Bluescope Steel Ltd.

Port Kembla, Australia

Bluescope Steel Ltd.

Port Kembla, Australia

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Patent
Bluescope Steel Ltd. | Date: 2016-12-02

A tilt-up wall panel for use in the construction of a building is disclosed. The panel includes a composite slab that includes (a) a profiled decking sheet and (b) concrete cast on the profiled decking sheet.


Patent
Bluescope Steel Ltd. | Date: 2013-10-17

A method of forming a coating of an AlZnSiMg alloy on a steel strip to form an AlZnMgSi coated steel strip is disclosed. The method includes the steps of dipping steel strip into a bath of molten AlZnSiMg alloy and forming a coating of the alloy on exposed surfaces of the steel strip and cooling the coated strip with cooling water. The cooling step includes controlling the pH of cooling water to be in a range of p H 5-9. Particular embodiments focus on AlZnSiMg alloys that contain the following elements in % by weight: Zn: 30 to 60, Si: 0.3 to 3, Mg: 0.3 to 10, and Balance Al and unavoidable impurities.


Patent
Bluescope Steel Ltd. | Date: 2014-03-06

A channel inductor of a channel induction furnace, the channel inductor comprising (a) a channel liner and (b) a back-up liner that supports the channel liner such that the integrity of the channel liner is not compromised during heat-up, dry-out, or operation of the channel induction furnace.


Patent
Bluescope Steel Ltd. | Date: 2013-02-28

A coated substrate including: a substrate including a treated layer, a photocatalytic layer, and a protective layer between the photocatalytic layer and the treated layer, the protective layer comprising colloidal particles dispersed in a matrix, the colloidal particles including first and second types of particles that differ in their respective particle size distributions and which together provide a physical barrier by virtue of the first, smaller particles at least partially filling interstices between the second, larger particles and thereby impede photocatalyst derived degradation of the treated layer, the first type of colloid particles comprising hydrolysed silica based material such as reactive silica condensate particles or polyhedral oligomeric silsesquioxanes, or mixtures thereof, the protective layer having an effect of less than 20 delta E units on the colour and gloss of the substrate.


Patent
Bluescope Steel Ltd. | Date: 2013-10-17

A method of forming a coating of an AlZnSiMg alloy on a steel strip to form an AlZnMgSi coated steel strip is disclosed. The method includes the steps of dipping steel strip into a bath of molten AlZnSiMg alloy and forming a coating of the alloy on exposed surfaces of the steel strip and cooling the coated strip with cooling water. The cooling step includes controlling the pH of cooling water to be in a range of pH 5-9. Particular embodiments focus on AlZnSiMg alloys that contain the following elements in % by weight: Zn: 2 to 19, Si: 0.01 to 2, Mg: 1 to 10, and Balance Al and unavoidable impurities.


Patent
Bluescope Steel Ltd. and Nippon Steel & Sumitomo Metal Corporation | Date: 2014-03-06

A method of forming an AlZnSiMg alloy coating on a steel strip includes dipping steel strip into a bath of molten AlZnSiMg alloy and forming a coating of the alloy on exposed surfaces of the steel strip. The method also includes controlling conditions in the molten coating bath and downstream of the coating bath so that there is a uniform Al/Zn ratio across the surface of the coating formed on the steel strip. An AlZnMgSi coated steel strip includes a uniform Al/Zn ratio on the surface or the outermost 1-2 m of the AlZnSiMg alloy coating.


Patent
Bluescope Steel Ltd. | Date: 2013-11-15

A clip (61) for holding together an upper roof cladding sheet (29a) and a lower roof cladding sheet (29b) in an end to end, i.e. end lap, relationship on a roof. The clip is formed to fit over and lock onto a rib (31) of the lower cladding sheet and to retain the upper sheet on the clip. An elongate weather strip (57) is formed from a compressible material and includes a pan section (81) that can fill a gap between overlapping pans of the cladding sheets. The pan section includes an upper surface having a series of troughs (87) and ridges (89) along the length of the pan section that has the result of providing the pan section with a variable height along the length of the pan section. The ridges of the pan section compress when the upper roof cladding sheet is positioned on and engaged with the lower cladding sheet in an overlapping relationship with the pan section filling the gap between the cladding sheets.


Patent
Bluescope Steel Ltd. | Date: 2013-02-28

A coated substrate including a substrate including a treated layer, a photocatalytic layer, and a protective layer for impeding photocatalyst derived degradation of the treated layer, the protective layer being provided between the photocatalytic layer and the treated layer, the protective layer comprising colloidal particles distributed in a matrix comprised at least partly of an organosilicon phase which is oxidisable by the reactive oxygen species to form a non-volatile inorganic phase, wherein the organosilicon phase includes a surfactant incorporating an organosilicon component.


Patent
Bluescope Steel Ltd. | Date: 2014-04-18

A method of forming an AlZnSiMg alloy coating on a strip that includes dipping strip into a bath of molten AlZnSiMg alloy and forming a coating of the alloy on the strip, with the AlZnSiMg alloy containing in % by weight: Al: 2 to 19%, Si: 0.1 to 2%, Mg: 1 to 10%, and Zn: 80 to 97%, and with the bath having a molten metal layer and a top dross layer on the metal layer, and the method including providing Ca in the composition of the bath to minimise the top dross layer in the molten bath.


Patent
Bluescope Steel Ltd. | Date: 2013-07-31

A metallic coated steel strip includes a steel strip and a metallic coating on at least one side of the strip. The metallic coating includes an AlZnMgSi overlay alloy layer and an intermediate alloy layer between the steel strip and the overlay alloy layer. The intermediate alloy layer has a composition of, by weight, 4.0-12.0% Zn, 6.0-17.0% Si, 20.0-40.0% Fe, 0.02-0.50% Mg, and balance Al and unavoidable impurities.

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