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Washing Machine Background Mechanical washing machines appeared in the early s, although they were all hand-powered.
Early models cleaned clothes by rubbing them, while later models cleaned clothes by moving them through water. Steam-powered commercial washers appeared in the s, but home washing machines remained entirely hand-powered until the early s, when several companies started making electric machines.
The Automatic Electric Washer Company and Hurley Machine Corporation both began selling electric washers inwhile Maytag offered an electric wringer washer in InBendix offered the first fully automatic washing machine, and by spin-dry machines overtook the wringer types in popularity.
Many models with many varying features are now available; however, with a few exceptions, only the controls are different. The only difference between the washer in your home and the top-load washers in the laundromat is the ruggedness of construction.
The washing machine operates by a motor, which is connected to the agitator through a unit called a transmission.
The motor and transmission are near the bottom of the machine, while the agitator extends up through the middle of the machine. The transmission is similar to the transmission in your automobile in that it changes the speed and direction of the agitator.
In one direction agitatethe transmission changes the rotation of the agitator and spin tub—the inside tub with small holes in it—into a back-and-forth motion. When the motor is reversed by the controls spinthe transmission locks up and the agitator, transmission, and spin tub all rotate as a unit.
Without the transmission changing the speed or direction, the unit uses centrifugal force to remove as much water from the clothes as possible. The motor is also connected to a pump. When the motor is moving in the spin direction, the pump removes the water from the tub and discards it through the drain pipe.
Models designed for use in other countries offer different features. One component required on all models sold in England and possibly soon in the rest of Europe is called the lid lock.
Normally when the lid is raised the washer must stop for safety reasons. However, in England, when the washer is operating the lid must be locked closed. Raw Materials Many parts of a washing machine are manufactured from sheet steel, usually coated with zinc to improve rust resistance.
The steel manufacturer supplies the metal in a coil, which allows the material to be cut to size with minimum waste or automatically fed into the forming process. On some models made by Speed Queen, the spin tub is made of stainless steel.
All other models use a steel called enameling iron designed for a porcelain coating. For the wash tub, which isn't visible unless you open the machine cabinet, enameling iron with a porcelain coating is generally used. Whirlpool is the exception, using plastic instead of enameling iron for the outer wash tub.
Many other parts are plastic as well. 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 areaand the agitator.
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.
The Manufacturing Process The manufacturing process is split into fabrication making partssub-assembly putting parts together to make componentsand 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.
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.
Fabrication 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.
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. When this is not possible, the metal is cut to length and manually or, with larger parts like the cabinet, automatically placed into the die.
After being heated to its melting pointthe plastic is forced into the mold under high pressure.
Next, water is passed through the mold to cool and solidify the part.Purchase research paper washing machine.
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of his research papers under the name Fuzzy logic or Fuzzy sets [1, 2]. washing machines, elevators, metro and company operations. Advancements in In contrast to the previous studies, the washing machine discussed in this paper has more inputs and outputs for. Purchase research paper washing machine. History of english language essay variety 2 part question essay example essay essentials with readings book. International Journal of Emerging Engineering Research and Technology V3 I4 April 30 Design of Washing Machine for Cleaning of Small Components Tandale P, Shivpuje S, Ladkat S, Simran K ABSTRACT This paper provides a simple portable wash machine designed for cleaning of small components. The paper presents the design of washing.
Research Paper on “Innovation in Design of Washing Machine The research relates to the field of machinery, and more particularly relates to a foot-saving washing machine.
There are electricity washing machine, washing machine on the market can be divided according to size with. The object of washing machine is the wool conglomeration-like dust samples with other impurities.
This paper presents the design principle and operational performance analysis of wool washing machine, its design parameters and product quality has been verified to be improved by the experiment testing. Research Papers words ( pages) Internet Essay - Internet Ad #1 1) Tide 2) This series of ads shows all of Tide’s laundry detergents which include liquid, powder, powder with bleach, powder with bleach alternative, tabs, high efficiency, and Tide kick.
The paper introduces the concepts of MDI and reviews how Marketing Innovation and design have influence the present day washing machine.
It traces the invention, innovation and design changes over the product life cycle and analyses various influences that have altered the design colour, shape and functionality of the washing machine.
International Journal of Emerging Engineering Research and Technology V3 I4 April 30 Design of Washing Machine for Cleaning of Small Components Tandale P, Shivpuje S, Ladkat S, Simran K ABSTRACT This paper provides a simple portable wash machine designed for cleaning of small components.
The paper presents the design of washing.