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WO/1984/002924A1 |
A method of strengthening ferritic ductile iron castings while maintaining ductility at a high level. An iron alloy melt is cast consisting essentially of by weight 3.9-6.0% Si, 3,0-3.5% C, .1-.3% Mn, 0-.35% Mo, at least 1.25% Ni, no gre...
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WO/1984/002925A1 |
A method of making ductile cast iron with a matrix of acicular ferrite and bainite. A melt by weight of 3.0-3.6% carbon, 3.5-5.0% silicon, .7-5.0% nickel, 0-.3% Mo, > .015% S, > .06% P (remainder Fe) is subjected to a nodularizing agent ...
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WO/1984/000385A1 |
A white cast iron having toughness, high tensile strength and abrasion resistance containing 0.1 % 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 ca...
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WO/1983/001258A1 |
A cast iron contains components at the following ratio in % by weight: carbon 2.5-4.2; silicon 0.3-1.2; manganese 0.2-1.0; nickel 0.02-0.4; chromium 0.3-0.8; titanium 0.05-0.3; aluminium 1.0-30.0; calcium 0.002-0.2; sulphur 0.001-0.05; p...
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WO/1982/003410A1 |
In order to prepare vermicular graphite cast iron in a converter, it is proposed to operate a disulphurization of the primary melting by treating with pure magnesium and alloying to the magnesium, the proportion of Mg to S being in the r...
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WO/1981/001861A1 |
Vermicular graphite cast iron is produced by adding to molten iron simultaneously up to 0.3% by weight of the iron of one or more rare earth metals and in excess of 0.2% by weight of the iron of calcium the quantity of rare earth metal b...
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WO/1979/000274A1 |
Hitherto metal pieces made of alloy cast iron Fe/Cr and exposed to wear, of which the basic mass had a martensitic character, contained, without any exception, secondary carbide deposits; this was due to the fact that these pieces, once ...
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JP2024042197A |
[Problem] The present invention provides an outer layer material for hot rolling rolls having excellent wear resistance and fatigue resistance as well as excellent seizure resistance, a method for producing the same, a composite roll for...
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JP2024039270A |
The present invention provides a high chromium cast iron with improved wear resistance and a method for producing the same. [Solution] A high chromium cast iron containing C, Cr and Fe, wherein the C content is 2.1% by mass or more and 3...
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JP2024039271A |
The present invention provides a high chromium cast iron with improved wear resistance and a method for producing the same. [Solution] A high chromium cast iron containing C, Cr and Fe, wherein the C content is 3.2% by mass or more and 4...
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JP2024039269A |
The present invention provides a high chromium cast iron with improved wear resistance and a method for producing the same. [Solution] A high chromium cast iron containing C, Cr and Fe, wherein the C content is 2.1% by mass or more and 7...
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JP2024512242A |
Some variants are carbon negative carbon products, with 0 kg CO per metric ton of carbon negative carbon products.2A carbon negative carbon product is provided that is characterized by a carbon strength of less than e and contains at lea...
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JP2024027860A |
[Problem] To provide an easily meltable Fe-based alloy from which a shaped object having excellent hardness and corrosion resistance can be obtained. [Solution] The material of the powder is an Fe-based alloy. This Fe-based alloy is Cr: ...
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JP2024027590A |
An object of the present invention is to provide an outer layer material for a hot rolling roll and a composite roll for hot rolling which have better seizure resistance and slip resistance than conventional ones. [Solution] In mass %, C...
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JP2024509076A |
The present invention relates to cast iron materials. The invention further relates to the use of cast iron materials and ultimately to a method for manufacturing and/or lining molds. The object of the invention is a cast iron material f...
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JP7436366B2 |
A component for contacting hydrogen, including at least one surface, which is provided for coming into contact with a hydrogen atmosphere, at least this surface being made from steel, wherein the steel has a microstructure which includes...
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JP2024020072A |
[Problem] To obtain a flake graphite cast iron product with high uniformity of hardness/structure while maintaining necessary hardness. [Solution] The flake graphite cast iron product according to the present disclosure has, in mass %, C...
