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| Number | Title | Issue Date |
| 7357826 | Method and apparatus to monitor/detect nodularization in ductile iron The present invention is direct to a method/apparatus for verifying a nodularization process in a molten iron disposed within a ladle. The method includes the steps of: transferring the ladle with the molten iron to a nodularization area; adding an amount of magnesi... | 04/15/2008 |
| 6783570 | Method for determining the needed amount of structure modifying agent to be added to cast iron The present invention provides a possibility to evaluate cooling curves recorded in near-eutectic cast iron melts. The curves are evaluated by generated in the melt in the center of the sample to the melt as a function of time. This information is then used to ident... | 08/31/2004 |
| 5891213 | On-line production control of cast irons by measuring the surface tension of the base treated iron The surface tension of a sample quantity of molten iron from a batch of molten iron is determined and compared with the surface tension of the sample with the surface tensions of batches of molten iron that are known to solidify as respective different fo... | 04/06/1999 |
| 5888270 | Copper converting A process for converting a copper sulphide matte and/or a copper sulphide concentrate to blister copper is described which comprises the steps of adding the matte and/or concentrate together with a suitable flux to an agitated molten bath containing molte... | 03/30/1999 |
| 5724669 | Metal decontamination process and systems for accomplishing same The present invention provides for methods for on-line monitoring of a molten process phase to determine the extent of extraction of radioactive species from a waste metal contaminated with the radioactive species. The waste metal is mixed with an inorgan... | 03/03/1998 |
| 5373888 | Method for the production of ductile cast iron During production of ductile cast iron, controlling and correcting the composition of the cast iron melt, including extracting a sample from the melt, the mother melt, and adding an amount of an oxide, a sulphite or an oxy-sulphide with the ability to oxi... | 12/20/1994 |
| 5348567 | Decontamination method A method for decontamination of steel components contaminated with radioactive material comprises the steps: (a) providing a mass of material including: (i) a proportion of steel carrying radioactive material; and (ii) a mass of slag forming material; (b) melting t... | 09/20/1994 |
| 5337799 | Method for the production of compacted graphite cast iron A method relating to the production of cast iron castings with compacted graphite crystals. The method comprises controlling and correcting the composition of the cast iron melt and securing the necessary amount of structure modifying agent. A sample of t... | 08/16/1994 |
| 5328502 | Method for controlling and regulating the primary nucleation of iron melts A melt sample is taken in a sampling vessel which is in thermic equilibrium with the sample quantity prior to solidification commencing, the sampling vessel having been provided with at least one thermoelement and containing a determined and calibrated qu... | 07/12/1994 |
| 5226949 | Method and apparatus for removal of floating impurities on liquid A housing has a pair of chambers separated by a vertical wall. A hearth is on one side of the wall in the housing and is adjacent to an orifice which allows a stream of material, such as molten metal to pass from one chamber to the other. A gas is caused ... | 07/13/1993 |
| 5082044 | Method and apparatus for controlling the composition of a molten metal bath An apparatus has means for controlling the composition of a molten metal bath of various elements for providing a consistent molten metal product. The apparatus is automated and the addition of elements to a molten bath is automatically controlled. Also, ... | 01/21/1992 |
| 5057149 | Method and apparatus for introducing uniform quantities of a material into a metallurgical sample A method and apparatus for introducing an additive material into a metallurgical sample. In a preferred embodiment, the method and apparatus of the present invention comprises introducing a stabilizer, for example, tellurium and/or bismuth, into a metallu... | 10/15/1991 |
| 4401464 | Injection metallurgy method and equipment for its execution The invention relates to a method and equipment of producing with good reproducibility steel which is extremely free from slag inclusions, particularly steel with low sulphur content and thus very low contents of sulphidic slag inclusions, starting with a... | 08/30/1983 |
| 4378994 | Method for estimating geographical distribution of cohesive zone in blast furnace A method for estimating the geographical distribution of a cohesive zone in a blast furnace which is intermittently charged with an iron ore material to produce molten iron substantially in a continuous manner is disclosed. The method comprises altering t... | 04/05/1983 |
| 4317678 | Process for continuous casting of aluminum-deoxidized steel Calcium or a calcium-bearing material is added to an aluminum-deoxidized steel in an amount which is sufficient to establish a calcium concentration exceeding the aluminum content by a value greater than about 0.14.... | 03/02/1982 |
| 4290306 | Method and apparatus for probing into a refining furnace or the like for temperature measurement for sampling, or for both For sampling, and/or measuring the temperature of, the molten metal within a furnace such as a steel converter, a probe is inserted into the furnace through an opening formed at or in the adjacency of its bottom. An inert gas, either singly or in combinat... | 09/22/1981 |
| 4246026 | Manufacturing process of vermicular graphic cast-irons through double modification A two-stage method of making vermicular graphite cast iron in which a first alloy is introduced into the ladle into which the iron is cast and then the vermicular graphite level is measured. A second alloy of a compacting or anticompacting nature is then ... | 01/20/1981 |
| 4174965 | Process for the production of metal alloys A process involving a static mixer for the continuous production of metal alloys is such that molten metal is passed through a filter bed of loose particulate material exposed to atmospheric pressure. The alloying addition is made to the metal via a propo... | 11/20/1979 |
