42results about How to "Filled tightly" patented technology

The utility model relates to the technical field related to powder gears, in particular to powder metallurgy gear forming equipment which is long in service life and resistant to abrasion, supporting feet are fixedly installed at the bottom of a working table and fixedly arranged at the four corners of the bottom of the working table respectively, and a powerful pressing machine is fixedly arranged at the top of the working table. The powerful pressing machine is arranged in the middle, a pushing machine is slidably arranged on one side of the powerful pressing machine and slidably installed on one side of the right angle of the workbench, and a lubricator is fixedly installed on the other side of the powerful pressing machine and fixedly installed on one side of the slope of the workbench. A shell, a sliding rail, a side seam, a manufacturing area, a mold, a high-temperature heating plate, a protective sleeve and a motor core are arranged in the working table, and the vibration device is additionally arranged on the device, so that metal powder can be more compactly filled in a vibration mode when entering the mold; and noise can be reduced to a certain extent when a finished product is pressed in the later period.

The invention relates to an energy-saving and environment-friendly oxygen enrichment unit and a using method thereof. The energy-saving and environment-friendly oxygen enrichment unit comprises machine barrels, the machine barrels are filled with molecular sieve particles, an air inlet pipe and a nitrogen discharging pipe are connected between the top ends of the two machine barrels, an oxygen discharging pipe is connected between the bottom ends of the two machine barrels, and a first three-way control valve is installed on the air inlet pipe; the position of the communicating groove is adjusted through rotation of the barrel sleeve, and then the communicating groove is matched with the feeding groove and the discharging groove, so that automatic opening and closing of the two ends of the machine barrel are achieved, and when the two ends of the machine barrel are in an opening state, a second motor works to drive a rotating shaft and a spiral blade to rotate, and molecular sieve particles in the machine barrel are driven to move upwards; the molecular sieve particles in the first conical shell are supplemented into the machine barrel, the molecular sieve particles located above the machine barrel enter the second conical shell, the molecular sieve particles in the machine barrel are gradually replaced from top to bottom, and automatic replacement of the molecular sieve particles in the machine barrel is achieved.

The invention relates to the technical field of ecological restoration and water resource management, in particular to a novel brick material based on corn straw as well as a preparation method and a use method of the novel brick material, and provides the novel brick material based on the corn straw in order to solve the problems of high water loss speed and slow ecological restoration of peat land. Comprising the following raw material components: corn straw powder, corn straw charcoal, calcium bentonite and corn stigma fiber, the corn straw powder, the charcoal, the calcium bentonite and the corn stigma fiber are mixed according to a specific proportion, and the mixture is subjected to compression molding to prepare the brick with good moisture retention performance and ecological compatibility. The method is specially used for water retention and vegetation recovery of the peat land.

The invention provides an optical fiber image transmission element for ultraviolet detection and a preparation method and application thereof, and the preparation method comprises the steps: carrying out the pickling of the cross section of one end of the optical fiber image transmission element, enabling the cross section to form a microporous structure with the depth of 10-50 [mu] m, and obtaining a pickled optical fiber image transmission element; a fiber core of the optical fiber image transmission element is made of an easily acid-etching material, and a cladding is made of an acid-etching-resistant material; the preparation method comprises the following steps: dissolving CsX and PbX2 in an organic solvent to obtain a precursor solution; wherein X is at least one of Cl, Br and I; the precursor solution is heated, gas is introduced, the gaseous precursor solution is brought to the microporous structure, the precursor solution reacts at the microporous structure in a gaseous form to generate CsPbX3 quantum dots, the microporous structure is filled, and a filled optical fiber image transmitting element is obtained; and the protection window is arranged on the filling surface of the filling optical fiber image transmission element, so that the optical fiber image transmission element for ultraviolet detection is obtained, the optical fiber image transmission element has the advantages of high brightness and high resolution, and the efficiency and the resolution of an ultraviolet detector can be effectively improved.

