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WO/2001/006203A1 |
A method of producing a high-density article is presented comprising selecting one or more primary tungsten-containing constituents with densities greater than 10.0 g/cc and one or more secondary constituents with densities less than 10....
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WO/2000/075387A1 |
A non-austempered spheroidal graphite cast iron obtained without austempering, and having a tensile strength of 650 to 850 MPa and an elongation of 7.0 to 14.5%, wherein a fatigue limit of its V-notched material is at least 290 MPa, the ...
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WO/2000/066797A1 |
The present invention relates to a metal matrix-composite material intended particularly for piston rings, said material being produced by mixing two different powder materials and transformation of said powders into an essentially compa...
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WO/2000/066795A1 |
The invention is a malleable iron comprising about 250 to 400 nodules of graphite per square millimeter as observed in a photomicrograph at 100x, and a Brinell hardness of about 195 to 550 BHN. Preferably, the malleable iron further comp...
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WO/2000/065118A1 |
The invention relates to a method for producing and processing casting materials for indefinite rollers with a sleeve part. The aim of the invention is to improve cast parts, especially rollers in the last stands of a strip rolling mill,...
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WO/2000/037698A1 |
The present invention provides a possibility to evaluate cooling curves recorded in near-eutectic cast iron melts. The curves are evaluated by determining the net amount of heat generated in the melt in the centre of the sample to the me...
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WO/2000/004198A1 |
A Fe alloy material for thixocasting which comprises 1.8 to 2.5 wt.% of C, 1.0 to 3.0 wt.% of Si, 0.1 to 1.5 wt.% of Mn and 0.5 to 3.0 wt.% of Ni, the remainder of the alloy being Fe and obligatory impurities, and has an amount of eutect...
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WO/2000/001860A1 |
A process for producing a compacted graphite iron (CGI) article, comprising the steps of: (a) providing a CGI base iron having a composition comprising, in weight percentages, about 3.2 to 3.8 total C, 2.8 to 4.0 Si and the balance at le...
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WO/1999/050010A1 |
A method of producing a ferrous-based metal article by a powder metallurgy route is described, the method comprises the steps of preparing a mixture of powder constituents having a desired overall chemical composition, compacting said po...
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WO/1999/050467A1 |
The invention relates to a method of producing objects of cast iron containing compacted (vermicular) graphite crystals, by preparing a cast iron melt having substantially a carbon content at the desired final level and a silicon content...
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WO/1999/029911A1 |
The invention relates to an inoculant for the manufacture of cast iron with lamellar, compacted or spheroidal graphite. The inoculant comprises between 40 and 80 % by weight of silicon, between 0.5 and 10 % by weight of calcium and/or st...
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WO/1999/019525A1 |
An iron alloy comprises 1.5-4.5 % carbon, 1.5-4.5 % silicon, at least 1.0 to 6.5 % molybdenum and optionally copper and/or nickel wherein (% Mo + % Ni + % Cu) does not exceed 6.5 %, balance iron and incidental impurities. The alloy is pr...
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WO/1999/013122A1 |
A disc brake rotor having a grey cast iron composition. Said composition comprises between 0.5 and 1.2 % by weight of copper, and a plurality of hard carbide forming metals, including both vanadium and titanium. The ratio between the wei...
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WO/1998/051832A1 |
An iron-based casting alloy and a process for making the alloy are provided by combining an iron-carbon-chromium system with primary carbides of vanadium, niobium, titanium, or combinations thereof without any eutectic carbides of vanadi...
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WO/1998/047648A2 |
Low-alloy cast iron tappet, apparatus, and process for it solve the problem of obtaining tappet face surface microstructure. The microstructure consists of fine complex carbide in the martensite form, which is highly resistant to wear, f...
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WO/1998/028456A1 |
Improved gray iron compositions comprise at least about 90 weight % iron, at least about 3.40 weight % carbon, from about 1 to 2.5 weight % silicon, from about 0.4 to 1.0 weight % manganese, and from about 0.02 to 0.07 weight % tin. Pref...
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WO/1998/017834A1 |
A material for casting friction-stressed machine parts is disclosed, in particular fluid-lubricated friction bearings. A material with a high admissible surface pressure, reduced wear and low tendency to gripping is obtained by using (a)...
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WO/1998/010111A1 |
A casting material for thixocasting, comprising an Fe-C-Si-base alloy which exhibits a chevron-shaped endothermic portion in the latent heat distribution curve and has a eutectic crystal content Ec of above 10 % by weight to below 50 % b...
