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What is the difference between a rivet nut and a rivet nut? How to install the rivet nut?

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What is the difference between a rivet nut and a rivet nut? How to install the rivet nut?

Date of issue:2022-06-24 09:24 Source:http://en.hongrui59.com Click:

What is the difference between a rivet nut and a rivet nut? How to install the rivet nut?

The rivet nut is pressed into the steel plate, and is usually suitable for thicker steel plates. The nut will not deform after it is installed, but the holes on the steel plate should be enlarged. The rivet nut is to sandwich the steel plate in the middle, which is suitable for a relatively thin steel plate. After installation, the steel plate is not deformed, but the nut is deformed to clamp the steel plate. If the riveting nut installation is professional, you need to open the abrasive tool and use a riveting machine. If it is non-professional, you can install a few by yourself and knock it in directly with an awl. For riveting, a riveting gun (manual or pneumatic) is required, and there is no way to use a hammer. Just look at the picture and it's intuitive.

Introduction to the principle of pressure riveting nut

There is no unified standard for rivet nuts in China. After being imported from abroad, the existing industry standards have finally been formed through the development of industrial production. Its specifications are serialized and can meet various design requirements. The rivet nut is small in size and exquisite in design, and can be used in electronic products and precision equipment and instruments. Since the installation process only requires simple riveting and has high torque resistance, it is very convenient to equip. So what is the principle of the pressure riveting nut? What should be paid attention to when using the pressure riveting nut?

The principle of pressure riveting nut

The rivet nut is a kind of nut applied to thin plate or sheet metal. The shape is round and one end has embossed teeth and guide groove. The principle is to press the embossed teeth into the preset holes of the sheet metal. Generally, the diameter of the square preset holes is slightly smaller than the embossed teeth of the pressure riveting nut. The periphery of the hole is plastically deformed, and the deformed object is squeezed into the guide groove, thereby producing a locking effect. Pressure riveting nuts are mainly used in non-structural bearing bolt connections, such as the connection of rail passenger cars, highway passenger cars, boat parking and other interior parts. The improved rivet nuts that can prevent spinning are better than aircraft pallet nuts. It is lighter in weight, no need to rivet the pallet nut in advance, and there is no operating space on the back of the substrate, which can still be used.

The pressure riveting nut is divided into free-cutting steel pressure riveting nut S type, stainless steel pressure riveting nut type CLS, stainless iron pressure riveting nut SP type, and copper and aluminum pressure riveting nut, etc., which should be used in different ways. ring environment. Sizes usually range from M2 to US size 2 to 1/2. Foreign pressure riveting nuts are mostly produced by cold pier machines, and domestic ones are mostly processed by automatic vehicles. Although there is no difference in quality between the two, they are incomparable in terms of efficiency, and they are still more powerful in foreign countries. The main brand of pressure riveting nuts is PEM, and the classification rules of domestic pressure riveting fasteners are carried out according to its classification.

Precautions for rivet nuts

1. The S series pressure riveting nuts are made of free-cutting iron, which is treated after heat treatment. The CLS series pressure riveting nuts are made of easy-to-use free-cutting stainless steel, and the surface is not treated.

2. The hardness of low carbon steel plate must be less than that of stainless steel plate.

3. It is suitable for plates of various thicknesses, with a minimum thickness of 0.8mm. The tail number Z corresponding to size A must be determined according to the thickness of the plate and the specification of the nut. The user selects samples and orders according to the tail number in the table according to the thickness of the plate; 4. According to the size of the hole, it should be precisely controlled, and it should be processed according to the tolerance size of 0-+0. It is best to punch the hole. Generally, the nut should be installed from the "broken" surface of the plate. The installation process is generally achieved through "press riveting" operations, and must not be impacted and knocked in.

The rivet nut is small and powerful, and plays a huge role in all walks of life. Without this small component, our life would not be as convenient as it is now. Everyone should pay attention to the material problem when buying rivet nuts. The prices of different materials are different. For example, the last step of general rivet nuts needs to be electroplated, but stainless steel rivet nuts should not be plated. Generally, the rivet nut can be electroplated into a variety of colors, which mainly depends on the needs of the buyer.

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