Abstract: Die castings are made from metal compositions that are fully liquid or as a preferred embodiment contain between about 10 and 85 weight percent degenerate dendrites. The composition is injected into the cavity of a die at a mean die temperature which is as near to ambient temperature as possible and usually less than about 400.degree. F. The die is formed of a material having a thermal diffusivity of at least about 0.5 cm.sup.2 /sec. The castings are ejected and the die surface is sprayed with a liquid to bring the die surface temperature back to the mean die temperature or below in the shortest possible time. The time between injection and ejection is less than about 1 minute and the time between ejection and spraying is less than about 30 seconds.

Abstract: A foundry molding machine of the horizontal stack type such as shown in Hatch U.S. Pat. No. 3,958,621 employs a programmable solid state electrical control system operating in conjunction with a closed-loop hydraulic servo-system to obtain greater flexibility of set-up and higher mold uniformity and precision with fewer reject molds. Each of four of the major moving components of the machine may be provided with an encoder or position, velocity and direction monitoring device, such components being the two opposed squeeze rams, the mold traction device, and the pusher. Such monitors not only measure the final position of one squeeze ram, but also enable the calculation or measurement of the mold thickness so that the pusher cylinder can be controlled during its movement to contact a formed cake at a null condition and to move that cake into contact also at a null condition with a horizontally formed stack.

Abstract: A method is described reducing remaining tensions and corrosion resistance in welded joints by explosion finishing thereof, comprising disposing over the axis of the weld seam an explosive charge in the form of a periodic curve, the axis of which is substantially co-extensive with that of the weld seam with the amplitude thereof extending from one side of said seam to the other, and then detonating said explosive charge. In one embodiment an auxiliary explosure charge is disposed substantially linearly over the axis of the weld seam to assure complete detonation of the charge disposed in the form of a periodic curve and comprising the main charge, and then both charges are simultaneously detonated.

Abstract: A method for controlling a casting and rolling mill by measuring the speed of a cast strip between the casting machine and the first following rolling mill and regulating the speed of the casting machine directly proportional to the measured speed of the cast strip. It is thus possible to avoid auxiliary equipment required in prior art systems such as pinch rolls and a continuous furnace between the casting machine and the first following rolling mill. Furthermore no loop on the cast strip is required. As a result, great reductions in capital expenditures, the energy required to operate the line and the necessary space can be obtained.

Abstract: A method is disclosed for the production of amorphous metal tapes by rolling and cooling a molten metal stream between the contact faces of one roll and one metal belt. Tapes having controlled dimensions may be obtained.

Abstract: In order to be able to locate stuck rollers of a roller way as early as possible, with longer operational interruptions being avoided and the demounting of constructional parts of the roller way being not necessary, an arrangement for this purpose includes a supporting body which is movable along the roller way and carries a frictional head. The frictional head is pressable against the surface areas of subsequently arranged rollers. Means are provided for recording and measuring a difference between the velocity of the supporting body with which the latter is moved along the roller way and the velocity of the frictional head getting into contact with a roller.

Abstract: Apparatus for and method of die casting a part with a particulate inert filler material (e.g., sand) substantially uniformly dispersed through the casting thereby to decrease the amount of metal required to die cast the part.

Abstract: The disclosure is of a novel closure for air evacuated tubular containers and comprises a tubular body having flexible, elastic sidewalls, an open end, a closed end formed by a cannula-pierceable, flexible, elastic end wall having a concavo-convex configuration in cross-section and a flange disposed radially about the periphery of the open end. The novel closure structure takes advantage of the vacuum force in the container to maintain a gas-proof, hermetic seal, reduces the thickness required of the closure to maintain the hermetic seal and is easier to assemble in an air evacuated container. The disclosure is also of a novel method of assembling the closure of the invention in an air evacuated tubular container.

Abstract: A process for producing spherical graphite cast iron characterized by arranging a required amount of sphering alloy blocks in the hollow part for making a product of a casting mold and then pouring a melt into the casting mold; and a process for producing compound castings consisting of spherical graphite cast iron and ordinary cast iron characterized by arranging a required amount of sphering alloy blocks in the hollow part for making a product and requiring the strength of the product of a casting mold and pouring an ordinary cast iron melt into the casting mold.

Abstract: In a device for the horizontal continuous casting of ingots or billets without pronounced structure there is provided in the wall of the trough an opening which connects up with another opening in the lower part of a disc-shaped nozzle which is used to transfer the molten metal to the mold. For casting rectangular ingots this nozzle opening is in plan view approximately in the form of a dog bone shaped slit, and is provided with a run-out surface inclined in the direction of casting and running into the inner face of the mold. The opening forms a trumpet-shaped taper towards the inside of the trough.

