminum honeycomb skeleton also improves the material's impact resistance and dimensional stability, making it an ideal multifunctional integrated lightweight structural material with promising application prospects.

The invention belongs to the technical field of underground diaphragm walls and guide walls, and particularly relates to a formwork trolley for open excavation of underground diaphragm walls and guide walls of subway stations, which comprises a movable trolley, the movable trolley is arranged on the ground, and a supporting mechanism and two inverted L-shaped supporting guard plates are arranged on the movable trolley. The two inverted-L-shaped supporting protection plates are symmetrically located on the two sides of the supporting mechanism, the supporting mechanism is used for supporting the inverted-L-shaped supporting protection plates on the side wall of a groove section, a vibration mechanism is arranged on the inverted-L-shaped supporting protection plates, and the vibration mechanism comprises a reciprocating assembly arranged on the inverted-L-shaped supporting protection plates. A vibrating piece is arranged at the moving end of the reciprocating assembly and used for acting on the inverted-L-shaped supporting protection plate so as to assist in concrete filling. The construction method has the advantage that the formwork for underground diaphragm wall guide wall pouring can be conveniently installed and adjusted, and then the construction efficiency is powerfully improved.

The utility model relates to the technical field of steel sheet pile lock catches, in particular to a steel sheet pile lock catch with a self-sealing rubber insertion strip, which comprises a female buckle and a male buckle, the female buckle comprises a female buckle head, a sleeve and a telescopic rod, the top surface of the female buckle head is provided with a wedge-shaped groove, the sleeve is positioned on the left side of the female buckle head, and the telescopic rod is fixed on the left side surface of the female buckle head and is in sliding insertion connection with the sleeve. The male buckle comprises a male buckle body and a sealing insertion strip, the male buckle body is connected with a wedge-shaped groove in the top face of the female buckle head in a sliding and inserted mode, the sealing insertion strip is fixed to the outer wall of the male buckle body and used for sealing, the adjusting mechanism is arranged on the top face of the sleeve and used for adjusting the overall length of the female buckle, and the adjusting mechanism comprises a limiting plate and a mounting plate which are fixed to the top face of the sleeve. By arranging the sealing grooves and the sealing insertion strips, the problem of water seepage of gaps at the lock catch connecting positions of the steel sheet piles is solved, and the water stopping performance is enhanced; by arranging the length-adjustable female buckle and the adjusting mechanism, the problem that a traditional lock catch cannot adapt to different construction scenes is solved, and it is ensured that the steel sheet piles are tightly connected in various projects.

The invention discloses an underwater crack repairing device and process based on a magnetic adsorption and self-expansion technology. The device comprises a magnetic adsorption moving platform, a repairing material storage and transportation and triggering module and a control and energy module. The magnetic adsorption mobile platform is adaptively adsorbed on the surface of an underwater structure through a disc type electromagnet with an independent pitching adjusting function; the repairing material storage and transportation and triggering module is used for accurately laying and controllably activating a self-expansion material unit with a built-in electric heating wire through pushing, grabbing, placing and triggering voltage stabilizing mechanisms which work cooperatively; the control module achieves automatic operation from crack three-dimensional modeling and intelligent path planning to full-process closed-loop control based on an ROS architecture. The technology comprises the steps of self-adaptive adsorption, high-precision scanning modeling, intelligent laying planning, precise material laying, electric heating power cooperative triggering curing and repairing effect rechecking. According to the invention, the full-process, high-precision and high-reliability automatic operation of underwater crack repair is realized, and the labor dependence and the operation risk are obviously reduced.

The invention provides high-temperature-resistant anti-rust oil as well as a preparation method and application thereof. The high-temperature-resistant anti-rust oil comprises the following components in parts by weight: 65-80 parts of base oil, 2-6 parts of an anti-rust agent, 1-5 parts of an antioxidant, 1-4 parts of a corrosion inhibitor, 0.5-2 parts of a film-forming agent and 0.05-0.85 part of a high-temperature stabilizer, the high-temperature stabilizer is formed by mixing montmorillonite and an N-containing nano material, and the N-containing nano material is prepared by reacting 3, 5-diamino-4-chlorobenzenesulfonic acid with p-hydroxybenzoic acid. The high-temperature-resistant anti-rust oil provided by the invention has excellent anti-rust performance and high-temperature stability.

