The hard plastic materials used across the world in different industries including automotive, electric, kitchen appliances, etc. are installed for the functioning & durability of these products as hard plastics are an affordable material that can withstand great impacts due to their impact-resistant properties as well as they possess anti-corrosive properties. The hard plastics are also lighter than metals & woods which makes it the foremost choice of manufacturers all across the globe.
However, with all the good qualities & physical properties that surpass the properties of other materials altogether, there are concerns over the impact resistance of these hard plastics as there are instances when they do not perform up to the mark when impacted with a strike. Since these materials are used in the production process of important machines that can hamper human life in case of compromises in quality, it becomes crucial to enhance the durability of materials against impacts.
Due to their exposure to the environment, these materials are also highly prone to accidents and hazards which even elevates the requirement of durability. To ensure such durable properties in a material, manufacturers evaluate hard plastics under a testing methodology discovered by Izod & Charpy (two great scientists) called the Izod and Charpy impact test.
The instrument is designed on the theory of the two scientists by the Presto Group on modern terms as the instrument is constructed with advanced features that ensure the safety of the operator, quick & seamless testing measures along with pinpoint accuracy.
Let us take a look at how the tests are conducted on hard plastics with the izod impact testing machine.
Conducting the Charpy Impact Test & Izod Impact Test
The lab testing instrument is designed with an ergonomic structure that improves the seamlessness of the test and allows the operator to achieve high levels of accuracy by conducting precision-based testing.
To initiate the Charpy impact test, the operator does not have to condition the specimen as this is conducted in a horizontal assembly of the specimen and it is also relatively bigger in size than the specimen getting tested in the Izod impact tester.
The operator has to position the specimen between the two clampers of the instrument and firmly clamp the specimen in order to ensure that it doesn’t move when struck.
After the firm clamping of the specimen, the operator has to now choose the hammer weight that ranges from R1 to R5, generating an energy of 1.1 joules to 21 joules. However, the Presto Group offers a provision to customize the hammer weights but as per the ASTM standards, the weights are provided along with the hammer.
The hammer is kept intact with the help of a brake pedal which is released when the specimen is positioned & clamped firmly. Once, the brake pedal is released, the hammer moves like a pendulum and strikes the specimen that is clamped between the grippers in a horizontal assembly, breaking the hard plastic sample into two halves.
The instrument is offered with a magnetic door that ensures the safety of the operator and others from the stricken half of the hard plastic sample as it might cause damage to somebody or something.
The energy exerted to break the sample is indicated on the microprocessor-based digital display associated with the control panel of the Izod impact test machine.
Similarly in the Izod Impact Tester, the instrument is conditioned with the help of a notch cutter provided as an additional accessory. The notch cutter carves out a 2.5mm v-shaped notch from the specimen. The specimen is then adjusted in such a way that the hammer strikes the sample exactly at the notch which allows the hammer to continue the already-carved specimen.
Another important aspect of the Izod impact tester to note is that the size of the sample is smaller than the size of the sample in the Chapry impact test. The hammer weights and the determination of the results on the digital display remain constant like the Charpy impact test.
This is how the operator can conduct both Izod and Charpy impact tests without any hassle and with absolute & pinpoint accuracy.
There are a lot of questions that arise in the minds of manufacturers pertaining to the two-way testing conducted by the lab testing instrument with precision.
Questions & Answers – Charpy Impact Test & Izod Impact Test
Ques. How can we calculate the durability of a material from the obtained test results?
Ans. The test results are obtained in the SI unit of joules as they determine the energy that was utilized to break the specimen into two halves or to continue the notch in the Izod impact tester. Therefore, the greater the energy applied durable the material is.
Ques. What are the key attributes of the Presto-made Izod Impact testing machine?
Ans. The Presto-made Izod impact testing machine is offered with top-quality features like a magnetic cover that safeguards the operator and surroundings from any damage due to the stricken hard plastic, feather touch controls, and a microprocessor-based digital display to encourage the operator in conducting single-handed tests and acquire precise test results, the instrument is also equipped with different weight assemblies generating energy of 1.1 joules to 21 joules, allowing the operator to conduct tests as per standard compliances as well as on highly durable materials.
Ques. What is the operating Mechanism of the Izod and Charpy impact test?
Ans. The Izod and Charpy impact tests are conducted upon the pendulum release mechanism as the hammer completes a motion in a pendulum’s movement after the brake pedal is released.
Conduct the Charpy Impact Test without Any Hassle
Get your hands on the top-notch lab testing instrument to conduct the Charpy impact test or the Izod impact test. You can get your hands on the top-notch equipment right away by reaching out to us via phone call at +91 9210903903 or by e-mailing us with suggestions & feedback at info@prestogroup.com.
