Punched metal plate is a type of metal plate with many holes, suitable for various purposes such as home appliances, automobiles, buildings, and machinery. As an example around you, it is easy to associate punched metal plates with external circular holes arranged neatly corresponding to the heating parts of a computer. However, the shape of the hole varies depending on its purpose.
Punched metal plate is a metal plate that is processed by punching holes through a mold. Openings can not only reduce weight, increase breathability, and achieve heat dissipation, but also be used in soundproofing scenarios. In addition, text and images can be represented through openings to enhance the sense of design.
Punched metal plate is made by using the lower die support of a "stamping die" to position the metal plate, and then stamping it with a "punch". Compared to laser processing, the processing time is shorter. The size accuracy of the hole is also very high, with small errors. Using universal molds can also reduce initial costs.
On the contrary, if you want to manufacture punched metal mesh with complex hole shapes, you can also use specialized molds for processing.
The main materials for punched metal plates include iron, steel, stainless steel, and aluminum, but other materials can also be used for processing. Steel products are used for building decoration, stainless steel products are used for ventilation fan inlet, aluminum products are used for household appliance heat dissipation, etc.
Punched metal plates can be expanded in use by changing the material, drilling method, plate size, opening ratio, and other methods.
According to the shape and arrangement of the holes, punched metal sheets are divided into many types. In addition, punched metal plates of different materials also have different characteristics.
The shape and type of holes: Punched metal sheets with "round holes" are the most common, as well as punched metal sheets with "square holes", "rectangular holes", "R-corner rectangular holes", "long holes" and other shapes. Other types include perforated metal sheets with alternating diamond shaped holes, circular holes, and cross shaped holes.
Arrangement of Holes: The most common arrangement is the "60 ° Thousand Bird Style", where holes are opened along the vertices of equilateral triangles. There are also the "45 ° Thousand Bird Style" based on right angled isosceles triangles, and the "Parallel Style" in which the vertical and horizontal directions are arranged without displacement is also very common. There are also punched metal plates with slanted "herringbone parallel patterns", "long hole diagonal lines", and "turtle shell like patterns".
Main steel plate materials: Punched metal plates are mostly made of materials such as steel, stainless steel, and aluminum. Stainless steel is often made of materials such as SUS304 and SUS430, as they are not easily rusted and can also be used outdoors. Steel includes cold-rolled steel plate SPCC, electroplated galvanized steel plate SECC, hot-dip galvanized steel plate SGCC, and pickled steel plate SPHC, which are relatively cheap and have good processing performance. Aluminum is lightweight, easy to process, and easy to transfer heat. Commonly used are A1050, A1100, A5052, etc.
Building interior and exterior decoration materials: Punched metal plates can be used for interior and exterior decoration of buildings. It is difficult to notice without deliberate observation, such as perforated metal plates used for exterior decoration on apartments or apartment balconies. Punched metal plates are used as components for fixing fences, walls, and solar panels. In terms of interior decoration, ceilings, wall panels, partitions, lighting fixtures, chair backrests, various interior decorations, etc. are all used.
Automotive parts: Many of the internal components of a car use punched metal sheets. For example, air filters and oil filters, exhaust mufflers, speaker covers, etc. The functions that can be achieved through punching metal plates include heat dissipation, lightweighting, dust prevention, and sound insulation measures, designed in their respective suitable shapes.
Components of household appliances: Various styles of punched metal plates are used for the appearance and internal parts of some household appliances. For example, many people immediately associate it with a stove ventilation fan filter. It is made of metal plate and prevents dust and garbage from adhering to the ventilation fan through small holes. Other components such as furnace grilles, radiator grilles, and motor covers are also made of punched metal plates.
Sorting machine: Punched metal plates are also used as mechanical components for screening grains, seeds, minerals, etc. By adjusting the size of the hole, it can be divided into large particles, small particles, etc. For example, in order to sort the size of beans such as soybeans, the hole diameter of the punched metal plate can be adjusted to separate soybeans and adzuki beans. In addition, punched metal plates can also be used for screening coal, sand, and gravel.
Plant filter: The filter is a component installed in the pipeline through which fluid passes, responsible for removing dirt and other debris. A filter screen is used to remove impurities such as essential oils, flour, and pulp. The hole shape and spacing design of punched metal plates must take into account both pressure loss and the ability to remove impurities.
Ancillary facilities of buildings: Punched metal plates can also be used for sound insulation and building insulation on construction sites. In addition, it can also be used for spray fans in tunnels.
Other: In data centers and other environments, punched metal mesh is used as a cover for placing server racks. Improve ventilation and facilitate cooling while making the interior less susceptible to touch. Punched metal plates with circular holes, elongated holes, rectangular holes, and other styles are commonly used. Other design applications include monuments, signage, and graphic drilling. Make holes only in the text or images to make them more prominent. On the other hand, only the text part is not punched to highlight it.
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