Introduction
High strength fastener thermal treatment technology is used extensively in industries which require parts that are subjected to extremely high levels of stress. Fastener thermal treatment technologies provide increased resistance to fatigue and increased resistance to corrosion, thus making the parts more reliable over prolonged use. The fastener thermal treatment technology consists of several processes, including heat treatment, case hardening, carburizing and nitriding. Each of these processes has its own advantages and disadvantages, but together they provide a high-strength and reliable solution for fastener applications. This article will discuss the different fastener thermal treatment technologies and how these processes are used to improve the performance of fasteners.
Heat Treatment
Heat treatment is often used to increase the hardness of fastener parts. During this process, the fastener is heated and cooled in an oven or other temperature-controlled chamber. This process, also known as tempering, alters the microstructure of the metal, which improves the strength, hardness and other properties of the material. Heat treating can also be used to alter the shape of certain parts and improve the surface finish.
Case Hardening
Case hardening is another process used to improve the performance of fastener parts. This process involves the introduction of controlled amounts of carbon and nitrogen into the material in order to create a hard case on the exterior of the fastener. This process has the advantage of increasing the strength and wear resistance of the fastener, while also providing additional corrosion resistance.
Carburizing
Carburizing is a process used to improve the properties of steel components. This process involves the introduction of oxygen and other gases in order to raise the carbon content of the steel. This increases the hardness and strength of the fastener and improves its wear resistance.
Nitriding
Nitriding is a specialized process used to improve the properties of fastener parts. During this process, atoms of nitrogen are introduced into the metals surface layer. This process increases the hardness and abrasion resistance of the fastener, while also providing additional corrosion resistance.
Conclusion
High strength fastener thermal treatment technologies are used extensively in the production of components which need to be subject to extremely high levels of stress. Heat treating, case hardening, carburizing and nitriding are the most commonly used processes, and each provides its own particular advantages and disadvantages. By using the correct combination of thermal treatments, it is possible to produce fasteners which are more reliable and require less maintenance over time.
