| Patents for C23C 8 - Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals (10,951) |
|---|
| 09/03/1992 | WO1992014863A1 Method and apparatus for gas phase diffusion alloying |
| 09/03/1992 | DE4119820C1 Treatment of iron@ (alloys) on same support - comprises nitriding in molten alkali metal cyanate and quenching in hot aq. salt bath |
| 09/03/1992 | DE4106745A1 Plasma nitriding of aluminium@ (alloy) components - at temps. below component m.pt., producing very hard, wear- and corrosion-resistant aluminium nitride coatings |
| 09/02/1992 | EP0501047A1 Method for manufacturing aluminum foils used as electrolytic capacitor electrodes |
| 09/02/1992 | CN1018059B Method for manufacturing piston |
| 09/01/1992 | US5143559 Carbon steel |
| 08/25/1992 | US5141567 Surface treatment; wear resistant protective coatings |
| 08/20/1992 | WO1992013666A1 Process for producing a surface-hardened workpiece of sintered iron |
| 08/19/1992 | WO1992014858A1 Process for forming passivated film |
| 08/19/1992 | WO1992014857A1 Passivating apparatus |
| 08/19/1992 | CN1017921B Stove |
| 08/19/1992 | CA2100755A1 Passivating apparatus |
| 08/19/1992 | CA2100751A1 Process for forming passivated film |
| 08/18/1992 | US5139584 Causing gaseous hydrocarbon flux to circulate in furnace in contact with surface, the flux having a variable, controlled composition |
| 08/13/1992 | DE4140148A1 Verfahren zum herstellen eines oberflaechengehaerteten werkstuecks aus sintereisen Method of manufacturing a oberflaechengehaerteten werkstuecks from sinter iron |
| 08/12/1992 | EP0498781A1 Cemented carbide body |
| 08/11/1992 | US5137774 Multi-oxide coated carbide body and method of producing the same |
| 08/11/1992 | US5137565 Method of making an extremely fine-grained titanium-based carbonitride alloy |
| 08/11/1992 | US5137375 Carburized alloy steel rings; transmisstions, automobile engines |
| 08/06/1992 | CA2060551A1 Cemented carbide body with extra tough behaviour |
| 08/05/1992 | EP0497663A1 Method of manufacturing corrosion resistant steel components and keeping their friction properties by nitriding and then oxidizing them |
| 08/02/1992 | WO1992013664A1 Method of recycling scrap metal |
| 08/02/1992 | CA2101758A1 Method of recycling scrap metal |
| 07/29/1992 | EP0496153A1 Method of manufacturing a colored metallic sheet |
| 07/29/1992 | EP0496137A1 Protective coating for non-oxide sintered fibers generated by in situ chemical reaction |
| 07/28/1992 | US5134011 Ferritic stainless steel coated with a blade oxide and its manufacturing process |
| 07/28/1992 | US5133813 Gas-carburizing process and apparatus |
| 07/23/1992 | WO1992012534A1 Apparatus for forming thin film |
| 07/22/1992 | EP0495454A2 Method of producing titanium aluminide having superior oxidation resistance |
| 07/21/1992 | US5131585 Copper solder, covering with organic material such as newspaper |
| 07/14/1992 | US5129959 Sulfur treatment of magnesium-contaminated fe-cr-al alloy for improved whisker growth |
| 07/14/1992 | CA1305022C Method for surface treatment and treating material therefor |
| 07/08/1992 | EP0494129A1 Direct nitridation process of metals having a low melting point |
| 07/08/1992 | EP0494059A1 Method of making an extremely fine-grained titanium-based carbonitride alloy |
| 07/08/1992 | CN1062577A Turbine blade of titanium-based alloy and production method therefor |
| 07/07/1992 | US5127967 Ion carburizing |
| 07/01/1992 | EP0493326A2 Substrate of improved melt sprayed surface morphology |
| 07/01/1992 | EP0493019A2 Process for modifying magnetic materials and magnetic materials therefrom |
| 07/01/1992 | EP0492524A2 Deposition method of anti-doming material of shadow mask |
| 06/24/1992 | EP0491279A1 Process for the treatment of surfaces of technical elements and hollow bodies designed for the containment of liquid or gaseous media, for reducing microbial growth on said surfaces |
| 06/24/1992 | EP0491075A1 Method for producing a turbine blade made of titanium based alloy |
| 06/23/1992 | US5124013 High ratio planetary drive system and method for vacuum chamber |
| 06/22/1992 | CA2058283A1 Magnetic materials and processes for their production |
| 06/17/1992 | EP0366784A4 Activated metal and method |
| 06/17/1992 | CN1062006A Technology for making push type broach of leather laminating machine with chrome steel |
| 06/16/1992 | US5122255 A device for adjusting oxygen concentration to a desired value ; accuracy |
| 06/16/1992 | US5122000 Rolling bearing |
| 06/11/1992 | WO1992009716A1 Wear resistant nuclear fuel assembly components |
| 06/10/1992 | CN1061806A Method of plating steel |
| 06/10/1992 | CN1016969B Automatical device for rapid heat chemical processing |
| 06/04/1992 | DE4038852A1 Turbine blade protection from erosion - by laser beam hardening with carburising gas |
| 06/04/1992 | DE4030279C1 Regenerating molten alkali metal cyanate - by continuous addn. of urea] or polymer or condensate that generates urea, feeding additive into containers in continuous conveyor |
