[Flange Management] 쉬운이해 Bolt Tightening vs Torquing vs Tensioning (볼트 타이팅 vs 토킹 vs 텐셔닝) Calibration

Torquing is the most commonly used way to achieve fastener preload with bolted joints. Torquing produces this load through rotational force on a nut or bolt head. This torque is usually measured in foot-pounds (ft-lbs.) or Newton-meters (Nm).
Whether the bolt torque is achieved through the use of a manual “clicker” torque wrench, pistol grip torque wrench, or a hydraulic torque wrench, it is the most simple method of achieving axial load.
The big advantage to torquing is that is typically more cost-effective than tensioning.
However, the skill levels and training of those who use the torque tools equipment are determinants of how successful and accurate torque tightening will be.
The Difference Between Torque & Tension
Torque is the measurement of the force that causes something to rotate, for example, the turning force needed to spin a nut around the threads of a bolt.
Tension is the stretch or elongation of a bolt that provides the clamping force of a joint.
Bolt torquing and bolt tensioning are both widely accepted ways to seal a joint. Each has different advantages and disadvantages and suits different types of application.
Torquing and Hydraulic Torque Wrenches
A Torque wrench works by applying the principle of Newton’s law. This states that for every applied force there is an equal and opposite reactive force.