Abstract: A process for producing electromagnetic silicon steel having a cube-on-edge orientation. The process includes the steps of: preparing a melt of silicon steel containing from 0.02 to 0.06% carbon, from 0.015 to 0.15% manganese, from 0.0006 to 0.0080% boron, up to 0.0045% nitrogen, from 0.005 to 0.019% sulfur, no more than 0.0065% phosphorus and from 2.5 to 4.0% silicon; casting the steel; hot rolling the steel; welding the steel to another steel member of like chemistry; cold rolling the steel to a thickness no greater than 0.020 inch; decarburizing the steel; applying a refractory oxide coating to the steel; and final texture annealing the steel.

Abstract: Individual charges of silicon steel are passed through a tunnel type furnace provided with charge and discharge vestibules. The annealing takes place in a hydrogen atmosphere and the vestibules are purged with nitrogen and then with hydrogen. The hydrogen used for purging is taken from the hydrogen in the annealing atmosphere and additional new hydrogen is added to the annealing atmosphere at the same time to maintain the pressure constant.

Abstract: A phosphorus-iron powder is disclosed for use in the pressing and sintering of soft magnetic parts. This powder comprises a substantially phosphorous free iron powder blended with a sufficient quantity of ferrophosphorus powder having an average particle size of at least 10 micron and a phosphorus content of from 18 to 30%, to arrive at a phosphorus content for the mixture in a range of from about 0.40 to 1.25%. By pressing the blended mixture to a green density of at least 6.0 grams per cubic centimeter, and sintering the pressed mixture in a nonoxidizing atmosphere at a temperature of at least 1900.degree.F., the part linear shrinkage during sintering is less than 2%.

Abstract: A draw or ironing die assembly includes a housing having a minimum modulus of elasticity of 50,000,000 p.s.i. and an axial hole therethrough. A die wear ring of greater elastic modulus and greater hardness is shrunk fit into the axial hole. Tungsten carbide is a suitable material for each part.

Abstract: A method for electroplating a selective area of a part is disclosed comprising the steps of rotating a disc having an absorbent upper surface, maintaining electrolytic solution on the absorbent upper surface of the disc. While such disc is charged anodically and the part is charged cathodically, the part is passed across a chord of the circle within which the disc rotates with the selective area of the part in contact with the electrolytic solution on the rotating disc.

Abstract: The susceptibility of a material to heating by exposure to microwave energy which material has slight or no such susceptibility is improved by mixing it in granular form with a microave reactive agent also in granular form which is capable of substantially responding to microwave energy. An article made from this mixture can be directly heated with microwave energy.

Abstract: A method is provided for treating the weld area of a welded ferritic stainless steel article to increase the resistance to intergranular corrosion. This method comprises the step of grinding the torch side surface of the welded article at a substantially uniform depth along the length of the weld after the material has solidified in the weld area, with the cross sectional dimension of the grind extending beyond the weld-base metal interface on both sides of the weld area. In accordance with this method, the depth of grind is uniformly controlled within the range of from at least 0.0005 inch as measured at the weld-base metal interface to less than 10% of the unground article thickness.

Abstract: An improved process for dispersing alumina trihydrate in a polyester resin is disclosed wherein the improvement comprises lowering the viscosity of the polyester-trihydrate dispersion by dehydrating the alumina trihydrate to a reduction in the initial loss on ignition in a range of from 0.2 to 5.0 percent prior to adding the trihydrate to the polyester resin.

Abstract: An improved method of producing carbon monoxide in a plasma arc reactor is disclosed, wherein carbon dioxide is delivered to an arc to form a plasma into which solid carbon is delivered. The products are quenched and filtered to yield carbon monoxide. High yields of carbon monoxide of high purity and high efficiencies of electrical-to-chemical conversion thus may be achieved.

Abstract: An improved process for dispersing inorganic fillers, such as alumina trihydrate, in a polyester resin is disclosed wherein the improvement comprises significantly lowering the viscosity of the polyester-filler dispersion by coating the filler with 0.05 to 1.0 percent, based on the weight of the filler, of a polar phosphate ester surfactant containing acid groups and polar ether groups, prior to adding the filler to the polyester resin.

Abstract: A wire-feeding mechanism comprises a rotatably mounted pulley formed on its edge with a continuous circumferential groove and plural rollers arranged to hold an endless flexible belt against a segment of the edge of the pulley. The belt thus is adapted to hold the wire in the groove as one roller is driven.

Abstract: Magnetic particles and compacts formed therefrom for use as magnetic cores formed of a blend of iron particles and particles of sendust, with the particles containing a coating of an electrical insulator thereon. The particles are compacted and annealed in the practice of this invention to form magnetic cores.

Abstract: Gases are removed from particles, such as ferrochrome, by providing a container having an open top and a vertical wall having closely spaced opening therein so constructed that the particles will not plug or pass therethrough. Preferably a central vertical tubular member is provided in the container with similar holes. The particles are placed in the container between its wall and the vertical member and heated in a furnace to a temperature at which the gases will evolve. The gases may be removed by having the furnace under vacuum or by the atmosphere in the furnace.

Abstract: Individual charges of silicon steel are passed through a tunnel type furnace provided with charge and discharge vestibules. The annealing takes place in a hydrogen atmosphere and the vestibules are purged with nitrogen and then with hydrogen. The hydrogen used for purging is taken from the hydrogen in the annealing atmosphere and additional new hydrogen is added to the annealing atmosphere at the same time to maintain the pressure constant.

Abstract: Coils of strip to be annealed are placed in a furnace with their eye vertical and are heated to the annealing temperature by heating elements on the furnace above and below the level of the coils. An improved convector coil support includes a single metal plate having a central opening and grooves in one side extending from the central opening to the outer periphery when used to support a bottom coil and two such plates fastened together with their grooves facing each other when the convector is used to support a coil on top of a coil.

Abstract: A copper-nickel alloy is remelted to form high quality ingots or slabs which are capable of undergoing hot-working in the "as cast" form by electroslag remelting the alloy under a flux composition prepared by fusing a mixture consisting essentially of from about 35% to about 75% barium fluoride and from about 25% to about 65% calcium fluoride, by weight.

Abstract: A manganese-copper-nickel alloy is remelted to form high quality ingots or slabs which are capable of undergoing hot-working in the "as cast" form by electroslag remelting the alloy under a flux composition prepared by fusing a mixture consisting essentially of from about 50% to about 85% barium fluoride and from about 15% to about 50% calcium fluoride, by weight.

Abstract: An improved process for dispersing alumina trihydrate in a polyester resin is disclosed wherein the improvement comprises reducing the times required to accomplish the gelling and curing of a polyester resin by blending two to ten percent activated alumina, based on the total weight of alumina, with the alumina trihydrate.

Abstract: A method is provided for substantially completely removing volatilizable and combustible impurities from the surface of metallic scrap comprising the steps of continuously depositing surface contaminated scrap onto the surface of a stream of molten metal, directly propelling the floating scrap along the molten surface for a time sufficient for the heat from the molten metal to effectuate substantially complete removal of the contaminants from the scrap and forcibly submerging the remaining decontaminated scrap into the molten metal stream. A system is also provided for removing impurities from the surface of scrap comprising a trough of molten metal, means for moving the molten metal through the trough, means for continuously depositing contaminated scrap onto the molten metal surface, means for propelling the floating scrap through the trough and means for forcibly submerging the remaining floating scrap into the molten metal after the contaminants are substantially completely removed.