Vääntömomenttiavain

Vääntömomenttiavain, also known as a torque wrench, is a tool used to apply a specific rotational force, or torque, to a fastener such as a nut or bolt. This precise application of force is critical in many mechanical and engineering applications where over-tightening or under-tightening can lead to component failure, damage, or improper assembly.

There are several types of torque wrenches, each with its own mechanism for indicating or controlling torque. Common types include click-type wrenches, which emit an audible and tactile click when the preset torque is reached, beam-type wrenches that use a deflection indicator, and digital torque wrenches that display the torque value electronically. Some advanced digital models can also record torque data and provide feedback.

The use of a torque wrench ensures that fasteners are tightened to the manufacturer's specifications. This is especially important in industries like automotive, aerospace, and manufacturing where precise assembly is paramount for safety and performance. For example, in an automobile engine, specific bolts must be tightened to exact torque values to ensure proper sealing and prevent damage to delicate components.

Calibration of torque wrenches is essential for maintaining accuracy. Over time, these tools can lose their calibration, leading to incorrect torque application. Regular calibration by a qualified service ensures the wrench continues to function as intended, providing reliable and accurate torque measurements. Proper storage and handling also contribute to the longevity and accuracy of a torque wrench.