What are double end threaded bolt？
Stud bolts are also called stud screws or studs. They are used to connect mechanical fixed links. Both ends of the stud bolts have threads. The screw in the middle can be thick or thin. They are generally used in mining machinery, bridges, cars, motorcycles, boiler steel structures, cranes, large-span steel structures and large buildings.
In actual work, external loads such as vibration, change, and high-temperature creep of materials will cause friction to decrease. The positive pressure in the thread pair disappears at a certain moment, and the friction is zero, which makes the threaded connection loose. If it is repeatedly used, the threaded connection will loosen and fail. Therefore, anti-loosening must be carried out, otherwise it will affect normal work and cause accidents.
How to maintain double end threaded screw？
The production of double end threaded stud bolts requires fixed equipment and machine processing. Of course, the processing procedure is relatively simple, and there are mainly the following steps: first, the material needs to be pulled out. Pulling out the material is to use a puller to straighten the distorted material. Only after this process can the next process be carried out. The next process is to use a cutting machine to cut the straightened very long material into the length required by the customer according to the customer’s requirements. This completes the second process. The third process is to put the cut short material on the thread rolling machine to roll out the thread. At this point, the ordinary stud bolts are processed. Of course, if other requirements are required, other processes are required.
Generally known bolts refer to screws with larger diameters. According to this statement, screws are much smaller in diameter than bolts. double-end threaded stud have no head, and some are called studs. double-end threaded rods are threaded, but the middle does not contain threads, and the middle is a bare rod. double end threaded bar are used on large equipment such as reducer racks. In actual use, the external load will vibrate and the influence of temperature will cause the friction to decrease. Over time, the threaded connection will loosen and fail. Therefore, it is necessary to do a good job of maintaining stud bolts in normal times. double end threaded bolts will have problems under the action of long-term mechanical friction. When problems occur, the engine oil pan must be removed, and the use of the engine bearings must be carefully checked to check whether the gap between the bearings is too large. If the gap is too large, it must be replaced in time. When replacing stud bolts, the connecting rod bolts must also be replaced. Some large equipment such as nail making machines should be stopped and checked in time if the engine is not running very stably or abnormal noise occurs during normal operation to avoid greater problems.
During each maintenance, the newly replaced studs and other newly replaced accessories should be inspected. The focus of the inspection should be on the head and guide part of the studs. Each part of the thread should be strictly checked for cracks or dents.double threaded end fastener should also be checked to see if there are any changes. Check if there are any abnormalities in the pitch. If there are any abnormalities, they should not be used again. When installing the connecting rod cover, a torque wrench should be used. It must be tightened according to the specified standards. The torque should not be too large or too small. It is also necessary to pay attention to the selection of studs and studs from the matching manufacturer.
Post time: Jul-09-2024