8results about How to "Improve mechanical bonding" patented technology

The invention relates to the technical field of sealing rings, in particular to a micro-textured super-wear-resistant sealing ring and a preparation method thereof. The sealing ring is composed of a rubber ring base body, a silicon transition layer and a silicon-doped diamond-like functional layer, a micro-texture area is arranged on the whole or part of the surface of the rubber ring base body, pits are formed in the micro-texture area, the silicon transition layer is attached to the whole or part of the surface of the rubber ring base body, and the silicon-doped diamond-like functional layer is arranged on the silicon-doped diamond-like functional layer. The silicon transition layer covers all or part of the micro-texture area, and the silicon-doped diamond-like functional layer is attached to the silicon transition layer. The sealing ring is small in friction coefficient, high in bonding strength, high in hardness, good in wear resistance and long in service life.

The invention discloses a connector connecting structure for a warm mattress, which aims to keep the electrical connection between a warm mattress body and an external power supply stable, and comprises a connector body part arranged on the side surface of the warm mattress body on the inner side of a warm mattress fabric; the terminal first sealing cover part is fixed on the outward surface of the outer layer fabric of the warm mattress, is combined with the connector body part and is used for supplying power to the warm mattress body; and a second cover portion covering and attaching the first cover.

The invention discloses a spinning method for improving washability of a fabric and a preparation method of the fabric, and relates to the technical field of preparation of the fabric, and the spinning method comprises the following steps: pretreating a spinning fiber raw material to remove impurities in the raw material; the pretreated spinning fibers are synthesized into fiber bundles, and the fiber bundles are stretched, so that the fiber bundles are refined and reach the required linear density; in the spinning nozzle, air is utilized to enable the fiber bundles to move along the spiral channel, and the fiber bundles are twisted under the action of centrifugal force; and the fiber bundles are gradually condensed and twisted into newly formed yarns under the action of specific airflow to form yarn cores. According to the spinning method, the fibers form a multi-point crossed entangled structure in the yarns under the action of airflow, so that the friction force among the fibers is enhanced, and the strength and the elasticity of the yarns are improved; the formed yarn has an open structure and has more gaps and channels, so that a path for dye to enter the interior of the fiber is provided, and the dyeing effect of the fabric is better.

This utility model discloses a subframe bushing plastic-coated inner core with an anti-rotation and anti-slip structure, comprising an inner core and an outer plastic layer; the outer surface of the inner core is provided with multiple vertically arranged anti-rotation protrusions; the anti-rotation protrusions are provided with a crisscrossing fish-scale pattern. This subframe bushing plastic-coated inner core significantly improves the mechanical bonding force with the plastic coating layer by optimizing the surface structure of the metal inner core, thus possessing outstanding advantages in anti-rotation, anti-slip, lightweight, process feasibility, and environmental adaptability. By designing a composite anti-slip texture on the surface of the metal inner core, bidirectional mechanical locking in both axial and circumferential directions is achieved, avoiding the limitations of traditional single-pattern designs.

The invention relates to a novel composite noctilucent material, a preparation method thereof and application of the novel composite noctilucent material in pet garment fabric, and belongs to the technical field of noctilucent materials. The novel composite noctilucent material comprises a substrate layer, and a first packaging layer, a second packaging layer and a surface layer which are sequentially loaded on the surface far away from the substrate layer, the subbase layer is a long-section fiber layer and comprises a silicon resin mixture; the silicon resin mixture comprises silicon resin, a silane coupling agent modified nano oxide and a toughening agent; the first encapsulation layer comprises an aluminate afterglow material, the silicon resin mixture and zirconium oxide; the second encapsulation layer comprises a silicate afterglow material, the silicon resin mixture and cerium oxide; the surface layer comprises the silicone resin mixture, a cured product and short-segment resin fibers. According to the invention, a typical fiber reinforced composite material structure is formed by using the long-section fiber layer as a macroscopic skeleton and the short fiber in the packaging layer as a microcosmic reinforcement, so that cracks or defects caused by stress concentration on brittle luminescent material microcrystals are prevented.

This invention discloses a wear-resistant aluminum alloy power cable and its manufacturing equipment, relating to the field of cable manufacturing technology. A fixed wheel frame is slidably connected to the top of the centrifugal frame via two centrifugal sliding rods. A clamping wheel is rotatably installed inside the fixed wheel frame, and a clamping spring connects the fixed wheel frame to the top of the centrifugal frame. A gas collecting ring box is installed on the outside of the linkage plate, and a sealing ring is rotatably connected to the inside of the gas collecting ring box. Three gas distribution pipes are evenly spaced inside the sealing ring, and a plasma generator is connected in the middle of the gas distribution pipes. When the assembly frame stops rotating, the clamping springs rebound, and the clamping wheels tightly clamp and fix the steel strip, preventing it from loosening and improving the wrapping quality of the steel strip. Compressed air blows out the plasma generated by the plasma generator, which bombards the surface of the wrapped steel strip, forming a micro-uneven structure, allowing the outer sheath to better adhere to the steel strip armor layer, thus improving the quality of the finished cable.

The invention discloses a thermal barrier coating for a high-temperature alloy surface and a preparation method, the thermal barrier coating comprises a bonding layer, a first ceramic thermal insulation layer, a second ceramic thermal insulation layer and a sacrificial coating from near to far from the high-temperature alloy surface, the roughness Ra of the interface of the bonding layer and the first ceramic thermal insulation layer is 11-13 microns, and the roughness Ra of the interface of the second ceramic thermal insulation layer is 11-13 microns. The roughness Ra of the interface of the first ceramic heat insulation layer and the second ceramic heat insulation layer is 12-17 microns, the first ceramic heat insulation layer comprises ZrO2 and Y2O3, the mass percent of Y2O3 is 6%-8%, the second ceramic heat insulation layer comprises ZrO2, Y2O3, Yb2O3 and Gd2O3, the mass percent of Y2O3 is 9%-10%, the mass percent of Yb2O3 is 5%-6%, the mass percent of Gd2O3 is 4.7%-5.7%, the mass percent of Gd2O3 is 5%-6%, and the mass percent of Gd2O3 is 5%-7%. Through spraying equipment, spraying of a bonding layer on the surface of the high-temperature alloy, sand blasting of the bonding layer to improve the surface roughness and spraying of a first ceramic heat insulation layer are completed firstly, in at least the last time of spraying, the spraying angle is changed, the surface roughness of the first ceramic heat insulation layer is improved, and finally, a second ceramic heat insulation layer and a sacrificial coating are sequentially sprayed.

The invention discloses an efficient preparation method of a textured reinforced metal / carbon fiber sandwich composite plate. The method aims to solve the problem that, during the preparation of metal and carbon fiber composites, due to poor wettability of the interface between carbon fiber and metal, carbon fiber is very likely to generate brittle metal carbides with metal at high temperature, thereby reducing the bonding strength. The invention proposes placing the carbon fiber composite material in the middle of a folded metal plate for hot rolling, and by means of the light weight and high strength of the carbon fiber composite material and the functional characteristics of the metal material, forming a mesh structure flexible transition layer with textured metal as the skeleton and resin as the filler at the connection interface, thereby obtaining a structurally functional textured reinforced metal / carbon fiber sandwich composite plate. The processing process is simple, low in cost and high in efficiency, and can effectively solve the problem of low interface bonding strength and poor structural performance caused by sudden changes in the physical and chemical properties of the materials at the connection interface of dissimilar materials.