Abstract: Disclosed hereis is a casting having a cast exterior surface and a gate portion extending adjacently and integrally from the cast exterior surface and including a polished outer face located in adjacently raised relation to the cast exterior surface and having a perimeter or outline defining a desired indicia. The casting is produced by a method comprising the steps of forming a casting with a cast exterior surface and a gate which extends from the cast exterior surface and which includes a gate portion located adjacent the cast exterior surface and defined by an outline in the form of the desired indicia and a projection portion extending from the gate portion, severing the gate to remove the projecting portion, to retain, as part of the casting, the adjacent gate portion, and to provide a surface raised with respect to the cast exterior surface and having the outline in the form of the desired indicia, and polishing the raised surface.

Abstract: A metal foil made by electroforming from a master pattern with the interposition of a negative form, and serving as packing for sheet guiding cylinders and/or drums of rotary printing machines, including a substantially planar member having one flat face and an opposite face with a textured surface structure corresponding to an upper side of the master pattern, the upper side of the master patten having been roughened by a jet treatment and coated with a levelling galvano-layer in order to eliminate undercuts, the master pattern per se, and method of manufacture.

Abstract: An abrasive tape comprises a flexible substrate and an abrasive layer which is overlaid on the flexible substrate and which contains abrasive grains, a binder, and an additive. The additive contains at least one kind of a compound represented by the general formula of ##STR1## where R.sub.1 represents a monovalent hydrocarbon group having six to 30 carbon atoms, or a fluorine-substituted alkyl group having one to 17 carbon atoms, R.sub.2 represents H or a monovalent alkyl group having one to three carbon atoms, X represents either one of ##STR2## where R.sub.3 is C.sub.3 F.sub.7 and n is an integer of 1 to 30.

Abstract: A process for providing a slip resistant surface by thermally applying a metallic spray coat from materials in a hollow wire with the characteristics of the final coated surface being selectively variable by varying the materials in the hollow wire and an article formed by such process, the slip resistant surface on the article being jagged and generally defined by randomly distributed sharp ridges and pointed peaks of varying depths.

Abstract: A colored zinc composite-plated steel sheet which comprises a steel sheet or a plated steel sheet, a colored composite-plating film comprising zinc and an oxide of a coloring metal such as nickel, cobalt, iron, chromium, tin or copper and provided on the steel sheet at a coverage of 0.1-5 g/m.sup.2 and a transparent guard coat of 3 .mu.m or less thick provided on the film is obtained by carrying out electrolysis in an acidic aqueous solution containing zinc ion, a coloring metal ion and nitrate ion, nitrite ion, perchlorate ion, chlorate ion, condensed phosphate ion and having a pH of 1-4 using the steel sheet or plated steel sheet as a cathode at a current density of 5-100 A/dm.sup.2 and a current quantity of 20-200 coulomb/dm.sup.2.

Abstract: A method for rolling material between rotating rolls utilizing a lubricant, at least one of the rolls having an anistropic working surface that comprises a topography of smooth bearing areas spaced apart by at least one micron-size groove extending around and along the face of the roll in the general direction of rolling. The groove receives and conducts lubricant freely therealong during the rolling process, i.e., as the material to be rolled is directed through the rotating rolls, and is compressed between the rolls, the smooth-bearing areas force lubricant from the areas to the location of the groove in the roll. In this manner, the material is rolled under boundary lubrication conditions.

Abstract: A coated substrate in which the coating includes abrasion-resistant particles protruding from the hardened surface of a metal matrix and is bonded to the substrate.

Abstract: A surface refined sintered alloy with a burnt surface, comprising 75 to 95% by weight of a hard phase containing Ti, C and N as the essential components and otherwise comprising at least one of Zr, Hf, V, Nb, Ta, Cr, Mo and W and the balance of the alloy comprising a binder phase composed mainly of Co and/or Ni and inevitable impurities, wherein the sintered alloy satisfies at least two conditions selected from the group consisting of the following (1) to (3):(1) the average grain size of the hard phase in a surface layer to the inner portion of 0.05 mm from the burnt surface of the sintered alloy is 0.8 to 1.2-fold of the average grain size of the hard phase in the inner portion of the sintered alloy excluding the surface layer;(2) the average content of the binder phase in the surface layer to the inner portion of 0.05 mm from the burnt surface of the sintered alloy is 0.7 to 1.