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WO/1997/032049A1 |
A cast iron piston ring which has excellent abrasion resistance and seizing resistance and does not abrade a low-hardness, flaky graphite cast iron liner having a hardness of HRB 85 to 95. Composition: cast iron comprising C: 3.0 to 3.5 ...
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WO/1997/026376A1 |
A composition for inoculating grey iron, particularly low sulphur grey iron, comprises by weight: rare earth 1.0 - 4.0 %, preferably 1.5 - 2.5 %; strontium 0.5 - 1.5 %, preferably 0.7 - 1.0 %; calcium 1.5 % maximum, preferably 0.5 % maxi...
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WO/1997/013396A2 |
In a reinforcing component made from austenitic iron which is bonded intermetallically with an engine component made from an aluminium-base alloy, in particular a piston, the aim is to improve the strength of the bond irrespective of the...
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WO/1996/039544A1 |
An indefinite chill roll alloy composition is disclosed containing carbon ranging from 2.5 to 4.0 % by weight of the alloy and the carbon is present as free graphite in an amount ranging from 2-7 %, preferably 3-6 %, of the total carbon....
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WO/1996/038596A1 |
A high-strength spherical graphitic cast iron having, as cast, high tensile strength, elongation and Young's modulus and good machinability. The iron comprises, on a weight basis, 3.0-3.8 % of carbon, 2.0-2.6 % of silicon, 0.2-0.6 % of m...
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WO/1996/027688A1 |
A cladding material for centrifugal casting rolls which contains 2.5-4.7 % C, 0.8-3.2 % Si, 0.1-2.0 % Mn, 0.4-1.9 % Cr, 0.6-5 % Mo, 3.0-10.0 % V, and 0.6-7.0 % Nb, these elements satisfying the following relationships (1) to (4): (1) 2.0...
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WO/1996/007766A1 |
The invention relates to a new grey iron alloy comprising carbon present in an amount of 3.50-3.70 % by weight, vanadium present in an amount of 0.05-0.1 % by weight, molybdenum present in an amount of 0.20-0.30 % by weight, silicon pres...
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WO/1995/034394A1 |
A sleeve (6) serving as both a molten metal receiver and a pressure cylinder for a die casting machine is formed out of a metal material having a thermal conductivity of not more than 20 W/mK. Concretely speaking, the sleeve (6) is forme...
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WO/1995/031581A1 |
A chilled casting is characterised by high corrosion resistance in aggressive media and by a wear resistance that approaches that of commercially available types of chilled casting. The disclosed chilled casting contains 36 to 46 % by we...
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WO/1995/028506A1 |
Alloyed steel with high carbon content characterized in that its composition complies with the following composition, expressed in percentage weight: carbon from 1.1 to 2.0 %, manganese from 0.5 to 3.5 %, chrome from 1.0 to 4.0 %, silico...
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WO/1995/025826A1 |
The invention relates to a chill casting distinguished by high corrosion resistance in aggressive media and a similar wear resistance to that of standard commercial types of chill castings. The composition in wt % of the chill casting of...
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WO/1994/027763A1 |
The present invention relates to eutectic alloy systems, such as white irons, in which a primary phase grows out of the melt when the melt is cooled below the liquidus temperature and comprises pouring the molten metal alloy at a tempera...
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WO/1994/022606A1 |
A hot-rolling roll excellent in wear and seizure resistances, which has a composition by weight consisting of 2.0 - 4.0 % of carbon, 0.5 - 4.0 % of silicon, 0.1 - 1.5 % of manganese, 1.0 - 7.0 % chromium, 2.0 - 10 % of molybdenum, 2.0 - ...
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WO/1994/013847A1 |
This invention relates to a method of manufacturing cast iron having a high Ni content, a high strength and a low expansion in which the strength of cast iron is improved without spoiling the low expansibility thereof. The cast iron is u...
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WO/1994/010354A1 |
Gray cast iron, which is used in the manufacture of piston rings and sleeves for internal combustion engines, and which comprises: a bainitic, martensitic, pearlitic or ferritic metallic matrix, with an amount of equivalent carbide from ...
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WO/1994/008062A1 |
A moderately high carbon alloy grey iron having a carbon content ranging from 3.4 % to 3.6 % by weight and primary alloying addition of the combination of molybdenum and copper in amounts by weight ranging from 0.25 % to 0.40 % and from ...