This invention discloses a combined integrated molding inductor processing equipment, relating to the technical field of inductor processing. It includes a processing table equipped with a winding mechanism, a moving mechanism, and a detection component. A die-casting mechanism extends from the side of the processing table. The die-casting mechanism includes an upper mold, a lower mold, an injection component, a shielding component, and a linkage component. The upper mold and the lower mold are connected by a guide post. The injection component is located at the side of both the upper and lower molds and is movably connected to the upper mold via the linkage component. An umbrella-shaped canopy formed by a sealing assembly completely isolates the injection port from the external environment, ensuring stable flow of magnetic powder in a constant micro-environment. This avoids interference from external airflow on the powder spray trajectory, allowing the powder to fill the mold cavity formed by the upper and lower molds uniformly and densely.

The utility model discloses an automatic bonding and pressing device for bamboo bowls. The automatic bonding and pressing device comprises a machine base, a drying box, a hot air pipeline, a lifting air cylinder, an upper die base and a lower die base. A containing space is arranged in the drying box, and the lower die base is arranged in the containing space and used for positioning and placing bamboo bowls to be bonded and pressed. The lifting air cylinder is connected with the upper die base, and the hot air pipeline is communicated with the drying box and used for introducing hot air into the drying box. The lifting air cylinder can drive the upper die base to be pressed on the bamboo bowls on the lower die base so as to apply uniform pressure to the bonded bamboo bowls, so that glue can be more tightly filled in joints and gaps between bamboo chips, and the bonding strength is improved; the hot air pipeline can introduce hot air into the drying box, so that the chemical reaction of glue is accelerated, the curing time is shortened, and the production efficiency of the bamboo bowls is improved; an annular groove is formed between the top column part and the disc part of the lower die base and can be in positioning abutting connection with the circumferential wall of the bamboo bowl so as to prevent the bamboo bowl from shifting in the pressing process.

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 invention relates to a humidifier and a manufacturing process of the humidifier. The humidifier (100) comprises a wound portion (10) surrounding a central axis (80) and comprising enclosures (12), a first of the enclosures comprising a first pair of semipermeable membranes (14) separated by a first spacer layer (16) to form one of the moisture channels (20), and a second of the enclosures comprising a second pair of semipermeable membranes (14) separated by a second spacer layer (18) to form one of the dry gas channels (22). The dry gas channel (22) is configured to receive a dry gas (52) through at least a portion of the first face region (24) of the wrap portion and in an axial direction along the dry gas channel. The moisture channel (20) is configured to receive a moisture gas (50) through at least a portion of a second face region (26) of the wound portion and in an axial direction along the moisture channel, the second face region (26) being opposite the first face region (24).

The invention provides an integrated steel bar locking full-grouting sleeve with clamping grooves. The integrated steel bar locking full-grouting sleeve comprises a grouting sleeve body, an upper sealing plug, a lower sealing plug, an upper clamping groove positioner and a lower clamping groove positioner. The upper end of the grouting sleeve body is provided with an upper opening and a grout outlet, and the lower end is provided with a lower opening and a grouting opening; the grout outlet and the grouting opening are communicated with the interior of the grouting sleeve body; the upper opening and the lower opening are axially arranged; the grout outlet and the grouting opening are horizontally formed relative to the grouting sleeve body, and the upper sealing plug and the lower sealing plug are arranged in the upper opening and the lower opening correspondingly; the upper clamping groove positioner and the lower clamping groove positioner are connected with one ends of the adjacent steel bar pieces respectively. The method has the advantages of being simple in structure, convenient to construct, small in material consumption, good in effect and the like, has a good use prospect and can be widely applied to fabricated buildings.

