Class / Patent application number | Description | Number of patent applications / Date published |
148512000 | Surface melting (e.g., melt alloying, etc.) | 10 |
20080251163 | Bio-Co-Cr-Mo Alloy With Ion Elution Suppressed by Structure Control, And Process For Producing Same - This invention provides a technique for rendering bio-toxicity such as allergy toxicity derived from Ni trace impurity, i.e., nickel toxicity, which is unavoidably present in a bio-Co—Cr—Mo alloy or an Ni-free stainless steel alloy unharmful, characterized in that an element selected from the group consisting of the group 4, 5 and 13 elements of the periodic table, particularly an element selected from the group consisting of the group 4 elements of the periodic table, is added to the alloy composition. The additive element is preferably an element selected from the group consisting of zirconium and titanium, more preferably zirconium. | 10-16-2008 |
20090145526 | Low core loss grain-oriented electrical steel sheet and method for producing the same - An object of the present invention is to provide a grain-oriented electrical steel sheet with low core loss and low magnetostriction and a method for producing the same. The grain-oriented electrical steel sheet is excellent in reduced core loss and magnetostriction while under a high flux density of 1.9 T, comprises a refined magnetic domain comprising a laser irradiated portion which has melted and resolidified to form a solidified layer, wherein the thickness of the solidified layer is 4 μm or less. The grain-oriented electrical steel sheet may further comprise a laser irradiated portion where a surface roughness Rz is small and a cross section viewed from a transverse direction has a concave portion having a width of 200 μm or less and a depth of 10 μm or less for further improvement. | 06-11-2009 |
20090199934 | TREATING AL/ZN-BASED ALLOY COATED PRODUCTS - A method of treating an Al/Zn-based alloy coated product that includes an Al/Zn-based alloy coating on a substrate is disclosed. The method includes the steps of rapid intense heating of the alloy coating for a very short duration, and rapid cooling of the alloy coating, and forming a modified crystalline microstructure of the alloy coating. | 08-13-2009 |
20100154940 | MELT-TREATED RIM OF A PISTON COMBUSTION BOWL - A method for producing pistons that can be used in internal combustion engines made from lightweight metal, with a combustion bowl assigned to one piston head, wherein a bowl rim is subjected to a melt treatment. In a first method step, the bowl rim is inductively heated. In a second method step, the material of the bowl rim, also to be referred to as the delimiting zone, is improved by means of a laser beam. | 06-24-2010 |
20100288399 | Device and method for remelting metallic surfaces - A method for remelting metallic surfaces of components using the effect of a stable high pressure plasma jet, includes melting the surface in localized areas, the surface having a structure refinement after solidification. The plasma jet action is generated by the microwave impact on a carrier gas, the pressure of the high pressure plasma jet being above the atmospheric pressure. In addition, a plasma torch for generating a directed high pressure plasma jet includes a gas supply, a device for generating a plasma, and an outlet nozzle for a plasma jet. The device for generating the plasma includes a magnetron and a resonator in which the supplied pressurized carrier gas is transferred into a plasma under the effect of microwaves, causing the plasma to exit through the outlet nozzle at a pressure above 0.1 MPa. | 11-18-2010 |
20120111458 | METHOD OF INCREASING HEAT EXCHANGE SURFACES AND ACTIVE SURFACES OF METAL ELEMENTS INCLUDING, IN PARTICULAR, HEAT EXCHANGE SURFACES - The unique character of the method of remelting of a surface in the presence of a steam channel is related to the fact that during the remelting process a processed element is subject to vibrations. The vibrations parameters are uniform at any given point of the remelted element. The element surface remelting method is unique since the process is performed at a temperature below the ebullition temperature and duting the remelting process the element being processed is subject to vibrations. The surface is remelted using a laser or electron beam. | 05-10-2012 |
20120118437 | Zinc coated steel with inorganic overlay for hot forming - The present invention is of zinc or zinc alloy coated steel for hot forming having an inorganic overlay covering the zinc or zinc alloy coating to prevent loss of zinc during heating and hot forming. In one embodiment, the inorganic overlay has a coefficient of thermal expansion greater than the coefficient of thermal expansion of zinc oxide. In another embodiment, the inorganic overlay has a compositional gradient interface with the zinc or zinc alloy coating. Preferably the inorganic overlay may be comprised of material selected from phosphates, oxides, nitrates, carbonates, silicate, chromate, molybdate, tungstate, vanadate, titanate, borate, fluoride and mixtures thereof. A method of preparing the steel for hot forming and a method for hot forming the steel are provided. | 05-17-2012 |
20140261900 | FRICTION SURFACE STIR PROCESS - A process is described that employs what can be termed a friction surface stirring (FSS) process on the surface of a metal object. The FSS process occurs on some or the entire surface of the metal object, at a location(s) separate from a friction stir welded joint. The FSS process on the surface produces a corrosion resistant mechanical conversion “coating” on the object. The “coating” is formed by the thickness of the material of the object that has been FSS processed. In one exemplary application, the process can be applied to a metal strip that is later formed into a tube whereby the “coated” surface resides on the inside of the tube making it highly resistant to corrosive flow such as seawater. | 09-18-2014 |
20150034214 | APPARATUS, SYSTEM, AND METHOD FOR REINFORCING A BEND IN METALLIC MATERIAL - Described herein is an apparatus for reinforcing a metallic material includes a rotatable tool that is insertable into the metallic material. The rotatable tool is configured to plastically deform the metallic material. The apparatus also includes a coolant delivery mechanism that is coupled to the rotatable tool. The coolant delivery mechanism is configured to deliver a coolant to the metallic material. | 02-05-2015 |
20160194744 | METHOD OF PRODUCING HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET AND METHOD OF PRODUCING HIGH-STRENGTH GALVANNEALED STEEL SHEET | 07-07-2016 |