Analysis of dry goods of double-headed bolts

Bolt manufacturers must determine the equipment and machine tools for manufacturing double-head bolts. Naturally, the production and processing procedure may be relatively simple. The key is to pull out the material. The first step is to pull out the material. The material is to straighten the twisted material with a puller. Only after this process can the next process be completed. The next process is to use an automatic cutting machine to cut the straightened material into the length and length of the customer according to the user's regulations. This completes the second process. The third process is to put the cut short material on the wire rolling machine and roll out the wire port; here, the general double-head bolts are produced and processed, and naturally, if other regulations are required, there are also other processes.

The anchor bolts generally refer to screws with larger diameters. According to this view, screws have much smaller diameters relative to anchor bolts. Double-head bolts have no head top, and some are called double-head studs. The double-head bolts have external threads on both sides, with no external threads in the middle, and a light rod in the middle. Double-head bolts are used on large and medium-sized machinery and equipment, such as reducer frames.

In the specific use case, the external load will have vibration and the temperature will cause the sliding friction to decrease, and in the long run, the flange connection will be loose and ineffective.

Therefore, in normal processes, the maintenance of double-head bolts must be done well. Double-head bolts or anchor screws can have problems under the effect of long-term sliding friction of mechanical equipment. During the occurrence, the oil pan of the automobile engine must be disassembled and installed, carefully check the use of the automobile engine piston pin, and check whether the gap in the middle of the piston pin is too large. If the gap is too large, it needs to be replaced immediately. When replacing the double-head bolt, the crankshaft anchor bolts also need to be replaced. In the daily operation of some large and medium-sized machinery and equipment, such as nail making machines, if they find that the car engine is not running very smoothly or abnormal noise occurs, they also need to park and check immediately to prevent major problems.

In every maintenance, the newly replaced double-head bolts and other newly replaced accessories need to be inspected. During the inspection, the head and guiding part of the double-head bolt must be placed. It is also necessary to strictly check whether there are cracks or pits in each part of the external thread. It is also necessary to check the shape of the double-head bolts and whether there are any changes.

Whether there is any abnormality in the tooth distance, it is absolutely impossible to use it again if it is found. When installing the crankshaft cover, the special tool of torque wrench should be used. Tighten according to the specifications and specifications. The torque must not be too large or too small. You also need to pay attention to the selection of double-head bolts and double-head studs from supporting facilities manufacturers.