Understanding the role of abrasives used in the multi-wire sawing process


By Oliver Anspach, Researcher, PV Crystalox Solar Group; Alexander Lawerenz, Head of the Photovoltaics Department, CiS Forschungsinstitut für Mikrosensorik und Photovoltaik GmbH

As polysilicon producers perform expansions and upgrades to increase production and improve operations, plant safety remains critical. Companies should routinely review their safety policies and effectively plan their projects to ensure uninterrupted product supply and create a safe environment for employees and the communities in which they operate. Both the design and the execution of expansion and upgrades to projects are critical as companies strive for minimal down time so that productivity is not affected. Such hazards and scenarios that may hinder and delay start-up, specifically in relation to polysilicon plants, are highlighted in this paper. Furthermore, the paper outlines how best to avoid these situations, offering methods of execution to achieve the three key measures of success: safety, high purity and minimal downtime.

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The sixth edition of Photovoltaics International was published in November 2009 and includes a special BIPV focus. In addition, the Thin Film section offers a comparison of different ceramic Al-doped ZnO target materials by Fraunhofer IST, and Q-Cells unveils its production technology roadmap for boosting cell efficiences in Cell Processing.

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