Abstract: Structurally strong, investment quality gold articles of high troy weight, excellent color and revealing properties and the method of their production are described, including the formation of a structural base from an alloy containing not over 8% of a strengthening material such as chromium, titanium or vanadium, which can provide the required strength and hardness in low concentrations, and overlayment or "overaching" with a gold alloy coating in a manner such that both alloys are visible. The structural base provides the support, strength and resistance to corrosion in articles of various shapes, while retaining a high degree of gold fineness.

Abstract: A foil intermediate layer is arranged between machine parts forming a joint to protect the machine parts against fretting corrosion. The foil intermediate layer includes at least two foils or plies of which the respective inner contact surfaces contacting each other, have a lower coefficeint of friction and a higher resistance to wear and abrasion, than the respective outer surfaces of the foils or plies contacting the joint forming surfaces of the machine parts. Thus, relative motion between the machine parts forming the joint under oscillating loads or vibrations, is transmitted to the easily gliding wear resistant contact surfaces of the plies so that the machine parts are protected from fretting corrosion, whereby their operating lifetime is increased.

Abstract: An uneven patterned metal strip or plate is formed with an uneven pattern as a surface decorative pattern. The pattern is constituted of one or more pattern unit containing a plurality of uneven dot. Each of the uneven dots has a size D. The uneven dots are arranged in a predetermined density to have given ratio .eta. of occupying area versus plane area in said pattern unit. The size D and area ratio .eta. being in a range of:10.ltoreq.D.ltoreq.300 (.mu.m)30.ltoreq..eta..ltoreq.100 (%)and the size of said pattern unit has minimum length of 1 mm.

Abstract: Disclosed herein is an improved new product and a process for its manufacture. The new product is a continuous cast steel bar having improved surface quality when compared to prior art continuous cast steel bars. The improved product is produced by means of a continuous casting machine of the known type having a rotating casting wheel with a peripheral groove which is closed along a portion of its length by a metal band.

Abstract: Surface activated surface alloy electrodes and a process for preparing them high in corrosion resistance and activity, comprising a corrosion-resistant metal selected from, or a corrosion-resistant alloy composed of two or more metals selected from titanium, zirconium, niobium and tantalum, or a corrosion-resistant metal selected from, or a corrosion-resistant alloy composed of two or more metals selected from titanium, zirconium, niobium and tantalum clad with a corrosion-resistant metal selected from, or a corrosion-resistant alloy composed of two or more metals selected from titanium, zirconium, niobium and tantalum, or with any other metal or alloy, rolled or non-rolled, being used as a substrate metal or alloy; an alloy consisting of 20 to 67 atomic % of one or more metals selected from titanium, zirconium, niobium and tantalum, 0.

Abstract: A bonded ceramic-metal composite substrate comprising a ceramic substrate having opposite surfaces and a copper sheet having a face directly bonded to one of the surfaces of the ceramic substrate, wherein the median surface roughness (R.sub.a) of the outer surface of the copper sheet is not greater than 3 .mu.m, and the maximum surface roughness (R.sub.max) of the outer surface of the copper sheet is not greater than 18 .mu.m. The invention improves the manufacturing reliability of various electronic devices such as semiconductor modules.

Abstract: A metal product, such as cold rolled steel sheet, has a surface comprising a plurality of flat, smooth facets which are preferably 50 to 100 .mu.m across and which make up at least 30% of the area of the surface. The facets may be formed either by pressing a network of valleys in a flat, smooth surface or by flattening the peaks of a rough surface.

Abstract: A silicon-free metal powder mixture suitable for filling holes, slots and widegap joints in high temperature superalloys and/or for reforming damaged or missing surface extensions thereof, and capable of being processed at a temperature of about 2000.degree. F. The semi-solid metal mixture has a sufficiently high surface tension and viscosity to be essentially non-flowing at the processing temperature so that it retains its applied shape and location without flowing during processing. The metal mixture after processing has a solidus temperature of at least 1950.degree. F.