The invention relates to the technical field of coal mining, in particular to a cage type resistance-increasing large-deformation anchor rod and a using method thereof. The anchor rod comprises an anchor rod body, a guide rod, a cage pipe and a limiting piece, the anchor rod body comprises an anchoring section located at the front end of the anchor rod body and a threaded section located at the tail end of the anchor rod body and connected with the anchoring section, and the threaded section is provided with threads. The radial size of the cage pipe is increased by pushing the first push key, so that expansion of the cage pipe is realized, the anchoring agent is anchored in a pressed state, hole wall cracks and cavities are tightly filled, the interface bonding strength of the anchor rod body and the anchoring agent and the interface bonding strength of the anchoring agent and the hole wall are greatly enhanced, three-body two-interface damage is reduced from the source, and the service life of the anchor rod body is prolonged. The bottleneck of traditional anchor rod anchoring force improvement is broken through. When the anchoring force reaches the limit, no matter whether the anchor rod body is separated from the anchoring agent or the anchoring agent is separated from the hole wall of the anchoring drill hole, the cage pipe can further expand in the radial direction along with the movement of the anchor rod body, the extrusion force between the cage pipe and the hole wall is continuously increased, extra axial resistance is provided, and sudden failure of a supporting system is avoided.

The invention discloses a preparation method and device of an Anshan basalt stratum grouting material, and relates to the technical field of grouting. Primarily stirring the slurry; shearing and dispersing at high speed; performance detection; and a grouting step. According to the invention, the superfine fly ash microbeads, silica fume and nano-silica are compounded, and a high-speed shearing process is adopted, so that the particle size of the slurry is remarkably reduced, the flowability of the slurry is improved, and the slurry can be smoothly injected into micro cracks of anshan basalt; the main component Portland cement clinker has the characteristics of early strength and micro-expansion; the filling effect of the secondary components silica fume and nano-silica further compacts the structure of the stone body, so that the stone body has high later strength and tight cohesiveness with bedrock; under the synergistic effect of a small amount of hydroxypropyl methyl cellulose and nano silicon dioxide, segregation and bleeding of the slurry are effectively prevented, and it is ensured that the slurry is fully filled in cracks.

The invention discloses a construction method of a foldable vertical shaft water-resisting layer. The problems that in the prior art, the construction period of a shaft occupied by water-resisting layer construction is long, the high-altitude operation risk is high, and grouting is difficult are mainly solved. The method comprises the following steps: prefabricating a cylindrical rubber membrane water spacing ring on the ground; after a water-resisting layer section shaft is excavated by 1-2 m, the water-resisting layer section shaft is lowered and radially unfolded to form a circular ring, and the circular ring is folded and fixed to the lower portion of the upper section shaft wall; continuously excavating to a complete section height and then loosening and fixing, so that the water spacing ring is vertically unfolded to be attached to the well side; a blade foot formwork and a grouting pipe are installed, reinforcing steel bar binding and sand filling treatment are conducted on a gap between the blade foot formwork and the well side, and the bottom of the water spacing ring is rolled up and embedded; and after the section of well wall concrete is poured, grouting is conducted on the gap between the water spacing ring and the stratum through the pre-buried grouting pipe. According to the method, by means of folding design and segmented construction of the water-resisting ring, the water-resisting layer mounting process and the digging and building process are conducted in parallel, and the construction period is greatly shortened; grouting is independently carried out after concrete pouring, and the filling quality is guaranteed; the construction process is safe, efficient and low in labor intensity.

The utility model provides a kind of steel structure factory building stand column foundation connecting structure, including bearing platform, bearing column, anchor bolt being embedded in the top surface peripheral side of bearing column, shear slot being set in the top surface central position of bearing column, reinforcing steel ring being ringed and set on the inner wall of shear slot, H-shaped steel stand column, hollow square steel column being connected with the bottom plate of H-shaped steel stand column;Wherein, the bottom plate of H-shaped steel stand column is provided with the pouring hole being communicated with the inside of square steel column, the sidewall of square steel column is provided with several guide holes, H-shaped steel stand column is installed and fixed in the top of bearing column by its bottom plate and anchor bolt cooperation, and leveling gap is reserved between the bottom plate of H-shaped steel stand column and the top of bearing column, square steel column is inserted into reinforcing steel ring in shear slot, and micro-expansion fine stone concrete layer is poured in leveling gap and the aperture of shear slot.The utility model structure is simple, and construction is convenient, and the problem that existing steel structure factory building stand column and bearing platform junction is easily corroded and poor in shear capacity is preferably solved.

