Blasting experiment box

Abstract

A blasting experiment box is provided. Since corners of the upper cover and the lower cover are curved transition surfaces, the problem of stress concentration due to the presence of corners is effectively avoided, the welding strength of the welded surfaces of the upper cover and the lower cover can be obtained, and the smooth progress of the blasting experiment can be ensured; since the cornersof the upper cover and the lower cover are curved transition surfaces, the walls of the upper cover and the lower cover have better dispersibility; since the abutment surface of the upper cover and the abutment surface of the lower cover is stepped, the welded surface has the characteristics of a horizontal section, a circular section and an inclined section; and the welding pressure angles of each section are different, which is closer to the actual product, so that the influence of the welding pressure angle on the welding strength can be mastered in the experiment, and the true welding strength of the welded surface can be obtained.

Description

technical field [0001] The invention relates to the field of blasting experiments, in particular to an experiment box for blasting experiments. Background technique [0002] The blasting test box is mainly used to verify the welding strength of the two-part welded member at the welded part. The structure of the existing blasting test box is mainly a cube structure, a spherical structure or a capsule structure, and there are defects in the above three structures: 1. When choosing a blasting test box with a cubic structure, there are corners on the wall of the blasting test box with a cubic structure. , therefore, when carrying out the blasting experiment, it is easy to generate stress concentration at the corner of the wall, causing the corner to break before the welding part, so that the welding strength of the welding part cannot be obtained, resulting in the failure of the experiment. In addition, the wall of the blasting experiment box with a cubic structure They are all...

AI Technical Summary

Problems solved by technology

The structure of the existing blasting test box is mainly a cube structure, a spherical structure or a capsule structure, and there are defects in the above three structures: 1. When choosing a blasting test box with a cubic structure, there are corners on the wall of the blasting test box with a cubic structure. , therefore, when carrying out the blasting experiment, it is easy to generate stress concentration at the corner of the wall, causing the corner to break before the welding part, so that the welding strength of the welding part cannot be obtained, resulting in the failure of the experiment. In addition, the wall of the blasting experiment box with a cubic structure They are all planes, and they all bear force along their normal direction when they are stressed, so there is only one direction of force. It can be seen that their dispersion is not as good as that of arc-shaped walls when they are stressed; 2. When choosing For the blasting test box with spherical structure or capsule structure, the wall surface is arc-shaped, which can improve the blasting resistance of the blasting test box, and effectively prevent the wall of the test box from breaking before the welding part due to stress concentration, so as to ensure the smoothness of the experiment. However, due to the structural symmetry and shaping of the upper and lower boxes in consideration of the blasting test box of spherical structure or capsule structure, its welding surface can generally only be designed as a plane, so there is no welding pressure angle on the welding surface (the welding pressure The angle is the angle between the welding surface and the horizontal plane), and almost all actual products have welding pressure angles. It can be seen that it is difficult to verify the influence of welding pressure angle factors on welding strength with spherical or capsule-shaped blasting test boxes, and it is impossible to obtain the welding position The real welding strength of

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