| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 12/17/2008 | CN201165539Y Cooler for angle steel continuous heat treatment |
| 12/17/2008 | CN101326302A Carbo-nitriding process, method for manufacturing machine part, and machine part |
| 12/17/2008 | CN101326300A Hot-dip zinc-coated steel sheets and process for production thereof |
| 12/17/2008 | CN101323902A Full size ring type parts quenching equipment |
| 12/17/2008 | CN101323899A Quenching machine tool without soft belt |
| 12/17/2008 | CN101323055A Restrike nozzle body welding process |
| 12/17/2008 | CN101322482A Forced-feeding method for improving developing quality of goose liver, used feed and forced-feeding machine |
| 12/17/2008 | CN100443618C Ball grinding machine lining board and manufacturing method thereof |
| 12/17/2008 | CN100443617C Pealite like thermal treating steel rail and producing method thereof |
| 12/17/2008 | CN100443616C Fast microwave crystallizing process for preparing nanometer crystalline iron-base soft magnetic alloy |
| 12/17/2008 | CN100443615C Weldable high-strength microalloyed medium carbon steel oil well pipe and its making process |
| 12/17/2008 | CN100443600C Hot rolled strip cooling device with coolant header |
| 12/17/2008 | CN100443599C Heat treatment method for high strength heavy type steel rail head |
| 12/17/2008 | CN100443598C Heat treatment system for high strength heavy type steel rail head |
| 12/17/2008 | CN100443242C Welding and deformation control method of large scale bulb tubular set and base |
| 12/16/2008 | US7465361 Method for producing grain oriented magnetic steel sheet and grain oriented magnetic steel sheet |
| 12/16/2008 | CA2206925C Constant current needle annealing |
| 12/11/2008 | WO2008150205A1 A roller hearth furnace and roller therefore |
| 12/11/2008 | US20080302452 Process for Manufacturing Cold-Formed Precision Steel Pipes |
| 12/11/2008 | US20080302450 Object Comprising a Steel Part of Metal Construction Consisting of an Area Welded by a High Power Density Beam and Exhibiting an Excellent Toughness in a Molten Area, Method for Producing Said Object |
| 12/11/2008 | US20080302281 Surface Treatment of Metallic Articles in an Atmospheric Furnace |
| 12/10/2008 | EP2000554A1 High-strength steel sheet having excellent workability |
| 12/10/2008 | EP2000552A2 Hot-rolled ultrasoft high-carbon steel plate and process for production thereof |
| 12/10/2008 | EP1899490B1 Austenitic stainless steel strip having a bright surface finish and excellent mechanical properties |
| 12/10/2008 | CN201162031Y Hot dip galvanized iron wire annealing oven |
| 12/10/2008 | CN201162030Y Radiant tube heating apparatus |
| 12/10/2008 | CN201162029Y Novel strip steel support roller |
| 12/10/2008 | CN201162028Y Fore-warmer tank |
| 12/10/2008 | CN201162027Y Heat treating equipment for metal member bar |
| 12/10/2008 | CN201162026Y Circular high speed high pressure gas cooling type saw band quenching cooling unit |
| 12/10/2008 | CN201162024Y Induction heating safety appliance |
| 12/10/2008 | CN101322002A Method and apparatus for heating steel components in a continuous furnace |
| 12/10/2008 | CN101321885A Heat-treatment steel for high-strength spring |
| 12/10/2008 | CN101321884A Heat-treatment steel for high-strength spring |
| 12/10/2008 | CN101321883A Non-directional electromagnetic steel plate and manufacturing method thereof |
| 12/10/2008 | CN101319273A Thermal treatment grooving pressure disk |
| 12/10/2008 | CN101318286A Method of manufacturing penetration type side direction composite board band and mould hot-press arrangement thereof |
| 12/10/2008 | CN100441721C Ferritic cr-containing steel |
| 12/10/2008 | CN100441706C High-frequency bearing surface quenching method and tool |
| 12/10/2008 | CN100441705C Heat-treatment method for storage tank body of large-scale total pressure type LPG carrying vessel |
| 12/10/2008 | CN100441704C Continuous intensification method of 0Cr17Ni7A1 material after timing heat treatment |
| 12/09/2008 | US7462251 Method for making an abrasion-resistant steel plate |
| 12/09/2008 | US7462250 High strength, high toughness, high carbon steel wire rod and method of production of same |
| 12/09/2008 | CA2281314C Super fine granular steel pipe and method for producing the same |
| 12/04/2008 | WO2008146904A1 Remaining stress improving apparatus for tube and method for adjusting the remaining stress improving apparatus |
| 12/04/2008 | WO2008145871A2 Process for manufacturing cold-rolled and annealed steel sheets with very high strength, and sheets thus produced |
| 12/04/2008 | WO2008145327A1 Process for producing a locally hardened profile component, locally hardened profile component and use of a locally hardened profile component |
| 12/04/2008 | WO2008127439A3 Gear material for an enhanced rotorcraft drive system |
| 12/04/2008 | US20080298734 Shell Type Needle Roller Bearing, Support Structure for Supporting a Compressor Spindle, and Support Structure for Supporting Driving Portion of a Piston Pump |
| 12/04/2008 | US20080295926 Thermal Process to Improve Metallurgical Characteristics |
