528results about How to "Overall good" patented technology

The invention relates to a 3D printing cement-based material and a preparation method thereof. The 3D printing cement-based material is composed of a powder form gelling material and an aggregate, the powder form gelling material is composed of cement, an active admixture, a water reducer, a hardening accelerator, an adjustable solidification agent, an expanding agent, a binder, an air-entrainer, a plasticity-maintaining agent, a water repellent, starch ether, a powder filling material and fiber, and the aggregate is composed of a fine aggregate and a crude aggregate. Compared with prior art, the 3D printing cement-based material has the advantages of good work performance, constructability performance, mechanical property and endurance performance.

The invention discloses a latticed type precast prestressed underground diaphragm wall, comprising a precast wall body, wherein two rows of prestressing steel strands vertically pass through the inside of the precast wall body; the prestressing steel strands apply prestress after the concrete strength of a concrete wall body reaches over 80 percent, and the upper and lower end faces of the precast wall body are locked by prestressing anchorage device; two rows of the prestressing steel strands are connected at intervals through transverse structure reinforcing steel bars along the height direction; joint parts on two sides of the precast wall body are of a concave semicircular shape; a protective layer is concreted on the periphery of each prestressing steel strand; and a hollow through hole throughout the height direction of the wall body is arranged inside the precast wall body. The diaphragm wall is concreted and precast on the ground, which can well guarantee the shape, size and density of the wall body, ensures that the quality of the wall body cannot be affected by strata or slurry wall, and can thoroughly eradicate joint mud inclusion, wall body sand inclusion, reinforcing steel bar exposure, loosening, wall surface protuberance, water leakage, sand shifting and other quality qualitative common faults.

The invention relates to an MgO-Cr2O3 ramming material for a VOD (Vacuum Oxygen Decarburization) steel ladle safety liner. The MgO-Cr2O3 ramming material is characterized by comprising the following components in parts by weight: 50-100 parts of waste magnesium-chromium bricks, 0-50 parts of magnesite, 3-15 parts of clay or bentonite, and 0.5-10 parts of agglutinant, wherein the waste magnesium-chromium bricks and the magnesite are respectively processed into products with the granularity of 4-1mm and 1-0.74mm and being not more than 0.07mm, and the granularity composition comprises 45-55 parts of processed products of 4-1mm, 25-35 parts of the processed products of 1-0.074mm, and 15-25 parts of the processed products being not more than 0.074mm in parts by weight; and all the materials are mixed uniformly to obtain a finished product which has the chemical components that MgO being not smaller than 60% and CrO3 being not smaller than 4.0%. The ramming material disclosed by the invention has the advantages of lower preparation cost, simplicity for construction, good integrity, favorable performance, stable and reliable quality, no restrains from territorial temperature, territorial humidity and other conditions, and good application effect.

The invention belongs to the preparation technique of sensors and provides a three-dimensional soft tactile sensor array which comprises a microstructure which is arrayed in an ordered arrangement and a wire which is located between the end points of the microstructures. Non-conducting rubber is put between the microstructures. Each microstructure is composed of three pillar-shaped bodies, wherein the first pillar-shaped body is placed vertically; the upper end face of the second pillar-shaped body is intersected and connected fixedly with the side face of the first pillar-shaped body. The center of the upper end face of each microstructure and the center of the lower end face of each microstructure are respectively provided with an electric contact. A wire is connected between the electric contacts of the upper end face of the first pillar-shaped body of each microstructure, a wire is connected between the electric contacts of the upper end face of the third pillar-shaped body of each microstructure, a wire is connected between the electric contacts of the lower end face of the first pillar-shaped body of each microstructure, and a wire is connected between the electric contacts of the lower end face of the second pillar-shaped body of each microstructure. An upper layer of the wire and a lower layer of the wire are vertical to each. The sensor array has the advantages of lowering dimensionality and difficulty of decoupling, being capable of detecting magnitude of force, being low in response time and tight in structure.

The invention discloses a four-die stepless speed change series-parallel hybrid power driving system, belonging to the technical field of automobile hybrid driving. The system comprises an engine, a clutch, two motors, corresponding transmission chains of the two motors, a power transfer switching device, a planetary gear differential device, a deceleration differential device, an energy storage device and a motor control device. The system provided by the invention has the characteristics of better technical inheritance with existing vehicles, overall dynamic property, fuel economy and low emission, and has functions of four-die driving, stepless speed change and series-parallel system; the problems of insufficient driving power, lack in ramp starting ability, large system volume and high cost of the existing similar technologies and the problems that the stepless speed regulation of the engine cannot be realized and the batch industrialization is difficult as the electromechanical components are difficult to manufacture are solved, and organic combination of high performance, low development cost, low system cost and easy implementation of scale industrialization is realized.

