Abstract: A target packaging auxiliary device includes: a support table; a support member mounted on the support table; a support rod for supporting a target, one end of the support rod is connected to the support member, and the other end of the support rod is suspended. The support member may be fixedly mounted on the support table or the support member may be rotatably mounted on the support table.

Abstract: A target conveying vehicle includes a lifting vehicle and a target fixing device. The lifting vehicle includes a vehicle body (1) and load bars (2) which are arranged on the vehicle body (1) and able to be elevated and lowered. The target fixing device is arranged on the load bars (2), and includes a target carrier mechanism and at least one locking mechanism arranged on the target carrier mechanism. The at least one locking mechanism is arranged for fixing the target on the target carrier mechanism.

Abstract: An atomization device for preparing metal alloy powder which includes a main body provided with an atomization chamber, the atomization chamber is provided with an inlet and an atomization zone, the inlet is configured to introduce metal alloy liquid; a high-pressure inert gas pipeline system that is configured to provide a high-pressure inert gas introduced into an atomization zone of the atomization chamber, to atomize the metal alloy liquid; and an oxygen-containing gas pipeline system that is configured to transfer oxygen-containing gas to the atomization zone.

Abstract: The present disclosure provides a cutter and a method for machining a tubular component. The cutter for machining a tubular component comprises a cutter body, a first cutter portion and a second cutter portion being provided on a front end in a longitudinal direction of the cutter body, the first cutter portion extending along the longitudinal direction of the cutter body, and the second cutter portion being located on a rear side of the first cutter portion in the longitudinal direction and protruding from a main side surface of the cutter body in a direction substantially perpendicular to the main side surface.

Abstract: A bar length detection tool and a method for detecting a length of a bar are provided, the bar length detection tool comprises: a substrate, a first bearing seat and a second bearing seat oppositely disposed on the substrate, and a micrometer; wherein a positioning device is rotatably connected to the first bearing seat, a mounting plate is rotatably connected to the second bearing seat, and the first bearing seat and the second bearing seat are each provided with at least two needle bearings.