| Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435) |
|---|
| 01/15/1992 | EP0466491A2 Anti-oxidation agent for continuous annealing of stainless steel strip and anti-oxidation method using the same |
| 01/14/1992 | WO1992000801A1 Method and apparatus for treating gases and/or solid material in a circulating fluidized bed reactor |
| 01/14/1992 | US5080729 Process for rapid quenching in a collapsed bed |
| 01/14/1992 | CA2087253A1 Method and apparatus for treating gases and/or solid material in a circulating fluidized bed reactor |
| 01/14/1992 | CA1294126C Reheating furnace with rotating-flame burners for slabs and billets |
| 01/09/1992 | DE4018355A1 Verfahren zur oberflaechenbehandlung von werkstuecken mit laserstrahlung A method for the surface finishing of workpieces with laser radiation |
| 01/08/1992 | EP0464890A1 Cooling system for cooling a moving metal strip |
| 01/08/1992 | EP0464275A1 Improvement of magnetic and mechanical properties of amorphous alloys by pulse high current |
| 01/02/1992 | EP0464013A1 Steel and a steel manufacturing method |
| 12/27/1991 | EP0462957A2 Device for the accelerated cooling of a moving metal product |
| 12/25/1991 | CN2091440U Net belt type bidirection transmission heat treating furnace |
| 12/24/1991 | US5074782 Industrial furnace with improved heat transfer |
| 12/24/1991 | US5074533 Endothermic furnace |
| 12/19/1991 | DE4042349A1 Verfahren zur oberflaechenbehandlung von werkstuecken mit laserstrahlung A method for the surface finishing of workpieces with laser radiation |
| 12/18/1991 | EP0461734A1 Method for improving the hydrogen-induced stress corrosion cracking resistance of steel articles |
| 12/17/1991 | US5073332 Device to position a device in a cylindrical cavity comprising perforation disposed along a regular network |
| 12/17/1991 | US5073212 Method of surface hardening of turbine blades and the like with high energy thermal pulses, and resulting product |
| 12/12/1991 | WO1991018705A1 Process for treating the surfaces of workpieces with laser radiation |
| 12/12/1991 | WO1991018704A1 Process for treating the surfaces of workpieces with laser radiation |
| 12/12/1991 | DE4107097A1 Closure device for heat treatment appts. |
| 12/12/1991 | DE4018566A1 Hardened material shaping - uses lower forces during heating than levels for elastic or plastic distortion to allow major shape and size changes |
| 12/11/1991 | EP0460484A2 Closure device for a heat treatment installation |
| 12/11/1991 | EP0460211A1 Production of anticorrosive and antiwearing alloy |
| 12/11/1991 | CN1015066B Process for heat treatment of metallic workpieces |
| 12/10/1991 | US5071492 Method for reducing the fatigue crack growth rate of cracks in the aluminum alloy fuselage skin of an aircraft structure |
| 12/09/1991 | WO1991019148A1 Fluidized bed with submerged infrared lamps |
| 12/04/1991 | CN1056716A High-strength cold rolling diphase steel plate and made method |
| 12/03/1991 | US5069728 Process for heat treating metals in a continuous oven under controlled atmosphere |
| 12/03/1991 | US5069428 Method and apparatus of continuous dynamic joule heating to improve magnetic properties and to avoid annealing embrittlement of ferro-magnetic amorphous alloys |
| 11/27/1991 | EP0458183A2 Method for making available treatment gases for heat treatments |
| 11/20/1991 | CN2089008U Plasma arc metal surface strengthening canner |
| 11/20/1991 | CN1014821B Process for increasing pre-loading bearing precision |
| 11/19/1991 | US5065501 Generating electromagnetic fields in a self regulating temperature heater by positioning of a current return bus |
| 11/14/1991 | DE4014761A1 Hardening workpieces - using computer to determine optimum heating and material transformation condition and quenching speed via expected movement of carbon |
| 11/14/1991 | DE4014630A1 Oven providing rapid uniform heating of metallic workpieces - has several flow channels, rotatable gas flow distributor and encircling vacuum pressure chamber |
| 11/12/1991 | US5064479 Thermal treatment in a fluidized bed |
| 11/12/1991 | US5064478 Method and apparatus for surface austempering of cast iron parts |
| 11/12/1991 | US5064173 Process and device for the annealing treatment of metal strips |
| 11/06/1991 | CN1014615B Technology of surface hardening treatment by laser and equipment thereof |
| 10/30/1991 | EP0453735A1 Apparatus for internal induction heating of cylinder liners of combustion engines for hardening said liners |
| 10/29/1991 | US5061328 Coating method to suppress porosity in Al-Li alloys |
| 10/29/1991 | US5061083 Temperature monitoring device and thermocouple assembly therefor |
| 10/29/1991 | CA1291400C Method of manufacturing extra-thick, high strength steel sheets |
| 10/29/1991 | CA1291332C Rotary hearth multi-chamber, multi-purpose furnace system |
| 10/23/1991 | EP0452561A2 Electric heating device |
| 10/22/1991 | CA1290940C Furnace for heat treatment in vacuo with cooling by a stream of gas |
| 10/20/1991 | CA2015020A1 Method and apparatus for inhibiting stress corrosion cracking |
