te 88 multi-station friction & wear test … · te 88 multi-station friction & wear test...
TRANSCRIPT
Background
The TE 88 Multi-Station Friction and Wear Test Machine is design for wear testing of materials
under high contact pressures in pin on disc, block on ring or reciprocating pin on plate modes.
In reciprocating mode the machine can perform tests in the ASTM F 732 geometry, in Pin on
Disc mode according to ASTM G 99, and in Block on Ring Mode according to ASTM G 77. The
machine may be supplied with one, two and three Pin on Disc, Block on Ring or Reciprocating
Pin on Plate test stations. It incorporates an integrated SUPERSLIM Serial Link Interface Module
and COMPEND 2000software running on a host PC.
TE 88/BU Base Unit
The base unit comprises an a.c. variable speed gear-motor and a control and data acquisition
system. These are transferred between the Pin on Disc, Block on Ring and Pin on Plate modules,
depending on the tests configurations required.
TE 88/LFW Load/Friction/Wear Measurement Assembly
For each test station installed, a load/friction/wear assembly is required. These are transferred
between the Pin on Disc, Block on Ring and Pin on Plate modules, depending on the tests
configurations required.
The loading beam is pivoted at one end and a pneumatic bellows is used to apply a load at the
other end. The bellows system presents a constant inertial stiffness over the whole load range
and thereby reduces the inertia effects on test data. A force transducer mounted on the bellows
allows the applied load to be measured. Load is adjusted by means of a manually set precision
regulator.
The load beam pivot is trunnion mounted and restrained from movement, when in the
horizontal position, by pads mounted on the load application bracket. A strain gauge force
transducer mounts on the load beam and fits between these pads when the arm is horizontal
thus allowing the friction signal to be sensed.
The transducer output connects to a strain gauge amplifier module and the output from this
may be connected direct to the interface for uni-directional friction measurements (pin on disc
and block on ring tests). The output may also be passed through a true rms/dc converter and
then connected to the interface to give averaged friction readings in reciprocating pin on plate
mode.
An LVDT is mounted in contact with the underside of the load beam. As the pin or block wears,
the vertical movement of the load beam is detected by the transducer. Wear of up to 1.5 mm at
the contact can be measured. The LVDT is self-powered and plugs directly into the interface.
TE 88/R Reciprocating Pin on Plate Module
The TE 88/R module can accommodate up to three test stations. Flat plate specimens are
mounted in a reservoir to retain lubricating fluid with a lid to avoid spillage and reduce
evaporation during long-term tests. Each station is fitted with electrical heating (for
temperatures up to 400°C) and a thermocouple. The reservoirs are mounted on a common
plate, which is located by ball bushings on a linear bearing assembly. The plate is reciprocated
by variable throw crank.
TE 88/P Pin on Disc Module
The TE 88/P module can accommodate up to three pin on disc test stations. A heated non-
rotating fluid enclosure is provided with each test station allowing tests to be performed in fluid
environments with a temperature limit of 200°C. A lid is provided to minimise fluid splashing. A
thermocouple is fitted to the lower part of the enclosure to monitor and control the
temperature.
TE 88/B Block on Ring Module
The TE 88/B module can accommodate up to three test stations. The ring specimen is mounted
on a horizontal test shaft. Test may be performed under ambient conditions.
TE 88/TW Thrust Washer Test Adapter
TE 88/TW adapted is used in conjunction with the TE 88/P Pin on Disc Module and allows tests
to be performed using thrust washer test specimens in accordance with ASTM D3702. A force
transducer is included for measurement of torque.
TE 88/HT High Temperature Pin on Disc Test Adapter
An optional higher temperature air heating system TE 88/HT is available for use with ONE
station of Pin on Disc module only. The TE 88/P heated fluid enclosure is replaced by a stainless
steel enclosure with inlet and outlet ports.
Hot air from a electrically heated blower unit is then directed into the inlet port and a chimney
directs the exhaust upwards from the outlet port. The temperature of the disc specimen is
measured using an optical pyrometer.
Control and Data Acquisition
The TE 88 has PC based sequence programmable control and data acquisition. This is provided
by an integrated Serial Link Interface Module and COMPEND 2000 software running on a host
PC, operating under Windows. Data is stored to hard disc in standard spread sheet compatible
file formats (.csv or .tsv).
