What it does
The Circular-shape steel rolled coil has various structural problems and a high accident rate. Therefore, I designed a steel rolled coil with an Oval-shape. It prevents accidents and loosening during the loading and transportation process.
Your inspiration
Recently, I heard the news that a 9-year-old girl died after being crushed by a steel rolled coil. And, there are many accidents caused by steel rolled coils worldwide. Most accidents are due to the Circular-shape and the failure to control the steel rolled coil. Therefore, we tested several steel rolled coil models with modified structures, and obtained data showing that the safest steel rolled coil can be produced when a curvature of 30 to 40% to the surface. After theoretical modifications, it was discovered that a steel rolled coil with an eccentricity of 0.8 was the most efficient, and an invention was produced based on this.
How it works
This work is an Oval-shape steel rolled coil, designed with an eccentricity of 0.8. The oval structure, unlike the existing Circular-shape steel rolled coil, is structurally efficient against external forces. So, it can prevent accidents during the loading and transportation process. Through ramp experiments and external force experiments, it was confirmed that the Oval-shape steel rolled coil is a structure that is easy to control because it moves in place without rolling when subjected to external force. In addition, since it moves less than a Circular-shape steel rolled coil, it can also prevent loosening. As a result of designing steel rolled coils with various curvatures and analyzing them theoretically and experimentally, the Oval-shape steel rolled coil with an eccentricity of 0.8 showed the most safety. Overall, this work is an invention that can prevent accidents that occur during loading and transportation through the Oval-shape steel rolled coil.
Design process
This work goes through the process of manufacturing of a 'slab' by heating it at a high temperature, similar to the development of existing Circular-shape steel rolled coils. Afterwards, the surface area of the slab is increased using bending and the basic shape is maintained by rolling it into a steel rolled coil. During the rolling and bending process, there is a difference from the existing Circular-shape steel rolled coil manufacturing method, and it is produced by rolling using an oval bending machine with an eccentricity of 0.8. Slabs that have been rolled through an oval bending machine can be brought to the processing stage through the same cooling method as before. In the cooling process, cooling is carried out by touching the lower point to the ground. The produced Oval-shape steel rolled coil will be loaded, transported and used similarly to existing structures. A unique point is that caution must be taken compared to Circular-shape steel rolled coils in that accidents can be prevented only by using the center point of the structure during the loading process. The overall structure is similar to the existing circular coil shape, And, no significant changes in the actual loading and transportation process, except for the bending machine in the production process.
How it is different
The structural characteristics of existing Circular-shape steel rolled coils have been a problem as they are the biggest factor in many accidents. Because of this, many countries call them ‘outlaws on the road.’ This invention presents a conclusion that stability can be increased through the process of manufacturing a slab by rolling it with a bending machine with an eccentricity of 0.8 during the manufacturing process of the existing structure. In addition, after verifying this experimentally and theoretically, we discussed the direction to produce the most complete model through in-depth consideration with experts in this field. Using the idea of this invention, accidents occurring due to existing steel rolled coils are prevented. and devised a way to load and transport it in an efficient manner, it can be said to be a very original design in terms of industry and engineering.
Future plans
Currently, we have shared this idea with a metal processing company and completed the production and testing of a miniaturized model. Through ramp experiments and external force experiments, it was experimentally and theoretically verified that the steel rolled coil with an eccentricity of 0.8 is the most efficient model. As a plan, we will acquire a patent for this technology to collaborate with companies that produce slabs, and will attempt to contact companies that can band slabs. Additionally, to confirm information about more accurate experimental data, we plan to receive help from research institutes to better environment.
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