The present invention relates generally to metal decking 10 including a pair of adjacent metal decking members 12 and 14 located alongside one another. The adjacent metal decking members 12 and 14 are of an identical cross-sectional shape being elongate and of a C-section profile. The C-section metal decking member ...

A portable roll former assembly (9) that can be transported to a building site of a structure (5) under construction and operated at the site to roll form profiled decking sheets and to deliver the sheets onto an elevated section of the structure (7) at or near to the required locations for the sheets in the constru...

A method of forming a coating of an Al- Zn- Si- Mg alloy on a steel strip to form an Al- Zn -Mg- Si coated steel strip is disclosed. The method includes the steps of dipping steel strip into a bath of molten Al- Zn -S-i Mg alloy and forming a coating of the alloy on exposed surfaces of the steel strip and cooling th...

A method of forming a coating of a metal alloy on a steel strip to form a metal alloy coated steel strip is disclosed. The method includes a hot dip coating step of dipping steel strip into a bath of molten metal alloy and forming a metal alloy coating on exposed surfaces of the steel strip. A native oxide layer as ...

A roof or other cladding sheet (3) that is adapted to engage a concealed fixing retaining clip (29) is disclosed. At least one rib (65) or side edge formation (11, 31) of the cladding sheet has a lengthwise extending channel (61) that opens upwardly relative to a base plane of the cladding sheet and is adapted to re...

A mould for casting a component onto a body comprising first and second mould parts arranged to be disposed on respective ones of the opposite sides of the body. At least one of the parts defines at least a portion of a mould cavity that is in communication with the body to allow for casting of the component on to t...

An Al-Zn-Si-Mg alloy coated strip that has Mg2Si particles in the coating microstructure is disclosed. The distribution of Mg2Si particles is such that the surface of the coating has only a small proportion of Mg2Si particles or is at least substantially free of any Mg2Si particles.

A coating of an Al-Zn-Si-Mg alloy on a steel strip that is applied by a hot dip process and is subsequently heat treated to improve the ductility of the coating.

A method of desulfurizing steel including steps of forming a slag over a molten steel drawing a vacuum to less than 5 torr over the slag and molten steel stirring the molten steel and slag and deoxidizing and desulfurizing the molten steel and slag to degas the steel reducing at least sulfur nitrogen oxygen and hydr...

A method of forming an Al Zn Si Mg alloy coating on a steel strip includes dipping steel strip into a bath of molten Al Zn Si Mg 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 ba...

A hot dip method of forming an Al Zn Si Mg alloy coating on a strip is disclosed. The method includes controlling the conditions in the molten bath to minimise the top dross layer in the molten bath. In particular the method includes controlling top dross formation by including Ca and/or Sr in the coating alloy in ...

An Al-Zn-Si-Mg alloy coated strip that has Mg2Si phase particles that are ≤ 2um and have a globular shape. A method of forming an Al-Zn-Si-Mg alloy coated strip comprises (a) heat treating a solidified coating to facilitate globularisation of Mg2Si phase particles in the coating and/or (b) changing the coating bath ...

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 Al Zn Mg Si 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 wei...

A cladding sheet that is adapted to engage one or more than one concealed clip that is connected to an underlying structure is disclosed. The cladding sheet includes at least one lengthwise extending pan (3) and a lengthwise extending rib (5) on each side of the pan. The width of each rib is between 70% and 130% of ...

A composite panel comprising a layer of hardened settable material, at least one element bonded to and/or embedded in the settable material, and one or more connectors fixed to the at least one element, the or each connector comprises a coupling portion that is disposed at a surface of the panel and arranged to form...

A profiled panel (10) is disclosed. The profiled panel (10) is formed from sheet material. The panel (10) has a plurality of fixed longitudinally extending formations (12) that provide one or more base characteristics of the panel (10), and at least one variable longitudinal formation (22). The variable longitudinal...

A clip for fixing a cladding sheet to an underlying support structure includes a base (5), a pair of side walls(7) extending from the base and converging towards each other, and a pair of flanges (9) extending outwardly and downwardly from the side walls. The flanges define retaining members for engaging re-entrant ...

Module (10) for a platform comprises a body (12) having at least one side (14A) for adjoining a side of another module. At least two spaced dovetailed shaped lugs (16A, 16B, 16C) are located at the side (14A) to define a shaped region (18) so that a corresponding lug on another module can be positioned in the region...

A roofing system for a building is disclosed. The roofing system includes a plurality of roof cladding sheets (7) in overlapping relationship and a plurality of concealed clip assemblies that retain the cladding sheets to an underlying roof support structure (5). Each cladding sheet has at least one rib (11) separ...

