What are the advantages of double-ended bolts?

Double head bolts need surface treatment to effectively extend the service life of double head bolts and improve production efficiency.

Double head bolts need surface treatment to effectively extend the service life of double head bolts and improve production efficiency. High-strength double-headed bolts generally use the tempering blackening process, while ordinary double-headed bolts are cold galvanized, hot-dip galvanized, etc. Each processing method has its advantages. We will introduce them in a later article. According to the different surface treatment, studs can be divided into galvanized studs and blackened studs, Teflon studs and so on.
Double-headed studs specifically refer to screws with a larger diameter. They can also have no head. For example, bolts are usually not called “studs” but “studs”. Commonly used studs have two tightened ends and a light bar in the center. Typical use: footbolts, or places similar to footbolts, thicker connections, when ordinary bolts are not possible.

Application of double-headed bolts:
1, when the thickness of the connection body is very large, the length of the bolt is very long, will use double-headed bolts to prevent loosening: in practice, the vibration and change of the external load, the bolt's high temperature creep Material and so on will cause friction reduction. The positive pressure of thread alignment disappears at a certain point and the friction is zero, so the threaded connection becomes loose. If the operation is repeated, the threaded connection will loosen and fail. Therefore, it is necessary to prevent loosening, otherwise it will affect normal operation and cause accidents.
2、When the main body is a large equipment, it is necessary to install accessories such as observation mirror, mechanical seal seat, deceleration frame, etc. At this time, one end of the double-headed bolt used is screwed into the main body Body. After the accessories are installed, the other end is fitted with a nut. When removing the accessories, when the body and the accessories are directly bolted together Maintenance of double-headed bolts, with the passage of time, the body screws will be worn out or damaged, and it is very convenient to use double-headed bolts to replace them.
1. In practice, double-headed bolts will rub repeatedly, and the threaded connection may loosen and gradually lose its function. Therefore, it is necessary for the relevant personnel to maintain the double-headed bolts.
2, when the large equipment is running, its working condition should be observed at all times. Once there is abnormal noise and equipment instability, immediately stop running and start checking; During the maintenance of double-headed bolts, the relevant personnel need to carefully check the connection between the double-headed bolts and other accessories to avoid major problems.