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JP7425443B2 |
To provide a lap tool which has high polishing efficiency and excellent wear resistance.A lap tool is made of FCV cast iron which contains graphite and has a tensile strength of 300 MPa or more, and the graphite has a width of 6 to 80 μ...
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JP2024500882A |
An object of the present invention is to provide an austenitic high manganese steel for disc brakes that has an excellent coefficient of friction. The present invention relates to a high manganese steel for disc brakes, and discloses an ...
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JP7407485B2 |
An iron alloy material for casting includes 0.3 to 3.5 mass% of C, 0.1 to 3.0 mass% of Si, 26.0 to 42.0 mass% of Ni, 0.02 to 0.50 mass% of Sb, and a balance that is Fe and an inevitable impurity/impurities.
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JP2023179394A |
To provide a high carbon martensitic stainless steel having improved forgeability, impact strength, wear resistance, and corrosion resistance.A high carbon martensitic stainless steel comprises 1.7 to 1.9 wt.% of C, 17 to 18 wt.% of Cr, ...
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JP2023178732A |
To provide a roll outer layer for hot rolling and a composite roll for hot rolling which demonstrate superior wear resistance.A roll outer layer for hot rolling has a specific composition, and includes a structure containing 5.0-20.0% fi...
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JP7385863B2 |
An ammonia synthesis catalyst that is for synthesizing ammonia from nitrogen and hydrogen. The ammonia synthesis catalyst comprises an iron-based alloy piece that contains vanadium.
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JP7380051B2 |
To provide spheroidal graphite cast iron which is suitable as a material that constitutes various machines and automotive parts, in particular a material constituting a suspension component, excellent in the strength and toughness, and h...
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JP2023547966A |
The present invention provides a coated cast iron substrate with a coating comprising nanographite and a binder that is sodium silicate, wherein the cast iron substrate contains, by weight percent, from 2.0 to 6.67% C, and optionally: el...
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JP7375809B2 |
This method for producing a plated black-core malleable cast iron member having a plating layer formed on the surface thereof, includes: a step for performing graphitization in a non-oxidizing and decarburizing atmosphere; a step for sub...
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JP2023160133A |
To provide a softening heat treatment method for high-chromium cast iron, where the machinability of the high-chromium cast iron can be improved by controlling the Rockwell hardness HRC after heat treatment of the high-chromium cast iron...
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JP2023159547A |
To improve the temper softening resistance of spheroidal graphite cast iron during nitridation treatment, to increase the hardness of the spheroidal graphite cast iron members, thereby suppressing a decrease in their fatigue strength.A s...
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JP7369513B2 |
A nodular cast alloy, a casting made therefrom, and a production process therefor, which has a perlitic-ferritic microstructure for cast iron products and has a high strength combined with good ductility and toughness even in the cast st...
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JP2023152728A |
To provide a valve seat formed of an iron sintered alloy which is excellent in wear resistance and falling resistance.There is provided, a two layer structure valve seat 1 which is obtained by integrating by sintering, a function member ...
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JP2023152727A |
To provide a valve seat made of an iron sintered alloy excellent in wear resistance and falling resistance.There is provided a two layer structure valve seat 1 which is obtained by integrating by sintering, a function member layer 11, an...
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JP2023130137A |
To provide a cold rolling roller that is obtained by discharge dull work, has improved roughness maintenance properties, and also has improved surface roughening resistance, cracking resistance, and grindability of roll base material.A c...
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JP2023121110A |
To provide an aluminum-containing heat-resistant spheroidal graphite cast iron, in particular, a high-Si spheroidal graphite cast iron containing 4±0.1 mass% of Si (silicon) and 0.6±0.05 mass% of Mo (molybdenum) that can meet a require...
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JP7316606B2 |
To provide a spheroidal graphite cast iron that contains spheroidized graphite in its structure and has a sufficient tensile strength even when expensive Ni or Mo is not intentionally added thereto, and a heat treatment method for obtain...
