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TRIBOLOGY

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Order Information

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▪ webmaster@randb.co.kr

▪ T. 042-935-0490, F. 042-935-0496

R&B Inc.

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Preface Tribology is on the intermediate field between science and engineering that deals with the design, friction, wear and lubrication of interacting surfaces in relative motion. From this definition, it is evident that tribology plays an extremely important role in the design of mechanical equipment, since relative motion between surfaces of machine components cannot be avoided. The economic effect of improved understanding in tribology cannot be overemphasized. Reasonable design of sliding components and proper selection of materials and lubricants save the cost in maintenance and replacement costs, reduction of losses due to breakdowns, saving in capital investment through increased life of machines and lower energy consumption resulting from lower friction. Therefore, it is imperative to explore and utilize the fundamentals of tribology. For the convenience of the customers on tribology, R&B Inc. has developing the ‘TRIBOTM’ brand system and supplies all kinds of testing equipment with reasonable price, quick delivery. The performance of all kinds of product has been certified and checked sufficiently with careful procedures. ‘TRIBOTM’ is a not world leader brand in tribology field, but will be the world best brand for trying to eliminate the difficulty involved in wear and friction research field and developing new techniques for test. Brand-new Technology in Tribology Field If you want to find superior suitable products for tribology research field, R&B try to solve this problem. ‘TRIBOTM’ products have various kind of advantages; ▪ Tribology analysis technology ▪ Simple and easy wear test and data analysis. ▪ High quality wear and friction information ▪ Various kind of jig and fixture. ▪ Application to wide range of tribology research field

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Wear Standards ▪ Wear General

Wear Data Acquisition ASTM G163 Digital Data Acquisition in Wear and Friction Measurements

Wear data format ASTM G118 Recommended Format of Wear Test Data Suitable for Databases

Wear terminology ASTM G40 Standard Terminology Relating to Wear and Erosion

Friction coefficient ASTM D1894 Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting ASTM G115 Measuring and Reporting Friction Coefficients ISO 8295 Plastics-Film and sheeting – Determination of the coefficient of friction

▪ Lubricant & Grease test

ASTM D3233 Measurement of Extreme Pressure Properties of Fluid Lubricants ASTM D3337 Determining Life and Torque of lubricating greases in small ball bearings JASO M348 Friction characteristics test method for automatic transmission fluids ASTM D2266 Wear Preventive Characteristics of Lubricating Grease (Four-Ball Method) ASTM D2596 Measurement of Extreme-Pressure Properties of Lubricating Grease (Four-Ball Method) ASTM D2783 Measurement of Extreme-Pressure Properties of Lubricating Fluids (Four-Ball Method) KS M2026 Petroleum products-Testing methods for load carrying capacity ASTM D5707 Measuring Friction and Wear Properties of Lubricating Grease Using a High-Frequency,

Linear-Oscillation (SRV) Test Machine ASTM D2509 Measurement of Load-Carrying Capacity of Lubricating Grease (Timken Method)

Lubricant & Grease Timken ASTM D2782 Measurement of Extreme-Pressure Properties of Lubricating Fluids (Timken Method) ASTM D4172 Wear Preventive Characteristics of Lubricating Fluid (Four-Ball Method) ASTM D5706 Determining Extreme Pressure Properties of Lubricating Greases Using a High-Frequency,

Linear-Oscillation (SRV) Test Machine ASTM D4170 Fretting Wear Protection by Lubricating Greases

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▪ Wear test

Abrasion wear ASTM G65 Measuring Abrasion Using the Dry Sand/Rubber Wheel Apparatus

Ball-on Flat ASTM G133 Linearly Reciprocating Ball-on-Flat Sliding Wear

Block on ring ASTM D2714 Calibration and Operation of the Falex Block-on-Ring Friction and Wear Testing Machine ASTM G137 Ranking Resistance of Plastic Materials to Sliding Wear Using a Block-On-Ring Configuration ASTM G77 Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test

Cavitation Erosion ASTM G32 Cavitation Erosion Using Vibratory Apparatus

Ceramic ball on disk ISO 20808 Determination of friction and wear characteristics of monolithic ceramics by ball-on-disc method

