Thermosal dyeing machine, 12-Color printing machine, Loop steam machine, Sanforizing Machine, Peach finishing machine, Raising/Brushing machine, Inspection machine,

                 Thermosal dyeing machine

Thermosal dyeing machine: Thermosal dyeing machine is used to dual purpose both the C.P.B and thermosal process.

          Principle parts:
                  1. C.P.B
                  2. Thermosal
                  3. Dryer

   Figure: Thermosal dyeing machine

                                      12-Color printing machine

12-Color printing machine: Printing is a process which various design is printed on the cloth. In 12-colour printing machine 12 colors can be printed at a time as named so.

                 Main parts:
                     1. Tension roller
                     2. Blanket
                     3. Screener
                     4. Dryer

Figure: 12-Color printing machine

                                                 Loop steam machine

Loop steam machine: Loop steam machine is used to fixed the color at temperature reactive print temperature 105°C and pigment print temperature 150°C.Steam is passed through various steam line to heat the chamber and the cloth stay in the chamber like a loop for a certain period. For this cause this machine is called loop steam machine.

                     Main parts:

                           1. Rollers
                           2. Steam chamber

                                         Figure: Loop steam machine

                                                Sanforizing Machine

Sanforizing Machine: Sanforizing (sometimes referred to as mechanical shrinking) is a process in which the fabric is a process in which the fabric is forced to shrink width and /or length wise, creates a fabric in which a residual tendency to shrink after subsequent laundering is minimal. In sanforizing machine the cloth pass through the rubber roller and steam is sprayed from the steam line. By creating pressure by the help of roller cloth is compressed to control the shrink.

                                                 Figure: Sanforizing Machine

                                       Peach finishing machine

Peach finishing machine: Peach fishing machine is used to improved smoothness of cloth in one or both sides. Generally, this operation is done after bleaching before dyeing. In this machine there are four rollers covered by emery paper improving the smoothness of the cloth. There are four motors used to rotate the roller. The motor and roller are connected by gear and chain. Pressure is created by 8 cylinder and 4 rollers in hydraulic process.
Generally 320-150 numbers emery paper is used here for smoothing cloth.

                          Figure: Peach finishing machine

Application:
To smooth the surface of the cloth

                                            Raising/Brushing machine

Raising/Brushing machine: Raising machine is used for brushing cloth as the shape of blanket. In this machine there are 30 rollers arrangement. Each roller covered with raising fillet and the fillet
having a width of 1”.In this arrangement one roller raising teeth is clock wise and other is anticlockwise. The rollers rotate by the help of motor, gear in clockwise and anticlockwise. The cloth pass through the rollers and thus brushing operation is done.

   Figure:    Raising/Brushing machine

Application:

For brushing the cloth

                                             Inspection machine

Inspection machine: Inspection machine is used to check the defect and fault of the cloth before and
after processing.

        Types:

               1. Gray Inspection Machine
               2. Finished Fabrics Inspection Machine

Figure: Fabric Inspection Machine

Figure: inspectionmachine

Gray inspection: The grayinspection m\c is used to check the defect of gray cloth. It consists of some rollers rotatingby the help of motor, gear and chain reversely.The cloth passed through roller and inspectionpanel. In inspection panel there is a lighting system in which the fault is checked easily.

Finished Fabrics Inspection: The rolling inspection m\c is used to check the finished cloth before delivery.it also consists of some rollers rotating by the help of motors, gear and chain. At first the cloth passed through the inspection panel and check the quality of the cloth, then stored in a roller for supply. Here there is a lighting system like gray inspection m\c to check the quality.

Comments

Why a dc generator fails to build up voltage?

How can the problem be remedied : No residual magnetism, reversed field connection and high resistance of field circuit are responsible for the failure of build up process of a dc generator. The factors are explained below: No residual magnetism: For the starting build up process requires some residual magnetism in the magnetic circuit then no voltage will be generated that can produce current flow through field circuit. Reversed field connection: The voltage induced inside the coil of field circuit due to residual magnetism that can permit the flow of current. For the following direction of this flux will be created and the direction of this flux will be same direction as the residual flux. If the field connections are reversed the lines of flux produced by current flow will oppose the residual flux, as a result generate voltage will decrease rather than increase. So voltage build up process failed. Field circuit resistance too high: A field

How to Calculate Heat Rate of Generator Engine?

Types of Power Plant (Technology) Natural Gas Based power plant technology Diesel power plant technology Heat Rate of Engine= Fuel Flow or Fuel burned * Fuel Heating Value / Power Output 1 Liter Diesel = 0.85 Kg Example: Heat Rate of Diesel Generator at 100% Load Engine Model- 2506A-E15TAG2 Engine Capacity=400 eKW Fuel Consumption=84 L = 71.4 Kg Electrical Energy Output = 400 KW Heating Value of Diesel = 42.5 MJ/Kg Heat Rate of Engine= Fuel Flow or Fuel burned * Fuel Heating Value / Power Output Heat Rate of Engine = 71.4 Kg * 42.5 MJ/Kg /400KW Heat Rate of Engine =7.58 MJ/KWH Heat Rate of Gas Generator at 100% Load Engine Model- VHP5904LTD Engine Capacity= 900 eKW Fuel Consumption= 271 Nm 3 Electrical Energy Output= 900 KW Fuel Consumption= 0.28 Nm3/KWH Heating Value of Natural Gas= 35.22 MJ/ Nm 3 Heat Rate of Engine= Fuel Flow or Fuel burned * Fuel Heating Value / Power Output

