9 Feb 2018
Perforated metals, or pierced metal sheets with different shapes and patterns, have been used for hundreds of years for both decorative and functional purposes. In the 19th century, they were manually perforated to serve as coal separating screens. Later, with further industrial and technological developments, custom presses appeared, using dies to perforate metals. Later still, we saw the emergence of rotary pinned perforation rollers, laser perforation and other game-changing technologies. Today, metal perforation is such an efficient and reliable practice that it’s used on a large scale for a wide range of applications, with readily available perforated metals, such as copper, stainless steel and aluminum.
The most common of these applications of include:
Perforated metals contribute to the food industry in a number of ways. First, beehives made from perforated metals support the modern beekeeper with less delicate frames. Additionally, perforated sheets are used liberally in food processing as grain dryers. They’re also used for silo ventilation, wine vats, cheese molds, juice presses and fish screens.
One of the most heavily engaged applications of perforated metals is architectural use. First, they are commonly used for fencing, signage, column covers, access control and aesthetic fittings. In addition, they are used for eco-friendly building, with design components like sunshade, cladding and panels. These, according to environmental studies, offer energy savings of up to 25 percent.
Another heavily engaged area of application for perforated sheets is the filter mechanism, used extensively in the chemical and energy industries. This broad category includes laboratory centrifuges, battery separator plates, washing machine drying baskets, water, gas and air purifying screens and traditional mine and coal washing cages.
Aside from building facades, the most common use of perforated metals is found in the automobile industry. Auto parts that utilize perforated sheets include silencers, running boards and grills. Furthermore, nearly all filters, from air filters, to oil filters, to ventilation grids, are made with perforated sheets.
Finally, the last common application of perforated metal sheets that we will mention is a utilization in material strength and support. Perforated metal is, for example, used for strengthening glasses subjected to extreme environments, and in the manufacturing of screens of textile printers, cement slurry, dyeing machines, felt mills and blast furnace screens.