| Patents for C21D 7 - Modifying the physical properties of iron or steel by deformation (3,811) |
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| 04/22/2008 | US7361235 sufficient alpha to gamma transformation during heat treatment is ensured by suppressing the bonding of Ti with C thereby to maintain the C concentration in the matrix even when Ti is added to the oxide dispersion strengthened ferritic steel |
| 04/22/2008 | CA2501200C An apparatus and method for improving work surface during forming and shaping of materials |
| 04/16/2008 | CN100381598C Orientating silicon steel, manufacturing process and equipment thereof |
| 04/10/2008 | WO2008042161A2 Method and apparatus for improving the distribution of compressive stress |
| 04/10/2008 | CA2664354A1 Method and apparatus for improving the distribution of compressive stress |
| 04/09/2008 | EP1546426B1 Steel composition and parts forged by a forging die |
| 04/09/2008 | EP1063313B1 Steel wire and method of manufacturing the same |
| 04/09/2008 | CN100379883C Method of increasing strength of cold worked part by ultrasonic shock treatment, and metal product |
| 04/08/2008 | US7354492 discreetly measuring the technological parameters of a strip milling and the angular rates of the working rollers of mill stands and table rollers; for optimizing the rolling process |
| 04/04/2008 | WO2008037949A1 Apparatus and method for electric spark peening of gas turbine components |
| 04/03/2008 | WO2008037948A1 A method and an apparatus for prestressing components by electrical discharge |
| 04/03/2008 | WO2008037387A1 Method for increasing the fracture toughness of the outer layer of a carbide cutting edge of a drill |
| 04/03/2008 | US20080081208 Method and apparatus for improving the distribution of compressive stress |
| 04/03/2008 | DE102006046263B3 Verfahren zur Erhöhung der Bruchzähigkeit der Randschicht einer Hartmetallschneide eines Bohrers A method for increasing the fracture toughness of the surface layer of a carbide cutting edge of a drill |
| 04/02/2008 | EP1905953A2 Low plasticity burnishing of coated titanium parts |
| 04/02/2008 | EP1905852A2 Varying fluence as a function of thickness during laser shock peening |
| 04/02/2008 | CN101153355A Machining method for improving internal soundness and capability of large scale rod bar |
| 04/02/2008 | CN101152689A Renovation technology for ladle |
| 04/01/2008 | CA2363306C Process for increasing the life of rotor blade attachments |
| 03/27/2008 | US20080073004 Improving spring properties, characterized by tensile strength and dimensional accuracy of spring elements made from a corrosion-resistant ferritic chromium steel by use of cold-working, solution-annealing, quenching, and stamping or cutting techniques |
| 03/26/2008 | CN201040296Y Variable speed double helix high temperature oil pipe aligning device |
| 03/25/2008 | CA2470258C A spectacle frame |
| 03/20/2008 | WO2008031387A1 Eddy-current method for non-destructive quality control of mechanically hardened surfaces of austenitic steel tubes |
| 03/19/2008 | CN101146646A Method for deep rolling crankshafts |
| 03/18/2008 | US7344609 Quality, long service life structural materials having relaxed residual stress patterns and reformed grain boundaries |
| 03/12/2008 | CN101142336A Linepipe steel |
| 03/12/2008 | CN101139696A Method for nitriding iron and steel in salt bath |
| 03/12/2008 | CN101138817A Device for controlling welding stress deformation along with soldering impact, revolving and extrusion pressing |
| 03/12/2008 | CN100374608C High-strength anti-corrosion steel plate for rail vehicle and its making method |
| 03/12/2008 | CN100374602C Steel composition and parts forged by a forging die |
| 03/06/2008 | DE19909324B4 Hochzäher Stahl und Verfahren zur Herstellung desselben Of the same high-toughness steel and methods for making |
