| Patents for C22C 33 - Making ferrous alloys (11,268) |
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| 03/28/1989 | US4816216 Interdiffusion resistant Fe--Ni alloys having improved glass sealing |
| 03/23/1989 | WO1989002477A1 Method of charging ore in melt-reduction |
| 03/22/1989 | CN1031864A Steel bonded carbide and its fabrication technology |
| 03/22/1989 | CN1031863A Process for adding selenium to molten steel |
| 03/07/1989 | US4810850 Method of arc spraing and filler wire for producing a coating which is highly resistant to mechanical and/or chemical wear |
| 03/07/1989 | CA1250715A1 Thermal pulverisation materials |
| 02/28/1989 | US4808226 Bearings fabricated from rapidly solidified powder and method |
| 02/28/1989 | US4808224 Method of consolidating FeNdB magnets |
| 02/28/1989 | US4808220 Blowing oxygen in blast furnace |
| 02/28/1989 | CA1250453A1 Process for the production of cast iron with vermicular graphite |
| 02/23/1989 | WO1989001532A1 Process for melt reduction of cr starting material and melt reduction furnace |
| 02/22/1989 | EP0303809A1 Method for manufacturing cams by powder metallurgy |
| 02/22/1989 | CN1031259A Method of smelting ferrosilicon |
| 02/21/1989 | US4806155 Calcium chloride-free; calcium oxide and then hydroxide formation and removal by water washing |
| 02/14/1989 | US4804409 Alloy steel powder for powder metallurgy |
| 02/08/1989 | EP0302803A2 Method of making high melting point alloys |
| 02/08/1989 | EP0302430A1 Alloyed steel powder for powder metallurgy |
| 02/08/1989 | CN1030945A Rare-earth grey cast iron exhaust water pipe |
| 02/07/1989 | US4802918 Highly pure refined and carburized steel having low amount of oxygen, sulfur, phosphorus |
| 02/07/1989 | US4802915 Process for producing finely divided spherical metal powders containing an iron group metal and a readily oxidizable metal |
| 01/25/1989 | CN1030613A Inhibitor of globular or nodular graphites in creeping graphite cast iron and its use method |
| 01/24/1989 | CA1249214A1 Radiant surface combustion burner |
| 01/19/1989 | DE3822874A1 Metal powder and process therefor |
| 01/18/1989 | EP0299590A2 Method for producing dysprosium-iron-boron alloy powder |
| 01/10/1989 | US4796575 Wear resistant slide member made of iron-base sintered alloy |
| 01/03/1989 | US4795313 Titanium carbide and chromium, cobalt, molybdenum, nickel, copper and iron alloy |
| 12/28/1988 | EP0296439A2 Austenitic steel for valves of internal combustion engines |
| 12/20/1988 | US4792351 Forming aqueous solution of metals, forming solid material, reducing |
| 12/14/1988 | EP0294371A1 Activator mixture for increasing the strength of iron alloys. |
| 12/14/1988 | CN88103047A Porous metal bodies |
| 12/13/1988 | US4790875 Carbon, silicon, manganese, chromium, molybdenum, phosphoros, nickel and iron |
| 11/30/1988 | EP0293122A2 Porous metal bodies |
| 11/22/1988 | US4786451 Method of manufacturing a metallurgical addition agent |
| 11/22/1988 | US4786319 Proces for the production of rare earth metals and alloys |
| 11/03/1988 | WO1988008459A1 Powder metallurgy process for producing steel articles |
| 11/01/1988 | CA1243860A1 Method of producing boron alloy and a product produced by the method |
| 11/01/1988 | CA1243843A1 Apparatus and method for maintaining the temperature of molten metal |
| 10/25/1988 | US4780139 Tool steel |
| 10/18/1988 | US4778650 Method for the manufacture of an object of a powdered material by isostatic pressing |
| 10/18/1988 | US4778522 Wear resistant iron-base sintered alloy |
| 10/12/1988 | CN87104138A Vermiculating agent for production of vermicular iron and its process |
| 09/27/1988 | US4773931 Spindle ferromagnetic alloy particles |
| 09/22/1988 | WO1988007093A1 Cold work steel |
| 09/21/1988 | EP0283464A2 Process for manufacturing a sintered work piece |
| 09/20/1988 | US4772316 Process for the reduction of iron-containing chrome ores |
| 09/20/1988 | US4772315 Hydrometallurgical process for producing finely divided spherical maraging steel powders containing readily oxidizable alloying elements |
| 09/14/1988 | EP0281796A1 Method of producing affined ferromanganese |
| 09/13/1988 | US4770703 Dispersed and matrix phases; resistant to stress, cracking, corrosion |
| 09/07/1988 | EP0280874A1 Method for the manufacture of an object from powdered material by isostatic pressing |
| 09/07/1988 | EP0187751B1 Powder mixture free of segregation |