Coal sampling ISO 1988 Hard coal - Sampling

Coating wear KS D 8335 Methods of wear resistance test for metallic coatings

Cross cylinder ASTM G83 Wear Testing with a Crossed-Cylinder Apparatus

Four ball and EP Test Summary Galling resistance

ASTM G98 Galling Resistance of Materials Jet erosion

ASTM G134 Erosion of Solid Materials by a Cavitating Liquid Jet Pin Abrasion

ASTM G132 Pin Abrasion Testing Pin-on Disk

ASTM G99 Wear Testing with a Pin-on-Disk Apparatus Reciprocating wear

ISO 12156 Diesel fuel -Assessment of lubricity using the high-frequency reciprocating rig (HFRR) Rubber Abrasion wear

ASTM G105 Conducting Wet Sand/Rubber Wheel Abrasion Tests Scratch test

ASTM C1624 Adhesion Strength and Mechanical Failure Modes of Ceramic Coatings by Quantitative Single Point Scratch Testing

Slurry abrasion ASTM G75 Determination of Slurry Abrasivity (Miller Number) and Slurry Abrasion Response of Materials

(SAR Number) Solid particle erosion

ASTM G76 Conducting Erosion Tests by Solid Particle Impingement Using Gas Jets Thrust washer wear

ASTM D3702 Wear Rate and Coefficient of Friction of Materials in Self- Lubricated Rubbing Contact Using a Thrust Washer Testing Machine

R&B information on wear and friction

Friction coefficient TN 14 Know -how of wear test Wear seminar document and etc. Refer to R&B Technical report LIST

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Introduction

R&B Inc. was established to product/supply mechanical testing system and metallurgical sample preparation

equipments at 1997 located in Daeduk Science Town (take 2 hours from Seoul by car)

R&B inc. has supplied more than 3,000 testing systems and equipments to universities, institutes and industries

during last two decades.

Also R&B opened Testing Service Center to supply testing service of mechanical property test and

microstructure analysis

▪ Division

• TOPMET Division Metallography Equipment and Accessory

• TRIBO Division Wear & Erosion

• UNITECH Division Material Testing System

▪ History

1997. Establishment

1999. Open the Research Center

2002. ISO 9001, 2000

2003. The Honor of Bronze Tower Industry

2004. Move to new building in Daedeok techno valley

2009. CE certification

2009. KOLAS accreditation

2015. On-line shopping mall open

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▪ Patent and Certification

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▪ Product Index

Model Number Description

RB311 ST Scratch Tester

RB100 MT Micro Tribo System

RB101 MP Multi-purpose Wear Tester

RB102 PD Pin on Disc Wear Tester

RB103 RB Ring on Block Wear Tester

RB104 FW Fretting Wear Test Machine

RB105 AW Abrasive Wear Tester

RB106 RC Rolling Contact Wear Tester

RB107 ST Seizure Tester

RB108 RF Reciprocating Friction Wear Tester

RB109 FB Four Ball Wear Tester

RB110 ET Solid Particle Erosion Tester

RB111 CE Cavitation Erosion Tester

RB112 SE Slurry Erosion Tester

RB113 CT Cam & Tappet Wear Tester

RB115 FT Friction Tester

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Model No. RB311 ST SKECHTM Scratch Tester Introduction Scratch test covers the determination of the practical adhesion strength and mechanical failure modes of hard and thin ceramic coatings on metal or ceramic substrate at ambient temperature. These ceramic coatings are commonly used for wear/abrasion resistance, oxidation protection, and functional performance improvement. In this test method, a diamond stylus of defined geometry is drawn across the flat surface of a coated test specimen at a constant speed and a defined normal force for a defined distance. The damage along the scratch track is microscopically assessed as a function of the applied load. Special levels of progressive damage are associated with increasing normal stylus forces. The force levels which produce a specific type/level of damage in the coating are defined as a critical scratch load. The test method also describes the use of tangential force and acoustic emission signals as secondary test data to identify different coating damage levels. 1. Progressive load scratch test (PLST) 2. Constant load scratch test (CLST) 3. Multi-pass scratch test (MPST) Characteristics • ASTM C-1624 • Closed loop control • Acoustic emission detector • PC controlled operation • Data display • Video for Image measurement (Option) • Data display • Progressive load scratch test (PLST) • Constant load scratch test (CLST) • Multi pass scratch test (MPST) • Testing variable Setting & Control • Data report form

