Casting vibration stress relief system and vibration stress relief method thereof

Abstract

The invention relates to a casting welding stress processing technology, in particular to a casting vibration stress relief system and a vibration stress relief method thereof. The casting vibration stress relief system comprises a plurality of elastic cushion blocks which are arranged at the bottom of a casting and used for supporting the casting in a suspended mode, an exciter fixed to the casting and an acceleration sensor, wherein the exciter is provided with an eccentric distance adjustment device, the vibration amplitude is adjusted by adjusting the eccentric distance of the exciter, and the rotation speed of the exciter is controlled through a controller; the controller comprises an exciter rotation speed control module, a time control module, a display module and a manual button, wherein the exciter rotation speed control module is used for controlling the acceleration of increasing and decreasing of the rotation speed of the exciter, thereby adjusting the rotation speed that the vibration frequency reaches the resonance frequency; the time control module is used for controlling the resonance time of the exciter; the display module is used for displaying the vibration curve of the exciter and the parameters of the acceleration sensor; the manual module is used for starting and stopping the exciter and switching the rotation speed increasing and decreasing gears of the exciter.

Description

technical field [0001] The invention relates to casting welding stress treatment technology, in particular to a casting vibration stress relief system and a vibration stress relief method thereof. Background technique [0002] In the production process of steel castings, some casting defects such as inclusions, slag inclusions, cracks, and shrinkage porosity will inevitably occur. On the one hand, these defects are produced during the pouring and solidification of materials, and on the other hand, they are related to the structural differences of castings, non-destructive testing and other technical requirements. To deal with these defects, it is usually necessary to dig out the defects and solve them by welding. However, whether it is the defect welding of the casting itself or the structural welding of the casting and other external parts, a large welding stress will be generated at the welding position. If the welding stress cannot be eliminated in time, there will be r...

AI Technical Summary

Problems solved by technology

In actual production, castings are transferred to a local heat treatment area, and welding stress is eliminated by heating devices such as electromagnetic inductors or electric blankets, which will also increase the production cycle and cost of castings

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