Abstract: A ceramic surface-metallic core particle composite fine powder material is disclosed, composed of fine particles each having a metallic core and a ceramic surface layer, in which the average value of the ratio of the thickness of the surface layer of a powder particle to the radius of the particle is subtantially greater than 0.05. A method and an apparatus for making this material from core metal and a gas which combines with the core metal to form the ceramic outer layer are also described, in which a gaseous mixture of vapor of the core metal and the gas is passed through a convergent-divergent nozzle and is thereby rapidly cooled by adiabatic expansion so that the core metal as it solidifies forms metal cores for fine particles while the gas reacts with the outer layers of these particles to form ceramic surface layers.

Abstract: A cold rolled dual-phase structure steel sheet having an excellent deep drawability is disclosed, which consists of ferrite phase and low temperature transformation product phase and comprises 0.001-0.008 wt % of C, not more than 1.0 wt % of Si, 0.05-1.8 wt % of Mn, not more than 0.15 wt % of P, 0.01-0.10 wt % of Al, 0.002-0.050 wt % of Nb and 0.0005-0.0050 wt % of B provided that the value of Nb (%)+10B (%) is in a range of 0.010-0.080%, and, if necessary, 0.05-1.00 wt % of Cr and the balance being substantially Fe with inevitable impurities. This steel sheet is manufactured by hot and cold rolling a steel slab with the above chemical composition and continuously annealing the resulting steel sheet in such a manner than the steel sheet is heated and soaked at a temperature from .alpha..fwdarw..gamma. transformation point to 1,000.degree. C. and then cooled at an average cooling rate of not less than 0.5.degree. C./sec but less than 20.degree. C.

Abstract: A device is provided for transporting profiles, such as T, U, I, angle, flat and Holland profiles, in profile processing lines particularly lines which include marking and torch cutting equipment. The transport device is in the form of a car having at least one profile carrier.

Abstract: A process for producing a low yield ratio, high strength two-phase steel sheet comprising hot rolling a steel composition containing 0.03 to 0.13% C, 0.8 to 1.7% Mn, not more than 0.1% Al, not more than 2.0% Si and not more than 0.5% Cr with a finishing temperature ranging from 750.degree. C. to 890.degree. C., rapidly cooling the strip to a temperature not higher than 230.degree. C., and coiling the strip at a temperature not higher than 230.degree. C. with the temperature variation during the period between the start and end of the coiling being no more than 100 degrees C. The Si content is limited to 1% or less for applications where paintability is of primary importance, and is limited to a range of from 1 to 2% for applications where the ductility is of primary importance. The process effects improvements in the artificial ageing property after working which improvement is uniform throughout the whole length of a coiled strip. The product obtained by the process is also described.

Abstract: A high strength, high ductility, low carbon, dual phase steel wire, bar or rod and process for making the same is provided. The steel wire, bar or rod is produced by cold drawing to the desired diameter in a single multipass operation a low carbon steel composition characterized by a duplex microstructure consisting essentially of a strong second phase dispersed in a soft ferrite matrix with a microstructure and morphology having sufficient cold formability to allow reductions in cross-sectional area of up to about 99.9%. Tensile strengths of at least 120 ksi to over 400 ksi may be obtained.

Abstract: An apparatus and a method destined for the production of metal powder, wherein inert gas, especially argon is admixed to a metal melt rising in a riser, thereby forming a metal froth which is pressurized likewise by inert gas, especially argon of high pressure in a pulverization chamber, at the same time, forming metal droplets. These are displaced from the pulverization chamber by the gas blown into the same, to enter an expansion chamber in the form of a collecting vessel, the metal droplets being accelerated in the passage from the pulverization chamber to the collecting vessel, at the same time, forming the finest metal powder.

Abstract: In a torch cutting machine for thermally cutting hot elongate members which are conveyed horizontally at a varying speed or with a varying direction of movement, a torch-carrying carriage is movable parallel to and with the elongate member during the cutting operation, by virtue of a clamping means engaging the elongate member. A protective hood is disposed in the direct vicinity of the elongate member, beneath the machine, for the purposes of protecting it from heat and radiation. The hood moves synchronously with the machine or elongate member in the cutting operation, and the hood has apertures through which the torch and the clamping means extend.