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JP7314054B2 |
A bushing formed of different alloys selected to accommodate different operating conditions is provided. For example, the bushing could include an iron-based alloy in a portion of the bushing exposed to lower temperatures, and a cobalt-b...
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JP7302232B2 |
To provide a centrifugal casting composite roll for hot rolling of which abrasion resistance is high in the case close to an initial diameter and heat crack resistance is enhanced in the case close to a waste diameter by cutting.There is...
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JP7300351B2 |
To provide a polishing surface plate using a spheroidal graphite cast iron that can be easily produced and can improve the properties suitable for polishing the object to be polished.Provided is a polishing surface plate using a spheroid...
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JP7298862B2 |
To provide an austenitic cast iron having low magnetic characteristics and improved mechanical properties.An austenitic cast iron has, in mass%, C: 2.5-3.0%, Si: 1.8-4.3%, Mn: 6.0-7.0%, Ni: 8.0-14.0%, P: 0.25% or less, Cr: 0.2% or less a...
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JP7278157B2 |
To provide a flaky graphite cast iron material having excellent machinability, a method for machining the flaky graphite cast iron material at high speed, and a flaky graphite cast iron member and a method of producing the same.A flaky g...
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JP7278316B2 |
A flake graphite cast-iron product satisfies the inequalities: 2.7 ≤ C ≤ 3.5, 1.2 ≤ Si ≤ 1.7 and CE ≤ -0.33×Si+4.36 wherein C and Si respectively represent the amounts (% by mass) of carbon and silicon contained therein and th...
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JP7251118B2 |
To provide a gear device having an improved service life, and a robot comprising the gear device.A gear device has an internal gear composed mainly of spheroidal graphite cast iron containing graphite particles and a matrix structure, an...
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JP2023017855A |
To provide a hermetic compressor capable of securing abrasion resistance even in a sliding environment in which a first member and a second member, for example, a blade and a roller, which slide against each other, of a compression mecha...
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JP7217150B2 |
Embodiments of an iron-based coating configured to be thermally sprayed are disclosed. The iron-based coatings can be fully readable, thus allowing for thickness measurements to be performed on the coating with standard magnetic measurin...
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JP7216437B2 |
The present invention relates to a 3D-printed iron based alloy product comprising carbon, tungsten, vanadium, cobalt, chromium and molybdenum with very high hardness and very good high temperature properties thermal properties as well as...
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JP7212076B2 |
The present invention relates in one aspect to an iron-based alloy composition comprising: boron (B): 1. 6-2.4 wt.%; carbon (C): 2.2-3.0 wt.%; chromium (Cr): 3.5-5.0 wt.%; manganese (Mn): below 0.8 wt.%; molybdenum (Mo): 16.0-19.5 wt.%; ...
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JP7212077B2 |
The present invention relates in one aspect to an iron-based alloy composition comprising: boron (B): 1.6-2.4 wt.%; carbon (C): 1.7-3.0 wt.%; molybdenum (Mo): 16.0-19.5 wt.%; nickel (Ni): 3.5-6.5 wt.%; manganese (Mn): below 0.8 wt.%; sil...
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JP2023001684A |
To provide a cast iron-made cylindrical member that allows for increased strength while ensuring high slidability of the inner peripheral part and a method for producing the same.To a molten metal that contains C: 3.5-3.85%, Si: 2.3-2.7%...
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JP2022182485A |
To provide tool steel excellent in corrosion resistance, abrasion resistance, and toughness.Tool steel contains C: 2.0 mass% or more and 3.0 mass% or less, Si: 0.1 mass% or more and 2.0 mass% or less, Mn: 0.1 mass% or more and 2.0 mass% ...
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JP7185672B2 |
Embodiments of wear resistant ferrous alloys are disclosed herein. In some embodiments, ferrous alloys can have a matrix which includes near spherical and hypereutectic borides and/or borocarbides while at the same time avoiding the form...
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JP7171892B2 |
A sealed compressor includes a compression mechanism part compressing a refrigerant in a sealed container. The compression mechanism part includes a first member and a second member sliding with each other. The first member is a substrat...
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