| 09/07/1988 | CN87101615A Multielement modificator |
| 09/06/1988 | US4769212 Process for producing metallic sintered parts |
| 09/06/1988 | US4769071 Two-step infiltration in a single furnace run |
| 09/06/1988 | CA1241556A1 Tin-containing ferrous composite powder and method of producing same and tin-containing sintered magnetic material |
| 08/31/1988 | CN87100046A Incubation agent for processing molten cast-iron |
| 08/30/1988 | US4767456 Corrosion and wear resistant metal alloy having high hot hardness and toughness |
| 08/30/1988 | US4767455 Process for the preparation of pure alloys based on rare earths and transition metals by metallothermy |
| 08/25/1988 | DE3704473A1 Valve material for charge cycle valves |
| 08/23/1988 | US4765950 Molding powdered material and binders under heat and pressure; non-cracking |
| 08/23/1988 | US4765836 Wear and corrosion resistant articles made from pm alloyed irons |
| 08/16/1988 | US4764209 Melting consumable electrodes of metals; molding and casting |
| 08/16/1988 | CA1240537A1 Sintered stainless steel and production process therefor |
| 08/11/1988 | WO1988005829A1 Process for producing low-carbon ferrochromium |
| 08/10/1988 | EP0277239A1 Abrasion-resistant sintered alloy and process for its production |
| 08/10/1988 | CN87107197A Process and apparatus for recovering metal and metal alloy |
| 08/09/1988 | US4762555 Process for the production of nodular cast iron |
| 07/28/1988 | DE3742192A1 Method of manufacturing a pre-workpiece for one-part current contact nozzles with melting-off additional wire |
| 07/27/1988 | EP0275475A1 Tool steel |
| 07/20/1988 | EP0274542A1 Alloy steel powder for powder metallurgy |
| 07/20/1988 | CN86108775A Activator mixture for increasing strength of iron alloys |
| 07/20/1988 | CN86108736A Binder for press-forming inoculating block |
| 07/19/1988 | US4758406 Molybdenum addition agent and process for its production |
| 07/19/1988 | US4758272 Porous metal bodies |
| 07/12/1988 | US4756880 Radiant heat vaporizing injector |
| 07/06/1988 | EP0273835A1 Metallothermal process for the manufacture of pure alloys based on rare earth metals and transition metals |
| 07/06/1988 | CN86108485A Compound modification agent for white cast iron of cr 26 series |
| 07/06/1988 | CN85106684B Hot alumimized ferritic malleable cast iron-low temp. graphitization technique |
| 07/05/1988 | US4755222 Sintered mixture of powders of high speed steel and unalloyed or low alloy iron containing carbon; high dimensional accuracy |
| 06/30/1988 | WO1988004697A1 Activator mixture for increasing the strength of iron alloys |
| 06/29/1988 | EP0272788A1 A method of making wear resistant gray cast iron |
| 06/22/1988 | EP0272250A1 Process for the production of neodym alloys |
| 06/22/1988 | CN86108225A Powder delivering device for rare-earth alloys by injection method |
| 06/21/1988 | CA1238211A1 Sintered stainless steel and production process therefor |
| 06/15/1988 | EP0271238A2 Wear and corrosion resistant alloy articles |
| 06/14/1988 | CA1237920A1 Wear-resistant sintered alloy |
| 06/14/1988 | CA1237898A1 Production of tool steels using chemically prepared v.sub.2o.sub.3 as a vanadium additive |
| 06/14/1988 | CA1237897A1 Production of alloy steels using chemically prepared v.sub.2o.sub.3 as a vanadium additive |
| 06/07/1988 | US4749549 Gray cast iron inoculant |
| 06/02/1988 | WO1988003961A1 High density sintered ferrous alloys |
| 06/01/1988 | EP0268679A1 Material for alloying a metal with vanadium |
| 05/24/1988 | CA1237122A1 Rock bits having metallurgically bonded cutter inserts |
| 05/18/1988 | CN87107202A Recovering method and equipment for metal and alloy |
| 05/18/1988 | CN87105171A Technology for the production of malleable cast iron using a substitute alloy for bismuth |
| 05/17/1988 | CA1236713A1 Dual-phase stainless steel with improved resistance to corrosion by nitric acid |
| 05/17/1988 | CA1236712A1 Austenitic stainless steel with improved resistance to corrosion by nitric acid |
| 05/17/1988 | CA1236710A1 Dental composition mixture |
| 05/11/1988 | EP0266936A1 Powdered metal part |
| 05/11/1988 | EP0266935A1 Powdered metal valve seat insert |
| 05/10/1988 | US4743425 Method of producing ferrous sintered alloys with superior abrasion resistance |
| 05/05/1988 | DE3735966A1 Process for winning metals or metal alloys and also plant for carrying out the process |