Chain and rope

In very many areas of its activity a person enjoys a variety of fixtures, for example a chain or rope. For a variety of purposes use different types of such devices. And if you're going to use something of this kind, then you need to know what type, what strength, what thickness is better to use the lock. Let's start with the most common type of lock - cable. If otdifinirovat rope is very primitive, it is a steel rope. There are several types of cables. Each type is used in a certain field of activity for something else simply not appropriate. In many cases, the correct choice of cable depends very much - in some cases - even human life. Therefore, the approach to the selection of the device must be very serious. The first type of rope - a wire rope for stretching. In building such a community cable called DIN 3055. To say why such a strange name given to this rope builders I can not, and they do not quite understand why DIN 3055. These cables can withstand the weight of the gap to 15.5 tons. Use this cable to connect the two bodies, which naturally move in different directions, that is - a mutual fixation. Power characteristics of such cables must be very impressive, as the weight pulls the two sides, which is twice enhances traction on the rope. Known to very many cases where, after a wrong choice and, accordingly, the gap of the cable people are suffering. Therefore, choose a discontinuous line for stretching must be very careful. The second type of rope - the rope, the type that used for insulation of PVC. The diameters of these cables is very small and they are almost always used as in the case of PVC. Tearing the weight of the cable is not more than 1.5 tons, but such goods on him to hang it is not necessary. Criteria for selection of cable for such purposes are much more loyal than in the first case, because very rarely on the wrong choice is something terrible and irreparable. Chain previously also divided into two subspecies - cargo and for stretching. But now cable is completely replaced by a chain in the case of stretching, and now we're with you can use the chains almost exclusively for operations with goods. Loading chains are used very frequently and effectively in those situations in which it is impossible to use the rope. Such situations quite a lot. To cite just one example - fault and uplift anchor on the ship. Until now, when you perform these operations using the chain. This is done to ensure that the anchor was falling at a slower rate, and the mechanism that raises the anchor, this was due to less load hooks specially sharpened chain links. In general, the cable today in almost all situations, replacing the chain.