| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 10/06/1988 | DE3709650A1 Device for rapid, oxide-free cooling of heat-treated pipes |
| 10/05/1988 | EP0285464A1 Heating device, in particular for heat-treating small diameter bent tubes, and the use of said device |
| 10/05/1988 | CN87107567A System for controlling temperature of running-conducter heating apparatus |
| 10/05/1988 | CN87100959B Welding method and apparatus for thin-plate structural parts with low-stress and deformationless |
| 10/04/1988 | US4775772 Hinged core device for running inductive heating |
| 10/04/1988 | US4775599 Cold rolled steel sheets having an improved press formability |
| 10/04/1988 | US4775430 Forming glass film on surface |
| 10/04/1988 | US4775429 Large diameter high strength rolled steel bar and a process for the production of the same |
| 09/28/1988 | EP0284233A1 Furnace for formation of black oxide film on the surface of thin metal sheet and method for formation of black oxide film on the surface of shadow mask material by use of said furnace |
| 09/28/1988 | EP0284118A2 Piston and piston ring |
| 09/28/1988 | EP0283869A2 Device to expose to a gas stream objects with flat surfaces in a position which can be traversed |
| 09/28/1988 | CN87105858A Disk spring material and its manufacturing process |
| 09/27/1988 | US4773949 Process for preventing transverse displacement of metal strip |
| 09/27/1988 | US4773111 Selectively hardened self drilling fasteners and process for making the same |
| 09/22/1988 | WO1988006940A1 Method of restoration of worn side surfaces of bushing-type parts |
| 09/22/1988 | DE3708050A1 Continuous casting installation with a rolling mill arranged on the outlet side |
| 09/21/1988 | EP0282860A2 Method and laying out for applying heat to the surface of a work piece |
| 09/21/1988 | EP0282822A1 Process for producing turbine wheels discs with locally raised internal stresses in the hub bore |
| 09/20/1988 | US4772771 Method for the production of high strength electric seam welded oil-well pipe |
| 09/20/1988 | US4772338 Process and apparatus for improvement of iron loss of electromagnetic steel sheet or amorphous material |
| 09/20/1988 | US4772336 Method of improving residual stress in circumferential weld zone |
| 09/14/1988 | CN88101145A Improved method of heat treating ferrous alloys |
| 09/13/1988 | US4770722 Methods for heat treatment of steel rods |
| 09/13/1988 | US4770721 Carbon, silicon, manganese, vanadium, niobium, molybdenum, iron |
| 09/07/1988 | WO1988006505A1 Improvements relating to welding |
| 09/07/1988 | WO1988006504A1 Method and apparatus for dull finish of roll with pulse laser |
| 09/07/1988 | EP0281249A1 Improved method of heat treating ferrous metals |
| 09/07/1988 | CN87100959A Welding method and apparatus for thin-plate structural parts with low-stress and deformationless |
| 09/06/1988 | US4769092 Variable cooling device for turbo engine wall parts |
| 09/06/1988 | US4769089 Method of annealing an aperture shadow mask for a color cathode ray tube |
| 09/06/1988 | US4769088 Process for producing hot-rolled steel sheet having high r value |
| 09/06/1988 | CA1241583A1 Production of a base steel sheet to be surface- treated which is to produce no stretcher strain |
| 09/06/1988 | CA1241507A1 Barium or chromium additives to magnesium oxide coating slurry |
| 08/31/1988 | EP0280671A2 Surface-marking process for a metal-rolling roll |
| 08/31/1988 | EP0280596A1 Ram device for a laterally charged furnace |
| 08/30/1988 | US4767493 Molds, spacings, controlling, thermal properties |
| 08/30/1988 | US4767475 Wear resistant rails having capability of preventing propagation of unstable rupture |
| 08/30/1988 | US4767473 Method for improving the dynamic strength of wheel disks of vehicle wheels made of heat-treatable aluminum alloys |
| 08/30/1988 | US4767472 Method for the treatment of steel wires |
| 08/30/1988 | CA1241258A1 Method of drape drawing a shadow mask for a colour display tube and device for such a method |
| 08/16/1988 | US4764109 Heat treating, curing or stress relieving furnace |
| 08/16/1988 | US4763880 Rotary hearth multi-chamber, multi-purpose furnace system |
| 08/16/1988 | CA1240593A1 Process for producing, by continuous annealing, soft blackplate for surface treatment |
| 08/16/1988 | CA1240592A1 Processing for cube-on-edge oriented silicon steel |
| 08/16/1988 | CA1240507A1 Device for the uniform application of gas on a plane surface |
| 08/10/1988 | EP0277757A2 High strength high toughness steel |
| 08/10/1988 | CN88100515A High temp. character of improved selected chromium-molybdenum improved alloy and method for soldable ability |
| 08/09/1988 | US4762577 9 Chromium- 1 molybdenum steel alloy having superior high temperature properties and weldability, a method for preparing same and articles fabricated therefrom |
