The beneficiation ratio refers to the number of tons of raw ore required for each ton of concentrate selected. Usually expressed in multiples. Its calculation formula is as follows: The rich ore ratio is the ratio of the grade of useful minerals in the concentrate to the useful ore content in the ore, ie the concentrate grade is several times the grade of the ore. The higher the rich ratio and recovery rate, the better the beneficiation efficiency. The formula for calculating the rich ratio is as follows: Rich ore ratios are sometimes called enrichment ratios.
Vacuum forming is a manufacturing process used to create car parts by heating a plastic sheet and then stretching it over a mold using vacuum pressure.
You may probably find the automotive industry is the most made by vacuum forming,both for comsumer and commercial vehicles,trucks, and buses.Usually the vacuum forming car parts contain:Front bumper, rear bumper, ceiling, roof luggage compartment, wheel arches, doors, tailgate padding, dashboard, fenders, car logo, and interior and exterior plastic decorations.
In addition, the plastic trays which are used for the transportation of the engine block and cylinder also was made by vacuum forming.
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