| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 02/13/1979 | CA1048266A1 Wire driving apparatus |
| 02/06/1979 | CA1047900A1 Method for producing large diameter steel pipes |
| 01/30/1979 | US4137104 As-rolled steel plate having improved low temperature toughness and production thereof |
| 01/30/1979 | US4136544 Cooling tubes for wire stocks |
| 01/23/1979 | US4135704 Method and apparatus for heat treatment of material to be worked on, especially of aluminum alloys or magnesium alloys |
| 01/23/1979 | CA1047122A1 Method of inductively heating and quench hardening camshafts |
| 01/16/1979 | CA1046589A1 Method for removing brittleness and stresses from welded steel pipes |
| 01/09/1979 | US4133634 Steel strip preheating method |
| 01/09/1979 | CA1045957A1 High strength steel rod of large gage |
| 01/02/1979 | CA1045527A1 Method and apparatus for forming and treating bundles of steel rods |
| 01/02/1979 | CA1045525A2 Process for coating wire |
| 01/02/1979 | CA1045420A1 Method of producing low carbon tin-mill gage steel without annealing border |
| 12/26/1978 | CA1045008A1 Process and apparatus for cooling hot rolled steel rod |
| 12/19/1978 | CA1044578A1 Process and apparatus for controlled cooling hot rolled steel rod in direct sequence with rod mill |
| 12/12/1978 | CA1044169A1 Roller conveyor |
| 12/12/1978 | CA1044123A1 Cold rolled steel strip |
| 12/05/1978 | CA1043674A1 Method of producing soft thin steel sheet by continuous annealing |
| 12/05/1978 | CA1043562A1 Apparatus for cooling strip-like material |
| 11/28/1978 | US4127429 Forsterite insulating films formed on surface of a grain-oriented silicon steel sheet having a high magnetic induction and a method of forming the same |
| 11/21/1978 | US4126492 Brake disc and process for producing the same |
| 11/14/1978 | US4125416 Method for producing steel strip or steel sheet containing carbide and nitride forming elements |
| 11/14/1978 | US4125365 Roll through billet heater |
| 11/14/1978 | US4125364 High velocity billet heater |
| 11/14/1978 | US4124932 Prequench cooling for galvanized tubing |
| 11/14/1978 | CA1042324A1 Method of heat-treatment of welded pipe and apparatus therefor |
| 11/07/1978 | US4124416 Voltage |
| 11/07/1978 | US4124415 Process for heating metal strips, in particular non-ferrous metal strips |
| 11/07/1978 | CA1041884A1 Method for enhancing the drawability of low manganese steel strip |
| 11/07/1978 | CA1041883A1 Method for producing a high tensile strength and high toughness bend pipe |
| 11/07/1978 | CA1041881A1 Coated steel product and process of producing the same |
| 10/31/1978 | US4123644 Device for inductively heating cylindrical surfaces |
| 10/31/1978 | US4123642 Apparatus for induction hardening gear teeth |
| 10/31/1978 | US4123301 Method for quench hardening steel casings |
| 10/31/1978 | US4123298 Post decarburization anneal for cube-on-edge oriented silicon steel |
| 10/31/1978 | US4123296 Pearlite structure |
| 10/24/1978 | CA1040986A1 Method for heat treatment of high-toughness weld metals |
| 10/24/1978 | CA1040985A1 Method of and apparatus for patenting wire |
| 10/17/1978 | US4120642 Method for heating ingot in soaking pit |
| 10/17/1978 | US4120455 Apparatus for cooling metal sections |
| 10/17/1978 | US4120187 Forming curved segments from metal plates |
| 10/17/1978 | CA1040516A1 Method and arrangmeent for agitating and controlling the temperature of baths, particularly melts for heat treating metallic articles |
| 10/17/1978 | CA1040460A1 Low-oxygen, silicon-bearing lamination steel |
| 10/10/1978 | US4119109 Apparatus for treating strip |
| 10/03/1978 | US4118617 Process and apparatus for continuous heat treatment of metallic wires and bands |
| 10/03/1978 | CA1039630A1 Strengthened metal pipe and process for making same |
| 09/26/1978 | US4117295 Apparatus for annealing of wire |
| 09/26/1978 | US4116716 Immersion cooling apparatus for hot metal pipes |
| 09/26/1978 | US4116422 Wire annealing apparatus |
| 09/26/1978 | US4116324 Loading device |
