5,5 - 22 Joules Impact Tester

Both Charpy and Izod impact testing are popular methods of determining a material's impact strength or toughness. In other words, these tests measure the total amount of energy a material can absorb. This energy absorption is directly related to the brittleness of the material. Brittle materials like ceramic or glass tend to have lower absorption rates than ductile materials like copper or aluminum.

Understanding the energy absorption properties of a material is important because it predicts how much plastic deformation the material can withstand before catastrophic failure. It is also important to understand the similarities and differences between these two common impact testing methods.

Charpy unnotched impact strength , the impact energy absorbed when breaking a non-notched test specimen (relative to the original cross-sectional area of ​​the test specimen.

Charpy notched impact strength , acN, impact energy absorbed by a notched test specimen when breaking.

An edge blow is a blow made in a direction parallel to its size. Impact test is made on the narrow surface in the longitudinal direction of the sample.

Blow by the flat , the blow made in the direction parallel to its size. The large surface in the longitudinal direction of the impact test specimen is made on it.

Vertical impact , (layered-reinforced plastics) impact is perpendicular to the reinforcement plane

Parallel impact , (layered-reinforced plastics) impact is made in the direction parallel to the reinforcement plane

Charpy Impact Test

The test apparatus consists of a weighted pendulum dropped from a certain height to make contact with the sample. The energy transferred to the material can be deduced by comparing the difference in the height of the pendulum before and after the fracture.

A Charpy test specimen placed horizontally on the machine is typically an 80 x 10 x 4mm material with a machined notch on one of the faces. This notch, which can be V-shaped or U-shaped, is placed facing away from the pendulum and helps concentrate stress and encourage fracture.

The Charpy impact test is most commonly performed for ASTM E23, ASTM A370, ISO 148 or en 10045-1. While testing is most commonly performed on metals, there are a number of standards that exist for plastics and polymers, including ASTM D6110 and ISO 179-ISO 180.

Izod Impact Test

The test apparatus and specimen design are very similar to the charpy effect, with some important differences including the orientation of the specimen, which compresses the apparatus vertically with the pendulum's notch facing toward it. The pendulum then impacts the sample in a specific area on the notch.

One of the main differences of the Charpy impact is that the Izod impact test can be performed on plastic or metallic samples. Plastic specimens are typically 64 x 12.7 x 3.2 mm rods with machined V-shaped notches. Metallic specimens are usually 127 x 11.43 mm bar round with 1 or 3 machined V-shaped notch(s).

Common Izod impact test methods include ASTM D256, ASTM E23, and ISO 180.

Product features

LABOMAK CHARPY-IZOD IMPACT TESTER

STANDARD FEATURES

• Easy and long-lasting use with 4.3″ touch screen,

• 150 º drop angle,

• 3.8 m/s falling speed

• CHARPY: 0.5, 1.2, 4 ,5 7.5, 15, 25, 50 J HAMMERS/ ISO 179-1 IS COMPREHENSIVE

• IZOD: 1, 2.75, 5.5, 11, 22 J HAMMERS/ ISO 180 EXTENSIVE

• Electronic drop mechanism

• Automatic hammer braking feature

• Electronic hammer calibration

• Protective visor frame

ADDITIONAL FEATURES

* Possibility of special program software according to user's request
* Manufacturing of hammers in desired capacity

TECHNICIAL SPECIFICATIONS

* Height: 80 cm
* Width: 75 cm
* Depth: 35 cm
* Weight: 120 kg
* Working Voltage: 220 VAC. * 0.2 kW