U radu se prikazuju rezultati istraživanja ustroja i djelovanja pogona/OOUR-a Visoke peći Željezare Sisak u razdoblju od 1946. do 1995. godine. Djelovanje i razvoj Visokih peći može se, s obzirom na status i pravni položaj unutar poduzeća Željezare Sisak, podijeliti na pet razdoblja: od 1946. do 1966. godine, od 1967. do 1972. godine, od
1973 do 1989. godine, od 1989. do 1991. godine te od 1991. do 1995. godine. Rezultati istraživanja temelje se na analizi arhivskoga gradiva fondova HR-DASK-903 Visoke peći Željezara Sisak i HR-DASK-918 Željezara Sisak, odnosno, HR-DASK-282 Zbirka tiskovina
– Vjesnik Željezare Sisak. U radu se donosi prikaz povijesnog razvoja, opis funkcija, organizacijskog ustroja, te objekata i tehnološkog procesa proizvodnje u Visokim pećima od osnivanja do obustave rada.Blast Furnaces ‒ Sisak Ironworks was one of the oldest and most important drive/OOUR in the sector of social enterprise/SOUR Sisak Ironworks - Sisak. Its main activity was the production of pig iron and by-products, i.e. the production of high-furnace gas, metallurgical lime, limestone, slag-blocks, slag, lead, nut coke and refractory mass within the rounded technological process whose end result was the production of the first seamless pipes in Yugoslavia, the production of welded pipes and other finished products. paper presents the results of the study of historical development, and description of the organizational structure and technological process of Furnaces in the context of the reorganization and management changes at the level of the entire Sisak Ironworks in the period since its establishment in 1946 until the work stoppage in 1993. The operation and development of the Blast Furnaces can be, given the status and legal position within the company Sisak Ironworks, divided into the following periods: from 1946 to 1966, as the period of operation of the drive Furnaces as part of a unified and centralized enterprise Sisak Ironworks; from 1967 until 1972, when the introduction of the self-governing principle conducted the first reorganization of metallurgical combine Sisak Ironworks, and the drive Blast Furnaces gained the status of the unit; from 1973 to 1977, when the second reorganization of Sisak Ironworks was made, forming the basic organizations of associated labor (OOUR). Furnaces first acted independently with legal personality, but since the new reorganization of the Sisak Ironworks as the complex organization of associated labor, from 1978 to 1989 Furnaces acted as part of the Working organization of Metallurgy and rolling mill production Metallurgical Combine SOUR Ironworks Sisak which was concentrated on integral technological process of the production of coke, pig iron and steel, as well as the production and processing of steel pipes. The status of basic organizations of associated labor (OOUR) Furnaces was kept until 1989, when it came to the final reorganization of the Sisak Ironworks, terminating SOUR. Furnaces were restored to the status of the drive within the enterprise Metallurgical and rolling mill production (from 1990 Metaval Ltd.), respectively, a Compound companies (since 1991 holding) Sisak Ironworks. In mid-October 1991 operation of Blast furnaces was completely suspended as a result of a decrease, and then the interruption of steel production in the Siemens-Martin furnaces at Steel plant in the context of the reconstruction of steel production in the company Metaval Ltd., and formally delivered to the commissioning of new electric furnaces, i.e. the new reorganization of Ironworks in late 1995
