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Our Facilities

 
                  1. Testometric Tensometer with advanced software system.

Determination of tensile stress strain properties .

- Tensile stress strain properties is the most common test the rubber industry for Quality Control .
- The principle is essentially a dumbell shaped , test pieces are strained at a constant rate of traverse , and force and corrresponding extensions recorded . The forces reading are expressed as stresses by reference to the original sectional area of the test piece .
- The following measurements can be be taken from a stress/strain curve for rubber :
  1. Tensile strength ( Stress at break ) - The maximum tensile stress reached in stretching tensile test piece to breaking point.
  2. Elongation at break ( Strain at break ) - Then tensile strain in the length at breaking point
Young's modulus : Ratio of  stress to strain. The value can be obtained from the linear portion of the curve of the order of few percent.

Determination of tear properties .

- In a tear test , the force is not applied evenly but concentrated on a deliberated flaw or sharp discontinuity and the force to continuously produce a new surface is measured.
- This force to start or maintain tearing will depend in rather a complex manner on the geometry of the test piece and on the nature of dicontinuity .
- The initiation and propagation of a tear is a real and very important factor in the failure of rubber products.
- Tear strength is calculated as Ts= F/d , where Ts is the tear strength in N/mm , F is the force and d is the thickness.

 
                  2. Gotech Rheometer : Testing of rheological properties of rubber.

Determination of Cure Characteristics of Rubber

- The process of vulcanising the compounded rubber is important for the determination of mechanical properties .
- The basis fo vulcanisation is chemical bonding by means of sulphur and accelerator under pressure and elerated temperature.
- A test piece of rubber is contained in a sealed test cavity under pressure and elerated temperature.A biconical disc is embedded in the test piece and is oscillated through small amplitude.This action exert a shear strain on the test piece and the force ( torque ) required to ascillate the disc depends on the stigness ( shear modulus ) of the rubber .
- The stigness of the rubber increase as vulcanisation proceeds. The curve is complete when the recorded torque rises either to an equilibrium value or to a maximum value.The time required to obtain a vulcanisation curve is a function of the test temperature and the characteristics of the rubber compound.
- The following measurements can be taken from the recorded curve of torque as a function of time .
ML - Minimum torque , dNm ( lbf.in )
MH - Maximum torque , dNm ( lfb.in )
ts2 - Scorch time , min.
tx - cure time , min.
Cure rate index - 100 / ( cure time - scorch time )
 
                  3. Zwick Universal Testing Machine.

Determination of load-deflection characteristics .

    - Determination of load-deflection characteristics are usefull in comparing stigness of rubber material in compression , shear and tension .
    - They can be used by rubber technologists to aid in development of materials for engineering application.
    - The characteristics of the rubber parts can be observed from the load-deflection curves such as stigness , force at required deflection , hyoteresis , flexibility , bonding strength and etc .
     
                      4. Maplan Press

    Maplan          : MTF600 / 460

    Platen Size   : 710 x 800 mm

    Volume          : 6 Litres

    Tonnage        : 460

    -The Maplan MTF 600/460 is a new addition to GMT line of injection preses.
    -This press, one of it's kind in Malaysia, can cater a total volume of 6 litres of compound per shot.
    -This will be ideal for the production of Railway / Engineering products.

     
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