Thursday, February 19, 2009

Automotive Materials



Open Cell Polyurethane:


* Polyether, Polyester with densities from 1 pcf to 6 pcf with custom thickness from .040" to bun thickness.
* Low permeability foam

Poron®:

* High-density urethane foam with a low compression set with densities from 15 pcf to 30 pcf in very soft, firm, and very firm grades. Thickness ranges from .031 to .50 depending on the formulation.
* Silicone sponge and solid sheets with densities from 12 pcf to 30 pcf with thickness range of .031 to .50 depending on the formulation.

Closed Cell Sponge:

* EPDM, Neoprene, SBR, NBR, EVA, PVC, PVC/NBR with densities from 2.5 pcf to 22 pcf with custom thickness available.

Cross-Linked Polyethylene:

* Densities from 2.0 to 12pcf.

Silicone Sponge Sheet:

* Sponge available in soft, medium and firm grades.
* Solid sheet available in 30 -80 durometer.

Plastic Films/Sheet:

* Polyester, Noryl®, Lexan®, Nylon, Polystyrene, Mylar®, ABS, Kapton®, Teflon®.

Metal Films:

* Copper, Aluminum, Metalized Polyester, Brass

Insulating & Gasketing:

* Fishpaper, Cork, Nomex, ITW Formex®, Armstrong Fibers®.

Pressure Sensitive Adhesives:

* Unsupported (free film), Double coated (carrier), Transfer tapes, Laminating Adhesives, in Acrylic or Rubber.
* Ultra clean, Gas resistant, VHB, LSE, HSE, High Temperature, Conductive
* Available on most products.

Sheet Rubber:

* Available in 30 -90 durometers and thickness range of .031" to 1".

Polyurethane Filter Foam:

* Reticulated 10 pores per inch (ppi) to 100 pores per inch.

Acoustical Composites:

* Acoustical Barrier Composites
* Vinyl: Perforated and solid in various colors with non-stock colors requiring minimums.
* Non-Woven plush fabric, Urethane films, Metalized films, and Polyester films.
3M:

* Bump-on®, Foil tapes, VHB, Electrical Tapes, Scotchmates®, Foam Tapes, Viscoelastic Dampening Polymers, Safety Walk®, Thermo-Bond Films, Thermally Conductive Materials, etc.

Dash Controls


Dash Controls

The dash board, behind the steering wheel displays the control panel of the car. Duplicate fragments of the control panel are found in the interior of your vehicle, such as automatic door locks, extra light switches, etc. Many functions of the car are carried out through the dash board, like turning on the headlights, windshield wipers, horn, turn signals, air conditioning, cassette player, etc. It also contains all of your gauges; gas, temperature, tachometer, etc., which enables the monitoring of the operating conditions of your engine and charging system, fuel level, oil pressure and coolant temperature. It ensures that all the controls are within the drivers reach.


Diesel Fuel Injector


The diesel fuel injector is a pressure valve, but it has specific components that allow it to disperse the diesel fuel in set patterns, depending on the design of the valve. Diesel fuel injectors receive the pressurized impulse from the diesel fuel pump, and allow the fuel to enter the combustion chamber when it is needed. If the diesel fuel injectors get clogged, engine performance suffers.

Diesel Fuel Pump

Diesel fuel pumps inject a specific amount of fuel during a specific time, and control the injectors by the pressure waves of the fuel that they pump. The diesel fuel pump has mechanisms in it, which allows more or less fuel to be pumped. If less fuel is pumped into the cylinders, this slows the engine, and vice versa. It thus also regulates the speed. A series of gears link them to the crankshaft or the camshaft, allowing the fuel pump to be driven directly by the crankshaft of the engine. Some may be belt or chain driven.