Specification • Dimension: 610W x 300D x 715H • Weight: 80 kg • Normal force( Fn, Newton): 200 or more • Normal force resolution(N): 3mN • Tangential force (Ft, Newton): 200 or more • Tangential force resolution(N): 3mN • Stroke-Z direction (mm): 20 or more • Stroke resolution- Z direction: 10nm • Scratch stroke-X direction (mm): 150 or more • Scratch stroke resolution: 10nm • Loading rate (N/min.): 5~200 • Scratch speed(mm/min): 0.001~100 • Y-direction stroke (mm): manual 30 or more • Specimen table dimension (mm x mm): 40x30 • X-Y table: 150x50 • Indenter: Rockwell C Diamond cone or User defined indenter

• Video microscope magnification (Option): 50x, 200x

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Model No. RB100 MT Micro Tribo System Introduction To secure performance and durability of micro devices, each element should reduce friction and wear. Miniature mechanical devices such as MEMS and many devices of IT industries have received significant attention due to their great potential in practice. However, issues of surface interactions such as adhesion and wear in these structures have prevented their reliable operation and practical application. The low friction/wear technology aims at protection of severe surface damage of mechanical elements by minimizing the transfer of friction energy or adhesion generated at the contacting interface. The reduction of friction in turn reduces wear damage and thereby extends the life and reliability of products and leads to the improvement in the performance of precision mechanical elements. As the contact between two bodies is initiated from the individual asperities at micro/nano scale, a better understanding of the tribological behavior in the contact interface at micro/nano scale is great importance. This system is suitable to study on microtribology or nanotribology. • Plate specimen size: up to 12x12x11 mm (Depth,

Width, Height) • Ball specimen: 1, 2, 3 mm diameter • Pin specimen: 1, 2, 3 mm diameter x 10 mm length Display data • Sliding velocity • Normal force • Coefficient of friction • Friction force • Testing time • Number of revolution • Sliding distance • Temperature Control parameters • Sliding velocity • Normal load • Testing time • Testing cycle • Temperature

Application • Friction, wear and lubrication phenomena in

micro/nano scale • Tribology in head-disk interface of magnetic storage

device • Ultra thin film lubrication in micro machine • Tribology in micro machine Specification • Load capacity: 0.01N ~ 10N • Load: Precision weight • RPM: Max. 3000RPM • Power: 0.4kw Servo motor • Pin on Disc & Ball on Disc • Friction coefficient • Heating method: Peltier element • Heating range: RT ~ 1500C * Specifications can be changed with user’s define Test Method • Pin on Disc Test (ISO 7148, ASTM G 99) • Ball on Disc (ISO 7148) • Thrust Washer (ASTM D 3702)

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Model No.RB101 MP

Multi-purpose Wear Tester

Introduction This multi-purpose wear tester is designed with modular types of rotating module, reciprocating module and block on ring module. Using the rotating module, pin/ball on disc test can be carried out, reciprocating module is used for ball on flat and reciprocating cyclic wear test. Block on ring module is used for block on ring, pin on ring, ball on ring test. Display data • Sliding velocity • Normal force • Coefficient of friction • Friction force • Testing time • Number of revolution • Sliding distance • Temperature Control parameters • Sliding velocity • Normal load • Testing time • Testing cycle • Temperature

Specification • Load capacity: Up to 1kN • RPM: Max. 1,800RPM • Reciprocating frequency: up to30Hz • Reciprocating stroke: up to 25mm • Power: 0.4kw Servo motor • Pin on Disc & Ball on Disc • Friction coefficient • Heating range: RT ~ 150C • Block on ring module • Reciprocating module * Specifications can be changed with user’s define Test Method • Pin on Disc Test (ISO 7148, ASTM G 99) • Ball on Disc (ISO 7148) • Thrust Washer (ASTM D 3702)

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Model No. RB102 PD Pin on Disc (Pin on disc Wear Tester) Introduction

Pin on disc wear tester is most popular system in wear testing machine. This system can be used as the ball on disc, pin on disc type with changing the sample jig and fixture.

