Release time：2020-01-16 18:44 Browse：
In daily life and industrial production, lengthening screws, as a special fastener, are widely used in many fields such as mechanical equipment, building structures, and automobile manufacturing because of their ability to achieve deeper connection depth in a limited space. However, the installation of the extension screw is not a simple screw in and out, which requires the operator to have a certain professional knowledge and meticulous operation skills. This article will elaborate the precautions for the installation of lengthening screws from three aspects: thread alignment, avoiding excessive rotation, and choosing the right tool, so as to ensure the installation quality and use safety.
1. Pay attention to whether the threads are aligned during installation
Thread alignment is the first step in the installation of lengthening screws and is also the basis for ensuring the stability of the connection. Before installation, it is necessary to carefully check whether the screw hole matches the screw thread to ensure that the two can be smoothly connected. Once you find that the thread does not match or there is damage, you should immediately replace the appropriate screw or repair the screw hole.
When installing, the screw should be slowly screwed into the hole, while observing and confirming whether the thread is evenly stressed and smoothly fed. If the screw rotation is blocked or there is an abnormal sound, stop the operation immediately and check whether there is foreign matter blocked or thread dislocation. For occasions where pre-tightening is required, special tools such as torque wrenches should be used to operate according to the prescribed pre-tightening torque, and to avoid tightening arbitrarily by feeling or experience, so as not to damage the thread or affect the connection effect.
2. Avoid screw damage caused by excessive rotation
Excessive rotation of the screw is one of the common problems in the installation process, it will not only damage the thread, lead to loosening or even failure of the connection, but also may cause irreversible damage to the equipment or structure. Therefore, when installing the extension screw, the number of rotation circles must be strictly controlled to avoid excessive tightening.
In order to avoid excessive rotation, the operator should be familiar with the material, specifications and recommended tightening torque of the screws used. For important or critical connection parts, it is recommended to perform a torque test before installation to determine the appropriate tightening torque range. In actual operation, the appropriate tool (such as torque wrench) should be used to tighten, and the tightening force should be adjusted according to the actual situation to ensure that the screw reaches the specified pre-tightening state without excessive rotation.
In addition, you should also pay attention to the rotation of the screw, once you find that the rotation resistance suddenly increases or abnormal sound, you should immediately stop the operation and check the cause. If it is confirmed that the screw has been tightened in place, avoid continuing to apply torque to avoid damaging the thread or causing other adverse consequences.
3, choose the right tool for installation
Choosing the right tool is the key to ensure the quality of the extension screw installation. Different types of extension screws may require different mounting tools, such as wrenches, screwdrivers, torque wrenches, etc. In the selection of tools, should be based on screw specifications, materials and installation environment and other factors for comprehensive consideration.
For occasions where precise control of tightening torque is required, special tools such as torque wrenches should be preferred. These tools can accurately set and display tightening torque values, helping the operator achieve precise control. At the same time, attention should also be paid to keeping the tools clean and in good condition to avoid affecting the installation quality due to damage or wear of the tools.
In addition, pay attention to safe operation during the installation process. Wear protective equipment (such as gloves and goggles) to avoid hand or eye injury. At the same time, ensure that the installation environment is clean and orderly to avoid debris interference or tripping and other accidents.
### Conclusion
The installation of extension screws is a seemingly simple but complex work. Only by fully recognizing its importance and complexity, and operating in strict accordance with the operating procedures, can we ensure the quality of installation and safety of use. It is hoped that through the introduction and elaboration of this article, it can help the majority of operators to better grasp the installation skills and precautions of lengthening screws, and contribute their own strength to the stable connection of various equipment and structures.
# Lengthening screws # Lengthening bolts # Lengthening outer hex screws # Lengthening inner hex screws # fasteners
