In the machinery manufacturing industry, a large number of bolt parts need to be applied. Bolt parts are divided into corresponding 10 grades according to their basic properties and performance. Among them, bolt parts with a performance level greater than 8.8 are called high. Strength bolts. High-strength bolts have higher strength and surface hardness, and can be widely used in metal smelting and machinery manufacturing industries. We should fully study the material selection and processing technology of high-strength bolts to ensure that high-strength bolts can meet the requirements of related industries. Demand, so as to enable products in various industries to carry out effective quality assurance, improve product safety and practicability, and then improve the economic and social benefits of related industries.

The tensile strength of a bolt refers to the maximum tensile force that the bolt can withstand before being broken in the axial direction. It is the critical value for the transition from uniform plastic deformation to locally concentrated plastic deformation, and it is also the maximum load under static tensile ability. The yield strength of a bolt refers to the phenomenon that the stress does not increase or fluctuates within a small range during the tensile test of the bolt, but the phenomenon of rapid increase in strain occurs.

Fastener is the most common type of standard parts in mechanical products due to its variety, specification, large usage and wide application. The reasonable selection of fasteners has also become an important link in the process of product design. Whether the fasteners are used correctly or not is directly related to the functional realization and safe operation of the product. Compared with general fasteners, high-strength fasteners have different requirements in product design, manufacturing, assembly, inspection and maintenance, and play a more critical role in the operation of equipment. With the development of mechanical products to large-scale, automatic, intelligent and other diversified situations, the use of high-strength fasteners as key functional parts is increasing, especially in key occasions and important parts. At present, there are still some problems in the selection and use of high-strength fasteners, such as different opinions and insufficient understanding. It is necessary to do further research work. This paper mainly discusses the use methods of high-strength fasteners for mechanical products, and does not discuss the use of high-strength fasteners instead of general fasteners.

The main purpose of surface treatment is aesthetics and corrosion protection. Because the main function of the fastener is to fasten parts, and the surface treatment also has a great impact on its fastening performance. Therefore, when selecting the surface treatment process, factors such as the torque and consistency of the pre-tightening force of the fastener must be considered.

What is the manufacturing process of heavy hexagon bolts? How to remove heavy hexagon bolts? Let's take a look at the manufacturing and dismantling methods of heavy hexagon bolts. I hope to help everyone.

Hex bolts are bolt fittings commonly found in fasteners and play a large role in the imprisonment of parts. Today, the editor will talk about the blackening process and anti-rust method of the hexagonal bolts. I hope to help everyone. The details are as follows.