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 utility model relates to the field of packaging, in particular to a dried orange peel storage packaging bag which comprises a packaging bag body, and the packaging bag body comprises a packaging bag front piece and a packaging bag rear piece. The two sides and the bottom of the packaging bag front piece are fixedly connected with the two sides and the bottom of the packaging bag rear piece through heat sealing to form sealing edges, and the top of the packaging bag body is provided with a leakage-proof sealing strip. The packaging bag front piece and the packaging bag rear piece are both bamboo-based packaging materials made of bamboo fibers, each bamboo-based packaging material comprises a body paper layer and a barrier coating, the body paper layer is a base material, and the two sides of the body paper layer are coated with the barrier coatings through a spraying process. The packaging bag body is made of the bamboo-based packaging material, the growth speed of bamboos is high, the bamboos are renewable resources, the influence of planting and felling on the environment is small, the concepts of green packaging and sustainable development are met, and the requirement of the packaging material for environment friendliness and sustainability is met; bamboo is widely distributed globally, resources are sufficient and easy to obtain, and compared with limited forest resources, bamboo supply is more stable.

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 utility model discloses a hollow sheet part wet-type cold isostatic pressing forming die, which relates to the technical field of powder compression forming dies, and comprises a sheath, support legs are fixedly mounted at the corners of the lower end of the sheath, a lower base plate is mounted at the upper end of the sheath, a positioning groove is formed in the middle of the lower base plate, and the lower base plate is connected with the positioning groove. A positioning groove is formed in the lower base plate, a special-shaped mold core is installed at the upper end of the positioning groove, the outer side wall of the special-shaped mold core is slidably connected with an upper cover plate, the upper cover plate is located above the lower base plate, a powder containing cavity is formed between the upper cover plate and the lower base plate, and a rubber plug is installed at the upper end of the upper cover plate; by means of the split design of the lower base plate and the special-shaped mold core, after isostatic pressing machining is completed, the special-shaped mold core and a lower base plate body are separated, a rotating handle is rotated, so that a threaded rod moves upwards, then the lower base plate moves upwards, finally, a shaped blank leaves the interior of the wrapping sleeve, and rapid demolding and discharging of the shaped blank are achieved.

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 an adjustable automatic casting special device and a using method, and belongs to the technical field of equipment casting, the adjustable automatic casting special device comprises a bottom plate fixed on the ground and used for bearing the device; the centrifugal barrel is a rotating barrel which is transversely placed, a casting mold assembly is arranged on the centrifugal barrel, the casting mold assembly is communicated with the interior of the centrifugal barrel, and casting liquid is formed in the casting mold assembly; through the collaborative design of the driving part and the rotating assembly fixedly installed on the bottom plate and used for driving the centrifugal barrel, when the driving part drives the centrifugal barrel to rotate at a high speed, the multiple casting mold assemblies can conduct casting operation at the same time, and a forming cavity of a mold is rapidly and evenly filled with casting liquid under the action of centrifugal force; the forming cycle of each product is greatly shortened, more high-quality products can be produced in unit time, the method is particularly suitable for large-scale batch production, and the production efficiency and the yield are effectively improved.

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 belongs to the technical field of tablet production, and discloses a device for continuously producing zinc-magnesium tablets, which comprises a support table, a rectangular through groove is formed in the upper end face of the supporting table and provided with a formwork, the upper end face of the formwork is flush with the upper end face of the supporting table, and a plurality of evenly-distributed die holes are formed in the upper end of the formwork and penetrate through the upper end and the lower end of the formwork. A bottom plate is arranged at the lower end of the template, the bottom plate and the template are arranged in parallel, a plurality of cylindrical lower pressing heads in one-to-one correspondence with the die holes are fixed to the upper end of the bottom plate, the lower pressing heads are connected into the corresponding die holes in a sliding mode, the diameter of the lower pressing heads is equal to that of the die holes, and when the bottom plate is attached to the lower end face of the template, the upper ends of the lower pressing heads are flush with the upper end face of the template; the supporting table is provided with a first adjusting unit used for driving the bottom plate to ascend and descend. The problems that in the prior art, in the production process, labor intensity is large, working efficiency is low, and production continuity is poor are solved.

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.

