Abstract

A lightweight steel slab including a first panel defining a first plane, a second panel spaced apart from the first panel and defining a second plane, and a truss structure coupled to the first panel and the second panel. The truss structure includes a plurality of struts extending between the first panel and the second panel. At least some of the plurality of struts includes linear elements that are obliquely angled relative to the first plane and the second plane.

IPC Classes  ?

• B32B 3/14 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a face layer formed of separate pieces of material
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
• B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/00 - Ferrous alloys, e.g. steel alloys

Abstract

A method of producing a steel foam component includes providing a mold defining a cavity. The method also includes positioning an insert within the cavity of the mold. The insert can be configured to form a generally uniform pattern of pores within the steel foam component, and in some cases occupies at least 20% of the cavity. The method can further include pouring molten steel into the cavity, cooling the molten steel into the steel foam component, and removing the steel foam component and the insert from the mold. Steel components having internal shapes corresponding to the insert(s) are also provided.

IPC Classes  ?

• B22D 25/00 - Special casting characterised by the nature of the product
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/10 - CoresManufacture or installation of cores
• B22C 9/24 - Moulds for peculiarly-shaped castings for hollow articles
• B22D 29/00 - Removing castings from moulds, not restricted to casting processes covered by a single main groupRemoving coresHandling ingots

Abstract

A method of producing a steel foam component includes providing a mold defining a cavity. The method also includes positioning an insert within the cavity of the mold. The insert can be configured to form a generally uniform pattern of pores within the steel foam component, and in some cases occupies at least 20% of the cavity. The method can further include pouring molten steel into the cavity, cooling the molten steel into the steel foam component, and removing the steel foam component and the insert from the mold. Steel components having internal shapes corresponding to the insert(s) are also provided.

IPC Classes  ?

• B22D 25/00 - Special casting characterised by the nature of the product
• B22D 29/00 - Removing castings from moulds, not restricted to casting processes covered by a single main groupRemoving coresHandling ingots
• B22C 9/10 - CoresManufacture or installation of cores
• B22C 9/22 - Moulds for peculiarly-shaped castings
• B22C 9/02 - Sand moulds or like moulds for shaped castings
• B22C 9/24 - Moulds for peculiarly-shaped castings for hollow articles

Abstract

A method of producing a steel foam component includes providing a mold defining a cavity. The method also includes positioning an insert within the cavity of the mold. The insert can be configured to form a generally uniform pattern of pores within the steel foam component, and in some cases occupies at least 20% of the cavity. The method can further include pouring molten steel into the cavity, cooling the molten steel into the steel foam component, and removing the steel foam component and the insert from the mold. Steel components having internal shapes corresponding to the insert(s) are also provided.

IPC Classes  ?

• B22D 25/00 - Special casting characterised by the nature of the product
• B22D 19/00 - Casting in, on, or around, objects which form part of the product
• B22D 43/00 - Mechanical cleaning, e.g. skimming of molten metals