Technological innovation is the dominant factor in the development of new projects in the pipeline sector, especially in the offshore pipeline sector. At present, some of the world's leading marine pipeline companies face more difficult projects. In deep water pipeline laying, both productivity and equipment reliability are required, and advanced, reliable and sophisticated equipment and systems are required. This is also the technical development trend of offshore pipelines.
Pipe
Oil and gas pipeline construction needs to ensure that pipes with longer service life and higher reliability can be transported at higher pressures. Between 1980 and 2002, changes in steel content led to the development of pipeline types: X-45, X-50, X-65, X-70 and X-80; between 2003 and 2005, X-100 and X were being considered. -120 higher steel grade. The maximum pipe wall thickness has been increased from 25.4mm to 40mm.
2. Pipe welding process
Until the 1980s, all pipe welding processes were basically hand-welded, that is, welding by welders using electrodes or inert gases. At the end of the 1980s, semi-automatic and fully robotic automatic welding systems in the field of oil and gas pipelines have been recognized.
The laying of submarine pipelines is carried out on huge semi-submersible flat-bottomed pipe barges that are expensive and can work continuously for 24 hours. The reduction or increase of pipelaying time on pipelaying vessels means the gains and losses of profits, so offshore operations companies The most advanced, most complete and least expensive technology is preferred. Over the past five years, some of the world's leading marine pipeline companies have invested heavily in research and development of the most advanced and sophisticated welding systems, and the most important is to improve productivity per unit of time.
In order to technically innovate the welding system, it is required to have higher and higher precision in the preparation of the groove of the pipe to provide qualified welding results. Therefore, a semi-automatic or fully automatic welding system is used for the beveling operation to ensure that the uniformity of the circumference of the pipe is within the tolerance of ±0.13 mm. The robotized welding system can not only achieve the uniformity of the above-mentioned pipe groove, but also the tolerance is only within 1.6mm, and the groove straightness is within ±0.05mm, and the groove surface roughness can be achieved. Not more than 1.6mm.
Italy's Goriziane SPA has achieved satisfactory results in the development of its offshore pipeline automation welding system, in line with the X-80 steel grade pipe (wall thickness over 30mm) requirements for pipe groove preparation before welding. The company's pipe machine has been installed on the pipelaying vessels of some of the world's largest pipeline builders. Most importantly, the pipe machine must be able to meet the required tolerances during the specified working hours, maintain a uniform machine alignment, and avoid any inaccuracies, thickened ends, undulations. Or other work defects.
Welded Mesh Fence
The Welded Mesh Fence adopts low-carbon steel wire, which is beautiful and durable, not easy to deform, easy to install, easy to install, flexible to assemble, and widely used. It can be used on roads, railways, and highways. It can be used for different periods of time according to different column-fixing methods. It can be made into a permanent mesh wall or used as a temporary isolation mesh.
Welded mesh fence can be divided into Welded Mesh Fence,High Security Welded Mesh Fence,Welded Wire Mesh Fence,Galvanized Welded Wire Fence
If you are not sure how to determine the column fixing method, you are welcome to consult us at any time.
Dongjie Wire Mesh has a professional technical guidance team that can help you choose the column and Welded Mesh Fence suitable for your use environment.
FAQ
Q1: Are you a manufacturer or a trader?
A1: We are a professional manufacturer of wire mesh products. We specialize in wire mesh for decades and have accumulated rich experience in this field.
Q2: How to make an inquiry?
A2: You need to provide material, sheet size, wire diameter, hole spacing and quantity for inquiry. Special requirements can also be specified.
Q3: Can you provide free samples?
A3: Yes, we can provide free samples in 20cm-50cm size as well as our catalog. But the courier fee will be on your side. If you place an order, we will refund the courier fee.
Q4: What is your payment term?
A4: In general, our payment term is T/T 30% advance payment, balance 70% against bill of lading copy. We can also discuss other payment terms.
Q5: How about your delivery time?
A5: 1. We always prepare enough stock materials for your urgent needs, and the delivery time for all stock materials is 7 days.
Depending on quantity and technology, you need accurate lead times and production schedules for non-stock items.
Welded Mesh Fence,High Security Welded Mesh Fence,Welded Wire Mesh Fence,Galvanized Welded Wire Fence
Anping County Dongjie Wiremesh Products Co., Ltd. , https://www.dongjiewire.com