Patents
Sitemap › C21 - Metallurgy of iron › C21D - Modifying the physical structure of ferrous metals; General devices for heat treatment of ferrous or non-ferrous metals or alloys; Making metal malleable by decarburisation, tempering, or other treatments › C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering
Patents for C21D 1 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (27,435)
11/1980
11/18/1980CA1089936A1 Induction heating apparatus for metallic sheet of various widths
11/13/1980WO1980002434A1 Surface hardening of metals by electric arc discharge
11/11/1980US4232853 Steel stock cooling apparatus
11/11/1980US4232852 Apparatus for control of the carburization of parts in a vacuum furnace
11/04/1980US4231812 Surface treatment of metal strip
11/04/1980US4231553 Apparatus for cooling rapidly moving rolled material
11/04/1980US4231382 Cooling strand for cooling small-section steel
10/1980
10/29/1980EP0018059A1 Apparatus for and method of heating and cooling metal products
10/28/1980CA1088579A2 Torsion bar and method of forming the same
10/21/1980US4229236 Stress relieving
10/14/1980US4227945 Method for preventing decarburization of steel materials
10/14/1980CA1087643A1 Torsion bar and method of forming the same
10/07/1980US4226108 Apparatus for cooling metal products
10/07/1980US4226106 Plants for treating rolled steel products
10/07/1980CA1087236A1 Electric slot furnace
10/07/1980CA1087107A1 Ultrafiltration or reverse osmosis treatment of emulsified oil metal working coolants
10/01/1980EP0016049A1 Process and device for manufacturing hardened surfaces by second fusion of a part comprising variable radius of curvature, in particular of cames of a came shaft in internal combustion machines
09/1980
09/30/1980US4225366 Recrystallization annealing
09/30/1980US4225365 Gears, bushings
09/30/1980CA1086623A1 Skid pipe insulation for steel mill reheating furnaces
09/16/1980US4222799 High-strength spring steel and its manufacturing process
09/16/1980US4222796 Heating to the insensitive portion of the intercritical annealing range, cooling
09/16/1980US4222554 Electric salt bath furnace
09/16/1980US4222429 Foundry process including heat treating of produced castings in formation sand
09/16/1980CA1085611A1 Method for enhancing the heating efficiency of continuous slab reheating furnaces
09/09/1980US4221972 Apparatus for the partial treatment of elongated articles by current intensive glow discharge
09/09/1980US4221947 Annealing of wire
09/09/1980US4221832 Coating with metal
09/02/1980US4220445 Fluid bed furnace and cover assembly for use thereon
09/02/1980CA1084823A1 Treatment of rolled steel products
09/02/1980CA1084822A1 Process for the controlled cooling of ferrous metal
08/1980
08/26/1980US4219528 Apparatus for generating a reducing atmosphere for heat-treating installations
08/26/1980US4219324 Process for treating metals using recycled gases
08/26/1980CA1084392A1 Methods for carburizing steel parts
08/26/1980CA1084263A1 Apparatus for heat treatment of material
08/19/1980CA1083774A1 Spray apparatus for continuous casting machine
08/05/1980CA1083022A1 Method and apparatus for cooling inner surface of metal pipe
08/05/1980CA1082955A1 Method and apparatus for improving the mechanical properties of butt welded tubular products
07/1980
07/29/1980US4215259 Surface hardening of metals using electric currents
07/29/1980US4214924 Treatment with a monoacetylenic alcohol
07/29/1980US4214868 Method of and an apparatus for soaking steel pieces
07/23/1980EP0013654A1 Process for the heat treatment of steel and for controlling said treatment; steel obtained thereby
07/23/1980EP0013331A1 Method for making profiles and the use of a fine grained steel for profiles
07/15/1980US4212344 Method of manufacturing an amorphous alloy
07/15/1980CA1081455A1 Method and apparatus for preheating scrap
07/09/1980EP0013230A1 Device for removing a fluid from the surface of a long and continuously moving product
07/09/1980EP0013063A1 Method of treating the surfaces of high carbon steel bodies
07/08/1980US4211584 Adding an acyclic hydrocarbon to the nitrogen or nitrogen-hydrogen atmosphere
07/08/1980US4211272 Cooling of ingots or castings
