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WO/2007/073280A1 |
A process for production of compacted graphite iron using in-mould addition of a magnesium alloy is disclosed. The process is characterised by a step of pre-treating the base iron in a ladle or in a furnace with an alloy containing ceriu...
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WO/2007/056967A1 |
Process for producing sliding and/or mating rings which can be used for a sliding-ring seal, by manufacturing sliding and/or mating rings by casting from a grey cast iron material with a high thermal conductivity, by machining at least i...
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WO/2007/040464A1 |
An iron-based high-silicon alloy contains (in weight percent) 2.6-3.5% carbon, 3.7-4.9% silicon, 0.45-1.0% niobium, up to 0.6% manganese, up to 0.02% sulfur, up to 0.02% phosphorus, up to 0.5% nickel, up to 1.0% chromium, up to 0.1 % mag...
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WO/2007/014516A1 |
A modified steel and its manufacture process. The modified steel comprises 2.5~3.0% C, 0.8~1.2% Si, 0.7~1.5% Mn, ≤0.03% S, ≤0.03% P, and balance Fe. The process is as follows: compounding the ingredients, melting, modifying using mod...
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WO/2006/133355A2 |
The alloy of ductile cast iron to which boron has been added is found to have improved annealability as compared to a non-boron treat ductile iron. The addition of boron in amounts between about 10 ppm and 150 ppm by weight effectively c...
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WO/2006/126678A1 |
A roll for rolling seamless pipes which has a roll neck and a roll body, wherein the surface layer of the roll body comprises by mass: C: 1.5 to 2.5%, Si: 1.3 to 3.5%, Mn: 0.1 to 2.0%, Ni: 0.5 to 8.0%, Cr: 0.1 to 2.0%, Mo: 0.2 to 5.0%, V...
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WO/2006/123497A1 |
A cast iron sliding member (200) used for the cylinder inner surfaces of hydraulic devices such as hydraulic pumps and hydraulic motors and engine piston rings. The metallographic structure of the surface portion of the sliding member in...
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WO/2006/121826A2 |
A nodular, compacted graphite or other hybrid or duplex graphite morphology cast high silicon iron is disclosed which contains up to 1.5% tungsten, up to 0.8% vanadium, and up to 1.2% niobium; and at least 60.0% iron, all percentages are...
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WO/2006/094591A1 |
Disclosed is a cast iron material, especially a ledeburite cast iron material which has a high carbide content of at least 15.0 percent by weight and is provided with a characteristic, free, evenly distributed graphite embodiment that ca...
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WO/2006/084838A1 |
The invention relates to a high alloy iron that has an austenitic structure and a spherical graphite configuration and comprises the following components in percent by weight: carbon < 2.0 %, silicon 2.0 - 6.0 %, nickel 29 - 36 %, chrome...
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WO/2006/072663A2 |
The invention relates to ductile iron for engineering components requiring strength and toughness. This ductile iron is fine grain ductile iron. Fine grain ductile iron (FGDI) comprises as weight percentages: C 3.6-2.8, Si 1.3-2.6, Mg 0....
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WO/2006/068487A1 |
A method of controlling the microstructure of a cast iron which comprises: forming an iron melt; removing a portion of the melt; adding on inoculant to the removed portion; and then casting the removed portion. The inoculant comprises a ...
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WO/2006/056334A1 |
The invention relates to a spheroidal cast alloy for producing cast iron products with great mechanical strength, high wear-resistance and a high degree of ductility. Said alloy comprises the following as non-iron components: between 2.5...
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WO/2006/030795A1 |
An external layer for a rolling roll having a structure containing 20 to 60 area % of an MC carbide dispersed therein is produced by a method comprising subjecting a molten metal having a chemical composition, in mass %, C: 2.2 to 6.0 %,...
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WO/2006/024069A1 |
A method for producing a ferro-alloy in an electric arc furnace is disclosed. The method comprises the step of charging the furnace with an un-agglomerated carbon-containing polymer such that the polymer functions as a slag foaming agent.
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WO/2006/018053A1 |
The invention relates to a cast iron material, particularly a novel cast iron material that is provided with excellent resistance to corrosion, resistance to wear, and bending strength. Said cast iron material has a matrix structure made...
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WO/2006/018054A1 |
The invention relates to a cast iron material which is characterized especially by a matrix comprising > 50 percent of acicular ferrite, < 20 percent of austenite, < 30 percent of martensite, < 50 percent of perlite, and < 15 % of carbide.
