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Tinius Olsen - Testing Metal
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Friday, 12 April 2013 05:23 |
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 Ropes tend to have an explosive nature on failure and with sudden, violent breaks and it’s this explosive tendency that makes the strength testing of ropes very challenging. Any measurement system that directly contacts the rope must be robust enough to withstand these violent failures; typically this means the measurement system is heavy and/or bulky and could be a potential dangerous projectile when rope specimens undergo a violent break. For these kinds of tests, Tinius Olsen recommends the use of a non-contact video extensometer for the measurement of strain.  The Tinius Olsen video extensometer is ideal f or testing ropes on horizontal or vertical testing tensile testing machines since it employs a non-contacting technology and can be suitably placed away from the rope, or behind a clear plastic screen, to prevent damage to the extensometer however violent the rope break event. In addition, since the extensometer doesn’t touch the specimen, no localised stress points, that could induce a premature break, exist. The captured and stored video image of the test contains the full high resolution strain data and can be replayed to support further analysis, and can also be retained as the “permanent” test record. The Tinius Olsen video extensometer conforms to the international standards BS EN ISO 2307 and is compatible with both Tinius Olsen, and non-Tinius Olsen testing machines. To know more about our video extensometer, please click here. |
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Friday, 08 February 2013 11:22 |
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We're constantly asked about customizing our Super L test frames to accommodate different shapes and sizes of specimen, and indeed we have standard options available for the lengths of pulling screws and columns, but recently we had our first request, in 133 years, for a non-magnetic loadframe. A division of the Russian Academy of Science is performing a series of experiments to study the relationship between stress loading and magnetic fields, so having a loading frame, with a 60,000 lbf (300kN) capacity, made from steel was obviously going to have a detrimental effect on any magnetic measurements. Working closely with the customer, we developed a stiff loading frame that uses aluminum crossheads and were able to achieve the goal of no magnetic "interference" from the test frame during the course of their tests. 
On the left here you can see the machine in question with the aluminum crosshead; the same machine can be seen in the front in the photo on the right here, as a further example of the kinds of customization available, the machine next to it (all waiting to go into our paintshop) is also a 60,000lbf capacity Super L but has an adjustable height top crosshead on columns that are an extra three feet in length, with strategically placed locations for the top crosshead to be anchored. |
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Thursday, 29 November 2012 02:00 |
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 Impact Tests are used in studying the toughness of a material and is a very important phenomenon in governing the life of a structure. For example, in the case of an aircraft, impact can take place by a bird hitting a plane while it is cruising, or during takeoff and landing the aircraft may be struck by debris present on the runway, and as well as other causes.
 This is where Tinius Olsen makes its impact with testing capacity up to 542J. Manufacturers all over the world, extensively use Tinius Olsen Impact Testers to ensure the toughness and behavior of their products under different conditions. Since 1900, when impact tests gained importance, nothing has changed much in the basic physical characteristics of the test machine or test-procedure. It is a Pendulum-type single-blow impact test in which a notched test piece is normally employed and the two methods in general use are either the Izod or Charpy test. But what makes Tinius Olsen impact testers unique is the data acquisition ability, quality testing, robustness and accuracy.  The test specimens used are in accordance with NIST (National institute of standards and technology) norms and the testers are designed to fully comply with the specifications outlined in ASTM E23, EN10045-2, and ISO 148 and are frequently used for quality control, R&D and material acceptance purposes. The test result is usually reported as the energy (in ft., lbs. or KJ.) required fracturing the test piece.
For more information on Impact testing and Tinius Olsen Impact Testers, please click here |
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Thursday, 29 November 2012 23:23 |
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 Today, in this smart world we are having many smart devices around us and smart card is one them. They are proving to be much in demand with proximity readers with their increasing use as means of E-commerce, healthcare informatics, bank issued smart cards (credit cards/debit cards), SIM cards for mobiles and Personnel Identification really starting to cross from industrial/commercial use into personal use e.g. home entry, auto start cars and recall of personal settings, loyalty programs in retail, securing digital content etc.
 One of the important aspect that manufacturers worldwide take care of is that the smart cards need to be physically enduring devices. Using a Tinius Olsen testing system (H5K or H10K), thorough analysis of a smart card’s physical strength can be done. It is possible to subject smart cards to a range of physical strength tests including; bend/flex, tear, peel and "Chip" to card bond strength. The tests performed are in accordance with the international standard ISO-IEC 10373-3.
TO testing machine with test specific grips HT55/S460/S997 holds the smart card and apply the test forces either to destruction to determine the maximum strength capability or non-destructive but repeatedly loaded i.e. a cyclic test to analyze the performance. Through the Tinius Olsen test and analysis software HORIZON, smart card manufacturers and users can set up Pass/Fail limits for each parameter tested; the system automatically tests the smart card performance against these limits and reports performance. For more information on test specific gripping solutions, please click here. |
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Monday, 15 October 2012 00:40 |
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 Springs have been a crucial part of Human Lives since the industrial revolution and when most people try to picture a spring, compression/tension springs are the kind that come to mind. They are widely used in various applications ranging from automotive engine, vehicle suspensions and large stamping presses to major appliances and lawn mowers to medical devices, cell phones, pens, electronics and sensitive instrumentation devices.
 Ensuring the quality of springs has always been a priority for spring manufacturers and they undergo various ranges of compression/tension forces as they are tested to ensure they will do the job they have been designed for.
 One problem that commonly occurs in spring testing is buckling of the spring under compression forces. Tinius Olsen engineers came up with a solution that uses a supporting post fitted to the lower compression platens to center the spring and provide support during the initial onset of compression load. This configuration can be easily applied with a standard S or T series testing machine from Tinius Olsen and works best for short, wide or stiff springs.
However if the spring to be tested is particularly long, there’s a need for a support post which goes the full length of the spring and therefore needs to go through the cross head; the solution is a machine configuration where the load cell is mounted on the machine base and the support post can pass through the crosshead as it compresses the spring which prevents the spring form buckling and gives accurate Test Reports. This configuration works best with a standard U-series TO machine. For more information on Compression/Tension testing machines, click here |
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