This system can do following wear test - Ball on disc (One ball, three ball), Pin on disc (One pin, three pin), Pin on plate, Four ball test, Rolling four ball test and Thrust washer test. There are two kinds of loading mechanism. One is lever &weight type and another is air piston type. Lever ratio have two steps and been changeable according to the testing purpose. PC driven controller and software can control the machine and make data acquisition and analysis very easily. All control parameters, current status of machine and data are displayed in large LCD panel. Specification ▪ Rotational speed: 1 to 1,700 rpm ▪ Load capacity: 10, 50, 200kg (Selectable) ▪ Humidity control: 30 ~ 90% R.H ▪ Heating range: ~ 150°C (High Temp. is available with

option) ▪ Lever ratio: 10:1, 2:1 Test Method ▪ Pin on Disc Test (ISO 7148, ASTM G 99) ▪ Ball on Disc (ISO 7148) ▪ Thrust Washer (ASTM D 3702)

Specimen Disc Specimen: 30, 60 mm diameter x 8 mm thick Pin Specimen: 5 mm diameter x 20 mm long Ball Specimen: 5.95 mm, 12.7 mm diameter Radius of Test Track: 0 to 60 mm

Control parameters

▪ Rotation speed ▪ Temperature ▪ Load ▪ Time ▪ Cycle ▪ Sliding distance Recorded parameters ▪ Rotational speed ▪ Friction torque ▪ Temperature ▪ Number of revolution ▪ Test duration ▪ Sliding speed ▪ Friction coefficient

▪ Sliding distance

Report Form

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Model No. RB103 RB Ring on Block Wear Test Machine

Introduction

This system is designed for various Rolling Contact Wear Test and Simulation for sliding wear

This test method covers a laboratory procedure to measure the resistance of materials under dry sliding conditions. The test utilizes a block-on-ring geometry to rank materials according to their sliding wear characteristics under various conditions. Wear test results are reported as specific wear rates calculated from volume loss, sliding distance, and load. Materials with superior wear resistance have lower specific wear rates. A block of known dimensions is brought into contact with a counterface ring (usually metal) under controlled conditions of contact pressure and relative velocity. This is achieved using a block-on-ring configuration The test is continued until the steady state wear rate is established. Mass loss measurements made after the steady state is established are used to determine the steady state specific wear rate, which is the volume loss per unit sliding distance per unit load. The frictional torque may also be measured during the steady state using a load cell. These data can be used to evaluate the coefficiency of friction for the test combination. Specifications ▪ Motor: AC servo motor ▪ Loading mechanism: AC servo motor or hydraulic control system ▪ Load capacity : 20 ~ 10,000 N ▪ Load cell (10,000 N ~ 100 N changeable) ▪ RPM: 60 ~ 3,000 rpm ▪ Heating system: R.T to 150 ± 2°C ▪ Lubricating chamber: R.T to 150 ± 2°C ▪ Vibration sensor

Control parameter • Temperature • Load • Time • RPM • Cycle

Characteristics • Easy operating • High frame stiffness • Multi safety device • Control of motor rpm. • Easy to use for simple operation. • Control revolution for counter meter • Quick response on dangerous situation Test Method ▪ ASTM D2714 ▪ ASTM G77 ▪ ASTM G137 ▪ ASTM D3704 Display parameter • Control signal • Friction coefficient • Vibration • RPM • Time • Load • Total cycle

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Model No. RB104 FW Fretting Wear Test Machine Introduction This system is useful to study on fretting resistance of steel ball and other components operated in fretting (wear) fatigue and fretting corrosion condition.

This system is consisted of main unit (including electromagnetic actuator type loading system), friction force measuring sensor, displacement gage, controller and software.

Followings are the specification of this system.

