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> Tasman OnGrid™ 60cm > Zinc Whiskers Resistant |
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Products Zinc Whiskers Resistant
Zinc Whiskers are a small hair-like growth phenomenon that occurs on zinc electroplated metal bottom sheets (underside) of some woodcore type raised access floor panels and understructure components. Zinc electroplated passivated coatings were generally used to protect mild steel components from corrosion. The crystalline structure within the metal will attempt to relieve the internal stress by enlarging the structure through the growth of crystals. The growth path is outward and the material is literally pushed out of the surface of the metal. These crystalline growths are known as whiskers. Problem Most computer room access floors are old enough for zinc whiskers to be recognized as they have played havoc with computer room equipment, including clean power supply units. The whiskers growth over time and with sub-floor voids in most computer rooms used as ducts, the susceptible surface of the tile is within the supply airflow. Zinc whiskers are so miniscule, often no bigger than a few millimeters in length and a few thousandths of a millimeter in diameter that normal dust filters in computer equipment will not prevent them from violating the system. Zinc whiskers are unaffected by temperature or humidity. The whiskers are brittle, they can become dislodged easily if disturbed and once on the loose, they float freely and have the potential to become lodged in computer systems. Once inside the system, whiskers can be disastrous because zinc is a conductor of electricity. Zinc Whiskers can cause an electrical short if they come into contact with exposed printed circuit cards and electronic componentry. Short circuits can lead to equipment failure with undeterminable system downtime. To complicate the hazard the continually shrinking size of electronic assemblies has meant that the lead pitch (lead to lead) spacing on integrated circuits and other components is now so small that zinc whiskers have a much better chance of causing a short. Tasman's solution to Zink Whiskers Tasman Access Floors solution to zinc whiskers phenomenon is that all Tasman Access Floors systems understructure components are hot dipped galvanised steel to achieve lifetime protection against corrosion and therefore are free of zinc whiskers. Tasman’s range of Tascor Access Floor Systems are an innovative range of high performance steel/concrete composite panels which, when combined with a rigid understructure support, deliver a superior access floor system. The innovative Tascor Systems are designed to cover every different foreseeable application, and to achieve this we offer different types of steel/concrete composite access floor systems; The Unifix System, The Stringered System and The Freelay Systems. The combination of a wide range of steel grades and thicknesses, in conjunction with a range of concrete strength provides the most economic series of performance grades, capable of performing in the most demanding applications. You will achieve maximum performance and durability for the life of the interior space. All Tascor Systems specifications are designed to achieve a structurally sound access floor with a three times factor of safety and excellent stability, delivering peace of mind and offering your space flexibility for any future changes. All empty Tascor steel panel shells are treated with corrosion resistant protection, inside and out, to offer a thorough level of protection against corrosion. |