brushed rivets

The wire drawing rivet, also known as the cup type blind rivet, belongs to the structural self-pulling rivet. After the rivet is pulled, the broken part of the mandrel will be transferred to the groove of the rivet body to lock the mandrel.

On the surface, there is little difference between the inner locking rivet and the outer locking rivet, and the mechanical properties are roughly the same, mainly because the locking structure after riveting is different. In general, the inner locking rivet can be used with a conventional rivet gun. The outer lock wire drawing rivet needs to be matched with the corresponding rivet gun. What is the difference between the use of the inner lock rivet and the outer lock rivet?

A. The outer lock wire drawing rivet has a step slightly larger than the inner hole at the brim of the cap. After the rivet is fully expanded, there is a circle of material on the upper part of the breaking point of the mandrel. Under the top pressure of the boss of the rivet gun mouth, it is turned over and filled in the step. , has a locking effect.

b. The diameter of the inner wall of the brim of the inner locking wire drawing rivet is slightly smaller than the inner diameter of the rivet tube. After the rivet is fully expanded, the water chestnut material with a slightly smaller inner diameter will squeeze into a groove at the lower part of the core breaking point to play a locking role.

Drawing product features: double locking function, certain tightness, high tensile shear strength. Application fields: automobile, ship, electrical, container, machinery, construction, electronics, aviation industry and other fields. Pull rivet is also called cup-shaped Self-pulling rivet. It is a structural self-pulling rivet, which is divided into inner lock and outer lock. The main materials are all stainless steel pull rivets, all aluminum pull rivets, all iron pull rivets. The main dimensions are 2.4mm, 3.0mm, 3.2mm , 4.0mm, 4.8mm, 5.0mm, the types are flat head and countersunk head. The wire drawing rivet has good hole filling performance, good air tightness and high riveting strength;