Abstract: A grain oriented electromagnetic steel sheet having a very low iron loss is obtained by subjecting a surface of base metal in the sheet after finish annealing to a particular mechanical polishing and has a surface roughness having a center-line average roughness of not more than 0.3 .mu.m after the polishing and the number of abrasive grains embedded in a layer just beneath polished surface of not more than 20,000 grains/cm.sup.2.

Abstract: A deep drawable sheet or strip of metal, preferably aluminum or an aluminum alloy having a surface treated for deep drawing characterized in that the surface has a microroughness, Ra, ranging between about 0.1 and 0.8 .mu.m and a uniform, honeycomb-shaped structure, wherein the honeycomb diameter ranges between about 20 .mu.m and about 200 .mu.m is provided.

Abstract: This invention relates to 2-mercaptothiazoline-containing resinous protective compositions which can be lead-free compositions for mirror-back coatings which are useful in reducing or preventing corrosion.

Abstract: A heat-transfer material includes a tubular body made of a metal. The body includes on an inner surface thereof a porous electroplated layer having re-entrant cavities. A heat transfer material is produced by: preparing a body of a metal serving as a cathode and forming a hydrophobic film on a surface of the body; subsequently keeping the surface of the body and an anode in contact with a plating aqueous solution; and subsequently applying a direct electrical potential betwee the anode and the cathode to cause plating current to flow through the plating solution to lay deposits of plating metal on the surface of the body and laying a number of particulate bubbles on the hydrophobic film on the surface of the body so that the bubbles are enveloped by the metal deposits to form on the surface of the body a porous plated layer having re-entrant cavities.

Abstract: A coated substrate in which the coating includes abrasion-resistant particles protruding from the hardened surface of a metal matrix and is bonded to the substrate.

Abstract: An electrolytically metallized article and process therefore, the process including the steps of electrolytically depositing a metal layer onto a surface of the substrate; and structuring the metal layer to provide regularly distributed openings therein, which openings extend through to the substrate and have an interval between adjacent openings which permits, during any subsequent heat treatment of the metallized substrate, the escape of volatile and volatilizable substances included in the metal layer and the substrate during the electrolyte deposition. The interval between adjacent openings is preferably such that the structured metal layer has no continuous metal portion measured between adjacent openings which exceeds 2 mm.

Abstract: Provided are improved nickel-based surfacing alloys containing from about 0.2% to about 5.0% by weight of either or both hafnium and niobium to the total alloy weight and iron-based surfacing alloys containing the combination of about 1.5% to about 2.5% by weight carbon in conjunction with from about 1.0% to about 2.5.% silicon whereby both types of alloys are characterized by having reduced porosity arising during the process of depositing them in a molten state by a weld surfacing process upon a nitrogen containing steel substrate.

Abstract: A coated metallic article, such as a high strength steel, that exhibits low hydrogen embrittlement carries an electrodeposited coating having a microstructure characterized by a plurality of interconnected escape channels that extend from the coating-substrate interface to the surface of the coating. Determining the presence of the escape channels as well as other microstructural features enables one to readily monitor and control plating processes to assure the production of articles that exhibit low hydrogen embrittlement. Low hydrogen embrittlement characteristics are also linked to the amount of residual hydrogen in the substrate after plating and subsequent heat treatment.

Abstract: A surface treated steel sheet having double layers consisting of a lower layer of metallic chromium and an upper layer of hydrated chromium oxide are formed on a low tin plated steel sheet in which 30 to 80% of the surface of the steel sheet is covered with plated tin. Also, the ratio of the area of tin, which actually combined with steel sheet, to the projected area of plated tin to the steel sheet is 20 to 90% and the size of the exposed steel surface units, after tinplating, is 0.5 to 20 .mu.m in diameter when expressing the irregularly exposed areas as circles, and a method for production of this surface treated steel sheet which comprises; (a) electroplating with a small amount of tin under restricted conditions in order to obtain the low tin plated steel sheet described above, (b) after reflowing or without reflowing of the plated tin, formation of said double layer or formation of the metallic chromium layer followed by formation of hydrated chromium oxide under restricted conditions.

