81 |
‘Kazakhstanskiy’ alloy for steel deoxidation and alloying |
US12937910 |
2008-09-18 |
US08795587B2 |
2014-08-05 |
Nursultan Abishevich Nazarbaev; Vladimir Sergeevich Shkolnik; Abdurassul Aldashevich Zharmenov; Manat Zhaksybergenovich Tolymbekov; Sailaubay Omarovich Baisanov |
Ferrous metallurgy for producing an alloy for reducing, doping and modifying steel is disclosed. The quality of the steel treated with the inventive alloy is improved owing to the deep reduction and modification of non-metallic impurities and the simultaneous microalloying of steel with barium, titanium and vanadium. Barium, titanium and vanadium are added into the inventive alloy, which contains aluminum, silicon, calcium, carbon and iron, with the following component ratio, in mass %: 45.0-63.0 silicon, 10.0-25.0 aluminum, 1.0-10.0 calcium, 1.0-10.0 barium, 0.3-5.0 vanadium, 1.0-10.0 titanium, 0.1-1.0 carbon, the rest being iron. |
82 |
Ferrophosphorus refining process |
US31679 |
1993-03-15 |
US5362440A |
1994-11-08 |
Deepak Madan; Young Lee; Alan FitzGibbon; Roland Gamroth |
The ferrophosphorus refining method entails forming a ferrophosphorus melt and adding an oxidizing agent to the melt to oxidize the impurities in the melt. The oxidized impurities then rise to the top of the melt and either go into the slag or escape in a gaseous forte. The slag is removed and a refined ferrophosphorus is recovered. Suitable oxidizing agents include solids such as ferrous oxide (Fe.sub.2 O.sub.3), ferric oxide (Fe.sub.3 O.sub.4), ferrous-ferric oxide (FeO), mill scale, limestone, dolomitic limestone, lime and any alkalide carbonate; and gaseous oxidizing agents such as oxygen, air and mixtures thereof. |
83 |
Material for refining steel of multi-purpose application |
US603727 |
1990-11-09 |
US5037609A |
1991-08-06 |
Anatoly Y. Nakonechny; Alexandr J. Zaitsev; Manat Z. Tolymbekov; Jury F. Vyatkin; Vasily S. Kolpakov |
The claimed material for refining steel of multi-purpose application contains the following components in the following proportion, % by mass:______________________________________ aluminium 30-40 silicon 35-25 calcium 5-15 magnesium 7-5 carbon 20-10 iron the balance. ______________________________________ |
84 |
|
US43440374 |
1974-01-18 |
US3905809B1 |
1987-08-18 |
|
|
85 |
Addition agent for adding vanadium to iron base alloys |
US460871 |
1983-01-25 |
US4483710A |
1984-11-20 |
Gloria M. Faulring; Alan Fitzgibbon; Anthony F. Nasiadka |
Addition of vanadium to molten iron-base alloys using an agglomerated mixture of V.sub.2 O.sub.3 and calcium-bearing reducing agent. The mixture is added to the molten alloy by pneumatic injection with a carrier gas such as argon or nitrogen. |
86 |
Boron alloying additive for continuously casting boron steel |
US279079 |
1981-06-30 |
US4440568A |
1984-04-03 |
John O. Staggers; Samir K. Banerji; Michael J. Lalich |
A boron alloying additive for continuous casting of boron steel having the desired hardenability without tundish nozzle blockage. The additive comprises 0.25-3.0% boron, 2.5-40% rare earth metals (RE), 6-60% titanium, and the balance iron. The additive may also contain silicon, calcium, manganese, and zirconium. In the additive the weight ratios of Ti to B and (Ti+RE) to B are 20:1-60:1 and 30:1-90:1, respectively. |
87 |
Addition agents for iron-base alloys |
US249510 |
1981-03-31 |
US4373948A |
1983-02-15 |
Gloria M. Faulring; Alan Fitzgibbon; Frank Slish |
Addition of a metal selected from niobium, molybdenum, chromium and tungsten to molten iron-base alloys using an agglomerated mixture of a selected metal oxide and calcium-bearing reducing agent. |
88 |
Process for purification of manganese alloys |
US52968274 |
1974-12-04 |
US3926623A |
1975-12-16 |
KEYSER NAAMAN H; MERTDOGAN AKGUN |
Metallic materials, such as manganese containing materials, which contain a residual impurity, such as lead are purified by subjecting a melt of the material to a gaseous blow with a carrier gas, which is generally non-reactive with melt material and which removes the impurity through evaporation.
