6results about How to "Avoid galvanic corrosion" patented technology

The utility model relates to the field of parts of connecting device, concretely relates to a kind of aluminium row connecting structure and electric connection assembly.The aluminium row connecting structure is used to solve the gap space between the copper ring and aluminium row of the aluminium row connecting structure of existing aluminium row connecting structure if entering water vapor or impurity is easy to make both electrochemical corrosion, affect the reliability of electric connection.The aluminium row connecting structure includes aluminium row, the side of the connecting end of aluminium row is attached to copper ring towards connecting piece, copper ring is provided with protective plating layer to avoid electrochemical reaction with aluminium row.So, it can effectively prevent water vapor or impurity from entering between the contact surface of copper ring and aluminium row and then electrochemical corrosion occurs, ensure the reliability of electric connection, also ensure the stability of entire circuit.

Provided is a joint of a copper terminal and an aluminium conductor. A copper terminal connecting member of the joint is connected to a conductive core of the aluminium conductor by means of a transition welding layer, and the joint can also be provided with a reinforcing welding layer. Further provided is a method for preparing the joint using plasma arc welding. According to the invention, the connection portion of the copper terminal with the aluminium conductor is filled with solder in a plasma arc welding manner, such that copper and aluminium are connected by means of the solder. Damage to an aluminium oxide layer during welding increases the conductivity and can also isolate the copper terminal and the aluminium conductor, thus preventing an electrochemical reaction between the copper and the aluminium, prolonging the service life of the joint of the copper terminal and the aluminium conductor, and ensuring the mechanical and electrical performances of the connection structure.

The utility model discloses corrosion monitoring equipment, including corrosion monitoring device and first connecting piece, corrosion monitoring equipment includes insulating shell, at least one for monitoring corrosion's sample to be measured, first fixed structure and the second fixed structure of setting corresponding each sample to be measured, the shell is the hollow structure of two end portions closed, and the upper side is equipped with a plurality of intercommunication holes, the sample to be measured is located the inside of shell and is fixed through the second fixed structure, and the intercommunication hole is connected with the outside in the inside of shell, the lateral surface of shell is equipped with the accommodation groove, and the first connecting piece part is located in the accommodation groove and is fixed through the first fixed structure. The porous insulating shell of the corrosion monitoring device can form flowing bin, can guarantee sample to be measured and outside fluid full contact, can prevent sample to be measured and shell contact and take place galvanic corrosion simultaneously, and corrosion monitoring effect is reliable. And, the corrosion monitoring equipment is integral type detachable structure, can be used repeatedly, saves manual and material cost.

This invention provides a vehicle body structure and a vehicle, the vehicle body structure including magnesium alloy structural components, aluminum structural components, and steel structural components; the steel structural components and magnesium alloy structural components are respectively connected to opposite sides of the aluminum structural component; the magnesium alloy structural component has at least one connecting area for connecting the aluminum structural component, the connecting area having multiple clearance gaps, and the aluminum structural component has multiple first connecting points for connecting the steel structural component, each first connecting point being opposite to a clearance gap. This invention improves the corrosion resistance of the vehicle body structure, ensures the safety of the vehicle body structure, and achieves a lightweighting and weight reduction effect.

This invention relates to the field of converter stations, specifically to a UHV converter station connection fitting and a UHV converter station. The UHV converter station connection fitting includes a copper clamp for fixed connection to the terminals of a wall bushing and at least two sets of terminal block assemblies for fixed connection to split conductors. Each terminal block assembly includes an aluminum terminal block and an aluminum pressure block fixed to the aluminum terminal block. The aluminum terminal block is fixedly connected to the copper clamp. The aluminum terminal block has a terminal block contact surface, and the copper clamp has a clamp contact surface that makes conductive contact with the corresponding terminal block contact surface. Both the clamp contact surface and the terminal block contact surface are plated with a metal plating to prevent electrochemical corrosion between the two contact surfaces. Designing the clamp for fixed connection to the terminals as a copper clamp increases the current carrying capacity and effectively reduces the temperature rise of the wall bushing and connection fitting. The metal plating on the clamp contact surface and the terminal block contact surface prevents electrochemical corrosion between the two contact surfaces.

This application belongs to the field of display driving technology, specifically relating to a gate driving circuit, a fabrication method, and a display panel. The gate driving circuit includes N cascaded GOA circuit units; a reset signal line disposed on any side near the GOA circuit unit, electrically connected to the gate of a reset transistor, and located on the same metal layer as the gate of the reset transistor; a cathode signal line disposed on the same side as the reset signal line and away from the GOA circuit unit; the cathode signal line electrically connected to the drain or source of the reset transistor, and located on the same metal layer as the source or drain of the reset transistor; and multiple clock signal lines disposed between the reset signal line and the cathode signal line, electrically connected to the clock signal line of the GOA circuit unit. This application eliminates the presence of ITO vias on the low-level signal lines, avoiding electrochemical corrosion of the ITO layer in high-temperature and high-humidity environments, thus improving the stability of the gate driving circuit.