- Primetals Technologies to upgrade power and electrical system at slab sizing press with new cycloconverter and low-voltage AC drives
- Modernization will ensure increased availability and future-proofed supply of spare parts
- Implementation scheduled for December 2024
Salzgitter Flachstahl, a subsidiary of the Salzgitter Group, has recently tasked Primetals Technologies with a comprehensive upgrade of its power and electrical system for the slab sizing press in its hot-rolling mill in Salzgitter, Germany. Primetals Technologies won this order following the completion of a successful crop-shear project at the same mill.
Increased Availability
The slab sizing press was designed to reduce pre-heated slabs in width, by up to 350 millimeters. The equipment’s drive technology is divided into two groups: the main drive, fed by a direct converter, and the supporting drivers, provided via DC-link converters featuring a common DC-link. This project will renew the converter technology for all the drives in both groups, and is aimed at increasing the availability of the production line while ensuring secured spare-part supply conditions for the power and electrical system.
The scope of supply encompasses a new cycloconverter for the main motor of the press, new low-voltage multi-drive DC-link converters for the pinch rolls and for gap adjustment, as well as implementation and startup services. The replacement of the drive systems will take place during planned standstill periods.
A Strong and Long-Lasting Partnership
Primetals Technologies and Salzgitter Flachstahl have collaborated on numerous projects over the last few decades, all the while building a strong and dependable relationship. As an example, Primetals Technologies recently improved the LD converter (BOF) process by executing a Level 2 automation upgrade, resulting in an optimization of lime quantities and an increased number of successful heats. Salzgitter Flachstahl is the largest subsidiary of the Salzgitter Group and produces hot-rolled strip, hot-rolled sheet, cold-rolled sheet, and surface-finished products at thicknesses from 0,4 to 25 millimeters and widths of up to 2,000 millimeters.
Salzgitter Flachstahl has invested in an automation upgrade from Primetals Technologies for a part of its hot-rolling line. Photo copyright: Salzgitter AG.
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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