Zhoushan Jed Machinery Co.,Ltd

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Studs also known as double-headed screws tuds

Studs, also known as double-headed screws, studs. Mainly used to connect the mechanical fixed link function. The studs are threaded at both ends, and the middle screw is thick and thin. Generally used in mining machinery, automobiles, bridges, boiler steel structures, hanging towers and large buildings.

Bolts generally refer to larger diameter screws or heads, such as studs. Usually, it is not called “stud bolt” but is called “double stud”. The most common form of studs is threaded at both ends with a polished rod in the middle. The main purpose of the stud bolt is as follows:
1. For the main body is a large-scale equipment, accessories that need to be installed, such as: sight glass, mechanical seal seat, reduction frame, etc. At this time, the stud bolt is used, one end is screwed into the main body, and the other end is equipped with a nut after the attachment is installed. Since the attachment needs to be disassembled frequently, the thread will wear faster, and it is very convenient to replace the stud bolt.
2. When the thickness of the connecting body is large and the bolt length is very long, the stud bolt will be used at this time.
3, used to connect thick plates and inconvenient to use hexagonal bolts to connect, such as: concrete roof trusses, roof beam suspension monorail beam suspension parts.
The double-headed screw needs to be loosened. In actual work, the external load has vibration, change, high temperature creep of the material, etc., which will reduce the friction force. The positive pressure in the thread pair disappears at a certain moment, and the friction force is zero, thus loosening the thread connection. After repeated action, the threaded joint will relax and fail. Therefore, it is necessary to prevent loosening, otherwise it will affect normal work and cause an accident.
Studs save time and cost. All stud bolt construction eliminates the need for drilling, punching, threading, riveting, threading and finishing, extending the application potential of structural design, high current and small penetration . Therefore, it can be welded to a very thin plate. Stud-welded workpieces must be welded from one side. Can be welded in all positions, with the aid of the expander can be limited to the vertical partition. Since it is welded for a short time and is rarely deformed after welding, no trimming is required. Because the welded structure does not require drilling, it does not cause leakage. The joint can achieve very high strength, that is, the joint strength of the stud welding is greater than the strength of the stud itse

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