Abstract: A painting steel sheet having an improved distinctness of image after painting has such a surface roughness profile that a center-line average roughness is within a range of 0.3-3.0 .mu.m and a microscopic shape is comprised of mountain portions, groove-like valley portions and middle flat portions satisfying particular dimension relations, and is produced by temper rolling a steel sheet at a draft of not less than 0.3% with work roll dulled to particular dimensions through a high density energy source.

Abstract: A surface treated metal member comprises a metal member having unevenness with a plurality of spherical mark impressions formed on the surface.

Abstract: A painting steel sheet having an improved distinctness of image after painting has a waviness curve of section profile satisfying given relationships, and is produced by temper rolling a steel sheet with work rolls dulled to particular dimensions through laser.

Abstract: This invention relates to Al bearing alloy and a two-layer bearing material consisting of a bearing layer of said Al bearing alloy and a backing metal consisting of a steel sheet or the like. More particularly, the invention concerns an Al bearing alloy, which contains an aluminum alloy matrix having 2 to 35% of Sn, 0.5 to 10%, of Si, 0.1 to 10% of Pb, 0.01 to 0.3% of Sr and 0.01 to 0.3% of Sb, the balance being substantially Al. Additional constitutents may be 0.1 to 4% in total of at least one member selected from the group consisting of Cu, Mg, Zn, Cr, Mn, Fe, Ni, Co, Mo, Ti, V and Zr.

Abstract: A steel sheet for DI can having improved DI workability and resistance to die abrasion has such a surface profile that a center-line average surface roughness is within a range of 0.1.about.4.0 .mu.m and a microscopic shape is comprised of mountain portions, groove-like valley portions and middle flat portions satisfying particular dimension relations.

Abstract: Copper substantially free of micro-pores is electrodeposited on a polished surface of a stainless steel, titanium, or chromium-plated steel press plate. The copper layer is then provided with a matte surface of copper of dendritic structure which is subsequently bonded to a dielectric material under the application of heat and pressure in a laminating press. The resulting copper-clad dielectric board separates from the press plate, which can then be re-used.

Abstract: A heat-transfer material is produced by: preparing a body of metal serving as a cathode; subsequently keeping a surface of the body and an anode in contact with a plating aqueous solution; and applying a direct electrical potential between the anode and the cathode to cause a plating current to flow through the plating solution to produce slime from the anode and to lay deposits of plating metal on the surface of the body and moving the slime to the surface of the body to lay deposits of the slime on the surface of the body, so that the deposits of plating metal and the deposits of the slime jointly form on the surface of the body a porous layer which has minuscule projections of electrodeposits densely formed on one surface of the layer directed away from the body.

Abstract: A cold rolled steel sheet or plated steel sheet having an improved press formability as well as excellent phosphatability, resistance to galling and spot weldability is produced by controlling a surface roughness pattern of the steel sheet so as to satisfy a center-line average surface roughness of 0.3-2.0 .mu.m and a regularity parameter in at least one direction of not more than 0.25 defining the regularity of surface roughness.

Abstract: A product whereby diffraction patterns and holograms directly onto surfaces of metal material, such as aluminum. Products include household aluminum foil with embossed holograms, and aluminum beverage cans with an embossed hologram on its outside.

Abstract: An optical mirror in which a mirror surface formation material, e.g. aluminum, is coated on a substrate consisting of a c/c composite and having a predetermined shape. The coated mirror surface formation material layer is ultrahigh precision machined to a small thickness such that its deformation is suppressed by the substrate.

Abstract: Electrode materials and method for their surface activation are described. Alloys consisting of at least one element of the group consisting of Nb, Ta, Ti and Zr, at least one element of the group consisting of Ru, Rh, Pd, Ir and Pt, and balance being Ni are prepared by methods for preparation of amorphous alloys, and are amorphous or supersaturated solid solution. Their surfaces are activated to enhance electrocatalytic activity by enrichment of electrocatalytically active platinum group elements in the surface region in addition to surface roughening as a result of selective dissolution of Ni, Nb, Ta, Ti and Zr from the alloys during immersion in corrosive solutions. The surface-activated amorphous and supersaturated solid solution alloys possess high electrocatalytic activity and selectivity for a specific reaction as well as high corrosion resistance.

