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Dhruv singhaniya
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What is Washing Machine and how does it work ? - Page 2 Empty Re: What is Washing Machine and how does it work ?

on Wed Jan 16, 2019 12:37 pm
Many other parts are plastic as well. Manufacturers receive raw plastic from which they fabricate parts in pieces about the size of a small ant, using them for machine components that do not bear weight and/or require extremely good rust resistance.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:38 pm
Such parts include the pump, the tub guards (which prevent your clothes from being thrown out of the spin tub into the wash tub or the cabinet area), and the agitator.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:38 pm
The transmission is generally made from cast aluminum, which arrives from the manufacturer in ingots—20 pound slabs of aluminum. Scrap parts are usually remelted and reused. Hoses, controls (timers, switches, etc.), and motors are purchased in prefabricated form from other manufacturers.

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Dhruv singhaniya
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on Wed Jan 16, 2019 12:38 pm
The manufacturing process is split into fabrication (making parts), sub-assembly (putting parts together to make components), and assembly (putting the components together to form the final product). The fabrication process comprises several different procedures, each specific to a particular type of raw material—sheet metal, plastic, or aluminum.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:38 pm
Once the constituent parts have been made, they are assembled; major sub-assemblies, or components, include the transmission, the pump, the spin and wash tubs, the balance ring, and the painted parts. Finally, the sub-assemblies are put together inside the shell of the washer, which is then complete.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:38 pm
1 Most sheet metal parts are formed by a machine called a press. This name is quite descriptive, as the machine actually presses (or squeezes) a piece of sheet metal between two halves of a mold called a die.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:38 pm
The metal will take the form of the space between the halves of the die. Because metal in parts shaped by only one die tends to wrinkle, crack, or tear, multiple dies are generally used to form each component. Where possible, the metal is fed directly from a coil into the press.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:39 pm
2 Plastic parts are formed in an injection molding machine, a metal mold with one or more cavities in the shape of the desired part. After being heated to its melting point, the plastic is forced into the mold under high pressure.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:39 pm
Next, water is passed through the mold to cool and solidify the part. The mold is then opened and the part pushed out by ejector pins. When you look at a plastic part, you often can see small circles created by these pins.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:39 pm
3 Aluminum transmission parts are formed into a rough shape in a die cast machine, which works much like an injection mold except that it does not use pressure. The molten metal is mechanically ladled into the mold and cooled.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:39 pm
The ensuing rough casting is then given its final shape by various machines which drill holes, shave excess metal off critical surfaces, or cut metal away from the part.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:39 pm
4 The transmission is assembled manually by workers who bolt, snap, or press (tight fit) several shafts and gears together. Workers then add a metered amount of oil and bolt the unit together.
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Abhishek
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on Wed Jan 16, 2019 12:40 pm
The working of the washing machine is quite high tech, and includes a set sequence of washing, rinsing, and spinning (plus a pre-wash if desired). During the wash cycle, the machine releases the detergent and fills the drum with water while moving the clothes around to make sure each item is thoroughly cleaned.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:40 pm
5 The pump is assembled automatically. Robots place the impeller and seals in the cover and body, and seal the pump. Some manufacturers use heat and others vibration (which generates heat) as a sealant.
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Abhishek
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on Wed Jan 16, 2019 12:40 pm
f there's one household appliance most of us simply could not do without, it's the clothes washer.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:40 pm
6 The tub parts are made in presses, and the sub-assembly is manufactured automatically. After being rolled into a drum shape, the side is welded. The weld is then smoothed out and the drum is placed on a unit called an expander, which stretches the tub into its final shape. A bottom is then welded onto the drum, and this weld is also smoothed.
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Abhishek
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on Wed Jan 16, 2019 12:40 pm
If you've ever been without your machine for a few days or weeks, you'll know just how hard it is to wash clothes by hand.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:40 pm
If the tub is stainless steel it is polished so it won't snag the clothes. Otherwise the tub is dipped in a solution called a ground coat and heated to about 1600 degrees until this coating hardens. If the tub will not be visible (the wash tub), the unit is done. If the tub will be visible (the spin tub), a finish coat is applied following the same procedure used with the ground coat; this final coat gives the tub either a white or blue color.
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Abhishek
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on Wed Jan 16, 2019 12:40 pm
Although clothes washers look pretty straightforward, they pull off a really clever trick: with the help of detergents, they separate the dirt from your clothes and then rinse it away. But how exactly do they work?
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:40 pm
7 The balance ring is a large weight that stabilizes the washer. Its outside structure is plastic, with a ring of metal melted into the plastic for strength. Cement is added and balanced precisely. This ring, which weighs more than twenty pounds, keeps the machine from "walking," or moving about, when it is in use.
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Abhishek
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What is Washing Machine and how does it work ? - Page 2 Empty Re: What is Washing Machine and how does it work ?

on Wed Jan 16, 2019 12:40 pm
The basic idea of a clothes washer is simple: it sloshes your clothes about in soap suds for a while and then spins fast to remove the water afterward. But there's a bit more to it than that.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:40 pm
8 Washing machine manufacturers use any one of several painting processes. One manufacturer uses steel that has been prepainted by the steel manufacturer. Although cheaper, this type of steel does not offer the best rust protection because the cut edges are not painted.
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Abhishek
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What is Washing Machine and how does it work ? - Page 2 Empty Re: What is Washing Machine and how does it work ?

on Wed Jan 16, 2019 12:40 pm
Think of a clothes washer and you probably think of a big drum that fills with water—but there are actually two drums, one inside the other.
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Dhruv singhaniya
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on Wed Jan 16, 2019 12:41 pm
Other companies treat their parts with various chemicals to clean and ready them before applying paint. In some cases, the paint comes in a powder with a flour-like consistency. Mixed with air and given an electrical charge, the powder is sprayed on the part, which is hung from an overhead conveyor and given an opposite charge so that it and the powder will attract one another.
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Abhishek
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What is Washing Machine and how does it work ? - Page 2 Empty Re: What is Washing Machine and how does it work ?

on Wed Jan 16, 2019 12:41 pm
The inner drum is the one you can see when you open the door or the lid. In a front-loading clothes washer, common in Europe, the drum stands upright.
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