Dry underwater welding technologies have the ability to improve conventional offshore oil and gas facility maintenance, as well as maintenance in any other facility. Regular underwater welding technologies traditionally provide solutions that are only temporary.
This means the welds must be reworked later in dry conditions, or will have to be routinely repaired. This costs a lot, and can seriously disrupt schedules. The good news is that new underwater welding systems like Neptune Marine's NEPSYS technology are low cost and can provide a great permanent weld as good as one done in dry dock
In this technology, a compact housing is used to fully isolate and enclose the zone affected by heat from the environment surrounding it. It's important to note that this housing only needs to be big enough for welding electrodes to achieve complete runout.
When a complex structure is being welded, it might be appropriate to customize it to surround the entire area of the weld. However, the housing does not need to enclose all of the welding equipment or the diver who's doing the welding. That makes this type of welding cheaper than if everything needed to be enclosed.
This habitat is what allows the welder to maintain ideal conditions. The machinery constantly delivers a heated, pressurized inert gas to the habitat, creating a controllable environment around the weld's immediate area. This eliminates many problems we traditionally associate with underwater welding.
The inert gas is delivered at a pressure above that of the water outside, which allows the welder to be sure that the area being repaired remains dry. This also allows for the area to be heat treated before and after the weld is made.
The conditions around the heat affected zone are enhanced, since the habitat eliminates hydrogen from the weld vicinity and prevents the sea water around it from quenching the weld. Even distribution of heat is thus much easier.
Providing an ideal environment in dry welding allows for a much higher quality weld to be achieved, as well as greater weld consistency than is possible with wet welding techniques. This type of dry underwater welding permits a permanent weld with high structural strength, but requires only portable equipment. This allows for repairs to be made without a significant impact on your operations.
Risks of ordinary underwater welding include electric shock, decompression sickness, and buildup of pockets of hydrogen and oxygen. Dry welding prevents the creation of these potentially explosive pockets of gas. However, it's still important to take precautions against decompression sickness and to maintain proper insulation on welding equipment.
Since dry underwater welding is less costly than conventional dry dock, hyperbaric, and other welding methods, and highly portable, it's suited to emergency repair situations where a fast response time is desirable. That means that there are a lot of benefits to dry underwater welding, and significant commercial applications.
If you need a fast solution for repairs underwater that's comparatively less expensive, you may want to look into a portable dry underwater welding system. These systems compare well to existing technologies, but they're faster and easier to use, as well as being much more portable. Think about this kind of welding for your repair solutions. - 15275
This means the welds must be reworked later in dry conditions, or will have to be routinely repaired. This costs a lot, and can seriously disrupt schedules. The good news is that new underwater welding systems like Neptune Marine's NEPSYS technology are low cost and can provide a great permanent weld as good as one done in dry dock
In this technology, a compact housing is used to fully isolate and enclose the zone affected by heat from the environment surrounding it. It's important to note that this housing only needs to be big enough for welding electrodes to achieve complete runout.
When a complex structure is being welded, it might be appropriate to customize it to surround the entire area of the weld. However, the housing does not need to enclose all of the welding equipment or the diver who's doing the welding. That makes this type of welding cheaper than if everything needed to be enclosed.
This habitat is what allows the welder to maintain ideal conditions. The machinery constantly delivers a heated, pressurized inert gas to the habitat, creating a controllable environment around the weld's immediate area. This eliminates many problems we traditionally associate with underwater welding.
The inert gas is delivered at a pressure above that of the water outside, which allows the welder to be sure that the area being repaired remains dry. This also allows for the area to be heat treated before and after the weld is made.
The conditions around the heat affected zone are enhanced, since the habitat eliminates hydrogen from the weld vicinity and prevents the sea water around it from quenching the weld. Even distribution of heat is thus much easier.
Providing an ideal environment in dry welding allows for a much higher quality weld to be achieved, as well as greater weld consistency than is possible with wet welding techniques. This type of dry underwater welding permits a permanent weld with high structural strength, but requires only portable equipment. This allows for repairs to be made without a significant impact on your operations.
Risks of ordinary underwater welding include electric shock, decompression sickness, and buildup of pockets of hydrogen and oxygen. Dry welding prevents the creation of these potentially explosive pockets of gas. However, it's still important to take precautions against decompression sickness and to maintain proper insulation on welding equipment.
Since dry underwater welding is less costly than conventional dry dock, hyperbaric, and other welding methods, and highly portable, it's suited to emergency repair situations where a fast response time is desirable. That means that there are a lot of benefits to dry underwater welding, and significant commercial applications.
If you need a fast solution for repairs underwater that's comparatively less expensive, you may want to look into a portable dry underwater welding system. These systems compare well to existing technologies, but they're faster and easier to use, as well as being much more portable. Think about this kind of welding for your repair solutions. - 15275
About the Author:
The Neptune Marine's Dry Underwater Welding system achieves quality welds that satisfy AWS 3.6 Class A and various other structural dry welding codes.
