| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 12/01/2010 | CN101900157A Special anti-theft screws for anti-theft wire of seal cover at bottom section of lamp post column |
| 12/01/2010 | CN101899630A Quenching steel plate for engineering machinery with 900MPa-grade yield strength and production method thereof |
| 12/01/2010 | CN101899629A Abrasion-resistant alloy cast steel and manufacturing equipment thereof |
| 12/01/2010 | CN101899628A Abrasion-resistant alloy cast steel and manufacturing method thereof |
| 12/01/2010 | CN101899627A Abrasion-resistant alloy cast steel and smelting and heat treatment processes |
| 12/01/2010 | CN101899625A Ferrite stainless steel and manufacturing method thereof |
| 12/01/2010 | CN101899622A Alloy steel for high-pressure container and preparation method thereof |
| 12/01/2010 | CN101899620A Production process of wear-resistant alloy steel lining board |
| 12/01/2010 | CN101899561A 齿条淬火夹具 Quenching rack fixture |
| 12/01/2010 | CN101899559A Manufacturing method of high strength bumper for automobile side-door |
| 12/01/2010 | CN101899558A Heat treatment process of automotive stabilizer bar |
| 12/01/2010 | CN101899553A Heat treatment technology and device of wear-resistant alloy cast steel |
| 12/01/2010 | CN101899552A Heat treatment equipment of antifriction alloy cast steel |
| 12/01/2010 | CN101899551A Heat treatment technology of wear-resistant alloy cast steel |
| 12/01/2010 | CN101899550A Heat energy recycling system of quenching oil |
| 12/01/2010 | CN101602078B Method for manufacturing section steel with high strength and high toughness by using hot-rolling steel plate |
| 12/01/2010 | CN101574706B Sub-half high-speed steel roller and heat treatment process thereof |
| 12/01/2010 | CN101503778B Preparation of giant magnetostriction alloy wire |
| 12/01/2010 | CN101397635B 12Cr2Mo1R thick steel plate for equipment contacting hydrogen and method for producing the same |
| 12/01/2010 | CN101391342B Metal-bar automatic quench tempering butt-welding machine |
| 12/01/2010 | CN101381842B High chromium content ferrite stainless steel and manufacturing method thereof |
| 12/01/2010 | CN101348851B Method for producing common oriented electrical steel by low temperature casting blank heating |
| 12/01/2010 | CN101343716B Low alloy cast steel |
| 12/01/2010 | CN101298646B Aluminum-niobium composite iron-chromium-cobalt permanent magnetic alloy and deformation processing technique |
| 12/01/2010 | CN101265557B Rotary compressor roller material and method for producing roller |
| 11/30/2010 | US7842230 Continuous carburizing furnace |
| 11/30/2010 | CA2460493C Device for quenching and tempering long-length rolling stock |
| 11/25/2010 | WO2010134436A1 Continuous annealing furnace |
| 11/25/2010 | WO2010133666A1 Cooling tank for rails |
| 11/25/2010 | WO2010132907A1 Guide element, shifting element for a motor vehicle transmission, method for producing a joint, method for treating the surface of a steel component, and steel component |
| 11/25/2010 | WO2010089056A3 Method and system for heat treating sheet metal |
| 11/25/2010 | US20100296764 Rolling Element or Ring Formed From a Bearing Steel |
| 11/25/2010 | US20100294352 Metal patterning for electrically conductive structures based on alloy formation |
| 11/24/2010 | EP2253728A1 Rolling component and manufacturing method thereof |
| 11/24/2010 | EP2253394A1 Cooling system and cooling method of rolling steel |
| 11/24/2010 | EP2252717A1 Steel, process for the manufacture of a steel blank and process for the manufacture of a component of the steel |
| 11/24/2010 | EP1530651B1 Method and apparatus for simplified production of heat treatable aluminum alloy castings with artificial self-aging |
| 11/24/2010 | CN201648470U Gear ring nitrogen-protecting continuous normalizing furnace |
| 11/24/2010 | CN201648465U Clamp recirculation type leaf spring quenching equipment |
| 11/24/2010 | CN201648463U Magnesium oxide dedusting system of oriented silicon steel hot-drawing and annealing machine |
| 11/24/2010 | CN201648461U Circulating water temperature controlling system |
| 11/24/2010 | CN201648460U Special fixture of quenching press |
| 11/24/2010 | CN201648459U Hole type die quenching non-uniform cooling device |
| 11/24/2010 | CN201648458U Oil-quenching tank |
| 11/24/2010 | CN201648457U Furnace panel of hardening furnace |
| 11/24/2010 | CN201648456U Large continuous mesh-belt type quenching furnace adopting gas for heating |
| 11/24/2010 | CN201648455U Continuous high-speed steel protective atmosphere hardening furnace |
| 11/24/2010 | CN201648454U Annealing cycle shortening device for well-type annealing furnace |
| 11/24/2010 | CN201648453U Heat insulation protective device used for bottom of tempering furnace |
| 11/24/2010 | CN201648452U Laser wideband thermal processing scanner |
| 11/24/2010 | CN201648451U Quenching burner for hole heating |
| 11/24/2010 | CN201644794U Sintering and tempering feed box for NdFeB material preparation processes |