Differential

The differential is the thing that works both drive axles at the same time, but lets them rotate at different speeds so that the car can make turns. When a car makes a turn, the outer wheel has to turn faster than the inner wheel, due to the difference in the length of the paths they take. The differential is located between the two wheels, and is attached to each wheel by a half-shaft rotated through a bevel gear. Four-wheel drive cars have a separate differential for each pair of wheels. A grooved, or splined, axle side gear is positioned on the splined end of each axle. The side gears are driven by "spider" gears, which are little gears mounted on a shaft attached to the differential case. As it is supported by the differential case, the side gear can turn inside the case. The differential case can be turned, revolving around the axle gears. The differential pinion (a pinion is a small gear that either drives a larger gear or is driven by one) shaft turns the ring gear, which is fastened to the differential case. The propeller shaft (drive shaft) connects the transmission output shaft to the differential pinion shaft. The turning differential case is mounted on two large bearing holders. These bearings are called carrier bearings. The propeller shaft rotates the ring gear pinion, and the pinion turns the ring gear. The ring gear then turns the differential case and pinion shaft, but the axle side gears will not turn. By passing the differential pinion shaft through two differential pinion gears that mesh with the side gears, the case will turn and the axle side gears will turn with it. During turns, the side gears turn at rates dictated by the radius of the turns, and the spider gears then turn to allow the outer wheel to turn faster than the inner one.

Drive Shaft

The drive shaft, or propeller shaft, connects the transmission output shaft to the differential pinion shaft. Since all roads are not perfectly smooth, and the transmission is fixed, the drive shaft has to be flexible to absorb the shock of bumps in the road. Universal, or "U-joints" allow the drive shaft to flex (and stop it from breaking) when the drive angle changes. There are two types of drive shafts, the Hotchkiss drive and the Torque Tube Drive.

Drive Wheel/Axle
The drive wheel is the end of the axle shaft; it has lugs protruding from it. The lugs are separate pieces that are mounted in the drive wheel. The drive wheel bolts onto the brake drum and the wheel rim of the car itself. It is usually a disc about six or seven inches in diameter. Occasionally the drive wheel and the axle shaft
are all one piece.

Dynamic Wheel Balance

"Dynamic" balance is the equal distribution of weight on each side of the vertical centerline of the wheel and tire assembly. Unbalance on either or both sides of a plane of rotation, called dynamic unbalance, causes the wheels to bounce, resulting in flat spots on the tire tread and worn ball joints, tie rod ends, steering gears, and shock absorbers. Dynamic unbalance in the front wheels will cause them to wobble.

Air Conditioner Maintenance


Air Conditioner Maintenance


We all need Air Conditioners in our cars, but there is a negative side to this too. CFC based refrigerant causes terrible damage to the ozone layer. Our mechanics will have to make sure that there are no leaks, and fix them if there are, before they can add any R-12 to our air conditioning systems. Naturally, this cost will be passed along to us. Recovered refrigerant will be recycled. Capturing refrigerants and restoring them for reuse is not only environmentally sound, but mechanically safe. Each molecule of CFC in the atmosphere has a 120 year life that will destroy tens of thousands of ozone molecules. This means that a CFC molecule released in 1991 will still be damaging the ozone layer in 2100.

Air Ducts

The air ducts control the passage of hot or cold air into the interior of the car. They are operated by a control on the dash, either manually or automatically.

Air Pump

The air pump pumps compressed air into the exhaust manifold and in a few cases to the catalytic converter. The oxygen in the pressurized air helps to burn quite a bit of any unburned hydrocarbons (fuel) and thereby converts the poisonous carbon monoxide into good old carbon dioxide. A belt from the engine drives the air pump. It has little vanes (thin, flat, curved fins) that draw the air into the compression chamber. Here, the air is compressed and sent off to the exhaust manifold where it speeds up the emissions burning process. Stainless steel nozzles are used to shoot the air into the exhaust manifold, because they will not burn. Some engines use a pulse air injection system. Pulses of exhaust gases are used by the system to operate an air pump that delivers air into the exhaust system.

Alternator or Generator

The chief source of power of the electrical system is the alternating-current generator, or alternator. Its shaft is driven by the same belt that spins the fan and it keeps the engine running. It converts mechanical energy into alternating-current electricity, which is then channeled through diodes that alter it to direct current for the electrical system and for recharging the battery.

Ammeter

The device is used to determine whether the electrical system is charging, discharging, or staying "level". The gauge should dip when the engine is started, then go up as the alternator re- charges the battery. After a few minutes, it should go to its middle position.

Automatic Transmissions

Automatic transmission has made driving a lot easier to drive and than manual transmission. The best part is that you don't have to use a clutch pedal or gearshift lever. An automatic transmission manages all of this on its own. Automatic transmissions automatically change to higher and lower gears with changes in the car's speed and the load on the engine. These transmissions are also aware of how far down you have pushed the gas pedal, and shift accordingly.