Abstract: The present invention relates to a process for forming improved bonds between components of electrical or electronic devices. The process of the present invention preferably comprises annealing a metallic substrate to form a substantially uniform, substantially continuous oxide layer on a surface of the substrate, exposing the oxidized substrate to a reducing atmosphere so as to form an irregular surface on the substrate, and bonding another component to the irregular surface.

Abstract: A tin-free steel strip comprising a steel strip, 40 to 150 mg/m.sup.2 of a metallic chromium layer on the steel surface, and 5 to 25 mg/m.sup.2 of a chromium compound containing layer thereon wherein the metallic chromium layer contains a plurality of protrusions, exhibits improved corrosion resistance and weldability and is thus useful in the manufacture of welded cans. Preferably, 1.times.10.sup.11 to 1.times.10.sup.14 protrusions having a diameter of 5 to 1000 nm at the base thereof are present per square meter of the metallic chromium layer surface. The tin-free steel strip is produced by chromium plating a steel strip in an aqueous solution containing CR.sup.6+ preferably to a weight of 40 to 140 mg/m.sup.2, subjecting the chromium plated strip to anodic electrolysis, preferably at an eectricity quantity of 0.1 to 10 C/dm.sup.2, and subjecting the strip to a cathodic treatment in an aqueous solution containing Cr.sup.

Abstract: The slide member contains a surface on which a sheet material travels; the surface being composed of a material containing crystals composed predominantly of Si having a size of not larger than 80 microns; the crystals being projected by approximately 0.5 to 3 microns from the surface area of the material and the Si content being in the range from the eutectic range to approximately 30% by weight. The material is a solid solution or a eutectic material containing aluminum as a major component and the crystals composed predominantly of Si. The area where the Si crystals are projected is provided concurrently with an area where the surface is planished or treated so as to give a low coefficient of surface roughness.The slide member permits a decrease in a coefficient of friction on the surface on which the tape is travelling so that it can maintain its initial conditions for a longer period of time than conventional ones.

Abstract: A pressure responsive control device having a pressure housing assembly defining a pressure chamber, an actuable controller fixed to the housing assembly and, a pressure transducer hermetically closing the pressure chamber. The transducer includes plural duplicate snap acting pressure responsive diaphragms, a diaphragm control plate hermetically bonded to the diaphragms and a support member hermetically joined between the control plate and the housing assembly. The diaphragms each are formed from thin sheets of spring metal and includes a central dome section having a surface finish less than 6 microinches A.A. on both sides. The diaphragms are nested together so that confronting faces of the dished sections are engaged when the diaphragms flex.

Abstract: Disclosed herein is a radiant energy reflector comprising a laminated article mounted on a contoured support. The article includes a specularly reflective layer of silver protected on one side thereof from deterioration-inducing agents by a transparent cover sheet of polymeric material, and on the opposite side thereof by a non-polymeric protective layer of substantially inert and corrosion-resistant material. Also disclosed is a method for producing the article which yields an intimate and tenacious bond between the cover sheet, reflective layer and protective layer, thus reducing the likelihood of delamination.

Abstract: Disclosed is a sheet, foil or strip material comprising aluminum or an alloy thereof, which is first mechanically and then electrochemically roughened on one or both surfaces to produce the following parameters:(a) from about 60 to 90% of the surface comprise a basic structure, in which the arithmetic mean of the distribution of diameters D.sub.a1 of the pits is in the range from about 1 to 5 microns,(b) from about 10 to 40% of the surface comprise a superimposed structure formed of elevations having an average base F from about 100 to 1,500 microns.sup.2, in which the arithmetic mean of the distribution of diameters D.sub.a2 of the pits is in the range from about 0.1 to 1.0 micron,(c) the center line average roughnesses R.sub.a of the entire surface are at least 0.6 micron, and(d) the contact area t.sub.pmi of the entire surface is not more than about 20% at a stylus working depth of 0.125 micron and not more than about 70% at a stylus working depth of 0.4 micron.