07/08/1980CA1081328A1 Process for heating metal strips
07/08/1980CA1080928A1 Twin belt system
07/01/1980US4210469 Use of lathe turnings of cast iron or steel scraps to produce reducing furnace atmosphere
07/01/1980US4210288 Cooling apparatus
06/1980
06/24/1980US4209366 Depositing a porous silicate, rinsing, annealing; formation of volatile carbon compound
06/24/1980US4209345 Machine for treating metal sheets
06/17/1980US4208224 Heat treatment processes utilizing H2 O additions
06/11/1980EP0012130A1 Apparatus for manufacturing of work pieces of fully hardenable material with areas of differing hardness, in particular flanged piston sleeves for fuel injection pumps
06/10/1980US4207065 Device for heating open melting baths, such as galvanizing baths, enameling baths, lead coating baths, metallic baths, glass baths, and the like
06/10/1980CA1079367A1 Direct-current electrical heat-treatment of continuous metal sheets in a protective atmosphere
06/10/1980CA1079066A1 Apparatus for cooling metal sections
06/03/1980US4206004 Process of pretreating cold-rolled steel sheet for annealing
06/03/1980US4205935 Continuous heating furnace for the heat treatment of small parts
06/03/1980CA1078607A1 Refractory insulation
05/1980
05/29/1980WO1980001083A1 Lower bainite alloy steel article and method of making same
05/27/1980US4204892 Heat-treating tubular steel sections
05/27/1980US4204880 High speed cooling of ingots
05/27/1980CA1078110A1 Process of manufacturing a steel strip by rolling, and strip obtained by said process
05/20/1980US4203958 Desorption by fluidized beds by air under vacuum prior to flushing with nitrogen effluent
05/20/1980US4203783 Process for improving the quality of steel sections
05/20/1980US4203579 Installation for tempering long cylindrical pieces in form and in thin layer
05/13/1980US4202710 Heat, wear and pitting resistance
05/13/1980US4202690 Setting and controlling desired redox potentials in gases
05/13/1980US4202661 Jet implement radiation furnace, method and apparatus
05/13/1980US4202537 Apparatus for annealing strip coils
05/13/1980CA1077378A1 Method of working steel machine parts including machining during quench cooling
05/13/1980CA1077265A1 Hover furnaces
05/06/1980US4201664 Ultrafiltration or reverse osmosis treatment of emulsified oil metal working coolants
04/1980
04/30/1980EP0010484A1 Improvement in the chromising of steel in the gaseous phase
04/29/1980US4200805 Multicathode thermochemical processing oven
04/29/1980CA1076463A1 Producing rolled steel products
04/22/1980US4198994 Device for mounting rollers in a machine for treating metal sheets or the like
04/22/1980CA1076019A1 Process for removing waste water from hardening and galvanizing shops
04/16/1980EP0009563A1 Method for remelt hardening the surface of a workpiece rotating about its revolving axis, the surface being at a variable distance from the revolving axis
04/16/1980EP0009497A1 Spinning rotor made from steel for open end spinning machines
04/15/1980US4198679 Method and device for discriminating thermal effect of phase transformation of metals and alloys in the process of their cooling
04/08/1980CA1075320A1 Apparatus for and method of induction heating of metal plates with holes
04/08/1980CA1075050A1 Cooling metal products
04/02/1980EP0009050A1 High strength steel and process of making.
04/01/1980US4196025 Manganese-carbon
04/01/1980CA1074673A1 Method and means for hardening and hot-zincing iron and steel products
03/1980
03/25/1980US4194728 Apparatus for the inductive hardening by quenching of bearing surfaces of a crankshaft
03/18/1980US4193824 Method for manufacturing steel spring leaves
03/18/1980CA1073787A1 Method and apparatus for heating a workpiece
03/11/1980CA1073325A1 Atmosphere compositions and methods of using same for surface treating ferrous metals
03/11/1980CA1073321A1 Alloy steel
03/05/1980EP0008423A1 Apparatus for the thermal treatment of an elongated metal sheet
03/04/1980US4191601 Heat treatment, aging
03/04/1980US4191600 Immersing in an aqueous bath
03/04/1980US4191599 Carburization followed by rapid quenching, gradients0
03/04/1980US4191598 Jet recirculation method for vacuum carburizing
1 ... 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275