Using ships, we naturally know the anchor chain and the anchor chain. In order to have a reliable sailing experience, we also need to know some focused knowledge. At present, welded anchor chains have been widely used in commercial ships. Almost all anchor chains are made by flash welding, and cast anchor chains are rarely used. With the exception of most forgings in chain attachments, forged chain halves have largely been eliminated. So, what anchor chains and anchor chains should be equipped for seagoing ships?
Anchors and anchor chains for seagoing ships should be selected according to the size of the ship, based on the type of ship, the navigation area and the data listed in the regulations. Variable N (equipmenumber), or the number of ships, is a parameter that reflects the wind and flow forces on the hull.
Press n to select equipment such as cargo ships, bulk carriers, oil tankers, trailing suction dredgers, and ferries. Judging from the quantity of the assembly, the ship should be equipped with the number of anchors, the weight of each anchor, the level, total length and diameter of the anchor chain. If the ship should be equipped with the total number of sections of the anchor chain, the right anchor should be equipped with more sections. . Every 10,000-ton cargo ship has at least 10 anchor chains.
Generally speaking, ships in unlimited aviation areas should be equipped with 12 anchor chains for each main anchor. In addition, the ship should retain at least one anchor unloading buckle and four connecting unloading buckles or connecting chain links, and the other anchor chain should retain a large floating unloading buckle. AM1 grade chains with tensile stress less than 400n/mm2 cannot be used for large grab anchoring. AM3 grade chains are only suitable for anchor chains with a diameter of 20.5mm or above.
Types and models of anchors: Hall anchor, Spek anchor, Japanese rodless anchor, AC-14 large grip anchor, delta anchor, triangle anchor, navy anchor, navy anchor, Dan Fore anchoring, Danvers anchoring, Mahalanobis anchoring, single claw anchoring, four claw anchoring, positioning anchoring, Bell anchoring, Bol anchoring, MK3 anchoring, MK5 anchoring , MK6 anchor, navy anchor, pear anchor and other common marine anchor types. There are also marine engineering anchoring and fishery breeding anchoring.
The anchor chain is composed of many chain links, and its size is approximately the chain diameter (mm). Depending on whether there is a gear in the middle of the chain link, it can be divided into geared anchor chain and gearless anchor chain. Anchor chains can be made by forging, casting and welding. Marine anchor chain consists of several parts, each part is 25.0~27.5 meters in length, connected with chain links or shackles. After anchoring, the anchor chain is stored in the ship’s chain locker. Confirm the specifications of the anchor chain according to ship construction standards.
Nowadays, many technologies and techniques have been improved, and there are many specifications for marine anchor chains and anchor chain configurations. Chinese specifications and standards stipulate that Kent shackles are used to connect the joints of anchor chains with gears, and connecting shackles are used to connect the joints of anchor chains without gears. The enlarged link of the unstopped anchor chain is an unstopped link that is larger than the ordinary chain link.
Post time: Jul-27-2024