According to the shield tunnel outwards-protruding type tunnel portal ring beam construction method and the tunnel portal ring beam structure, a tunnel portal segment is arranged to protrude out of a tunnel portal of a station main body structure, a segment steel plate and a tunnel portal steel ring are welded into a whole through an annular blocking steel plate, and an annular gap is formed between the tunnel portal segment and the tunnel portal; and then grouting filling is carried out on the annular gap through a grouting steel pipe, tunnel portal ring beam construction is carried out after filling is completed, and the tunnel portal ring beam is arranged to protrude out of the tunnel portal. According to the method and structure, the outwards-protruding type tunnel portal ring beam is adopted, compared with a traditional lining type ring beam, the construction quality is better, safer and more reliable, the influence of the length, stretching out of the portal end, of an original tunnel portal segment is avoided, the original segment in a tunnel does not need to be damaged, water gushing and sand gushing accidents caused by segment cutting and dismantling are avoided, the construction risk is reduced, and the construction efficiency is improved. The construction space is large, and meanwhile, it can be guaranteed that the annular gap behind the tunnel segment wall and poured tunnel portal ring beam concrete are densely filled through grouting.

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 present invention discloses a wide temperature range self-lubricating material and a preparation method thereof, comprising the following steps: (1) adding a precursor solution of MoS2 to the pores of a porous metal ceramic matrix by vacuum pressure impregnation to obtain a matrix A; (2) placing the matrix A and the precursor solution of MoS2 in a reactor for hydrothermal reaction to generate a matrix B, taking out the matrix B for cleaning and drying to obtain a matrix C; (3) adding a precursor solution of Ag to the pores of the matrix C by vacuum pressure impregnation to obtain a matrix D; (4) placing the matrix D and the precursor solution of Ag in a reactor for hydrothermal reaction to generate a matrix E, taking out the matrix E for cleaning and drying to obtain a wide temperature range self-lubricating material. In the present invention, an impregnation and two-step hydrothermal synthesis method are adopted to successively synthesize two nano-lubricants, MoS2 and Ag, in the pores of the matrix, which have a synergistic lubrication effect in a wide temperature range, and realize low friction and low wear of the material in a wide temperature range.

The invention discloses a method for preparing a highway subgrade material based on yellow phosphorus slag and ardealite, which comprises the following steps: 1) crushing yellow phosphorus slag to obtain granular yellow phosphorus slag; 2) screening granular yellow phosphorus slag, taking coarse grains as yellow phosphorus slag aggregate for later use, and grinding fine grains into powdery yellow phosphorus slag; 3) mixing the powdery yellow phosphorus slag with ardealite, fly ash, blast furnace slag and quick lime to obtain a cementing material; and 4) adding water into the yellow phosphorus slag aggregate and the cementing material, mixing, filling the cementing material powder into holes of the yellow phosphorus slag aggregate, and gelatinizing and curing. According to the invention, the defects of more surface edges and corners, more pores on particles, free fluorine and the like of the yellow phosphorus slag are overcome through lower processing cost, so that the yellow phosphorus slag can be applied to roadbed filler on a large scale, and the resource reutilization efficiency of the yellow phosphorus slag is improved.

The invention discloses a thermal insulation concrete material and a preparation method thereof, and the thermal insulation concrete material comprises the following components by weight: 30-40 parts of Portland cement, 5-10 parts of quartz sand, 5-10 parts of walnut sand, 5-10 parts of ceramsite sand, 5-10 parts of redispersible latex powder, 10-15 parts of fly ash, 20-30 parts of water, 1-2 parts of polyvinyl alcohol, 1-2 parts of polyacrylamide, 1-3 parts of hydroxypropyl methyl cellulose ether, and 1-3 parts of modified polyoxyethylene. 1-2 parts of anti-crack fibers, 2-4 parts of a water reducing agent and 2-4 parts of expanded mineral powder; the expanded mineral powder is prepared from the following raw materials: water-absorbent resin, montmorillonite powder, polyacrylate and polyacrylamide. The concrete material disclosed by the invention has better heat insulation performance, the toughness and the strength are effectively improved, and the concrete material is prevented from cracking and generating cracks.