Abstract: A safety arrangement in a so-called gas-cutting lance (1) arranged to be connected at one end (2) thereof, the attachment end, to a gas-supply handle (3) or like means for causing gas, primarily oxygen gas, to flow through the lance. The lance comprises a hollow tube (5) which preferably houses a core (6) of, for example, closely packed filaments (7). The tube and the core comprise a material having a high iron content and are intended to melt progressively at the free end of the lance and to burn, to oxidize, at least in part.The arrangement is characterized in that preferably at least the lance (1) includes at least one substantially tubular sleeve (8,9) or like member in the vicinity of the attachment end (2) of the lance.

Abstract: A powdered material is provided for thermal spraying comprising a mixture of self-fluxing matrix allow powder and a powder of at least one metal carbide, the carbide content of the mixture consisting essentially between 20 and 80 percent by thereof and the matrix alloy having the following composition, in percent by weight:______________________________________ Cr 18.0-35.0% Fe 0.1-25.0% B 0.5-4.5% Si 0.5-5.5% C 0.01-2.0% Mo 0-15.0% Nb 0-2.0% Ni Remainder.

Abstract: An Al-killed cold-rolled steel sheet with excellent demagnetization characteristics is provided which is substantially consisted of 0.005% or less C; from 0.05 to 0.50% Mn; 0.010% or less S; from 0.01 to 0.08% Sol.Al; 0.0050% or less N; wherein Mn %/S %.gtoreq.7 and (Sol.Al % - 0.003%)/N %.gtoreq.6; and the remainder iron and inevitable impurities. A shadow mask made of such Al-killed cold-rolled steel sheet and a color television receiver using the same exhibit a very excellent function. A preferred process for producing such an Al-killed cold-rolled steel is also provided, said process being characterized in first obtaining a steel or a specific composition by the use of a vacuum degassing apparatus and then subjecting the steel to sequential steps of hot rolling, cold rolling, decarburization-annealing, and cold rolling.

Abstract: High-strength, deep-drawable, steel sheet exhibiting dual-phase properties is produced by (i) initially annealing the sheet to achieve crystallographic textures yielding high deep drawability, (ii) heating the sheet to a temperature above the A.sub.1 for a time sufficient to produce from 2 to 10% austenite, and thereafter (iii) rapidly cooling to transform at least a portion of the austenite to martensite or bainite. To achieve such transformation of austenite, the composition of the steel must be selected to provide a requisite degree of hardenability.

Abstract: A motorized hand torch with an improved brake mechanism is provided. The brake mechanism includes a brake lever which is manually actuable to either a locked or an unlocked position. The brake lever, in turn, has a cam portion thereon which moves a pivotally mounted leaf spring so as to selectively lock a mounting bracket supporting a drive wheel whereby straight line cutting may be accomplished. A circle cutting attachment is also provided which includes a means for preventing locking the mounting bracket.

Abstract: A process for producing rolled steel products, especially reinforcing rod for concrete or other elements to be encased in concrete and having good weldability, a high yield strength and high energy absorption for the Charpy V impact test at very low temperatures comprising forming a silicon and aluminum containing steel whose carbon content (C), manganese content (MN), and niobium content (NB) are related by the relationship set forth below. The steel blank is rolled so that the last three passes result in more than 20% of the total cross section reduction, these rolling passes are carried out so that the temperature T1 before, the temperature T2 during, and the temperature T3 after rolling are also related to the diameter D in the manner set forth below to yield a high yield strength LE and a high energy absorption expressed as KCV at -120.degree. C. The relationships are:LE=1035+510 C+192 MN+2270 NB-0.21 T1-0.42 T2-0.48 T3-3.51 DandKCV=2202-2066 C+23.20 MN-2064 NB-0.77 T1-1.24 T2-0.23 T3-1.98 D.

Abstract: A process for manufacturing a high tensile steel wire, characterized by comprising the steps of pre-cooling a hot-rolled steel rod to a temperature between 750.degree.-900.degree. C. by means of a cooling apparatus provided between a group of intermediate rolling mills and a group of finishing rolling mills in a hot rolling line for steel rod, finishing rolling the thus pre-cooled steel rod, quenching the hot rolled steel rod to a temperature of 700.degree. C. or lower to provide a supercooled austenite phase, then finishing-cooling the thus quenched rod to provide martensite, and drawing the resulting steel rod with roller dies without descaling is disclosed.

