Importance Of Rubber Fender Quality And Safety

With the development of China's shipping industry, the demand for docks and marine fenders is increasing, and the requirements for fender performance are also becoming higher and higher. Among them, rubber fenders are most widely used due to their good toughness and impact resistance. At present, there are many manufacturers of rubber fenders in China, and the products are not the same. Some manufacturers have adopted low-price competition as the main means to survive in the fierce market competition. They do not strictly abide by relevant standards and processes, use low-quality raw materials, or use excessive regeneration Glue to reduce costs, which brings great hidden dangers to dock and ship berthing safety. Relevant experts said that rubber fender manufacturers should strictly implement relevant national standards, strict technological processes, strengthen independent innovation capabilities, continuously improve product quality, and provide reliable and safe products for China's shipping and shipbuilding industries.

It is understood that there are many types of rubber fenders currently on the market, mainly including buckling type, inflatable type, laterally loaded cylindrical type (drum type), butt V type (ie X type) and flexible pile type. When designing and producing rubber fenders, manufacturers must consider the reaction forces acting on the hull and the dock's berthing components, the magnitude of the deformation of the fender after absorbing the ship's kinetic energy, the deformation of the fender to produce the reaction force acting on the hull, the relative stiffness of the fender, Effectiveness of fender energy absorption during non-forward squeezing, the rate at which the fender slows the berthing speed of the ship, the coefficient of friction between the fender system and the hull, the capital investment of the fender system and support members and their maintenance costs, and the hull There are many factors such as the way of contact with the fender. Users can choose different types of rubber fenders according to the actual situation. Except for tugboats and small ships, large tonnage ships are generally not equipped with rubber fenders. When berthing, the inflatable rubber fenders are mainly used to protect the dock and hull.

Relative to the shipbuilding industry's marine main engines, shipboards and other ancillary markets, the market capacity of rubber fenders is not very large, and competition is fierce. And some manufacturers with more general-purpose products and thin profits can only adopt low-cost competition strategies, even at the expense of using low-quality materials or using a high proportion of recycled rubber to reduce costs. More areas are more common. Low-quality rubber fenders are extremely hazardous, not only short in service life, but also cause serious damage to the dock and berthing ships if damaged.