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Metal shell processing: type en fabricage-eigenschappen

2020-09-19

Metal shell processing: type en fabricage-eigenschappen

Metal-shell-processing

Problemen met het materiaal:

  • Over de materialen die zijn gebruikt om de metalen behuizing te maken
  • Type plaat metalen omhulsel
  • Productietechnologie van metalen schaal
  • Wat betreft ergonomie en koeling van plaatstalen behuizingen

Metal shell processing wordt gebruikt om moderne computers, of beter gezegd, systeemeenheden te maken. Elke systeemeenheid bevat een groot aantal elementen, die verantwoordelijk zijn voor de werking van de hele pc. Deze omvatten voedingen, moederborden, optische schijven, harde schijven, enz.

There are many types of sheet metal boxes, which are manufactured according to their technology. In addition, it is important to provide cooling and ergonomics in the equipment. The type of metal made into the case plays an important role. Generally, there are many nuances in the process of manufacturing computer equipment. If you want your computer to work normally for a long time, you should understand them.

Materials used to make metal casings

In the manufacture of metal casings for computer technology, materials with certain characteristics are required, which makes it difficult to choose. They must provide the required protection for computer components from vibration and any mechanical influences. At the same time, they should contribute to the rapid cooling of heat-generating components during equipment operation. Therefore, aluminum is usually selected for the manufacture of high-grade housings,

Manufacturing-metal-casing

The reason lies in the characteristics of the metal. It has the best heat dissipation and heat dissipation capacity. Copper has the same quality, but aluminum is lighter and cheaper. However, the metal shells of plates made of SECC (special steel) coated with electro-galvanizing solutions have been more widely used. They are used in the mid-price segment of computer technology.

Recently, aluminum has become the most commonly used housing material due to its value. The structural properties of aluminum and its appearance provide designers with huge opportunities

Type plaat metalen omhulsel
Mass production requires strict manufacturing standards for various types of products. This applies to almost all industrial fields, and computer technology manufacturing is no exception. Compliance with the standard not only allows you to be confident in the strict parameters of the components used, but also allows you to assemble equipment from components designed and produced by a large number of suppliers.

The conditions for further use constitute the standard size of the product. For ease of use, the housing has certain characteristics. There is still no perfect standard. 25 standard sizes are now used. These are not only metal shells for mass production, but also single shells designed to solve special problems. The latter is specifically needed by narrow experts. Most people's interests extend to the former, and we will consider them in the future.

1. Single piece.

It is a single unit of PC system equipment, monitors, speakers and other components. Except for the system unit, the latter is usually an external device, but not in this case. The size of the product is not standardized and only meets the manufacturer's standards.

Monolith

The most famous is Apple devices. These monolithic "Macs" are still one of the most reliable and beautiful products on the market.

The advantage of this situation is its compactness, that is, the smallest space occupied by the entire device. However, this is also its disadvantage. Such equipment is difficult to upgrade. Due to the lack of space inside the shell, it is impossible to change the packaging, make improvements, and install more powerful components.

This is why the entire house is actually not suitable for family use when the owner does not plan to upgrade. Therefore, they are often used in production. The housing is generally rectangular and made of metal. They are equipped with electronic components, and connection ports and various indications are located on the back and front of the case. They are installed in 19 racks, one above the other. In this case, the rear wall of the upper housing becomes the upper wall of the lower housing. Now, this component has become the main component for installing telecommunications equipment and servers.

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The overall block is the designer used to build the computer. In this case, the component is already installed in it. The owner of such a device can simply replace the RAM, processor or hard drive in it. But, for example, it is almost impossible to replace the motherboard. In any case, this will cause serious difficulties.

If the owner plans to change it to a more modern candy in a few years, they can buy a home candy bar because upgrading is difficult. But for organizations, monolithic blocks are convenient because they make it possible to quickly create several computer-equipped workplaces.

2. AT and Slim.

At the end of the last century, at the beginning of the computer era, PC cases were manufactured according to AT standards. Today, this is a thing of the past, and the ATX standard is now used. But on this basis, they created samples for Slim and Ultraslim. These are ultra-thin and ultra-thin shells. Their main purpose is to look stylish. Otherwise, they will not be very convenient because installing serious fillers in them will not work-the space is too small.

AT and Slim

This shell standard is very popular in Western countries, but not in Russia. The space saved by the manufacturer has attracted Western buyers. After all, you can put the computer system components on the table and the monitor on top of it.