| 09/19/1978 | US4115682 Welding of glassy metallic materials |
| 09/19/1978 | US4115675 Induction heating method of steel pipe |
| 09/19/1978 | US4115160 Electromagnetic silicon steel from thin castings |
| 09/19/1978 | CA1038733A1 In-line heat treatment of hot-rolled rod |
| 09/19/1978 | CA1038732A1 Method for producing a killed steel wire rod |
| 09/19/1978 | CA1038653A2 Heat-treating method |
| 09/12/1978 | US4112812 Heat-treated article |
| 09/05/1978 | US4111644 Rotary hearth furnace with preheat conveyor |
| 08/29/1978 | US4110092 Method of apparatus for cooling inner surface of metal pipe |
| 08/29/1978 | CA1037322A1 Heat treating and galvanizing system |
| 08/22/1978 | US4108695 Steel wire |
| 08/22/1978 | US4108692 Rock bit roller cutter and method therefor |
| 08/22/1978 | CA1036915A1 Continuous carburizing method |
| 08/22/1978 | CA1036914A1 Plastically deformed hardened steel parts and method of forming same |
| 08/15/1978 | US4106957 High carbon steel wire or cord for vehicle tires |
| 08/15/1978 | US4106757 Hover furnaces |
| 08/15/1978 | US4106519 Vane-type nozzle assembly |
| 08/15/1978 | US4106319 Apparatus for hot-rolling non-ferrous metals |
| 08/08/1978 | USRE29726 Method of coating carbon steel |
| 08/08/1978 | US4105474 Process for producing a high tension steel sheet product having an excellent low-temperature toughness with a yield point of 40 kg/mm2 or higher |
| 08/08/1978 | US4105398 Continuous production furnace to heat ring-shaped workpieces |
| 08/01/1978 | US4103880 Apparatus for heat treating drill blanks |
| 07/25/1978 | US4102713 Silicon steel and processing therefore |
| 07/25/1978 | US4102711 Method of producing a tube of ultra-high strength steel having remarkably improved ductility and toughness |
| 07/11/1978 | US4100387 Apparatus for the inductive heating of workpieces especially for the heating of cam shafts |
| 07/11/1978 | US4099996 Process for heat-treating the head of railroad rail |
| 07/11/1978 | US4099992 Tubular products and methods of making the same |
| 07/04/1978 | US4098624 Heat treatment of metals |
| 06/20/1978 | US4096000 Magnesium oxide and boron oxide |
| 06/20/1978 | US4095544 Heat treatment of cold-formed cup |
| 06/13/1978 | US4094707 Making withdrawal rollers for ingots |
| 06/13/1978 | US4094086 Adjusting device for double-barrelled guns |
| 06/06/1978 | US4093839 Apparatus and method for inductively heating metallic tubing having an upset portion |
| 05/23/1978 | US4091253 Applying a hard facing to an iron or steel former |
| 05/23/1978 | US4090699 Apparatus and method of circulating a gas through coils of very long tubing during a heat treatment |
| 05/23/1978 | US4090697 Apparatus and method for treating wire |
| 05/23/1978 | US4090622 Rotary retort furnace |
| 05/09/1978 | US4088513 Method for heating a silicon-containing steel slab in a walking-beam type heating furnace |
| 05/09/1978 | US4088439 Tangentially gas fired muffle |
| 05/09/1978 | US4088309 Cooling device for slabs with slab-tilting devices for turning the rolled stock |
| 05/02/1978 | US4087593 Welding tubular shaft of alloy steel to universal joint, heat treatment |
| 05/02/1978 | US4087289 Anti-vibration steel material and a production method therefor |
| 05/02/1978 | US4087238 Method for enhancing the heating efficiency of continuous slab reheating furnaces |
| 05/02/1978 | CA1030342A1 Cooling apparatus for wire |
| 04/25/1978 | US4086464 Resistance heating device with improved workpiece feeding mechanism |
| 04/25/1978 | US4085922 Method and apparatus for continuously measuring the annealing level on wires or strips |
| 04/18/1978 | US4084797 Device intended for controlled cooling or wire, especially steel wire |
| 04/04/1978 | US4082577 Process for the heat treatment of steel |
| 04/04/1978 | US4082100 Apparatus for cooling hot slabs |
| 03/28/1978 | US4081296 Direct-current electrical heat-treatment of continuous metal sheets in a protective atmosphere |
| 03/21/1978 | US4079921 Apparatus and method for continuous treatment of metal coils or the like |