The old master teaches you to distinguish the quality of rivets at a glance
Generally speaking, to judge the quality of a rivet, you only need to look at the cap, shank and cut to quickly identify the quality of a rivet. First of all, look at the hat. The hat with high-quality rivets is generally very well-proportioned, which gives you a very comfortable visual feeling. Just looking at it is not enough, you need to rub the rivet cap on the table. The peeling of the coating and the discoloration of the head are all inferior rivets. These rivets are often very resistant to rust and have a very short service life. After looking at the hat, let's look at the shank. The shank is also very particular. Not only must it look straight and regular, but also whether there are scratches on it. The scratches clearly indicate that the machine parts were not assembled properly during production. This kind of rivet It is not only unattractive, but also affects the use effect. The more important thing to look at the nail rod is to see if it is concentric. The nail rod must be located in the center of the nail cap, so that it will not be riveted or riveted when riveting. Although the incision looks similar, there is also a lot of knowledge in it. When we look at the incision, we first check whether it is flat. If the incision is severely uneven, it will obviously affect the riveting effect, and it is very easy to riveting deformation. It is not enough to check whether the incision is flat. For semi-hollow For rivets, follow the cut to see if the wall thickness inside is even. If one side is too thick and the other is too thin, it will be difficult to rivet. This point must be paid attention to. Looking at a rivet is like looking at a person, and often some details Only in this way can we really see whether a rivet is good or bad!
