Monday, 28 September 2015

Tinius Olsen Listening to Our Users – New Feature in Temperature Chamber

At Tinius Olsen Testing Machine Company we try to constantly listen to our product users and where possible evolve our products to capture suggested improvements in support of efficient materials testing and product use. One such idea which we have implemented is the use of removable inserts in the chassis of our temperature chambers, top and bottom. This allows the user to remove the inserts and then easily slide the temperature chamber back, on its rail support system,  away from the testing machine test area without removing the test specimen grips/holders and tie rods which can stay in place.

This feature implemented in the Tinius Olsen chamber model ref 99-1005790 significantly reduces downtime when the testing machine and its tooling are reconfigured for a change in test or test specimen type, enabling the chamber to be quickly removed from or pulled back into the test area and test equipment configuration.

Pictures illustrate the removable temperature chamber chassis inserts in TO model 99-1005790

For more information, pictures, video clips and FAQ on our accessory handling systems and accessory options in support of our Tension Compression materials testing machines click here

For an interactive product overview click here 

Friday, 7 August 2015

Tinius Olsen Horizon Materials Testing Software is Windows 10 Compatible

Our Tinius Olsen Horizon materials testing software keeps pace with technology now Windows 10 compatible, it is a fully touch screen enabled platform supporting efficient quick use. As a platform it is compatible with all our current and many of our past materials testing machines; Tension Compression machines, Impact, Torsion, Melt Flow, HDT, Vicat and more.

As you would expect Horizon is packed with standard features to maximise its focus on meeting a user’s specific needs; Configuring tests, totally flexible results reporting on and off line, full integration capability with users company wide data, measurement, recording and network platforms, on line tech support, multiple license capability in support of results analysis and connection to multiple testing machines enabling results to be drawn into a central storage, recall and reporting function.

Want a demonstration? Want to learn more? Contact us @ Tinius Olsen Testing Machine Company 

Monday, 3 August 2015

Laser Extensometer Technology

At Tinius Olsen we have a range of extensometer technologies, LVDT, strain gauge, encoder, video and laser. Each technology base has its strength and weaknesses hence the range and is selected because of its performance for a particular application, material to be tested and users ROI. A laser extensometer such as the Tinius 500L uses a helium neon class two laser, which means it’s very safe for use in a lab and does not require any special safety precautions. The natural blinking of the eye provides protection although we don’t recommend you look directly at the laser, frankly there is no need and it would not be easy when configured with a Tinius materials testing machine.

The 500L scans the test specimen 320 times per second and automatically measures the “Gauge length – L0” it does this by capturing the reflection from two reflective marks placed on the test specimen, the leading lower edge of which is actually captured (not the whole width of the tape mark). As the sample is stretched by the tensile test the differential movement between the marks is instantaneously captured and reported as strain %. 

The 500L has a resolution of 12µm which means being a non-contacting technology it is ideally suited for high strain materials such as elastomers (rubber and the like) which may have a violent break and could therefore damage a contacting type of extensometer and or where the specimen is required to be tested at cold or elevated temperatures in a chamber. The laser light can pass through chamber door glass windows (even triple glazed) similarly the reflected light takes the same return path thus zero distortion.

The Tinius Olsen system uses heat resistant reflective tape which sticks to the specimen yet does not cause interference with the materials performance and therefore the results for Stress and Strain. However occasionally we come across materials where the reflective tape marks will not stick, such as a latex rubber with an oil based release agent on it. The solution is two small very light weight spring clips, we bond the reflective tape marks to the clips (using heat resistant adhesive), the user simply attaches the clips to the test specimen. The clips are reusable and can be produced with varying clip pressure as required. 

When used with a temperature chamber the 500L mounts conveniently on the chamber door, so it is instantly ready for use. Configuration, set up and gauge length measurement is automatic under the control of the Tinius Horizon materials testing software.

See clip showing a test with the 500L extensometer beam of light focused on the test specimen.


Want to learn more or see a demonstration contact us.

An extensometer is a device used to accurately measure strain %, in a tensile mode, relative to the initial test specimen length as typically defined by two “gauge marks” located on the specimen, which in the case of a dumbbell shape are defined within the reduced section.

Thursday, 30 July 2015

800J Metal Impact Tester with Patented Technology

Tinius Olsen’s model IT800 impact tester is an 800 Joule pendulum impact tester used to determine the impact strength of notched bar metal materials. The IT800 uniquely features a Tinius Olsen designed and patented “Active follower” technology in support of fast efficient testing, whereby the moving pendulum is caught immediately the test is complete and quickly returned to its safe holding position ready for the next test. The active follower technology does not use a clutch based motor system and therefore is designed for high throughput of tests in a heavy industrial environment requiring nominal servicing and maintenance.

Check out the light curtain in this clip click here

Additionally fast test throughput is supported by the digital “light curtain” option, this option replaces a conventional door to the enclosed test area permitting the user to quickly insert test specimens in the Charpy holder without the need to physically open and close a door, this is particularly efficient when testing cooled notched specimens. From a safety perspective the light curtain if broken by an operator during a test instantly causes the active follower to arrest and halt the moving pendulum thus ensuring operator safety, in fact breaking the light curtain is easier and faster than hitting an emergency stop button (which is still present).

Check out the technology click here 

Sunday, 19 July 2015

Successfully Holding Tensile Specimens Cut From Plastic Pipes

When conducting tensile tests on sections cut from plastic pipes, the resulting test specimen dumbbell shape (dimensions of which are defined by the relevant test standard be it ISO, ATSM, GB, GOST etc) exhibit the curve of the pipe, this means it cannot generally be held for the duration of the tensile test using flat parallel grip faces as the curvature of the specimen prevents a good amount of contact between the specimen and the grip faces.

The solution from Tinius Olsen is a clamp grip with specimen gripping faces profiled in shape to match the curvature of the test specimen;

For more information and insight into the physical testing of plastics to determine strength and performance check out  Click here