The rubber fender will affect the safety of the wharf and the ship's pilot berthing, and affect the scheduling of production ships. This paper introduces the placement, use, and manufacture of rubber fenders.
What Are The Production Quality Requirements For Rubber Fenders
During the molding of rubber fender products, the cohesive force of the elastomer cannot be removed after being pressed with a large pressure, and there is an unstable trend during molding (the shrinkage rate of rubber depends on the type of rubber).
Therefore, when designing rubber products, both the formula and the mold should carefully calculate the mixing quality, otherwise, the product size may be unstable, thus reducing product quality problems.
When designing and producing rubber fenders, the rubber fender manufacturers shall consider the reaction force acting on the hull and the port berthing position, the deformation of rubber fenders after absorbing the ship's kinetic energy, and the reaction force acting on the hull.
Which Marine Rubber Fender Material To Choose
Filler Material
Generally, rubber fender enterprises use polyester cord fabric for filling, but the tensile and elastic properties of polyester are not as good as nylon, so nylon with high elastic properties is selected for a better fender.
Nylon is mainly used in two kinds of airbags and fenders, 126D2 and 126D3. These two kinds of cord fabrics are well made and have a very long service life.
How To Place Rubber Fenders
The spacing and elevation of marine rubber fenders are very important. It is necessary to ensure that the ship can not directly touch the quay wall under the most unlucky berthing sight point allowed by the standard. It is also necessary to ensure that the ship can safely berth at different tide levels and draughts, and has strong adaptability to ships of different tonnage. Fender is an energy-absorbing device for ship berthing stability. Due to the effect of wind, wave, and current, as well as the difference between wharf azimuth, and the influence of high and long period wavelet waves on the harbor basin, a large amount of energy can occur when a ship collides with a dolphin, which requires that the fender has a good energy absorption characteristics.
How To Use The Combined Rubber Fender
The combined use method of the rubber fender aims to overcome the shortcomings of the prior art and provide a rubber fender that can be used in combination.
Even if a single fender can not meet the needs of large ships, several fenders can be combined into a longer fender to meet the needs of a longer fender.
The rubber fender is a cylindrical ring, which is characterized by a plurality of projections on one end face of the rubber fender and a plurality of grooves on the other end face. The number of pins and slots is the same. The shape of the pin and groove is the same, both are cylindrical. The positions of the protrusions and grooves on the end face correspond to each other. The grooves and projections of two adjacent fenders can be used together.