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WO/2005/092542A1 |
A nano crystalline high carbon iron alloy powder having high hardness, which comprises aggregates of high carbon iron nano crystal grains and containing 3.6 to 6.7 mass % of carbon, wherein a material reinforcing the ferrite phase in the...
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WO/2005/092543A1 |
A nano crystalline white cast iron powder having high hardness, which comprises aggregates of white cast iron nano crystalline particles and containg 2.2 to 3.5 mass % of carbon, wherein a material reinforcing the ferrite phase in the ab...
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WO/2005/085488A1 |
A heat resisting cast iron containing graphite for use in exhaust system parts used at temperatures exceeding 800°C, which heat resisting cast iron comprises, on weight basis, 3.5 to 5.6% of Si and 1.2 to 15% of W, having an interlayer ...
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WO/2005/073424A1 |
A corrosion and erosion resistant alloy comprising as mandatory elements besides iron, in % by weight, 31 to 48 chromium, 0.01 to 0.7 nitrogen, 0.5 to 30 manganese and 0.3 to 2.5 carbon. This abstract is neither intended to define the in...
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WO/2005/040441A1 |
A wear resistant, high chromium white iron, in an unheat-treated condition has a microstructure substantially comprising austenite and M7C3 carbides. The white iron contains at least one martensite promoter and at least one austenite sta...
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WO/2005/028692A1 |
The invention relates to a Mo-Si-B alloy comprising a Mo or Mo mixed crystal matrix, in which 25 vol. % to 90 vol. % of molybdenum silicide and molybdenum borosilicide, optionally with additional molybdenum boride are included. The alloy...
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WO/2005/024084A1 |
An alloy steel composition which includes the following constituents by weight: 0.5 - 3.5% carbon, 0.2 - 0.8% silicon, 0.5 - 1.5% manganese, 0.1 - 2.0% nickel, 1.0 - 3.0% chromium, 0.1 - 0.5% molybdenum and 0.1 - 2.0% copper.
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WO/2005/007913A1 |
The invention relates to an iron material comprising lamellar graphite, which permits a simple adjustment of the optimal properties for a wide range of products, by variation of the content of the alloy components. The above is achieved ...
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WO/2005/007914A1 |
An austenite heat-resistant spheroidal graphite cast iron is disclosed which has a chemical composition including, in weight percent, 1-4.5% of Mo and 0.001-0.5% of Sn and/or Sb (2Sn + Sb). The austenite heat-resistant spheroidal graphit...
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WO/2004/083474A1 |
The invention provides a grey cast iron alloy for producing cylinder block and/or cylinder head castings, comprising iron, carbon, silicon, manganese, phosphorus, sulphur, tin, copper, chromium, molybdenum and nitrogen. The nitrogene con...
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WO/2004/072314A1 |
A tough cast iron or cast iron billet excelling in workability is provided without enormous thermal energy and prolonged heat treatment. There is further provided a process for efficiently producing the same. In particular, a cast iron c...
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WO/2004/005565A1 |
A casting steel having high strength and low thermal expansion which has a chemical composition in mass %: C: 0.1 to 0.8 %, Si: 0.1 to 1.0 %, Mn: 0.1 to 1.0 %, S: 0.01 to 0.1 %, Ni: more than 40 % and not more than 50 %, Co: 4 % or less ...
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WO/2003/100107A1 |
The invention relates to a method for production and forming of cast pieces of spheroidal graphite with improved mechanical properties, comprising the following steps: a) a liquid mixture is prepared with the following weight composition...
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WO/2003/095692A1 |
A substantially perlitic, grey cast iron alloy comprising, by weight, 3.2 - 3.49% carbon, 1.8 - 2.2% silicon, < 0.15% sulphur, < 0.15% phosphorus, 0.3 - 0.8% manganese, 0.2 - 0.4% chromium, 0.1 - 0.4% molybdenum, 0.03 - 0.3% vanadium, 0....
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WO/2003/093514A2 |
The invention concerns inoculation alloys for treating cast iron castings containing (by wt. %) 0.005 % to 3 % of an element of the group consisting of bismuth, lead and antimony, 0.3 to 10 % of metals of rare-earth group and optionally ...
