Class / Patent application number | Description | Number of patent applications / Date published |
148543000 | Containing at least 1.5 percent carbon | 16 |
20090007995 | METHOD FOR IMPROVING CREEP RESISTANCE AND LOW CYCLE FATIGUE PROPERTIES OF PRESSURE-CONTAINING COMPONENTS - A method by which high temperature properties of a ductile iron alloy, including creep and LCF properties, can be increased for pressure-containing components that are subject to creep and low cycle fatigue. The method comprises modifying the ductile iron alloy to contain 0.4 to 0.8 weight percent molybdenum. A casting of the modified ductile iron alloy is produced and then annealed at a temperature of at least 725° C. for not less than five hours to eliminate carbides and/or stabilize pearlite in the casting. The annealed casting of the modified ductile iron alloy exhibits improved creep resistance and low cycle fatigue properties in comparison to an identical casting of a ductile iron alloy that does not contain molybdenum. | 01-08-2009 |
20100154942 | Mechanism of Structural Formation For Metallic Glass Based Composites with Enhanced Ductility - An aspect of the present disclosure relates to an alloy composition, which may include 52 atomic percent to 68 atomic percent iron, 13 to 21 atomic percent nickel, 2 to 12 atomic percent cobalt, 10 to 19 atomic percent boron, optionally 1 to 5 atomic percent carbon, and optionally 0.3 to 16 atomic percent silicon. The alloy may include 5 to 95% by volume of one or more spinodal microconstituents, wherein the microconstituents exhibit a length scale less than 50 nm in a glass matrix. | 06-24-2010 |
20130146185 | High-Carbon Iron-Based Amorphous Alloy Using Molten Pig Iron and Method of Manufacturing the Same - Provided is an iron-based amorphous alloy and a method of manufacturing the same. | 06-13-2013 |
20140007991 | TOUGH IRON-BASED BULK METALLIC GLASS ALLOYS - A family of iron-based, phosphor-containing bulk metallic glasses having excellent processibitity and toughness, methods for forming such alloys, and processes for manufacturing articles therefrom are provided. The inventive iron-based alloy is based on the observation that by very tightly controlling the composition of the metalloid moiety of the Fe-based, P-containing bulk metallic glass alloys it is possible to obtain highly processable alloys with surprisingly low shear modulus and high toughness. | 01-09-2014 |
20140048185 | METHOD OF HEAT TREATING A CAST IRON, IN PARTICULAR A NODULAR CAST IRON - The invention relates to a method of heat treating a cast iron having graphite particles, in particular a cast iron having graphite nodules with a substantially spherical geometry. The method comprises the step of subjecting the cast iron to a first austenitizing temperature, in order to obtain a cast iron having an austenite matrix with a substantially homogeneous carbon content. Subsequently, at least part of the cast iron is subjected to at least a second, different austenitizing temperature in order to change, in at least part of the cast iron, the carbon concentration in a part of the matrix surrounding the (spherical) geometry of the graphite particles. The method yields improved controllability on strength properties characteristics for cast irons including malleable irons, in particular for ductile iron. | 02-20-2014 |
20140352851 | SPHEROIDAL GRAPHITE CAST IRON HAVING EXCELLENT STRENGTH AND TOUGHNESS AND ITS PRODUCTION METHOD - A spheroidal graphite cast iron having (a) a composition comprising by mass 3.4-4% of C, 1.9-2.8% of Si, 0.02-0.06% of Mg, 0.2-1% of Mn, 0.2-2% of Cu, 0-0.1% of Sn, 0.85-3% of (Mn+Cu+10×Sn), 0.05% or less of P, and 0.02% or less of S, the balance being Fe and inevitable impurities, and (b) a duplex matrix structure comprising by area 2-40% of fine ferrite phases and 60-98% of fine pearlite phases, the maximum length of the ferrite phases being 300 μm or less, and (c) the pearlite phases being formed around graphite particles dispersed in the duplex matrix structure. | 12-04-2014 |
148544000 | With working | 7 |
20110017364 | HEAVY AUSTEMPERED DUCTILE IRON COMPONENTS - A component for wind turbines includes cast austempered ductile iron containing about 3.0 to about 3.8 weight percent carbon, about 1.9 to about 2.8 weight percent silicon, up to about 0.3 weight percent manganese, up to about 0.8 weight percent copper, up to about 2.0 weight percent nickel, up to about 0.3 weight percent molybdenum, about 0.03 to about 0.06 weight percent magnesium, less than about 0.05 weight percent chromium, less than about 0.02 weight percent vanadium, and less than about 0.01 weight percent sulfur. The component is preferably a drive shaft or gearbox component having a mass of more than about 3 tons. A method of manufacturing the component is also provided. | 01-27-2011 |