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WO/1994/001592A1 |
The present invention relates to induced rotors such as those used in electromagnetic speed reducers for self-propelled vehicles, power test benches for internal combustion engines and other applications, which are made by using nodular ...
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WO/1994/000614A2 |
Austenitic cast iron with mainly vermicular and/or nodular graphite is useful as a reinforcing material intermetallically bound to the aluminium base material of the pistons of an internal combustion engine. This material provides improv...
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WO/1993/013232A1 |
A metallic solid comprising a metal-carbon matrix of an allotropic metal and metallofullerites of the allotropic metal is disclosed, along with an associated method of forming the solid by interrupting and temporarily holding a metal-car...
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WO/1993/012359A1 |
A rotor for use with a caliper in a brake system of a vehicle. The rotor has a hub with a plurality of openings therein for attachment to an axle which rotates with a wheel of the vehicle. The hub has either an annular disc or spokes whi...
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WO/1993/005908A1 |
A method of producing a chilled iron camshaft from a chromium containing cast iron is described. The cast iron material contains between 0.5 wt % to 1.2 wt % of chromium, the camshaft having a white iron structure adjacent chill inserts ...
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WO/1993/005193A1 |
A material of outer layer of the roll for rolling containing the following elements at respective ratio: C: 1.5-3.5 %; Si: 1.5 % or under; Mn: 1.2 % or under; Cr: 5.5-12.0 %; Mo: 2.0-8.0 %; V; 3.0-10.0 %; and Nb: 0.6-7.0 %, on condition ...
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WO/1993/005192A1 |
A material of outer layer of the roll for rolling containing the following elements at respective ratio: C: 1.5-3.5 %; Si: 1.5 % or under; Mn: 1.2 % or under; Cr: 5.5-12.0 %; Mo: 2.0-8.0 %; V: 30-10.0 %; and Nb: 0.6-7.0 %, on condition t...
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WO/1992/019783A1 |
Disclosed are methods of hardfacing and hardfaced tool joints used for connecting together dirlling pipe for drilling bore holes in the earth, such as drilling to possible oil and gas formations. The hardfacing (24) is welded to the oute...
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WO/1991/002101A1 |
An erosion and corrosion resistant ferrochromium alloy comprising the following composition, in wt. %, 34 - 50 chromium, 1.5 - 2.5 carbon, up to 5 manganese, up to 5 silicon, up to 5 molybdenum, up to 10 nickel, up to 5 copper, up to 1 %...
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WO/1989/005867A1 |
A bimetallic composite working cylinder has an external shell made of an alloy containing iron, carbon, vanadium, chromium and molybdenum. The range of composition of the alloy represented on a carbon-vanadium curve is delimited by a qua...
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WO/1989/001987A1 |
A casting steel has the following composition in per cent by weight: carbon 1.6-3.0; silicon 1.2-1.6; manganese 11.0-15.0; chromium 9.0-10.8; cerium 0.001-0.2; vanadium 0.15-0.3; titanium 0.05-0.3; aluminium 0.05-0.15; boron 0.005-0.015;...
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WO/1989/001533A1 |
A magnetic core material for high frequency made of Fe-Co base alloy having excellent high frequency alternating current magnetic properties is disclosed, which contains 45 to 53 wt % of Co, 0.3 to 3 wt % of C, and 0.1 to 2 wt % of one o...
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WO/1988/007594A1 |
An abrasion-resistant composite roll and a process for its production are disclosed. The roll comprises an outer layer composed of an iron-based allow containing at least one carbide of W, V, Nb, Ti, Ta, Zr and Hf crystallized from molte...
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WO/1988/001655A1 |
Working organ of an agricultural machine having a cutting edge made of a high-carbon steel which contains graphite in the structurally-free form in a quantity of 0.5-1.32 % of the total weight of the material.
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WO/1985/001962A1 |
A white cast iron having toughness, high tensile strength and abrasion resistance containing 0.01% to 4.0% boron in an iron-carbon alloy with the carbides in the form of globules and of an average size less than 4 microns. This white cas...
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WO/1984/004760A1 |
A tough, wear- and abrasion-resistant, high chromium, hypereutectic white iron alloy, with a composition by wt.% of >4.0 C, 25-45 Cr, 0-15 Mn, 0-10 Mo, 0-10 Ni, 0-2 B and 0-5 of at least one of Ti, W, Ta, V and Nb, subject to the proviso...
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