| 08/03/1988 | EP0277109A1 Apparatus for heat-treating (in particular annealing) a continuously moving metal wire |
| 08/03/1988 | EP0276461A2 Method for processing large cast iron dies, particularly for vehicle sheet-metal pressing, and the apparatus for its implementation |
| 08/03/1988 | EP0276457A2 A method for producing non-aging hot-dip galvanized steel strip |
| 08/03/1988 | CN88100178A Combined technology of chemical heat treatment for the deformation of a precision forging gear |
| 08/02/1988 | US4761530 Heat treatment of a running length of coated metal strip |
| 08/02/1988 | US4761192 Camshafts for automobiles |
| 08/02/1988 | US4761117 Turbine rotor and a method of producing the same |
| 08/02/1988 | US4760995 Continuously treating line for steel bands having a heating furnace by directly flaming |
| 08/02/1988 | CA1239789A1 Cooling apparatus for strip metal |
| 07/27/1988 | EP0275864A1 Apparatus for thermally treating a continuously moving metal wire |
| 07/27/1988 | EP0275529A1 Method for preparing large cast iron dies, particularly for vehicle-sheet metal pressing, and the apparatus for its implementation |
| 07/26/1988 | US4759808 Method for hardening cam lobes on a camshaft |
| 07/26/1988 | US4759807 Method for producing non-aging hot-dip galvanized steel strip |
| 07/26/1988 | US4759806 Patenting the wire by transformation in a transformation temperature and of drawing steel wire to smaller diameter |
| 07/26/1988 | CA1239570A1 Method of controlling the temperature of steel strip in the cooling zone of a continuous annealing furnace |
| 07/26/1988 | CA1239568A1 Erw oil-well pipe and process for producing same |
| 07/20/1988 | EP0275220A2 Apparatus for internally and externally quenching pipes |
| 07/19/1988 | US4758705 Method and apparatus for texturing a roller |
| 07/19/1988 | US4758154 Fluidized-bed plant |
| 07/13/1988 | EP0274335A2 Induction for the inductive reheating of metallurgical products |
| 07/13/1988 | EP0274206A2 Heating stock in a heating chamber |
| 07/13/1988 | CN87107467A Lazer heat treatment technique of internal combustion engine cylinder bore |
| 07/12/1988 | US4757170 Method and apparatus for induction heating gears and similar workpieces |
| 07/12/1988 | US4756373 Rock drilling bit and a method of producing the same |
| 07/12/1988 | CA1239060A1 Method and apparatus for vacuum deposition plating |
| 07/06/1988 | EP0273571A2 Separating-agents composition and method using same |
| 07/06/1988 | CN87101163A Thermal treating of metal wires |
| 07/05/1988 | US4755237 Scanning portion of tool base with intense radiation beam to form cutting edge, transferring heat to tool to melt material adjacent cutting edge, rapidly cooling to form wear resistant noncrystalline metal layer |
| 07/05/1988 | US4755236 Annealing in closed controlled environment |
| 07/05/1988 | US4754635 Device for drape drawing a shadow mask for a color display tube |
| 07/05/1988 | CA1238802A1 Al-killed cold-rolled steel sheet with excellent demagnetization characteristics and process for producing the same, and shadow mask and color television using the same |
| 06/29/1988 | EP0272710A1 Feed-through element for application in a vacuum apparatus and vacuum apparatus provided with one or more of such feed-through elements |
| 06/29/1988 | CN87106956A Apparatus for preheating and/or annealling metallic continuous casting billet, especially for wire with larger cross-section |
| 06/28/1988 | US4754124 Resistance heaters |
| 06/28/1988 | US4753687 Easy removal of excess from silicon steels after high temperature annealing |
| 06/28/1988 | US4753379 Method and apparatus for regulating the length of workpieces |
| 06/22/1988 | EP0271614A1 Electromagnetic induction heating apparatus |
| 06/21/1988 | US4752217 Wire coating oven including wire cooling apparatus |
| 06/21/1988 | US4752214 Oven wall straightener |
| 06/21/1988 | CA1238183A1 High temperature fluidized bed furnace |
| 06/21/1988 | CA1238182A1 Steel strip heating furnace |
| 06/15/1988 | EP0271469A2 Process for producing microperforations in a rolling mill cylinder surface |
| 06/15/1988 | EP0271129A1 Line to cool wound bundles of rolled wire and rod |
| 06/15/1988 | EP0270860A1 Method and apparatus for the thermal treatment of steel wire |
| 06/14/1988 | US4751360 Apparatus for the continuous induction heating of metallic strip |
| 06/14/1988 | US4750715 Apparatus for cooling steel belt |
| 06/09/1988 | DE3702784C1 Method for hardening steel tubes |
| 06/08/1988 | EP0270288A1 Heating of a metallic strand |
| 06/08/1988 | CN87106396A Quenching method and device for steel wire with copper-cooling instead of lead bath |
| 06/07/1988 | US4749834 Method and apparatus of hardening gears by induction heating |
| 06/07/1988 | US4749419 Method for heat treating rail |
| 06/07/1988 | CA1237642A1 Method of manufacturing austenitic stainless steel plates |