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About Perforated Metals
Perforated metals contain hole patterns of varying
sizes and shapes created by punching presses. Types of hole patterns
include staggered rounds, centers and squares, straight square slots,
round and line squares, round slot end and side staggered and hexagons.
Perforated metal manufacturers make their products out stainless steel,
galvanized steel and cold-rolled carbon steel. Perforated sheets can
be produced from sheets providing options that include margins and blank
areas, along with full perforation. A common way to produce perforated
sheets is using coils. This method provides great flexibility in both
design and handling. Perforated coils can be produced from coils, as
well, which is generally faster than perforating sheets.
Expanded metal is similar to perforated metal, but it has been cut, rather
than punched, and stretched into a shaped framework. Materials out of
which expanded metal is made include sheets of steel, stainless steel,
aluminum, tin, copper and plastic. Flattened expanded metal has been
cold rolled to reduce thickness and increase surface smoothness. Using
expanded metal is an ecologically-minded approach, as it is elaborated
from discarded raw material. Expanded metal is basically transparent,
has high resistance and excellent mechanical properties and is an excellent
conductor. Expanded metal can be made out of non-metal products such
as plastic, which then makes it an insulator.
Perforated and expanded metal possess numerous uses in a wide variety
of applications. Perforated metals are used for filtration, reinforcement
and decoration. Perforated metal manufacturers provide products that
can be made into screens, filters, baskets, trash cans, tubing, light
fixtures, vents, audio speaker covers and patio furniture. Like perforated
metals, expanded metals are also used for filtration, reinforcement and
decoration. Common applications include enclosures, such as lockers and
cages, supportive structures, such as grating, shelves and catwalks and
protective structures, like guards and fencing. Because of their many
uses, perforated and expanded metal is found in almost every industry,
including the automotive, chemical, pharmaceutical, waste management
and construction industries.
The decision whether to expand or perforate metal depends upon the industrial
application, budget and specific design requirements. Perforated metal
remains useful because it is easy to manufacture, cost-effective, versatile
and suitable for a wide range of metals. Factors to take into account
when considering perforated metal manufacturers include quantity, hole
pattern and size and metal type and thickness. A less expensive material
does not guarantee the lowest manufacturing cost. A higher strength alloy,
which would be a more expensive material, may allow a reduction in thickness,
reducing the overall price of perforation. Expanded metal is cost-effective
because the metal is stretched rather than punched, reducing scrap metal
waste. When considering having metal expanded, take into account structure
design, thickness and strand dimensions.
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Types of Perforated Metal
- is heavy-duty expanded metal with thicker
bearing bars used for industrial flooring, stairs and transportation
applications, such as street grating and railroad grating.
- is sheet metal that has been stretched into a framework.
- control the flow of fluids, sunlight and noise for
light fixtures, window openings and acoustics.
- (http://www.floor-gratings.com) consists of durable, expanded
metal assembled in a grid configuration and used for flooring, stairs
and catwalks in situations involving light to moderate traffic.
- are used for insulation, decoration and structural
support in architectural and construction applications.
- block objects and substances from entering enclosed
areas, providing protection and security.
- is aluminum sheet metal that has been perforated with a punch.
- are used as screens, tubing, panels and
grating in a variety of different industrial applications.
- is a metal plate that has been punched with a decorative shape.
- are sheets of metal that has been punch with one of various shapes.
- is steel sheet metal that has been perforated with a punch.
- are used for filtration, light and fluid diffusion,
shielding and dampening applications.
- is annular-shaped panels cut out of rectangular
grating and used in circular or annular areas.
- is grating that may be installed with either
side facing up with no difference in appearance or carrying capacity.
- consists of straight bars and bent connecting bars
that are joined by rivets at their contact points.
- begins as a solid metal sheet that is then
uniformly slit and stretched to create diamond-shaped openings.
- is manufactured by applying pressure through
dies to alter the cross sectional shape of a metal cross bar.
- is available in a variety of different weave patterns
for use in air filters, ventilation covers, animal cages, window guards
and clothes dryers.
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