| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 148215000 | Measuring, sensing, or testing | 8 |
| 20080277029 | Method and measurement system for the control of an active charge surface in the low pressure carburizing process - A method and measurement system for the control of an active charge surface in a low pressure carburizing process can avoid formation of by-products and achieve regular carburized layers. This can be achieved through sampling of outlet gas at a specified time and comparison with experimentally set model characteristics. | 11-13-2008 |
| 20100154937 | CARBONITRIDING METHOD, MACHINERY COMPONENT FABRICATION METHOD, AND MACHINERY COMPONENT - A carbonitriding method that can improve the nitrogen permeating rate to render the carbonitriding process effective includes an atmosphere control step ( | 06-24-2010 |
| 20110067784 | PROCESS FOR THE LOW-PRESSURE CARBURISATION OF METAL WORKPIECES - The invention relates to a process for the low-pressure carburisation of metal workpieces in an evacuable furnace, in which acetylene is added to the furnace atmosphere as the carburisation gas, wherein the partial pressure of the acetylene is varied intermittently and wherein the partial pressure of the acetylene in the furnace atmosphere is kept below | 03-24-2011 |
| 20130008565 | METHOD AND APPARATUS FOR HEAT TREATING A METAL - Described herein is a method that can be used for heat treating a metal in at least one of the following processes: carburizing, carbonitriding, nitrocarburizing, and neutral carbon potential annealing operations that are used in a 1 atmosphere pressure furnace and in an atmosphere that is oxygen free and comprises nitrogen and at least one hydrocarbon. | 01-10-2013 |
| 20150047747 | SURFACE TREATING METHOD FOR A GOLF CLUB HEAD - A surface treating method for a golf club head made of carbon steel basically has one nitriding step and two oxidizing steps. The method further has polishing, sandblasting and rinsing steps and so on processed prior to or between the basic steps, and then has polishing and oil immersing steps and so on processed after the basic steps. The finished golf club head has uniform dark appearance and also has good corrosion resistance and abrasion resistance. Furthermore, the surface of the finished golf club head does not peel off. Moreover, the method also has advantages including low pollution and low cost. | 02-19-2015 |
| 20150059930 | GROOVE MANUFACTURING METHOD - A method for forming a profile having at least three consecutive concave surfaces in an internal surface of a metal part includes piercing the metal part to create at least three consecutive concave surfaces. First, second and third concave surfaces respectively have first, second and third radii of curvature. The second concave surface is between the first and third concave surfaces. The second radius of curvature is different from the first and third radii of curvature. The method includes carburizing the metal part, grinding the second concave surface, and linear broaching the first and third concave surfaces with an abrasive-covered broach. A method for forming a groove in a surface of a metal part includes broaching the surface to create a groove having a groove surface, carburizing the metal part, and broaching a portion of the groove surface with an abrasive-covered broach after carburizing the metal part. | 03-05-2015 |
| 148216000 | Of gas composition (e.g., carbon content, etc.) | 2 |
| 20090314388 | Method and Device for Thermal Treatment of Metallic Materials - A method and a device for the heat treatment of metal materials in an industrial furnace involves a heating chamber having a treatment chamber and a quenching chamber utilizing inert gas and reaction gas. | 12-24-2009 |
| 20090320962 | CARBURIZING APPARATUS AND CARBURIZING METHOD - A carburizing apparatus that performs a vacuum carburizing treatment with respect to an object includes: a carburizing furnace that contains the object; a gas supply apparatus that supplies a carburizing gas to the carburizing furnace; a light emitting device that emits light by using an in-furnace gas inside of the carburizing furnace which is supplied with the carburizing gas; a light receiving device that receives light emitted from the light emitting device; and a processing device that calculates the composition of the in-furnace gas based on the light receiving result of the light receiving device. | 12-31-2009 |