Tests are defined by a sequence of steps, each step containing set-point, data recording rates
and alarm level information. Set-points may be adjusted by step change or ramp. The test
sequence is followed unless interrupted by the operator or an alarm. Set-points may also be
adjusted manually using on screen toggles.
Purchasing Examples
ONE Station Pin on Disc, Block on Ring, Reciprocating Pin on Plate Machine with Wear
Transducer:
TE 88/BU Base Unit
TE 88/LFW Load/Friction Measurement Assembly
TE 88/R-1 Reciprocating Pin on Plate Module
TE 88/P-1 Pin on Disc Module
TE 88/B-1 Block on Ring Module
THREE Station Reciprocating Pin on Plate Machine:
TE 88/BU Base Unit
TE 88/LFW Load/Friction Measurement Assembly
TE 88/LFW Load/Friction Measurement Assembly
TE 88/LFW Load/Friction Measurement Assembly
TE 88/R-3 Reciprocating Pin on Plate Module – Three Test Stations
ONE Station High Temperature Pin on Disc Machine:
TE 88/BU Base Unit
TE 88/LFW Load/Friction Measurement Assembly
TE 88/P-1 Pin on Disc Module – One Test Station
TE 88/HT High Temperature Pin on Disc Test Adapter
TE 88 MULTI-STATION FRICTION & WEAR TEST MACHINE
Technical Specifications
TE 88 Base UnitInterface: Serial Link Interface ModuleSoftware: COMPEND 2000Motor: 2.2 kW ac
TE 88/LFW Load/Friction Measurement AssemblyNormal Load: 10 to 1,000NSignal Conditioning: Strain Gauge Amplifier ModuleFriction Force Range: 500 NSignal Conditioning: Strain Gauge Amplifier Module
RMS/DC Converter ModuleWear: LVDTRange: 1.5 mmResolution: 1 µmSpecimen Holder: 8 mm and 5.5 mm diameter pinsOptional Holders: 10 mm and 6 mm diameter balls
TE 88/R Reciprocating Pin on Plate ModuleContact Configurations: Pin on Plate
Ball on PlateNumber of Stations: ThreeTemperature Range: Ambient to 400°CHeating Power: 800 WTemperature sensor: k-type thermocoupleStroke/Frequency: Up to 25 mm at 2 Hz
Up to 50 mm at 1 Hz
TE 88/P Pin on Disc ModuleContact Configurations: Pin on Disc
Ball on DiscOptional Configuration: Thrust WasherNumber of Stations: One, Two or ThreeDisc Diameter: 75 mmTrack Radius: 0 to 35 mmFluid Temperature: Ambient to 200°CHeating Power: 800 WTemperature sensor: k-type thermocoupleRotation Speed: 30 to 1,000 rpmSliding Velocity: 0.12 to 4 m/s
TE 88/B Block on Ring ModuleContact Configurations: Block on Ring
Ball on RingNumber of Stations: One, Two or ThreeRing Diameter: 80 mmRotation Speed: 30 to 1,000 rpm
TE 88/TW Thrust Washer Test AdaptersThrust Washer: 1.125 inch O/D according to ASTM D 3702
2 inch O/D according to ASTM D 3702
TE 88/HT High Temperature Pin on Disc Test AdapterTemperature Range: up to 400°CAir Heating Power: 2.8 kWTemperature sensing: Optical Pyrometer
Automatically Controlled Parameters Rotational Speed
Test Duration
Manually Controlled Parameters Load
Measured Parameters Friction
Load
TemperatureWearRotational SpeedNumber of RevolutionsTest DurationSliding SpeedOscillating FrequencyFriction CoefficientSliding Distance
ServicesElectricity: 220/240V, single phase, 50 Hz, 3 kW
110/120 V, single phase, 60 Hz, 3 kWClean, dry air: 4 cfm at 8 bar (120 psi)
InstallationBench-mounting machine: 1,300 x 720 x 850 mm high, 250 kgBench-mounting cabinet: 530 x 530 x 350 mm high, 40 kgPacking Specifications: 1.25 m
3, GW 271 kg, NW 193 kg