Abstract: This invention relates to a wrought aluminum alloy, to its use for making semifinished and finished products and to processes of improving the properties, particularly the strength properties, of semifinished and finished products made of that alloy.A wrought aluminum alloy is proposed which contains 1.15 to 2.0% manganese, more than 1.0 and up to 2.0% silicon, 0.25 to 0.65% magnesium, 0.2 to 1.0% iron, not in excess of 0.3% copper, not in excess of 0.2% zinc, not in excess of 0.1% zirconium, not in excess of 0.1% titanium, balance aluminum and other impurities in a total not in excess of 0.2%.In FIG. 1, the ultimate tensile stresses which can be obtained with three different combinations of cooling rate and subsequent final cold reduction are plotted as a function of the magnesium content, the prior art being represented by magnesium contents of 0.2% and less.

Abstract: This invention relates to a wrought aluminum alloy, to its use for making semifinished and finished products and to processes of improving the properties, particularly the strength properties, of semifinished and finished products made of that alloy.The efforts to improve the properties of aluminum alloys are often successful but restrict the field of application of the material; this is undesirable in view of the need to save raw materials and energy. For this reason a wrought aluminum alloy is desired which has a very wide field of application and which can be made to have properties in a wide range, possibly as a result of a processing under different conditions. The manufacture and recycling of such alloy should not involve special difficulties and the alloy should require only unproblematic alloying elements which are conventionally used with aluminum.

Abstract: This invention relates to a wrought aluminum alloy, to its use for making semifinished and finished products and to processes of improving the properties, particularly the strength properties, of semifinished and finished products made of that alloy.A wrought aluminum alloy is proposed which contains 1.15 to 2.0% manganese, more than 1.0 and up to 2.0% silicon, 0.25 to 0.65% magnesium, 0.2 to 1.0% iron, not in excess of 0.3% copper, not in excess of 0.2% zinc, not in excess of 0.1% zirconium, not in excess of 0.1% titanium, balance aluminum and other impurities in a total not in excess of 0.2%.

Abstract: A malleable or workable nickel composition consists of a melt containing 0.01 to 0.15% by weight oxygen, the balance nickel, which is cast into an ingot and subjected to hotforming to break up the nickel/nickel-oxide eutectic and distribute the nickel oxide in the lattice structure in finely divided form. Preferably the melt contains 0.02 to 0.12% by weight oxygen, the balance nickel.

Abstract: A workable nickel material is made by forming a melt consisting essentially of 0.01 to 0.15% by weight oxygen, elements having an affinity for oxygen defined as the negative numerical value of the enthalpy of formation of the corresponding oxide in Kcal/mole which does not exceed 92 Kcal/mole in an amount homogeneously mixable with nickel, 0 to 0.3% manganese, cerium or rare earth elements in an amount up to that which will combine with up to 20% (e.g. 10 to 20%) by weight of the oxygen, balance nickel, and adjusting the oxygen content to that level. The melt is cast to form an ingot which is worked to destroy the nickel-nickel oxide eutectic structure and to dispense the nickel oxide in the metal. The result is a highly workable nickel material containing a high proportion of nickel oxide.

Abstract: A brass alloy consisting essentially of 57 to 62% by weight copper, 1 to 4% by weight lead and the balance zinc has improved machinability in terms of allowing high coating speeds or affording reduced coating tool wear, especially when the alloy is machined upon an automatic lathe, by the inclusion therein of 0.15 to 0.20% by weight each of tin and magnesium.

Abstract: A covering layer for metallic baths, i.e. baths of molten metal or metal alloys, especially brass or brass-forming compositions consisting of premelted homogeneous finely divided alkali borosilicate glass in a particle size of less than 60 microns and a composition of substantially 10 to 70% by weight B.sub.2 O.sub.3, 5 to 65% by weight SiO.sub.2 and 5 to 40% by weight of one or more of the alkali-metal oxides Na.sub.2 O, K.sub.2 O and Li.sub.2 O.

Abstract: A wire is passed along an axial path through a housing having a frame driven rotatably about the axis of the path. A plurality of angularly equispaced arms mounted on shafts parallel to the axis each carry a respective grinding member having a central bore which is aligned with the axis so that the inner surface of the bore is the active grinding surface effective on the outer surface of the wire. The grinding members are rotated and/or the wire is rotated for grinding action across the displacement direction.