Wednesday, July 27, 2011

The Benefits of Using Light Covers

Light covers are becoming a selling hit in America and in other countries around the world. Because of their low price, simplicity and effectiveness, people are buying them for their homes and offices, warehouses, restaurants and beauty salons. Because you are probably wondering what is so good on them that they are so popular, I will present you some benefits of using covers for lights.

Instant room makeover

Covers for ceiling lights can completely change the appearance of your room in just few minutes. In case you have just bought new furniture and you need to harmonize other items in your apartment with it, covers for lights are a perfect solution - all you need to do is install them and the room will look completely different. Many people are wondering how it's possible to entirely change the rooms just by changing the light covers - believe me, it's possible, thanks to the composition of light covers.

Different colors, sizes and patterns

You can buy regular (white) cover for light (size 24" x 48") if you only want to use it in warehouse. But if you would like to buy cover that will make your home or work space alive, you will need to find colored ones. They can be bought in several different colors, patterns and sizes. Most people buy yellow light cover and patterns like mimic sky and balloons are becoming more and more popular. You will also be able to find the light cover of appropriate size for your intentions with it. Probability that you won't find suiting cover for light with so many great offers on the market is minimal.

Cozy and relaxed environment

Besides the fact that covers for lights look good, they also have a great ability to set a good mood. They make people feel relaxed and cozy, all thanks to the pleasant light they are producing.

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Saturday, January 31, 2009

Difference of forged and cast in iron (cast iron, cast wheels, forged steel, etc.)

The best answer so far:

Forging uses intense heat and pressure to transform a [solid} slug of alloy material into the final shape of a wheel. Forged aluminium is about 300 per cent stronger than cast aluminium, yet less material is needed to produce the same "cast alloy wheel", which results in a lighter product. Because of the basic limitations inherent in forging, most forged wheels are two or three piece units. In two-piece construction, a centre is forged and welded or bolted into a spun or stamped outer rim. In a three-piece wheel, the centre is bolted to an inner and an outer rim half. This stands as an advantage of being easily customisable for a variety of widths and offsets.

Casting is a relatively inexpensive way to produce a high-quality, fairly strong alloy wheel. There are two methods used. One, system is known as gravity casting... whereby the molten material is poured into a mold and allowed to cool. These molds are usually made by machining a piece of material on CNC machine equipments to produce a wheel that only requires minor finishing (like drilling or possibly trimming of some excess metal) to be considered complete. The other and better system used is the low pressure or negative pressure casting. Here instead of pouring the molten material into the mould, the molten alloy is drawn up into the mould using a high-pressure vacuum. This eliminates much of the trapped air found in gravity casting process, producing a stronger wheel that is less porous than a gravity-cast one.