| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 12/16/1992 | CN1019510B Method for eliminating metallic residual stress corrosion |
| 12/16/1992 | CN1019509B Reinforcement process of tool and die steel with steel tipped structure |
| 12/15/1992 | CA1311542C Method of operating a machine for the stress relief of workpieces by vibration |
| 12/12/1992 | CA2070841A1 Loading device for supporting workpieces inside an oven |
| 12/10/1992 | WO1992021786A1 Process for forming passive film on stainless steel, and stainless steel and gas- and liquid-contacting part |
| 12/10/1992 | DE4218153A1 Precision heating appts. with removable hot plate - used e.g. for soldering or adhesive bonding of articles, has structure which contains heating elements and coolant passages |
| 12/09/1992 | CN2124239U Double laser beam heat treating apparatus for saw blade |
| 12/08/1992 | US5169515 Heat treatment of high temperature steels in presence of hydrogen gas, methane, hydrogen sulfide and steam; surface layer enriched in chromium oxide; inhibits coking |
| 12/02/1992 | EP0516502A1 Flooring plates for a wire conveyor in particular for cooling wire spires at the exit of a wire rolling mill |
| 12/02/1992 | EP0516250A2 Heat retaining means |
| 12/02/1992 | CN2123744U Pipe low-oxidizing energy-saving quenching furnce |
| 12/01/1992 | WO1992022178A1 Apparatus for and method of induction-hardening machine components |
| 12/01/1992 | US5167735 Prevention of formation of boron oxide white dust |
| 12/01/1992 | US5167733 Tough, hard golf club head |
| 12/01/1992 | CA2069186A1 Wire conveyor deck designed for cooling metal wire coils coming out of a mill train |
| 12/01/1992 | CA1311019C Oven for the thermomagnetic treatment of "o" coils |
| 12/01/1992 | CA1310891C Hardening a hollow |
| 11/25/1992 | CN1066472A Quick shining quenching oil composites |
| 11/19/1992 | EP0514325A2 Rotary drum transportation device |
| 11/19/1992 | EP0514324A2 Cooling apparatus |
| 11/19/1992 | EP0513478A2 Method for controlling crystal orientation of ferroelectric thin film |
| 11/18/1992 | CN1066293A Quick quenching oil compound |
| 11/18/1992 | CN1019137B Physical strengthening for low carbon martensitic stainless steel |
| 11/17/1992 | US5164957 Energy beam director apparatus |
| 11/14/1992 | WO1992021782A1 Rail vehicle wheel, process for tempering it and device for implementing the process |
| 11/12/1992 | WO1992019395A1 Method and device for cooling a section being rolled |
| 11/12/1992 | DE4111125C1 Method and appts. for accelerated cooling of long hollow components |
| 11/11/1992 | CN1019024B Laser heat-treatment for the shell of spherulitic iron steering gear of rare-earth ferrite |
| 11/10/1992 | CA1309807C Fatigue life of a component such as a bar |
| 11/05/1992 | DE4114124A1 Heat treating work piece of (non) alloyed steel - by applying gas tight layer to surface and heating |
| 11/04/1992 | CN1018931B Process and apparatus for obtaining homogeneous austenite structure |
| 11/03/1992 | USRE34119 Agitating metal in polyvinylpyrrolidone solution; washing to remove any film |
| 11/03/1992 | US5160556 Heat treatment of the flutes on corrugated rolls using a laser |
| 11/03/1992 | US5160380 Surrounding a catalyst retort positioned in a furnace by a shield; discharging |
| 11/03/1992 | US5160379 Fe-base soft magnetic alloy and method of producing same |
| 11/03/1992 | CA1309643C Process for heat treating a heat exchanger tube surrounded by a support plate |
| 10/29/1992 | WO1992018653A1 Process for remelting metal surfaces by laser |
| 10/29/1992 | DE4113458A1 Vacuum furnace for heat treatment of metal parts - has cover walls inside heating chamber to confine carriage area to minimal size thereby increasing cooling effects of blown gas |
| 10/28/1992 | EP0510718A2 High strength cold rolled steel sheet having excellent non-agin property at room temperature and suitable for drawing and method of producing the same |
| 10/28/1992 | EP0510495A1 Oxide-dispersion-strengthened heat-resistant sintered alloy |
| 10/28/1992 | CN2120113U Three-roll quench cooling and straightening device |
| 10/27/1992 | US5158625 Process and apparatus for heat treating articles while hardening in gaseous medium |
| 10/27/1992 | CA1309469C Scanning induction hardening |
| 10/22/1992 | DE4112772A1 Treatment furnace for components - with valves between flow channel and furnace controlling amt. of gas into certain areas of furnace |
| 10/21/1992 | EP0509407A1 Method for producing by continuous heat treatments oil-tempered steel wires for springs having high strength and high toughness |
| 10/21/1992 | CN2119427U Quenching tank equipment with magnetic field |
| 10/20/1992 | US5157232 Method and apparatus for inductively heating asymmetrically shaped workpieces |
| 10/20/1992 | US5157231 Apparatus for inductive hardening crankshafts with crank pins having a hollow ground radius |
| 10/20/1992 | US5156800 Installation for the thermal/treatment before rolling of thin slabs produced by continuous-casting |