A method of curing a water-borne paint that has been applied as a liquid onto a substrate and forms a paint coating on the substrate is disclosed. The method includes heating the coated substrate to and holding it at a temperature that is below (but preferably no more than 5-10° below) the boiling point of water in ...

A method of controlling surface defects of the type described in the specification on a steel strip coated with a aluminium-zinc-silicon alloy is disclosed. The method includes heat treating the steel strip in a heat treatment furnace (5) and thereafter hot-dip coating the strip in a molten bath (6) and thereby for...

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.

A method of producing a metal-coated, recovery annealed, and thereby high tensile strenght, steel strip is disclosed. The includes the steps of heat treating the steel strip in a heat treatment fumance (5), thereafter hot-dip metal coating the strip in a bath (6) of molten coating metal and thereby forming a metal c...

A decking member 10 has opposite longitudinal edges 11, 12 which are shaped to form respective overlap and underlap portions. The edges are arranged to form a lap connection 24 when interconnecting the overlap portion 25 of one member 101 with the underlap portion 26 of another member 10. In forming the lap connec...

A method of forming a polymeric component 41, 50, 51, 5 5 on a body 100, 200, 400 provides an open mould 501, 502 having an inner surface 503, 504. The mould is placed onto a surface 401 of the body 400 so that a closed cavity 505 is formed by the inner mould surface and the body surface. A fluid polymeric materia...

A composite product 1, 2, 3, 4, 300 comprises a body 10 0, 200, 301 and a polymeric component 41, 50, 51, 55 cast onto a surface of the body. In one form, the product is for water infrastructure and the body is in the form of a hollow section and a water impermeable interface is formed between the body surface and t...

A steel strip having a metal coating on one surface of the strip is disclosed. The strip is characterised in that the coating includes aluminium-zinc-silicon alloy that contains magnesium and the coating has small size spangles.

O 8 A article 10 formed at least partially from at least one metal sheet incorporates at least one lockseam 20 that interconnects adjacent edge margins 18 and 19 of the sheet 17. The lockseam 20 includes a region where the edges overlap and wherein at least one of the edge margins has a coating 23 applied to ...

Fittings for a water storage tank are disclosed. The fittings comprise an inlet sub-system (3) for allowing the passage of water into the tank, an outlet sub-system (47) for allowing the passage of water from the tank; and an overflow outlet sub-system (77) for allowing the passage of water from the tank. ...

A steel strip having a coating of a metal alloy on at least one surface of the strip is disclosed. The metal alloy contains aluminium, zinc, silicon, and magnesium as the major elements. The metal alloy also contains strontium and/or calcium and unavoidable impurities and optionally other elements that are present a...

A system 100 for making component parts of a structure is disclosed. The system comprises an electronic data receiver 104 for receiving electronic data specifying the structure. The system also has a numerical control data generator 108 for generating numerical control data from the electronic data for instructing...

A clip for fixing a cladding sheet to an underlying support structure includes a base (5), a pair of side walls (7) extending from the base and converging towards each other, and a pair of flanges (9) extending outwardly and downwardly from the side walls. The flanges define retaining members for engaging re-entrant...

A method of forming a polymeric component on a body is disclosed which includes the steps of casting a fluid polymeric material onto the body whilst providing support for the body. The method has particular application to casting components on metal pipes and the like.

A water storage tank is disclosed. The tank comprises an outer shell (2) that defines an interior of the tank, at least one water catchment bag (48) located in the tank interior, at least one inlet (19) in the outer shell for passage of water into the bag (s), and at least one outlet (21) in the outer shell for pass...

An apparatus and method for block feeding a solid body of paint composition in a melt deposition painting station including an endless belt conveyor (9) a belt turn round mean (13,14) and a drive means. The endless belt conveyor includes an endless belt (10) having a substantially planar flight (11) to convey one or...

An apparatus for continuous hot-dip coating of metal strip is disclosed. The apparatus includes a first coating pot to hold a molten bath of a first coating metal and a first metal heating means to heat the bath of molten metal in the first pot. The apparatus also includes a second coating pot to hold a molten bath ...

A metal roof truss comprising: a lower chord member at opposing ends being connected to respective of a pair of upper chord members; and a plurality of elongate compression webs at opposing ends being connected to the lower chord member and one of the upper chord members, respectively, the compression webs and said...

A method of treating an Al/Zn-based alloy coated product that includes an Al/ZN-based alloy coating on a substrate is disclosed. The method includes the steps of rapid intense heating of the alloy coating for a very short duration, and rapid cooling of the alloy coating, and forming a modified crystalline microstruc...

