| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
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| 04/03/2008 | US20080078478 Method of manufacturing martensitic stainless steel |
| 04/02/2008 | EP1905862A2 Vacuum carburization processing method and vacuum carburization processing apparatus |
| 04/02/2008 | EP1905852A2 Varying fluence as a function of thickness during laser shock peening |
| 04/02/2008 | EP1905849A1 Process for producing bearing device for wheel |
| 04/02/2008 | EP1716267A4 Method for carburizing steel components |
| 04/02/2008 | EP1365037B1 High strength steel sheet having excellent formability and method for production thereof |
| 04/02/2008 | CN201043185Y Side discharge channel switching mechanism |
| 04/02/2008 | CN101153401A Vacuum carburization processing method and vacuum carburization processing apparatus |
| 04/02/2008 | CN101153377A Leveler roll and manufacturing process thereof |
| 04/02/2008 | CN101153376A Method for manufacturing high-vanadium, high-cobalt high speed steel |
| 04/02/2008 | CN101153354A Waste gas pre-heating type glory hole |
| 04/02/2008 | CN101153353A Application of laser heat treatment technology in cylinder cover surface |
| 04/02/2008 | CN101152706A Bainitic steel ball and production technique |
| 04/02/2008 | CN101152655A Steel blank heating device |
| 04/02/2008 | CN100378232C Laser beam hardening tool |
| 04/01/2008 | CA2345814C Iron-rich magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic |
| 03/27/2008 | WO2008035528A1 Works for enameling and enameled products |
| 03/27/2008 | WO2008035524A1 Method of restricted quenching for annular member |
| 03/27/2008 | WO2007092139A8 Integrated reformer and batch annealing processes and apparatus therefor |
| 03/27/2008 | US20080073002 Carburization treatment is conducted simultaneously with an operation of supplying a hydrocarbon gas and an oxidative gas into furnace kept under reduced pressure; process control; high carbon potentials; automatically supplys the hydrocarbon gas and/or oxidative gas into furnace and controls temperature |
| 03/27/2008 | US20080073001 Vacuum carburization processing method and vacuum carburization processing apparatus |
| 03/27/2008 | DE102006045004A1 Method for inductive hardening of a rotational symmetrical component comprises impinging the component with a pre-torsion in the direction which is opposite to the direction of the main torsion during heating |
| 03/26/2008 | EP1902147A1 Equipment and method for hardening treatment of metallic parts |
| 03/26/2008 | CN201040764Y S roller threading arc guiding plate |
| 03/26/2008 | CN101148769A Method for directly growing nano-crystal chromium nitride film on steel products |
| 03/26/2008 | CN101148742A Ultra-fine ferrite crystal grain low-alloy steel and manufacturing method thereof |
| 03/26/2008 | CN101148741A Thin belt continuous casting austenitic stainless steel belt and manufacturing method thereof |
| 03/26/2008 | CN101148738A Strengthened ferrite series heat-resistant steel with nano precipitated phase and manufacturing method thereof |
| 03/26/2008 | CN101148736A Steel rail and producing method thereof |
| 03/26/2008 | CN101148694A Copper/iron alloy composite wire material and anneal manufacturing method thereof |
| 03/26/2008 | CN101148693A Copper/aluminum composite wire material and anneal manufacturing method thereof |
| 03/26/2008 | CN101148692A Copper/steel composite wire material and anneal manufacturing method thereof |
| 03/26/2008 | CN101148691A Steel/steel composite wire material and anneal manufacturing method thereof |
| 03/26/2008 | CN101148690A Saw blade basal body pressurization backfire arrangement |
| 03/26/2008 | CN101148689A Heat treating method for large-scale device integral anneal |
| 03/26/2008 | CN101148688A Surface hardening treatment method for large-power low-speed diesel engine piston bar |
| 03/26/2008 | CN101148093A Method for manufacturing metal lining composite ring gas bottle |
| 03/26/2008 | CN101148012A Method for processing hollow sucker rod |
| 03/26/2008 | CN101147951A Rolling preparation method for thick-walled and thin-bottomed basin parts |
| 03/26/2008 | CN101147921A Method for manufacturing cold rolled hard steel plate produced by continuous annealing process |
| 03/26/2008 | CN100376708C Heat-resisting steel, heat treatment method for heat-resisting steel and high-temperature steam turbine rotor |
| 03/26/2008 | CN100376695C Method for making quench hardening layer of cold roll barrel |
| 03/25/2008 | US7347927 Oil composition for heat treatment |
| 03/25/2008 | CA2603738A1 Method for producing strain induced austenite |
| 03/20/2008 | WO2008031457A1 Method for the production of tough-at-subzero steels |
| 03/20/2008 | WO2008010746A3 Method for laser and light heat treatment of metal materials at a controllable temperature changes |
| 03/20/2008 | WO2007109546A3 Method and apparatus for the uniform resistance heating of articles |
| 03/20/2008 | US20080067220 Welded component |
| 03/20/2008 | US20080066834 Direct-Fired Furnace Utilizing an Inert Gas to Protect Products Being Thermally Treated in the Furnace |