This invention relates to the field of tunnel secondary lining technology, and discloses a concrete construction testing device and its construction testing method. The concrete construction testing device includes a testing pipe, a cross-shaped overflow groove at the upper end of the testing pipe, a capping mechanism, a pressure-bearing venting mechanism, a pressure-bearing sealing mechanism, a ring pressure sensor, and a limiting nut. This invention uses the capping mechanism and the pressure-bearing venting mechanism to completely seal the cross-shaped overflow groove on the testing pipe. When grouting is injected into the arch, the pressure-bearing venting mechanism releases the gas until the concrete slurry enters the testing pipe. As the pressure applied by the concrete to the pressure-bearing venting mechanism gradually increases, the pressure-bearing venting mechanism squeezes the pressure-bearing sealing mechanism. The pressure-bearing sealing mechanism gradually expands under pressure, increasing the friction between itself and the inner wall of the testing pipe until it stops moving downwards. The concrete can then fully and densely fill the entire arch space.

The application relates to the technical field of pile foundation construction, in particular to a bored pile post-grouting construction process, which comprises the following steps: S1, a preparation stage: determining the type, proportion and preparation method of grouting material, preparing grouting equipment and performing necessary preparation work on a construction site; S2, grouting hole treatment: firstly, the reserved grouting hole needs to be cleaned and treated to ensure the permeability and sealing property of the hole; S3, grouting equipment setting: installing the grouting equipment; S4, grouting injection: prefabricated cement slurry or other grouting material is injected into the pile or the soil layer around the pile through the grouting pipeline until the filling reaches the position required by the design; S5, grouting slurry solidification: waiting for the grouting slurry to be fully solidified to form an integrated structure which is well combined with the pile body and the surrounding soil body. The application has the effect of improving the bearing capacity of the pile foundation.

The utility model relates to the technical field of mine hoist, concretely is a mine hoist hotspot detection device, including equipment casing, machine shell, temperature sensor, signal processing module, data transmission module and monitoring terminal, the top middle place of machine shell is equipped with the mounting hole for temperature sensor installation, and the bottom of temperature sensor is provided with detection probe, the periphery inner wall of machine shell is fixedly installed with mounting plate, and the bottom middle place of mounting plate is fixedly installed with heat conduction cylinder, the utility model discloses through heat conduction silica gel filler can effectively eliminate the air gap between detection probe and heat conduction cylinder, significantly speeds up the heat transfer speed, lets temperature sensor can more quickly perceive the temperature change of mine hoist, simultaneously, through heat conduction cylinder and heat conduction fin further improve the heat conduction efficiency, make temperature detection more timely and accurate, avoid the detection delay or misjudgment caused by heat transfer lag.

The invention provides a synthesis method and application of an H-shaped slice high-silicon mordenite molecular sieve, and belongs to the technical field of molecular sieve synthesis and application. The preparation method comprises the following steps: mixing tetraethylammonium hydroxide and long-chain pyrrolidinium salt as template agents with an alkali source, an aluminum source and a seed crystal to form silicon-aluminum sol, aging the silicon-aluminum sol, carrying out a crystallization synthesis reaction, and carrying out ammonium ion exchange, drying and roasting to obtain the H-type high-silicon slice mordenite molecular sieve (MOR). According to the synthesized H-shaped sheet high-silicon mordenite molecular sieve, the Al element is enriched in an eight-membered ring of an MOR zeolite molecular sieve skeleton structure, acid sites which are subjected to side reactions in HMOR can be effectively shielded, and the H-shaped sheet high-silicon mordenite molecular sieve has good catalytic activity and product selectivity when being applied to a reaction for synthesizing methyl acetate through carbonylation.

The utility model discloses a kind of profiled thin-wall embedded anti-knock structure and reinforced concrete full prefabricated bathroom bottom basin structure, it is related to the field of fabricated building.The anti-knock structure includes profiled thin-wall body, its at least two adjacent side is equipped with the concave-convex structure containing groove and through-hole, groove is trapezoidal and / or dovetail shape, through-hole is arrayed and contains multiple hole type, groove bottom wall is also equipped with through-hole;Full prefabricated bathroom bottom basin structure includes the anti-knock structure and prefabricated floor, anti-knock annular is located at floor edge and integrally pours, and inside side element anti-knock is equipped on floor.The utility model is formed by concave-convex structure and cast-in-place concrete to form three-dimensional mechanical occlusion, strengthen connection strength and shear resistance, reduce leakage risk, improve construction efficiency, applicable to fabricated building.

