Introduction to Bursting Strength Tester : It’s Working & Features
Bursting strength is an important property of many materials, especially those used for packaging, paper, and textile products. It measures the resistance of a material to rupture when subjected to an increasing internal pressure. Bursting strength is often used as an indicator of the quality, durability, and performance of the material under various conditions.
To measure the bursting strength of a material, a device called a bursting strength tester is used. A Bursting Strength Tester is a testing instrument that applies a controlled hydraulic or pneumatic pressure to a sample of the material until it bursts. The pressure at which the sample bursts is recorded as the bursting strength of the material.
In this blog post, we will introduce the basic concept, working principle, and features of bursting strength testers.
What are bursting strength testers?
Bursting strength testers are specialized testing equipment designed to simulate and accelerate the rupturing process of a material when exposed to internal pressure. They are widely used to evaluate the bursting strength of various materials, such as fabrics, papers, boards, plastics, etc.
Bursting strength testers can be classified into two types based on their testing methods: diaphragm method and ball burst method.
Diaphragm Method: This method uses a rubber diaphragm to apply pressure to the sample. The sample is clamped between two circular plates with grooves on their surfaces. A rubber diaphragm is placed below the lower plate and connected to a pressure cylinder. The pressure cylinder pumps air or water into the diaphragm, which expands and pushes against the sample. The pressure is increased until the sample ruptures. The pressure at which the rupture occurs is recorded as the bursting strength of the sample.
Ball Burst Method: This method uses a steel ball to apply pressure to the sample. The sample is clamped between two plates with holes in their centers. A steel ball is placed on top of the upper plate and connected to a load cell. The load cell applies a downward force on the ball, which presses against the sample. The force is increased until the sample ruptures. The force at which the rupture occurs is recorded as the bursting strength of the sample.
How do bursting strength testers work?
The working principle of Bursting Strength Tester Machine is based on applying a controlled pressure to a sample until it bursts. The pressure can be applied by using a rubber diaphragm or a steel ball, depending on the type of tester. The process is closely monitored by using sensors, indicators, and displays that record and show the pressure, force, time, and other parameters of the test.
The general working procedure of bursting strength testers is as follows:
• Check the calibration status of the tester and calibrate it if necessary.
• Switch on the tester and select the testing mode, unit, and type of sample.
• Adjust the clamping pressure and zero setting of the tester.
• Cut a sample of 90 x 90 mm size from the material to be tested and place it on the lower clamp with the area to be tested centrally located.
• Close the upper clamp and secure the sample between the two plates.
• Start the test by pressing a button or pedal.
• Observe the pressure or force indicator and wait for the sample to rupture.
• Stop the test and record the pressure or force at which the rupture occurred.
- Remove the ruptured sample and repeat the test with another sample if required.
What are the features of Bursting Strength Testers?
Bursting strength testers have several features that make them suitable for testing various materials under different conditions. Some of these features are:
• Enclosed chamber: Bursting strength testers have an enclosed chamber that prevents air leakage and contamination during testing.
• Clamping system: Bursting strength testers have a clamping system that holds the sample securely and uniformly between two plates with grooves or holes on their surfaces.
• Pressure or force system: Bursting strength testers have a pressure or force system that applies a controlled hydraulic or pneumatic pressure or force to the sample through a rubber diaphragm or a steel ball.
• Sensor system: Bursting strength testers have a sensor system that detects and measures the pressure or force applied to the sample during testing.
• Display system: Bursting strength testers have a display system that shows important information about the test parameters and results, such as pressure, force, time, unit, type, etc.
• Data logging system: Bursting strength testers have a data logging system that records and stores data about the test results and conditions for future analysis and reference.
- Communication port: Bursting strength testers have a communication port that enables users to connect them to computers or networks for remote control and monitoring.
What are the benefits of bursting strength testers?
Bursting strength testers offer several benefits for testing various materials under different conditions. Some of these benefits are:
• Simplicity: Bursting strength testing is a simple and straightforward method that does not require complex equipment or procedures.
• Cost-effectiveness: Bursting strength testing is a relatively inexpensive method that can provide reliable and reproducible results.
• Standardization: Bursting strength testing is a widely accepted and standardized method that can be performed according to various national and international standards and specifications.
• Versatility: Bursting strength testing can be applied to various materials, such as fabrics, papers, boards, plastics, etc. It can also be used to compare the performance of different materials or coatings under the same conditions.
- Acceleration: Bursting strength testing can accelerate the rupturing process and provide results in a shorter time than natural exposure tests.
Conclusion
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