​1. Due to the material of the bolt, if the material we choose is better, then the quality of our bolt will be better. If we choose poor materials, then our bolts will break to a certain extent. 2. The strength of the bolt is not high enough. If the pressure on the bolt is greater than the strength of the bolt, the bolt will easily break. Therefore, when we use bolts, it is best to know how strong the bolt can withstand, so that we can choose a bolt higher than this strength, and the possibility of bolt breakage will be much reduced. 3. As a result of unqualified manufacturing, many bolts will be produced unqualified, so there is no way to display the quality of standard bolts, which will lead to bolt fracture to a certain extent. After we produce the bolts, we must go through testing, so that we can guarantee that the bolts are qualified before being sold. This is also the most basic guarantee for consumers. 4. Due to the fatigue strength of the bolt. The most common factor for bolts to break is due to the fatigue strength of the bolts. There is no problem when we use the bolts at the beginning, but after the work of the object, there may be a certain amount of looseness. If the work is loosened, the fatigue strength of the bolt will increase. When the bolt is reached, the fatigue strength of the bolt will increase. The limit of the bearing range, then the bolt will also break.

Hydrogen embrittlement fracture of bolts is a common form of failure. Because hydrogen embrittlement fracture is delayed and concealed, the damage it brings is much greater than the damage caused by other fractures. Since this century, hydrogen embrittlement fractures of alloy steel bolts have been commonplace, seriously hindering the normal development order of aerospace models, and have reached the level of "talking about hydrogen discoloration". In order to enable more scientific and technical personnel to understand the mechanism of hydrogen embrittlement, grasp the law of hydrogen embrittlement of bolts, and effectively prevent the occurrence of hydrogen embrittlement of bolts, the results of these studies are now written and introduced for readers' reference.

Hydrogen embrittlement fracture of bolts is a common form of failure. Because hydrogen embrittlement fracture is delayed and concealed, the damage it brings is much greater than the damage caused by other fractures. Since this century, hydrogen embrittlement fractures of alloy steel bolts have been commonplace, seriously hindering the normal development order of aerospace models, and have reached the level of "talking about hydrogen discoloration". In order to enable more scientific and technical personnel to understand the mechanism of hydrogen embrittlement, grasp the law of hydrogen embrittlement of bolts, and effectively prevent the occurrence of hydrogen embrittlement of bolts, the results of these studies are now written and introduced for readers' reference.

Hydrogen embrittlement fracture of bolts is a common form of failure. Because hydrogen embrittlement fracture is delayed and concealed, the damage it brings is much greater than the damage caused by other fractures. Since this century, hydrogen embrittlement fractures of alloy steel bolts have been commonplace, seriously hindering the normal development order of aerospace models, and have reached the level of "talking about hydrogen discoloration". In order to enable more scientific and technical personnel to understand the mechanism of hydrogen embrittlement, grasp the law of hydrogen embrittlement of bolts, and effectively prevent the occurrence of hydrogen embrittlement of bolts, the results of these studies are now written and introduced for readers' reference.

Titanium alloy fasteners are widely used in aerospace because of their low density, high specific strength and corrosion resistance. The development status of titanium alloy materials for aviation fasteners is reviewed. Combined with the development of titanium alloy for fasteners, the application status of titanium alloy for fasteners at home and abroad is introduced, and the performance characteristics of titanium alloy materials for fasteners are compared and analyzed. At the same time, combined with the requirements of advanced aircraft for high-performance fasteners, several high-strength and toughness titanium alloy materials for fasteners and their fastener processing technology are introduced.

Fastener is a kind of mechanical part which is widely used for fastening connection. It is widely used in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies. It is the most widely used mechanical foundation. It is characterized by a wide variety of specifications, different performance uses, and standardization, seriation, generalization of the degree is also very high. Therefore, some people also call a kind of fastener with existing national standards as standard fastener, or referred to as standard fastener for short.

High tensile bolts can withstand larger loads than ordinary bolts of the same specification. The material of ordinary bolts is made of Q235 (A3). The material of high-strength bolt 35 # steel or other high-quality materials is heat treated after being made to improve the strength. So what is the difference between high tensile bolts and ordinary bolts? Let ‘s take a look together.

How to control the accuracy of anchor bolts? What does the anchor bolt do? Let ’s take a look at the control principle and role of anchor bolts together.

Now that metric flange bolts are listed on the fastener market, they are very popular with consumers. So what are the advantages of metric flange bolts over other bolts? Let's take a look at the advantages of metric flange bolts together.

Anchor bolts are mainly used for fixed installation of equipment. It plays a big role in the installation of the equipment. The following are the reasons for the corrosion of the anchor bolts and the solutions to the installation problems. I hope it will be helpful to everyone.