10results about How to "Reduce slump" patented technology

The utility model relates to a widening structure for filling engineering, which relates to the field of geotechnical engineering technology, and comprises a retaining wall structure, a filling body arranged in the retaining wall structure, a first reinforcing assembly used for connecting the filling body and an existing roadbed slope, and a second reinforcing assembly used for connecting the retaining wall structure and the filling body; the retaining wall structure comprises a side slope retaining wall abutting against a newly-built roadbed side slope, a horizontal baffle abutting against the top of the newly-built roadbed, a one-way geogrid arranged at the bottom of the newly-built roadbed, a foot wall arranged at the end, away from the horizontal baffle, of the side slope retaining wall and a drainage ditch adjacent to the foot wall, and the horizontal baffle is connected with the side slope retaining wall. The end, away from the slope retaining wall, of the horizontal baffle is erected on the horizontal plane of the existing roadbed, the first reinforcing assembly comprises a reinforcing rod, one end of the reinforcing rod is arranged in the filling body, and the other end of the reinforcing rod is arranged in the existing roadbed. The connecting structure has the effect of improving the connecting stability of the newly-built roadbed and the existing roadbed so as to improve the safety and stability of the newly-built roadbed.

This application relates to the field of full transfer film technology, specifically disclosing an electroplated metal laser full transfer film with surface texture. The electroplated metal laser full transfer film with surface texture includes a substrate, a release layer, a laser molding layer, an aluminum plating layer, and an adhesive layer. The laser molding layer coating is prepared from acrylic resin, alkyd resin, isocyanate curing agent, hexamethylolmelamine, hydroxyl acrylate, modified filler, leveling agent, defoamer, pigment, and solvent. The modified filler is prepared from nano-alumina, polyethyleneimine, and fumaric acid, with a mass ratio of nano-alumina, polyethyleneimine, and fumaric acid of 1:(0.4-0.6):(0.7-1). This invention effectively improves the surface adhesion of the laser molding layer, reduces the separation of the laser molding layer during hot stamping, and improves the quality of the full transfer film.

The invention discloses a novel shear blade structure for improving shearing quality, a shearing device and a shearing method, and relates to the technical field of shearing. Different from an existing shear blade structure which is used for shearing plates once, the shear blade structure is provided with two shear blades which are used for shearing the plates respectively. When the structure is used for shearing, a plate is firstly sheared for the first time through the first shear blade, and then is sheared for the second time through the second shear blade. And the second shear blade performs secondary shearing on the plate, so that the collapse angle can be reduced, and the shearing quality is further improved. And in addition, the plate is subjected to secondary shearing, so that higher shearing quality can be obtained under a larger gap. And due to two-pass shearing, the shearing gap of the first pass can be larger, the required shearing force is smaller, and the shearing part of the second pass is smaller, so that the shearing force is also lower. According to the plate shearing machine, secondary shearing is conducted on plates, the shearing force is reduced, and meanwhile the shearing quality is improved.

The invention discloses a coal mine foam fracturing and fire blast synergistic advanced presplitting roof caving method. The method comprises the following steps that S1, drilling is constructed; constructing a drill hole in a proper position of the top rock stratum of the coal seam; s2, preparing a foam fracturing fluid; the preparation and foaming of the foam fracturing fluid are realized through the foam preparation device, and combustible gas is injected during foaming; s3, fracturing is carried out; a fracturing system is arranged at the drill hole, foamed foam fracturing fluid is injected into the drill hole through the fracturing system, and a crack is formed; s4, blasting and caving; and when the hole fracture of the roof rock stratum meets the fire blast requirement, injection of the foam fracturing fluid is stopped, and then ignition and detonation are conducted. Foam fracturing is combined with burning and explosion, the foam fracturing enables a roof rock stratum to generate a large number of hole cracks, the strength of the roof rock stratum is weakened, a burning and explosion space is provided for the burning and explosion technology, the safety of caving of a mining working face is guaranteed, advanced caving can be achieved, and the safety problem caused by the fact that a hard roof is difficult to fall in a goaf is solved.

This utility model relates to the field of new energy battery technology, and discloses a battery cell and a battery pack. The battery cell has a first direction and a second direction that are perpendicular to each other, and includes: a top cover plate with a positioning groove; an insulating component including a main body and a first protrusion, the first protrusion being located on the side of the main body away from the top cover plate, the first protrusion including a platform body with a clearance groove, the platform body being connected to the main body, the clearance groove penetrating a portion of the platform body along the second direction; and a first positioning post, one end of which passes through the positioning groove and is connected to the top cover plate, and the other end of which is connected to the main body. Along the first direction, the orthographic projection of the first positioning post on the first protrusion is at least partially located in the clearance groove, and the orthographic projection of the first positioning post on the main body is offset from the orthographic projection of the platform body on the main body. The first protrusion is a common location for the insulation component to collapse. Increasing the force exerted by the first positioning post on the insulation component at the first protrusion can reduce the collapse amplitude of the first protrusion and improve the safety and stability of the battery cell.