Some of the most commonly used types of horizontal metal PC cases are:

Desktop computer (desktop computer) with a size of 533x419x152 mm;
Footprint (floor) 408x406x152 mm;
SlimLine (thin type), the size is 406x406x101 mm;
UltraSlimLine (ultra-thin) 381x352x75 mm.
3. The vertical (tower) metal casing of the notebook computer.

A computer case placed vertically in space is called a "tower" or tower. Experts believe that in this case, in order to quickly cool the PC, the components should be placed as easily as possible.

Vertical (tower) metal computer case

In this case, consumers will find the most convenient option for themselves. It may be the case of modern servers, or only for devices with typewriter capabilities.

Consider the most popular ATX vertical chassis in Russia:

They are also called "full towers". The size in this case is 200x600x1000 mm. There are 5.25" and 3.5" bays inside, the first of which is used to accommodate optical drives (4-9 can be), and the second is for hard drives (6-12). In addition, seven expansion cards can be placed in the tower. This is the sound card, receiver, etc.
In addition to the above, in this case, you can also place an ATX motherboard (standard size) so that you can assemble a server or a high-performance gaming computer. There will be enough space to accommodate various other equipment.

BigTower or "Big Tower". The size in this case is 190x482x820 mm. In addition to full towers, they can also provide full-size ATX motherboards, but there is nowhere to install other equipment. In this case, it can also be used to create a game computer.
These are the most famous and commonly used standard hulls in our country-the "middle tower". Their dimensions are 183x432x490 mm. This kind of case can accommodate power supply equipment, ATX board. RAM (2 slots) and hard drives (several) can be built-in. This is the most versatile case because it can be used to assemble office computers or powerful gaming PCs, or you can make a media center for your own home.
The size of this "tower" is 178x432x432 mm. The chassis is very small and can be assembled into a home computer or home theater. Such a body takes up very little space.
MicroTower is the smallest vertical metal enclosure. The size of this baby is even smaller. It is suitable for low-power devices with motherboards with built-in peripherals.
Manufacturing technology of sheet metal shell
Let us consider the various methods used to manufacture metal casings used to manufacture electronic devices.

Cold plate stamping.
The housing of the electronic equipment (CEA) is made by cold stamping sheet metal. Although this method has been used for a long time, it has not lost its relevance. Its essence is to use special stamps. It is used for the production of mass products and the start of mass production. The role of the mold is to form different parts of the body. For small batches and single products, this technique is impractical because of the high cost of manufacturing stamps.

Sheet metal processing.
Moreover, in many cases, the housings of electronic devices are made by sheet metal processing methods. This technology is used for the production of small batches of products. For example, the developer chose a specific metal housing design. Then, he needs to decide how to do it: commission a separate development based on certain requirements or use a ready-made model to make some adjustments for himself.

Choose the method of manufacturing the shell according to the batch size. When planning a large number of instruments, individual design and use of cold stamping methods in manufacturing should be considered. In the production of small and medium batches, it is worth using ready-made solutions. At the same time, the sheet metal processing of the material will help make necessary changes to the design during the production process, after which the product will completely correspond to the manufactured equipment.

Use CNC machine tools.
The housing of electronic equipment can also be produced on CNC machines (computer numerical control). This is a fairly popular method. With its help, small batches of cases and single copies can be made. It should be noted that the cost of such products is very low. It is believed that with this output, the use of CNC equipment is economically feasible. These machines are compact and do not require a large footprint, which makes manufacturing products cheap.

Bovendien kan het gebruik van CNC-apparatuur het aantal experts dat ervoor werkt, verminderen. Dit betekent dat de menselijke factor bij de productie wordt verkleind, waardoor het product van hoge kwaliteit is, maar de defecten daadwerkelijk worden geëlimineerd. Deze voordelen maken het mogelijk om de inrichting niet alleen te gebruiken bij de productie van kleinschalige behuizingen, maar ook bij de fabricage van producten met een groot volume.

Ergonomie en koeling
Eerder noemden we een van de belangrijkste functies van een computerkast: het afvoeren van warmte van het verwarmingselement van de systeemeenheid. De toename van het aantal ventilatoren kan oververhitting door specifieke koeling van pc-componenten niet voorkomen. De beste resultaten kunnen worden bereikt door de ventilator correct te plaatsen en zo de beweging van lucht in het apparaat te organiseren.

Het is niet nodig om het ventilatiesysteem dat op de pc is geïnstalleerd te beoordelen op basis van het aantal koelers. Met hun hulp wordt warmte van het verwarmingselement afgevoerd. Als het koelsysteem niet correct is geïnstalleerd, zullen de hete luchtstromen tegen obstakels of elkaar botsen, waardoor het onmogelijk is om de apparatuur te koelen.

