Ship Launching Airbags Integral Winding Technology For High Pressure Resistance
Preparations for launching a ship
1. Clear and clean the sharp objects such as iron on the berth to avoid scratching the Marine airbag and causing unnecessary losses.
2. Place the Marine airbags at the bottom of the ship at a predetermined distance and inflate it. Obact the rising state of the ship and the pressure of the air bag at any time.
3. After inflating all Marine airbags, check the state of the air bags again, check whether the ship is balanced, and check whether the berth is clean and tidy.
4. The most important thing for the ship to use the air bag to launch is the stern first, and the stern first introduces the water surface; If it had gone the other way, the propeller at the back of the boat would have scraped the air bag, causing a safety accident.
Ship launching airbags performance table
| Diameter | Layer | Working pressure | Working height | Guaranteed bearing capacity per unit length(T/M) |
| D=1.0m | 6-8 | 0.18MPa-0.22MPa | 0.5m-0.8m | ≥13.7 |
| D=1.2m | 6-8 | 0.17MPa-0.2MPa | 0.6m-1.0m | ≥16.34 |
| D=1.5m | 6-8 | 0.16Mpa-0.18MPa | 0.7m-1.2m | ≥18 |
| D=1.8m | 6-10 | 0.15MPa-0.18MPa | 0.7m-1.5m | ≥20 |
| D=2.0m | 8-12 | 0.17MPa-0.2MPa | 0.9m-1.7m | ≥21.6 |
| D=2.5m | 8-12 | 0.16MPa-0.19MPa | 1.0m-2.0m | ≥23 |
Common sizes of ship launching airbags:
| Size | Diameter | 1.0m,1.2m,1.5m,1.8m,2.0m,2.5m,2.8m,3.0m |
| Effective Length | 8m, 10m,12m,15m,16m, 18m,20m,22m,24m,Etc. |
| Layer | 4layer,5layer,6layer,8layer,10layer,12layer |
| Remark: | According to different launching requirements, different ship types and different ship weights, the slope ratio of berth is different, and the size of Marine airbag is different. If there are special requirements, can be customized. |
Method for preservation and repair of ship launching airbags
1. Preservation of air bag:
When the ship's launch air 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, and away from heat. 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 ship launching 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.
Product picture of ship launching airbags
