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Article History

Accepted: 5 January 2024

First Online: 28 May 2024

Declarations

:

: The authors declare no competing interests.

: 1. Project description (in Danish) sent to engineer Camilla Mortensen, DDS, 21 March 1997:2. Information letter (in Danish) to staff at the Steel Plant, posted 14 April 1997:‘Arbejdsanalyse på Det Danske Stålvalseværk3. Quoted informants were given the manuscript as it was being finished in 2021-22. Former shop steward Jørgen Andersen replied (in Danish)::

: No conflicts of interest to be declared.

: Introductions to ladle furnace technology, internal course materials, c. 1985 ‘Periodiske system’‘Periodiske system’.‘Stålkvaliteter’, by HEN/BiJ, 1 October 1985.‘Stålets følgestoffer’, by HEN/BiJ.A collection of specifications of ladle furnace construction and functionalities.Introductions to the metallurgy of steel, internal course materials, c. 1990Emne 1: Stål og stålprodukter’ [’Steel and steel products’], by Jan Tyberg Jensen and and Jens-Erik Engelbrecht.Emne 2: Skrot og andre råmaterialer’ [’Scrap and other raw materials’], by Jan Tyberg Jensen.Emne 3: Smeltning’ [’Melting’], by Jan Tyberg Jensen.Emne 4: Skeovnsbehandling’ [Ladle furnace treatment’], by Jan Tyberg Jensen.Emne 5: Støbning og adjustage’ [Casting and adjustment’], by Jan Tyberg Jensen.Emne 6: Valsning og prøvning’ [Rolling and testing’], by Henrik Kudsk and Steen D. Jensen.

: DDS-skeovn: Funktionsspecifikation, rev. 1.3’, 20 August 1985. [Specification of the Ladle Furnace control system].Skeovn’, 7 January 1986. [Introduction to ladle furnace technology].Om slagge – som vi ser den’, c. 1986. [Instructions on working with slag at the Ladle Furnace, written by shop steward Jørgen Andersen].Winkel, C.: ’Noget om, hvad vi putter i stålet …’, En samling af metallurgiske artikler fra personalebladet Stålglimt [c. 1990]. Samlet i forbindelse med sammenlægningen af Metallurgiafdelingen og PT-afdelingen l. Oktober 1993. Artiklerne er alle skrevet af Overingeniør C. Winkel. [’Something about what we’re adding to the steel…’ A collection of metallurgical articles by chief engineer C. Winkel published in the DDS’s internal newsletter c. 1990].Processpecifikation: Nedsmeltning og raffinering i elektroovn’, DDS, 1 May 1996. [Instructions on melting and refining in EAF].Processpecifikation: Raffinering - skeovn’, DDS, 14 October 1996. [Process specification: Refining – ladle furnace].Udskrift af bestillingstyper’ [Printout of order types], printed 4 July 1997, 254 pp. [the catalogue of product protocols represented in the Ladle Furnace control system].Dansteel Engineering: IT-Handlingsplan for Ståldivisionen: IBA-rapporter for sektioner. SR 1998, 97-039-T, AN Industry Consult A/S. [Main author: Steen Reggelsen].Dansteel Engineering: IT-Handlingsplan for Ståldivisionen: Projektbeskrivelse., Konsolideret. rapport, Arkitektur, Handlingsplan, PKS, Teknologistandarder, Ordliste. SR 1998, 97-039-T, AN Industry Consult A/S. [Main author: Steen Reggelsen].

: Interview with Jørgen Andersen, former shop steward at DDS Steel Plant and fm. chairman, SiD Frederiksværk [local branch of General Workers’ Union], Denmark. Recorded 3 July 2006.