SLIP & CREEP MEASUREMENT APPARATUS MAKE : CREATIVE LAB MODEL NO:CLTOM-10, SLIP & CREEP MEASUREMENT APPARATUS MAKE : CREATIVE LAB MODEL NO:CLTOM-10, RING AND BALL APPARATUS, MICHELL TILTING PAD BEARING APPARATUS MAKE : CREATIVE LAB MODEL NO: CLTOM-09, DIGITAL LENGTH COMPARATOR, manufacturers suppliers in India

DIGITAL LENGTH COMPARATOR

TECHNICAL DETAIL
For Drying, Shrinkage and Moisture Movement

Ref. Standards IS:4031, IS:9459, ASTM C490 and BS: 1881, EN-1367-4

For determination of change in size of a concrete or cement sample, brought

about by a change in moisture content,

The apparatus can be used for three basic tests:

Initial drying shrinkage

•The difference between the length of the cured specimen and the length when it is dried.

Drying shrinkage

•The difference between the length of the specimen from existing structure and its length when completely dried.

Moisture movement

•The difference between the length of the dried specimen and its length when again saturated with water.

The equipment consist of following replaceable parts :

•Length Comparator Frame

•Reference Bar

•Digital Dial Gauge 0-25mm x 0.001mm

MICHELL TILTING PAD BEARING APPARATUS MAKE : CREATIVE LAB MODEL NO: CLTOM-09

DESCRIPTION:

The apparatus consists of a pad which can be tilted to the required angle. An endless belt which moves beneath the pad carries the oil over its surface from oil bath. When the pad is tilted over the oil film pressure is developed the pad is provided with pressure tapings parallel and perpendicular to belt direction. The pressure distribution is measured over a multi tube manometer. The belt is driven by a variable speed motor. The tilting angle and minimum gap between pad and belt can be adjusted and characteristics thus can be studied at various gaps, inclination and relative surface speeds.

EXPERIMENTATION:

Demonstration of pressure development.

Plotting pressure variation curve in longitudinal & transverse direction of a pad for various speeds and pad inclination.

Demonstration of cavitation phenomenon.

UTILITIES REQUIRED:

Electricity Supply: 230 V AC Single Phase 50 Hz 5-15 amp combined socket with earth connection.

Earth voltage should be less than 5 volts.

Floor area: 1.5 m x 1.0 m (approx).

SAE-40 oil for carrying the test (approx 3 Ltrs.)

TECHNICAL DETAILS

Tilting pad: Trapezoidal shape, with highly polished surface & pressure tapings.

Belt: Endless belt running over wide pulleys, immersed in oil bath.

Motor: Variable speed Motor ½ HP 1500 RPM.

Control panel: For speed control unit.

Manometer: Multi Tube manometer Arrangement for measurement of indication and gap.

Control panel comprises of:

RPM measurement: Digital RPM indicator with proximity sensor (non contact type) Variac, Standard make on-off switch, mains indicator & fuse etc.

An ENGLISH instruction manual consisting of experimental procedures, block diagram etc.

RING AND BALL APPARATUS

DESCRIPTION

Used for determining the temperature at which a bituminous material loaded by a 9.5 mm dia steel balls drops under specified heated conditions.

Magnetic stirrer with heating facility. Digital temperature display.

Tapered Rings - 2 Nos.

Ball Centering Guide 2 Nos. Steel Balls of 9.5 mm dia 2 Nos. Ring holder- 1 No.

Electric Heater (Hot Plate) 1 No. Thermometer IP 60C

Suitable for operation on 220 V, 50 Hz, single phase, AC supply.

IS: 1205, IP:58

SLIP & CREEP MEASUREMENT APPARATUS MAKE : CREATIVE LAB MODEL NO:CLTOM-10

DESCRIPTION

This apparatus is useful for measurement of power transmitted for various input power conditions with varied belt tension. Belt slip or creep also can be measured. The apparatus consists of a variable speed motor, driving pulley and driven pulley of equal diameters. The pulleys are mounted on input shaft (motor shaft) and output shaft. The driven pulley can slide on the base only with bearing block to change the initial tension in belt. Brake drum is mounted on the output shaft, which helps to measure power output. The motor speed is varied by variable speed drive. A double channel digital speed indicator indicates driving and driven pulley speeds. With the help of Stroboscope (optional) it is possible to demonstrate the slip of belt on driving and driven pulley.

EXPERIMENTATION:

To measure co-efficient of friction between pulley material and different belt materials.

To measure power transmitted with varied belt tension.

To measure percentage slip at fixed belt tension by varying load on the brake drum and plot the graph of (T1-T2) v/s percentage slip i.e. “Slip Characteristics”.

To measure belt slip speed and observe the limiting value of load at constant speed when the slip just starts.

To study creep of belt.

UTILITIES REQUIRED

Electricity supply: 220 V, Single Phase, 0.5 kW.

Space: 0.5m x 1.5m

TECHNICAL DETAILS

Motor Variable speed motor, 1HP, 1500 RPM.

Pulleys Driving and driven pulleys of equal diameters (flat pulleys)

Loading Arrangement Brake drum along with spring balance and rope arrangement is provided to load the system.

Belts Flat belts of fixed length of two different belt materials

Belt tightening arrangement Bearing block is sliding and dead weight can be applied to set the initial tension in belt.

Speed Indicator 2 Channel digital speed indicator with switch to change the channel.

Instruction Manual An ENGLISH instruction manual will be provided along With the Apparatus.