How to solve the problem of easy detachment of rivet nuts

Rivet nut (also known as embedded nut, embedded nut or press in nut) is a type of nut that is fixed to a material (usually a thin plate) by pressure. They are typically used in materials such as metal sheets, plastics, or composite materials that are difficult to directly tap. However, during use, there may be a problem of rivet nuts easily falling off. To solve this problem, we can start from the following aspects:

1. Check the riveting tools and processes

Tool selection: Ensure that the correct riveting tool is used. Different materials and thicknesses require matching with different tools, and incorrect tools may result in unstable riveting.

Riveting process: Strictly follow the manufacturer's instructions to ensure that the pressure and speed applied during the riveting process are moderate, avoiding poor fixation caused by excessive or insufficient force.

2. Nut and material matching

Size matching: Check if the nut diameter matches the plate aperture. Excessive or insufficient aperture can affect the fixing effect of the nut.

Material compatibility: Confirm the compatibility between the nut material and the sheet material. There may be chemical reactions or poor adhesion between certain materials.

3. Improve board design

Thickness of the board: If the board is too thin, it may cause the rivet nut to not be firmly fixed. If possible, increase the thickness of the board to improve the fixed strength.

Strengthening structure: Add support structures such as protrusions or reinforcing ribs on the back or around the board to improve the gripping force of the nut.

4. Use enhanced fixation methods

Welding: For metal plates, it is possible to consider welding the nut onto the plate first, and then riveting it, which can significantly improve the reliability of fixation.

Adhesive bonding: In some cases, using structural adhesive to secure nuts to the board is also a feasible method, especially for non-metallic materials.

Pre tapping: For materials that allow tapping, tapping can be done on the sheet in advance, and then the nut can be screwed in to enhance the fixing effect.

5. Choose reinforced rivet nuts

There are some reinforced rivet nuts on the market specifically designed to solve the problem of weak fixation, such as those with locking rings or expansion tails. These special designs can increase the friction between the nut and the plate, thereby improving the fixing strength.

6. Add secondary fixed measures

In some key applications, secondary fixing measures can be considered, such as using screws and nuts to fix, or using other mechanical fixing methods such as buckles to reinforce.

conclusion

To solve the problem of easy detachment of rivet nuts, multiple aspects need to be considered, including but not limited to the selection of tools and processes, material compatibility, design improvement of plates, and methods of enhancing fixation. In practical operation, it may be necessary to take one or more measures based on specific circumstances to achieve a fixed effect.