Norsk Hydro ASA is a Norwegian aluminium and renewable energy company, headquartered in Oslo. Hydro is one of the largest aluminium companies worldwide. It has operations in some 50 countries around the world and is active on all continents. The Norwegian state holds a 34.3 percent ownership interest in the company, which employs approximately 12,500 people. Svein Richard Brandtzæg has been the CEO since 2009.The company had a significant presence in the oil and gas industry until October 2007, when these operations were merged with rival Statoil to form StatoilHydro . Wikipedia.
Norsk Hydro | Date: 2017-02-15
Method for the manufacturing of products with anodized high gloss surfaces from extruded profiles of Ai-Mg-Si or AS-Mg-Si-Cu, where the alloys initially are cast to extrusion billet(s), containing in wt.% Si: 0,25-1,00 Mg: 0,25-1,00 Fe: 0,00-0,15 Cu: 0,00-0,30 Mn: 0,00 -- 0,20 Cr: 0,00-0,10 Zr: 0,00 -0,10 Sc: 0.00 -0,10 Zn: 0,00-0,10 Ti: 0,00-0,05., and Including incidental impurities and balance A.L a) where the billet is homogenised at a holding temperature between 480C and 620C and soaked at this temperature for 0-12 hours, where after the billet is subjected to cooling from the homogenisation temperature at. a rate of 150C/h or faster, b) the billet is preheated to a temperature between 400 and 540C and extruded preferably to a solid shape profile and cooled rapidly down to room temperature, c) optionally artificially ageing the profile, d) deforming the profile more than 10% by a cold roiling operation, whereafter e) the profile is flash annealed with a heating time of maximum two minutes to a temperature of between 450 ~ 530 C for not more than 5 minutes and subsequently quenched, and f) optionally the profile after flash annealing is further subjected to a cold deforming operation to remove residua! stresses from cooling and adjusting dimensional tolerances, and g) the profile is finally aged.
Norsk Hydro | Date: 2017-07-26
Means and a method for feeding doses of fluidisable materials, comprising a supply of material (1, 2, 2) and a discharging air slide (3) with at least one fluidisable element (5) in its bottom, where said element, when activated, being able to transport material towards one outlet (8) for controlled dosage. Upstream the discharging air slide (3) there is arranged a substantially vertical distance tube (4, 4) that connects the supply of material (1, 2, 2) with the discharging air slide (3). The distance tube has a height to diameter ratio that will ensure a constant hydrostatic pressure towards the discharging air slide (3) at different filling levels.
Agency: European Commission | Branch: H2020 | Program: CSA | Phase: SPIRE-04-2014 | Award Amount: 514.80K | Year: 2015
Sustainability assessment methods are needed to support sustainable technology development and to evaluate the impacts of existing solutions, products and technologies. While there are aspects and indicators that are common to all process industries, sector specific tools are required to address the sector specific features in a fair and transparent way. At the moment, several tools, assessment methods and indicators exist, but they differ in their goal and scope and are intended for different kind of use within companies, by consumers or by authorities to support policy planning and evaluation. Additionally, different tools are focused for different levels of assessment: product, company, industry or society. Thus the problem is not so much the existence of proper tools but rather the lack of understanding and knowledge on how they should be applied and in which context. Furthermore, suitable tools for analysing resource and energy efficiency within the process industries and across the different sectors should be recognized. The aim of the SAMT project is to review and make recommendations about the most potential sustainability assessment methods for evaluating energy and resource efficiency in the process industry. The analysis will focus on the applicability of different methods in industrial settings, the ability of the methods to support decision-making towards sustainable solutions and the suitability of the tools for cross-sectoral analysis. SAMT will evaluate tools that cover either environmental, economic and social aspects, or a combination of these, and apply principles of life cycle thinking. The project will consider demands and make recommendations related to sectorial and cross-sectorial assessment in a wide spectrum of process industries: cement, metal, oil, water, waste and chemical industry. To maximize the impact of the project the work will be supported by active dissemination activities including an implementation strategy as an outcome.
Ntnu Technology Transfer As and Norsk Hydro | Date: 2013-11-25
The present invention relates to a method and equipment for recovering heat from exhaust gas removed from an industrial process, such as an electrolysis process for the production of aluminium. Heat is recovered by means of an extraction/suction system, where the exhaust gas contains dust and/or particles. The heat is recovered as the exhaust gas being brought into contact with heat-recovery elements. Flow conditions and the design of the heat recovery elements are such that the deposits of the dust and/or particles on the surfaces stated are kept at a stable, limited level. In preferred embodiments, the heat-recovery elements have a circular or an extended, elliptical cross-section and may be equipped with fins or ribs.
