Reasons why burrs appear after blind rivets are drawn

Blind rivets, also known as pull rivets or rivets, are one of the rivet categories. They are used for single-sided riveting and are highly efficient. When using blind rivets, you must be equipped with a riveting tool rivet gun (pneumatic, electric, manual).

After the core blind rivet is riveted, the nail rod at the tail will break, and the breaking points will be flat. After the nail rod is broken, there will no longer be exposed for a long time, affecting the appearance of the nail shell surface. If there is a burr after the rivet rod breaks, , the phenomenon of the nail shaft being exposed and growing out of the nail shell is caused by several reasons:

1. The length of the blind rivet. The diameter of the rivet corresponds to the opening, and the length corresponds to the thickness of the riveting. If the thickness of the rivet is thin and the length of the rivet is too long, there will be burrs after riveting and the nail rod will be exposed.

2. The quality problem of blind rivets. It may be caused by the poor quality of rivets.

3. The power of the rivet gun used is too small. If the rivet is large and the power of the rivet gun is too small, then the rivet gun cannot break the blind rivet at one time. It has to be pulled 2 times, 3 times or more, which will lead to the breaking point. glitch.

During the use of blind rivets, the nail core does not fit into the rivet gun mouth?

Rivet guns are divided into pneumatic rivet guns, electric rivet guns, and manual rivet guns. Pneumatic rivet guns are also called pneumatic rivet guns, pneumatic rivet guns, and pneumatic blind rivet guns. They are called differently. They are currently the most advanced riveting tools in China. .

At present, pneumatic rivet guns are also divided into three types:

1. Pure pneumatic rivet gun, cheap but inconvenient to maintain!

2. Pneumatic and hydraulic rivet guns are more commonly used. This style of rivet gun is generally used in the world, which is convenient for maintenance!

3. Split-type pneumatic hydraulic rivet gun, fixed operation, large pulling force and fast speed

What is the reason why the blind rivet core breaks?

1. The pulling force of the nail core is unstable, the breakpoint force is too close to the pulling force of the nail core itself, or the heat treatment is not done properly, making the nail core brittle.

2. The nail core has been damaged before riveting.

3. The claws of the rivet gun are not adjusted properly and are not on the same plane, which exerts a shearing effect on the nail core.

4. The air pressure of the rivet gun is not enough and the claws are worn. The first pull has already caused damage to the nail core. The second time you pull it, it will break from the injured area.