| 03/05/2008 | CN100372962C Superhigh strength steel plate with yield strength more than 1100Mpa and method for producing same |
| 02/28/2008 | WO2008023410A1 Austenite-base stainless steel pipe, for boiler, having excellent high-temperature steam oxidation resistance |
| 02/27/2008 | CN101130828A Ultrasonic deep-rolling and tumbling integrated surface strengthening device |
| 02/27/2008 | CN100371488C Crankshaft |
| 02/21/2008 | WO2007115550A3 Method for producing a gas turbine component |
| 02/21/2008 | US20080041503 Excellent Cold-Workability Exhibiting High-Strength Steel Wire or Steel Bar or High-Strength Shaped Article, and Process for Producing Them |
| 02/20/2008 | CN101126118A Autofrettage process for a pump fluid end |
| 02/20/2008 | CN101125402A Method for processing heat coiling spring whose spring wire diameter is 90 millimeter |
| 02/20/2008 | CN100369702C Method of manufacturing metallic products such as sheet by cold working and flash annealing |
| 02/13/2008 | CN101124063A Welded joints with new properties and provision of such properties by ultrasonic impact treatment |
| 02/13/2008 | CN100368583C Thin gauge gas cylinder steel with good stamping performance and process for producing same |
| 02/07/2008 | DE102006036519A1 Deckelelement für eine Sonotrode und Strahlkammeranordnung zum Oberflächenstrahlen von Bauteilen Cover element for a horn and jet chamber array for surface blasting of components |
| 02/06/2008 | EP1884573A1 Steel manufacturing process and steel obtained using this process |
| 02/06/2008 | CN101117685A Non-magnetic alloy and counterbalance produced thereby |
| 01/30/2008 | CN101113508A Method for metal parts surface defects restoring and antiseptic treatment |
| 01/30/2008 | CN100365137C Centrifugal strengthening machine for strengthening steel ball by mutural collision |
| 01/29/2008 | US7323070 ultralow carbon-Ni steel or ultralow carbon-Ni Co steel; strengthened by precipitation intermetallic compounds of Ti or Mo, etc. on a matrix of tough martensite |
| 01/24/2008 | DE202004021411U1 Bauteil mit Druckeigenspannungen und Vorrichtung zur Erzeugung von Druckeigenspannungen Component having compressive residual stresses and apparatus for producing compressive residual stresses |
| 01/23/2008 | CN101109038A Thermal treatment technique for improving rigidity of integer manhole flange sealing surface |
| 01/16/2008 | EP1877599A2 Method of producing nanocrystalline monolithic articles |
| 01/16/2008 | CN101104908A Iron-base shape memory alloy locked key and its manufacturing and using method |
| 01/16/2008 | CN101104879A Sintered aggregate rolling deforming method and device for ejecting and depositing porous material |
| 01/10/2008 | US20080008901 Steel Sheet Having High Young's Modulus, Hot-Dip Galvanized Steel Sheet Using The Same, Alloyed Hot-Dip Galvanized Steel Sheet, Steel Pipe Having High Young's Modulus And Methods For Manufacturing These |
| 01/10/2008 | US20080008595 Compressor wheel |
| 01/09/2008 | EP1716260B1 Method for increasing the endurance limit, in particular the bending strength and torsional strength of crankshafts |
| 01/03/2008 | DE102006030458A1 Toothed wheel processing method comprises heating wheel to elevated starting temperature and holding at this temperature while subjecting surface to stream of solid body particles |
| 01/02/2008 | EP1873261A1 Component of variable thickness having residual compressive stresses therein, and method therefor |
| 01/02/2008 | CN101096966A Component of variable thickness having residual compressive stresses therein, and method therefor |
| 01/02/2008 | CN100359035C X65 pipeline steel for use in acid condition and its making process |
| 01/02/2008 | CN100359034C 1000Mpa-grade high-strength hot-rolled anti-bullet steel plate and making method |