The output shaft turns the governor. The rolling of the governor is directly proportional to the speed of the car. The centrifugal force from the governor sends the oil is sent from the pump to the shift valves. The shift valves then move out sending the transmission fluid to the gear shifting mechanisms in the transmission. When the car slows down, the valves move in and send the transmission fluid in the opposite direction, thus changing the gears. The different gears are selected by routing the pressure to the clutches and brake bands.

Automotive Parts & Components

Auto Parts:- We are the Exporter and manufactures of Auto parts & components. Our collection of auto parts and components are made of high quality raw materials and have a safe and reliable structure.this are Competitive in prices these can also be designed as per the client's requirements and the industrial demands so that the best can easily be provided to the client.

Axle-Shaft-Big:- We are the leading manufacturers of steel Axle-Shaft-Big which ensure superior quality and durability to the users. These Axle-Shaft-Big have got high crack proof nature and abrasion resistivity, which provides them a longer life. We also provide this range to our clients as per the designs and specifications provided by them.

Die Moulds:- Our company have ability to design and manufacture the wide range of die and moulds patterns to suit the requirement of our clients, our extensive knowledge and infrastructure we can make this possible to engineering perfection. Our company offers these precision moldings & dies at market leading prices.

Ferrules:- Our company also manufactures Ferrule and Metal Ferrules that are offered extensively applicable for fastening, joining, or reinforcement and consist of a circular clamp that hold together and attach fibers, Wires and allied parts. They are highly durable and are used in many industries. These entire specifications can be customized as per the preferred specifications.

Flanges:- We offer our clients the highest grade of Flanges that are use in conformation to the latest market demands. The flanges are used in an assortment of industrial purposes and are mainly used to connect pipes. These are considered as an important entity to support mechanical parts. The flanges available in our company are customized in designs, sizes & shapes.

Linear Bushes:- Our linear bushes are manufactured for special purpose material which provide long lasting services and offer cost effectiveness to our clients clients. They are mainly used for balancing the weight and size ranges are available also Used in different industries, these products are also available in configurations, according to our clients’ specifications.

Pinions:- We manufacture high performance pinions for use as automatic control of valve in industry. Our pinions are made up of bar metal, The metal used in manufacturing depends upon the clients requirement.

Sprocket:- We are engaged in manufacturing the sprocket in a wide range that is Manufactured from high grade of raw material these are compatible with most demanding applications. sprocket are essential for precise timing to achieve maximum efficiency of machines. it design and sturdiness of our range of sprockets enhances its applications for two and three wheelers. Our supplied cam sprockets are available in various design and sizes as per clients specifications.

Square Drive Adaptors:- We offer and manufacture square drive adaptors that are used as a converter for permitting use of sockets with impact wrench of different drive sizes higher or lower. We provide these in different ranges and sizes that square drives of adjacent increasing or reducing combinations of male and female drives.

Automotive Industry Standards




Automotive Industry Standards Committee (AISC) is set up under Central Motor Vehicles Rules -Technical Standing Committee (CMVR - TSC) by Ministry of Shipping, Road Transport & Highways,(Dept. of Road Transport & Highways) (MoSRT&H (DoRT&H)) to review the safety in the design, construction, operation and maintenance of motor vehicles.

AISC reviews and formulates Automotive safety standards and recommends these standards to CMVR-TSC for implementation to enhance safe transportation in the country.


The composition of the AISC is as under:

Ministry of Shipping, Road Transport & Highways
( Department of Road Transport & Highways) (MoSRT&H (DoRT&H))
Ministry of Heavy Industries & Public Enterprises
(Department of Heavy Industry) ( MoHI&PE (DHI))
Ministry of Small Scale Industries
(Office of the Development Commissioner, SSI) (MoSSI)
The Automotive Research Association of India (ARAI)
Central Institute of Road Transport (CIRT)
Indian Institute of Petroleum (IIP)
Vehicle Research and Development Establishment (VRDE)
Society of Indian Automobile Manufacturers (SIAM)
Tractor Manufacturers Association (TMA)
Automotive Component Manufacturers Association of India (ACMA)
Bureau of Indian Standards (BIS)


Director, ARAI is the ex-officio Chairman of AISC. ARAI is the secretariat to AISC and Mrs. Rashmi Urdhwareshe, Deputy Director, is Member Secretary.

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