| |
 |
|
Class Information
Number: 148/520
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 > Producing or treating layered, bonded, welded, or mechanically engaged article or stock as a final product > Pipe or tube > With induction heating
Description: Process which includes a step of heating the metal workpiece by utilizing a magnetic field to induce a flow of electrons in the workpiece that results in production of heat.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7258754 |
Method of fabricating a bare aluminum conductor |
Aug. 21, 2007 |
| 7024897 |
Method of forming a tubular blank into a structural component and die therefor |
Apr. 11, 2006 |
| 7003996 |
Method of forming a tubular blank into a structural component and die therefor |
Feb. 28, 2006 |
| 6891139 |
Heat treatment apparatus, heat treatment method, medium on which heat treatment program is recorded, and steel product |
May. 10, 2005 |
| 6613164 |
Method of forming a tubular blank into a structural component and die therefor |
Sep. 2, 2003 |
| 6454884 |
Method of manufacturing a vehicle structural beam |
Sep. 24, 2002 |
| 6375895 |
Hardfacing alloy, methods, and products |
Apr. 23, 2002 |
| 6322645 |
Method of forming a tubular blank into a structural component and die therefor |
Nov. 27, 2001 |
| 6290786 |
Method and apparatus for coating the seams of welded tubes |
Sep. 18, 2001 |
| 6042659 |
Method of coating the seams of a welded tube |
Mar. 28, 2000 |
| 5900079 |
Method for producing a steel pipe using a high density energy beam |
May. 4, 1999 |
| 5853507 |
Method for manufacturing heat exchangers to allow uniform expansion of tubing |
Dec. 29, 1998 |
| 5620536 |
Manufacture of zirconium cladding tube with internal liner |
Apr. 15, 1997 |
| 5487795 |
Method for heat treating an impact beam of automotive vehicle door and a system of the same |
Jan. 30, 1996 |
| 5437747 |
Method of fabricating zircalloy tubing having high resistance to crack propagation |
Aug. 1, 1995 |
| 5417780 |
Process for improving corrosion resistance of zirconium or zirconium alloy barrier cladding |
May. 23, 1995 |
| 5332454 |
Titanium or titanium based alloy corrosion resistant tubing from welded stock |
Jul. 26, 1994 |
| 5226981 |
Method of manufacturing corrosion resistant tubing from welded stock of titanium or titanium base alloy |
Jul. 13, 1993 |
| 5192376 |
Process for producing automobile body reinforcing steel pipe |
Mar. 9, 1993 |
| 5157232 |
Method and apparatus for inductively heating asymmetrically shaped workpieces |
Oct. 20, 1992 |
| 5140118 |
Metal tube induction annealing method and apparatus |
Aug. 18, 1992 |
| 5037490 |
Process for allowing pretreatment of assembled camshaft components |
Aug. 6, 1991 |
| 4975128 |
Method for heat-treating straight bead welded pipes |
Dec. 4, 1990 |
| 4807801 |
Method of ameliorating the residual stresses in metallic duplex tubes and the like and apparatus therefor |
Feb. 28, 1989 |
| 4772336 |
Method of improving residual stress in circumferential weld zone |
Sep. 20, 1988 |
| 4766664 |
Process for formation of high strength aluminum ladder structures |
Aug. 30, 1988 |
| 4731131 |
Method of subjecting welded structure to heat treatment |
Mar. 15, 1988 |
| 4726856 |
Method for heat treating metal pipes |
Feb. 23, 1988 |
| 4721536 |
Method for making steel tubes or pipes of increased acidic gas resistance |
Jan. 26, 1988 |
| 4690716 |
Process for forming seamless tubing of zirconium or titanium alloys from welded precursors |
Sep. 1, 1987 |
| 4608101 |
Method for heat treating pipe with double-pipe section |
Aug. 26, 1986 |
| 4590346 |
Method of heating piping arrangement and heating coil |
May. 20, 1986 |
| 4576654 |
Heat treated tube |
Mar. 18, 1986 |
| 4526628 |
Method of manufacturing a car stabilizer |
Jul. 2, 1985 |
| 4505763 |
Heat-treating method of weld portion of piping system and heating coil for the heat treatment |
Mar. 19, 1985 |
| 4354883 |
Method for improving the residual stress in austenitic stainless steel pipes and the like by induction heating |
Oct. 19, 1982 |
| 4229235 |
Heat-treating method for pipes |
Oct. 21, 1980 |
| 4151018 |
Drill pipe manufacture |
Apr. 24, 1979 |
| 4142713 |
Method of heat-treatment of welded pipe and apparatus therefor |
Mar. 6, 1979 |
| 4018634 |
Method of producing high strength steel pipe |
Apr. 19, 1977 |
| 3997374 |
Heat treatment of welds |
Dec. 14, 1976 |
| 3976520 |
Pipe and process for producing a welded and quench hardened steel |
Aug. 24, 1976 |
|
|
|
