Introduction to Stud Bolts Stud bolts save time and cost. The structure of all stud bolts does not require drilling, punching, threading, riveting, screwing and finishing steps, and continuously expands the application potential of structural design, high current and comparison Small penetration.
Therefore, it can be welded to very thin plates. The workpiece for stud welding must be welded from one side. It can be welded in all positions and can be restricted by means of an extender on a vertical partition.
Since it is welded in a short time and there is little deformation after welding, no trimming is required. Because the welded structure does not require drilling, it will not cause leakage. The joint can reach very high strength, that is, the joint strength of stud welding is greater than the strength of the stud itself.
How to install stud bolts is economical. The advantage of other welding methods lies in the welding power. For mass-produced workpieces, standard studs are low-cost.
There are many types of equipment and welding guns, and the purchase cost of equipment is relatively low. According to the product, it can be made into a multi-station automatic welding machine, or a high-precision gantry CNC automatic welding machine.
Stud welding has a higher quality reproduction rate and a lower rejection rate. However, in the application of stud welding, attention should be paid to other fusion welding, which has certain restrictions on the carbon content in steel. For structural steel studs, weld according to the weldability of the recommended stud material and base metal combination, otherwise the stud There will be infusibility with the base metal.
The combination of stud materials and base materials outside the recommended range shall be tested to determine the weldability and the product design requirements of anchor bolts for relevant inspection and evaluation possibilities.
Bolts specifically refer to screws with a larger diameter, and they can also have no heads, such as stud bolts. Generally, it is not called a "stud bolt" but a "double stud". The most commonly used form of double-ended studs has threads at both ends and a polished rod in the middle.
The most typical use: anchor bolts, or places similar to anchor bolts, thick connections, when ordinary bolts cannot be achieved.
Main purpose of stud bolts
1. It is used in large-scale equipment that requires installation accessories, such as sight glasses, mechanical seal seats, and deceleration racks.
At this time, stud bolts are used, one end is screwed into the main body, and the other end is fitted with a nut after the attachment is installed. Since the attachment is often removed, the thread will be worn or damaged. It is very convenient to use the stud replacement.
2. When the thickness of the connecting body is large and the bolt length is very long, stud bolts will be used.
3. It is used to connect thick plates and places where it is inconvenient to use hexagonal bolts, such as concrete roof truss, roof beam suspension monorail beam suspension, etc.
Anti-loosening purpose of stud bolts
In actual work, external loads such as vibration, change, and high-temperature creep of the material will reduce the friction. The positive pressure in the thread pair disappears at a certain moment and the friction is zero, which makes the thread connection loose.
If repeated action, the threaded connection will loosen and fail. Therefore, it is necessary to prevent loosening, otherwise it will affect normal work and cause accidents.