A method of fixing overlaying components together, comprising the step of piercing nails having a profiled shank through the components to fix those components together. Structures including metal sheet are also disclosed which utilize this fixing technique. The structures include composite wall panels used in tilt ...

A twin roll caster includes a pair of casting rolls arranged parallel to one another with a gap between the casting rolls and side dams parallel to one another forming a pool between the casting rolls and the side dams. A side dam support is provided that applies a compression force on at least one of the side darns...

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)...

A steel pallet system for carrying metal coils weighing around 5.5 tons fabricated using a grillage of Square Hollow Section (SHS) beams. The Primary beams are made up of two SMS lubes, which support the four numbers of secondary beams. A finite element model prepared in a finite element software ABAQUS, to carry ou...

A panel comprising one or more decking members is arranged such that a settable material can be supported thereon to form a composite panel. The panel further comprises one or more elongate strengthening elements, each element being arranged to connect to the one or more decking members in a manner such that the one...

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.

ABSTRACT “CORROSION PROTECTION WITH AL/ZN-BASED COATINGS” Red rust staining of Al / Zn coated steel strip in "acid rain" or "polluted" environments can be minimised by forming the coating as an Al-Zn-Si-Mg alloy coating with an OT : SDAS ratio greater than a value of 0.5:1, where OT is the overlay thickness on...

A process for coating a product by ion exchange including : a) providing a product that contains a surface segregating species (SSS) having a low surface energy component and an ionic component wherein the SSS has segregated to an outer surface of the product to form an activated surface; and b) treating the activat...

A concealed fixing retaining clip for fixing a roof or other cladding sheet to an underlying support structure is disclosed. The clip comprises a base a pair of side walls that extend from the base and a pair of flanges that define retaining members for engaging re entrant portions in the sides of ribs of cladding s...

A method of forming a plurality of elongate trusscomponents for a metal roof truss, the truss componentsbeing stiffening webs and/or chord members of the truss andsaid method comprising the steps of:forming one or more pairs of opposing notches inelongate strip metal; andr...

Red rust staining of Al / Zn coated steel strip in "acid rain" or "polluted" environments can be minimised by forming the coating as an Al-Zn-Si-Mg alloy coating with an OT : SDAS ratio greater than a value of 0.5:1, where OT is the overlay thickness on a surface of the strip and SDAS is the measure of the secondary...

A steel strip that has a coating of an Al Zn Si alloy that contains 0.3 10 wt.% Mg and 0.005 0.2 wt.% V.

A method of forming a coating of an Al-Zn-Si-Mg alloy on a steel strip to form an Al-Zn-Mg-Si coated steel strip is disclosed. The method includes the steps of dipping steel strip into a bath of molten Al-Zn-Si-Mg alloy and forming a coating of the alloy on exposed surfaces of the steel strip and cooling the coa...

A process for coating a product by ion exchange including : a) providing a product that contains a surface segregating species (SSS) having a low surface energy component and an ionic component wherein the SSS has segregated to an outer surface of the product to form an activated surface; and b) treating the activ...

A channel inductor of a channel induction furnace is disclosed. The channel inductor comprises a channel liner that defines a channel for a molten metal to flow through the channel inductor. The channel liner comprises an inlet and an outlet for the molten metal and a flange for mounting the channel liner to a ...

The present invention relates generally to a constructional panel in the form of ametal roof panel (10) being elongate and having four longitudinally and equallyspaced apart rib formations (12, 14, 16, 18). Adjacent pairs of the longitudinal ribformations such as (12) and (14) are interconn...

ABSTRACT “METAL-COATED STEEL STRIP” A method of forming an Al-Zn-Si-Mg alloy coating on a steel strip includes dipping steel strip into a bath of molten Al-Zn-Si-Mg alloy and forming a coating of the alloy on exposed surfaces of the steel strip. The method also includes controlling conditions in the molten coa...

ABSTRACT “COATING PROCESS” A process for coating a product by ion exchange including : a) providing a product that contains a surface segregating species (SSS) having a low surface energy component and an ionic component wherein the SSS has segregated to an outer surface of the product to form an activated sur...

A method of forming a coating of a metal alloy on a steel strip to form a metal alloy coated steel strip is disclosed. The method includes a hot dip coating step of dipping steel strip into a bath of molten metal alloy and forming a metal alloy coating on exposed surfaces of the steel strip. A native oxide layer a...

ABSTRACT 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 Al-Zn-Mg-Si overlay alloy layer and an intermediate alloy layer between the steel strip and the overlay alloy layer. The intermediate alloy layer has a compo...

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. ...