Control parameters

▪ Frequency ▪ Temperature ▪ Load ▪ Test duration Specifications •Load capacity: 300N •Loading Type: Hybrid loading system •Electromagnetic type linear actuator •Maximum force: Max. 300 N •Stroke: ±4 mm •Max. Frequency: 30 Hz. (dependant on the load or

displacement) •Maximum speed: 1,000 mm/sec •Stroke resolution: 1μm

Test Method ▪ ASTM D4170 ▪ ASTM G133

Recorded parameters ▪ Load ▪ Friction force ▪ Temperature ▪ Frequency ▪ Contact potential ▪ stroke

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Model No. RB105 AW Abrasive Wear Tester Introduction This system is designed for experiment and analysis of coal as BS 1016-11. This equipment fix specific specimen in cylindrical-shaped chamber. And put critical size, quantity of coal into the chamber. After rotate the specimen by constant speed, and weight wear scar loss of the specimen, Wear loss is used for maintenance and repair of power plant equipment. System is consisted of Main frame, Motor, Mill pot, Quadrant arm, Blade and each indicator. Tool steel is used as blade (sample) for minimum wear scar, Hardness is controlled Hv 145~175 by heat treatment. Characteristics • Easy operating • High frame stiffness • Multi safety device • Control of motor rpm. • Easy to use for simple operation. • Control revolution for counter meter • Quick response on dangerous situation Controller Test condition setting and execution Rotating RPM control On line friction coefficient measuring Test Method ▪ ASTM G65 ▪ BS 1061-11 ▪ ISO 1988 Specifications •Max. RPM: 1470 •Drive motor capacity(kW): 3~4 •Driving spindle size (mm): 170 Ø x 326L •Mill pot size(mm): 219.1 Ø x 8.18T x 229L •Environment <50°C, <80% RH

Guard and quadrant arm Test step Put critical quantity coal into mill pot, Motor revolution is reached 1.470±30rpm in 10 seconds. Stop the motor at 12,000 ± 20revolution about 490 seconds. Separate the blade from quadrant arm, cleaning, and weighting wear scar loss on analytical balance, Record the wear loss.

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Model No. RB106 RC Rolling Contact Wear Test Machine

Introduction

This machine is used for the study on high load lubricate power transmitting contacts and rolling contact fatigue of materials. The test rollers have crowned profile giving a well defined circular contact zone and high Hertzian contact pressure. This system can be used for simulation of wear mechanism on rolling and sliding according to ASTM 2714, ISO7148. Constant load is applied by closed loop controlled AC servo motor. Characteristics • Load control: Servo motor closed loop control • Slip ratio control: 0 ~ 100% • Lubrication chamber • Full computer driver system controller • Window based system software Application • Rolling contact wear simulation • Sliding contact wear simulation • Bearing life test simulation • Scuffing test simulation • Gear wear simulation • Friction coefficient measurement • Upper & Lower disk test • Block on Ring test • Ring on Ring test

Specification

•Motor: AC servo motor •Loading mechanism: AC servo motor or hydraulic control system

•Load capacity : 20 ~ 10,000 N •Load cell (10,000 N ~ 100 N changeable) •RPM: 60 ~ 3,000 rpm •Heating system: R.T to 150 ± 2°C •Lubricating chamber: R.T to 150 ± 2°C •Vibration sensor

Display parameter • Control signal • Friction coefficient • Vibration • RPM • Time • Load • Total cycle

Control parameter • Temperature • Load • Time • RPM • Cycle Test Method ▪ ASTM 2714 ▪ ISO 7148

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Model No. RB107 ST Seizure Tester

Introduction

Materials are required to slide against one another, particularly with poor or no lubrication, high friction levels and seizure are commonly seen to occur, which can cause component failure. The wear and seizure has been investigated in sliding against a hard steel counter face by continuous loading experiments carried out in this seizure tester The wear characteristics of materials when considered as a function of load, exhibit distinct mild wear, severe wear and seizure regimes. Mild wear is characterized by formation of a protective iron-rich compacted layer. The severe wear is initiated when the protective layer is removed as a result of subsurface flow. On further increment of load this leads to seizure. Repeatable behavior was achieved in the tests and from the results, zones/points corresponding to seizure were identified based on previous definition from the literature. Friction coefficients behavior was also characterized. . Characteristics • Easy operating • High frame stiffness • Multi safety device • Control of motor rpm. • Easy to use for simple operation. • Control revolution for counter meter • Quick response on dangerous situation

Controller Test condition setting and execution Rotating RPM control On line friction coefficient measuring Specifications •Maximum RPM: 8,000RPM •Formality torque: 11kgf.m •Motor power: 22kw •Pulley and V belt •Air cylinder (belt tension control unit) •Rotating shaft with lubrication system •Hydraulic actuator

•Servo valve driver and control card

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Model No. RB108 RF Reciprocating Friction Wear Tester

Introduction

This system is the equipment used to evaluate a materials by reciprocating motion and is developed to perform various contact conditions The effects of speed and normal load can be examined under multiple lubrication regimes, and variations in the coefficient of friction can be observed as a function of crank angle degree.