| 12/27/2007 | US20070295430 Maraging steel excellent in fatigue characteristics and method for producing the same |
| 12/23/2007 | CA2592664A1 Autofrettage process for a pump fluid end |
| 12/19/2007 | EP1867743A1 Austenitic stainless steel |
| 12/19/2007 | CN101089203A Hardening technology for surface alloy of gas valve of high power diesel engine |
| 12/13/2007 | DE102006054440B3 Autofrettage method for a fuel injection system of a diesel engine comprises reducing the volume for the fluid using a displacement plunger displaced by a plunger opening of a workpiece in the inner chamber of the workpiece |
| 12/12/2007 | CN100354436C Hot-rolled steel sheet for high-strength electric-resistancewelded pipe having sour-gas resistance and excellent weld toughness, and method for manufacturing the same |
| 12/11/2007 | CA2463371C Flattened u-bolt and method for making said u-bolt |
| 12/06/2007 | WO2007139953A2 Elongated member/radially expandable member assembly and methods of assembling the same |
| 12/06/2007 | WO2007137762A1 Method of machining the bearing seats of the main and rod bearings of crankshafts |
| 12/05/2007 | EP1862643A2 Pre-coating burnishing of erosion coated parts |
| 12/05/2007 | EP1861223A1 Method for deep rolling crankshafts |
| 12/05/2007 | CN100352964C Production of high-alloy cold mould steel |
| 12/05/2007 | CN100352574C Method of making a metallic thin wire and a medical tool into which the metallic thin wire is incorporated |
| 11/29/2007 | WO2007136547A2 Metallic article with improved fatigue performance and corrosion resistance and method for making the same |
| 11/29/2007 | CA2650911A1 Metallic article with improved fatigue performance and corrosion resistance and method for making the same |
| 11/28/2007 | CN101078036A Surface nano method for silicon-containing high-carbon steel 9SiCr |
| 11/27/2007 | US7300622 Device for generating nanostructures |
| 11/27/2007 | CA2260191C Method for expanding a steel tubing and well with such a tubing |
| 11/22/2007 | US20070267112 Cold-formed spring having high fatigue strength and high corrosion fatigue strength, steel for such spring, and method of manufacturing such spring |
| 11/22/2007 | US20070266754 Metallic article with improved fatigue performance and corrosion resistance and method for making the same |
| 11/21/2007 | CN101076574A Method for coating metal surfaces |
| 11/20/2007 | CA2390004C Cold formed flat-rolled steel structural members |
| 11/20/2007 | CA2207382C Ultra-high strength steels and method thereof |
| 11/14/2007 | CN200974853Y Steel tape softening machine |
| 11/08/2007 | WO2007127430A2 Alignment device and methods of using the same |
| 11/08/2007 | WO2007107588A3 Vibration-type measurement sensor |
| 11/08/2007 | WO2007096929A3 Optical method for evaluating the surface-hardening of a metallic or a metal-containing material |
| 11/08/2007 | WO2001081026A3 Method for processing metal and alloy billets |
| 11/01/2007 | WO2007076769A3 Coating material for substrates, containing a lubricant for shaping processes |
| 11/01/2007 | WO2007076766A3 Coating material for protecting metals, especially steel, from corrosion and/or scaling, method for coating metals and metal element |
| 11/01/2007 | CA2649379A1 High strength alloys |
| 10/31/2007 | EP1848866A1 A reinforcing bar |
| 10/31/2007 | DE102006019405A1 Werkzeug zur Kaltexpansion von Löchern Tool for cold expansion of holes |
| 10/30/2007 | US7288159 High impact and wear resistant steel |
| 10/25/2007 | US20070246135 Method of Manufacturing a Hardened Forged Steel Component |
| 10/24/2007 | EP1847749A2 Stainless steel oil feeding pipe |
| 10/24/2007 | EP1846628A1 A method and apparatus for forming metal reinforcing |
| 10/24/2007 | EP1306600B1 Stainless steel oil feeding pipe |
| 10/24/2007 | CN101058886A Surface treating and strengthening process for heavy vehicle bevel gear pair |