Daily Archives2017 June 21

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Carborundum is the other name for silicon carbide. This compound as the name suggests is made up of carbon and silicon elements. SiC is the chemical formula for this compound. It occurs naturally in the form of moissanite, which is a mineral compound. It is presently being used as abrasive which is the reason for its mass production for several years.

Bonding small granites help to form hard ceramics by the process of sintering. The ceramics are used in car brakes, ceramic plates, bulletproof vests, and car clutches. Even the light emitting diodes are incomplete without these ceramics. These are also used in the semiconductors of the high voltage areas. With the help of Lely process, larger crystals of carborundum are made which can be cut into structures of gems.

Details about the compound

Carbide is hard bonded by a covalent bond with silica that has been reduced by the carbothermal process. The resultant formed is in groundmass state or finely powdered that depends on the exact reaction situation.

Properties of the compound

Several properties of carborundum materials are there. The melting point of silicon carbide is high. The thermal conductivity is high and hence the thermal expansion is lower. Silicon carbide is hard and is resistant to corrosion. It is greatly stiff. The properties of carbide are interesting because of the varied semiconductor features.

Silicon carbide and its commercial grading

These are used in the engineering applications commercially. There are primarily three forms of these compounds- one is the nitride bonded carborundum, the second one is the reaction bonded carborundum, and last but not the least is the sintered carborundum.

The types of silicon carbide are many. They are mainly siaion bonded silicon carbide and the clay-bonded ones. Clay-bonded silicon carbide is useful for refractory applications depending on the needs of manufacturing.

Benefits of carborundum in electric voltage purposes are many. This compound has a greater voltage acceptance than silicon. Switches made out of them can be placed in series. These are useful for several high voltage requirements. It minimizes the complexity of the system. The best part of these compounds is that they are cost effective and can be relied on. It can be placed in the higher temperature areas that have 400 degree or more which is much more than silicon. These also reduce the cooling costs and the complex issues that are associated with the high voltage areas.

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Source by Urvi Tandon

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First of all, as with fitting all new or used car parts, Always remember safety! If you raise the vehicle on a jack Always support the car with axle stands! The one thing to be careful about when removing the wires to the starter. There is a red wire fitted from the battery to the rear of the solonoid, this wire is live & if it comes into contact with anything which is earthed, you will have problems. So be careful, a good rule of thumb is to tape up any wire ends with electricians tape or disconnect the battery completely but only if you have your radio code.

The two lower starter motor bolts are best accessed from the underside of the vehicle as these two lower bolts are located on the underneath of the starter motor. You will find the starter motor located in the centre of the engine at the rear under the air filter box and above the exhaust front pipe. The starter is connected to the car battery with red wire you must disconnect this wire by undoing the 13mm nut and washer from the rear of the starter solonoid, then you will find a 10mm nut and washer securing the wires on the smaller terminal. After removing the wires from the rear of the starter solonoid you will then need to loosen the two 13mm bolts that secure the starter motor to the gearbox. (A good tip is to always remove the lower bolts first to save the weight of the starter pulling downwards with gravity making the top bolt appear tight to the very last thread)

The lower bolt can be easily located and undone from the underside of the car where the top bolt is not quite as accessible, the top 13mm bolt is best accessed from under the bonnet at the rear of and below the vehicle battery it is easier to access this bolt with a 13mm socket.

To refit your new or used starter is a simple reversal of the removal procedure. After finally reconnecting the vehicle battery the starter fitting is complete. Finally expect to pay around £25 for a good second hand used unit from a Car Breakers Yard.

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Source by Amy L Cook

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Why would anyone want to drive a sedan? Well I think anybody who owns a sedan would agree that needing more space is the main reason people choose to drive sedans. Sedans are known to be the family type of car, the type of car you can throw your children, dog and luggage in with room to spare. So it is the practicality of the vehicle which makes it a winner with families and people who enjoy road trips.

When one is single it is easy to fit all of your belongings into a car but when you have a family the task becomes a bit more tricky. Sedans seat a minimum of 4 people comfortably with ample space in the back for cargo. Even though a sedan has different compartments for passengers and cargo the back seats can often be dropped in order to load more cargo when passengers do not need the seating. This makes it very convenient for loading large items and for rearranging a larger number of smaller items to fit in the space.

One of the main attractions when looking to buy a sedan is the ample cargo space however it does not mean that great design and luxury needs to take the back seat. Sedans come in different sizes and models. You can find a very inexpensive small to medium-sized sedan or a larger luxury sedan the choice depends on what your needs and budget are. Both the small to medium size and the luxury sedans have their advantages and disadvantages.

Fuel efficiency is also another point which many buyers consider before buying a car. Sedans which are small and midsized are more efficient than the luxury versions. A luxury sedan is bigger and because of its size it uses more fuel, so if you want a family car which is economical then I would suggest going for a small to medium size sedan. The larger luxury type sedan also has a more powerful engines which is needed because of the weight of the sedan.

Another disadvantage of driving a bigger sedan is that finding parking becomes really difficult. This type of vehicle is perfect for when used to take weekend breaks with the family but can be impractical when needing to spend lots of time driving in cities. Smaller to medium size sedans offer you and your family the comfort of driving in a spacious car while still allowing the driver ease of motion and flexibility.

When buying a sedan your primary concern is buying a car which has enough space. Whilst buying a luxury car is always a question of personal taste and financial resources, for a majority of people easy handling and fuel efficiency are still major concerns when buying a car which is why the small to medium size sedan’s are perfect for a small family. There are many makes and models of family, sports and luxury sedans on the market. Spend some time doing some online research and you are sure to find a sedan which suits your needs.

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Source by Gert Demsky