| 12/04/2008 | US20080295924 Steel Sheet Excellent in Workability and Method for Producing the Same |
| 12/04/2008 | CA2686940A1 Process for manufacturing cold-rolled and annealed steel sheets with very high strength, and sheets thus produced |
| 12/03/2008 | EP1997114A1 Compositions of matter: system ii |
| 12/03/2008 | EP1996738A2 Production system of weldable and stainless tubular structures with high mechanical strength and product obtained therefrom |
| 12/03/2008 | EP1900255B1 Induction furnace for treating electrically conductive strips, sheets, plates, and field winding therefor |
| 12/03/2008 | EP1664356A4 Post weld heat treatment for chemically stabilized austenitic stainless steel |
| 12/03/2008 | CN201160246Y Novel electric motor base plate bracket |
| 12/03/2008 | CN201158687Y Strip steel stabilizing device of annealing oven |
| 12/03/2008 | CN201158686Y Heat accumulation type steel wire heat treatment furnace |
| 12/03/2008 | CN201158685Y Refrigeration bench frame with roller for automatic lift plate |
| 12/03/2008 | CN201158684Y Steel roll rim heating mechanism |
| 12/03/2008 | CN201158683Y Integration device for steel pipe welded seam thermal treatment |
| 12/03/2008 | CN201157843Y System for producing wide strip by thin slab casting and rolling |
| 12/03/2008 | CN101314836A Austenite stainless steel plate for pressboard |
| 12/03/2008 | CN101314835A Low-cost non-magnetoelectricity roll body and manufacturing process thereof |
| 12/03/2008 | CN101314813A Toothed wheel rotation-heating apparatus |
| 12/03/2008 | CN101314812A Smithing exhaust heat quenching process for caterpillar track node with node pitch more than 200mm |
| 12/03/2008 | CN101314811A Method for using blast furnace gas to heat of large-scale walking beam type plate blank heating furnace |
| 12/03/2008 | CN101314810A Residual heat utilization and pre-heating temperature elevation system of heat treatment furnace |
| 12/03/2008 | CN101314202A Method for producing wind-electricity principal axis with gathering stock full fibre upset forging |
| 12/03/2008 | CN100439577C Method and device for sharpening and strengthening fiber beating combing element |
| 12/03/2008 | CN100439550C Long-life alloy die-casting module and manufacturing method thereof |
| 12/03/2008 | CN100439549C Martensitic stainless steel pipe and method for producing the same |
| 12/03/2008 | CN100439544C High strength cold rolled steel sheet and method for manufacturing the same |
| 12/03/2008 | CN100439542C High strength steel sheet and method for manufacturing same |
| 12/03/2008 | CN100439518C HF quenching technology for piston ring groove |
| 12/02/2008 | US7459041 Method for making an abrasion-resistant steel plate |
| 12/02/2008 | US7459040 Method for making a steel article with carbides already in the steel and no deformation used in the process |
| 12/02/2008 | US7459037 Method of manufacturing reactor member by using the surface treatment method |
| 12/02/2008 | US7459034 Steel hoop made from a martensitic steel strip |
| 12/02/2008 | US7458426 Embedding a steel pipe in an excavated well, excavating the underground on the front end of the embedded steel pipe to deepen the well, inserting a second steel pipe; expanding the second steel pipe radially by a tool inserted therein to increase the diameter, excavating, repeating |
| 12/02/2008 | CA2361014C Blank for gunbarrel, method for producing said gunbarrel and gunbarrel |
| 11/27/2008 | WO2008143031A1 Rolling member, rolling bearing and process for manufaturing rolling member |
| 11/27/2008 | WO2008055477A3 Method for the production of a rolling bearing ring, and rolling bearing ring |
| 11/27/2008 | US20080289729 Diffusion-hardened medical implant |
| 11/27/2008 | DE102007024091A1 Metallic construction unit tempering and joining method, involves heating of edge zone of construction unit and joining with another construction unit |
| 11/26/2008 | EP1995340A1 Cold-rolled steel sheet, process for producing the same, and cell and process for producing the same |
| 11/26/2008 | EP1995333A1 Metal heat treating methods and devices |
| 11/26/2008 | EP1994798A2 Transverse flux electric inductors |
| 11/26/2008 | EP1994188A2 Method and device for cooling and stabilizing strip in a continuous line |
| 11/26/2008 | EP1994187A2 Method of producing high-strength metal tubular bar for vehicle stabilizer possessing improved cold formability |
| 11/26/2008 | EP1994186A2 Spray quench systems for heat treated metal products |
| 11/26/2008 | EP1861243B1 Roller rod |
| 11/26/2008 | EP1348771B1 High strength hot rolled steel plate excellent in enlargeability and ductility and method for production thereof |
| 11/26/2008 | EP1296843B1 Vehicle structural beam and method of manufacture |
| 11/26/2008 | CN201154981Y Annealing furnace heating apparatus |
| 11/26/2008 | CN201154980Y Copper wire drying system of annealing furnace |
| 11/26/2008 | CN201154979Y Vapour protection arrangement for annealing furnace |
| 11/26/2008 | CN201154974Y Apparatus for rapidly and uniformly cooling roller |
| 11/26/2008 | CN201154852Y Step feed apparatus of heat treatment pipeline for metal tubes |