Hieronder een foto van een relatief redelijk geconstrueerd ventilatieschema voor een metalen computerbehuizing. Na zorgvuldige inspectie treft u in de koffer één of meerdere langzaam draaiende koelers (aan de ingang) aan. Ze zuigen koele binnenlucht in de systeemeenheid. Achter (bij de uitlaat) is een kleinere en krachtigere ventilator geplaatst om de opgewarmde lucht uit te blazen. Met dit circuit kun je stuwkracht genereren. Daarom is het metalen lichaam een ​​koelturbine, waarin koude lucht het verwarmingselement binnenkomt, ze worden gekoeld en vervolgens leidt het systeem de verwarmde lucht naar buiten.

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De voorgestelde oplossing kan ook worden aangevuld met koelers nabij de zijwanden en de bovenwand. Ze moeten de lucht uitblazen.

Om een ​​systeem te creëren dat de componenten van de metalen pc-behuizing goed koelt, moet u daarom het volgende onthouden:

More fans does not mean better heat dissipation.
The movement of air in one direction must be organized, not divided into air streams.
From the school curriculum, you can know that warm air will always rise, while cold air will fall, so you should not place vertical system units horizontally.
Loose cables inside the device will hinder air circulation.
A fan with large blades and low speed will increase air flow.
The amount of air that the fan can blow into the chassis in one minute must be carefully considered.
Ergonomics and sheet metal housing cooling

This parameter is called CFM-cubic feet per minute. It must be ensured that the air in the enclosure circulates continuously. To calculate which fan can provide this function, you should:

Calculate the area of ​​the case. To do this, multiply its length by its width and height.
Calculate the CFM of the cooler.
For example, the volume of a 253x502x563mm box is 2.52 cubic feet. The air in the box should be changed every 2 seconds, so a 70 CFM cooler is required. Sometimes, you will find a PC with vents that cool the processor in the form of a tube on the side of the case. They are of little benefit, but they are more harmful because they create obstacles to the natural flow of air. They should be removed and fixed in the wire casing.

Stoffilters (zoals kanalen) kunnen de ventilator ook niet helpen om de componenten van de computer te koelen. Binnen 2-3 maanden na de installatiedatum zullen ze snel verstopt zijn met stof binnenshuis, dus hun prestaties zijn erg laag. Bovendien kan het door stof verstopte gaas de beweging van de lucht verstoren, waardoor het apparaat oververhit raakt. Daarom is de productiviteit van deze apparatuur laag.

De schroeven die vroeger alle pc-componenten ondersteunden, zijn langzamerhand verleden tijd. Tijdens het monteren / demonteren van de computer is een groot aantal schroeven onhandig in het gebruik. Iedereen die een systeemanalysator heeft geanalyseerd, weet dit.

Dit is de reden waarom fabrikanten lange tijd plastic knoppen en "bases" voor harde schijven hebben gebruikt om computertechnologie te voltooien.

In addition, clamps, plugs, additional fasteners, etc. are used, which makes the box more convenient. The ergonomic chassis helps you replace components and upgrade your computer internally and externally.

It is worth paying close attention to the cables located inside the chassis. The efficiency of cooling systems depends on their location. However, we must not forget the convenience of connecting new devices and devices.

Why contact us
We respect all customers and strictly execute tasks of any scale.

Our production facilities enable us to process various materials:

Non-ferrous metals;
cast iron;
stainless steel.
When completing the order, our experts will use all known metal processing methods. The latest generation of modern equipment can conform to the original drawings to the greatest extent.

In order to make the workpiece closer to the sketch proposed by the customer, our experts use universal equipment designed for jewellery polishing tools for particularly complex operations. In our production workshop, metal becomes a malleable material, which can be used to manufacture any workpiece.

The advantage of contacting our experts is that they meet GOST and all technical standards. In each stage of work, strict quality control is carried out, so we guarantee to provide customers with carefully implemented products.

Dankzij de ervaring van onze vakmensen is de output een modelproduct dat voldoet aan de meest veeleisende eisen. Tegelijkertijd vertrekken we vanuit een sterke materiële basis en richten we ons op de ontwikkeling van innovatieve technologieën.

We werken samen met klanten in verschillende regio's. Als u een bestelling wilt plaatsen voor metaalbewerking, staat onze manager altijd klaar om naar alle situaties te luisteren. Indien nodig kunnen we klanten gratis professioneel advies geven.

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