What is the difference between the main keel and the angle steel and the channel steel?
Channel steel is a strip of steel with a cross section. Section steel with groove shape.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.
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.
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.
