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November 10, 2022

Purpose of Die Casted Aluminum Heatsinks in 2022

Filed under: Aluminum Casting Parts — Tags: , , , , , — admin @ 12:00 pm

Purpose of Die Casted Aluminum Heatsinks
Aluminium is the ideal raw material to be used in making heat sinks because this part should be very durable. Aluminium is known to be a more durable metal compared to other metals including steel. At the same time, it is very abundant and easy to acquire which makes it a cheap material as well. Aluminum Heatsinks are used in electronic products and even appliances. Its purpose is to divert the heat produced by the electrical wires from the other more sensitive parts of the product. In other words, it is used as a safety feature to insure that the electrical device or appliance work perfectly and do not overheat.
Aluminum Heatsinks are used in many products all over the world which means that they are needed in large quantities at any given time. To produce them in an efficient and fast manner, the process known as die casting is used.
There are just three simple steps in die casting Aluminum Heatsinks. The first step is to take the aluminium bar and liquefy it by heating the bar. Once the aluminium is turned to liquid, the next step is to inject it to moulds or castings so that it will take on its proper shape. When the casting cools, all that is left is to polish it and a few finishing touches.
Die casting can create consistent results in a fast amount of time. At the same time, it is a relatively cheap process which makes it a very popular method in making not just heat sinks, but other aluminium parts as well.

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November 3, 2022

Aluminum Lighting Fixtures that work for you in 2022

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Aluminum lighting fixtures are at work for you

Whenever your car stops at a red light, chances are one of the commonplace, yet unnoticed, aluminum lighting fixtures has just served well in keeping order in your daily life. Indeed, street traffic light housings are not the only applications of aluminum lighting fixtures because of the many benefits offered by these die cast products.

For some time in the past, the production of lighting fixtures was a labor-intensive process, requiring the lengthy and laborious process of welding different pieces together. Naturally, this process is also costly and imposed limits on the shapes that could be designed. However, with the advances in die casting technology, aluminum lighting fixtures have been developed. Through die casting turning out products that are already in net shape, mass-production bringing in economies of scale has been made possible. The less-expensive aluminum lighting fixtures could likewise be designed into any desirable shape and powder-coated for a good-looking finish.

Aluminum’s light weight also contributed to shipping cost reduction, making these products an attractive option vis-à-vis their steel counterparts which could be heavier by as much as one-third. While plastic lighting fixtures would be lighter, these would not last as long as the aluminum lighting fixtures. This longevity is brought about by the superb thermal properties of aluminum which likewise enable its applications in various lighting requirements especially when high temperature bulbs are used. Common applications for aluminum lighting fixtures in addition to traffic light housings include those for garage lighting, hanging lights, airport runway lights and video camera lights.

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    October 27, 2022

    Various Forms of Aluminum Castings in 2022

    Filed under: Aluminum Casting Parts — Tags: , , , — admin @ 12:00 pm

    Various Forms of Aluminum Casting
    Aluminum is considered versatile, first and foremost because it is one of the only metals around that can be cast using all sorts of casting processes. Die casting, sand casting, plaster casting, continuous casting, investment casting and permanent mold casting, in this case, all fall under aluminum casting. Squeeze casting, lost foam, and hot isostatic pressing are also some applications associated with the process.
    When deciding on which process of aluminum casting to use, one must take into consideration the cost of each type and the quality of material that it will yield. Many aluminum alloy castings are made using the above processes, but the difference in results are great and many in number. For example, when die casting, air can be trapped in the casting and thus results in porosity. It cannot be eliminated, and aluminum die castings are thus lower in strength than mold castings.
    Die casting is mostly catered towards aluminum alloys because it is considered the best material for the process, and it is easy to obtain. It is also the most popular aluminum casting process and is good for mass production of small, detailed parts. Millions of copies of alloys are produced to serve as parts for various machines and tools, seen everyday in one’s life. Many house tools are made using aluminum die casts, and many structures outside also require similarly small parts. Permanent mold casting, on the other hand, is better suited for much larger parts and thus yield in stronger material for much bigger mechanical structures.

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    October 20, 2022

    The Basics of Cold Chamber Die Castings in 2022

    Filed under: Aluminum Casting Parts — Tags: , , — admin @ 12:00 pm

    The Basics of Cold Chamber Die Castings
    Cold chamber die castings are a process of die casting that use, instead of a hot chamber, a cold one. When starting the process, the molten metal is taken from the crucible and then inserted into a shot sleeve. Afterwards, a hydraulically operated plunger pushes the molten metal into the die. In order to minimize the shrinkage that usually occurs during silicification, as many material as possible is forced into the die cavity. Injection pressures usually have to reach over 10,000 psy or 70,000 KPa in order for the machine to function the way it should.
    Cold chamber die castings are usually needed when the alloy is not eligible for use in hot-chamber machines for a variety of reasons. Such metals that require the cold chamber include aluminum, copper, zinc and magnesium alloys. Beforehand, the materials must be melted using a furnace. The problem with using cold chamber die castings is that the cycle time is a lot slower, since the molten metal needs to be transferred to the cold-chamber machine from the furnace.
    When die casting, the dies needed are made out of steel because typical cast iron cannot take high pressures. This can serve as another setback to using the cold chamber, for the dies end up being very expensive, since steel is a costly metal. The dies can contain multiply cavities, or just one mold cavity, and there must be two dies – one for separation, and one for ejection of the final product. Many kinds of cold chamber machines are available with various features, but all of them function at maximum efficiency.

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    October 13, 2022

    The Basics of Die Casting Alloys in 2022

    Filed under: Aluminum Cast Parts Alloys — Tags: , , , — admin @ 12:00 pm

    The Basics of Die Casting Alloys
    Die-casting is very similar to permanent mold casting, only that the metal which is injected into the mold undergoes higher pressures which amount to 10-210Mpa (1,450-30,500) psi. Because of this, the surface of the die-cast is very good; the dimensions are also much more accurate at 0.2% of casting dimension.
    Die-casting may be done in two ways, either using a cold chamber process or by using a hot chamber process. Both differ in the time exposure of the melt which certain metals require either more or less. Cold chamber processes are usually used for aluminum and copper, also including its fellow die casting alloys. The metal is placed in the cold chamber for each shot and possesses less time exposure of the melt. Hot chamber processes usually are used for metals that have low melting points and high fluidity. This includes zinc, tin and lead. The die cavity is placed permanently in the molten metal. The inlet port of the pressurizing cylinder is uncovered as the plunger moves to its opening position. This allows a different charge of molten metal to fill the cavity.
    Aluminum, Zinc and Copper are the die casting alloys that are mostly used in die-casting for various reasons. Die-castings are limited from 20kg to a maximum that is dependent on the metal. Large castings usually have greater porosity problems because of the trapped air and the premature solidifying of the die-cast cavity. In essence, many things must be taken into account when performing die-casts in order to ensure the quality of the metals. Die casting alloys ensure good quality and a great finish.

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