Mechanical Engineering

The die casting process is used in many applications. Automotive parts are made using die casting, as well as Lighting, Electronics, Aircraft, Boats, Hardware, Speakers, Appliances, and many others. Die Casting is a metal injection process.

try baking soda and water made into a paste and scrubbed on the sticky parts...

please give me chemical composition of c45

Chemical composition in weight %: 0.42-0.50% C, <0.40% Si, 0.50-0.80% Mn,

<0.045% S, <0.045% P, 0.40% Ni, <0.40% Cr, <0.10% Mo, Cr+Mo+Ni<=063.

Note: Carbon steel. Austenitized at 850 oC.

Source: Website Saarstahl AG, Germany, 2007.

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u mean valve of a engine.....? here's the answer... when the crankshaft rotates,then with the help of timing gear the camshaft rotates.timing gears are the gears on crankshaft(pinion) and camshaft(gear). when the cams on the crankshaft rotates it lifts up the follower(during eccentric portion of the cam). follower is connected to a push rod which moves the rocker about a point. rocker presses the valve stem in avalve guide againt the spring pressure. the valve comes down from the valve seat. and our fuel air mixture rushes inside the cylnder. when the non eccentric portion of the cam on the camshaft comes valve stem moves up due to spring pressure. the timing gears are such that they maintain a speed ratio of two between them. it means camshaft has to rotate at half the speed of crankshaft. it is because a valve has to open and close once in every two revolutions of the crankshaft.

It is its boiling point, or 90.20 K, -182.95 °C, and -297.31 °F.

A DC motor is any of a class of electrical machines that converts direct current electrical power into mechanical power. The most common types rely on the forces produced by magnetic fields. Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current flow in part of the motor. Most types produce rotary motion; a linear motor directly produces force and motion in a straight line.

koons

Destructive and Non Destructive Testing:

Nondestructive testing or Non-destructive testing (NDT) is a wide group of analysis techniques used in science and industry to evaluate the properties of a material, component surface & subsurface without causing damage or effect to their future performance or properties. Non-destructive testing is used to detect abnormalities in physical, chemical or electrical characteristics.

In Destructive Testing, tests are carried out to the specimen's failure, in order to understand a specimen's structural performance or material behaviour under different loads. These tests are generally much easier to carry out, yield more information, and are easier to interpret than non destructive testing.

Destructive testing is most suitable, and economic, for objects which will be mass-produced, as the cost of destroying a small number of specimens is negligible.

crane hook is made of quenched & tempered alloy steel.

what are drawbacks for mechanical engeeners

A Bourdon Tube or a Bellows gauge

combining a turret punch press machine, with a laser cutting machine into one to allow versatility in possible sheet metal cutting options. check out amada's new line of turret/punch combo machines

Brake horse power is the amount of engine power which makes it to the wheels. This is different from the actual output at the engine.

If you are talking about a condenser attached to a steam turbine, then a vacuum is important because it extends the usefulness of the steam in the turbine. As you probably know, steam begins to condense back into water at 212 deg at atmospheric pressure. However, in a vacuum condition, the boiling and condensing temperature is lower. Because the condenser is under a vacuum, steam exits the turbine and enters the condenser around 130 deg. This results in more power (mega watts).

90lbs

Local cummins dealer or distributor.

Use wsl.cummins.com to find it.

Indolene is a form of gasoline used in testing because it is standardized and has no additives.

Indolene gasoline is used for the US Federal Test Procedure (FTP) to certify vehicles for emissions rather than commercial gasoline. Indolene fuel used in certification typically has a sulfur content below 50 parts per million (ppm). On the other hand, commercial gasoline sulfur content ranges between 30 and 1000 ppm throughout the US with an average of about 300+/-50 ppm.

Indolene gasoline results in reproducible tailpipe emissions from a test vehicle. Commercial gasoline results in a wide range of emissions. The emissions differences are attributable largely to the disparity in gasoline sulfur content.

source:

http://www.meca.org/galleries/default-file/sulfur.pdf

http://www.futurefueltechnologies.com/?page_id=42

gland condenser is a type of condenser in which steam which is coming from d turbine is used for the heating of demineralised water and then this water is sent to the boiler so boiling of hot water consumes less coal and thus we get benifit of it

Sealing steam is as the name says - it provides a seal for turbines that exhaust into a vaccum condenser, hence creating a better vaccum, and preventing non condensables from entering the system sealing is of two type say positive sealing and negative sealing used for perffect sealing positive used in hp side and negative in lp side.

Time = Distance / Speed "/" means divide Calculate the average speed then put it into the equation. For example: Time (hours) = 42 miles / 86 miles per hour Time = 0.49 hours Time = 29.4 minutes (60x0.49)

Too expensive to be practical. Existing technology has been established to be significantly more cost-effective. Too expensive to be practical. Existing technology has been established to be significantly more cost-effective.

gear box or speed reducer.

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