The utility model discloses a large drawing machine winding frame capable of arranging wires for cable production, and belongs to the technical field of wire and cable production equipment. Comprising a bottom plate, a circle of outer vertical rods and a circle of inner vertical rods are evenly distributed and fixed on the circumference of the bottom plate, the circle where the outer vertical rods are located and the circle where the inner vertical rods are located are concentric circles, outer rings are arranged on the tops of the outer vertical rods, a top plate is arranged on the tops of the inner vertical rods, and a plurality of wire arranging wheels are evenly distributed on the upper portions of the inner vertical rods. According to the utility model, the length of the wire arranging rod I and the length of the wire arranging rod II of the wire arranging wheel are different, coils are guided to fall into different areas in the wire containing cylinder, the normal distribution phenomenon caused by free falling of conductors is eliminated, the collapse and winding of the coils are reduced, and the smoothness of paying off is improved; the coils are evenly and tightly arranged in the wire containing barrel, and the loading capacity is increased.

The utility model provides a roll welding head and a roll welding device. The roll welding head comprises a welding handle, a first rolling wheel, a connecting part and a second rolling wheel which are sequentially connected in the axial direction of the roll welding head, and welding working faces are formed on the outer circumferences of the first rolling wheel and the second rolling wheel. According to the roll welding device, the roll welding head is provided with the two welding working faces, in the conveying process of the to-be-welded workpiece, the welding working face on the first rolling wheel is welded to form an aligned welding seam, the welding working face on the second rolling wheel is welded to form an overflowing welding seam, and the action processes of feeding, unwinding, roll welding, dust removal and winding do not need to be repeated twice; and the welding processing efficiency can be improved. And moreover, the states that the pole piece and the foil are welded to form an overflowing welding seam and the welding seam is not aligned do not exist, so that the phenomena of collapse and wrinkling of the pole lug can be reduced, and the process yield is improved.

The utility model discloses an earth rock cofferdam structure for a diversion building, and relates to the technical field of cofferdam construction, the earth rock cofferdam structure comprises two cofferdam main bodies arranged on the upstream and downstream of a river channel, the cofferdam main bodies are transversely arranged in the river channel and fixedly connected with river banks on the two sides of the river channel, and diversion canals are formed in the river banks at the same ends of the two cofferdam main bodies; the diversion canal is communicated with the upstream and downstream of the river channel, and a diversion foundation wall is arranged on the side, close to the cofferdam bodies, of the diversion canal and fixedly connected with the ends, close to the diversion canal, of the two cofferdam bodies. The diversion canal is excavated on the river bank located at the same end of the two cofferdam bodies, the diversion canal guides water flow on the upstream of the river channel to the downstream of the river channel, the diversion canal is formed in the river bank to replace a tunnel, and it is avoided as much as possible that the tunnel is scoured for a long time, collapses and influences a construction site in the cofferdam.

The application relates to the technical field of shoe accessory, in particular to a shoe-pad rear-heel supporting structure and a forming die thereof, which comprises a bottom die, a middle die and a top die, the bottom die is rotationally connected with the middle die, the top die is rotationally connected with the bottom die, the middle die is located between the bottom die and the top die, a placing seat for placing a supporting plate is arranged on the bottom die, a through seat hole for the placing seat to pass through is arranged on one side of the middle die close to the bottom die, a palm-pad protrusion is arranged on one side of the top die close to the middle die, a bottom groove is arranged on the middle die, the through seat hole and the bottom groove are in communication, a surrounding ring is arranged on the middle die, the palm-pad protrusion, the bottom groove, the placing seat and the surrounding ring are enclosed to form a closed cavity for forming a rear palm pad in the state that the bottom die, the middle die and the top die are mutually overlapped, and a locking assembly is arranged on the bottom die. The application has the effect of improving the combination tightness between shoe-pad components.

The invention belongs to the technical field of stamping, and particularly relates to a progressive die stamping device and method for a metastable stainless steel multi-bending component. The device comprises a base, and a blanking unit and a multi-stage stamping die unit which are sequentially arranged on the base, the punching unit comprises a pressing die assembly, a punching die assembly, a pressing die locking mechanism and a punching die locking mechanism. A guide column is arranged on the base, the pressing die assembly and the punching die assembly are in sliding fit with the guide column, the pressing die assembly is used for pressing a progressive die punching metal plate, and the punching die assembly is used for punching the progressive die punching metal plate; the pressing die locking mechanism and the punching die locking mechanism are arranged on the two sides of the base correspondingly, the pressing die locking mechanism is used for locking the pressing die assembly, and the punching die locking mechanism is used for locking the punching die assembly; the multi-stage punching die unit is used for conducting multi-stage punching and blanking on the punched part of the progressive die punching metal plate in sequence. According to the method, high-efficiency, low-cost and batch stamping forming of the low-temperature high-toughness thin-wall multi-bending component is achieved, and the formed part does not need follow-up heat treatment annealing.