| 06/03/1992 | EP0488497A2 Method of plating steel |
| 05/29/1992 | WO1992008820A1 Crankshaft and method of manufacturing thereof |
| 05/29/1992 | WO1992008819A1 Rotating shaft of motor and method of manufacture thereof |
| 05/29/1992 | WO1992008561A1 Making of pressure-molded product from aluminum powder |
| 05/29/1992 | WO1992008560A1 Method of making pressure-molded product from aluminum powder |
| 05/27/1992 | CN1061443A Process of low temperature and high concentration gaseous carburizing of rare-earth elements |
| 05/27/1992 | CN1061365A Method of producing plating or permeable strata on casts from inner layer of casting moulds |
| 05/26/1992 | US5116437 Method for stabilization treatment of ferromagnetic metal powder |
| 05/26/1992 | CA1301603C Method of annealing an aperture shadow mask for a color cathode ray tube |
| 05/20/1992 | EP0485686A1 Method of nitriding steel articles under pressure |
| 05/20/1992 | CN1016711B Hard alloy suitable for drilling rock and cutting ore |
| 05/19/1992 | US5114500 Nitriding furnace apparatus and method |
| 05/16/1992 | CA2055541A1 Process for nitriding steel workpieces under pressure |
| 05/14/1992 | WO1992008180A1 A control system for scheduling parts in a heat-treating process |
| 05/14/1992 | WO1992007464A1 Combined plasma and gamma radiation polymerization method for modifying surfaces |
| 05/14/1992 | DE4035348A1 Appts. for controlled gas nitriding of iron@ components - has heated preliminary chamber with lifting device, heaters and ammonia and water inlets |
| 05/13/1992 | EP0485314A1 Apparatus for low temperature plasma surface treatment of a metal plate or sheet |
| 05/13/1992 | EP0485152A1 Method of surface hardening titanium and titanium alloy substrates |
| 05/13/1992 | CN1061050A Repid fumigating cementation method for nitriding iron steel working pieces |
| 05/12/1992 | US5112030 Heat treat furnace for fluorinating steel material |
| 05/12/1992 | CA1300472C Carburized low silicon steel article and process |
| 05/06/1992 | EP0484109A2 Method of producing grain-oriented silicon steel sheet having very high magnetic flux density |
| 05/06/1992 | EP0483568A1 Method of producing brown coating layers on copper |
| 05/05/1992 | US5110854 Prevention of nitriding during heat treatment of steels |
| 04/30/1992 | DE4133214A1 Prodn. of permanent magnet of body centred structure - by introducing nitrogen into iron@-based alloy, used to form metastable non equilibrium state |
| 04/29/1992 | CN1060685A Method of nitriding steel and heat treat furnaces used therein |
| 04/25/1992 | CA2051566A1 Low temperature plasma oxidation process |
| 04/22/1992 | EP0481136A1 Method of nitriding steel |
| 04/22/1992 | EP0480924A1 Process for case-hardening roller bearing components of low-alloy nickel steel |
| 04/22/1992 | CN1060503A Hard austenitic stainless steel screw and method for manufacturing same |
| 04/15/1992 | EP0480725A2 Rotary carburizing furnace, method for purging carbon-enriched gas from the vicinity of a liquid seal in such a furnace, and apparatus for recirculating cleansed and cooled oil through an oil seal |
| 04/15/1992 | EP0480385A1 A fluidized bed apparatus for chemically treating workpieces |
| 04/15/1992 | EP0479886A1 Carburising treatment of a steel with reduction of the hydrogen content in the carburized layer |
| 04/15/1992 | CN1060315A Ornament and method for making same |
| 04/14/1992 | US5104132 Piston ring having nitriding layer and composite ni-b plating layer |
| 04/13/1992 | CA2052140A1 Fluidized bed apparatus for chemically treating workpieces |
| 04/11/1992 | CA2053078A1 Rotary furnace oil seal employing endothermic gas purge |
| 04/08/1992 | EP0479409A2 Austenitic stainless steel screw and a method for manufacturing the same |
| 04/07/1992 | US5102476 Process for nitrocarburizing components made from steel |
| 04/02/1992 | WO1992005295A1 Gas carburizing process and apparatus |
| 04/01/1992 | CN1016077B Quick gas carburizing process with activating catalysis and infiltration for steel pieces |
| 03/31/1992 | US5100483 Carburizing a surface, then partial removal by machining, provides carburized and uncarburized areas without masking |
| 03/24/1992 | US5098485 Method of making electrically insulating metallic oxides electrically conductive |
| 03/20/1992 | CA2051798A1 Device for surface treating a metal material plate by low temperature plasma |
| 03/17/1992 | US5096508 Surface modified copper alloys |
| 03/12/1992 | DE4040316A1 Bacteria growth prevention on plastic surfaces e.g. pipe interiors - by contacting media contg. bacteria using fluorine in partic. for crosslinked polyethylene surfaces |
| 03/11/1992 | CN1059375A Strong-malleabilizing treatment of hot-working die |
| 03/11/1992 | CN1059368A Method of preparing nitrogen-group controllable atmosphere used for metal thermal treatment |