Mechanical

Investment Types of Casting Process It can cast very thin and complex features It offers excellent surface finish It offers excellent dimensional accuracy Can be used to cast all metals and alloys Investment Casting – Broad Classification Ceramic cell investment casting Plaster mould investment casting Mercast investment casting Plaster Mould Investment Casting Plaster mould investment

Static Balancing A system of rotating masses is said to be in static balance if the combined mass centre of the system lies on the axis of rotation, static vs dynamic balancing. Condition for static balancing : The net dynamic force acting on the shaft is equal to zero. In other words, the centre of

A machine has many moving parts. Some machines have balancing of rotating masses motion and some of them have reciprocating motion. If these moving parts are not in complete balance, inertia forces are set up which may cause excessive noise, vibration, wear and tear of the system. Thus, balancing is the process of designing or

In this type of optical comparator, a small plunger displacement is amplified by both mechanical and optical system. The amplification is first done by a pivoted lever and then by simple optical system. Construction details: The optical comparator consists of the following parts such as Pivoted lever Objective lens Scale Plunger Table and Base, and

Mechanical comparators are one form of linear measurement device which is quick and more convenient for checking large number of identical dimensions. Comparators normally will not show the actual dimensions of the work piece. They will be shown only the deviation in size, during the measurement, a comparator is able to give the deviation of

In this type of stoker, the fuel and air move in the same direction. In this type of stokers, the air entering the holes in the grate comes in contact with the raw coal. Then the air is mixed with formed volatile matter and passed through the ignition and then entered into the region of

In case of overfeed stokers, the coal is fed on the grate above the point of air admission. Working principle : In this type of fuel firing, the primary air enters the grate from the bottom. The air passing through the grate is heated by absorbing the heat from the ash and grates itself. So,