Nylon ropes only appeared after the end of World War II, although climbers have begun to use ropes for protection a long time ago. The earliest climbing ropes were twisted into three or four strands of natural fibers such as hemp and then twisted together. These ropes have almost no ductility and low strength. They…
Rope treatment 1. Boiled rope: Boil the rope for 10-30 minutes. The boiled rope has the effect of removing some peculiar smell and disinfecting. 2. Waxing or oiling (optional): As an optional step, the melting point of this type of material is close to room temperature. Apply oil or wax to cotton gloves or thin…
Treatment of hemp rope The raw materials of hemp rope generally include jute, flax, sisal, etc., which can be woven from a variety of plant fibers and have a wide range of uses. Therefore, many industrial ropes have many impurities and are difficult to remove odors, which are not suitable. Hemp rope has different numbers…
What matters should the ship pay attention to when mooring the rope at the port? Working on board is not an easy task. You must always pay attention to safety and understand and master the working principles of various equipment and equipment. 1. Operators should wear appropriate work clothes, safety helmets, safety shoes, and goggles…
Why does the rope break happen? In fact, there have been too many ship rope-breaking dangers in many ports, which have also had a major impact on ship safety and port production. Analyzing the reasons for the ship’s rope break is nothing more than the external factors of the berth and the ship’s own factors.…
For special operations, the correct choice of rope type is the key to efficiently tie knots. In the process of handling disasters or emergencies, ropes and cables occupy an extremely important position in the entire rescue system. Almost every rescue requires ropes for auxiliary protection. But you know what? Due to the different materials of…
Climbing rope is a kind of sports equipment. There are three types: single rope, double rope and half rope. Single rope is by far the most common rope, mainly used for sports climbing and traditional rock climbing. Due to their insufficient strength, double ropes and half ropes are usually designed to be used in pairs.…
Super mooring rope tail makes sailing safer Since ancient times, marine navigation operations have never lacked the assistance and support of mooring rope. With the development of the times and the advancement of science and technology, the manufacturing technology and application fields of mooring rope are also constantly updated, and the quality requirements of mooring…
Rope inspection Visual inspection If the rope is inspected and found to have cuts or obvious wear, such rope must be scrapped because the strength of the entire rope is reduced. However, for double-braided ropes, because of the protection of the sheath, it is difficult to check the strength of the inner core, although the…
Common damage and treatment methods 1. Broken stock Cause: friction; sharp edges or surfaces. Treatment: You can remove the damaged part, re-snap (standard end-for-end splice) or replace the cable. 2. Squeeze Reason: The fiber piles up on the contact surface during radial load. Treatment: relax the cable and remove the squeeze. 3. Pick stocks Reason:…
Wear When inspecting the rope, check the inside and outside carefully. When either party wears out, the rope becomes noticeably weaker. As a general rule for braided ropes, when the rope abrasion caused by friction is ≥ 25% or the fiber is broken, it should no longer be used. For double braided ropes, 50% of…
Do you really understand your rope? 1. Choose according to the rigidity requirements of the rope Compared with traditional synthetic fibers, modern synthetic fibers have lower elastic elongation and higher modulus. Therefore, when considering cable extension performance, care should be taken to ensure that the selected product is compatible with the application field. Generally,…
Choosing a rope requires comprehensive consideration of various factors. For example: compare the specifications, usage, preference for specific colors, feel in the hand, etc. of the rope. It is precisely because of this complexity that it must be considered from many aspects in order to choose a truly suitable cable. Choose according to intensity needs…
The breaking strength of the rope will be lost after light. Although other properties such as abrasion resistance and flexibility will also be affected, it is not as significant as the breaking strength. The impact of light on the rope mainly depends on the light and time light intensity. The light intensity at low latitudes…
In actual use, the rope will be affected by various environmental loads such as light, humidity, temperature and chemicals. When the conditions of use, environmental conditions and duration of use change, important properties such as the breaking capacity and elongation of the rope will also change. 1. The influence of light on the rope The…
Macrame Rope: What is the difference between three-strand cotton rope and cored yarn? 1. The difference in appearance: Three-strand cotton rope: The delicate yarn is divided into three strands and twisted in the same direction. The tail of the three-strand thread can be divided into three strands, or all can be combed and scattered into…
Processing technology: ordinary thread and wax thread Normal line: the line without post-processing Wax thread: After the thread is made, it is processed at high temperature or soaked in wax. Common wire name The combination of these different angles will form a common wire on the market. Commonly used strands: 3 strands, 6 strands, 9…
When you start learning to knit, you will definitely be dizzy with various threads. Let’s take a look at the types of threads used for knitting. First classify them from different perspectives: Weaving process: strand and braid Strand: A thread formed by twisting two or more single yarns together. Braided thread: multiple single yarns or…
Check the climbing rope after each use. The best inspection tool is your hand. They can sensitively detect abnormalities on the climbing rope, such as a sudden flattening of a place, a feeling different in thickness from other places, or a particularly loose section. The rope must not pass directly through bolts, fixing points, umbrella straps,…
Do not step on the rope whether you are wearing socks or barefoot. Stepping on it will allow some invisible sand particles to penetrate into the rope, and slowly cut the rope skin or rope core fiber as it is used. In addition, you must be very careful not to step on the rope when…