The utility model relates to hot isostatic pressing equipment technical field, concretely is a kind of heating device for hot isostatic pressing equipment, it mainly includes heating furnace, the bottom end fixed mounting of heating furnace has base, the inside of heating furnace is connected with heating wire, and the top end of heating furnace is connected with top cover, vibration adjusting component includes heating pipe, and the bottom end of heating pipe is connected with protection box, the outside of protection box is connected with outer tube, and the bottom end of outer tube is equipped with vibration motor, the pressing replacement component includes connecting rod, the bottom end of connecting rod is connected with compacting plate, and the top end of connecting rod is connected with connector. The heating device for hot isostatic pressing equipment of the application is filled into heating pipe by raw material, then the vibration motor of bottom end vibrates, drives guiding rod and outer tube to shake, so that the material inside heating pipe is vibrated, and the material filling is more compact, and the compacting plate at top is compressed to adjust, improve product processing quality.

This invention discloses an intelligent and rapid loading and unloading processing system for rubber sealing rings. Its structure includes a fixed frame, a support rod, a loading and unloading assembly, a nozzle, a control box, a motor, and a moving rail. The fixed frame is fixed to the support rod, the loading and unloading assembly is supported and fixed by the support rod, the moving rail is connected to the fixed frame, the support frame is supported between the moving rail and the control box, and the control box is connected to the nozzle for control. The motor controls the support frame to move along the moving rail, precisely limiting the amount of colloid extruded into the mold cavity. Through the uniform downward movement of the push plate driven by the colloid, combined with the limiting effect of the mold shell and the push plate, a closed and fixed-size molding space is formed. This prevents the colloid from flowing turbulently due to excessive pre-reserved space, effectively suppressing the generation and residue of air bubbles, while ensuring that the colloid is smoothly filled into the mold groove at a uniform speed, ensuring dense filling of the cavity and improving the density uniformity and dimensional accuracy of the formed rubber ring.

The application relates to the field of powder metallurgy forming technology, and discloses a metallurgical powder pressing device for iron-silicon-aluminum soft magnetic material, which comprises a cabinet, a control panel is arranged on the outer wall of the cabinet, and an extrusion unit, a feeding unit, a reciprocating mechanism, a power unit, a knocking unit and a ejection unit are arranged in the cabinet; the feeding unit comprises a stock bin which is arranged above the cabinet, a powder pump for conveying powder is arranged in the stock bin, the control panel is electrically connected with the powder pump, a supporting plate is fixedly connected in the cabinet, a powder box is attached to the top end of the supporting plate, the bottom end of the powder box is in a penetrating mode, a bellows is arranged in communication between the powder box and the powder pump, and the problems that, in the daily use of the existing metallurgical powder pressing device, powder filling is mostly realized in a manual or simple vibrating feeding mode, uneven filling, powder caking and the like easily occur, and the local density difference of a forming cavity is large are solved.

The utility model discloses a sleeve pile joint structure for an underground diaphragm wall. The sleeve pile joint structure comprises a secant pile, a first jet grouting pile and a second jet grouting pile, the secant piles are arranged between every two adjacent sections of underground diaphragm walls, one side of each secant pile is connected with the first section of underground diaphragm wall in a secant mode, and the other side of each secant pile is connected with the second section of underground diaphragm wall in a secant mode. The first jet grouting piles are arranged at the joints of the secant piles and the first underground diaphragm wall section, and the second jet grouting piles are arranged at the joints of the secant piles and the second underground diaphragm wall section. Wherein the first jet grouting piles and the second jet grouting piles are located on the soil facing sides of the two adjacent sections of underground diaphragm walls, and the first jet grouting piles and the second jet grouting piles are connected in an engaged mode; the joint is simple in structural design, high in construction efficiency, stable in performance, light in construction disturbance and small in occupied area, and the axial surface environment is powerfully protected.

The utility model discloses a mould for manufacturing impeller blades, which comprises an upper forming body, a lower forming body and a guide pillar, the lower end of the upper forming body is provided with a first forming surface, the first forming surface is provided with a first forming groove and a first flow guide groove surrounding the first forming groove, and the upper forming body is provided with a first guide hole; a second forming surface is arranged at the upper end of the lower forming body, a second forming groove and a second flow guide groove surrounding the second forming groove are formed in the second forming surface, and a second guide hole is formed in the lower forming body; guide columns are arranged in the first guide holes, and one ends of the guide columns extend into the second guide holes; the second forming face is attached to the first forming face, the second forming groove and the first forming groove form a blade forming cavity, and the second flow guide groove and the first flow guide groove form a flow guide cavity. According to the utility model, the discharge rate of bubbles in the manufacturing process of the impeller blade is improved, so that the mechanical property of the manufactured impeller blade is improved and the service life is prolonged.