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WO/2003/060174A1 |
The present invention is directed to a corrosion and erosion resistant High Chromium, Nitrogen bearing alloy, comprising the following composition in wt. %: 28 − 48 chromium, 0.01 − 0.7 nitrogen, 0.5 − 30 manganese, 0.01 − 5 boro...
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WO/2003/057937A1 |
The invention relates to a nodular graphite iron alloy for cast iron products with a high modulus E of elasticity which comprises the chemical components C, Si, Cu, Ni and/or Mo, Mn, Mg and S. Said alloy is composed of, in weight percent...
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WO/2003/054372A1 |
A method of casting parts with gray iron includes the steps of providing molten gray iron metal with controlled carbon, silicon, phosphorous, sulfur, manganese and chromium content; alloying said molten gray iron metal, prior to pouring,...
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WO/2003/050316A1 |
A method for reusing a steel sheet, which comprises recovering scraps of high tensile steel and ordinary steel without separation, melting the recovered scraps to produce a melt, and carrying out an adjustment of chemical composition of ...
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WO/2003/045624A2 |
Vermicular cast iron of high machinability and free from microporosities, comprising classes between 350 and 500 MEGA PASCAL of ultimate tensile strength, presenting a bigger amount of graphite by volume of vermicular cast iron, this inc...
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WO/2003/045625A2 |
Vermicular cast iron of high machinability free from microporosities, comprises classes between 350 and 500 MEGA PASCAL of ultimate tensile strength, presenting machinability at least 40 % bigger than that of conventional vermicular cast...
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WO/2003/045626A2 |
Graphitic cast iron of high mechanical strength, presenting a microstructure with adequate proportions of nodular graphite and adequate proportions of vermicular graphite to define a total amount of graphite in the range of 12-15 % in vo...
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WO/2003/014407A1 |
The invention relates to an improved high-strength nodular iron that is yet tenacious and can be easily machined and welded. The inventive iron comprises 4 to 6 % of silicon and a percentage of carbon reduced according to the carbon equi...
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WO/2002/095081A1 |
A nodular or compacted graphite iron contains up to 6 % aluminum, with high strength and good ductility over a wide temperature range, combined with excellent hot oxidation resistance and improved thermal fatigue resistance compared to d...
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WO/2002/092860A1 |
A granular metallic iron which is produced by subjecting a raw material containing a carbonaceous reducing agent and an iron−containing material to reduction and melting, characterized in that it has an iron content of 94 mass % or mor...
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WO/2002/048568A1 |
A compacted graphite iron brake component for use in a braking system having a final composition of: 3.0 to about 4.0 percent carbon; 2.15 to about 2.60 percent silicon; 0.40 to about 0.90 manganese; and the balance iron. The brake compo...
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WO/2002/002829A1 |
A cylinder liner (10) for high temperature, high performance engine applications is cast from gray iron material and thereafter austempered for a time sufficient to achieve a substantially bainitic microstructure that is stable against e...
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WO/2001/088213A1 |
In a method of producing an iron-based alloy containing chromium carbide, pieces of cemented carbide are added to an iron-based melt containing carbon, e.g. cast iron. Chromium, which regulates the solution of WC into the melt, is also a...
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WO/2001/055458A1 |
Processes for producing gray cast iron and the resulting gray cast iron exhibiting consistently good surface finish with prolonged tool life during finish machining with cubic boron nitride and silicon nitride cutting tools at high cutti...
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WO/2001/053545A1 |
The invention relates to foundry practice and metallurgy, in particular to inoculated cast iron technology and can be used for producing various casts. The inventive method consists in: melting batch in a melting facility, a preliminary ...
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WO/2001/044530A1 |
It is possible to generate a desirable form (soft, pliable) of sulfide inclusions in magnesium-treated cast irons. Thermodynamically, MnS and MoS¿2? are not stable in the presence of magnesium. However, by adding magnesium to a cast iro...
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WO/2001/038593A1 |
The invention provides a cast iron alloy comprising 3.0 - 3.8 % carbon, 0.6 - 2.5 % silicon, 0.2 - 0.65 % manganese, 0.01 - 0.1 % tin, <0.025 % sulfur, 0.001 - 0.020 % magnesium, 0.1 - 1.2 % copper, 0.04 - 0.2 % chromium, and balance up ...
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WO/2001/033095A2 |
The invention relates to a brake rotor having improved damping characteristics and a method for producing the same. A surface of the brake rotor is EDG machined, also known as IDM machine, for improving the damping characteristics of the...
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