How to choose the length of rivets

1, in order to prevent electrochemical corrosion, it is necessary to use rivets with the same material as the connected parts, so as not to affect the riveting strength of rivets due to different linear expansion coefficients.

2. Secondly, choose rivets according to the performance of connectors. For example, when connecting aluminum alloy sheets, you can choose large flat-headed solid rivets to ensure that the thin aluminum sheets are not crushed; If the thickness of aluminum alloy profile is large, solid rivet with round head can be selected to increase its composite connection force.

3. Choose rivets according to operating characteristics. If double-sided operation is possible, solid rivets are generally selected; If it can only be operated unilaterally, select the core-pulling rivet; If the single-sided operation space is small, single-sided operation can be carried out, and flower rivets can be used, that is, the tail of the core rod is unfolded and fixed by hitting.

Extended data:

Rivet fasteners are different from traditional bolts, which generate fastening force through torsional rotation. The rivet fastener uses Hooke's Law principle, and through the special riveting equipment, under the action of unidirectional tension, the bolt rod is stretched to push the collar, and the inner smooth collar is squeezed into the threaded groove, so that the collar and the bolt form a combination of 65,438+0,000%, and a permanent fastening force is generated.

In practical engineering applications, rivet guns (also known as riveting guns) are commonly used, which are operated by workers' hands. First, pull the riveting gun apart, then insert the rivet into the riveting gun, aim at the part to be riveted (such as the connection part between the vertical light steel keel and the light steel keel of Tiandi), and close the riveting gun to achieve the riveting effect.

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