Introduction of types and functions of fasteners

     FastenersIt is a kind of mechanical parts used for fastening connection and widely used. In fact, it is also very common in our lives. It is also needed in many places. So it is also widely used mechanical basic parts. Below for everyone to introduce the type and function of fasteners.

Fasteners are characterized by a wide variety of specifications, different performance uses, of course, when in use, we need to understand the basic information is also more. For example, the degree of standardization, serialization and generalization is also high. Therefore, there are also people who have national standards for a class of fasteners called standard fasteners. Fasteners in our country, usually said that the standard is the abbreviation of the standard fastener, so of course it is also a narrow concept, but can not rule out the existence of a broad concept. In fact, the product is also forged at a temperature higher than the recrystallization temperature of the metal. Increasing the temperature can improve the plasticity of the metal. With fasteners, it will help improve the internal quality of the workpiece and make it less prone to cracking. This is also its main feature. Other than that. High temperature can also reduce the deformation resistance of the metal, and then it will also reduce the demand for forging equipment. However, the hot forging process, the workpiece accuracy is poor, the surface is rough, then at this time it will be easy to make fasteners oxidation, decarburization, burning. Therefore, everyone should pay attention to it when using it in the future.

The common product of fasteners is the familiar bolt. It is mainly a kind of fastener composed of two parts: head and screw (cylinder with external thread). The structure is really very simple. Of course, when in use, it is generally necessary to cooperate with the nut for fastening and connecting two parts with through holes. And its connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated at this time, so the bolt connection is a detachable connection. In addition, there are common fasteners that are what we call screws. In fact, it is also a type of fastener composed of two parts: the head and the screw, but its types are also relatively large. If by purpose can be divided into three categories of machines, tight and special purpose. This kind of fastener is mainly used for the fastening connection between a part with a threaded hole and a part with a through hole. In fact, it does not need a nut to cooperate when in use. In fact, fasteners are also applied with oil on the surface of fasteners, which can reduce friction and increase preload under the same torque. In other words, to achieve the same tightening effect, the torque required for the oiled bolt is smaller.

After the introduction of the above contents, I believe everyone knowsFastenersThe type and role of the introduction. After reading the content of the article, if you encounter such a thing, you will know where to choose. I hope it can help you.