Abstract: Apparatus for measuring injection speeds of a die casting machine comprises a detecting device for detecting injection times at low and high speed injection strokes, calculating elements for calculating low and high injection speeds by dividing the low and high injection strokes by the injection times, and displaying elements for displaying the low and high injection speeds as average injection speeds. The injection time detecting device includes an elongated member having different magnetic characteristics, an element responsive to the characteristics to generate pulse signal, low and high speed injection limit switches, and a discriminating element for discriminating the period of the signal generated by the pulse signal generating element. The injection speeds of the die casting machine can be measured and displayed by the interrelative operations of the elements and devices described above.

Abstract: A method of quickly predicting the degree of nodularity of spheroidal graphite cast iron from a molten iron sample is disclosed. The method comprises steps of reading out the lowest temperature T.sub.EU due to undercooling and the highest temperature T.sub.EM due to recalescence subsequent to the undercooling which occur at the time of eutectic solidification of a number of samples of molten iron for spheroidal graphite cast iron during cooling and solidifying under a predetermined cooling condition; reading out an elapsed time Z from the lowest temperature T.sub.EU to the highest temperature T.sub.EM ; determining constants a, b, c and e in the following formula which shows a relation between the values of the thus read out temperatures and the elapsed time and any of the characteristics D.sub.

Abstract: A magnetic shielding enclosure is fabricated by a simple method of folding magnetically permeable material to provide essentially a gapless two-layered shield with small corner and edge radii.

Abstract: Improvements of a process for producing a non-directional electrical steel sheet free from ridging, which comprises making a molten steel into slabs by continuous casting, hot rolling the slab, cold rolling the hot rolled product into a final thickness by a single step, and subjecting the cold rolled product to decarburization annealing, said molten steel consisting essentially of not more than 0.02% C, 1.5 to 4.0% Si, not more than 1.0% Al, with the balance being Fe and unavoidable impurities, said hot rolling being done at a temperature in a range of from 900.degree. to 1100.degree. C.

Abstract: An improved nozzle is disclosed for a strip casting apparatus wherein molten metal is delivered to a casting surface located within about 0.120 inch of the nozzle, and is movable past the nozzle at a speed of from 200 to 10,000 linear surface feet per minute. The improved nozzle comprises a pair of spaced orifice lips substantially parallel to and facing one another, with the spacing being substantially uniform throughout the majority of the longitudinal extent of the nozzle. The peripheral end portions of the orifice lips continuously diverge outwardly from one another for a length of less than about three times the substantially uniform spacing between lips, and for a height of less than about two times the substantially uniform spacing between lips.

Abstract: Strips of amorphous metal containing embedded particulate matter and method for making it. Strips of amorphous metal containing embedded particles of abrasive material are useful for working the surfaces of solid articles by abrasion for forming or surface improvement. The method of making such strips involves forcing molten metal of a glass-forming alloy containing admixed particulate matter onto the surface of a moving chill body under pressure through a slotted nozzle located in close proximity to the surface of the chill body.

Abstract: A method and apparatus for controlling an injection process in cold-chamber die-casting machines which work on a three-phase system whereby an automatic initiation of the third phase without delay is possible. Beginning with the plunger of the apparatus in a certain starting position, the time is measured which elapses until a pressure in a working cylinder ahead of the plunger has reached a predetermined value. The time delay of the valve system which releases the pressure medium feed in the third phase is subtracted from the time measured so as to arrive at a time differential. At the end of the time differential, which elapses when the injection process begins with the plunger in its original or starting position, serves as a starting signal to trigger the valve system.

Abstract: The specification describes a method and apparatus for deoxidizing steel. Molten steel is tapped into a ladle in which a preliminary deoxidizer of ferrosilicon or the like is added. From the ladle, the molten steel is poured into a runner which is interconnected with a plurality of molds and a deoxidizer chamber. The molten steel flows toward the molds through the deoxidizer chamber dissolving a final deoxidizer. The final deoxidizer is aluminum or a mixture of aluminum with silicon, calcium, magnesium, or their alloys. The molten steel with the dissolved deoxidizer flows into the molds. The deoxidizer chamber is configured and the final deoxidizer is formulated in such a manner that the final deoxidizer is dissolved at a substantially constant rate by the flowing molten steel.

Abstract: A leakproof soldered joint between overlying surfaces of two pieces of metal which are riveted together to bring areas of said surfaces into intimate contact with one another all around the holes through which the rivets pass, said joint being achieved by a method which, before the riveting operation, involves placement of thin washers of solder between said pieces of metal in register with aligning rivet holes therein, to establish a slight space between said pieces, and after the riveting operation, applying molten solder to all of the marginal edges of said overlying surfaces of the two pieces of metal so as to cause it to flow by capillary action between the entire areas of said overlying surfaces, and utilizing the heat of the molten solder to melt said washers and thereby cause molten solder therefrom to flow into any and all interstices between the rivets and the edges of the holes through which they pass.

Abstract: A method of forming filaments, particularly continuous strips, sheets or the like, by rotating a chill wheel against a meniscus of molten material formed about the periphery of an elongate orifice through which the molten material is fed under uniform fluid pressure along the longitudinal axis of the orifice. Filaments of different widths, thicknesses and composite structures are extracted by utilizing single or plural chill wheels in conjunction with plural orifices.