What is the difference between the main keel and the angle steel and the channel steel?
The boat in the boat, the boat is keel or load-bearing structure is the most important. It's at the bottom of the ship. On the keel, there is reinforcement across the ship's ribs. The bow and stern keel off the bow post. The keel is usually the first one to be part of the hull construction. The keel laying is the most important event in the shipbuilding process.
Channel steel is a kind of carbon structural steel used for construction and machinery. It is a complex section steel. Its cross section has a groove shape. Channel steel is mainly used in building structure, curtain wall engineering, mechanical equipment and vehicle manufacturing, etc.. In use, it requires better welding, riveting performance and comprehensive mechanical properties. The raw material steel billet for channel steel is carbon or low alloy steel billets with a carbon content of not more than 0.25%. The finished channel steel is delivered by hot forming, normalizing or hot rolling. The specifications are expressed in millimeters of height (H) * leg width (b) * waist thickness (d), such as 100*48*5.3, which means waist height is 100 mm, leg width is 48 mm, waist thickness is 5.3 mm channel, or 10# channel steel. The same height of the channel, if there are several different leg width and waist thickness, also need to add a, B, C on the right side of the model to distinguish, such as 25#a, 25#b, 25#c and so on.
Light steel keel is a kind of new building materials, with the development of China's modernization, have been widely used in hotels, airport lounges, passenger stations, stations, theaters, shopping malls, factories, office buildings, building renovation, interior decoration, ceiling set of old buildings and other places. Light steel (paint) keel ceiling has light weight, high strength, adapt to waterproof, shock, dust, sound insulation, sound absorption, constant temperature and other effects, but also has the advantages of short construction period, simple construction and so on.
Light steel keel is made of high-quality continuous hot-dip galvanized sheet and used as raw material and rolled by cold bending technology. It is used for decorative design of non load bearing wall and building roof with plasterboard, decorative gypsum board and other lightweight board. The utility model is suitable for the decoration of the roof of various buildings, the internal and external wall of the building and the basic material of the trellis suspended ceiling. According to the use of ceiling keel and partition keel, in accordance with the form of section V, C, T, L keel. Ceiling keel is divided into: the main keel and vice keel. The main keel is the weight of the weight of the suspended ceiling.
In addition to bearing, the keel also has a hydrodynamic role. The utility model enlarges the side area of the ship, improves the parallel impedance of the ship in water, and prevents the crosswind steering. This is especially important for sailing against the wind. In sailing, the keel is supported by a diagonal brace in the middle or at the base of the frame.
