Changlin ship launching air bag ¡ª how to select air bags?
Air bag diameter
The air bag diameter is mainly decided by the ship blocks' height. Ship lifting from blocks is the most important stage in the air bag launching process. At this stage, the ship whole weight is to be lifted by air bags, and the air bag working height must be larger than the block height. The air bag diameter should be selected according to the block height. The air bag diameter must be increased by 0.5m-0.7m, which is based on the block height, otherwise the air bag bearing capacity may be not enough.
At present air bags with diameter less than 1.2m can only be applied on small ships. Air bags with diameter 1.5m or 1.8m are used to launch over 10, 000dwt ships. For block height larger than 0.9m, diameter 1.5m air bags are mostly chosen for the launching. For block height larger than 1m, diameter 1.8m air bags are preferred.
Air bag length
For small ships, the air bag length should be slightly larger than the ship molded breadth. Air bag length can be decided by the formula: b
When moving a tug, a fishing boat and the like ship with small block coefficient, air bag ends must extend out of the ship sides, to get good stability of the ship moving. The extended length at each side should be slightly larger than air bag diameter.
For medium ships, the extended length at each end shall not be very long. For example, a normal ship like cargo ship with block coefficient cb > 0.75, airbag should be equal to the breadth of flat bottom at mid-ship (the breadth excludes arc part at bilge).
For large ships, if existing airbag length is shorter than the flat bottom breadth, the longest air bags should be ordered. The airbags layout can be interlaced mode or twin-row mode. We would like to provide advice and suggestion according to customer's specific situation.
Type: air dryer truck model: sino size: standard
Oem no.: wg9000360521 place of origin: shandong china (mainland) brand name: sino
Model number: wg9000360521
Character: oem factory delivery: by sea or express (dhl, ems, fedex, ups, tnt)
Price: negotiable
Standard and oem is guaranteed
193 Marine Paint Suppliers
Short on time? Let Marine Paint sellers contact you.
Color: Orange,yellow, or customized colors like red, blue, green, black, etc.
Material: PE shell with PU foam inside, galvanized or stainless steel fasteners.
Cusomized Design: Available.
Dredging pipefloat are made from high wear resistance PE by rotational molding technology. One complete dredging pipefloat consists of two halves filled with PU foam which are connected by galvanized bolts, nuts and washers. The reasonable structure makes the dredging pipefloat perform well in tough dredging condition.
Features of plastic navigation buoys:Environmentally Friendly; Easy Maintainence; No painting, ever; High Impact Reisitance; Long Service Life
Navigation buoy is an artificial sign that helps guide the navigation of ships, locate and mark obstructions and indicate warnings.
The plastic navigation buoys are made of two parts: float section and extended tower. The float section is made of virgin PE with PU foam inside and the tower of virgin PE.
Features of Plastic Navigaiton Buoy:
Environmentally Friendly
Easy Maintainence
No painting, ever
High Impact Reisitance
Long Service Life
Customized plastic navigation buoys available. Most of the buoys are made to order and can be designed to any shape or size to meet clients' requirements.
COF-01 Coefficient of Friction Tester
Background
The coefficient of friction pertains to the friction present between two surfaces. A lower coefficient of friction signifies that less force is needed for sliding to commence, while a higher value indicates a greater force requirement.
The coefficient of friction varies based on the specific materials involved. In the context of packaging film, the coefficient of friction refers to the extent of 'slipperiness' exhibited by the packaging material when in contact with different components of the packaging machine or other materials.
The management of the coefficient of friction holds significance in enhancing performance and mitigating issues during the creation, transportation, and storage of packages.
Numerous factors, such as antiblock additives, corona treatment, antistatic agents, inks, varnishes, and adhesives, can influence the coefficient of friction.
Application
The COF-01 Coefficient of Friction Tester is designed to measure both static and kinetic coefficients of friction for a wide range of materials. These materials include plastic films, sheets, rubber, paper, paperboard, woven and non-woven fabrics, metal-plastic composite belts used in communication cables and conveyor belts, wood, coatings, brake pads, windshield wipers, shoe materials, and tires. The tester can also be adapted or modified to accommodate various other material types and testing standards.
Standards: ASTM D1894, ISO 8295, TAPPI T816, GB 10006
Technical Features
The COF-01 Coefficient of Friction Tester has been aiding the flexible industry since its inception.
1.It employs PLC control and an HMI touch screen for interaction. The design, of industrial caliber, assures stability and extended service life.
2.The driving mechanism is powered by a stepper motor and a precision ball lead screw.
3.It exhibits real-time test curves, and automatically records maximum, minimum, and average test results.
4.Both static and kinetic coefficients of friction are gauged.
5.Compliance with multiple test standards is incorporated.
6.A dot matrix microprinter is integrated.
7.The test plane is constructed entirely from aluminum.
8.It offers RS232 output and professional software(Optional).
9.Local language display is supported(Customized).
Main Parameters
Load Cell 5 N(or as required)
Accuracy 0.5 F.S.
Sled 200�±1g (or as required)
Sled Size 63.5mm*63.5mm (or as required)
Test Speed 100mm/min (ISO), 150mm/min (ASTM)
Dimensions 540mm(L)*380mm(W)*240mm(H)
Weight NW 21kg
Power 110~220V 50/60Hz