Packing, Seals and Gaskets

Packing, seal and gasket resists the flow of fluid from machinery face, head, joint and machinery gap or clearance. Packing materials: Fiber, asbestos, cotton, synthetic materials, plastic, Teflon, graphite etc. Packing structure: Twisted, Braided and Consolidated. Gasket: A gasket is a mechanical seal that fills the space between two mating surfaces, generally to prevent leakage from or into the joined objects while under compression. Gaskets allow " less-than-perfect " mating surfaces on machine parts where they can fill irregularities. Gaskets are commonly produced by cutting from sheet materials, such as gasket paper, rubber, silicone, metal, cork, felt, neoprene, nitrile rubber, fiberglass, or a plastic polymer (such as polychlorotrifluoroethylene) Figure : Gaskets Name of the gasket uses

What are the main components of Automobile?

There have five basic parts for Automobile and they are given bellow: 1. Engine: Engine which is known to all as a power plant. Engine is the source of power which makes the car wheels rotate and the car move where it supply power to lubricating, fuel, electric and cooling systems. 2. Frame: Frame support the engine, body and wheels. 3. Power train: Power train transmit the power engine to the car wheels where its contain clutch, transmission, propeller shaft, axles and differential. 4. Car Body 5. Car body accessories: A car body accessory contains the heater, lights, radio, windshield wiper and convertible top raiser.

what is the difference between long shunt and short shunt dc generator?

How do they differ from normal generator? Draw their V-I characteristics and explain them? In short shunt connection the shunt field is connected directly across the armature terminals and the armature connection equals the sum of the shunt field current plus the load current . In this instance the load current flow s through the series field winding so that the load current and series field current are one and same. In long shunt connection the voltage across the shunt field is the same as the terminal voltage of the generator and current in the armature will be the current in the series field. The armature current equals the shunt field current plus the load current. A shunt generator has the field circuit connected directly across the armature. As more devices connected in parallel the load on the generator increases that the generator current increases which results decrease in terminal voltage of the generator.

Definition of Dwell Angle, Spark Angle, Firing order and Heat Path/spark plug reach

Dwell angle: It is the amount of time in degrees that contact point remain closed between each opening is called dwell angle. Spark angle: Spark plug is a device which device electric current from ignition system to combust on chamber of a S.I engine to ignite the compressed air fuel mixture in the form of spark at the end of compression stroke. Heat path/spark plug reach: Heat range is cylinder to heat combustion chamber. Firing order: Firing order is defined as the order on sequence in which firing takes place in every cylinder of a multi-cylinder engine.

Carriage and Main Parts of Carriage

Carriage: Between the head stock and tail stock that had several forms and serve to support move and control the cutting. Main Parts of Carriage : 1. Saddle 2. Cross-slide 3. Apron 4. Tool Post 5. Compound rest Common Operations of a Lathe Machine: 1. Turning: Turning is divided in two types and they are a. Straight Turning and b. Taper Turning. 2. Facing 3. Necking 4. Knurling 5. Parting 6. Thread cutting 7. Forming

Therbligs and Basic 17 motion name of therblig

Therbligs : A graphical representation of the co-ordinated activities of an operators body members. These activities ar described in terms of basic or fundamental motions known as therbligs. At the time Frank Gilbreth was doing his work in the field of motion study, he also concluded that any manual activity could be described in terms of 17 fundamental motions. This comparable to our being able to describe every word in the English language in terms of some of the 26 letters of the alphabet. Each of these fundamental motions is called a Therblig. Basic 17 motion name of Therblig : Name of Therblig Letter abbreviation Search Select Grasp Transport empty Transport loaded Hold Release Load Position Pre-position Inspect Assemble Disassemble Use Unavoidable Delay Avoidable Delay Plan Rest Sh ST G

what is PIV drive? Why is PIV drive more effective than any other system of drive?

PIV Drive: A stepless drive where the transmission of torque takes place infinitly variable without slip is called PIV drive. There are some advantages of PIV drive: there is no slip in the transmission of power. Maximum transmission of power. Speed can be changed at running condition Any range of slip can be obtain It give constant cutting speed for the above reason PIV drive is more effective than any other system of drive

Differentiate among progressive die, compound die and combination die.

Progressive die : The dies which performed two or more operations at different stages every time the ram descends is known as Progressive die. The principle advantage of Progressive die is in the number of operations that can be achieved with one handling of the stock strip. The main disadvantage is that work pieces may become “dished” as they pushed through the die as they generally have very little support. Compound die : A compound die differs from a progressive die in that it performs two or more cutting operations during one stroke of the press at one station only. Compound dies are slower in operation than progressive dies but they have advantages for certain jobs, especially where tolerance are close (1) the cutting operation, by the action of the knockout plate ,ensures flatness of the blank.2 Large parts can be blanked in a smaller press if compound dies rather than progressive dies are used. Combination dies: A die in which a cuttin

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