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Patent Searching and Data


Matches 601 - 650 out of 15,392

Document Document Title
WO/2011/079360A3
The present invention addresses the problem of how to prevent the nitrided layer on piston rings for flex-fuel engines from becoming detached, without affecting wear resistance. For that purpose, a nitrided piston ring (100, 100') is pro...  
WO/2011/076397A1
The invention concerns a drive belt (10) comprising a multitude of plastic transverse segments (13) that are each provided with at least one, but typically two recesses, each such recess accommodating only a single, flexible steel ring (...  
WO/2011/077945A1
Provided is a nitriding process for maraging steel, by which the compressive residual stress of maraging steel can be enhanced. On the surface of a work of maraging steel, part of the titanium solid-soluted in the work is oxidized with o...  
WO/2011/077904A1
Disclosed is a connecting rod (1) which comprises a rod main body (10), a small end part (20) that is provided on one end of the rod main body (10), and a large end part (30) that is provided on the other end of the rod main body (10). T...  
WO/2011/073577A3
The invention relates to a method of obtaining a cooking vessel, comprising the following steps: a vessel (10) is produced by drawing an ordinary steel substrate (16); a nitrocarburizing treatment and an oxidizing treatment are carried o...  
WO/2011/047930A1
The invention relates to a method for increasing the strength of components (1) made of steel, in particular pressurized components of fuel injection systems and/or components of fuel injection systems subjected to high mechanical loads,...  
WO/2011/040587A1
Disclosed is a steel for machine structural use including 0.05-0.8% of C, 0.03-2% of Si, 0.2-1.8% of Mn, 0.1-0.5% of Al, 0.0005-0.008% of B, and 0.002-0.015% of N, and including 0.03% of P or less (excluding 0%), 0.03% of S or less (excl...  
WO/2011/040243A1
Provided is a method for performing shot peening (hereinafter abbreviated as "SP") on a treatment surface of a work piece which is a steel product that was subjected to heat hardening, the aforementioned method being such that it is poss...  
WO/2011/030827A1
Disclosed is a process for producing a carbonitrided member using a base steel material comprising (in mass%) 0.10 to 0.35% of C, 0.15 to 1.0% of Si, 0.30 to 1.0% of Mn, 0.40 to 2.0% of Cr, 0.05% or less of S, and optionally 0.50% or les...  
WO/2011/029565A1
The invention relates to a method and device for thermally treating workpieces, said device comprising a cooling chamber and two or more cementing chambers in which the workpieces are heated to a temperature of 950 - 1200 °C by means of...  
WO/2011/022463A3
A new process for forming deeply carburized, case-hardened low- to medium-carbon steel for use in high wear, high toughness applications. The process involves subjecting the steel to a carburizing heat treatment, then subjecting the carb...  
WO/2011/022463A2
A new process for forming deeply carburized, case-hardened low- to medium-carbon steel for use in high wear, high toughness applications. The process involves subjecting the steel to a carburizing heat treatment, then subjecting the carb...  
WO/2011/018922A1
A casting die which provides a high molten metal fluidity and a high mold releasability is realized. A die (10) is provided with a dimple region (D) in which a plurality of semisphere-shaped first dimples (12) formed in a cavity surface ...  
WO/2011/017495A1
Low temperature carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. As a result, formation of soot and the undesirable...  
WO/2011/013559A1
A steel base (1) is nitrided to form a nitrogen compound layer (2) on the surface thereof and to diffuse nitrogen into a surface layer part (1d) of the steel base (1) coated with the nitrogen compound layer (2). This steel base (1) is su...  
WO/2011/013362A1
Provided is a production process for preventing a compound layer formed on a surface of a steel material by nitriding from being oxidized by induction hardening. In the process, an antioxidation coating film is less apt to have uneven th...  
WO/2011/013360A1
Disclosed is a means for preventing oxidation of a compound layer by high-frequency hardening, said compound layer having been formed on the surface of a steel material by nitriding. Specifically disclosed is a treatment liquid for formi...  
WO/2011/013361A1
Disclosed is a means for preventing oxidation of a compound layer by high-frequency hardening, said compound layer having been formed on the surface of a steel material by nitriding. Specifically disclosed is a treatment liquid for formi...  
WO/2011/009463A1
A method of activating an article of passive ferrous or non-ferrous metal by heating at least one compound containing nitrogen and carbon, wherein the article is treated with gaseous species derived from the compound. The activated artic...  
WO/2011/007817A1
A nitriding treatment (step S6) for increasing the N content in a decarburization-annealed steel strip is carried out between the initiation of decarburization annealing (step S4) and the development of secondary re-crystals in finishing...  
WO/2011/007771A1
In the disclosed method, a silicon steel material is heated (step S1) in a predetermined temperature range in response to the quantity of contained B, N, Mn, S, and Se, and then hot rolling (step S2) is performed. Furthermore, the end te...  
WO/2010/145674A1
A wellbore tubing expansion cone comprises a cone body (5) having a steel structure defining an outer conical circumferential surface portion and further comprises a coating (19) covering at least the conical surface portion of the steel...  
WO/2010/147224A1
Provided is a steel for nitriding, which has a reduced strength before nitriding and therefore exhibits improved machinability. In the steel for nitriding, addionally, a nitrided layer with a large effective case depth can be formed for ...  
WO/2010/147541A1
The invention relates to an engine valve comprising a chromiferous steel and a protective surface layer (5) which consists of iron chrome oxide. The invention relates further to a method for manufacture of an engine valve with a protecti...  
WO/2010/144786A3
A rotomolding tool having a textured surface is provided. The tool comprises a shell having a body portion and an upper mold surface having a grain texture, at least the body portion comprising a nickel-iron alloy having a coefficient of...  