Specification •Load range: 5 ~ 1,000 N •Load cell: 5N or 100N, 1,000N changeable •Transducer type : Piezo-Electric or strain gage type •Frequency range: 1 to 50 Hz •Stroke range: 0.5 ~ 20 mm •Heating method: cartridge or hot air heater •Heating range: ambient to 150°C (400°C option) •Temperature sensor: K type thermocouple Controlled parameters • Frequency • Temperature • Load • Test duration Recorded parameters • Load • Friction force • Temperature • Frequency • Contact potential • Friction coefficient • Stroke

Test Method ▪ ASTM D5706 ▪ ASTM D5707 ▪ ASTM G133 ▪ ISO 12156

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Model No. RB109 FB Four Ball Wear Tester

Introduction

Four Ball Wear Test Machine is used to determine the relative wear-preventing properties of lubricating fluids and greases in sliding and rolling applications. Three steel balls are clamped together to form a cradle upon which a fourth ball rotates on a vertical axis. The balls are immersed in the oil sample at a specified speed, temperature and load. At the end of a specified test time, the average diameter of the wear scars on the three lower balls is measured. During the test, the load is increased every 10 minutes up to the point where the frictional trace indicates incipient seizure.

Test Method •ASTM D2783 •ASTM D2266 •ASTM D4172 •ASTM D2596 Specification • Motor: AC servo motor • Load capacity: 250 ~ 10,000 N • Load cell (10,000 N, 1,000 N changeable) • RPM: 60 ~ 3,000 rpm • Heating system: R.T to 150°C • Test Ball: 12.7mm steel ball • Optional ball: Φ31/8”, Φ5/16”, Φ15/16”

Application

Lubrication oil and Grease performance evaluation with AISI Standard steel No. E-52100 (bearing steel) 12.7 mm, grade 25 EP(Extra polish) Rockwell C hardness 64~66

Control parameter

• Temperature • Load • RPM • Time • Cycle

Display parameter

• Friction torque • Friction coefficient • Time • Cycle • RPM Accessory • Wear scar measuring system

: Stereo microscope (zooming) : X-Y stage & Digital micrometer

• Four Ball Test Jig : ASTM D 2596 • Rolling Four Ball Jig

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Model No. RB110 ET Solid Particle Erosion Tester (DIMPLERTM )

Introduction

This test method covers the determination of material loss by gas-entrained solid particle impingement erosion with jet nozzle type erosion equipment. This test method describes one well characterized procedure for solid particle impingement erosion measurement. This test method utilizes a repeated impact erosion approach involving a small nozzle delivering a stream of gas containing abrasive particles which impacts the surface of a test specimen. This test method may be used to measure the solid particle erosion of different materials and has been used as a screening test for ranking solid particle erosion rates of materials in simulated environments. Actual erosion service involves particle sizes, velocities, attack angles, environments, etc., System • Controller of compressed air • Solid particle ejection system • Sample Stage • Double disc rotating velocity meter

Specifications •Max. compressive air pressure (psi): 100 •Max. particle velocity (m/s): 100 or more •Feeder rate: Changeable •Nozzle diameter (mm): Changeable •Nozzle length (mm): More than 50 •Sample elevating distance (mm): 30 •Sample Tilting angle:15~90 Double Disc Rotating Speed Meter Motor power (W) 250 Distance of two disc (mm) 20 Max. RPM 3,000 Disc diameter (mm) 100 Phase 220VAC, Single phase

