ASTM D (D ) covers multiple properties of O-Rings. Part of the specification includes tension testing for determining the breaking. AMS and MIL-R Type 1 Class 1 Typical Values. Hardness, Shore A, ASTM D 90 ±5. Tensile Strength, psi, ASTM D min. ASTM D Standard Test Methods for Rubber O-Rings.
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D1144 gripping – When testing straight specimens or single strands, pneumatic side action grips with serrated or rubber coated faces are the preferred gripping configuration. Subscribe to Instron News!
Rings under tension in high temperature environments can experience something called the Gough-Joule effect where they tend to contract in this scenario. How can we help you? The fixture ships complete with a power adapter for both US and International power outlets.
Fixture – The standard specifies a fixture consisting of two spools to hold an o-ring while under test. The constant gripping force prevents specimen slippage while under test.
Elongation and tensile strength are the two main calculations. Bluehill LE for Basic Testing. This simple circular elastomer design is interesting since O-rings are e1414 in so many sealing applications. Next Checking to see if you are a returning visitor….
ASTM D1414 Rubber O-Rings
Specimen gripping Specimen slippage Calculations Our solutions: The Rubber O-Ring test standard uses a special motorized fixture that atsm at fixed speed throughout the test. In some cases, a special type of oil may be used to alleviate friction between the ID of the O-ring and the grip surface.
Contact Us View Accessories Catalog. Cracking, flaking, general brittleness, and other characteristics can appear in the rubber O-rings when they are exposed to temperature cycles and solar radiation. Some advanced calculations including elongation modulus can also be derived from the data. ASTM D specifies the procedures for determining aatm physical properties of o-rings. The fixture can use interchangeable d1144 at different sizes. Check this box to receive pertinent commercial email from Instron focusing on products, upcoming events, and more!
The rotation keeps localized stress moments on the sample to a minimum. Alongside Gough-Joule, quality managers may age their rubber specimens inside an environmental conditioning chamber to test other parameters.
Top top grip has a counterweight to allow for even loading. Our Series or Series universal testing systems can easily be used to perform the tests laid out within this standard. Designed for testing elastomeric materials in the form of rings, these fixtures avoid local stress concentrations by using a lower spindle that is rotated by a toothed belt driven adtm the moving crosshead. Asstm specimens can be tested as whole rings or as straight, cylindrical specimens.
Software for Series Systems. Email addresses must contain the symbol. The standard sizes that Universal Grip carries are 3. If your O-ring specimens fall within the allowed criteria, they can be tested with a static fixture.
Rubber bands are also commonly tested under this standard to test their tensile strength and elongation characteristics.
ASTM D – Rubber O-Ring Testing Fixture
Pre-canned test methods are also available for both o-ring and straight specimens to make setup time faster zstm easier. Email addresses can only contain letters, numbers and the following special characters: The upper spindle rotates freely and the rotation frequency of the lower spindle is easily selected by moving the toothed belt from one pulley to another. Our Series Elastomeric “O” Ring Test Fixtures were designed to accurately meet the requirements, and conveniently avoid the need for lubricants or d141 power motors.
Glossary of Materials Testing Terms. Please confirm that you agree with our privacy and cookies policy to submit this form.
In some cases, Instron elastomeric rubber grips have also been found to work well. It is recommended that groups of samples are tested and the data is compared using a method similar to Statistical Process Control. Concrete, Asphalt and Rock.
ASTM D Rubber O-Rings – Instron
Static rubber rings are used for gas sealing and specialized applications including vacuums. Consideration needs to be made for the fixture geometry spool separation and diameter as well as specimen geometry. They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator.
WaveMatrix 2 for Dynamic Testing.