| 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) |
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| 12/22/1994 | WO1994029491A1 Method and device for the heat treatment of workpieces |
| 12/20/1994 | US5374456 Surface potential control in plasma processing of materials |
| 12/13/1994 | US5372663 Powder processing of titanium aluminide having superior oxidation resistance |
| 12/13/1994 | US5372655 Method for the treatment of alloy steels and refractory metals |
| 12/13/1994 | US5372654 Regins containing carbon and nitrogen and boron |
| 12/13/1994 | US5372647 Apparatus for forming thin film |
| 12/13/1994 | CA2005823C Heat treatment process and apparatus for metal parts cementation, carbonitriding or heating before hardening |
| 12/08/1994 | DE4333940C1 Process for treating parts |
| 12/07/1994 | EP0627498A1 Ceramic-based substrate, and methods for producing same |
| 12/07/1994 | EP0627019A1 Process for the thermochemical-heat treatment of case-hardened steels |
| 12/01/1994 | DE4419035A1 Wälzlager Rolling bearings |
| 11/30/1994 | EP0626468A1 Process for carbonitriding steel |
| 11/30/1994 | EP0626467A1 Method of continuously carburizing steel strip |
| 11/30/1994 | CN1026801C Method of nitriding steel and heat treat furnaces used therein |
| 11/29/1994 | US5368938 Oxidation resistant carbon and method for making same |
| 11/24/1994 | WO1994027323A1 Preparation of nucleated silicon surfaces |
| 11/24/1994 | DE4415927A1 Surface treatment of components made of stainless steel for semiconductor fabrication equipment |
| 11/23/1994 | CN1095427A Multifunction ion bombarding furnace with double-deck glow |
| 11/23/1994 | CN1026687C Method for production of ceramic foam |
| 11/22/1994 | US5366598 Method of using a metal substrate of improved surface morphology |
| 11/22/1994 | US5366563 Hot argon cleaning and protective coating of components made of metal or alloy |
| 11/22/1994 | US5366345 With boride, carbide or nitride erosion resistant protective coating |
| 11/22/1994 | US5366205 Carburization installation |
| 11/17/1994 | EP0605444A4 Process and apparatus for surface hardening of refractory metal workpieces. |
| 11/10/1994 | WO1994025764A1 A screw |
| 11/10/1994 | CA2160793A1 A screw |
| 11/01/1994 | US5360202 Blackening Treating furnace for treating stainless steel strip surface |
| 10/26/1994 | EP0621349A1 Surface hardened platinum and palladium alloy articles and process for producing the same |
| 10/26/1994 | EP0427853B1 Metal oxidation apparatus and method |
| 10/26/1994 | EP0386257B1 Metal oxidation apparatus |
| 10/25/1994 | US5358575 Forming oxide film of ferrous, ferric oxide in presence of air and humidification exothermic gas, reducing ferric oxide to ferrous oxide |
| 10/18/1994 | US5356724 Excellent far-infrared radiating material |
| 10/18/1994 | CA1332546C Process for joining/coating using an atmosphere having a controlled oxidation capability |
| 10/13/1994 | DE4311447A1 Method and device for monitoring a variable which describes the carbon fraction of a nitrocarburisation furnace |
| 10/12/1994 | EP0619157A1 Gear making process |
| 10/05/1994 | EP0618304A1 Nitrided stainless steel |
| 10/05/1994 | EP0348496B1 Chemical vapor deposition of mixed oxide films |
| 10/05/1994 | CN1093124A Borax-graphite type granular boronizing agent |
| 10/04/1994 | US5352330 Process for producing nanometer-size structures on surfaces using electron beam induced chemistry through electron stimulated desorption |
| 10/04/1994 | US5352303 Rolling bearing |
| 10/04/1994 | US5352067 Milling cutter clamping wedge with hardened chip surface |
| 09/29/1994 | WO1994022005A1 Chemical switch and method for detection of chemical components |
| 09/29/1994 | CA2135405A1 Chemical switch and method for detection of chemical components |
| 09/28/1994 | EP0617139A1 Method for increasing oxidation resistance of Fe-Cr-Al alloy |
| 09/28/1994 | EP0556176B1 A control system for scheduling parts in a heat-treating process |
| 09/14/1994 | EP0614715A1 Wheel speed measuring gear and method of manufacturing the same |
| 09/14/1994 | CN1092112A Alloy with ultrafine crystal grains excellent in corrosion resistance |
| 09/13/1994 | US5346560 Nitriding, oxidation and wax coating parts |
| 09/07/1994 | CN1091780A Nitrided stainless steel products |
| 09/06/1994 | US5344502 Surface hardened 300 series stainless steel |
| 08/31/1994 | EP0612572A1 Method of making a mandrel comprising a drill section |
| 08/30/1994 | US5342455 In-situ generation of heat treating atmospheres using a mixture of non-cryogenically produced nitrogen and a hydrocarbon gas |
| 08/30/1994 | CA1331745C Process for improving corrosion resistance of metal products |
| 08/25/1994 | DE4305558A1 Process for the manufacture of wires which are especially suitable for cathodes of electron tubes |
