Charpy impact specimen reconstruction device and method based on remote clamping and stud welding

Abstract

The invention relates to a Charpy impact sample reconstitution device and method based on remote control clamping and stud welding. The reconstitution device comprises a cutting machine, a movable clamping mechanism, a welding clamp and a capacitance energy storage type stud welding machine, wherein the cutting machine is used for cutting standard Charpy impact sample sections broken in Charpy impact tests to obtain a middle insertion section; the movable clamping mechanism is used for clamping and conveying the sample sections to be reconstituted, and the sample sections to be reconstituted comprise the middle insertion section and end connecting sections; the welding clamp is used for clamping the sample sections to be reconstituted; and the capacitance energy storage type stud welding machine achieves closed-loop circuit connection through electrode bolts and the sample sections to be reconstituted on the welding clamp and is used for welding the sample sections to be reconstituted to achieve sample reconstitution. Compared with the prior art, the device and method have the advantages of that the device is accurate, stable and low in connecting cost, and the centering performance of the reconstituted samples is good.

Description

technical field [0001] The invention belongs to the technical field of Charpy impact sample reconfiguration, and relates to a Charpy impact sample reconfiguration device and method, in particular to a Charpy impact sample reconfiguration device and method based on remote clamping and stud welding . Background technique [0002] The aging degree of the nuclear reaction pressure vessel can be evaluated by the ductile-brittle transition curve obtained from the Charpy impact specimen placed in the nuclear reaction pressure vessel in advance. However, the space for placing supervision samples in the container is limited, and it is impossible to place too many Charpy impact samples. With the help of sample reconstruction technology, the broken Charpy impact sample can be reconstructed into a new sample, the original broken sample can be used to obtain more data, and the irradiation supervision sample can be saved to obtain a newer sample under the irradiation dose. A large numbe...

AI Technical Summary

Problems solved by technology

For manual argon arc welding, due to the difficult operation of the cooling method during welding and the unstable temperature during welding, it is not suitable for sample reconstruction

For laser welding, it can meet the requirements of sample reconstruction, but the cost is too high and the efficiency is low

Welding works well for electron beam, but equipment and connection methods are expensive and not suitable for extensive specimen reconstruction

Images