|
89 |
Process and alloy for making ductile iron |
US18967071 |
1971-10-15 |
US3799767A |
1974-03-26 |
MALIZIO A; RICE M; BROOKS H |
A PROCESS FOR PRODUCING DUCTILE IRON COMPRISING ADDING TO A BATH OF LOW-SULFUR CAST IRON, A MATERIAL CONTAINING AT LEAST TWO GRAPHITE-NODULARIZING ELEMENTS. THE ADDITIVE MATERIAL CONTAINS EACH NODULARIZING ELEMENT IN RELATIVELY LOW CONCENTRATIONS SO THAT AFTER DISSOLUTION IN THE BATH THE CONCENTRATION OF NODULARIZING ELEMENTS REMAINING IS SUFFICIENT TO PRODUCE THE DESIRED STRUCTURE, BUT THE CONCENTRATION OF ANY ONE ELEMENT IS, OF ITSELF, INSUFFICIENT TO PRODUCE NODULAR (SPHEROIDAL) GRAPHITE.
|
90 |
Nodular graphite cast iron containing calcium,rare earth metals and magnesium and a method for its production |
US3726670D |
1970-11-25 |
US3726670A |
1973-04-10 |
KUSAKA K |
NODULAR GRAPHITE CAST IRON CONTAINING CARBON IN THE RANGE OF FROM 3.2 TO 4.2% BY WEIGHT, SILICON IN THE AMOUNT OF FROM 1 TO 4.5% BY WEIGHT AND IN WHICH THE PERCENT CARBON PLUS ONE-THIRD THE PERCENT SILICON IS EQUAL TO OR GREATER THAN 4.0% IS PROVIDED. THE NODULAR GRAPHITE CAST IRON IS CHARACTERIZED BY CONTENTS OF RARE EARTH METAL (R) 0.010-0.12% BY WEIGHT, MAGNESIUM (MG) 0.006-0.040% BY WEIGHT AND CALCIUM (CA) 0.002-0.025% BY WEIGHT, AND HAVING THE CONTENT RATIO OF RARE EARTH METAL AND MAGNESIUM WITHIN THE RANGE R/MGV1.0-4.0. THE NODULAR GRAPHITE CAST IRON IS PRODUCED BY ADDING TO A MOLTEN IRON HAVING A SULPHUR CONTENT OF LESS THAN 0.03% BY WEIGHT, A NODULAR GRAPHITE CAST IRON ADDITIVE CONSISTING ESSENTIALLY OF 10 TO 30% BY WEIGHT OF MAGNESIUM FLUORIDE, FROM 10 TO 30% BY WEIGHT RARE EARTH METAL FLUORIDE, AND FROM 40 TO 80% BY WEIGHT CALCIUM-SILICON.
|
91 |
Process for the production of composite ingots of magnesium containing prealloys |
US3604494D |
1967-10-02 |
US3604494A |
1971-09-14 |
TRAGER HEINER; KAUNE ALBERT; MUHLBERGER HORST; REIFFERSCHEID KARL JOSEF; GRIMM LUDWIG; WAGNER GERHARD; HASLINGER HEINRICH |
Compact, magnesium containing prealloy ingots are produced by casting a molten magnesium containing prealloy around prefabricated solid pieces of a prealloy having the same or similar composition as that of the molten prealloy. The resulting compact prealloy ingots are used in the production of cast iron with spheroidal graphite.
|
92 |
Process for the manufacture of ferrosilicon |
US3431103D |
1966-03-02 |
US3431103A |
1969-03-04 |
QUERENGASSER HUGO; KRAUSE JOHANNES; FRANK KLAUS; CZISKA JOHANN |
|
93 |
Process for making strontium-bearing ferrosilicon |
US46458165 |
1965-06-16 |
US3374086A |
1968-03-19 |
GOEHRING JR HENRY G |
|
94 |
Prealloy for the treatment of iron and steel melts |
US30661363 |
1963-09-04 |
US3328164A |
1967-06-27 |
HORST MUHLBERGER; ALFRED TRAGER HEINER |
|
95 |
Inoculating alloys consisting of si-al-ca-ba-mn-zr-fe |
US31950563 |
1963-10-28 |
US3272623A |
1966-09-13 |
WALTER CRAFTS; WIESER PETER F |
|
96 |
Ferrochromium alloys |
US85805959 |
1959-12-08 |
US3024104A |
1962-03-06 |
BRENNAN JOSEPH H |
|
97 |
Process for the production of nodular iron |
US42314554 |
1954-04-14 |
US2792300A |
1957-05-14 |
LIVINGSTON JOHN A |
|
98 |
Vanadium-carbon-iron alloy |
US40523754 |
1954-01-20 |
US2791501A |
1957-05-07 |
BRENNAN JOSEPH H |
|
99 |
Addition agent and process for producing magnesium-containing cast iron |
US33299853 |
1953-01-23 |
US2762705A |
1956-09-11 |
MCLELLAN SPEAR WARREN; TRIMBLE EASH JOHN; PAUL GAGNEBIN ALBERT |
|
100 |
Prealloy for the production of cast iron and method for producing the prealloy |
US10544249 |
1949-07-18 |
US2603563A |
1952-07-15 |
CROME LESTER C |
|