Abstract: An arc additive apparatus, a control method for an arc additive apparatus, and a storage medium are disclosed. The arc additive apparatus includes: an additive welding gun, configured to melt a wire to perform additive manufacturing on a workpiece to be machined; a mechanical vibration device, arranged below the workpiece; an ultrasonic auxiliary device, arranged at a side of the additive welding gun; and a control device, configured to control the ultrasonic auxiliary device to form an ultrasonic field below the additive welding gun, and to control, when welding at a position where additive manufacturing is to be performed by the additive welding gun, the mechanical vibration device to perform a mechanical vibration in different modes separately during and at the end of a welding process of the additive welding gun.

Abstract: An arc additive apparatus and method, and a storage medium are disclosed. The arc additive apparatus includes: an additive welding gun, configured for melting a wire to perform additive manufacturing on a workpiece to be machined; a bypass ultrasonic device, arranged at a side of the additive welding gun; a bottom ultrasonic device, arranged below the workpiece; and a control device, configured for controlling the bypass ultrasonic device to emit ultrasonic waves below the additive welding gun so as to adjust a frequency of droplet transfer of the wire and controlling the bottom ultrasonic device to perform ultrasonic impact on the molten wire on the workpiece.

Abstract: The present disclosure provides an electrolytic module unit based on a boron-doped diamond (BDD) electrode, including a water flow guide module and an electrolytic module. The electrolytic module is provided within the water flow guide module. The electrolytic module includes a BDD electrode including a main body portion and a plurality of branch portions disposed on two sides of the main body portion. The main body portion and the plurality of branch portions on two sides of the main body portion constitute a fishbone-like structure. The BDD electrode of the electrolytic module unit is of the fishbone-like structure.

Abstract: The present disclosure provides an electrolytic module unit based on a boron-doped diamond (BDD) electrode, including a water flow guide module and an electrolytic module. The electrolytic module is provided within the water flow guide module. The electrolytic module includes a BDD electrode including a main body portion and a plurality of branch portions disposed on two sides of the main body portion. The main body portion and the plurality of branch portions on two sides of the main body portion constitute a fishbone-like structure. The BDD electrode of the electrolytic module unit is of the fishbone-like structure.

Abstract: Disclosed herein are mono- and di-substituted tetrazines and methods of their preparation and converting an oxetanyl ester to a thio-substituted tetrazine, which is then converted to a mono-substituted tetrazine, a di-substituted tetrazine, or a vinylether disubstituted tetrazine.

Abstract: Disclosed herein are mono- and di-substituted tetrazines and methods of their preparation and converting an oxetanyl ester to a thio-substituted tetrazine, which is then converted to a mono-substituted tetrazine, a di-substituted tetrazine, or a vinylether disubstituted tetrazine.