Abstract: In order to provide a high quality mirror readily at hand for the emergency use of a contact lens wearer, an accessory mirror comprising a thin wafer having a mirrored outer surface is affixed to the back of a wrist watch. The presently preferred embodiment of the invention comprises a steel wafer shaped approximately to conform with the shape of the watch back. The steel wafer has a first surface which is mirror finished and chromium plated and a second surface coated with an adhesive layer which is itself overlayed by a paper wafer. Thus, the paper wafer is removable to permit affixing the steel wafer to the wrist watch back. A process for preparing the preferred embodiment of the product is disclosed. In addition, variants utilizing a plastic film sold under the trademark "Mylar" and coated with metal and incorporating a protective cover for the mirror surface are also disclosed.

Abstract: A master suitable for the manufacture of electroplated negative metal copies. The master comprises a preform which on at least one side has a layer of electroplated aluminum. The surface has a precisely machined profile and is coated with a titanium nitride layer.

Abstract: A method is described for improving the oxidation durability of overlay coatings. By polishing the surface to reduce the surface roughness to less than about 15 microinches AA the initial oxidation durability of the material, the point at which oxide spallation is first observed, can be increased from about 5 hours to about 200-300 hours.

Abstract: The pressure plate of a pressing tool is made of a chromium containing alloy essentially consisting of, each in percent by weight, carbon up to 0.3, silicon up to 1.0, manganese up to 1.5, chromium in the range of 11 to 17.2, molybdenum up to 1.5, nickel up to 6.0, copper up to 4.5, columbium up to 0.45, and nitrogen up to 0.10, the remainder being iron and impurities resulting from the melting conditions, wherein a chromium equivalent defined as the sum of % chromium+% molybdenum+1.5.times.% silicon.times.0.5.times.% columbium has a value smaller than or equal to 17.2, a nickel equivalent defined as the sum of % nickel+0.5.times.% manganese+30.times.% carbon+20.times.% nitrogen has a value greater than or equal to 4.65 the chromium equivalent to nickel equivalent ratio has a value smaller than or equal to 3.0 and the ferrite content is smaller or equal to 5%. The pressure plate is provided with a uniformly structured working surface by chemical or electrochemical etching.

Abstract: To prevent interference from secondary electron emission, a base member, as of a waveguide, which in operation is exposed to high frequency electric fields is provided with a coating comprising a rough surface layer having a thickness less than its skin depth, and a further layer of high electrical conductivity between said rough layer and said base member, the thickness of said further layer being substantially larger than its skin depth. The rough layer preferably has a ratio of mean depth to mean pitch of its random corrugations substantially larger than 1:2.

Abstract: A plain bearing pair comprising a bearing surface in opposed mating engagement with a relatively moveable friction bearing surface wherein the material of at least one of the mating bearing surfaces is formed from an amorphous metal alloy having a predominant refractory metal component and a Vickers Hardness Number in excess of 1000.

Abstract: A process for forming a substantially planar porous metal coating on a substrate which comprises thermal spraying of the metal on the substrate to form a porous metal coating on the substrate, rolling the sprayed coating to render it substantially planar and in the process close the pores, and then removing part of the surface to improve planarity and to reopen the surface-connected pores of the surface. The metal to be sprayed may be in the form of a wire, powder or molten metal mass and be selected from the group consisting of aluminum, zinc, tin, copper, nickel, or their alloys. Preferably, the substrate is selected from the group consisting of steel, aluminum, aluminized or galvanized steel, tin plate, and plastic. The spraying is preferably conducted in a non-oxidizing or reducing atmosphere. Preferably, the coating on the substrate is subjected to cold rolling. Most preferably, the rolling is conducted so as to reduce the coating thickness to approximately half of its original thickness.

Abstract: A sliding member made with amorphous metallic material on the sliding surface. The sliding member has a small coefficient of friction with magnetic tape by constructing the member in this manner together with high hardness. Accordingly, it can prevent magnetic tape from adhering to the member and thus has excellent running characteristic.