The hook ring is also called the buckle ring, often called the main lock or the iron barium, is a freely open and closed metal ring, used to connect the climber and the main rope, protector, noose and rack on the rock to ensure the point of the tool, there are lock hook ring and no lock fishing ring, there are lock hook ring and manual lock hook ring and automatic lock hook ring.Hook And Loop
Most of the pull of the hook ring is expressed in kn (thousand newtons), usually ranging in size from 40kN to ten. A Newton is approximately equal to O. I kg of the pull, therefore, the hook-ring in the longitudinal force can effectively withstand the pull of 1000-4000 kg, but when the hook-ring transverse force, the tension will be reduced, the decline of about 1kN (100 kilograms) to 7KN (700 kilograms).Hook And Loop
Hook ring should be used to ensure that the hook-ring longitudinal force, especially the opening end of the blood pressure. Wire clasp hook ring in the fastening screws can make the lock locks in the closed state, to avoid the risk of inadvertent collision. Ordinary hook-and-loop without wire buckle device, light weight, easy to operate, can be used for temporary protection points, if the use of ordinary fishing ring for fixed protection, must follow the double hook ring and the use of the door to open the principle of the longitudinal tensile strength of the C hook-ring is greater than the transverse tensile force, the hook-and-loop door open, The hook-and-loop door is the weakest link and cannot be directly subjected to force. The correct use method is to keep the hook-and-loop door closed to the longitudinal force. Avoid a drop in the air or a hard object causing internal rifts to void the hook ring. Pioneer climbing and other possible crashes, the climber should directly connect the main rope and seat belt, can not use hook-and-loop as an intermediate link. Should use UIAA or CE-certified hook ring, do not use the unknown hook ring. The soiled hook ring can be dipped in the hub with solvents or lubricants, and then repeatedly switch the hook ring until the operation is smooth, then soak the ring into boiling water for about 20 seconds to remove the detergent.Hook And Loop
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