Abstract: The invention relates to a process of producing a non-ferrous metallic tube, in which process comprises a casting stage, in which a cast tube having an outer diameter of 20-70 mm, preferably 35-55 mm and a wall thickness of 1.0-4.0 mm, preferably 2.0-3.0 mm, is casted from melt by continuous upward vertical casting process, and the casting stage is followed by at least two drawing stages. In the drawing stages drawing direction of the cast tube in at least two each other following drawing stages is opposite to each other.
Type:
Grant
Filed:
March 12, 2021
Date of Patent:
October 15, 2024
Assignee:
Upcast Oy
Inventors:
Juho Kalliokoski, Hanna-Leena Suviniemi-Mäkitalo, Jukka Lähteenmäki
Abstract: The invention relates to a continuous casting nozzle assembly (10) for casting, in particular for upward vertical casting, of a metallic, in particular a non-ferrous, pipe, which is suitable for uninterrupted casting, which nozzle assembly comprises a nozzle (11), a mandrel (12) and a cooler (15). Surface roughness of at least part, in particular of the dwindling area (Z), of inner surface of the nozzle (11) of the nozzle assembly (10) is 1-8.0 Ra, advantageously 3-5 Ra.
Type:
Grant
Filed:
October 18, 2013
Date of Patent:
March 6, 2018
Assignee:
Upcast Oy
Inventors:
Markku Koivisto, Esko Furuholm, Juha Jaakola, Jukka Lähteenmäki, Pertti Pihlajamäki, Tuomas Rajaviita, Ismo Rossi
Abstract: The invention relates to a continuous casting nozzle assembly (10) for casting, in particular for upward vertical casting, of a metallic, in particular a non-ferrous, pipe, which is suitable for uninterrupted casting, which nozzle assembly comprises a nozzle (11), a mandrel (12) and a cooler (15). Surface roughness of at least part, in particular of the dwindling area (Z), of inner surface of the nozzle (11) of the nozzle assembly (10) is 1-8.0 Ra, advantageously 3-5 Ra.
Type:
Application
Filed:
October 18, 2013
Publication date:
August 18, 2016
Applicant:
Upcast Oy
Inventors:
Markku Koivisto, Esko Furuholm, Juha Jaakola, Jukka Lähteenmäki, Pertti Pihlajamäki, Tuomas Rajaviita, Ismo Rossi