Basic knowledge and maintenance of stud bolts

Update time:04 Jan 2020
abstract:

The production of studs requires fixed equipment and ma […]

The production of studs requires fixed equipment and machine tool processing. Of course, the processing procedure is relatively simple. The main steps are as follows: first, the material needs to be drawn. After this process, the next process can be performed. The next process is to use a cutting machine to cut the straight long material into the length required by the customer. This completes the second process. The third process is Put the cut short material on the thread rolling machine to roll out the thread fastener; here the ordinary stud bolts are processed. Of course, if other requirements are required, other procedures are needed.
Generally known bolts refer to screws with a relatively large diameter. According to this statement, screws have a much smaller diameter than bolts. Stud bolts have no head, and some are called stud bolts. The stud bolts are threaded at both ends, without threads in the middle, and polished rods in the middle. Studs are used on large equipment such as reduction gears. In actual application, the external load will be subject to vibration and the effect of temperature will cause the friction to become smaller, and the screw connection will loosen and fail over time. Therefore, the maintenance work of the stud bolts needs to be done in normal times. Stud bolts or anchor bolts can cause problems under the action of long-term mechanical friction. When the problem occurs, the engine oil pan must be removed. Carefully check the use of the engine bushings, and check the gap between the bushes. If it is too large, it should be replaced in time if the gap is too large. Replace the connecting rod bolts when replacing the stud bolts. If some large-scale equipment such as nail making machine is running normally, if it is found that the engine is not running stably or abnormal noise occurs, it should be stopped and inspected in time to avoid bigger problems.
During each repair, the newly replaced stud bolts and other newly replaced accessories must be inspected. During the inspection, the head and guide parts of the stud bolts must be focused on, and each part of the thread must be checked strictly. There are no cracks or dents. Also check whether the tooth shape of the stud bolt has changed. If there is any abnormality in the pitch, if there is an abnormal situation, it cannot be used any more. A torque wrench should be used when installing the connecting rod cover. It must be tightened in accordance with the prescribed standards. The torque should not be too large or too small. Also pay attention to selecting the studs and studs of the supporting manufacturers.

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