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Automated Friction "Pinch" testing of Hydrophilic Coatings on Catheters

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These days angioplasty, is an endovascular procedure to widen narrowed or obstructed arteries or veins, is almost considered a routine procedure, yet the technology behind it is exacting and subject to rigorous quality and performance control. In this procedure a n empty, collapsed balloon, known as a balloon catheter, is passed over a wire into the narrowed locations and then inflated to a fixed size. The balloon forces expansion of the narrowing within the artery or vein and the surrounding muscular wall, opening up the blood vessel for improved flow, and the balloon is then deflated and withdrawn. A stent may, or may not, be inserted at the time of ballooning to ensure the vessel remains open. Not only are the stents themselves, and the wire used in their construction, tested for tensile strength, compressive strength and stiffness properties, so too are the balloon catheters used to deliver the stent into the body. In recent times, more attention is being paid to...
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Tinius Olsen the System of Choice for Major Indian Railway Manufacturer

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One of our most reliable hardness testing systems is the system of choice for one of India’s leading manufacturers of rail wheels, axles and wheel sets.  The Rail Wheel Factory, formerly the Wheel and Axle Plant of Bangalore in the Karnataka region of the country, has utilised a Tinius Olsen Air-o-Brinell hardness tester for a great many years and is one of the most popular testing systems the company has produced. The A-o-B is configured into the RWF assembly line so there was no need to set up tests separately, with wheels passing the assembly line to be tested at point. They are then rolled over to another section of the assembly for completion. As a part of Tinius Olsen’s continuing service, we offered RWF one our new generation FH13 hardness testers (Brinell Head only) as an up-grade but the A-o-B has proven such an      efficient and economical solution, the company decided to up-grade/refurbish this machine instead. RWF is a state of th...
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Tube Squeeze Force Test

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Interesting application; testing and verifying the force required to squeeze a material, in this case an adhesive, from its tube. The accessory applies a squeezing force using a roller set as the tensile frame applies the squeezing motion by pulling the tube up through the rollers. The speed of the pull/squeeze can be accurately defined as required. The output is a graphical representation of the test showing force against movement and time. Forces of interest are automatically captured and reported be it the start force, mid point or just before the tube empties. Through testing like this, manufacturers of tube-based products can prove out the quality of their packaging and ease of use.  #InterestingTech #MaterialsScience  
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