7 results about "Ebonite" patented technology

The application discloses an aluminum alloy profile pipe and a preparation method thereof, and aims to provide the aluminum alloy profile pipe and the preparation method thereof, which are processed in the same working position through bending and welding, are simple to operate, and save processing time. The aluminum alloy profile pipe comprises a forming pipe, the middle part of the forming pipe is in an arc shape, the outer side wall of the arc-shaped part of the forming pipe is connected with a mounting buckle, and the mounting buckle is provided with a mounting hole. The core rod inserted in the application is made of hard plastic or hard rubber material, can ensure the smoothness of the visible surface during the bending and forming of the mold, and will not be broken. The rubber sheet arranged can ensure that the forming pipe will not be scratched when being contacted with the forming pipe during the bending and forming, can ensure the smoothness of the visible surface, and can ensure the bending and forming quality of the forming pipe.

This invention discloses a long-life, universal vibration damping and noise reduction material for elevator systems and its preparation method, belonging to the field of elevator vibration reduction technology. It comprises multiple rubber layers, including at least two hard rubber layers and at least two soft rubber layers, with the hard and soft rubber layers alternately stacked. The difference in Shore A hardness between the hard and soft rubber layers is ≥30 degrees. The damping loss peak of the hard rubber layer is located in the high-frequency region, while the damping loss peak of the soft rubber layer is located in the low-frequency region. The vibration damping and noise reduction material has a loss factor ≥0.3 in the frequency range of 5–500 Hz. By limiting the hardness difference between the hard and soft rubber layers, this invention constructs a layer with significantly different macroscopic mechanical properties. The hard rubber layer acts as a high-frequency vibration energy dissipation layer, and the soft rubber layer acts as a low-frequency vibration energy dissipation layer, synergistically achieving high damping characteristics with a loss factor ≥0.3 in a wide frequency range of 5–500 Hz, effectively suppressing the vibration of the elevator system across the entire frequency band.

The utility model discloses a hydraulic scraping and rolling cutter belongs to the oil cylinder production and manufacturing technical field, a hydraulic scraping and rolling cutter, and the hydraulic scraping and rolling cutter is composed of cutter body, cutting part, rolling part, hydraulic system part, adjustment part, supporting part, and the cutting part includes rough cutter head, rough boring cutter, fine cutter seat, fine cutter blade, and the rolling part includes raceway, retainer, roller, roller expansion and contraction piston, and the hydraulic system part includes oil inlet pipe, fine cutter expansion and contraction piston, and the adjustment part includes fine cutter seat, fine cutter adjusting stud, precision locking nut, and the supporting part includes fine cutter seat anti -rotation key, supporting ebonite strip. It can rely on the mechanical extrusion mode, has improved the precision, straightness of oil cylinder pipe inner wall working operation, has improved the hardness and strength of oil cylinder pipe inner wall, has improved the smoothness of oil cylinder pipe inner wall, has the high processing efficiency, and the stability is stronger advantage.

The present application belongs to the field of fabricated building engineering, and particularly relates to a prefabricated reversible assembled multifunctional lattice filling wall and a mounting method thereof, which comprises a prefabricated lattice frame wall unit, connecting anchor bolts, a hard rubber sheet and a groove-shaped self-adhesive cover plate. The prefabricated lattice frame wall unit is provided with a plurality of reserved holes and reserved hole grooves, and adjacent prefabricated lattice frame wall units are connected through bolts. The connecting anchor bolts are connected with the outer wall beam columns through the reserved holes of the prefabricated lattice frame wall unit. The groove-shaped self-adhesive cover plate is arranged on the reserved hole groove, and the hard rubber sheet is arranged at the gap between the prefabricated lattice frame wall unit and the outer wall beam column. The present application is transported to the indoor by the elevator, is simple to assemble, has small decoration noise and low construction difficulty, and meets the multiple requirements of residents for flexible space layout, simplicity and reversible construction.

This utility model belongs to the field of injection molds, specifically an injection mold for an automotive rearview mirror with a material unloading structure. It includes a fixed mold, with multiple positioning rods fixedly connected to one side of the fixed mold; an injection port connected to the other side of the fixed mold; a movable mold slidably connected between the positioning rods; a main shaft fixedly connected to one end of the movable mold; first plates symmetrically fixed to both sides of the fixed mold; multiple hard rubber rods installed on both sides of the first plates; and two pairs of connecting rods rotatably connected to one side of the movable mold, with each pair of connecting rods located on both sides of the first plates and corresponding to the hard rubber rods. Through the cooperative action of the connecting rods and the hard rubber rods, the movable mold is subjected to frequent impacts from the balls during reset, thereby demolding and unloading the product inside the movable mold, reducing the operation required for demolding the injection molded part, and also reducing deformation and damage to the product caused by direct ejection.

The invention discloses flash pneumatic separation equipment for a rain plug injection molding frame, and belongs to the technical field of rain plug production and processing. The separation equipment comprises a workbench, a positioning seat is fixedly connected to the top of the workbench, a lower pressing plate is arranged above the positioning seat, a liftable pressed seat is arranged in an inner cavity of the positioning seat, a sealing assembly is arranged above the lower pressing plate, and the sealing assembly comprises a fixing frame fixedly connected to the top of the workbench. Through cooperative use of the positioning seat, the lower pressing plate, the pressed seat and the sealing assembly, the rain plug is sealed and pressed, so that the positioning seat and the lower pressing plate form a relatively closed cavity, and then under cooperative use of the air blowing assembly and the lower pressing plate, high-pressure air is instantly sprayed into the inner cavity of the pressed seat, so that the rain plug is subjected to air blowing separation; therefore, the purposes of batch stripping, stripping of soft and hard rubber materials and prevention of damage to the surface of the rain plug caused by physical contact can be achieved.

The utility model relates to the field of engineering crack treatment devices, and particularly provides a highway engineering crack treatment device. The device comprises the processing device, the processing device comprises the frame and the box body, the first protection mechanism is arranged, the position and the angle of the scraping plate can be accurately controlled through the fine adjustment function of the adjusting seat and the adjusting rod, accurate cleaning of sundries around a crack is achieved, and therefore the influence of the sundries on the crack filling effect is effectively avoided, and meanwhile the processing device is convenient to use. The height of the scraping plate is adjustable through the fixing holes formed in the adjusting rod, the requirement for cleaning cracks with different depths and widths is met, the adaptability of the device is improved, more importantly, the scraping plate is made of hard rubber, sufficient hardness is guaranteed to scrape impurities, damage to laid asphalt is avoided, and the service life of the device is prolonged. The technical problem that according to a traditional air exhaust type cleaning mode and an air blowing type cleaning mode, a sundry bag is frequently cleaned or joint filling asphalt is polluted is fundamentally solved.