2results about How to "Avoid oxidation" patented technology

This invention discloses a gas-saving mechanism for a welding robot, relating to the field of welding technology. It includes a gas-saving housing with a gas-saving valve fixedly connected inside. An electromagnetic device is mounted on the outside of the gas-saving valve, and the interior of the gas-saving valve is connected to the interior of the electromagnetic device. A magnetic rod is mounted at the connection point between the electromagnetic device and the gas-saving valve. A spring is fixedly connected inside the gas-saving valve, and a sealing plate is fixedly connected to the end of the spring away from the connection with the gas-saving valve. Through the instantaneous release of the elastic potential energy of the spring, an impact block instantaneously impacts a limiting rod. The impact on the limiting rod is transmitted to the impact rod, and this impact force is then transmitted to the sealing plate. The instantaneous impact loosens the sealing plate, preventing accidental jamming that could prevent effective opening and closing. This ensures the accuracy of gas emission and avoids situations such as insufficient gas leading to high temperatures at the welding position during welding, thus improving welding efficiency.

The utility model provides a kind of honeycomb sandwich composite electrode structure, it is related to molybdenum electrode oxidation resistance technical field, it includes: molybdenum matrix;Honeycomb core layer, by multiple honeycomb units connection composition, honeycomb core layer is located on the outer wall surface of molybdenum matrix;Each honeycomb unit and the cavity formed between the outer wall surface of molybdenum matrix, each honeycomb unit has first gas passage, one end of each first gas passage and corresponding cavity communication, other end extends to the outer surface of honeycomb core layer towards protective layer;Protective layer, it is located on the outer surface of honeycomb core layer, protective layer has multiple second gas passage;Wherein, second gas passage and first row passage number are consistent, and each second gas passage and corresponding first gas passage are communicated with each other.The electrode structure can protect molybdenum electrode, and greatly slow down the oxidation rate of molybdenum electrode.