- Replacement of the obsolete cycloconverter drive to maintain the availability of the finishing line
- Risk-free switchover between new and existing cycloconverter system
Salzgitter Flachstahl GmbH has commissioned Primetals Technologies with the replacement of the existing cycloconverter drive system for the crop shear installed on the finishing mill of the Salzgitter (Germany) production site. The aim of the project is to maintain the availability of the finishing mill by replacing the obsolete cycloconverter drive with a new cycloconverter drive. When replacing the existing cycloconverter drive system, the customer's request is realized to build the new system switchable in parallel to the existing cycloconverter in order to ensure a risk-free replacement with short downtime. The project is scheduled to be completed in November 2021.
The scope of delivery of Primetals Technologies includes the complete electrical replacement of the cycloconverter. Further, the order includes the delivery of a new control room panel, the creation of additional visualization screens and diagnostic options, as well as the integration of the new drive system into the existing cutting sequence control of the finishing mill.
Salzgitter Flachstahl is the largest steel subsidiary in the Salzgitter Group. More than 5,500 employees produced around 4.3 million tons of crude steel in 2019. The main customers for the flat products are vehicle manufacturers and their suppliers, tube and large-diameter tube manufacturers, cold rolling mills and the construction industry. In an integrated steel mill, the company produces hot-rolled strip, strip steel, strip sheet, cold-rolled sheet and surface-finished products with a thickness between 0.4 and 25 mm and a width of up to 2,000 mm. The production program includes drawing, deep-drawing and special deep-drawing steels, structural and fine-grained steels, as well as high-strength and ultrahigh-strength steels.
Salzgitter Flachstahl finishing mill in Germany. Primetals Technologies modernizes the direct converter drive of the finishing mill crop shear. (Image courtesy Salzgitter Flachstahl GmbH)
プライメタルズ テクノロジーズ （Primetals Technologies）, は本社を英国、ロンドンに置き、金属鉄鋼産業におけるエンジニアリング、プラント建設、およびライフサイクルサービスの提供を行うパイオニアかつ世界的リーダーです。 当社は電機、オートメーション、デジタライゼーション、及び環境の総合ソリューションを含めた技術、製品、サービスの一式を提供しており、 原材料から完成品まで鉄鋼のあらゆる分野を網羅するだけでなく、非鉄分野でも最新の圧延ソリューションをお届けします。 当社は三菱重工グループ100％出資によるグループ会社で、従業員数は全世界で約7,000人です。 詳しくは、下記URLより当社公式ウェブサイトをご覧ください。www.primetals.com.
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