4results about How to "Easy to plating" patented technology

The invention discloses a bipolar current collector with double copper layers and a preparation method thereof, and relates to the field of battery current collectors, the current collector takes an aluminum foil as a substrate, and a compact first copper layer prepared by magnetron sputtering and a thickened second copper layer prepared by electroplating are sequentially arranged on one side of the substrate. The first copper layer is prepared by adopting an intermittent deposition method, a pause interval is set in the deposition process, and substrate heating and low-energy ion beam bombardment are assisted, so that the compactness and the bonding strength of a plating layer are remarkably improved; and the second copper layer is prepared by adopting a pulse electroplating method, so that the non-porous and uniform structure is further ensured. Through a sputtering and electroplating composite process, a copper-aluminum interface which is high in binding force and free of defects is successfully constructed, electrolyte permeation is effectively blocked, and generation of lithium-aluminum alloy is prevented, so that the use safety of the bipolar current collector is greatly improved, and the cycle life of a battery is greatly prolonged.

The utility model discloses a split type heating block structure which comprises a connecting frame, and the connecting frame and a translation assembly used for pushing the connecting frame to move horizontally are integrated on the outer surface wall of the connecting frame. According to the device, after the tray component is transferred to the corresponding station and fixed, a driving piece is matched with a chain to drive a supporting frame and a sliding base at the top of the supporting frame to slide along a sliding rail, the supporting frame is in linkage with a heating plate till the heating plate is arranged above the tray component, and a lifting motor is matched with a transmission rod and a threaded rod to drive the heating plate to move downwards; the heating metal strip is matched with the heat conduction plate to achieve hot melting of the tray component, the operation space of the top of the tray component is guaranteed through the heating plate which can be arranged in a receding mode, a traditional integrated metal strip is divided into six sets of split bodies of an S-shaped structure, follow-up maintenance is facilitated, and meanwhile the welding efficiency is improved. Once local problems occur, only the split bodies need to be replaced correspondingly.

This invention discloses a connection structure and fastener, comprising a fastener including a body, an insert portion disposed at one end of the body, and a washer installed within the insert portion. The body has an axially penetrating inner hole, the inner wall of which has an internal thread adjacent to the insert portion. The washer is interference-fitted with the insert portion, thereby forming a blind hole in the fastener. The other end of the body also has a riveting portion; a plate having a riveting hole for connecting with the riveting portion, the fastener being interference-fitted with the plate; and a bolt including a threaded shank threadedly connected to the body of the fastener and a nut connected to the end of the shank away from the fastener. The bolt is used to fix at least one connector, the connector being fitted against the side of the plate away from the fastener, and the nut abutting against the other side of the connector, thereby fixing the connector. In this invention, the internal thread of the fastener penetrates the body, having a longer effective thread length within a limited axial space, thereby ensuring connection strength.

The application discloses a strawberry soil culture seedling digging device, which comprises a sleeve, a supporting cylinder is slidably connected to the outside of the sleeve, a rotating shaft is rotatably connected to the inside of the sleeve, the lower end of the rotating shaft extends into the inside of the supporting cylinder, a pressure plate is transmissionally connected to the lower end of the rotating shaft, a plurality of spades are evenly hinged to the circumference of the pressure plate, and each spade is slidably connected to the inner side of the supporting cylinder. The device generates downward driving force through the rotating shaft, drives the spades to be inserted into the soil, and cooperates with adjacent spades to cut the creeping stems while digging the soil, so that the high-quality seedling digging can be rapidly and accurately realized.