Test Method • ASTM G76

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Model No. RB111 CE Cavitation Erosion Tester Introduction This cavitation erosion test system is designed and developed to measure the cavitation damage on the face of a specimen vibrated at high frequency while immersed a liquid. The vibration induces the formation and collapse of cavities in the liquid, and the collapsing cavities produce the damage to and erosion (material loss) of the specimen. This system is consisted of high frequency generator, timer, horn, cooling bath and transducer controller. The vibratory apparatus used for this system produces axial oscillations of a test specimen inserted to specified depth in the test liquid. An acoustic power output of 250 to 1000W has been found suitable. Test Method • ASTM G32 Specification • Specimen position control • Timer: Max. 2 hr (sec, min, hr) • High frequency vibrator: 20 kHz • Horn (Titanium) • Sample holder • Cooling bath: 1 liter ( -20 ~ +50°C±1°C) • Amplitude displacement: 50 micron±5%

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Model No. RB112 SE Slurry Erosion Tester Introduction Slurry erosion tester is a simple and inexpensive test rig which can provide a rapid ranking of the erosion resistance for different materials This system has an arrangement to enable users to test material samples for their resistance to slurry erosion. This is done by immersing the samples in slurry of the desired composition and concentration and rotating the samples about their axis. The much needed uniform distribution of solid particles along the vertical section of the slurry is controlled by the speed of the stirrer. This leads to erosion of the samples and in turn loss of weight. The weight loss of sample is evaluated and resistance to slurry erosion of the samples is determined. Characteristics • Easy operating • High frame stiffness • Multi safety device • Control of motor rpm. • Easy to use for simple operation. • Control revolution for counter meter • Quick response on dangerous situation Controller Test condition setting and execution Rotating RPM control On line friction coefficient measuring .

Specifications •Max. RPM: 500 •Drive motor capacity(kW): 3~4 •Driving spindle size (mm): 170 Ø x 326L •Mill pot size(mm): 219.1 Ø x 8.18t x 229L •Close side setting (mm): 7 X 40 •Quadrant arm size(mm):190. 2 Ø x 48L •Blade specimen size(mm):38 x 38 x 11t •Environment <50°C, <80% RH

Test Method • ASTM G73 • ASTM G75 • ASTM D3451 • JIS H8503 • ISO 7784

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Model No. RB113 CT Cam & Tappet Wear Tester Introduction This system is designed for wear aspect between the cam and tappet in vehicles. Generally the sample is actual cam and tappet of interested engine. So, It is possible to simulate the actual condition of engine behavior. Also this system can be used as rolling contact wear tester including slip stick motion. Specification •Rotational speed: 1 to 3,000 rpm •Load control: Constant/Continuous control •Cam & Tappet load capacity: Max. 1,000 kgf •Spring force manual control type •Friction transducer: 9.8 N.m ~ 196 N.m (changeable) •Vibration sensor: Frequency response: 3 ~ 7,000 Hz •Acceleration range: ±100g •Heating range: ambient to 150°C •Lubricant method: Jet or Deposition Test Method • ASTM G77 • ASTM D3704 • ASTM D2782

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Model No. RB115 FT Friction Tester

Introduction

This friction and wear system is designed for evaluation the tribological properties between the plate and block. Single and cyclic tests are also possible with user’s abject, and all data is saved automatically including vertical load, tangential load and friction coefficient. Characteristics • Easy operating • High frame stiffness • Multi safety device • Control of motor rpm. • Easy to use for simple operation. • Control revolution for counter meter • Quick response on dangerous situation Specifications •Load capacity: 100 kg to 1000 kg(Selectable) •Loading Mechanism: Servo motor •Speed: Max. 2000mm/min •Stroke: 300mm •Friction force: Maximum 2,000kg •Data acquisition rate: Max. 1 kHz

Test Method • ASTM D5707 • ISO 8925

System construction •Stand alone type frame •Hydraulic servo system •Loading actuator & horizontal moving system •Load & friction force measuring system •Environmental chamber •Induction heating system (sample plate) •Cartridge heating system (counter sample) •Lower/ Upper jig plate •System controller •Data acquisition and analysis software

•Fully computer control

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R&B Inc. Head Office: 65–1, Techno 8–ro, Yuseong–gu, Daejeon Korea 305–509 Tel: 82–42–935–0490 Fax: 82–42–935–0496 E–mail: webmaster@randb.co.kr

Home page: www.randb.co.kr Shopping mall: shop.randb.co.kr

Design and specification can be changed for quality improvement RB058-revised 3 PRINTED 8/2013 COPY RIGHT, R&B Inc.