20110061773 | PRESS ROLLER ANNULAR CASING AND METHOD - A method for the production of an annular casing for the press rollers of roller presses for the pressure comminution of particulate material, the outer surface of which casing always has a high degree of hardness and consequently a high wear-resisting capability, but the radially inner region of which casing has a lower degree of hardness to avoid casing ruptures. The annular casing is cast of nodular cast iron with at least the alloying elements Ni and Mo. The cast body is given a bainitic structure with residual austenite by a subsequent heat treatment followed by controlled cooling. The outer surface is constantly re-hardened during use via pressure loading such that martensite is constantly formed in boundary layers of the outer surface. | 03-17-2011 |
20130118651 | ALLOY CAST IRON AND MANUFACTURING METHOD OF VANE USING THE SAME - An alloy cast iron, a method of manufacturing a vane for a rotary compressor, and a vane for a rotary compressor using the alloy cast iron are disclosed. The alloy cast iron according to one exemplary embodiment includes, by weight, 3.2 to 3.8% carbon, 2.0 to 2.6% silicon, 0.5 to 1.0% Manganese, 0.2 to 0.6% chrome, 0.1 to 0.6% molybdenum, 0.04 to 0.15% titanium, less than 0.3% phosphorus, less than 0.1% sulphur, and the rest percentage of iron and foreign materials, wherein the alloy cast iron includes a martensitic matrix structure, flake graphite, and 15 to 30% carbide in volume ratio. | 05-16-2013 |
20130118652 | ALLOY CAST IRON AND MANUFACTURING METHOD OF ROLLING PISTON USING THE SAME - An alloy cast iron, and a method of manufacturing a rolling piston for a rotary compressor includes, by weight, 3.0˜3.5% carbon (C), 2.2˜2.4% silicon (Si), 0.5˜1.0% manganese (Mn), 0.1˜0.3% phosphorus (P), 0.06˜0.08% sulfur (S), 0.7˜1.0% chrome (Cr), 0.6˜1.0% copper (Cu), and a residue formed of Fe and inevitable impurities, wherein 3˜8 vol % steadite structure is formed. | 05-16-2013 |
20140261906 | BEARING STEEL AND METHOD FOR PRODUCING SAME - A bearing steel includes, as a metallographic structure, inclusions which contain complex oxysulfides including Rare Earth Metal, Ca, O, S, and Al, TiN, MnS, Al | 09-18-2014 |
20150144230 | NODULAR GRAPHITE CAST IRON AND METHOD FOR FABRICATING VANE USING THE SAME - A nodular graphite cast iron, a method for fabricating a vane for a rotary compressor using nodular graphite cast iron, and a vane for a rotary compressor using the same are provided. The nodular graphite cast iron includes 3.4 wt % to 3.9 wt % of carbon (C), 2.0 wt % to 3.0 wt % of silicon (Si), 0.3 wt % to 1.0 wt % of manganese (Mn), 0.1 wt % to 1.0 wt % of chromium (Cr), 0.04 wt % to 0.15 wt % of titanium (Ti), less than 0.08 w % of phosphorus (P), less than 0.025 wt % of sulphur (S), 0.03 wt % to 0.05 wt % of magnesium (Mg), 0.02 wt % to 0.04 wt % of rare earth resource, iron (Fe) and impurities as the remnants, and includes a bainite matrix structure, nodular graphite, and 15 vol % to 35 vol % of carbide. | 05-28-2015 |
20160024622 | PROCESS FOR PRODUCING A COMPONENT MADE OF HEAT-TREATED CAST IRON - The disclosure relates to a process for producing a hardened and tempered component made of specially heat-treated cast iron (e.g., AGI). According to the disclosure, a main body made of cast iron is prepared which may already be in the shape of an engine block. The main body may then be subjected to pre-machining, which may include forming one or more bores. Then, the main body may be hardened and tempered by a suitable heat treatment, such as a special heat treatment. After the disclosed heat treatment, post-processing of the component may follow, such as establishing the final dimensions. | 01-28-2016 |
148545000 | With tempering, ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening, or quenching | 3 |
20130105047 | METHOD FOR MANUFACTURING MECHANICAL COMPONENTS MADE OF PARTICULARLY WEAR-RESISTANT AUSTEMPERED SPHEROIDAL CAST IRON | 05-02-2013 |
20140251510 | CAM RING OF VANE PUMP AND METHOD OF MANUFACTURING CAM RING - A cam ring of a vane pump and a method of manufacturing a cam ring are provided. The cam ring may be formed of a material including approximately 3.0% to 3.5% of carbon (C), approximately 2.0% to 2.5% of silicon (Si), approximately 0.5% to 1.0% of manganese (Mn), approximately 0.5% to 1.0% of chromium (Cr), approximately 0.2% to 0.5% of copper (Cu), approximately 0.1% to 0.3% of phosphor (P), approximately 0.02% to 0.06% of boron (B), approximately 0.06% to 0.1% of sulfur (S), and approximately 0.043% or more of titanium (Ti) by weight ratio, and iron (Fe) and any inevitable impurity for the remainder, and may have a tempered martensite matrix including a carbide. | 09-11-2014 |
20160068923 | High-Carbon Iron-Based Amorphous Alloy Using Molten Pig Iron and Method of Manufacturing the Same - Provided is an iron-based amorphous alloy and a method of manufacturing the same. | 03-10-2016 |