| 10/20/1992 | US5156691 Process for improving the cold formability of heat-treatable steels |
| 10/20/1992 | CA1308999C Method for the manufacture of alloy railway rails |
| 10/14/1992 | CN1018656B Dry removal of salt and oil from oil-cooling hardened workpiece by heating salt-bath |
| 10/13/1992 | CA1308631C Process for the thermal treatment of metal workpieces in a vacuum |
| 10/07/1992 | EP0507131A1 Turbine blade protected against water droplets abrasion and method of manufacture |
| 10/06/1992 | CA1308339C Method for improving magnesium oxide steel coatings |
| 10/01/1992 | WO1992016334A1 Laser-workable combination type machine tool |
| 09/22/1992 | CA1307723C Process and apparatus for manufacturing a high strength rail |
| 09/16/1992 | EP0504095A2 Gas turbine engine component repair |
| 09/16/1992 | EP0222002B1 Alloy toughening method |
| 09/16/1992 | CN1064506A Low-alloy austenic-bainite tissue ultrahigh strength steel containing high c, si and mn, and heat treatment process thereof |
| 09/10/1992 | DE4107205A1 Rolled steel cooling and hydraulic transport appts. - has inlet funnel connected to upper and lower nozzle heads and symmetrical T-profiles which form compact cooling tube unit |
| 09/09/1992 | CN1018158B Automatic apparatus of forming and heat treatment of circular pieces |
| 09/03/1992 | WO1992014811A1 Metal wire consisting of a steel substrate with a cold hardened annealed martensitic structure, and a coating |
| 09/03/1992 | CA2099872A1 Metal wire consisting of a steel substrate with a cole hardened annealed martensitic structure, and a coating |
| 09/01/1992 | US5144109 Method for the steel edges of skis or the like |
| 09/01/1992 | US5143559 Carbon steel |
| 09/01/1992 | US5142778 Gas turbine engine component repair |
| 08/27/1992 | DE4130462C1 Curved surfaces partic. of cams on camshafts - which are hardened by remelting under an electron beam which is moved in two dimensions at high frequency |
| 08/26/1992 | EP0500252A1 Method and apparatus for processing ceramics |
| 08/25/1992 | US5141662 Heat transfer fluids comprising oxyalkylenated polyols |
| 08/22/1992 | CA2056268A1 Method and apparatus for processing ceramics |
| 08/20/1992 | WO1992013668A1 Method of irridiating coated workpieces with laser radiation, and a device for carrying out the method |
| 08/19/1992 | EP0411061A4 Fe-mn-al-c alloys and their treatment |
| 08/19/1992 | CN1017922B Salt-bath furnace with hidden and changeable electrodes |
| 08/18/1992 | US5140118 Metal tube induction annealing method and apparatus |
| 08/18/1992 | US5139584 Causing gaseous hydrocarbon flux to circulate in furnace in contact with surface, the flux having a variable, controlled composition |
| 08/18/1992 | CA1306507C Process for laser hardfacing drill bit cones having hard cutter inserts |
| 08/11/1992 | US5137616 Gas analysis system for furnaces and the like |
| 08/11/1992 | US5137586 Heating, cooling pattern; convection |
| 08/06/1992 | WO1992013109A1 Method and apparatus for cooling and quenching flat products moving along a path |
| 08/05/1992 | EP0497642A1 Method for manufacturing massive steel workpieces and workpieces thereby obtained |
| 08/05/1992 | CN1017725B Method for preparing nitrogen group protecting atmosphere by direct reaction |
| 08/04/1992 | CA1305832C Separating agent composition and method using same |
| 08/01/1992 | CA2060410A1 Process for the manufacturing of steel blocks or solid steel and parts obtained thereby |
| 07/29/1992 | CN1063124A Cleaning method for surface of stainless steel to get bright appearance |
| 07/28/1992 | US5134264 Device for the inductive heating of the inside of cylinder liners of reciprocating-piston engines for the purpose of hardening |
| 07/23/1992 | WO1992012267A1 Composition, bath and method for quenching metals |
| 07/23/1992 | DE4101383A1 Continuous annealing in hydrogen@-enriched protection gas - has measures to combat settling and accumulation of white dust |
| 07/22/1992 | EP0495151A1 Method of heat treating in vacuum furnaces |
| 07/21/1992 | US5132082 Process for reducing the oxygen potential of an inert processing atmosphere |
| 07/15/1992 | CN2110022U Portable laser heat treatment machine |
| 07/14/1992 | US5129965 Method of producing grain oriented silicon steel sheets each having a low watt loss and a mirror surface |
| 07/08/1992 | EP0167618B1 Coffin delivery system for metallurgical furnace |
| 07/08/1992 | CN1017351B Thermal treatment method for making two-phase steel with fine crystal grain |
| 07/07/1992 | US5127885 Endless metal belt with strengthened edges |
| 07/07/1992 | US5127827 Industrial furnace with improved heat transfer |
| 07/01/1992 | EP0493360A1 A continuous slab caster arrangement followed by a rolling mill |
| 07/01/1992 | CN1017260B Apparatus and method for deep cryogenic treatment of materils |
| 06/24/1992 | CN1062174A Temperature changing quenching technology for high chromium cast iron grinding ball |
| 06/24/1992 | CN1017182B Means of controlling gas flow in vacuum furnace |