| 03/19/2008 | EP1900829A1 Process and device for tempering steel strips |
| 03/19/2008 | EP1900256A1 Induction furnace for treating electrically conductive strips, sheets, plates, and field winding therefor |
| 03/19/2008 | EP1735116B1 Method for producing mat-surfaced austenitic stainless steel straps |
| 03/19/2008 | CN201037148Y Roller type quenching pressure disk |
| 03/19/2008 | CN101144376A Continuous expansion tube |
| 03/19/2008 | CN101144142A Heat treatment method of high-strength high-toughness hot continuous rolling steel plate for engineering machine |
| 03/19/2008 | CN101144141A Steel for high-strength 13Cr oil sleeve and manufacturing method thereof |
| 03/19/2008 | CN101144140A Flying shear blade and preparation method thereof |
| 03/19/2008 | CN101144138A Steel plate for low temperature pressure container and producing method thereof |
| 03/19/2008 | CN101144113A Technique for producing deep-drawing cold-rolled plate based on CSP technique |
| 03/19/2008 | CN101144112A Quenching device |
| 03/19/2008 | CN100375790C No-blowdown oil film eliminator |
| 03/18/2008 | US7344608 Method and apparatus for heat-treating an article and a fixture for use in the same |
| 03/18/2008 | CA2139522C Continuous method for producing final gauge stainless steel product |
| 03/13/2008 | WO2008028638A1 Method for the production of a concrete conveying pipe |
| 03/13/2008 | WO2007114853A3 Deoxygenation of furnaces with hydrogen-containing atmospheres |
| 03/13/2008 | US20080060727 Ferrous seal sliding parts and producing method thereof |
| 03/13/2008 | US20080060726 Method and apparatus for heat treatment of steel rail |
| 03/13/2008 | US20080060725 having density-dependent stiffnesses and density-dependent strengths closely matching those of natural bones; amorphous alloy selected from Zr, Ti, Al, Fe, La, Cu, Ce, Mg, Au alloy, pd alloy; good biocompatibility and bioactivity; substitutes for bone tissue engineering applications |
| 03/12/2008 | EP1897961A1 Hot-forged products excellent in fatigue strength, process for production thereof, and machine structural parts |
| 03/12/2008 | EP1897960A1 Heat treatment oil composition |
| 03/12/2008 | EP1896624A1 Martensitic stainless steel composition, method for making a mechanical part from said steel and resulting part |
| 03/12/2008 | EP1786944B1 Low pressure thermochemical treatment machine |
| 03/12/2008 | CN201033798Y Carbide annealing furnace |
| 03/12/2008 | CN201033797Y Carbide annealing furnace |
| 03/12/2008 | CN201033793Y Steel pipe water quenching heating-furnace out inclined roller way |
| 03/12/2008 | CN101139696A Method for nitriding iron and steel in salt bath |
| 03/12/2008 | CN101139692A Martensitic stainless steel cementation method and product thereof |
| 03/12/2008 | CN101139652A Off-line prediction method for bell-type furnace steel roll annealing process |
| 03/12/2008 | CN101139651A Method for forecasting steel plate recrystallization temperature under random short time condition |
| 03/12/2008 | CN101139650A Middle-small modulus gear high-frequency hardening production line automatic control system and method |
| 03/12/2008 | CN101139649A Intermediate frequency heat treating continuous furnace for shaft products |
| 03/12/2008 | CN101139648A Oil quenching bath water cooling facility |
| 03/12/2008 | CN101139647A Automobile longitudinal girder strengthening method |
| 03/12/2008 | CN101139646A Short-time upper bainite isothermal heat treatment process for industrial 9SiCr steel |
| 03/12/2008 | CN101139645A Short-time lower bainite isothermal heat treatment process for industrial 9SiCr steel |
| 03/12/2008 | CN100375208C Heat treatment system |
| 03/12/2008 | CN100374609C Novel chrome steel high speed steel and heat treatment process thereof |
| 03/12/2008 | CN100374602C Steel composition and parts forged by a forging die |
| 03/12/2008 | CN100374584C Softening method of automobile component part cold extrusion blank |
| 03/12/2008 | CN100374583C Method for producing Fe-Ni based alloy thin plate |
| 03/12/2008 | CN100374373C Prepn process of magnesia for silicon steel |
| 03/11/2008 | CA2290141C Safety wheel, process for manufacturing said wheel, and bogie fitted with said wheel |
| 03/06/2008 | WO2008026459A1 Pulley for continuously variable transmission |
| 03/06/2008 | WO2008025387A1 Method and tool for hot forming a metal workpiece |
| 03/06/2008 | US20080053579 Ferrous alloy; high concentration of lower bainite |
| 03/06/2008 | US20080053578 Without warping or deformation in heat treatment with even and high hardness |
| 03/06/2008 | US20080053576 Press formability by regulating a retained austenite ratio and accelerates the formation of oxides by regulating a hydrogen concentration and a dew point in annealing before plating; automobile |
| 03/06/2008 | US20080053384 Piston having diode laser hardened primary compression ring groove and method of making the same |
| 03/05/2008 | EP1894666A2 Laser hardening device |
| 03/05/2008 | EP1563103B1 Method for making an abrasion resistant steel plate and steel plate obtained |