| 10/17/1991 | WO1991015935A1 Method and device for surface hardening of rotation symmetrical parts through inductive heating by means of at least two different frequencies |
| 10/17/1991 | DE4011612A1 Verfahren und einrichtung zur oberflaechenhaertung rotationssymmetrischer teile durch induktive erwaermung mit hilfe wenigstens zweier unterschiedlicher frequenzen Method and device for surface rotationally symmetrical parts by inductive heating with the help of at least two different frequencies |
| 10/15/1991 | US5057164 In controlled atmosphere |
| 10/15/1991 | CA1290657C Method of directly softening rolled machine structural steels |
| 10/10/1991 | DE4019909A1 Rolled material cooling pipe - contains bushes increasing turbulence with lengthwise grooves offset in peripheral direction |
| 10/09/1991 | EP0451075A1 Device for induction heating of metal workpieces |
| 10/09/1991 | EP0451050A1 Process and equipment for thermal treatment with gas quenching |
| 10/09/1991 | CN1014269B Furnace for the heat treatment of work pieces |
| 10/09/1991 | CN1014268B Annealing furnace |
| 10/09/1991 | CN1014211B Method for producing roller chain with low-carbon low-alloy steel |
| 10/08/1991 | US5054748 Multi-chamber vacuum installation |
| 10/08/1991 | US5054746 Apparatus for hardening rails |
| 10/05/1991 | CA2039515A1 Method and installation for the thermal cure of objects with insertion in a gazeous mixture |
| 10/05/1991 | CA2039385A1 Helium based protective environment for non-continuous heat treatment of metals |
| 10/02/1991 | EP0449030A2 Process for annealing steel material |
| 10/02/1991 | EP0449003A2 Apparatus for cooling rolled strip |
| 10/02/1991 | DE4009868A1 Rolled strip cooler - with spray beams sliding across line of material travel at the cooling roller conveyor for close temp. tolerances |
| 10/01/1991 | US5052923 Oven for partial heat treatment of tools |
| 10/01/1991 | US5052661 Controlling heat treating furnaces |
| 10/01/1991 | CA1289998C Electric oven, namely for heat processes |
| 09/25/1991 | CN1054802A Low-alloy steel to resist dew point corrosion of sulphuric acid |
| 09/25/1991 | CN1014078B Process for heat treatment of metallic pieces by continous furnace and apparatus thereof |
| 09/25/1991 | CN1014066B Oxidation preventive coating for heating the blank plates of silicon steels |
| 09/18/1991 | EP0446425A1 Method and device for controlling and regulating the deformation behaviour of workpieces during their thermal treatment |
| 09/18/1991 | CN1054622A Nitrogen atmosphere gas-mfg. agent |
| 09/18/1991 | CN1013961B High temp. character of improved selected chromium-molybdenum improved alloy and method for soldable ability |
| 09/18/1991 | CN1013960B Anticracking coating material for parts with large section ratio and complex shape |
| 09/17/1991 | US5049207 Induction, wear resistance |
| 09/17/1991 | US5049185 Method and arrangement for supplying liquid to an oven |
| 09/12/1991 | DE4035155C1 Heat treatment plant for small parts - comprises continuous furnace having rotatable gp. of three baskets which pass through shaft |
| 09/12/1991 | DE4008102A1 Cutting-tool prodn. method - involves cutting insert with hard solder in vacuum chamber above hardening temp. |
| 09/12/1991 | DE4007257A1 Surface hardening - uses tungsten and inert gas burner to treat defined zones without heat loss |
| 09/11/1991 | EP0445699A2 Method of forming chilled layer and apparatus therefor |
| 09/11/1991 | CN1013881B Production of controllable atmosphere of nitrogen contg. co |
| 09/04/1991 | CN1013806B Roller for transpting steel matallurgical products moving in stove |
| 09/03/1991 | US5045126 Nitrogen flushing of furnace |
| 09/03/1991 | US5044611 Automatic installation for the forming and thermal treatment of circular pieces |
| 09/03/1991 | US5044422 Cryogenic processing of orthopedic implants |
| 09/03/1991 | CA1288413C Thickening systems for high water based functional fluids and the highwater based functional fluids containing these thickening systems |
| 08/28/1991 | EP0443304A2 Cooling device for a moving cylindrical object |
| 08/27/1991 | US5043027 Heating alloy in a salt bath for a set time; quickly cooling in a water bath |
| 08/21/1991 | EP0442382A2 Controlling heat treating furnaces |
| 08/21/1991 | CN1013587B Thermal treatment method for die of printed-wiring board |
| 08/20/1991 | US5041714 Workpiece processing arrangement |
| 08/20/1991 | US5040287 Heating equipment installation system |
| 08/14/1991 | EP0441766A1 Apparatus for hardening rails |
| 08/14/1991 | EP0441574A1 Skid member using Fe/Cr dispersion strengthened alloys |
| 08/14/1991 | EP0441573A1 Heat-resistant alloy |
| 08/14/1991 | CN2082955U Plasma arc surface intensification generating device |
| 08/08/1991 | WO1991011537A1 Method and device for thermomagnetic treatment of articles |
| 08/08/1991 | DE4102604A1 Controlled cooling of wide flat prod. - esp. for uniform cooling of hot steel strip |
| 08/07/1991 | EP0440437A2 Thermal spray material and its coated article excellent in high-temperature wear resistance and build-up resistance |
| 08/07/1991 | EP0439703A1 Method for improving the bond between a hollow tube and parts thereon |