Fender inflation pressure is generally divided into 50 type and 80 type, namely 0.05MPa and 0.08MPa.
The maximum bursting pressure of fender is 0.7MPa.
Oversized fender should be released after the gas, with open top container container transportation.
Use instructions and maintenance precautions
1. The maximum deformation of the inflatable fattening board of the ship in use is 60% (except for special ship type or special operation), and the working pressure is 50KPa-80KPa (the working pressure can be determined according to the user's ship type, tonnage size and proximity environment).
2. Marine inflatable fender in use should pay attention to avoid sharp objects prick and scratch; And timely maintenance and maintenance, in general, 5- 6 months for a pressure test.
3. Often check fender body without puncture, scratch. The surface objects in contact with the fender shall not have sharp protruding hard objects to prevent piercing the fender. When the fender is in use, the cable, chain and wire rope hanging the fender shall not be knotted.
4. When the fender is not used for a long time, it should be washed, dried, filled with appropriate amount of gas, and placed in a dry, cool and ventilated place.
5. Fender storage should be far away from heat sources, do not contact with acid, alkali, grease and organic solvents.
6. Do not stack when not in use. Do not stack heavy objects above fender.
Whether the concrete can be repaired should be guarded against air leakage and damage is serious, specifically to see the actual picture or the factory has technical personnel to the site to understand the relevant matters, specific can consult the factory in advance to understand.
How to choose fender size and style
The selection of pneumatic fender should first understand the ship type, deadweight tonnage, operating sea environment, ship length and width.
Give the above information to the factory and the factory will design the most reasonable size for you based on this information.
Precautions for selecting pneumatic fender
1. The selection of pneumatic fender should take into account the tonnage of the ship's derrick and the maximum arm length; Because the weight and diameter of the pneumatic fender can not be higher than the ship derrick tonnage and maximum arm length.
2. Pneumatic fender is divided into sheath type and portable, to see what kind of ship fender is suitable for.
3. Pneumatic fender should be selected according to different diameters, and the number of cord layers is different.
If you are not sure about the above precautions, you can also contact the manufacturer. The manufacturer will recommend the ship fender suitable for you according to the situation.
Method for preservation and repair of Marine launching air bag
1. Preservation of Marine air bag:
When the Marine water bag is not used for a long time, it should be cleaned and dried, filled and coated with talcum powder, and placed indoors in a dry, cool and ventilated place, away from heat source. The air bag should be spread flat, not stacked, nor piled on the air bag weight. Air bag should not be in contact with acid, alkali, grease and organic solvents.
2. Repair of Marine air bag:
The damage forms of Marine launching air bag can be generally divided into longitudinal cracks, transverse cracks and nail holes.
The operation steps are as follows:
(1) mark out the repair range as the boundary of the polished surface. Repair scope to the crack around the expansion, do not omit hidden damage. The extension range varies depending on the type of airbag and the damage range, usually 18-20cm for 3-layer; 4-layer is 20-22cm; The 5th layer is 22-24cm; The six layers are 24-26cm.
(2) polish and repair part of the surface until the fiber line is exposed, but do not damage the fiber line.
(3) For long cracks, cord thread should be used first. The location of the stitching pinhole is about 2-3cm away from the crack, and the stitching needle spacing is about 10cm.
(4) clean the surface of the part to be repaired with gasoline and dry it.
(5) coated with a layer of glue. Slurry is made by soaking raw rubber in gasoline. The weight ratio of raw glue and gasoline is usually 1:5, and the first layer is slightly thinner (the weight ratio of raw glue and gasoline is desirable 1:8). After the first layer of slurry cool dry, then coated with a slightly thicker slurry and air dry.
(6) with a thickness of 1mm, width of 1cm than the crack sealing rubber strip.
(7) Brush the gasoline and dry it.
(8) For longitudinal cracks, a layer of hanging rubber cord cloth with a width of about 10cm is applied perpendicular to the direction of the crack.
(9) lay a layer of hanging rubber cord cloth parallel to the longitudinal direction. The lap area around the crack should be greater than 5cm and should be cut and pasted into rounded corners.
(10) lay a layer of hanging rubber cord cloth diagonally. The direction of the cord should be the same as that of the oblique cord (or reinforcing fiber) in the cyst wall. The surrounding lap area should be 1cm larger than the previous layer of hanging plastic cord cloth, and all sides should be cut and pasted into rounded corners.
The size and specifications of Marine launch airbag should be designed according to the ship type, dead weight tonnage, deadweight tonnage, ship length, ship width, slipway slope ratio, tidal variation and other comprehensive information.