Method of diffusion brazing superalloy parts
July 20, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesGas turbine blade with chamber for circulation of cooling fluid and process for its manufacture Method for producing high strength metal-ceramic composition Diffusion brazing process for pieces of superalloys Cobalt-chromium superalloy Method of repairing heat resistant alloy parts Nickel base brazing alloy and method Method for joining single crystal turbine blade halves Powder metallurgy repair technique Polymer alloy material and process for production thereof Patent #: 5367048 InventorsApplicationNo. 357654 filed on 07/20/1999US Classes:228/119, Repairing, restoring, or renewing product for reuse228/194, Using intermediate diffusion facilitating material228/244Feeding unfused filler into fusing contact with work partExaminersPrimary: Mills, GregoryAssistant: Newsome, C. Attorney, Agent or FirmForeign Patent References
International ClassesB23K 031/00B23K 020/00 B23K 003/06 Foreign Application Priority Data1998-06-23 FRAbstractA method of diffusion brazing parts made of a superalloy A uses a single-component brazing powder prepared by measuring a quantity of a superalloy powder having a composition identical to the superalloy A and a quantity of a boron and/or silicon flux powder in a proportion of between 0.1% and 40% by weight of the superalloy powder, mixing the powders and placing them with balls made of superalloy A in a container also made of superalloy A, closing the container and keeping its contents in a controlled atmosphere, placing the container in a grinder and operating the grinder to keep the container moving for a period ranging from 30 seconds to 500 hours in order to encrust the flux onto the surface of the grains of the superalloy powder. | |