| 08/25/1994 | DE4305375A1 Process for successive nitriding, polishing and oxidising of metal components in recyclable baths with identical cations |
| 08/23/1994 | US5340412 Method of fluorinated nitriding of austenitic stainless steel screw |
| 08/20/1994 | CA2089904A1 Method of making a mandrel comprising a drill section for a self-drilling bling rivet |
| 08/16/1994 | US5338616 Far-infrared emitter of high emissivity and corrosion resistance and method for the preparation thereof |
| 08/16/1994 | US5338377 Ball-and-roller bearing |
| 08/16/1994 | US5338374 Method of making copper-titanium nitride alloy |
| 08/09/1994 | US5336338 Bearing components and process for producing same |
| 08/03/1994 | EP0608421A1 Metallic material excellent in resistance to chemical solution and chemical solution treating device or parts thereof using said material |
| 08/02/1994 | US5334264 Provides hard surface layer with enchanced wear and corrosion resistance |
| 07/21/1994 | WO1994015749A1 Welding method and welded structure for forming passivated chromium oxide film on weld |
| 07/20/1994 | EP0606566A1 Method for preparing implant surfaces |
| 07/20/1994 | CN1089664A Metallized cutting tool material and carburizing tech. |
| 07/19/1994 | US5330935 Low temperature plasma oxidation process |
| 07/19/1994 | US5330813 Patch for preventing carburization, nitriding or oxidation, and method of preventing carburization, nitriding or oxidation |
| 07/19/1994 | US5330587 Shaft of laser nitride-hardened surface on titanium |
| 07/13/1994 | EP0605814A1 Diamond-like carbon films from a hydrocarbon helium plasma |
| 07/13/1994 | EP0605444A1 Process and apparatus for surface hardening of refractory metal workpieces. |
| 07/12/1994 | US5328524 Process for the surface oxidation of a part composed of passivatable metal, and fuel assembly elements composed of metal alloy covered with a protective oxide layer |
| 07/05/1994 | US5326584 Etching in radio frequency plasma, smoothness, intraocular lenses |
| 07/05/1994 | US5326362 Method of surface hardening orthopedic implant devices |
| 06/30/1994 | DE4340952A1 Cleaning process for tools, etc. prior to coating deposition |
| 06/29/1994 | EP0603864A2 Surface potential control in plasma processing of materials |
| 06/29/1994 | CN1025226C Sulphur, nitrogen, carbon common ionodialysis agent and techonology promoting by rare-earth |
| 06/29/1994 | CN1025225C Ion nitriding new tech. by rare-earth prompting nitridation |
| 06/28/1994 | US5324407 Substrate of improved plasma sprayed surface morphology and its use as an electrode in an electrolytic cell |
| 06/28/1994 | US5324366 Holding first part in carburizing chamber to form desired case depth, moving through cooling chamber to equalizing chamber, removing when temperature has equalized, moving second piece from carburizing chamber to cooling chamber |
| 06/28/1994 | US5324009 Apparatus for surface hardening of refractory metal workpieces |
| 06/24/1994 | CA2112178A1 Surface potential control in plasma processing of materials |
| 06/23/1994 | WO1994013841A1 Multipurpose atmosphere heat treatment apparatus |
| 06/22/1994 | EP0602347A1 Process for flushing and reconditioning transfer systems |
| 06/21/1994 | US5322642 Method of manufacturing semiconductors from homogeneous metal oxide powder |
| 06/16/1994 | DE4324740C1 Prodn of salt mixture for hardening of steel parts - by pressing together potassium cyanate, potassium carbonate and sodium carbonate. |
| 06/14/1994 | US5320689 With nitrogen and/or carbon |
| 06/14/1994 | US5320686 Method of producing integral, hard nitride layer on titanium/titanium alloy |
| 06/09/1994 | WO1994012679A1 Nitrided nickel-base article and ion-nitriding method |
| 06/08/1994 | CA2110732A1 Method for preparing implant surfaces |
| 06/01/1994 | DE4332912C1 Thermochemical surface layer treatment of titanium@ or titanium alloy - components in nitrogen@ gas at temp. below m.pt., giving increased surface hardness and consequently wear resistance |
| 05/31/1994 | US5316594 Hardening a zirconium alloy by oxidation to form zirconium oxide layer |
| 05/31/1994 | CA2014567C Method of producing laminated metal belt |
| 05/26/1994 | WO1994011901A1 Apparatus for forming low-temperature oxide films and method of forming low-temperature oxide films |
| 05/26/1994 | WO1994011118A1 Biocompatible, surface modified materials and method of making the same |
| 05/25/1994 | CN1024703C Turbine Blade of Titanium-based alloy and production method therefor |
| 05/25/1994 | CN1024691C Low-alloy steel to resist dew point corrosion of sulphuric acid |
| 05/24/1994 | US5314675 Process for direct nitriding of metals of low melting point |
| 05/24/1994 | US5314601 Electrodes of improved service life |
| 05/24/1994 | US5313982 Gas supply piping device for a process apparatus |