The skill in casting thick-walled vessels such as these ladles is in producing sound cross-sections with no voids or gas porosity. With heat resistant castings, low carbon steel can be poured at very high temperatures and this permits the molten mass to purge itself of air entrapment, allowing metal to fill shrinkage voids before the entire mass solidifies. The final ladle castings were inspected for defects using ultra-sonic inspection techniques. Ultra-sonic inspection is a non-destructive testing technique used to detect imperfections (voids, cracks) below the surface of solid materials. This process uses high-frequency sound waves that pass through the solid material and monitor the echo (bounce-back) distance of the sound wave within the material. The theory supporting this method is that if the material is sound, the echo distance equals the material thickness.
Typical mine skips can move as much as 600 cubic feet of ore at a time, but mine equipment fabricators like Wabi Iron & Steel Corp. can adjust to a mine’s needs. They are no strangers in designing and building heavyweight ore movers, like the 50-ton skip that’s now operating at the Vanscoy potash mine in southern Saskatchewan. In today’s mining world, it’s conveyance equipment like this that are being utilized to get the job done efficiently and safely.
Such inspections would include a mine’s conveyance equipment. For example, it’s imperative that an underground operation utilize safe and reliable mine cages for the transport of men and materials. Mine cages must move at a preset speed to prevent accidents. Should it encounter an over-speeding problem, an emergency braking system engages to bring the cage to a halt. There are a number of compliant braking systems available such as rope breaking, traction sleeve braking and dynamic braking. Mine equipment fabricators like Wabi Iron & Steel Corp. design safety mechanisms like these as well as the robust mine personnel cages themselves.
Two of the most important factors in mitigating a mining operation’s environmental impact are Best Practices and the use of ISO-certified mining equipment from mine rail cars to skips and cages. These factors ensured that products are mined, transported, and stored in the most environmentally-friendly manner.
Training and continuing education is essential to the success of the implementation of Best Practices and use of industry-grade mining tools. For quality mining equipment, refer to trusted suppliers like Wabi Iron & Steel Corp., well known in the industry for providing mining sites with the most reliable equipment such as mine ore cars, skips, cages, and more.