Metal are the core, center piece of global economy. No matter in the manufacture of cables or car or in the production of other electronic products, metals have become increasingly important to commerce. However, as a finite resource, metals face dried up in the future. Lengthening the lifetime of metals become necessary to realize the sustainable development of society.
Before we discuss how to lengthen the lifetime of metals, we had better know the life circle of metals. Beginning from the natural resources, the metal containing ores are extracted and purified for natural stocks rarely exist in pure form. Subsequently, the concentrated ores are transformed into metals. After further refining process, metals or metal compounds are traded or further processed into specific components used in different applications. The lifetime of the metals is closely related with that of its products. When the products are out of use, it means the end of metals’ life.
In fact, many metal scraps can be recycled, therefore the lifetime of metals get lengthened. Which metals are worthy of recycling? There generally have three kinds: ferrous metals like iron and chromium, non-ferrous metals such as copper and aluminum, precious metals like gold and silver. Of them, copper and aluminum recycling markets have been matured. There are mainly four methods: cryogenic freezing method, chemical stripping method, thermal decomposition and mechanical separation.
Among these methods, mechanical separation is more popular than other technologies. The main advantages are that it can realize the comprehensive recollection of copper and plastic, reduce the pollution to atmosphere and have a comparatively simple operation.
Whirlston is absorbed in the manufacture of copper cable granulator and wire stripping machine for twelve years. Many years’ experience allows us to offer the right equipment for your special needs and provide technical support for you.