Shot peening machine for processing surface deformation strengthening treatment to magnesium alloy sample

Abstract

The present invention relates to a device in the technical field of material processing, in particular to a peener which carries out the surface deformation strengthening process on magnesium alloy samples. The present invention comprises a main peening system, an upper whirlwind separation system, a dedusting system, an air compression system and an electric system, wherein, the upper whirlwind separation system is positioned on the upper end of the main peening system, the lower part of the upper whirlwind separation system is communicated with the main peening system, the upper part is connected with the dedusting system, which is positioned outside the main peening system, the air inlets of both the dedusting system and the main peening system are connected with the air compression system, and the electric system is connected with the main peening system, the upper whirlwind separation system, the dedusting system and the air compression system. The present invention can conveniently assemble and disassemble the samples of the shaft class, the range of the generated peening strenghth is wide, the effect and uniformity of peening is good, and moreover, pollution can be prevented.

Description

technical field [0001] The invention relates to a device in the technical field of material processing, in particular to a shot peening machine for performing surface deformation strengthening treatment on a magnesium alloy sample. Background technique [0002] Fatigue fracture has always been the most important form of damage to mechanical parts and engineering components. In aerospace, shipbuilding, chemical machinery, transportation, engineering machinery and other fields, about 50-90% of structural strength damage is caused by fatigue damage. Magnesium alloy is a metal material with great development potential, and the improvement of fatigue performance is conducive to expanding its application field. As we all know, shot peening is a commonly used method to improve the fatigue strength and fatigue life of magnesium alloys. However, when shot peening the standard specimens of magnesium alloy shafts, there are still the following problems: 1. How to clamp the shafts for ...

AI Technical Summary

Problems solved by technology

As we all know, shot peening is a commonly used method to improve the fatigue strength and fatigue life of magnesium alloys. However, when shot peening the standard specimens of magnesium alloy shafts, there are still the following problems: 1. How to clamp the shafts for testing Sample? Second, the uniformity of the surface state of the sample after shot peening is an important indicator to measure the shot peening effect, so how to improve the uniformity of shot peening? Third, the impurities introduced in the shot peening treatment will reduce the corrosion performance of the magnesium alloy after treatment. How to prevent or reduce the contamination of the magnesium alloy sample by the impurities? Fourth, because the optimum shot peening intensity of magnesium alloy materials is small, it is difficult for conventional shot peening machines to meet the requirements. How to obtain the required shot peening intensity?

[0003] After searching the literature of the prior art, it is found that the Chinese invention patent number is 03822331.7, and the publication number is CN1681623. This patent provides a shot blasting device. The carrier gas pressure of the device can be as small as 0.1MPa, but how to clamp the shaft Problems such as similar workpieces are not involved; Chinese utility model patent number 200520114816.3, patent authorization announcement number is CN2863267Y, this patent provides a kind of elevated gantry type spray gun mobile device, including mainly composed of gantry type truss or box type column and beam Elevated platform, the elevated platform is equipped with a trolley that can move horizontally, a number of brackets are fixedly installed on the trolley, and the bracket has a vertical guide rail and a spray gun holder that moves the device with the vertical guide rail. The spray gun holder is equipped with a drive The lifting motor for lifting and moving, the disadvantage of this device is that the volume is too large, the structure is complicated, the spray gun cannot move horizontally reciprocating, and the moving speed is not adjustable, so the uniformity of the magnesium alloy shot peening effect cannot be guaranteed. Protection against contamination of materials, especially non-ferrous metal materials, during the process is also not mentioned

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