Norsk Hydro | Date: 2012-09-06
Pre-flux coating for the manufacturing of components by brazing, in particular manufacturing of heat exchangers of aluminium components including one or more fluxes and filler material. The coating is composed of one ore more fluxes in the form of potassium aluminum fluoride K1-3AIF4.6, potassium trifluoro zincate, KZnF3, lithium aluminum fluoride Li3AIF6, filler material in the form of metallic Si particles, AlSi particles and/or potassium fluoro silicate K2S1F6, and additive in the form of alumminium oxide and/or other suitable oxide or material forming a post braze ceramic layer, and further including solvent and binder containing at least 10% by weight of a synthetic resin which is based, as its main constituent, on methacrylate homopolymer or methacrylate copolymer.
Norsk Hydro | Date: 2013-06-01
A method for optimisation of product properties and production costs of industrial processes where a product is manufactured in several operations, Including the following steps:establishing process chain models (1m) for each process (1n), altogether (mn) models for the calculation of product properties and product production costs, defining model inputs and outputs related to each of the (mn) models for physical, chemical or biological parameters and costs of the product,defining limitations or minimum requirements related to each of the (mn) models of product properties or process capacity or ability,providing an optimizing tool linked to the input and output steps and model limitations performing iterations and flow of data between said steps to optimize the product based on customer requirements.
Norsk Hydro | Date: 2012-10-08
Method for manufacturing tube fm heat exchangers, (TFP), by brazing metal components of mainly aluminium or aluminium alloys including the following steps:making the components of the TFP heat exchanger including the tubes (2) and plate fins (6) with collars (7),providing a pre-braze coating with filler material on the tubes (2), or providing a (welded) clad tube (2) with a flux coating,assembling the components including attaching the fins (6) to the tubes (2),heating the assembled components forming the brazed connection between the tubes (2) and fins (6).
Norsk Hydro | Date: 2015-03-24
Method for the manufacturing of products with anodized high gloss surfaces from extruded profiles of AlMgSi or AS-MgSiCu, where the alloys initially are cast to extrusion billets), containing in wt. % Si: 0.25-1.00 Mg. 0.25-1.00 Fe: 0.00-0.15 Cu: 0.00-0.30 Mn: 0.00-0.20 Cr: 0.00-0.10 Zr: 0.00-0.10 Se: 0.00 -0.10 Zn: 0.00-0.10 Ti: 0.00-0.05., and including incidental impurities and balance A.L a) where the billet is homogenised at a holding temperature between 480 C. and 620 C. and soaked at this temperature for 0-12 hours, where after the billet is subjected to cooling from the homogenisation temperature at a rate of 150 C./h or faster, b) the billet is preheated to a temperature between 400 and 540 C. and extruded preferably to a solid shape profile and cooled rapidly down to room temperature, c) optionally artificially ageing the profile, d) deforming the profile more than 10% by a cold roiling operation, whereafter e) the profile is flash annealed with a healing time of maximum two minutes to a temperature of between 450-530 C. for not more than 5 minutes and subsequently quenched, and f) optionally the profile after flash annealing is further subjected to a cold deforming operation to remove residual stresses from cooling and adjusting dimensional tolerances, and g) the profile is finally aged.
Norsk Hydro | Date: 2013-04-25
Extrudeable AlMgSi aluminium alloy with improved strength, corrosion resistance, crush properties and temperature stability, in particular useful in or close to the front part of vehicles. The composition of the alloy is defined within the following coordinate points of an MgSi diagram: a1-a2-a3-a4, where in wt % a1=0.60 Mg, 0.65Si, a2=0.90Mg, 1.0Si, a3=1.05Mg, 0.75Si and a4=0.70Mg, 0.50Si and where the alloy has a non-recrystallised grain structure in the extruded profile containing in addition the following alloy components in wt %: Fe up to 0.30 Cu 0.1-0.4 Mn 0.4-1.0 Cr up to 0.25 Zr up to 0.25 and Ti 0.005-0.15 incidental impurities up to 0.1 each and including Zn up to 0.5 with balance Al.
Norsk Hydro | Date: 2014-08-28
Method for the manufacturing of an AlMgSi(Cu) extrusion alloy, the alloy initially being cast to extrusion billet(s), containing in wt. %