Comparison between Shima Seiki 7GG and Stoll Machine 3GG

SL	Topics	Shima Seiki	Stoll
1	Knitting Speed	1.20 m/s	1.20 m/s
2	Broken Needle	25%	20%
3	Oiling	Every 8 to 12 operating hour run 20 gm oil need for one machine	Every 12 operating hour run 35 gm oil need for one machine
4	Cleaning	Every 8 to 12 operating hour should be cleaning	Every 12 operating hour should be cleaning
5	Spare Parts	Payment after delivery	Payment before delivery
6	Feeder Quantity	9 Feeder (Limitation of knit 7 different colors)	12 Feeder (Limitation of knit 10 different colors)
7	Sub Roller Quantity	One Sub Roller	Two Sub Roller (Increase production quality)
8	Needle Price	75 Tk	143 TK
9	Weight	660 Kg	1028 Kg
10	Cone Stands	Travelled in Top Bed	Fixed in Top bed
11	Knitting Bed	45 inch	45 inch
12	Power Consumption	1.28 KW	1.7 KW
13	Length	7.054 ft	7.8 ft
14	Width	2.58 ft	3 ft
15	Needle Quantity	630 Pcs	448 Pcs
16	Model	SSR112 (Gauge: 7G)	CMS 502 HP+ Multigauge (Gauge: E2,5.2 M, 4L)

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Definition of Friction and Brake

Friction is main bad effect of a motor. Friction reduce a motor efficiency. Friction mainly create in a motor for it’s corrosion or speed ratio on spin. In a motor flywheel adjusted in drive wheel. In a gear ratio it mainly depends on gear and flywheel transfer energy on drive wheel. In a car or heavy load carrier vehicle used spring for reduce vibration and friction reduce generally use oil especially used in lubrication. For friction reduce one should firstly should select a metal which is help to reduce corrosion that’s means high resistance corrosion. Brake is also more important issue for a vehicle for it speed is slow down. There are three types of brake such as electromagnetic, disc and drum brake. Kinetic energy change to heat energy a vehicle speed reduce. Most of the car and vehicle use hydraulic brake which based in 6 steps and depends on 6 parts. These six parts are valve, road wheel, pedal, cylinder and boost. Electromagnetic brake is more popular for it’s more fa...

Mechanism of Solar Collector for Flat Plate

Solar collector main theme is collect radiation from sun and it transfer to heat energy or electricity to other storage such as a battery. One can use various types of solar collector such as a disk, flat and tube in thermally. In solar collector radiation absorb but the amount of supply heat is greater than absorb of heat. Radiation is mainly depends on environment, place, temperature, sunlight and air. For running a turbine solar collector used for initially running. If a collector any one compare concentrating solar and non concentrating solar collector there have basic difference such as concentrating solar has more benefits because it received radiation in whole area. In 1950 two person whore they Hottel & Whillier give a new theme to us for flat plate solar collector which has more benefit. A flat plate solar collector has some gradient such as i...

How to Calculate Heat Rate of Generator Engine?

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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) ...

Why Coal is limited for world people?

Coal is a natural source of energy. But has limitation in earth. Coal is made from based on carbon. And other metals also contain such as H (hydrogen), S (Sulfur), N (nitrogen), O(oxygen). Coal is harder than any other metal. Coal mainly found in Soil, By using coal and give high pressure people can produce high temperature which is used by people in various ways such as produce electricity. Coal is largest natural energy in world anthropogenic. By using coal there have create much amount of CO 2 (carbon die oxide) which more bad for our environment and polluted our air. By using the amount of pollution is more than using natural gas in produce of electricity. When produce 1 MH (Mega watt hour) produce electricity carbon die oxide produce about two thousands pounds by using coal. And when also same amount of electricity produce by using natural gas carbon die oxide produce one thousand pounds. For reducing the emission of CO ...

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

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Why a dc generator fails to build up voltage?

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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 ...

Which type of Battery connection Series or Parallel Connection is used for Diesel Generator?

Diesel Generator Battery Connection Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To remove the possibility of arching, remove the negative battery cable is first and attach the negative battery last. When using jumper cables to start the engine make sure to connect the cables in parallel Positive to positive and negative to negative. When using external electrical source to start the engine, turn the disconnect switch to the OFF position. Remove the key before attaching the jumper cables. To avoid damage to engine parts do not connect jumper starting or battery charging cable to any fuel system or electronic component. Battery Parallel Connection: The accompanying illustration shows a typical parallel battery connection. This arrangement doubles the cranking amperage. Battery Series Connection: This illustration sh...

Various Methods of Drawing Flow Nets

1. Hydraulic models: a. Streamlines can be traced by injecting a dye in a seepage model or Heleshaw apparatus. b. They by drawing equipotential lines the flow net is completed. 2. Analytical Method: a. It is only applied to problems with simple and ideal boundaries conditions. b. The equation corresponding curve ǿ and Ѱ are first obtained and the same are plotted to give the flow net pattern for the flow of fluid between the given boundary shape. 3. Electrical Analogy Method: This method based on the fact that the flow of fluids and flow of electricity through a conductor are analogus. These two systems are similar in the respect that electric potential is analogus to the velocity potential. The electric current is analogus to...

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