-
公开(公告)号：NO156092C
公开(公告)日：1987-07-29
申请号：NO823951
申请日：1982-11-25
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A
Abstract: A processing sequence is described for producing specific controlled elongated oriented crystal structures in nickel base superalloys. The method is performed in the solid state. Superalloy material is provided in a dense workable form. The material is cold straight rolled and cold cross rolled with intermediate anneals. This sequence produces a particular texture or preferred orientation in the rolled article. This textured article is then directionally recrystallized to produce the desired final microstructure comprised of aligned elongated grains of a particular controllable orientation.
-
公开(公告)号：GB2110241B
公开(公告)日：1985-09-18
申请号：GB8233043
申请日：1982-11-19
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A
Abstract: A processing sequence is described for producing specific controlled elongated oriented crystal structures in nickel base superalloys. The method is performed in the solid state. Superalloy material is provided in a dense workable form. The material is cold straight rolled and cold cross rolled with intermediate anneals. This sequence produces a particular texture or preferred orientation in the rolled article. This textured article is then directionally recrystallized to produce the desired final microstructure comprised of aligned elongated grains of a particular controllable orientation.
-
公开(公告)号：GB2110241A
公开(公告)日：1983-06-15
申请号：GB8233043
申请日：1982-11-19
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A
Abstract: A processing sequence is described for producing specific controlled elongated oriented crystal structures in nickel base superalloys. The method is performed in the solid state. Superalloy material is provided in a dense workable form. The material is cold straight rolled and cold cross rolled with intermediate anneals. This sequence produces a particular texture or preferred orientation in the rolled article. This textured article is then directionally recrystallized to produce the desired final microstructure comprised of aligned elongated grains of a particular controllable orientation.
-
公开(公告)号：SG11201406504XA
公开(公告)日：2014-11-27
申请号：SG11201406504X
申请日：2013-06-04
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , CHIN HERBERT A , MARCIN JOHN JOSEPH , REYNOLDS PAUL L , SUCIU GABRIEL L , GENEREUX PAUL D
-
公开(公告)号：DE602005013320D1
公开(公告)日：2009-04-30
申请号：DE602005013320
申请日：2005-05-11
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A , OGDEN WILLIAM P , HALUCK DAVID A
Abstract: A carbo-nitriding process for forming a martensitic stainless steel, which is case hardened and superior corrosion resistance over carburized process, is provided. A process for forming a martensitic stainless steel which is case hardened is provided. The process comprises the steps of providing a material consisting essentially of from 8.0 to 18 wt% chromium, cobalt up to 16 wt%, vanadium up to 5.0 wt%, molybdenum up to 8.0 wt%, nickel up to 8.0 wt%, manganese up to 4.0 wt%, silicon up to 2.0 wt%, tungsten up to 6.0 wt%, titanium up to 2.0 wt%, niobium up to 4.0 wt% and the balance iron, and carbo-nitriding to prescribed levels of C + N, to form a hard, corrosion resistance case in a fracture tough stainless steel.
-
Patent Agency Ranking
公开(公告)号：CH655951A5
公开(公告)日：1986-05-30
申请号：CH681882
申请日：1982-11-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A
-
公开(公告)号：CA2864182C
公开(公告)日：2020-06-30
申请号：CA2864182
申请日：2013-04-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A , OGDEN WILLIAM P , HALUCK DAVID A , MCCUTCHAN SEAN , SPITZER RONALD F , KELLER ALLEN V
Abstract: A method of treating bearing rolling elements or bearing rings after a hardening and temper heat treatment is disclosed. The method may include treating the bearing rolling elements in a tumbling treatment and then in a duplex hardening treatment. The method may include treating the bearing rings in a peening treatment and then in a duplex hardening treatment. The duplex hardening treatment may also include at least one sequential process segment consisting of subjecting the bearing rolling element & rings to a nitriding process to increase the surface hardness and compressive residual stress. The combined two-step process produces a deep surface/sub-surface residual stress greater than the depth of the maximum operating von-Mises shear stress along with an ultra-hard surface with high magnitude of compressive residual stress. In so doing, the bearing ring and rolling elements will have significantly enhanced rolling contact fatigue resistance and resistance to surface imperfections and debris.
-
公开(公告)号：AU9077382A
公开(公告)日：1983-06-02
申请号：AU9077382
申请日：1982-11-22
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A
Abstract: A processing sequence is described for producing specific controlled elongated oriented crystal structures in nickel base superalloys. The method is performed in the solid state. Superalloy material is provided in a dense workable form. The material is cold straight rolled and cold cross rolled with intermediate anneals. This sequence produces a particular texture or preferred orientation in the rolled article. This textured article is then directionally recrystallized to produce the desired final microstructure comprised of aligned elongated grains of a particular controllable orientation.
-
公开(公告)号：IT8224402D0
公开(公告)日：1982-11-24
申请号：IT2440282
申请日：1982-11-24
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A
Abstract: A processing sequence is described for producing specific controlled elongated oriented crystal structures in nickel base superalloys. The method is performed in the solid state. Superalloy material is provided in a dense workable form. The material is cold straight rolled and cold cross rolled with intermediate anneals. This sequence produces a particular texture or preferred orientation in the rolled article. This textured article is then directionally recrystallized to produce the desired final microstructure comprised of aligned elongated grains of a particular controllable orientation.
-
公开(公告)号：CA2864182A1
公开(公告)日：2013-11-21
申请号：CA2864182
申请日：2013-04-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CHIN HERBERT A , OGDEN WILLIAM P , HALUCK DAVID A , MCCUTCHAN SEAN , SPITZER RONALD F , KELLER ALLEN V
Abstract: A method of treating bearing rolling elements or bearing rings after a hardening and temper heat treatment is disclosed. The method may include treating the bearing rolling elements in a tumbling treatment and then in a duplex hardening treatment. The method may include treating the bearing rings in a peening treatment and then in a duplex hardening treatment. The duplex hardening treatment may also include at least one sequential process segment consisting of subjecting the bearing rolling element & rings to a nitriding process to increase the surface hardness and compressive residual stress. The combined two-step process produces a deep surface/sub-surface residual stress greater than the depth of the maximum operating von-Mises shear stress along with an ultra-hard surface with high magnitude of compressive residual stress. In so doing, the bearing ring and rolling elements will have significantly enhanced rolling contact fatigue resistance and resistance to surface imperfections and debris.
-
-
-
-
-
-
-
-
-
Search Results
24
records
(took 0.023 seconds)
