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Class Information
Number: 148/548
Name: Metal treatment > Process of modifying or maintaining internal physical structure (i.e., microstructure) or chemical properties of metal, process of reactive coating of metal and process of chemical-heat removing (e.g., flame-cutting, etc.) or burning of metal > With casting or solidifying from melt > Iron(fe) or iron base alloy > With tempering, ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening, or quenching
Description: Process which involves a step of tempering, ageing, solution treating (i.e., for hardening), precipitation hardening or precipitation strengthening, or quenching as a literally expressed operation.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459040 |
Method for making a steel article with carbides already in the steel and no deformation used in the process |
Dec. 2, 2008 |
| 7459041 |
Method for making an abrasion-resistant steel plate |
Dec. 2, 2008 |
| 7323070 |
Maraging steel excellent in fatigue characteristics and method for producing the same |
Jan. 29, 2008 |
| 7160398 |
Method of making rapidly solidified alloy for magnet |
Jan. 9, 2007 |
| 6971351 |
Valve timing adjusting device |
Dec. 6, 2005 |
| 6863749 |
Method of improving the toughness of low-carbon, high-strength steels |
Mar. 8, 2005 |
| 6841011 |
Iron base high temperature alloy and method of making |
Jan. 11, 2005 |
| 6702905 |
Corrosion and wear resistant alloy |
Mar. 9, 2004 |
| 6579385 |
Free machining steel for use in machine structure of excellent mechanical characteristics |
Jun. 17, 2003 |
| 6500283 |
Method of improving environmental resistance of investment cast superalloy articles |
Dec. 31, 2002 |
| 6494970 |
Heat resistant steel casting and method of manufacturing the same |
Dec. 17, 2002 |
| 6319338 |
High-strength steel plate having high dynamic deformation resistance and method of manufacturing the same |
Nov. 20, 2001 |
| 6221184 |
Process of the production of high-carbon cast steels intended for wearing parts |
Apr. 24, 2001 |
| 6033497 |
Pitting resistant duplex stainless steel alloy with improved machinability and method of making thereof |
Mar. 7, 2000 |
| 5855701 |
Method of manufacture high carbon content steel |
Jan. 5, 1999 |
| 5849114 |
Method of forming plate-type track shoe |
Dec. 15, 1998 |
| 5803152 |
Microstructurally refined multiphase castings |
Sep. 8, 1998 |
| 5738737 |
Process for making superplastic steel powder and flakes |
Apr. 14, 1998 |
| 5650024 |
Martensitic heat-resisting steel excellent in HAZ-softening resistance and process for producing the same |
Jul. 22, 1997 |
| 5522949 |
Class of ductile iron, and process of forming same |
Jun. 4, 1996 |
| 5370751 |
Hot rolled and air hardened steel for manufacturing structural tubes and method thereof |
Dec. 6, 1994 |
| 5250125 |
Process for grain refinement of aluminium casting alloys, in particular aluminium/silicon casting alloys |
Oct. 5, 1993 |
| 5154781 |
Method to make casting alloy golf clubs |
Oct. 13, 1992 |
| 5085712 |
Iron/copper/chromium alloy material for high-strength lead frame or pin grid array |
Feb. 4, 1992 |
| 4969957 |
Method of producing a mechanical component with superior fatigue strength |
Nov. 13, 1990 |
| 4957703 |
Precipitation-hardenable nickel-base superalloy with improved mechanical properties in the temperature range from 600 to 750 degrees celsius |
Sep. 18, 1990 |
| 4867804 |
Manufacturing process of toughened bainitic nodular graphite cast iron |
Sep. 19, 1989 |
| 4770721 |
Process of treating steel for a vehicle suspension spring to improve sag-resistance |
Sep. 13, 1988 |
| 4711675 |
Process for improving the sag-resistance and hardenability of a spring steel |
Dec. 8, 1987 |
| 4610734 |
Process for manufacturing corrosion resistant chromium steel |
Sep. 9, 1986 |
| 4572747 |
Method of producing boron alloy |
Feb. 25, 1986 |
| 4374680 |
Corrosion-resistant weldable martensitic stainless steel, process for the manufacture thereof and articles |
Feb. 22, 1983 |
| 4344801 |
Heavy thick high-strength casting having improved weldability and impact properties |
Aug. 17, 1982 |
| 4218268 |
High corrosion resistant and high strength medium Cr and low Ni stainless cast steel |
Aug. 19, 1980 |
| 4217150 |
Corrosion resistant austenitic steel |
Aug. 12, 1980 |
| 4207097 |
Lead alloy for lead-acid batteries and process for producing the alloy |
Jun. 10, 1980 |
| 4087287 |
Method for providing ferritic-iron-based alloys |
May. 2, 1978 |
| 4023985 |
Steel abrasives and method for producing same |
May. 17, 1977 |
| 3971677 |
Low expansion alloys |
Jul. 27, 1976 |
| 3966511 |
Process for the manufacture of anti-abradant elements |
Jun. 29, 1976 |
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