Abstract: Herein disclosed is a process for producing a steel bar or steel wire having an improved structure of spheroidal cementite. The process is characterized in that a finish rolling is conducted within a temperature range between Ar.sub.1 and Ar.sub.3 or Arcm with a reduction ratio of at least 20%.The cooling rate of the steel before the finish rolling should be controlled in the following manner:When the hardenability of the steel is not higher than that of 0.15% C plain carbon steel, it is preferable to cool the steel at a cooling rate higher than 250.degree. C./sec.When the hardenability of the steel is between those of 0.15% to 0.4% C plain carbon steel, it is preferable to cool the steel at a cooling rate higher than 10.degree. C./sec.When the hardenability of the steel is not lower than that of 0.4% C plain carbon steel, it is preferable to cool the steel at a cooling rate higher than 2.degree. C./sec.

Abstract: A process for producing titanium metal in finely-divided particulate form, by forming a liquid mixture of titanium and zinc, fracturing and solidifying the liquid mixture and evaporating zinc from the resulting finely-divided particles to produce finely divided particulate titanium. Titanium alloys may be produced by adding an alloying metal or metals to the liquid titanium-zinc mixture prior to fracturing, solidification and zinc evaporation. The liquid mixture of titanium and zinc may be produced by reaction of a reducing metal in a liquid mixture of zinc and reducing metal with titanium tetrachloride to produce reducing metal chloride and a liquid mixture of titanium and zinc. The reducing metal chloride is separated from the mixture of titanium and zinc. The alloying metal may be added to the liquid mixture of titanium and zinc by reacting alloying metal chlorides with the reducing metals in the liquid mixture of zinc and reducing metal.

Abstract: A self contained jet perforator torch (10) for defining large holes (H) in workpiece (W) such as a large bomb, includes a plurality of ports (68) fluidically connecting a combustion chamber with a slot-like chamber (62). The ports and the slot-like chamber extend at an angle with respect to the longitudinal centerline of the torch whereby fluid exiting the torch contacts a workpiece at an angle (I) with a normal (N) extending from the workpiece.

Abstract: An apparatus for internally removing a raised weld bead of a longitudinal seam welded tube having an elongate mandrel support body. A cutting tool is mounted on the support body adjacent one of its ends and projects outwardly from one surface on the body. A pivot roll and a stabilizing roll are mounted in the support body in spaced relation in the elongate direction of the body and project outwardly from the same surface as the cutting tool. A resiliently mounted carriage roll disposed between the pivot roll and the stabilizing roll which projects outwardly from the surface of the support body opposite the one surface. A tilting roll remotely disposed from the cutting tool and moveable in either vertical direction by cams to effect pivotal movement of the support body about the pivot roll, and advance and retract the cutting tool with respect to the internal weld bead.

Abstract: This invention is directed to the treatment of copper beryllium alloys, and to articles and parts made therefrom, containing special small amounts of beryllium and nickel, e.g., about 0.05% to about 0.5% beryllium and about 0.05% to about 1% nickel where cobalt may be substituted for up to about one-half of said nickel content at a substitution ratio of about 1 part by weight cobalt for about 2 parts by weight nickel, which imparts to these alloys a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength by the process of solution annealing, cold working at least about 50% or at least about 70% or 90% or more and age hardening.

Abstract: A method for manufacturing steel sheet for easy open end cans superior in openability comprising an improvement in the conventional process which includes the steps of hot rolling, first cold rolling, annealing and second cold rolling. The improvement resides in the operation of the second cold rolling reduction according to the formula: 100-0.08.times.(C+1,000.times.P)-0.8.times.H>R>20 and 45>R. This formula expresses the relationship between hardness, carbon content and cleanliness after annealing, whereinR: second cold reduction (%)C: carbon content after annealing (ppm)P: cleanliness after annealing (d60.times.400 . . . %)H: hardness after annealing (Hr 30T).