ອະທິບາຍຂະບວນການ 'ການຜ່ອນຄາຍຄວາມຄຽດ' ສໍາລັບວົງກ້ຽວວຽນຂອງເຫຼັກກາກບອນ ແລະ ເປັນຫຍັງມັນຈຶ່ງສຳຄັນຕໍ່ຄວາມໝັ້ນຄົງຂອງມິຕິ.

After the cold-winding process, spiral retaining rings contain significant internal residual stresses. If left untreated, these stresses can cause the ring to 'warp' or change diameter over time, especially if exposed to heat. ການຜ່ອນຄາຍຄວາມຄຽດກ່ຽວຂ້ອງກັບການໃຫ້ຄວາມຮ້ອນຂອງວົງແຫວນປະມານ $650-750^{\circ}F$ ($340-400^{\circ}C$) ສໍາລັບໄລຍະເວລາສະເພາະ. This temperature is below the transformation range, so it doesn't affect the hardness but allows the internal dislocations to rearrange and the residual stresses to dissipate. ອັນນີ້ຮັບປະກັນວ່າແຫວນຮັກສາເສັ້ນຜ່າສູນກາງ 'cling-fit' ຂອງມັນແລະຍັງຄົງຮາບພຽງຢູ່. For precision assemblies like optical lens mounts, an improperly stress-relieved ring can introduce tilt into the lens over time as the ring 'settles' into its final shape.