WO/2010/144786A2
A rotomolding tool having a textured surface is provided. The tool comprises a shell having a body portion and an upper mold surface having a grain texture, at least the body portion comprising a nickel-iron alloy having a coefficient of...  
WO/2010/140508A1
Disclosed is a method for carburizing a tantalum member, wherein a tantalum member can be uniformly carburized, while experiencing little deformation due to the carburization and having good flatness in a flat portion. Specifically discl...  
WO/2010/140700A1
Provided are beautiful chromatic titanium in which adhesion to the base constituted of pure titanium and a titanium alloy is satisfactory and which has excellent photocatalytic activity and a highly attractive appearance and a process fo...  
WO/2010/140571A1
Provided are a titanium plate which has satisfactory seizing resistance and crack resistance, whereby the plate exhibits excellent press formability, and a process for producing the titanium plate. The titanium plate (10) comprises a tit...  
WO/2010/138369A1
A razor blade including a substrate with a cutting edge, the substrate includes a mixed nitride-substrate interregion disposed at or beneath a surface of the substrate, the mixed nitride-substrate interregion being substantially free of ...  
WO/2010/137607A1
Provided is a carburized component having excellent fatigue strength in the "low-to-mid-cycle regime." Said carburized component comprises a steel having a chemical composition as follows: the base steel contains 0.15–0.25% carbon, 0.0...  
WO/2010/130484A3
The invention relates to a method for carbonitriding at least one metal part in which the metal part is heated to a treatment temperature in a heating phase (1), is nitrided with a nitrogen donor gas in at least one nitriding phase (2a-2...  
WO/2010/130484A2
The invention relates to a method for carbonitriding at least one metal part in which the metal part is heated to a treatment temperature in a heating phase (1), is nitrided with a nitrogen donor gas in at least one nitriding phase (2a-2...  
WO/2010/130936A1
Method of reinforcing a mechanical part (12) made of a ferrous alloy. According to the invention, said method includes a step (2) of reducing the hardness of said part (12) by low-frequency induction heating to a temperature lying in the...  
WO/2010/127015A2
A structural component suitable for use as refinery and / or petrochemical process equipment and piping is provided. A method to improve corrosion, abrasion, and fire resistant properties of the structural component is also provided. The...  
WO/2010/127015A3
A structural component suitable for use as refinery and / or petrochemical process equipment and piping is provided. A method to improve corrosion, abrasion, and fire resistant properties of the structural component is also provided. The...  
WO/2010/116670A1
Provided is a carburized steel part obtained by subjecting a base material to a cutting treatment and a carburizing treatment, wherein the base material contains C (not less than 0.3 to 0.6% by mass), Si (0.01 to 1.5% by mass), Mn (0.3 t...  
WO/2010/113749A1
Provided are a Cu-Zn-Sn alloy plate and a tin-plated Cu-Zn-Sn alloy strip having not only excellent pressing processability, but also excellent strength, electrical conductivity, and bending processability. The Cu-Zn-Sn alloy plate compr...  
WO2010110145A1
Bearing parts which are produced by employing, as the raw material, a steel containing a reduced amount of alloying elements, and which can ensure high fracture toughness values and exhibit sufficient wear resistance. An outer ring (21),...  
WO2010110379A1
Provided is a maraging steel strip which has such a composition that can reduce the content of TiN acting as the starting point of fatigue fracture in a high-cycle region, and the bending fatigue strength of which has been improved by th...  
WO/2010/106749A1
Provided is an aluminum member covered with a conductive coat, wherein the conductive coat, which guarantees the electrical conductivity of the surface, is prevented from peeling off from the aluminum member because of moisture, even whe...  
WO/2010/104806A1
Methods for processing substrate surfaces carrying coatings comprising a metal are disclosed. The methods involve providing a substrate surface having a coating comprising a metal, and exposing the substrate surface to a halogen-containi...  
WO/2010/094891A1
The invention relates to a method for processing parts for kitchen tools in order to protect said parts from scratches, characterised in that said method comprises sequentially: a nitridation step, optionally including a nitrocarburizing...  
WO/2010/092173A1
In order to simplify a generic method for producing a hollow body and at the same time to improve the shape flaws, the dimensional stability, and the quality of the functional surfaces, it is proposed that the cylindrical inner surface o...  
WO/2010/093034A1
Provided is a method for producing a metal tube which has excellent carburization resistance and coking resistance in a carburizing gas atmosphere. The inner surface of a metal tube containing 20 to 55% by mass of Cr and 20 to 70% by ma...  
WO/2010/082403A1
A titanium alloy screw produced from a titanium alloy screw material which has undergone plasma carburizing. The screw has a hardened groove bottom part and, hence, has a reduced coefficient of friction and improved fastening characteri...  
WO/2010/082685A1
Disclosed is a steel for surface hardening for machine structural use, which contains, in mass%, 0.3-0.6% of C, 0.02-2.0% of Si, 0.35% or more but less than 1.5% of Mn and 0.01-0.5% of Al, while suppressing the B content to less than 0.0...  
WO/2010/080369A2
A wear component (20) includes a base metal (40) and a carburized case (28) on the base metal. The carburized case may have a first region (24) having greater than or equal to about 75% volume fraction of carbides and a second region (26...  
WO/2010/080369A3
A wear component (20) includes a base metal (40) and a carburized case (28) on the base metal. The carburized case may have a first region (24) having greater than or equal to about 75% volume fraction of carbides and a second region (26...  
WO/2010/070742A1
Disclosed is a titanium material having excellent surface characteristics. Also disclosed is a method for easily producing a titanium material having excellent surface characteristics. Specifically disclosed is a titanium material charac...  

Matches 601 - 650 out of 15,392