INDUSTRIAL TRAINING PRESENTATION

Physical Testing Laboratory, Rubber Research Institute of Malaysia (RRIM), Malaysian Rubber Board (MRB), Sungai Buloh.

Nurul Azwin binti Mazlan1110117

Company Background

Task

Challenges

Suggestions

PLAN OF TALK

In 1925, RRIM Headquarters established in Jalan Damansara, KL. Opening of Experiment Station in Sungai Buloh.

Relocated at 260 Jalan Ampang, Kuala Lumpur on 19 May, 1937.

MRB is a government agency under the support of the Ministry of Plantation Industries and Commodities (KPPK).

Established with the specific purpose of exercising overall control of the research, technical development, market regulation and promotion work in support of the Malaysian rubber industry.

MRB include: Standard Development Agency, Academy Hevea Malaysia and GTACr

GTA OfficeCollect report, fax/scan email and mail report.

Laboratorieslogin sample, do analysis, validate results, print and sign the reports.

GTA subsampling and distribution groupDo sub sampling (if required) and distribute samples to respective labs

GTA payment counterPrepare payment receipt,credit bill, proforma invoice or vote transfer bill

G-TA registration counterReceive, register, label and acknowledge test for sample

One stop centre of rubber testing and consultancy service.

No. Laboratories1 Physical Testing Lab2 Tyre Testing Lab3 Calibration Lab4 Chromatography Lab5 SMR Control Lab6 Raw Rubber Testing Lab,KL7 Latex Testing Lab, KL8 Latex and Raw Rubber Testing Lab, Sg Petani9 Agroanalytical Lab

10 Protein Testing Lab11 Spectroscopy Analysis Lab12 Thermal Analysis Lab13 Microscopy Lab14 Pollution Control Lab Eco Analytical Lab15 Biological Lab16 Ad-hoc Testing Lab Contigency Lab

Heat build-up

Compression Stress Relaxation

Tensile Test

Hardness

Abrasion

Did a comparative test between the old and new machine. Several tests had been done including:

(1) Electrical Resistivity Test(2) Heat Build-up Test(3) Compression Stress Relaxation Test

Learnt all standard test method related to rubber.

(1) Electrical Resistivity Test

Keithley Picoammeter 485 model connected with Resistivity Adaptor 6105 and GW DC Power Supply

6517B electrometer/ high resistance meter connected with the Keithley Model 8009 Resistivity test fixture.

• Test conducted on both surface and volume resistivity depending on the appropriate electrode system.

• 2 different sample control sample electrical resistivity sample

• ASTM D257 standard test method• Nominal thickness of the test piece shall be in the range 0,5 mm to 5 mm,

preferably 1 mm or 2 mm.

Basic procedure

Thickness is measuredSizemin: 63.5 mm, max: 101.6 mm x 3.2 mm thick) greater than the annular electrode.

Put acetone mixture

Conditioned at least 24 h in desiccator

Sample put into test fixture

Volume resistivity measurement:

ohm-centimeters (1) volume resistivity of sampleV applied voltage from power supply in voltsthe average thickness of sample in inc the average thickness of sample in cm

Surface resistivity measurement:

ohm-centimeters (2) surface resistivity of sample Current outputsV applied voltage from power supply in volts

(2) Heat Build-Up Test

Doli Compression Flexometer with fully automatic system

Ueshima Compression Flexometer/Goodrich Flexometer

• exposing a rubber sample of a specified size and shape to oscillating compressive stresses .

• Check durability of rubber in finished product• Follow the standards ISO 4666/3, ASTM D 623 and BS 903, part A50

vulcanized rubber with diameter (0.15) mm and height (0.25) mm

Temperature chamber where sample was inserted into (old

machine) (a) (new machine) (b)

Basic procedure

Dusty samples is put into the silo (for

automatic machine)

(3) Compression Stress Relaxation Test

Compression Stress Relaxometer (old machine)

Compression Stress Relaxometer (New machine)

• Defines as a reduction in compressive force, expressed as percentage of the initial force.

• Accordance by international standard (ISO 3384, MS ISO 3384, BS 3384) and American Society for Testing and Material (ASTM D575)

• duration of test shall be 168 h• Stress Relaxation percentage: R(t)= - /x 100 

The cylindrical shape of rubber sample with diameter 13 mm 0.5 and thickness 6.3 mm 0.3 and compressed blank jigs were prepared.

Basic procedure

Jigs placed under the load cell and ready to be tested

Has difficulties on:

Understanding and differentiate the all the unfamiliar standard methods.

Clarify on how the machine is operated Adapting in working environment Test need to be repeated many times due to

several error

Challenges

Enhance common IT subject into more programming skills (Java C++ programming, Mat lab, AutoCAD )

deepen core subject Choose the right topic that more related to the

industry The study of quality control and quality assurance

should be insert in the syllabus

Suggestions