A castable refractory material for use in the manufacture of refractory products including fused silica, ceramic fibre, microsilica and a bonding material comprising colloidal silica.

A castable, moldable, or extrudable structure using a metallic base metal or base metal alloy. One or more insoluble additives are added to the metallic base metal or base metal alloy so that the grain boundaries of the castable, moldable, or extrudable structure includes a composition and morphology to achieve a specific galvanic corrosion rates partially or throughout the structure or along the grain boundaries of the structure. The insoluble additives can be used to enhance the mechanical properties of the structure, such as ductility and/or tensile strength. The insoluble particles generally have a submicron particle size. The final structure can be enhanced by heat treatment, as well as deformation processing such as extrusion, forging, or rolling, to further improve the strength of the final structure as compared to the non-enhanced structure.

An aluminum alloy casting free from crack-causing needle-shaped crystallized substances, and an apparatus and a method for producing a slide member excellent in mechanical properties such as abrasion resistance are provided. A melt of an iron-containing aluminum alloy poured into a vessel in the completely liquid state is vibrated by a vibrating needle of a vibration applying unit, and then a core is inserted into the melt to cool the melt, whereby the aluminum alloy casting is produced as a sleeve of a slide member. The vibrating step is carried out at a frequency of 20 to 1000 Hz, and is continued until just before the melt is cooled to the solid-liquid coexisting temperature region.

A plant and a process are disclosed for producing components made of an aluminum alloy for vehicles and white goods, through the steps of: providing thixotropic billets made of an aluminum alloy; sizing the billets depending on a ratio between weight and size of the component to be produced, thereby obtaining crop ends of material; heating the crop ends in a range of temperatures during which both a solid phase and a liquid phase coexist with a prevalence in the solid phase (more than 50%) in heating means (5); loading, through loading means (9), the crop ends in an injecting vessel made of non-magnetic steel for further workings; removing, through scalping devices, an external part of the crop ends that has become cooled when passing from the heating means (5) to the loading means (9); firstly injecting the crop ends through a press; secondly injecting the crop ends through the press in 18 milliseconds by using a closed-loop control system and increasing the injection unit power with respect to a closing unit of the press; thirdly injecting the crop ends by coining the finished part in order to remove all porosities; extracting the molding through extracting means (13); depositing the molding onto a conveyor belt (15); and controlling a quality of the obtained molding, the molding being then sent to downstream mechanical workings and/or an heat treatment.

A molten metal processing device including a molten metal containment structure for reception and transport of molten metal along a longitudinal length thereof. The device further includes a cooling unit for the containment structure including a cooling channel for passage of a liquid medium therein, and an ultrasonic probe disposed in relation to the cooling channel such that ultrasonic waves are coupled through the liquid medium in the cooling channel and through the molten metal containment structure into the molten metal.

An aluminum alloy for high pressure die casting of ultra-large vehicle body structures. The aluminum alloy includes about 4.00 to about 12.00 weight percent silicon (Si); about 0.20 weight percent maximum (Max) copper (Cu); about 0.40 weight percent Max magnesium (Mg); about 0.20 to about 0.60 weight percent iron (Fe); about 1.00 weight percent Max manganese (Mn); about 0.50 weight percent Max zinc (Zn); about 0.02 weight percent Max strontium (Sr); about 0.50 weight percent Max cerium (Ce); about 0.01 weight Max percent boron (B); and a remaining weight percent aluminum (Al). The aluminum alloy provides an as-cast yield strength of greater than 130 Megapascals (MPa), ultimate tensile strength of greater than 260 MPa, and elongation of greater than 6% without the need for heat treatment.

A method of manufacturing a vehicle chassis part capable of increasing bonding strength between a cast material and an extruded material forming the chassis part is proposed. The method includes: forming a pattern portion for bonding to a cast material on an outer surface of an extruded material; inserting and fixing the extruded material into which the pattern portion is formed, in a mold for molding the cast material; and injecting molten metal for molding the cast material into the mold to form the cast material. A portion of the cast material overlaps the pattern portion of the extruded material to be formed integrally therewith.

An aluminium based alloy consisting essentially of (wt %): silicon: 4.0 to 8.5% magnesium: 0.07 to 0.3% titanium: 0.06 to 0.2% manganese: <0.05% iron: <0.15% chromium: <0.01% nickel: <0.01% copper: 2.5 to 4% zinc: 0 to 0.5% strontium: >0.001 to 0.03% beryllium: less than 0.0005% tin: less than 0.01% other elements (each): less than 0.05% each other elements total: less than 0.15% in total, and a balance of aluminium and other unavoidable impurities.

An aluminum alloy including additions of scandium, zirconium, erbium and, optionally, silicon.

An aluminum alloy including additions of scandium, zirconium, erbium and, optionally, silicon.