| 11/24/2010 | CN1611628B Rolling bearing part and method for manufacturing the same |
| 11/24/2010 | CN101894645A Nano-crystal composite NdFeB permanent magnet alloy and heating processing technology for improving magnetic performance thereof |
| 11/24/2010 | CN101894644A Anisotropic nanocrystalline compound NdFeB permanent magnet alloy and preparation method thereof |
| 11/24/2010 | CN101892487A Corrosion resistance processing method for composite structure layer formed on surface of cold-rolling mild steel plate |
| 11/24/2010 | CN101892449A Method of using nano-sized iron oxide to induce surface of carbon steel through nitrogen alloying |
| 11/24/2010 | CN101892442A Steel for nuclear power pressure equipment with high toughness, high ductility and low irradiation embrittlement and making method thereof |
| 11/24/2010 | CN101892437A Good-mirror polishability low-magnetic austenitic stainless steel and manufacturing method thereof |
| 11/24/2010 | CN101892429A High-toughness cold-work mould steel and preparation method thereof |
| 11/24/2010 | CN101892427A High manganese steel and manufacturing method |
| 11/24/2010 | CN101892426A Medium and high-carbon Bainite steel and preparation method thereof |
| 11/24/2010 | CN101892422A Steel for petroleum casing pipe, high-frequency electric resistance welding petroleum casing pipe and methods for manufacturing steel for petroleum casing pipe and high-frequency electric resistance welding petroleum casing pipe |
| 11/24/2010 | CN101892376A Thermal treatment process for crystallizing nano-composite NdFeB permanent magnetic alloy |
| 11/24/2010 | CN101892375A Method for inspecting surface oxidation degree of annealed stainless steel band |
| 11/24/2010 | CN101892371A Cold draw production method of wire core 4J42 alloy for covering copper |
| 11/24/2010 | CN101892368A Vacuum heat treatment process |
| 11/24/2010 | CN101892367A Air supplying method for protective atmospheres of different hydrogen concentration sections |
| 11/24/2010 | CN101892366A Low oxygen content and low nitrogen consumption control system and method for radiant tube-heated non-oxidation roller hearth furnace |
| 11/24/2010 | CN101892365A Furnace pressure stabilizing device for heat treatment furnace in protective atmosphere |
| 11/24/2010 | CN101892364A High-frequency surface quenching machine |
| 11/24/2010 | CN101892363A Quenching agent |
| 11/24/2010 | CN101892362A Hardening and tempering method in pump body manufacturing |
| 11/24/2010 | CN101892361A Method for preparing nano structure on copper chromium alloy surface |
| 11/24/2010 | CN101892360A Novel heated-air circulation tempering furnace |
| 11/24/2010 | CN101890626A Method for connecting super-thick X80 steel pipes |
| 11/24/2010 | CN101890483A Method for preparing special alloy thin-walled member |
| 11/24/2010 | CN101492762B Mould surface induction quenching machine tool |
| 11/24/2010 | CN101397637B 13Cr high anti-carbon dioxide and trace hydrogen sulfide corrosion tubing and casing steel and method for producing the same |
| 11/24/2010 | CN101070578B High-chromium cast-iron boiler atomizing piece and manufacturing method |
| 11/23/2010 | US7837810 Post weld heat treatment for chemically stabilized austenitic stainless steel |
| 11/18/2010 | WO2010130936A1 Method of strengthening a mechanical part made of a ferrous alloy |
| 11/18/2010 | US20100288402 Method and apparatus for producing sheet metal components |
| 11/18/2010 | US20100288399 Device and method for remelting metallic surfaces |
| 11/17/2010 | CN201634733U Synchronous strong convection cooling device for monolith in circular protective atmosphere |
| 11/17/2010 | CN201634732U Frequency-changing electromagnetic pulse de-stressing device |
| 11/17/2010 | CN201634731U Automatic launching mechanism of box type steel tube quenching and tempering furnace |
| 11/17/2010 | CN201634727U Sealing device for port of high-frequency bright annealing furnace |
| 11/17/2010 | CN201634726U Carrier beam composite control hydraulic device |
| 11/17/2010 | CN201634724U Heat-preserving cover of large forgings for slow cooling after forging |
| 11/17/2010 | CN201634723U Ordinary pressure nitrogen and water mixed gas injection and quenching device |
| 11/17/2010 | CN201634722U Fork-type loading and unloading manipulator device for large annular heat-treatment furnace |
| 11/17/2010 | CN201634721U Thermal treatment quenching oil recovery device |
| 11/17/2010 | CN201634720U Sizing device for thermal treatment quenching |
| 11/17/2010 | CN201634719U Normalizing device |
| 11/17/2010 | CN201634718U High-frequency induction ring for cam quenching |
| 11/17/2010 | CN201634717U Cast steel annealing drying furnace |
| 11/17/2010 | CN1908202B Soaking heat treatment technique for automobile steering knuckle after forging |
| 11/17/2010 | CN1875122B Stainless steel wire, spring, and method for producing spring |
| 11/17/2010 | CN101888723A Control method of sensing heat-transmission temperature and temperature control system thereof |