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TECHNICAL INFORMATION |
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Many different urethanes and additives were extensively tested in order to find the most wear resistant materials for use in our cups and disks. This page outlines some of our testing methods and results. |
Abrasion testing |
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The abrasion testing machine was designed to simulate the wear on different materials when they are subjected to movement against an abrasive surface.
Urethane samples were placed in a holder on the top of the tester, and sufficient force was applied to each sample to provide an average pressure of 10psi between the surface of the urethane and the abrasive surface. Then, the testing machine was then set to simulate a speed of 3.66 ft. per sec.
The abrasive severity was supplied by 2 identical #80 grit grinding belts commonly found in a metal fabricating shop. |
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Abrasion Tester |
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The LINEBOAR material was recently tested against several samples of urethane at the 2008 Pigging Conference in Houston, Texas.
In each of the tests shown below, a sample of LINEBOAR urethane was placed on one side of the tester. Visitors were allowed to pick a urethane sample to place on the other side of the tester. They were also allowed to choose which side each sample would be placed on. |
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Before |
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After 5 tests |
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Before |
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After 1 test |
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A time limit for each test was set at 15 minutes. Samples of the LINEBOARŪ product and samples of other urethanes readily available on the market were run simultaneously under exactly the same criteria. Using a digital caliper , each sample was measured for thickness before and after each test. |
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When compared to the LINEBOAR samples, results consistently showed that the standard urethanes lost 5 to 10 times the volume of material, depending on which urethane sample was tested.
In about 30% of the tests , the standard urethane sample did not survive to complete the full 15 min. test. |
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Results |
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The best performing samples were comprised of urethane embedded with highly wear resistant strips. These are the materials that are now used in LINEBOAR cups and disks.
Test results varied between all the urethane samples that did not contain the embedded abrasive resistant belts. |
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The LINEBOAR sample pictured to the right was run consecutively against each of the samples pictured below.
Even after all 5 tests, LINEBOAR sill lost less urethane than the other samples lost in a single test.
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LINEBOAR A HOG FOR PUNISHMENT |
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ORDINARY URETHANE |
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LINEBOAR |
