Cradle to Gate
Identity ID
8b90b70f-206a-43fa-9b70-1635d3097ad8
Materials
Associated ID
25c5b93d-8c6a-4e02-ac3b-8feb699de42a
Included activities starts
Included activities ends
Description
The product represented by this dataset is a steel-tube tower, namely a lattice tower composed mainly of steel tubes, with other components made of steel tubes or section steel, with a single-piece weight of about 10000 kg, mainly composed of angle steel, steel plates and flanges, gusset plates, bolts, etc., manufactured through processes such as main-material cutting, accessory machining, the fabrication of round pyramidal tubes, riveting-welding assembly and welding. The key upstream raw materials of this product are angle steel, steel plates and accessories such as bolts, flanges and gusset plates, and the downstream is mainly applied to the support of overhead transmission lines, especially in large-span structures and urban power grid pole-tower structures. As for the system boundary, infrastructure such as the manufacture of production equipment and plant construction is not included within the dataset boundary. In terms of data sources and data processing, the data inventory is formed by merging data from multiple sources, and energy such as electricity is calculated using China's average energy mix.
Activity Description
The system boundary is the steel pipe tower from cradle-to-gate, starting with the input of raw materials and ending with the finished steel pipe tower leaving the factory. The main stages include main material cutting (angle steel, steel plate, etc.), accessory processing (bolts, etc.), forming circular conical tubes, riveting and welding assembly.
Process Description
Steel pipe tower refers to a lattice tower composed of steel pipes for main components and steel pipes or steel for other components. It is a supporting structure for overhead transmission lines to support conductors and lightning protection wires, so that the conductors meet the distance requirements from the ground and ground objects, and can withstand the load of the conductors, lightning protection wires and themselves and external loads. The steel tube tower is mainly composed of steel pipes, steel sections, flanges, node plates, bolts and other accessories. It has large cross-sectional stiffness, good cross-sectional stress characteristics, simple stress, and beautiful appearance. It is a tower-like lattice steel structure and is widely used in large-span structures and urban power grid tower structures to support overhead transmission lines.
Time period
2022
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of steel pipe towers mainly includes processes such as main material cutting, accessory processing, tapered tube fabrication, riveting and welding assembly. After the main material steel plate is cut and rolled into a tapered tube, it is welded and assembled with flanges, gusset plates and other accessories to form a tower section. The tower section leaves the factory after passing the final inspection.