The invention discloses a novel seismic hardening constructional column of a masonry structure. The novel seismic hardening construction column comprises a primary-structure wall body, a steel plate, an angle steel, a split bolt and a steel tie, and is designed as follows: the steel plate and the split bolt are hooped with the wall body to form a combination constructional column at the exterior of the primary-structure wall body, and the steel tie is embedded between the combination constructional column and the peripheral wall body. The seismic hardening constructional column is provided with different shapes aiming at different parts, and can be in a linear shape, a L shape, a T shape and a crisscross shape; the steel plate or the angle iron is bonded on the surface of the construction column; and the split bolt pulls and ties the steel plate or the angle steel to form a firm integrated body with the column body. Compared with the traditional seismic hardening constructional column, the novel seismic hardening constructional column has the advantages of safety, practicability, simple structure, convenient construction, good integrity, strong shock resistance, short construction period, no damage on the wall body, no influence on appearance and the like.

Provided are a pre-fabricated building removable partition, a wall splicing structure, and a construction method. The pre-fabricated building removable partition comprises a wall main body, and a partition removable mechanism and a partition lifting mechanism added on the lower side of the wall main body. The wall main body comprises a cavity formed by a front panel, a rear panel, an upper blanking plate, a lower supporting plate, a right end plate, and a left end plate. A hollow threading lightgage steel joist and cavity filling foam are arranged in the cavity. The partition removable mechanism and the partition lifting mechanism are fixedly connected with the lower supporting plate. The lower sides of the front panel and the rear panel are respectively connected with a skirting board shielding the removable mechanism and the lifting mechanism. Gaps are filled with the cavity filling foam. The top end face of the wall main body is provided with a sealing band which is abutted against a room roof. The pre-fabricated removable partition can be produced and assembled in a factory, and is lifted and installed on an installation site, and the pre-fabricated removable partition has good dimension stability and good sound insulation, and satisfies variable requirement of people on living space. The pre-fabricated removable partition can greatly improve utilization rate of a building space, and promotes development of buildings.

The invention provides a three-dimensional laser scanner fixing mechanism, and a subway tunnel acquisition system and method. The subway tunnel acquisition system comprises a three-dimensional laser scanner fixing mechanism, a railway car module, a range sensor, an RFID reader-writer and a host computer. A three-dimensional laser scanner continuously acquires point cloud data of tunnel segments, the range sensor acquires mileage data in real time and transmits the mileage data to the host computer, the RFID reader-writer returns read and written RFID smart tag signals to the host computer in real time, and the host computer complete multi-source data fusion and storage. According to the invention, the problem that when the three-dimensional laser scanner is in a profile scanning mode, an automatic motor cannot be locked is solved, and damage to the scanner caused by maloperation is avoided. By means of the integrated design of two modules including the constant-speed railway car and the three-dimensional laser scanner, the quality of acquired data is improved, automatic acquisition of tunnel deformation data and disease information is achieved, the labor cost is reduced, and the detection efficiency is improved.

The invention relates to a wind power generation tower prestress anchor bolt cage which comprises an anchor bolt, an upper flange and a lower flange. The anchor bolt penetrates through an anchoring nut, the lower flange, a positioning nut, an anchor bolt casing pipe, an adjusting nut, the upper flange, a T-shaped flange at the bottom of a wind power generation tower and a locking nut in sequence. The upper flange is an annular steel plate, an anchor bolt hole is an inverted-cone hole, and the adjusting nut can support the upper flange and adjust the levelness of the upper flange; the lower flange is an annular steel plate, a lower flange support bolt and a support nut bear the weight of the lower flange and can adjust the levelness of the lower flange, the lower flange is fixed through a pressing nut, and the lower flange support bolt is supported on a base plate. According to the wind power generation tower prestress anchor bolt cage, the anchor bolt and foundation concrete are separated through the anchor bolt casting pipe, the anchor bolt applies pretension force, and the concrete is subjected to the stress; the position and levelness of the upper flange are adjusted through the adjusting nut; the inverted-cone hole of the upper flange enables the center area, the inner edge and the outer edge of the T-shaped flange at the bottom to be pressed against the upper flange more tightly, and the inverted-cone hole is filled with sealing materials. The wind power generation tower prestress anchor bolt cage enables the integrality of the connection of a tower frame and the foundation to be good, is even in rigidity, and improves durability and anti-fatigue performance of connection.

