• #### Jiangmen floating dock factory: what is a dock?

2020-08-21 876

A long box shaped hydraulic structure built on the shore of a water area for repairing and shipbuilding is conventionally called a dock. The dock bottom is lower than the water surface, three sides are dock wall, connected with the shore, one side has dock mouth leading to water area, and has dock door. The dock was originally mainly used for repairing ships. With the development of large-scale ships, it is safer and more advantageous for ships of more than 100000 tons to be built in docks. Ther

• #### Why does a piece of iron sink while an iron boat doesn't?

2020-08-21 928

Buoyancy Law: the object immersed in the liquid is subject to upward buoyancy, and the buoyancy is equal to the gravity of the object to displace the liquid. In other words, f float = g row = m row g = ρ liquid GV row g row: gravity of draining liquid m row: discharging liquid mass ρ liquid: liquid density V row: volume of liquid discharged (i.e. volume immersed in liquid). If it is a solid iron block, it must sink. Because the ship's interior is empty, so the ship's displacement in the water wi

• #### Jiangmen fishing boat factory: what basic equipment does a fishing boat have?

2020-08-21 824

The main engine power of the power plant fishing boat is generally 1.5 ~ 4.5 kW / T, some as high as 6 ~ 7 kW. Large and medium-sized fishing vessels and fishing base vessels are equipped with freezing and processing equipment, and the engine power is 65% - 85% of the main engine power. In order to improve the efficiency of the main engine, the engine, capture winch, refrigeration device and air compressor are often driven by the main engine, which increases the complexity of the power plant. Th

• #### Jiangmen shipyard: basic framework structure of fishing vessels

2020-08-21 866

The basic framework structure of fishing vessels is the main framework structure of fishing vessels. The longitudinal skeleton plate has a long edge, a long length direction, a short edge width direction, and a small distance between longitudinal bones and a large distance between transverse girders. In the direction of long edge ship width and short edge length, the distance between transverse stiffeners is small and that of longitudinal girders is large. According to the strength and applicati

• #### How to maintain FRP fishing boats?

2020-08-21 927

FRP is a new shipbuilding material and an important part of modern material innovation. FRP has not been used in shipbuilding for a long time, but it has shown its strong vitality and broad development prospects. FRP ships include not only small boats, such as fishing boats, yachts, high-speed passenger ships, business boats, traffic boats, speedboats, lifeboats, painted boats, sailboats, sports boats, minesweepers, etc. Careful preservation and maintenance of fishing vessels can reduce the loss

• #### Jiangmen shipyard: common causes of hull corrosion

2020-08-21 937

1. Corrosion of the hull structure on the water, the part on the water of the hull mainly includes the deck, superstructure and freeboard. The above water parts of these ships are mainly affected by rain and snow, sea water spray and ocean atmosphere, and these factors are the important reasons for the severe corrosion of the hull on water. In the marine atmosphere, there are a lot of nitrogen compounds, which make the condensation water aggravate the damage to the hull structure. On the other h

• #### Jiangmen fishing boat building factory: what harm do marine attachments do to the ship

2020-08-21 1047

We know that the sea water has strong corrosivity to the ship, and the marine life has strong adhesion to the ship. After the ship is launched for a period of time, a lot of barnacles, algae and other marine organisms will be attached to the hull, and rust spots will appear. On the other hand, the presence of these warships increases the speed of the ship's flight and, on the other hand, increases the resistance of the ship's flight. Marine attached organisms refer to the animals, plants and mic

• #### Jiangmen fishing boat construction factory: which fishing boats should be distinguished from?

2020-08-21 967

Fishing vessels can be divided into marine fishing vessels and inland fishing vessels according to different working waters. (1) marine fishing vessels. Marine fishing boat is a kind of vessel used to capture aquatic economic animals and plants in the ocean. According to the operation mode, it can be divided into trawler, purse seine, tension net, fishing boat, gill net, etc. The requirements of seaworthiness of marine fishing vessels are high. In order to increase the time of marine operation,

• #### Jiangmen fishing boat factory: what is the gap between wooden fishing boat and steel fishing boat?

2020-08-21 921

According to the raw materials of fishing vessels, fishing vessels can be divided into steel fishing boats, wooden fishing boats, glass fiber reinforced plastic fishing boats, steel wood mixed fishing boats, steel mesh cement fishing boats and other raw materials fishing vessels. Next, we will first introduce the differences between wooden fishing boats and steel fishing boats. Wooden fishing boat is made of wood as the primary material. Compared with the fishing boat made of steel, there are ma

• #### Jiangmen shipyard: technological process of modern shipbuilding

2020-08-21 966

Ship Lofting linear lofting: the craft lofting and the machine (computer) lofting are divided into craft lofting and machine (computer) lofting. The craft lofting is generally 1:1 share. The sample platform needs to occupy a large area, which needs more manpower and material resources for shipbuilding, and is less selected. Machine lofting, also known as mathematical lofting, relies on advanced technical software to loft the hull, with high accuracy and no occupation of field And manpower, more