A prefabricated steel fiber sludge-made ceramisite concrete wall based on T-shaped groove connection comprises prefabricated wall plates, cast-in-place connection columns and cast-in-place vertical edge components, wherein the two lateral sides of each prefabricated wall plate are each of a T-shaped groove structure, horizontal and vertical reinforcing steel bars are arranged in the prefabricated wall plates, each cast-in-place column is embedded in the T-shaped groove structures of the corresponding adjacent prefabricated wall plates to connect the prefabricated wall plates, each cast-in-place vertical edge component is provided with a longitudinal protrusion structure matched with the corresponding T-shaped groove structure, the longitudinal protrusion structures are embedded in the T-shaped groove structures on the outer sides of the edge prefabricated wall plates, longitudinal ribs are arranged in the cast-in-place vertical edge components, and reliable anchoring is achieved when the longitudinal ribs and the horizontal reinforcing steel bars in the edge prefabricated wall plates are embedded and spot welding is conducted on the joints one by one. The invention further provides a construction method of the prefabricated steel fiber sludge-made ceramisite concrete wall, and by means of the innovation of materials, the connection mode and the rib matching mode, the wall structure can have the advantages of being capable of lowing energy consumption and reducing vibration, ecological, environmentally friendly, capable of being rapidly constructed, economical and practical.

The invention discloses a manufacturing device and a method of a resin transparent concrete block, and belongs to the technical field of novel concrete materials. The device used by the method is characterized by comprising a light guide body prototype part, a mold separation piece, cushion plates and a surrounding mold, wherein the light guide body prototype part comprises connecting parts acting a connecting effect, and multiple light guide branches; all the light guide branches can be connected as a whole due to the existence of the connecting parts thereby facilitating demoulding of a silicone mould and facilitating concreting; the mold separation piece is a middle-hollowed rectangular sheet, so that the mold can be naturally divided into two parts of a top mold and a bottom mold, and contact surfaces of the top mold and the bottom mold are smooth and compact in connection; and the cushion plates are two wood plates with the same size to raise the mold separation piece to a needed height. The device can conveniently and quickly apply a mold turning method to manufacture the silicone mold so as to produce resin light guide bodies in batches, so that the production efficiency of resin transparent concrete is improved.

The present invention belongs to the field of afforesting technology, and is especially plant culture medium for hill afforesting vegetation. The plant culture medium is prepared with tree bark, stalk, soil, plant ash, carbon powder, paper pulp, organic fertilizer, grass seed, flower seed, tree seed, water retaining agent, curing agent, adhesive, etc. and through mixing. It is sprayed for being adhered to hill rock surface. It is ventilating, integral, and suitable for plant growth, and can form afforesting vegetation well on hill.

The invention relates to an integral casting construction process of a dry quenching furnace, comprising the following steps: casting dry quenching furnace cooling sections, outer part of chute bracket front side, two side walls and the bottom of a boiler inlet and a bifurcation chute of a primary dust remover, integrally casting by adopting automatically-flowing casting materials, baking the dryquenching furnace for 65-84 hours at the temperature of no higher than 600 DEG C after finishing casting. Under the condition of not damaging the prior structural conditions of the dry quenching furnace, the invention thoroughly solves the problem that the work amount is large in the prior bricking inlayed repairing scheme, ensures favorable integrity of laid bricks, saves time and material, and has low cost and long service life.

Disclosed is a side slope ecological protection method combining vegetation nursery grooves with hung-net spray-seeding. The method comprises the following steps that (1) the slope surface of a side slope is cleaned to be smooth; (2) nets are laid; (3) the vegetation nursery grooves are designed; (4) ground anchors are installed; (5) the vegetation nursery grooves are constructed, and the construction of the vegetation nursery grooves is completed according to the vegetation nursery groove design scheme determined in the step (3); (6) the step (5) is repeated to construct the multiple vegetation nursery grooves in the slope surface of the side slope; (7) base material mixtures are sprayed to the whole slope surface; and (8) the vegetation nursery grooves are filled, namely the side slope ecological protection is achieved through the combination of the vegetation nursery grooves and the hung-net spray-seeding. According to the side slope ecological protection method combining the vegetation nursery grooves with the hung-net spray-seeding, the vegetation nursery grooves and the hung-net spray-seeding are combined organically, and the attachment of the nets and the slope surface is improved. In addition, the stability of the side slope is improved, and the project investment is reduced, so that the anticipative ecological protection function on the constructed project can be achieved.